借助某电厂一台440 t/h 循环流化床（circulating fluidized bed， CFB）锅炉的静电除尘器左列右室第一电场，进行了采用高频电源、工频电源供电的电除尘器的性能对比试验。试验结果表明，使用高频电源比使用工频电源能降低粉尘排放4.25%，其中第一电场除尘效率提高了4.54%。从实际有效功率转换效率和输入有功功率2个角度证明了高频电源具有明显的节能效果，3.77年就可以回收投资；根据表观驱进速度ωk值给出了高频电源的选型方法。

Taking the first field of the right section at the left column of electrostatic precipitator (ESP) in a 440 t/h circulating fluidized bed (CFB) boiler as a research object, contrast tests of ESP performance were performed between high frequency power and fundamental frequency power. The results show that the dedusting quantity by using high frequency power has been improved 4.25% than that by using fundamental frequency power, in which the dedusting efficiency of the first field has been improved 4.54%. From the points of effective power's conversion efficiency and active power input, it is proved that high frequency power has obvious energy saving effect, and the payback period of power plant is 3.77 years. The selection method of high frequency power is suggested according to the value of apparent migration velocity of particle (ωk).