一种电波暗室的谐波抑制电路及其无功补偿方法

摘要

电波暗室的谐波抑制电路及无功补偿方法采用正向串联的两级串联型无源电力滤波器，滤波器和负载的电源端之间并联干式铁芯电抗器。干式铁芯电抗器主要用于抑制10 kHz及以上的高频干扰，在不影响串联型无源电力滤波器的滤波性能的基础上，抑制高次谐波，限制合闸涌流及操作过电压，改善系统的电压波形，提高功率因数，保障电力电容器及其他电力设备的安全运行，并联干式铁芯电抗器解决了各类负载入口处的电压变化的问题，提高了电磁兼容检测中计量性能的可靠性和准确性。%Two stages series active power filter are used to harmonic suppression circuit and reactive power compensa-tion in anechoic chamber.The dry-type iron core reactor is shunt between the filter and the load power supply termi-nal.Dry iron core reactor is mainly used for the inhibition of 10kHz and above high-frequency interference.It can ef-fectively suppress high order harmonic, limit switch flow and operate over-voltage, improve power factor and voltage waveform of the system without affecting the filter performance of the series passive power filter.It plays an important role in the safe operation of power capacitor and power equipment.Parallel dry iron core reactor not only solves the problem of voltage variation of different reactor loads at the entrance, but also improves the accuracy and reliability of the performance measurement in electromagnetic compatibility testing.