A New Method for Elimination of Zero-Sequence Voltage in Dual Three-Level Inverter Fed Open-End Winding Induction Motors

Due to the excessive zero-sequence voltage in dual three-level inverter fed open-end winding induction motor systems, zerosequence circumfluence which is harmful to switching devices and insulation is then formed when operating in a single DC voltage source supplying mode. Traditionally, it is the mean value instead of instantaneous value of the zero-sequence voltage that is eliminated, through adjusting the durations of the operating vectors. A new strategy is proposed for zero-sequence voltage elimination, which utilizes unified voltage modulation and a decoupled SVPWM strategy to achieve two same-sized equivalent vectors for an angle of 120°, generated by two inverters independently. Both simulation and experimental results have verified its efficiency in the instantaneous value elimination of zero-sequence voltage.

Statistics

Show / Hide Statistics

Cumulative Counts from September 30th, 2019
Multiple requests among the same browser session are counted as one view. If you mouse over a chart, the values of data points will be shown.

Cite this article

[IEEE Style]

Y. Geng, C. Wei, R. Chen, L. Wang, J. Xu, S. Hao, "A New Method for Elimination of Zero-Sequence Voltage in Dual Three-Level Inverter Fed Open-End Winding Induction Motors," Journal of Power Electronics, vol. 17, no. 1, pp. 67-75, 2017. DOI: 10.6113/JPE.2019.17.1.67.

[ACM Style]

Yi-Wen Geng, Chen-Xi Wei, Rui-Cheng Chen, Liang Wang, Jia-Bin Xu, and Shuang-Cheng Hao. 2017. A New Method for Elimination of Zero-Sequence Voltage in Dual Three-Level Inverter Fed Open-End Winding Induction Motors. Journal of Power Electronics, 17, 1, (2017), 67-75. DOI: 10.6113/JPE.2019.17.1.67.