摘要
针对变频器对电网造成的谐波污染及无功,在介绍功率器件IEGT及由此组成双PWM三电平变频器特点的基础上,给出了整流器五脉冲PWM调制方式与三角波PWM调制方式的谐波对比。结果表明,IEGT双PWM三电平变频器具有输入输出波形好、功率因数高、效率高等特点。
Discuss harmonic pollution and power factor is low that caused by inverter, introduce characteristic of IEGT and dual - PWM IEGT three - level inverter. Contrast the harmonic caused by five - pulse PWM modulate mode with triangle PWM modulate mode. As a result, IEGT dual - PWM three - level inverter has some characteristics such as good input and output waveform, high power factor and high efficiency, etc..
出处
《煤矿机械》
北大核心
2006年第10期102-104,共3页
Coal Mine Machinery
基金
北京市自然科学基金资助课题(20040302)
