电气传动2019，Vol.49Issue(4)：23-27,5.DOI:10.19457/j.1001-2095.dqcd18308
电机驱动系统平衡结构共模电压消除策略
Balanced Structure Common Mode Voltage Cancellation Strategy of Motor Drive System
摘要
Abstract
In order to optimize the electromagnetic compatibility of motor drive system,a common mode voltage cancellation strategy of motor drive system based on balanced structure was proposed to reduce or eliminate earth leakage current,bearing current and common mode electromagnetic interference. The proposed balanced structure topology divided each phase of the bridge switch into two,which produced two complementary balanced three-phase output voltages,thereby eliminated the common-mode voltage in the system. The advantage of the new solution was that no additional filter components were needed,modified the modulation strategy,or increasd the device's rated capacity. Finally,based on the motor drive platform,the relevant test was carried out,the test results verify that the new strategy can effectively suppress the common mode voltage.关键词
电机驱动/共模电压/电磁干扰/三相逆变器Key words
motor drive/common mode voltage/electromagnetic interference/three-phase inverter分类
信息技术与安全科学引用本文复制引用
姚月琴,王秀琳..电机驱动系统平衡结构共模电压消除策略[J].电气传动,2019,49(4):23-27,5.基金项目
江苏省科技支撑项目(BY2015057-26) （BY2015057-26）
