基于Matlab/Simulink的电磁干扰抑制的仿真研究

Simulation of Electromagnetism Noise Disturbing Based on Matlab/Simulink

随着电力电子及电气自动化技术的发展,大功率、高电压开关及逆变器、整流器等设备产生的干扰和对控制设备的影响越来越突出。如何减少设备产生的干扰并防止其他干扰源对电气设备的影响,涉及到学生掌握电磁兼容的原理及应用该原理来指导电气设备设计的能力。本文以变频冰箱产品开发为例,研究了电磁干扰问题。为此,进行了理论分析和仿真研究,根据仿真计算确定的参数,解决了变频冰箱系统的电磁干扰问题。

With the development of electrical and electronic technologies and automation technologies, the interference and the effects arisen from high-power, high-voltage switches, inverters and rectifiers have become worse. It is important that the students can grasp the principle of electromagnetic compatibility and improve the designing capabilities, which includes how to reduce the interference generated by equipment and how to prevent interference from other sources of electrical equipment. This paper selectes inverter refrigerator as a researching example to illustrate how to solve the electromagnetic interference problems. Through theoretical calculations, the electromagnetic inference is restrained by increasing the armature circuit inductance.