中文摘要：

在航空航天、机车以及核工业等工业应用中,如何使三相电机变频调速系统在缺相情况下继续运行,是衡量系统可靠性的一个重要指标。运用对称分量法,对三相异步电机缺相运行进行了详细的稳态分析,给出了电压方程和转矩方程,指出电机缺相运行带载能力大大降低以及采用传统Volts/Hz控制的可行性,并探讨了缺相情况下的矢量控制方案,最后给出了实验结果,验证了分析的正确性。

英文摘要：

In many industrial applications,such as aerospace,traction and nuclear industry,how to guarantee that the motor drive system can continue working even in default of one stator phase is one of the most important reliability indexes.The symmetrical-component method was used to analyze the steady-state operation of asynchronous motor in default of one stator phase.The voltage and torque equations were presented,pointed out the reduction of load capacity and feasibility of traditional Volts/Hz control,and then the vector control scheme under such fault condition was also investigated.At last,the experiments are carried out to verify the validity of the analysis.