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针对电力系统中存在大量谐波污染问题,考虑到有源滤波器价格昂贵,目前主要应用于低压场合,传统无源滤波器存在电容器参数受环境影响导致滤波器偏离谐振点的缺陷,试制了基于可变电抗器的无源动态谐波滤波装置。研制一种处理速度快,实时性高,控制精度高,稳定性好的基于单片机的无源动态谐波滤波控制器,替代原有PLC控制器。该滤波装置能够实时滤除电网中的各次谐波,有效改善供电质量。
Considering the large number of harmonic pollution problems in the power system, considering that the active filters are expensive and are mainly used in low voltage applications, the traditional passive filters have the defects that the capacitor parameters deviate from the resonance point due to environmental influences. Passive dynamic harmonic filter of varactor. The development of a processing speed, real-time high, high precision, good stability based on single-chip passive dynamic harmonic filter controller to replace the original PLC controller. The filter device can filter out all the harmonics in the power grid in real time and effectively improve the power supply quality.