Open-Circuit Fault-Tolerant Characteristics of a New Four-Phase Doubly Salient Electro-Magnetic Generator

Liwei Shi, Bing Yan, Xiaoyu Zhou and Xueyi Zhang
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Liwei Shi: Electric Vehicle Intelligent Power Integration Technology National and Local Joint Engineering Research Center, Shandong University of Technology, Zibo 25049, Shandong, China
Bing Yan: Electric Vehicle Intelligent Power Integration Technology National and Local Joint Engineering Research Center, Shandong University of Technology, Zibo 25049, Shandong, China
Xiaoyu Zhou: Electric Vehicle Intelligent Power Integration Technology National and Local Joint Engineering Research Center, Shandong University of Technology, Zibo 25049, Shandong, China
Xueyi Zhang: Electric Vehicle Intelligent Power Integration Technology National and Local Joint Engineering Research Center, Shandong University of Technology, Zibo 25049, Shandong, China

Sustainability, 2018, vol. 10, issue 11, 1-16

Abstract: 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.

Keywords: fault-tolerant; doubly salient electro-magnetic generator; rectifier; characteristic (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2018
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