文中分析了系统平衡变换原理，讨论了系统的平衡方式、补偿电流检测与有源滤波器控制方法。
In this paper, the principle of balanced transformation is analyzed; the balance mode, detection of compensating currents and controlling method of the active filter are discussed.
文中讨论了平衡变换原理，给出了补偿电流检测与有源滤波器控制方法。
The principle of balanced transformation is discussed. The detecting method of the compensating currents and control mode of the active power filter are proposed.
并联型有源电力滤波器适用于多种负载条件下的谐波和无功补偿，尤其是能应用于电源电流畸变和不平衡条件下。
The SAPF prototype can compensate harmonics and reactive well under varies load conditions, especially in the case of a distorted or unbalanced current of power supply.
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