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。
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.
功率因数校正技术是抑制谐波电流、提高功率因数的行之有效的方法，近年来受到了越来越多的关注。
Power factor correction technology is an effective method of restraining harmonic currents and increasing power factor, which has been attended more and more in recent years.
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.
功率因数校正技术对输入电流进行校正，提高设备利用率，减少谐波对电网的污染。
Power Factor Correction (PFC) technique make input current waves sine, improve efficiency of the system and reduce harmonic waves.
功率因数校正技术对输入电流进行校正，提高设备利用率，减少谐波对电网的污染。
Power Factor Correction (PFC) technique make input current waves sine, improve efficiency of the system and reduce harmonic waves.
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