摘要
在变频电源供电的交流电机运行中,逆变器产生的共模电压在耦合电容作用下会产生轴电压和轴电流。通过分析轴电压的产生基理及对轴承的影响,并根据轴电压的产生基理提出了相应的预防和抑制措施。研究表明,轴电压的预防措施,对逆变器驱动下的交流调速系统具有重要意义。
When AC motor powered by variable-frequency power supply is running, com- mon-mode voltage produced by inverter will case shaft voltage and shaft current under effect of coupling capacitance. By analyzing cause of the shaft voltage and its influence on bearing, rela- tive prevention and restraining measures are proposed. The research shows that prevention measure of shaft voltage is significant for AC adjustable-speed system driven by inverter.
出处
《防爆电机》
2016年第5期27-28,34,共3页
Explosion-proof Electric Machine
关键词
逆变器
轴电压
耦合电容
Inverter
shaft voltage
coupling capacitance
