A Novel LC Resonant Based Partial Booster Scheme for Improved Efficiency and Reduced Cost of Transformerless Photovoltaic Inverters
D.V.M.M. Krishna, H. Preckwinkel, N. Fröhleke, J. Böcker, in: PCIM Europe Conference, Nürnberg, Germany, 2013.
LibreCat: /record/30562

Verlustmodellierung und Effizienzoptimierung einer hart schaltenden, netzfreundlichen Pulsgleichrichterstufe (PFC)
S. Bolte, J. Baurichter, C. Henkenius, N. Fröhleke, J. Böcker, H. Figge, in: Internationaler ETG Kongress, Berlin, Germany, 2013.
LibreCat: /record/30565

Minimierung niederfrequenter Oberschwingungen in Pulsmustern für 2-Level Umrichter in Antriebssystemen mittels winkelmodulierter Partikel Schwarm Optimierung
K. Peter, J. Böcker, in: Internationaler ETG Kongress, Berlin, Germany, 2013.
LibreCat: /record/30563

Formaler Regelungsentwurf für netzfreundliche PFC-Ladegleichrichter unter Anwendung eines Netzbeobachters
L. Keuck, N. Fröhleke, J. Böcker, in: Internationaler ETG Kongress, Berlin, Germany, 2013.
LibreCat: /record/30564

High efficiency photovoltaic power conditioning system
H. Sharabash, D.V.M.M. Krishna, N. Fröhleke, J. Böcker, in: PCIM Europe Conference, Nürnberg, Germany, 2013.
LibreCat: /record/30556

Can oversampling improve the dynamics of PWM controls?
J. Böcker, O. Buchholz, in: 2013 IEEE International Conference on Industrial Technology (ICIT), IEEE, 2013.
LibreCat: /record/30553
DOI: 10.1109/icit.2013.6505952

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.
LibreCat: /record/30571
DOI: 10.1109/apec.2013.6520481

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.
LibreCat: /record/30551
DOI: 10.1109/icit.2013.6505715

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.
LibreCat: /record/30561
DOI: 10.1109/epe.2013.6631769

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.
LibreCat: /record/30552
DOI: 10.1109/icit.2013.6505713

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.
LibreCat: /record/30560
DOI: 10.1109/epe.2013.6631954

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.
LibreCat: /record/29600

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.
LibreCat: /record/30325

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 (IS), Huangzhou, China, 2012.
LibreCat: /record/30543
DOI: 10.1109/ISIE.2012.6237122

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.
LibreCat: /record/30540

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.
LibreCat: /record/30544

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.
LibreCat: /record/30545

Boosting Dynamics of AC Machines by using FPGA-Based Controls
O. Buchholz, S. Mathapati, J. Böcker, in: PCIM Europe Conference, Nürnberg, Germany, 2012.
LibreCat: /record/30541

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.
LibreCat: /record/30554
DOI: 10.1109/tie.2012.2189530

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.
LibreCat: /record/30538
DOI: 10.1109/iecon.2011.6119432