Torque regulation of multiphase induction motors under symmetrical fault condition

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• 作者：Xiaoqin Zheng and Dong Wang
• 刊名：IEEJ Transactions on Electrical and Electronic Engineering
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：12
• 期：2
• 页码：284-291
• 全文大小：1077K
• ISSN：1931-4981

文摘

Multiphase induction motors are popular for electric ship propulsion systems because of their superior fault-tolerant capability. In this paper, a torque regulation method for multiphase induction motors with symmetrical fault is investigated under the precondition of constant current amplitude. On the basis of parameter recalculation, the relationships between the torque, input voltage magnitude, and frequency are analyzed by using the equivalent circuit. The maximum torque and the corresponding input voltage magnitude and frequency are predicted. Finally, the developed torque regulation method is validated by experimental test on a 45-kW prototype 15-phase induction machine under a symmetrical 5-phase open-circuit condition.