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307 Publications


2013 | Conference Paper | LibreCat-ID: 30556
High efficiency photovoltaic power conditioning system
H. Sharabash, D.V.M.M. Krishna, N. Fröhleke, J. Böcker, in: PCIM Europe Conference, Nürnberg, Germany, 2013.
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2013 | Conference Paper | LibreCat-ID: 30553
Can oversampling improve the dynamics of PWM controls?
J. Böcker, O. Buchholz, in: 2013 IEEE International Conference on Industrial Technology (ICIT), IEEE, 2013.
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2013 | Conference Paper | LibreCat-ID: 30571
Dynamical modeling for series-parallel resonant converter under optimized modulation
Z. Cao, J. Tao, N. Fröhleke, J. Böcker, in: 2013 Twenty-Eighth Annual IEEE Applied Power Electronics Conference and Exposition (APEC), IEEE, 2013.
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2013 | Conference Paper | LibreCat-ID: 30551
A simplified mathematical model for DC-balancing and capacitor ripple reduction in 3-level inverters
D.V.M.M. Krishna, N. Fröhleke, J. Böcker, H. Preckwinkel, in: 2013 IEEE International Conference on Industrial Technology (ICIT), IEEE, 2013.
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2013 | Conference Paper | LibreCat-ID: 30561
A novel low cost solar central inverters topology with 99.2% efficiency
H. Preckwinkel, A. Bünte, J. Böcker, N. Fröhleke, K. Dora, in: 2013 15th European Conference on Power Electronics and Applications (EPE), IEEE, 2013.
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2013 | Conference Paper | LibreCat-ID: 30552
A modular multilevel converter based high-power high-current power supply
J. Solanki, N. Fröhleke, J. Böcker, P. Wallmeier, in: 2013 IEEE International Conference on Industrial Technology (ICIT), IEEE, 2013.
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2013 | Conference Paper | LibreCat-ID: 30560
A novel space vector modulation strategy for thyristor matrix converters
M. Lönneker, J. Böcker, in: 2013 15th European Conference on Power Electronics and Applications (EPE), IEEE, 2013.
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2012 | Conference Paper | LibreCat-ID: 29600
A precise open-loop torque control for an interior permanent magnet synchronous motor (IPMSM) considering iron losses
W. Peters, O. Wallscheid, J. Böcker, in: IECON 2012-38th Annual Conference on IEEE Industrial Electronics Society, 2012, pp. 2877–2882.
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2012 | Conference Paper | LibreCat-ID: 30325
Cost-Effective Implementation of a Digitally Controlled LLC Resonant Converter for Application in Server- and Telecom-PSUs
H. Figge, N. Fröhleke, J. Böcker, F. Schafmeister, in: Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM), IEEE, Nuremberg, Germany, 2012, pp. 1–8.
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2012 | Conference Paper | LibreCat-ID: 30543
Novel dynamical modeling for series-parallel resonant converter
Z. Cao, F.H. Nzeugang, J. Tao, N. Fröhleke, J. Böcker, in: 21th IEEE International Symposium on Industrial Electronics (ISIE2012), Huangzhou, China, 2012.
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2012 | Conference Paper | LibreCat-ID: 30540
Reduction of Total Harmonic Distortion (THD)for Interleaved Converters Operating in Discontinuous Conduction Mode (DCM)
T. Grote, S. Bolte, N. Fröhleke, J. Böcker, in: PCIM Europe Conference, Nürnberg, Germany, 2012, 2012.
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2012 | Conference Paper | LibreCat-ID: 30544
High Fidelity Hybrid Hardware-in-the-Loop Simulator with FPGA and Processor for AC Railway Traction
J. Böcker, M. Sun, Z. Cao, L. Tong, H. Zou, P. Ranjan, in: PCIM Europe Conference, Nürnberg, Germany, 2012.
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2012 | Conference Paper | LibreCat-ID: 30545
Full Digital Implementation of an Optimized Modulation Strategy for Series-Parallel Resonant Converter
J. Tao, Z. Cao, M. Sun, N. Fröhleke, J. Böcker, in: PCIM Europe Conference, Nürnberg, Germany, 2012.
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2012 | Conference Paper | LibreCat-ID: 30541
Boosting Dynamics of AC Machines by using FPGA-Based Controls
O. Buchholz, S. Mathapati, J. Böcker, in: PCIM Europe Conference, Nürnberg, Germany, 2012.
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2012 | Journal Article | LibreCat-ID: 30554
Analytical and Offline Approach to Select Optimal Hysteresis Bands of DTC for PMSM
S. Mathapati, J. Böcker, IEEE Transactions on Industrial Electronics 60 (2012) 885–895.
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2012 | Conference Paper | LibreCat-ID: 30538
Photovoltaic inverter with high efficiency over a wide operation area - a practical approach
H. Preckwinkel, D. Krishna, N. Fröhleke, J. Böcker, in: IECON 2011 - 37th Annual Conference of the IEEE Industrial Electronics Society, IEEE, 2012.
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2012 | Conference Paper | LibreCat-ID: 30550
Time-domain steady-state modeling of series-parallel resonant converter under optimized modulation
Z. Cao, J. Tao, N. Fröhleke, J. Böcker, in: IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society, IEEE, 2012.
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2012 | Conference Paper | LibreCat-ID: 30531
Multi-objective optimization of LCC resonant converter applied in VLF HV generator
M. Hu, N. Fröhleke, W. Peters, J. Böcker, in: IECON 2011 - 37th Annual Conference of the IEEE Industrial Electronics Society, IEEE, 2012.
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2012 | Conference Paper | LibreCat-ID: 30533
A comparative study of series-parallel resonant converter by using different modulation strategies
Z. Cao, F.H. Nzeugang, N. Fröhleke, J. Böcker, in: IECON 2011 - 37th Annual Conference of the IEEE Industrial Electronics Society, IEEE, 2012.
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2012 | Conference Paper | LibreCat-ID: 30547
Analysis, design and control of 1MW, high power factor and high current rectifier system
J. Solanki, N. Fröhleke, J. Böcker, P. Wallmeier, in: 2012 IEEE Energy Conversion Congress and Exposition (ECCE), IEEE, 2012.
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2011 | Journal Article | LibreCat-ID: 29609
Optimierte Regelung für mobile Elektromotoren
O. Wallscheid, W. Peters, J. Böcker, Aktuelle Technik 5 (2011) 30–33.
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2011 | Conference Paper | LibreCat-ID: 29601
Current controller with defined dynamic behavior for an interior permanent magnet synchronous motor
W. Peters, O. Wallscheid, J. Böcker, in: IECON 2011-37th Annual Conference of the IEEE Industrial Electronics Society, 2011, pp. 534–538.
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2011 | Conference Paper | LibreCat-ID: 30323
Digital Control Strategy for Multi-Phase Interleaved Boundary Mode and DCM Boost PFC Converters
T. Grote, H. Figge, N. Fröhleke, J. Böcker, F. Schafmeister, in: Proc. IEEE Energy Conversion Congress and Exposition (ECCE), IEEE, Phoenix, AZ, USA, 2011, pp. 3186–3192.
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2011 | Conference Paper | LibreCat-ID: 30322
Overcurrent Protection for the LLC Resonant Converter with Improved Hold-Up Time
H. Figge, T. Grote, N. Fröhleke, J. Böcker, F. Schafmeister, in: Proc. 26th IEEE Applied Power Electronics Conference (APEC), IEEE, Fort Worth, TX, USA, 2011, pp. 13–20.
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2011 | Conference Paper | LibreCat-ID: 30534
Thermal-electrical modeling and simulation of resonantly operated DC-DC converters based on extended describing function method
J. Lv, Z. Cao, N. Fröhleke, J. Böcker, H. Yuan, H. Mi, in: Proceedings of the 2011 14th European Conference on Power Electronics and Applications, 2011.
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2011 | Conference Paper | LibreCat-ID: 30535
Control Realization for an Interior Permanent Magnet Synchronous Motor (IPMSM) in Automotive Drive Trains
W. Peters, T. Huber, J. Böcker, in: PCIM 2011, Nürnberg, Deutschland, 2011.
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2011 | Conference Paper | LibreCat-ID: 30532
Frequency / duty cycle current-mode fuzzy control for LCC resonant converter
M. Hu, J. Böcker, N. Fröhleke, in: EPE2011, Birmingham, UK, 2011.
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2010 | Conference Paper | LibreCat-ID: 30516
FPGA-based realization of self-optimizing drive-controllers
C. Paiz, J. Hagemeyer, C. Pohl, M. Porrmann, U. Rückert, B. Schulz, W. Peters, J. Böcker, in: 2009 35th Annual Conference of IEEE Industrial Electronics, IEEE, 2010.
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2010 | Conference Paper | LibreCat-ID: 30523
Optimal energy management for a hybrid energy storage system for electric vehicles based on Stochastic Dynamic Programming
C. Romaus, K. Gathmann, J. Böcker, in: 2010 IEEE Vehicle Power and Propulsion Conference, IEEE, 2010.
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2010 | Conference Paper | LibreCat-ID: 30524
Efficiency improvement of an IPMSM using Maximum Efficiency operating strategy
D. Pohlenz, J. Böcker, in: Proceedings of 14th International Power Electronics and Motion Control Conference EPE-PEMC 2010, IEEE, 2010.
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2010 | Conference Paper | LibreCat-ID: 30525
Observer for the rotor temperature of IPMSM
A. Specht, J. Böcker, in: Proceedings of 14th International Power Electronics and Motion Control Conference EPE-PEMC 2010, IEEE, 2010.
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2010 | Conference Paper | LibreCat-ID: 30526
Energy transfer with doubly-excited switched reluctance drive
T. Schneider, C. Schulte, S. Mathapati, J. Böcker, in: SPEEDAM 2010, IEEE, 2010.
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2010 | Conference Paper | LibreCat-ID: 30521
Modeling and Control Design for a Very Low-Frequency High-Voltage Test System
Z. Cao, M. Hu, N. Fröhleke, J. Böcker, in: IEEE TRANSACTIONS ON POWER ELECTRONICS 25(2), 2010.
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2010 | Journal Article | LibreCat-ID: 43503
Elektromobilität — ein aktuelles Forschungsfeld insbesondere der Regelungstechnik
C. Kröger, J. Böcker, K. Neiß, at - Automatisierungstechnik 58 (2010) 542–545.
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2010 | Journal Article | LibreCat-ID: 43502
Regelung elektrischer Traktionsantriebe in Elektro- und Hybridfahrzeugen
J. Böcker, T. Huber, W. Peters, D. Pohlenz, A. Specht, at - Automatisierungstechnik 58 (2010) 599–608.
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2009 | Conference Paper | LibreCat-ID: 30319
Semi-Digital Interleaved PFC Control with Optimized Light Load Efficiency
T. Grote, Fh. Figge, N. Fröhleke, W. Beulen, F. Schafmeister, P. Ide, J. Böcker, in: Proc. 24th IEEE Applied Power Electronics Conference (APEC), IEEE, Washington D.C., USA, 2009, pp. 1722–1727.
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2009 | Conference Paper | LibreCat-ID: 30320
Adaptive Digital Slope Compensation for Peak Current Mode Control
T. Grote, F. Schafmeister, H. Figge, N. Fröhleke, P. Ide, J. Böcker, in: Proc. IEEE Energy Conversion Congress and Exposition (ECCE), IEEE, San Jose, CA, USA, 2009, pp. 3523–3529.
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2009 | Conference Paper | LibreCat-ID: 30502
Energy transfer via linear doubly-fed motor in different operating modes
T. Schneider, B. Schulz, C. Henke, K. Witting, D. Steenken, J. Böcker, in: 2009 IEEE International Electric Machines and Drives Conference, IEEE, 2009.
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2009 | Conference Paper | LibreCat-ID: 30515
Optimal energy management for a hybrid energy storage system combining batteries and double layer capacitors
C. Romaus, J. Böcker, K. Witting, A. Seifried, O. Znamenshchykov, in: 2009 IEEE Energy Conversion Congress and Exposition, IEEE, 2009.
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2009 | Conference Paper | LibreCat-ID: 30513
Small-Signal Model and Control Design of LCC Resonant Converter with a Capacitive Load Applied in Very Low Frequency High Voltage Test System
M. Hu, N. Fröhleke, J. Böcker, in: IEEE Energy Conversion Congress and Expo (ECCE), San Jose, USA, 2009, 2009.
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2009 | Conference Paper | LibreCat-ID: 30507
Control Design for a Very Low-Frequency High-Voltage Test System
Z. Cao, N. Fröhleke, J. Böcker, in: 13th European Conference on Power Electronics and Applications (EPE2009), Barcelona, Spain, 2009.
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2009 | Conference Paper | LibreCat-ID: 30504
Regular-sampled current measurement in AC drives using delta-sigma modulators
W. Peters, B. Schulz, S. Mathapati, J. Böcker, in: 13th European Conference on Power Electronics and Applications, Barcelona, Spain , 2009.
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2009 | Conference Paper | LibreCat-ID: 30514
Frequency / duty cycle control of LCC resonant converter supplying high voltage very low frequency test systems
M. Hu, N. Fröhleke, J. Böcker, in: 13th European Conference on Power Electronics and Applications (EPE2009), Barcelona, Spain, 2009.
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2009 | Conference Paper | LibreCat-ID: 30509
Converter and control design for very low-frequency high-voltage test systems
Z. Cao, N. Fröhleke, J. Böcker, in: IEEE Energy Conversion Congress and Expo (ECCE), San Jose, USA, 2009.
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2009 | Conference Paper | LibreCat-ID: 30505
Design of a Resonant Converter for Very Low-Frequency High-Voltage Test Systems
Z. Cao, N. Fröhleke, J. Böcker, in: Proc. of the PCIM China Conference, Shanghai, 2009, 2009.
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2009 | Conference Paper | LibreCat-ID: 30517
Adaptive digital slope compensation for peak current mode control
T. Grote, F. Schafmeister, H. Figge, N. Fröhleke, P. Ide, J. Böcker, in: 2009 IEEE Energy Conversion Congress and Exposition, IEEE, 2009.
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2009 | Conference Paper | LibreCat-ID: 30488
Investigation of Power Supplies for a Piezoelectric Brake Actuator in Aircrafts
R. Li, N. Fröhleke, H. Wetzel, J. Böcker, in: 2006 CES/IEEE 5th International Power Electronics and Motion Control Conference, IEEE, 2009.
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2009 | Conference Paper | LibreCat-ID: 30518
On the control bandwidth of servo drives
J. Böcker, S. Beineke, A. Bähr, in: 13th European Conference on Power Electronics and Applications (EPE2009), Barcelona, Spain, 2009.
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2008 | Conference Paper | LibreCat-ID: 30458
Control of permanent magnet synchronous motor with dual-mode position estimation
J. Böcker, C. Kröger, in: 2005 European Conference on Power Electronics and Applications, IEEE, 2008.
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2008 | Conference Paper | LibreCat-ID: 30448
Optimized size design of integrated magnetic components using area product approach
H. Nijende, N. Fröhleke, J. Böcker, in: 2005 European Conference on Power Electronics and Applications, IEEE, 2008.
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