The ideal voltage and current wavebs in power systems are all sine waves with a frequency of 50Hz, but they arewidely used in non-linear power equipment (such as high-power thyristors, frequency converters, UPS, switching powersupplies, mid-frequency furnaces, and energy-saving lamps), in which a large number of distorted harmonic currents aregenerated and harmonic currents are coupled to produce harmonic voltages on the line. The Fourier series decombis perbed on the non-sinusoidal distortion current, where the component of the same frequency with the powerfrequency is the fundamental wave, and the component of the integral multiple of the fundamental wave frequency is theharmonic wave. This kind of harmonic "pollution" will cause great harm to the power grid and the user, so the harmonicsuppression is called a "green project"!

由于电力电子技术的发展，有源电力滤波器（APF）开始规模化应用，相对于传统的谐波抑制和无功补偿装置，APF 响应速度快、实时跟踪补偿各次谐波，具有补偿谐波、无功补偿和平衡三相电流的功能，同时，APF 还具有不受系统阻抗影响、无谐振隐患、补偿效率高等优势，在各行各业的供电系统中已经得到广泛应用。产品符合企业标准 Q31/0114000129C033-2017《ANAPF 有源电力滤波器》的规定。

1.2 ANAPF 的基本原理

ANAPF 系列有源电力滤波器并联在含谐波负载的低压配电系统中，能够对动态变化的谐波电流进行快速实时的跟踪和补偿。其原理为：ANAPF 系列有源电力滤波器通过 CT 采集系统谐波电流，经控制器快速计算并提取各次谐波电流的含量，产生谐波电流指令，通过功率执行器件产生与谐波电流幅值相等方向相反的补偿电流，并注入电力系统中，从而抵消非线性负载所产生的谐波电流。

技术参数

应用组网图

外形尺寸