Dierk Schröder, Joachim Böcker
Elektrische Antriebe – Regelung von Antriebssystemen
5. Auflage, Springer Vieweg, 2021

Joachim Böcker
Elektrische Antriebstechnik
Vorlesungsskript, Universität Paderborn, 2020

Auswahl an Veröffentlichungen

2022

A. Brosch, J. Rauhaus, O. Wallscheid, J. Böcker, D. Zimmer
Data-Driven Adaptive Torque Oscillation Compensation for Multi-Motor Drive Systems
IEEE Open Journal of Industry Applications, 2022

N. Förster, P. Rehlaender, O. Wallscheid, F. Schafmeister, J. Böcker
An Open-Source Transistor Database and Toolbox as an Unified Software Engineering Tool for Managing and Evaluating Power Transistors
Proc. 37th IEEE Applied Power Electronics Conference (APEC), IEEE, 2022

L. Keuck, F. Schafmeister, J. Böcker
Robust Hysteresis Control for LLC Resonant Converters Using a Fully Isolated Measurement Scheme
Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM), IEEE, 2022

2021

B. Strothmann, G. Book, F. Schafmeister and J. Boecker
Single-Phase Operation of Common-Mode-Free Bidirectional Three-Phase PFC-Rectifier for Non-Isolated EV Charger with Minimized DC-Link
PCIM Europe digital days 2021; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, 2021

B. Strothmann, F. Schafmeister and J. Böcker
Common-Mode-Free Bidirectional Three-Phase PFC-Rectifier for Non-Isolated EV Charger
2021 IEEE Applied Power Electronics Conference and Exposition (APEC), 2021

M. Hagemeyer, P. Wallmeier, F. Schafmeister, J. Böcker
Comparison of Unidirectional Three- and Four-Wire-Based Boost PFC-Rectifier Topologies for Non-Isolated Three-Phase EV On-Board Chargers Under Common-Mode Aspects
Applied Power Electronics Conference (APEC), Phoenix, Arizona, 2021

P. Rehlaender, R. Unruh, L. Hankeln, F. Schafmeister; J. Böcker
Frequency-Doubler Modulation for Reduced Junction Temperatures for LLC Resonant Converters Operated in Half-Bridge Configuration
23nd European Conference on Power Electronics and Applications (EPE’21 ECCE Europe), 2021

R. Unruh, J. Lange, F. Schafmeister, J. Böcker
Adaptive Zero-Sequence Voltage Injection for Modular Solid-State Transformer to Compensate for Asymmetrical Fault Conditions
23nd European Conference on Power Electronics and Applications (EPE’21 ECCE Europe), 2021

Daniel Urbaneck, Philipp Rehlaender, Joachim Böcker, Frank Schafmeister
LLC Converter in Capacitive Operation Utilizing ZCS for IGBTs – Theory, Concept and Verification of a 2 kW DC-DC Converter for EVs
2021 IEEE Applied Power Electronics Conference and Exposition (APEC), 2021

P. Rehlaender, R. Unruh, F. Schafmeister, J. Boecker
Alternating Asymmetrical Phase-Shift Modulation for Full-Bridge Converters with Balanced Switching Losses to Reduce Thermal Imbalances
2021 IEEE Applied Power Electronics Conference and Exposition (APEC), 2021

Anian Brosch, Oliver Wallscheid, Joachim Böcker
Model Predictive Control of Permanent Magnet Synchronous Motors in the Overmodulation Region Including Six-Step Operation
IEEE Open Journal of Industry Applications 2021

Anian Brosch, Oliver Wallscheid, Joachim Böcker
Torque and Inductances Estimation for Finite Model Predictive Control of Highly Utilized Permanent Magnet Synchronous Motors
IEEE Transactions on Industrial Informatics 2021

Dierk Schröder, Joachim Böcker
Elektrische Antriebe – Regelung von Antriebssystemen, 5.Auflage
Springer Vieweg, 2021

W. Kirchgässner, O. Wallscheid, J. Böcker
Data-Driven Permanent Magnet Temperature Estimation in Synchronous Motors with SupervisedMachine Learning: A Benchmark
IEEE Transactions on Energy Conversion 2021

2020

Anian Brosch, Sören Hanke, Oliver Wallscheid, Joachim Böcker
Data-Driven Recursive Least Squares Estimation for Model Predictive Current Control of Permanent Magnet Synchronous Motors
IEEE Transactions on Power Electronics 2020

K.S. Stille, D. Weber, J. Lange, T. Vogt, O. Wallscheid, J. Böcker
Emulation of Microgrids for Research and Validation of Control and Operation Strategies
International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM), Virtual Meeting, 2020

J. Böcker
Analysis of the Magnetic Skin Effekt in Motors and Inductors
International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM), Virtual Meeting, 2020

P. Rehlaender, T. Grote, S. Tikhonov, M. Schroeder, F. Schafmeister, J. Boecker
A 3,6 kW Single-Stage LLC Converter Operating in Half-Bridge, Full-Bridge and Phase-Shift Mode for Automotive Onboard DC-DC Conversion
PCIM Europe digital days 2020, Germany, 2020

T. Rueschenbaum, P. Rehlaender, P. Ha, T. Grote, F. Schafmeister, J. Boecker
Two-Stage Automotive DC-DC Converter Design with Wide Voltage-Transfer Range Utilizing Asymmetric LLC Operation
PCIM Europe digital days 2020, Germany, 2020

P. Rehlaender, S. Tikhonov, F. Schafmeister, J. Boecker
Dual Interleaved 3.6 kW LLC Converter Operating in Half-Bridge, Full-Bridge and Phase-Shift Mode as a Single-Stage Architecture of an Automotive On-Board DC-DC Converter
2020 22nd European Conference on Power Electronics and Applications (EPE’20 ECCE Europe), France, 2020

Daniel Urbaneck, Philipp Rehlaender, Frank Schafmeister, Joachim Böcker
LLC Converter Design in Capacitive Operation utilizes ZCS for IGBTs – a Concept Study for a 2.2 kW Automotive DC-DC Stage
PCIM Europe digital days 2020, Germany, 2020

M.E. Ahmad, F. Schafmeister, J. Böcker
Practical Implementation and Verification of Simple-to-Implement Digital Current Observer for Half-Bridge Topologies
PCIM Europe digital days 2020, Germany, 2020

W. Kirchgässner, O. Wallscheid, J. Böcker
Estimating Electric Motor Temperatures with Deep Residual Machine Learning
IEEE Transactions on Power Electronics 2020

S. Hanke, O. Wallscheid, J. Böcker
Comparison of Artificial Neural Network and Least Squares Prediction Models for Finite-Control-Set Model Predictive Control of a Permanent Magnet Synchronous Motor
The 10th International Conference on Power Electronics, Machines and Drives (PEMD 2020)

R. Unruh, F. Schafmeister, J. Böcker
11kW, 70kHz LLC Converter Design with Adaptive Input Voltage for 98% Efficiency in an MMC
IEEE 21st Workshop on Control and Modeling for Power Electronics (COMPEL), 2020

R. Unruh, F. Schafmeister, J. Böcker
Evaluation of MMCs for High-Power Low-Voltage DC-Applications in Combination with the Module LLC-Design
22nd European Conference on Power Electronics and Applications (EPE’20 ECCE Europe), 2020

B. Strothmann, T.Piepenbrock, F. Schafmeister and J. Böcker
Heat dissipation strategies for silicon carbide power SMDs and their use in different applications
PCIM Europe digital days 2020, Germany, 2020

M. Stender, O. Wallscheid, J Böcker
Accurate Torque Estimation for Induction Motors by Utilizing Globally Optimized Flux Observers
International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM), Virtual Meeting, 2020

M. Stender, O. Wallscheid, J Böcker
Inverter Data Set – Three-Phase IGBT Two-Level Inverter for Electrical Drives
Kaggle, 2020

M. Stender, O. Wallscheid, J Böcker
Data Set Description: Three-Phase IGBT Two-Level Inverter for Electrical Drives
DOI: 10.13140/RG.2.2.23335.37280, 2020

M. Stender, O. Wallscheid, J Böcker
Comparison of Gray-Box and Black-Box Two-Level Three-Phase Inverter Models for Electrical Drives
IEEE Transactions on Industrial Electronics (Early Access), 2020

R. Unruh, F. Schafmeister, N. Fröhleke, J. Böcker
1-MW Full-Bridge MMC for High-Current Low-Voltage (100V-400V) DC-Applications
PCIM Europe digital days 2020, Germany, 2020

S. Hanke, O. Wallscheid, J. Böcker
Data Set Description: Identifying the Physics Behind an Electric Motor – Data-Driven Learning of the Electrical Behavior (Part II)
arXiv: 2003.06268, 2020

S. Hanke, O. Wallscheid, J. Böcker
Data Set Description: Identifying the Physics Behind an Electric Motor – Data-Driven Learning of the Electrical Behavior (Part I)
arXiv:2003.07273, 2020

2019

W.Kirchgässner, O. Wallscheid, J. Böcker
Deep Learning for Rotor and Stator Temperature Estimation in Electric Motors
11th expert forum electric vehicle drives (E-Motive), Schweinfurt, Germany, 2019

M. Stender, O. Wallscheid, J Böcker
Development of a Black-Box Two-Level IGBT Three-Phase Inverter Compensation Scheme for Electrical Drives
IEEE International Symposium on Industrial Electronics (ISIE), Vancouver, Canada, 2019

W. Kirchgässner, O. Wallscheid, J. Böcker
Deep Residual Convolutional and Recurrent Neural Networks for Temperature Estimation in Permanent Magnet Synchronous Motors
IEEE International Electric Machines & Drives Conference (IEMDC), San Diego, USA, 2019

W. Kirchgässner, O. Wallscheid, J. Böcker
Empirical Evaluation of Exponentially Weighted Moving Averages for Simple Linear Thermal Modeling of Permanent Magnet Synchronous Machines
IEEE International Symposium on Industrial Electronics (ISIE), Vancouver, Kanada, 2019

P. Rehlaender, T. Grote, F. Schafmeister, J. Böcker
Analytical Modeling and Design of an Active Clamp Forward Converter Applied as a Single-Stage On-Board DC-DC Converter for EVs
PCIM Europe 2019, Nürnberg, Germany, 2019

P. Rehlaender, T. Grote, F. Schafmeister, J. Böcker
Interleaved Active Clamp Forward Converters as Single Stage On-Board DC-DC Converters for EVs – an Accurate Model and Design Considerations
PCIM Europe 2019, Nürnberg, Germany, 2019

P. Rehlaender, T. Grote, F. Schafmeister, J. Böcker
Analytical Topology Comparison for a Single Stage On-Board EV-Battery Converter
IEEE International Symposium on Industrial Electronics (ISIE),Vancouver, Kanada, 2019

P. Rehlaender, T. Grote, F. Schafmeister, S. Tikhonov, H. Niejende, P.Thiemann, J. Böcker
A PCB Integrated Winding Using a Litz Structure for a Wireless Charging Coil
21st European Conference on Power Elektronics and Applications (EPE-ECCE),Genua, Italy, 2019

B. Strothmann, F. Schafmeister and J. Böcker
Pareto Design and Switching Frequencies for SiC MOSFETs Applied in an 11kW Buck Converter for EV-Charging
2019 IEEE Applied Power Electronics Conference and Exposition (APEC), CA, USA, 2019

B. Strothmann, F. Schafmeister and J. Böcker
Common Mode Analysis of Non-Isolated Three-Phase EV-Charger for Bi-Directional Vehicle-to-Grid Operation
PCIM Europe 2019, Nürnberg, Germany, 2019

R. Unruh, F. Schafmeister, N.Fröhleke, J. Böcker
MMC-Topology for High-Current and Low-Voltage Applications with Minimal Number of Submodules, Reduced Switching and Capacitor Losses
PCIM Europe 2019, Nürnberg, Germany, 2019

S. Bolte, F. Schafmeister, J. Böcker
Bidirectional Resonant Converter with Integrated Magnetics for On-Board Chargers
IEEE International Symposium on Industrial Electronics (ISIE), Vancouver, Kanada, 2019

S. Bolte, F. Schafmeister, J. Böcker
LCC Resonant Converter for Piezoelectric Transducers with Phase Shift Control
PCIM Europe 2019, Nürnberg, Germany, 2019

D. Gaona, O. Wallscheid, J. Böcker
Improved Fusion of Permanent Magnet Temperature Estimation Techniques for Synchronous Motors Using a Kalman Filter
IEEE Transactions on Industrial Electronics, Vol. 57, Iss. 3, pp. 1708-1717, 2019

O. Wallscheid, F. Ngoumtsa, J. Böcker
Hierarchical Model Predictive Speed and Current Control of an Induction Machine Drive With Moving-Horizon Load Torque Estimator
IEEE International Electric Machines & Drives Conference (IEMDC), San Diego, USA, 2019

O. Wallscheid, M. Shafiq, J. Böcker
Stator Flux-Based Field-Oriented Position-Sensorless Control of Permanent Magnet Synchronous Motors With Limited Parameter Knowledge
IEEE International Symposium on Industrial Electronics (ISIE), Vancouver, Kanada, 2019

S. Hanke, S. Peitz, O. Wallscheid, S. Klus, J. Böcker, M. Dellnitz
Finite-Control-Set Model Predictive Control for a Permanent Magnet Synchronous Motor Application with Online Least Squares System Identification
IEEE International Symposium on Predictive Control of Electrical Drives and Power Electronics (PRECEDE), Quanzhou, China, 2019

S. Hanke, O. Wallscheid, J. Böcker
Continuous-Control-Set Model Predictive Control With Integrated Modulator in Permanent Magnet Synchronous Motor Applications
IEEE International Electric Machines & Drives Conference (IEMDC), San Diego, USA, 2019

L. Keuck, F. Schafmeister, J. Böcker
Computer-Aided Design and Optimization of an Integrated Transformer with Distributed Air Gap and Leakage Path for an LLC Resonant Converter
IEEE Applied Power Electronics Conference and Exposition (APEC), Anaheim, CA, USA, 2019

Lukas Keuck, Frank Schafmeister, Joachim Boecker, Herbert Jungwirth, Michael Schmidhuber
Computer-Aided Design and Optimization of an Integrated Transformer with Distributed Air Gap and Leakage Path for LLC Resonant Converter
PCIM Europe 2019; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, Nürnberg, Germany, 2019

2018

M. T. Joy, J. Böcker
Speed Estimation in Induction Machines at all Speed Ranges Using Sensing Windings
8th International Conference on Power Electronics, Drives and Energy Systems (IEEE PEDES 2018), Chennai, Indien

M. Hagemeyer, F. Schafmeister, J. Böcker
Coupled Inductor Design for Interleaved High-Current DC-DC Converters
International Conference on Electrical Machines and Systems (ICEMS), Jeju, Korea, 2018

O. Wallscheid, M .Schenke. und  J. Böcker
Improving Torque and Speed Estimation Accuracy by Conjoint Parameter Identification and Unscented Kalman Filter Design for Induction Machines
International Conference on Electrical Machines and Systems (ICEMS), Jeju, Korea, 2018

O. Wallscheid, M .Schenke. und  J. Böcker
A Combined Approach to Identify Induction Machine Parameters and to Design an Extended Kalman Filter for Speed and Torque Estimation
IEEE International Power Electronics and Motion Control Conference (PEMC), Budapest, Hungary, 2018

M.T. Joy, J. Böcker
Sensorless Control of Induction Motor Drives using Additional Windings on the Stator
2018 IEEE 9th International Symposium on Sensorless Control for Electrical Drives (SLED), Helsinki, Finnland, 2018

O. Buchholz, J. Böcker, J. Bonifacio
Online-Identification of the Induction Machine Parameters Using the Extended Kalman Filter
23rd International Conference on Electrical Machines (ICEM), Alexandroupoli, Greece, 2018

M.T. Joy, J. Böcker
Speed Estimation in Induction Motors Using Additional Windings
20th European Conference on Power Elektronics and Applications (EPE-ECCE), Riga, Lettland, 2018

D. Weber, M.I.R. Grabo, O. Wallscheid, J. Böcker, T. Klaus, S. Krauter
Lifetime Extension of Photovoltaic Modules by Influencing the Module Temperature Using Phase Change Material
7th World Conference on Photovoltaic Energy Conversion (WCPEC-7), Hawaii, USA, 2018

D. Weber, K.S. Stille, O. Wallscheid, J. Böcker
Energy Management for a Nano-CHP Unit and an Electrical Storage System in a Residential Application
4th International Symposium on Power Electronics, Electrical Drives, Automation and Motion (speedam), Amalfi, Italien, 2018

O. Buchholz, J. Böcker
Online-Identification of the Machine Parameters of an Induction Motor Drive
27th IEEE International Symposium on Industrial Electronics (ISIE), Cairns, Australien, 2018

S. Bolte, N. Fröhleke, J. Böcker
GaN Buck Converter in CCM with Optimized High-Frequency Inductors
PCIM Europe 2018, Nürnberg, Germany, 2018

L. Keuck, A. Munir, F. Schafmeister, J. Böcker
Adaptive Frequency Control of DC-DC-Converters for Maximum Efficiency Using Artificial Neural Network
PCIM Europe 2018, Nürnberg, Germany, 2018

L. Keuck, N. Jabbar, F. Schafmeister, J. Böcker
Switching Loss Characterization of Wide Band-Gap Devices by an Indirect Identification Methodology
20th European Conference on Power Electronics and Applications (EPE’18 ECCE Europe), Riga, Latvia, 2018

S. Hanke, S. Peitz, O. Wallscheid, S. Klus, J. Böcker, M. Dellnitz
Koopman Operator-Based Finite-Control-Set Model Predictive Control for Electrical Drives
arXiv:1804.00854

2017

T. Vogt, J. Badeda, J. Böcker, D.U. Sauer
Consideration on primary control reserve provision by industrial microgrids in grid-coupled operation
12th IEEE International Conference on Power Electronics and Drive Systems (PEDS 2017), Honolulu, USA, 2017

M. Hagemeyer, N. Fröhleke, J. Böcker, B. Rödder, L. Aßmann, B. Völkel
Design of a Flywheel Energy Storage System for High-Current Pulsating Loads
12th IEEE International Conference on Power Electronics and Drive Systems (PEDS 2017), Honolulu, USA, 2017

D. Gaona, O. Wallscheid, J. Böcker
Sensitivity Analysis of a Permanent Magnet Temperature Observer for PM Synchronous Machines Using the Monte Carlo Method
12th IEEE International Conference on Power Electronics and Drive Systems (PEDS 2017), Honolulu, USA, 2017

D. Gaona, O. Wallscheid, J. Böcker
Glocal Identification Methods for Low-Order Lumped-Parameter Thermal Networks Used in Permanent Magnet Synchronous Motors
12th IEEE International Conference on Power Electronics and Drive Systems (PEDS 2017), Honolulu, USA, 2017

D. Gaona, O. Wallscheid, J. Böcker
Fusion of a Lumped-Parameter Thermal Network and Speed-Dependent Flux Observer for PM Temperature Estimation in Synchronous Machines
3rd IEEE Anual Southern Power Electronics Conference (SPEC), Puerto Varas, Chile, 2017

O. Buchholz, J. Böcker
Gopinath-Observer for Flux Estimation of an Induction Machine Drive System
3rd IEEE Anual Southern Power Electronics Conference (SPEC), Puerto Varas, Chile, 2017

S. Bolte, J. K. Afridi, J. Böcker
Winding Concepts for High Frequency Inductors with Reduced DC Resistance
IEEE International Communications Energy Conference (INTELEC), Queensland, Australia, 2017

S. Bolte, C. Henkenius,, J. Böcker, E. Kenig, A. Zibart, H. Figge
Water-Cooled On-Board Charger With Optimized Cooling Channel
19th European Conference on Power Electronics and Applications, EPE’17 ECCE Europe, Warsaw, Poland, 2017

S. Hanke, O. Wallscheid, J. Böcker
A Direct Model Predictive Torque Control Approach to Meet Torque and Loss Objectives Simultaneously in Permanent Magnet Synchronous Motor Applications
4th Symposium on Predictive Control of Electrical Drives and Power Electronics (PRECEDE 2017), Pilsen, Czech Republic, 2017

O. Wallscheid, J. Böcker
Derating of Automotive Drive Systems Using Model Predictive Control
4th Symposium on Predictive Control of Electrical Drives and Power Electronics (PRECEDE 2017), Pilsen, Czech Republic, 2017

S. Bolte, C. Henkenius, J. Böcker, E. Kenig, A. Zibart, H. Figge
Wassergekühltes On-Board-Ladegerät mit optimiertem Kühlkanal
wt Werkstattstechnik online Jahrgang 107, Springer VDI-Verlag, 2017

O. Wallscheid, A. Specht, J. Böcker
Observing the Permanent-Magnet Temperature of Synchronous Motors Based on Electrical Fundamental Wave Model Quantities
IEEE Transactions on Industrial Electronics, Volume 64, 2017

S. Bolte, L. Keuck, J.K. Afridi, N. Fröhleke, J. Böcker
Calorimetric Measurements with Compensating Temperature Control
IEEE International Symposium on Industrial Electronics, Edinburgh, Scotland, United Kingdom, 2017

T. Vogt, D. Weber, O. Wallscheid, J. Böcker
Prediction of Residual Power Peaks in Industrial Microgrids Using Artificial Neural Networks
The International Joint Conference on Neural Networks, IJCNN2017,  Anchorage, Alaska, USA, 2017

O. Wallscheid, W. Kirchgässner, J. Böcker
Investigation of Long Short-Term Memory Networks to Temperature Prediction for Permanent Magnet Synchronous Motors
The International Joint Conference on Neural Networks, IJCNN2017,  Anchorage, Alaska, USA, 2017

S. Bolte, L. Wohlrab, J.K. Afridi, N. Fröhleke, J. Böcker
Calorimetric  Measurement  of  Wide-Bandgap  Semiconductors Switching Losses
PCIM Europa, Nürnberg, Germany, 2017

L. Keuck, P. Hosemann, B. Strothmann, J. Böcker
A Comparative Study on Si-SJ-MOSFETs vs. GaN-HEMTs Used for LLC-Single-Stage Battery Charger
PCIM Europa, Nürnberg, Germany, 2017

M. Ott, A. Beckmann, J. Böcker
A Compensation Method for Production Tolerances in Electric Drive Systems Using an Extended Open-Loop Torque Control
European Battery, Hybrid & Fuel Cell Electric Vehicle Congress, Genf, Schweiz, 2017

K. Peter, F. Mink, J. Böcker
Model-Based Control Structure for High-Speed Permanent Magnet Synchronous Drives
IEEE Internatinal Electric Maschines & Drives Conference, Miami, Florida, USA, 2017

O. Wallscheid, J. Böcker
Fusion of Direct and Indirect Temperature Estimation Techniques for Permanent Magnet Synchronous Motors
IEEE Internatinal Electric Maschines & Drives Conference, Miami, Florida, USA, 2017

M. Ott, A. Gülec, J. Böcker
An Iterative Compensation Method for Production Tolerances in Electric Drive Systems
IEEE Internatinal Electric Maschines & Drives Conference, Miami, Florida, USA, 2017

2016

M. Hagemeyer, N. Fröhleke, K. Dora, J. Böcker
Development of a Flywheel Energy Storage-Based Welding System
IEEE Southern Power Electronics Conference, Auckland, New Zealand, 2016

C. Henkenius, N. Fröhleke, J. Böcker
Analysis and Design of Integrated Common and Differential Mode Inductors
38th IEEE International Telecommunications Energy Conference (INTELEC), Austin, Texas, USA, 2016

S. Bolte, N. Fröhleke, J. Böcker
Comparison of the Performance of Gallium Nitride (GaN) Transistors in a Totem-Pole Power Factor Controlled (PFC) Rectifier
38th IEEE International Telecommunications Energy Conference (INTELEC), Austin, Texas, USA, 2016

W. Peters, O. Wallscheid, J. Böcker
State-of-the-Art Permanent Magnet Synchronous Motor Control Methods in Automotive Traction Applications, Considering Thermal Influences (Tutorial)
18th European Conference on Power Electronics and Applications (EPE 2016), Karlsruhe, Germany, 2016

M. Ott, J. Böcker
Sensitivity Analysis on Production Tolerances for Electric Drive Systems in Automotive Application
18th European Conference on Power Electronics and Applications (EPE 2016), Karlsruhe, Germany, 2016

M. Leuer, J. Böcker, M. Lönneker
Model Predictive Control Strategy for Multi-Phase Thyristor Matrix Converters – Advantages, Problems and Solutions
18th European Conference on Power Electronics and Applications (EPE 2016), Karlsruhe, Germany, 2016

K.S. Stille, J. Böcker, R. Bettentrup, N. Fröhleke, I. Kaiser
Local Grid Load Coordination for Load-Shiftable Domestic Appliances in a Variable-Tariff Environment
18th European Conference on Power Electronics and Applications (EPE 2016), Karlsruhe, Germany, 2016

K. Peter, J. Böcker, S. Hanke, F. Mink
Inverter Loss Management for an Electrical High-Speed Drive System
18th European Conference on Power Electronics and Applications (EPE 2016), Karlsruhe, Germany, 2016

T. Vogt, J. Böcker, N. Fröhleke, R. Pahl
Determination of Storage Loss Characteristics with Reasonable Measurement and Calculation Effort
18th European Conference on Power Electronics and Applications (EPE 2016), Karlsruhe, Germany, 2016

S. Bolte, J. Böcker, N. Fröhleke
DC-DC Converter Design for Power Distribution Systems in Electric Vehicles using Calorimetric Loss Measurements
18th European Conference on Power Electronics and Applications (EPE 2016), Karlsruhe, Germany, 2016

O. Wallscheid, T. Huber, W. Peters, J. Böcker
A critical review of techniques to determine the magnet temperature of permanent magnet synchronous motors under real-time conditions
European Power Electronics and Drives, EPE Journal, 2016

K.S. Stille, J. Böcker, N. Fröhleke, R. Bettentrup, I. Kaiser
Supervisonal Load Optimization for Households with Intelligent Domestic Appliances
10th International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG), Bydgoszcz, Polen, 2016

J. Böcker
Some Reflections on Electromagnetic Force in Matter
International Symposium on Power Electronics, Electrical Drives, Automation and Motion, Capri, Italy, 2016

S. Bolte, N. Fröhleke, J. Böcker
Isolated On-Board DC-DC Converter for Power Distribution Systems in Electric Vehicles
International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM Europe 2016), Nürnberg, Germany

O. Wallscheid, U. Ammann, J. Böcker
Real-Time Captable Model Predictive Control of Permanent Magnet Synchronous Motors using Particle Swarm Optimisation
International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM Europe 2016), Nürnberg, Germany

L. Keuck, F. Almai, S. Bolte, N. Fröhleke, J. Böcker
Frequency- and Mode-Adaptive Control of DC-DC Converter for Efficiency Improvement
International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM Europe 2016), Nürnberg, Germany

Z. Cao, H. Fahnert, J. Schiele, S. Jintendra, N. Fröhleke, J. Böcker
System Concept and Model-based Optimization of High-Current Variable-Voltage Chopper-Rectifieres
International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM Europe 2016), Nürnberg, Germany

K.S. Stille, J. Böcker, N. Fröhleke, R. Bettentrup, I. Kaiser
Integration of home photovoltaic generation into electricity tariff for load optimization
4th International Istanbul Smart Grid Congress and Fair, 2016, Turkey

C. Schulte, M. Leuer, K. Peter, J. Böcker
Comparison of optimized pulse patterns with Direct Model Predictive Control using co-simulation
8th International Conference on Power Electronics, Machines and Drives 2016 (PEMD 2016), Glasgow, Schottland

L. Keuck, N. Fröhleke, J. Böcker
Single Stage Battery Charger based on LLC-type Resonant Converter
8th International Conference on Power Electronics, Machines and Drives 2016 (PEMD 2016), Glasgow, Schottland

K. Peter, J. Böcker, F. Mink, S. Beineke
Comparison of Quarter-Wave with Half-Wave Symmetrical Pulse Patterns Applied in Electrical High-Speed Drives
8th International Conference on Power Electronics, Machines and Drives 2016 (PEMD 2016), Glasgow, Schottland

M. Paradkar, J. Böcker
Analysis of eddy current losses in the windings of IPM machines for EV and HEV applications
8th International Conference on Power Electronics, Machines and Drives 2016 (PEMD 2016), Glasgow, Schottland

C. Henkenius, N. Fröhleke, J. Böcker
Numerical Optimization of Passive Line Filter Components for Supression of Electromagnetic Interference (EMI)
Applied Power Electronics Conference and Exhibiton 2016 (APEC 2016), Long Beach, USA

O. Wallscheid; J. Böcker
Global Identification of a Low-Order Lumped-Parameter Thermal Network for Permanent Magnet Synchronous Motors
IEEE Transaction on Energy Conversation, 2016

2015

J. Böcker, W. Peters, O. Wallscheid
State-of-the-Art Permanent Magnet Synchronous Motor Control Methods in Automotive Traction Applications Considering Thermal Influences
Tutorial at the Annual Conference of IEEE Industrial Electronics Society (IECON), Yokohama, Japan, 2015

S. Bolte, N. Fröhleke, J. Böcker
Efficiency Optimization for a Power Factor Correction (PFC) Rectifier with Gallium Nitride Transistor
3rd IEEE Workshop on Wide Bandgap Power Devices and Applications, Blacksburg, USA, 2015

M. Leuer, M. Lönneker, J. Böcker
Direct Model Predictive Control Strategy for Multi-Phase Thyristor Matrix Converters
IEEE 3rd International Symposium on Predictive Control of Electrical Drives and Power Electronics (PRECEDE  2015), Valparaíso, Chile, 2015

M. Paradkar, J. Böcker
3D Analytical Model for Estimation of Eddy Current Losses in the Magnets of IPM Machine Considering the Reaction Field of the Induced Eddy Currents
IEEE Energy Conference and Expo (ECCE), Montreal, Canada, 2015

K. Peter, J. Böcker
Operating Electrical High Speed Drives with Pulse Patterns of Specific Harmonic Content
IEEE Energy Conference and Expo (ECCE), Montreal, Canada, 2015

J. Solanki, N. Fröhleke, J. Böcker, G. Düppe, A. Averberg, P. Wallmeier
Voltage-Sequence-Control-Based High-Current Rectifier System
IEEE Transaction on Industry Applications, vol. 51, no. 5, pp. 3995-4005, Sept.-Oct., 2015

J. Böcker
Querschnittsprojekt Energieeffizienz in intelligenten technischen Systemen
Deutsche Unternehmensinitiative Energieeffizienz DENEFF, Bulletin Nr. 16, S. 34-35, Germany, 2015

S. Bolte, A. Speerschneider, N. Fröhleke, J. Böcker
A Comparison of On-Board Chargers for Electric Vehicles with Variable DC-Link Voltage
IEEE International Conference on Smart Energy Grid Engineering, Oshawa, Canada, 2015

W. Peters, O. Wallscheid, J. Böcker
Optimum Efficiency Control of Interior Permanent Magnet Synchronous Motors in Drive Trains of Electric and Hybrid Vehicles
IEEE 17th European Conference on Power Electronics and Applications, Geneva, Switzerland, 2015

O. Wallscheid, J. Böcker
Design and Identification of a Lumped-Parameter Thermal Network for Permanent Magnet Synchronous Motors Based on Heat Transfer Theory and Particle Swarm Optimisation
IEEE 17th European Conference on Power Electronics and Applications, Geneva, Switzerland, 2015

L. Keuck, N. Fröhleke, J. Böcker
PFC-Control for Improved Inductor Utilization
IEEE 17th European Conference on Power Electronics and Applications, Geneva, Switzerland, 2015

J. Solanki, N. Fröhleke, J. Böcker
Implementation of Hybrid Filter for 12-Pulse Thyristor Rectifier Supplying High-Current Variable-Voltage DC Load
IEEE Transaction on Industrial Electronics, vol.62, no.8, pp.4691-4701, Aug. 2015

O. Wallscheid, M. Meyer, J. Böcker
An Open-Loop Operation Strategy for Induction Motors Considering Iron Losses and Saturation Effects in Automotive Applications
IEEE International Conference on Power Electronics and Drive Systems (PEDS 2015), Sydney, Australien

T. Huber, W. Peters, J. Böcker
Voltage Controller for Flux Weakening Operation of Interior Permanent Magnet Synchronous Motor in Automotive Traction Applications
IEEE International Electric Machines and Drives Conference (IEMDC), 2015

M. Leuer, J. Böcker
Self-Optimized Model Predictive Direct Torque Control for Electrical Drives
24th IEEE International Syposium in Industrial Electronics (ISIE 2015), Rio de Janeiro, Brazil, 2015

J. Solanki, N. Fröhleke, J. Böcker, A. Averberg, P. Wallmeier
High-current variable-voltage rectifiers: state of the art topologies
IET Power Electronics, Vol. 8, No. 6, June 2015, pp. 1068-1080

M. Paradkar, J. Böcker
2D analytical model for estimation of eddy current loss in the magnets of IPM machines considering the reaction field of the induced eddy currents
IEEE International Electric Machines and Drives Conference (IEMDC), Coeur d’Alene, ID, USA, 2015

O. Wallscheid, J. Böcker
Design and Empirical Identification of a Lumped Parameter Thermal Network for Permanent Magnet Synchronous  Motors with Physically Motivated Constraints
IEEE International Electric Machines and Drives Conference (IEMDC), 2015

T. Vogt, N. Fröhleke, J. Böcker, S. Kempen
Mehrziel-Speicherbetriebsstrategie für industrielle Microgrids
ETG-Fachtagung „Von Smart Grids zu Smart Markets“, Kassel, Germany, 2015

C. Henkenius, N. Fröhleke, J. Böcker, H. Figge, T. Grote
DCM Detection for On-line Adaption of Control Parameters for Totem-Pole PFC Rectifier
International Conference on Industrial Technology 2015 Sevilla, Spain

J. Böcker, L. Keuck, W. Peters, O. Wallscheid
Herausforderung Elektromobilität – Erhöhung der Reichweite elektrisch angetriebener Fahrzeuge
Forschungsforum Paderborn, Wissenschaftsmagazin 18-2015, S. 6-13, Paderborn, Germany, 2015

M. Leuer, J. Böcker
Switching Strategy for Direct Model Predictive Control in Power Converter and Drive Applications with high Switching Frequency
International Conference on Automation, Robotics and Applications (iCARA), Queenstown, New Zealand, 2015

2014

T. Vogt, J. Böcker, S. Kempen
Die Rolle von Batteriespeichern in KMU-Microgrids
BWK – Das Energie-Fachmagazin – Springer VDI Verlag, Ausgabe 12-2014

K.S. Stille, J. Böcker, R. Bettentrup, I. Kaiser
Concept for a Hierarchical Load Control for Domestic Appliances in Smart Grids
International Conference on Advances in Green Energy (ICAGE), Trivandrum, Indien, 2014

T. Vogt, L. Keuck, N. Fröhleke, J. Böcker, S. Kempen
Analysis of Industrial Microgrid Power Curves Based on the Theory of Stochastic Variables for Control System Development and Component Sizing
International Conference on Advances in Green Energy (ICAGE), Trivandrum, Indien, 2014

L. Keuck, F. Hemmelgarn, N. Fröhleke, J. Böcker, M. Vohrmann, T. Jungblut, U. Rückert
Neuro Control of a PFC Rectifier for Harmonic Reduction at Partial Loads
International Conference on Advances in Green Energy (ICAGE), Trivandrum, Indien, 2014

M. Leuer, J. Böcker
Voltage Utilization in Model Predictive Control for IPMSM
IEEE International conference on Power Electronics, Drives and Energy Systems (PEDES), Mumbai, India, 2014

T. Vogt, N. Fröhleke, J. Böcker, S. Kempen
Design Considerations on Peak Power Clipping Thresholds in Microgrids
6th World Conference on Photovoltaic Energy Conversion (WCPEC), Kyoto, Japan, 2014

M. Hagemeyer, J. Solanki, N. Fröhleke, J. Böcker, A. Averberg, P. Wallmeier
Comparison of PWM AC Chopper Topologies
Annual Conference of IEEE Industrial Electronics Society (IECON), Dallas, USA, 2014

C. Schulte, J. Böcker
Co-Simulation of an Interior Permanent Magnet Synchronous Drive with Segmented Rotor Structure
Annual Conference of IEEE Industrial Electronics Society (IECON), Dallas, USA, 2014

O. Wallscheid, T. Huber, W. Peters, J. Böcker
Real-Time Capable Methods to Determine the Magnet Temperature of Permanent Magnet Synchronous Motors
Annual Conference of IEEE Industrial Electronics Society (IECON), Dallas, USA, 2014

J. Solanki, N. Fröhleke, J. Böcker, A. Averberg, P. Wallmeier
Voltage Sequence Control Based High-Current Rectifier System
IEEE ECCE, Pittsburg, USA, 2014

M. Leuer, A. Rüting, J. Böcker
Efficiency-Optimized Model Predictive Torque Control for IPMSM
IEEE Energycon, Dubrovnik, Croatia

T. Huber, W. Peters, J. Böcker
Monitoring Critical Temperatures in Permanent Magnet Synchronous Motors Using Low-Order Thermal Models
International Power Electronics Conference (IPEC Asia), Hiroshima, Japan, 2014

T. Vogt, A. Peters, N. Fröhleke, J. Böcker
Power profile based selection and operation optimization of parallel-connected power converter combinations
International Power Electronics Conference (IPEC Asia), Hiroshima, Japan, 2014

M. Leuer, J. Böcker
Real-Time Implementation of an Online Model Predictive Control for IPMSM Using Parallel Computing on FPGA
International Power Electronics Conference (IPEC Asia), Hiroshima, Japan, 2014

A. Specht, O. Wallscheid, J. Böcker
Determination of Rotor Temperature for an Interior Permanent Magnet Synchronous Machine Using a Precise Flux  Observer
International Power Electronics Conference (IPEC Asia), Hiroshima, Japan, 2014

2013

Z. Cao, J. Tao, N. Fröhleke, J. Böcker
Dynamical Modeling for Series-Parallel Resonant Converter under Optimized Modulation
28th Applied Power Electronics Conference and Exposition (APEC), Long Beach, California, USA, 2013

H. Figge, T. Grote, F. Schafmeister, N. Fröhleke, J. Böcker
Two-Phase Interleaving Configuration of the LLC Resonant Converter – Analysis and Experimental Evaluation
IEEE IECON, Vienna, Austria, 2013

L. Tong, M. Sun, J. Böcker, H. Zou
Low Latency Hybrid Hardware-in-the-Loop Simulator for Railway Traction System
9th IEEE Vehicle Power and Propulsion Conference(VPPC2013), Beijing, China, Oct 15-18, 2013

W. Peters, J. Böcker
Discrete-Time Design of Adaptive Current Controller for Interior Permanent Synchronous Motors (IPMSM) with High Magnetic Saturatuion
IEEE IECON, Vienna, Austria, 2013

O. Buchholz, J. Böcker
FPGA-Based Dynamically Reconfigurable Control of Induction Motor Drives
IEEE IECON, Vienna, Austria, 2013

J.Solanki, N. Fröhleke, J. Böcker
A Completely Modular Power Converter for High-Power High-Current DC Applications
IEEE IECON, Vienna, Austria, 2013

O. Wallscheid, J. Böcker
Wirkungsgradoptimale Arbeitspunktsteuerung für einen permanenterregten Synchronmotor mit vergrabenen Magneten unter Berücksichtigung von Temperatureinflüssen
Internationaler ETG Kongress, Berlin, Germany, 2013

S. Bolte, J. Baurichter, C. Henkenius, N. Fröhleke, J. Böcker, H. Figge
Verlustmodellierung und Effizienzoptimierung einer hart schaltenden, netzfreundlichen Pulsgleichrichterstufe (PFC)
Internationaler ETG Kongress, Berlin, Germany, 2013

L. Keuck, N. Fröhleke, J. Böcker
Formaler Regelungsentwurf für netzfreundliche PFC-Ladegleichrichter unter Anwendung eines Netzbeobachters
Internationaler ETG Kongress, Berlin, Germany, 2013

K. Peter, J. Böcker
Minimierung niederfrequenter Oberschwingungen in Pulsmustern für 2-Level Umrichter in Antriebssystemen mittels winkelmodulierter Partikel Schwarm Optimierung
Internationaler ETG Kongress, Berlin, Germany, 2013

DVMM Krishna, H. Preckwinkel, N. Fröhleke, J. Böcker
A Novel LC Resonant Based Partial Booster Scheme for Improved Efficiency and Reduced Cost of Transformerless Photovoltaic Inverters
PCIM Europe Conference, Nürnberg, Germany, 2013

H. Preckwinkel, A. Bünte, J. Böcker, N. Fröhleke, K. Dora
A Novel Low Cost Solar Central Inverters Topology With 99.2 % Efficiency
EPE-ECCE 2013, Lille, Frankreich, Sept. 2013

M. Lönneker, J. Böcker
A Novel Space Vector Modulation Strategy for Thyristor Matrix Converters
EPE-ECCE 2013, Lille, Frankreich, Sept. 2013

Stille, K.S., Romaus, C. and Böcker, J.
Online Capable Optimized Planning of Power Split in a Hybrid Energy Storage System
Eurocon 2013, pp. 1158-1163, Zagreb, Croatia

Gausemeier, J., Iwanek, P., Dorociak, R., Stille, K.S. and Böcker, J.
Konzipierung eines selbstoptimierenden hybriden Energiespeichersystems unter besonderer Berücksichtigung der Verlässlichkeit
Wissenschaftsforum Intelligente Technische Systeme, 9. Paderborner Workshop Entwurf mechatronischer Systeme, Germany, 2013

C. Romaus, D. Wimmelbücker, K.S. Stille, J. Böcker
Self-Optimization Energy Management Considering Stochastic Influences for a Hybrid Energy Storage of an Electric Road Vehicle
IEEE International Electric Machines and Drives Conference (IEMDC), Chicago, USA, 2013

A. Specht, S. Ober-Blöbaum, O. Wallscheid, C. Romaus, J. Böcker
Discrete-Time Model of an IPMSM Based on Variational Integrators
IEEE International Electric Machines and Drives Conference (IEMDC), Chicago, USA, 2013

C. Schulte, J. Böcker
Co-Simulation of an Electric Traction Drive
IEEE International Electric Machines and Drives Conference (IEMDC), Chicago, USA, 2013

M. Leuer, J. Böcker
Fast Online Model Predictive Control of IPMSM Using Parallel Computing on FPGA
IEEE International Electric Machines and Drives Conference (IEMDC), Chicago, USA, 2013

H. Sharabash, DVMM Krishna, N. Fröhleke, J. Böcker
High efficiency photovoltaic power conditioning system
PCIM Europe Conference, Nürnberg, Germany, 2013

J. Solanki, N. Fröhleke, J. Böcker, P. Wallmeier
Comparison of Thyristor-Rectifier with Hybrid Filter and Chopper-Rectifier for High-Power, High-Current Application
PCIM Europe Conference, Nürnberg, Germany, 2013

S. Mathapati, J. Böcker
Analytical and Offline Approach to Select Optimal Hysteresis Bands of DTC for PMSM
IEEE Transaction on Industrial Electronics, Vol. 60, No. 3, March 2013, pp. 885-895

J. Böcker, O. Buchholz
Can Oversampling Improve the Dynamics of PWM Controls?
IEEE International Conference on Industrial Technology (ICIT), 2013, Cape Town, South Africa

J. Solanki, N. Fröhleke, J. Böcker, P. Wallmeier
A Modular Multilevel Converter Based High-Power High-Current Power Supply
IEEE International Conference on Industrial Technology (ICIT), 2013, Cape Town, South Africa

DVMM Krishna, H. Preckwinkel, N. Fröhleke, J. Böcker
A Simplified Mathematical Model for DC-Balancing and Capacitor Ripple Reduction in 3-Level Inverters
IEEE International Conference on Industrial Technology (ICIT), 2013, Cape Town, South Africa

2012

S. Uebener, J. Böcker
Application of an e-machine emulator for power converter tests in the development of electric drives
European Electric Vehicle Congress, Brussels, Belgium, 2012

Z. Cao, J. Tao, N. Fröhleke, J. Böcker
Time-Domain Steady-State Modeling of Series-Parallel Resonant Converter under Optimized Modulation
IECON 2012. Montreal, Canada, 2012

W. Peters, O. Wallscheid, J. Böcker
A Precise Open Loop Torque Control for an Interior Permanent Magnet Synchronous Motor (IPMSM) considering Iron Losses
IECON 2012. Montreal, Canada, 2012

M. Paradkar, J. Böcker
Design of a High Performance Ferrite Magnet-Assisted Synchronous Reluctance Motor for an Electric Vehicle
IECON 2012. Montreal, Canada, 2012

J. Solanki, N. Fröhleke, J. Böcker, P. Wallmeier
Analysis, Design and Control of 1MW, High Power Factor and High Current Rectifier System
IEEE Energy Conversion Congress and Exposition (ECCE), Raleigh, USA, 2012

H. Figge, N. Fröhleke, J. Böcker, F. Schafmeister
Cost-Effective Implementation of a Digitally Controlled LLC Resonant Converter for Application in Server- and Telecom-PSUs
PCIM Europe Conference, Nürnberg, Germany, 2012

J. Tao, Z. Cao, M. Sun, N. Fröhleke, J. Böcker
Full Digital Implementation of an Optimized Modulation Strategy for Series-Parallel Resonant Converter
PCIM Europe Conference, Nürnberg, Germany, 2012

J. Böcker, M. Sun, Z. Cao, L. Tong, H. Zou, P. Ranjan
High Fidelity Hybrid Hardware-in-the-Loop Simulator with FPGA and Processor for AC Railway Traction
PCIM Europe Conference, Nürnberg, Germany, 2012

Z. Cao, F. H. Nzeugang, J. Tao, N. Fröhleke and J. Böcker
Novel Dynamical Modeling for Series-Parallel Resonant Converter
21th IEEE International Symposium on Industrial Electronics (ISIE2012), Huangzhou, China, 2012

O. Buchholz, S. Mathapati, J. Böcker
Boosting Dynamics of AC Machines by using FPGA-Based Controls
PCIM Europe Conference, Nürnberg, Germany, 2012

T. Grote, S. Bolte, N. Fröhleke, J. Böcker
Reduction of Total Harmonic Distortion (THD)for Interleaved Converters Operating in Discontinuous Conduction Mode (DCM)
PCIM Europe Conference, Nürnberg, Germany, 2012

2011

H. Preckwinkel, DVMM Krishna, N. Fröhleke, J. Böcker
Development of a Highly Efficient Photovoltaic Inverter of a Power Range of 100 to 500 kW
ETG Kongress 2011, Würzburg, Germany

H. Preckwinkel, DVMM Krishna, N. Fröhleke, J. Böcker
Photovoltaic Inverter with High Efficiency over a Wide Operation Area – A Practical Approach
IECON 2011 – 37th Annual Conference on IEEE Industrial Electronics Society

Böcker, J., Huber, T., Romaus, C., Specht, A. and Wallscheid, O.
Kluge Köpfe unter Strom: Elektro- und Informationstechnik an der Universität Paderborn
Ingenieurwissenschaften Deutschland – Zukunft & Faszination der Elektro- und Informationstechnik, pp. 274-281

W. Peters, O. Wallscheid, J. Böcker
Current Controller with Defined Dynamic Behavior for an Interior Permanent Magnet Synchronous Motor
IECON2011, Melbourne, Australia, 2011

J. Böcker, T. Huber, C. Romaus, A. Specht
Elektromobilität in Paderborn – Kerntechnologien für Automobile von morgen
ForschungsForum Paderborn Ausgabe 14-2011

A. Peters, C. Romaus, C. Henke, J. Böcker
Linearantriebstechnik mit inhärenter kontaktloser Energieübertragung
Haus der Technik: Fachtagung „Kontaktlose Energieübertragung“, Stuttgart, Germany, 2011

K. Flaßkamp, J. Böcker, S. Ober-Blöbaum, M. Ringkamp, T. Schneider, C. Schulte
Berechnung optimaler Stromprofile für einen 6-phasigen geschalteten Reluktanzantrieb
Wissenschaftsforum Intelligente Technische Systeme, Heinz Nixdorf Forum, Paderborn, Germany, 05/2011

H. Figge, T. Grote, N. Fröhleke, J. Böcker, F. Schafmeister
Overcurrent Protection for the LLC Resonant Converter with Improved Hold-Up Time
Applied Power Electronics Conference and Exposition (APEC), 2011 Twenty-Sixth Annual IEEE, pp.13-20, Fort Worth, USA, 03/2011

W. Peters, T. Huber, J. Böcker
Control Realization for an Interior Permanent Magnet Synchronous Motor (IPMSM) in Automotive Drive Trains
PCIM 2011, Nürnberg, Deutschland, April 2011

J. Lv, Z. Cao, N. Fröhleke, J. Böcker, H. Yuan, H. Mi,
Thermal-electrical modeling and simulation of resonantly operated DC-DC converters based on extended describing function method
Power Electronics and Applications (EPE 2011), Proceedings of the 2011-14th European Conference on‘, pp. 1-10, 2011

Z. Cao, F. H. Nzeugang, N. Fröhleke and J. Böcker,
A comparative study of series-parallel resonant converter by using different modulation strategies
’37th Annual Conference of the IEEE Industrial Electronics Society (IECON2011) ‚, Melbourne, Australia, 2011

T. Grote, F. Schafmeister, H. Figge, N. Fröhleke, J. Böcker
Digital Control Strategy for Multi-Phase Interleaved Boundary Mode and DCM Boost PFC Converters
IEEE Energy Conversion Congress and Expo (ECCE), Phoenix, USA, 2011

M. Hu, J. Böcker, N. Fröhleke,
Frequency / Duty Cycle Current-Mode Fuzzy Control for LCC Resonant Converter
EPE2011, Birmingham, UK. 2011,

M. Hu, J. Böcker, N. Fröhleke,
Multi-Objective Optimization of LCC Resonant Converter Applied iin VLF HV Generator
IECON2011, Melbourne, Australia. 2011