摘要
针对无刷直流电动机逆变器功率管短路及开路故障,文中采用小波变换对电机转速信号进行时间-频率域分析,并结合傅里叶变换进行对比研究。仿真结果表明小波变换能有效地实现逆变器的故障检测。
Aimed at the short-circuit and open-circuit fault of transistors in the inverter of Brushless direct current motor, this paper used wavelet transform to analyze the signal of the running speed of the motor in the time-frequency domain, and combined with fourier transform to carry out comparative study. The simulation results show that wavelet transform can effectively achieve the fault detection of inverter.
出处
《微电机》
北大核心
2010年第1期74-77,共4页
Micromotors
基金
甘肃省自然科学基金项目(3ZS061-A25-050)
