@article{Zhang2025, 
author = {Qiang Zhang and Wenxiang Zhao and Tao Tao and Zongwang Li},
title = {Suppressing Dual Zero-sequence Current in Dual Three-phase Open-winding PMSM Using Multi-zero-vectors Hysteresis Control},
year = {2025},
journal = {Chinese Journal of Electrical Engineering},
volume = {11},
number = {3},
pages = {167-177},
keywords = {Dual three-phase open-winding permanent magnet synchronous motor, zero-sequence current, hysteresis controller, zero-vector combinations},
url = {https://www.sciopen.com/article/10.23919/CJEE.2024.000083},
doi = {10.23919/CJEE.2024.000083},
abstract = {In a dual three-phase open-winding permanent magnet synchronous motor (DTP-OW-PMSM) system sharing a common DC bus, dual zero-sequence current (ZSC) loops are inherent, leading to increased inverter capacity usage, losses, and degraded operational performance. To mitigate ZSC, the dual zero-sequence equivalent circuit of the DTP-OW-PMSM system is established, and zero-vector combinations with significant zero-sequence voltage amplitudes are employed. Since the two sets of ZSC loops are independent, four zero-vector combinations can be determined. A ZSC suppression strategy utilizing hysteresis controllers is proposed. Compared with the PI controller, hysteresis controllers offer wider bandwidth and simplify control parameter tuning. Additionally, 180-degree decoupling streamlines vector selection for multiphase open-winding topologies. Furthermore, the modulation range of the proposed strategy is investigated. Finally, experiment in a direct-drive motor is implemented, and experimental results confirming its effectiveness.}
}