Passive Filters: Passive power filters are usually filtered using LC circuits: Active power filters are electronic devices that dynamically suppress harmonics and compensate for reactive power. It compensates for harmonics and reactive power that vary in size and frequency.
Features:
1) Dynamic compensation, fast response;
2) Simultaneous compensation for harmonics and reactive power;
3) The current of the compensation object increases and it is not overloaded;
4) The quality of compensation is not affected by changes in grid frequency;
5) It is not easy to resonate with the grid impedance.
According to the way of access to the grid, active power filters can be divided into parallel and series.
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