共中线开绕组拓扑三维空间矢量脉宽调制策略研究

作者：Wang Shun; Yang Shuying^*; Li Yi; Xie Zhen; Zhang Xing

来源：Proceedings of the CSEE, 2023, 43(3): 1163-1176.

DOI：10.13334/j.0258-8013.pcsee.212295

• linear modulation range
• open-end winding drive with common mode connected DC buses
• over-modulation strategy
• three-dimensional space-vector pulse-width modulation

Three-dimensional space-vector pulse-width modulation (3D-SVPWM) can be used to actively control the zero-sequence current (ZSC), therefore it is widely used in the open-end winding drive with single DC bus, open-end winding drive with common mode connected DC buses and three-phase four-leg inverter. ZSC control would enforce negative effects on the differential mode voltage (DMV) output. In order to make full use of the output capacity of the inverter, and to optimize the operation performance, it is necessary to study the modulation range and over-modulation strategies of the 3D-SVPWM. In this paper, its linear modulation range is analyzed in 3D space, resulting in quantitative description of the available index. Following that four typical 3D over-modulation schemes are proposed to further enhance the output voltage allowed. At last, the open-end winding drive with common mode connected DC buses is selected as an application case, and the effectiveness as well as the validity of the proposed schemes are analyzed and verified through experiments. ?2023 Chin.Soc.for Elec.Eng.

• 单位
  合肥工业大学