Control of five-phase induction motor under open-circuit phase fault fed by fault tolerant VSI
Control of five-phase induction motor under open-circuit phase fault fed by fault tolerant VSI
复制标题
DOI：
10.1109/demped.2015.7303710
复制
发表时间：
2015-10
期刊：
影响因子：
--
通讯作者：
M. Masoud;S. Dabour;Abd El-wahab Hassan;E. Rashad
中科院分区：
文献类型：
--
作者：
M. Masoud;S. Dabour;Abd El-wahab Hassan;E. Rashad
五相感应电动机驱动系统由于其与三相感应电动机相比所具有的众多优点而越来越受欢迎。原则上，五相驱动系统的电源由五相电压源逆变器（VSI）提供。本文提出了一种五相电压型逆变器的容错控制策略。传统的五相逆变器仅由五个桥臂组成。所提出的策略迫使故障相通过插入晶闸管的额外直流母线中点连接到直流链路的中点。建议的逆变器提供容限的开关器件的短路和开路故障。故障后的性能以及正常的故障前的操作进行了讨论。利用五相感应电机的矢量控制验证了逆变器的容错性。完整的控制方案是在实时使用数字信号处理器（DS1104）的原型1.5马力电机。实验结果验证了所提出的控制方案。
Five-phase induction motor drive systems have gained much popularity due to the numerous advantages that they offer when compared to their three-phase counterparts. In principle, the supply to five-phase drive system is given from five-phase voltage source inverter (VSI). In this paper, a fault-tolerant control strategy for five-phase VSIs has been suggested. The conventional five-phase inverter consists of only five legs. The proposed strategy forces the faulty phase to connect to the midpoint of the DC-link via the additional dc-bus midpoint inserting Thyristors. The proposed inverter provides tolerance to both short-circuit and open-circuit faults of the switching devices. The performances of the post-fault as well as the normal pre-fault operation are discussed. The fault tolerance of the inverter is verified using vector control of a five-phase induction motor. The complete control scheme is implemented in real-time using digital signal processor (DS1104) for a prototype 1.5 hp motor. Experimental results of the proposed drive verify the proposed control scheme.