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介绍一种简单的计算有源电力滤波器补偿电流的方法，可以有效地消除负载中的谐波电流和提高电网的功率因数，即使在电路参数变化时，也能自动地产生相应的补偿电流。
A simple method of calculating current compensation of active power filter is introduced, which can effectively eliminate the harmonic current in the load and improve the power factor of the power grid, and can automatically generate the corresponding compensation current even when the circuit parameters change.