基于MSC的五相感应电机缺两相容错控制

摘要/Abstract

摘要： 为了使五相感应电机在发生多相缺相故障时仍能平稳运行,提出一种基于对称分量法(Method of Symmetrical Components,MSC)的脉动转矩最小的容错电流优化控制策略。利用MSC对五相感应电机缺两相容错运行时的电流,磁势进行对比,得到转矩脉动最小时的最优容错电流,并对计算结果进行仿真分析,得到缺两相容错运行的电流,磁势结果。仿真结果表明,基于MSC计算出的容错电流可实现对五相感应电机缺两相运行时的容错控制,仿真结果与计算结果相符。

关键词: 感应电机, 对称分量法, 容错控制

Abstract: In order to make the five-phase induction motor run smoothly in the event of multiphase failure, a fault-tolerant current optimization control strategy based on the method of symmetrical components (MSC) was proposed, which minimized ripple torque and copper loss. In this paper, MSC was used to compare the current, magnetic potential and copper loss of five-phase induction motor in two-phase fault-tolerant operation, and the optimal fault-tolerant current with the smallest torque ripple and copper loss were obtained. The simulation results were analyzed and the comparison results of current, magnetic potential and copper loss in two-phase fault-tolerant operation and fault-tolerant operation were obtained. The simulation results showed that the fault-tolerant current calculated based on MSC could realize the fault-tolerant control of five-phase induction motor in the absence of two phases, and the simulation results were consistent with the calculated results.

Key words: induction motor, method of symmetric component (MSC), fault tolerant control

中图分类号:

TM346

周银萍, 赵镜红, 程海军, 马远征. 基于MSC的五相感应电机缺两相容错控制[J]. 微特电机, 2021, 49(2): 39-42.

ZHOU Yin-ping, ZHAO Jing-hong, CHENG Hai-jun, MA Yuan-zheng. Fault-Tolerant Control of Five-Phase Induction Motor Without Two Phases Based on MSC[J]. Small & Special Electrical Machines, 2021, 49(2): 39-42.

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