摘要
在不同负荷下,对工频电源供电与变频电源供电凝结水泵的谐波电流进行比较分析,根据实测数据得出,变频器供电时产生的谐波电流较小,母线电压总谐波畸变率低于国家标准,输出电压、电流的波形平滑,不会产生有害的脉动转矩。
After comparative analysis on harmonics circuit of the condensate pump supplied by frequency or variable frequency power under the different voltage,the real data indicates that,the harmonics circuit is small,the general distortion ratio of busbar voltage is lower than the standard,the waveform of output voltage and current are smooth,bad torque ripple can′t be produced.
出处
《河北电力技术》
2007年第2期15-17,共3页
Hebei Electric Power
关键词
谐波
变频设备
谐波畸变率
危害
harmonics
inverter device
distortion ratio
harm
