标题：Open-Circuit Fault-Tolerant Characteristics of a New Four-Phase Doubly Salient Electro-Magnetic Generator
作者：Shi, Liwei; Yan, Bing; Zhou, Xiaoyu; Zhang, Xueyi
作者机构：[Shi, Liwei; Yan, Bing; Zhou, Xiaoyu; Zhang, Xueyi] Shandong Univ Technol, Elect Vehicle Intelligent Power Integrat Technol, Zibo 25049, Shandong, Peo 更多
通讯作者地址：[Shi, LW]Shandong Univ Technol, Elect Vehicle Intelligent Power Integrat Technol, Zibo 25049, Shandong, Peoples R China.
关键词：fault-tolerant; doubly salient electro-magnetic generator; rectifier;; characteristic
摘要：In order to improve the reliability of a more sustainable mobility generator, a four-phase Doubly Salient Electro-Magnetic Generator (DSEG) and its phase-isolated rectifier are proposed in this paper. The mathematical model of the machine and fault-tolerant rectifiers is proposed, which indicates that the four-phase fault-tolerant DSEG should have symmetric phases. With the asymmetry analysis of the traditional 8/6-pole DSEG, a new 12/9-pole DSEG with symmetric phases is proposed. The four-phase full bridge rectifier, positive half-wave rectifier and four-phase H bridge rectifier are presented. The voltage waveforms, no-load characteristics and loading characteristics with different rectifiers will be given based on the simulation and the experiment on a prototype of DSEG, and the results show that the four-phase H bridge rectifier has the best fault tolerant no-load characteristic and external characteristic, except that it needs more diodes.