Browse > Article
http://dx.doi.org/10.6113/TKPE.2021.26.2.135

Performance Comparison of Common-Mode Voltage Reduction PWM Methods in Terms of Modulation Index  

Heo, Geon (Graduate School of Energy Convergence, Gwangju Institute of Science and Technology)
Park, Yongsoon (Graduate School of Energy Convergence, Gwangju Institute of Science and Technology)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.26, no.2, 2021 , pp. 135-140 More about this Journal
Abstract
This study introduces a new pulse width modulation (PWM) method to reduce common-mode voltages (CMVs) and then compares its performance with other reduced CMV-PWM (RCMV-PWM) methods. CMVs should be reduced to ensure the electromagnetic compatibility and safety of grid-connected inverters. RCMV-PWM methods attempt to synthesize voltage references without zero vectors, which cause high CMV peaks. In these methods, the peak-to-peak magnitude of CMVs can be reduced by one-third of the conventional space-vector PWM. The introduced method splits every reference vector into two vectors to avoid the use of zero vectors. The performances of the RCMV-PWM methods are analyzed in accordance with the modulation index through simulation and experiment.
Keywords
Grid-connected inverter; CMV (Common-Mode Voltage); PWM (Pulse Width Modulation);
Citations & Related Records
연도 인용수 순위
  • Reference
1 R. Araneo, S. Lammens, M. Grossi, and S. Bertone, "EMC issues in high-power grid-connected photovoltaic plants," IEEE Transactions on Electromagnetic Compatibility, Vol. 51, No. 3, pp. 639-648, Aug. 2009.   DOI
2 T. Kerekes, R. Teodorescu, M. Liserre, C. Klumpner, and M. Sumner, "Evaluation of three-phase transformerless photovoltaic inverter topologies," IEEE Transactions on Power Electronics, Vol. 24, No. 9, pp. 2202-2211, Sep. 2009.   DOI
3 A. Muetze and C. R. Sullivan, "Simplified design of common-mode chokes for reduction of motor ground currents in inverter drives," IEEE Transactions on Industry Applications, Vol. 47, No. 6, pp. 2570-2577, Nov./Dec. 2011.   DOI
4 Y. C. Son and S. K. Sul, "Generalization of active filters for EMI reduction and harmonics compensation," IEEE Transactions on Industry Applications, Vol. 42, No. 2, pp. 545-551, Mar./Apr. 2006.   DOI
5 Y. S. Lai and F. S. Shyu, "Optimal common-mode voltage reduction PWM technique for inverter control with consideration of the dead-time effects-Part I: Basic development," IEEE Transactions on Industry Applications, Vol. 40, No. 6, pp. 1605-1612, Nov./Dec. 2004.   DOI
6 E. Un and A. M. Hava, "A near state PWM method with reduced switching frequency and reduced common mode voltage for three-phase voltage source inverters," IEEE Transactions on Industry Applications, Vol. 45, No. 2, pp. 782-793, Mar./Apr. 2009.   DOI
7 C. Hou, C. Shih, P. Cheng, and A. M. Hava, "Common-mode voltage reduction pulsewidth modulation techniques for three-phase grid-connected converters," IEEE Transactions on Power Electronics, Vol. 28, No. 4, pp. 1971-1979, Apr. 2013.
8 Y. Park and S. Sul, "A novel method utilizing trapezoidal voltage to compensate for inverter nonlinearity," IEEE Transactions on Power Electronics, Vol. 27, No. 12, pp. 4837-4846, Dec. 2012.   DOI