新能源车用电机测试系统中干扰抑制研究

Measurement accuracy is one of the important factors that affect the performance of motor testing system for solar car. In order to improve the measurement accuracy of the motor testing system, this paper analyzes source, categories and characteristics of electromagnetic interference in the motor testing system. And this paper gives some methods, including space electromagnetic shielding and hardware filter, to suppress interference. Finally the experimental results show that the method can improves the measurement accuracy greatly.