earticle

영어

In order to suppress electromagnetic interference of PWM driving system, electromagnetic interference characteristics ,system distribution and main influence factor in this system must be accurately mastered. Therefore this paper used conduction separation network to meter common mode interference of PWM inverter system ,and through comparison results of different conditions ,the author obtained the distribution of common mode interference on power side and load side . Then the team made analysis and improvement to the common-mode interference model, at last through theory analysis and calculation some suppression method to CM interference was found , which may provide certain theoretical guidance for EMI filter design.