apfc_active_power_factor_correction

1.Principle and class of active power factor correction(APFC) are introduced.
主要介绍了有源功率因数校正（APFC）的工作原理、电路分类。
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2.This paper introduces the principle of active power factor correction (APFC), circuit-topology, control strategy and soft-switching technology, and predicts the tendency of APFC.
综述了APFC技术的基本原理，拓朴电路，控制策略及软开关技术，并预测了其发展趋势。
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3.The active power factor correction(APFC) technology is introduced into the DC energy storage unit ofUPQC for capacitive voltage control.
将有源功率因数校正技术引入UPQC直流储能单元的电压控制。
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