补偿电流跟踪控制选用三角波比较控制法，并采用带电压前馈控制的比例调节闭环控制。

Compensatory current control adopts triangle wave compare control, and DC voltage control adopts PI closed loop control.

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该分布式电源系统采用高频母线形式，原边电路采用双管正激电路，电压前馈控制，后级利用磁放大器精确控制。

The primary circuit has the form of double switch forward of feedforward control, the second circuit used the magnetic amplifier as the post regulator.

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适当增大逆变器输出滤波电感，合理选择串联变压器原副方变比，或采用电压前馈控制技术为改善其滤波效果的三条有效措施。

Then, the filtering characteristic of the active power filter is analyzed. Three measures which can improve the filtering effect are gained: augmenting the filtering inductance properly;

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