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。
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。
To enhance the performance of UPQC, active power factor correction (APFC) technology is introduced into the DC energy storage unit of UPQC for capacitive voltage control.
为了进一步提高UPQC的性能，将有源功率因数校正(APFC)技术引入UPQC直流储能单元的直流电容电压控制，详细阐述了其工作原理，并给出了仿真实验结果。
The Power Factor of electronic devices is a main index to judging their performance, while Active Power Factor Correction (APFC) is a radical and effective approach to improve Power Factor.
用电设备的功率因数是衡量其性能的一项重要指标，而提高功率因数的最根本和有效的途径就是采用有源功率因数校正技术。
The Power Factor of electronic devices is a main index to judging their performance, while Active Power Factor Correction (APFC) is a radical and effective approach to improve Power Factor.
用电设备的功率因数是衡量其性能的一项重要指标，而提高功率因数的最根本和有效的途径就是采用有源功率因数校正技术。
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