CAJ | 학술논문

三相交流电源供电的较大功率变频空调的广泛应用,带来了三相整流器的功率校正问题.根据三相三线制、三相四线制供电方式的不同.提出了两种结合有源PFC技术和无源PFC技术的Buck型混合三相有源部分PFC方案.在对其工作原理进行简要分析的基础上,进行了实验研究,所得结果验证了提出的三相部分PFC具有电压与电流应力小、效率高、功率因数高、直流平均电压较高的特点,各种负载下交流输入侧的各次谐波电流均满足IEC61000-3-2标准,中等负载以上时输入功率因数高达0.98,效率高达0.98.
삼상교류전원공전적교대공솔변빈공조적엄범응용,대래료삼상정류기적공솔교정문제.근거삼상삼선제、삼상사선제공전방식적불동.제출료량충결합유원PFC기술화무원PFC기술적Buck형혼합삼상유원부분PFC방안.재대기공작원리진행간요분석적기출상,진행료실험연구,소득결과험증료제출적삼상부분PFC구유전압여전류응력소、효솔고、공솔인수고、직류평균전압교고적특점,각충부재하교류수입측적각차해파전류균만족IEC61000-3-2표준,중등부재이상시수입공솔인수고체0.98,효솔고체0.98.
Higher power inverter-fed air-conditioner is powered by three-phase AC power supply with wide applications,bringing about the issue of the power factor correction(PFC)for three-phase rectifiers.Two three-phase partial active PFC is presented respectively for three-phase three-wire system and three-phase four-wire system,which incorporate active PFC and passive PFC techniques.Based on the description of working principle,the experiments are carried out,and the results prove the features of three-phase partial PFC of low voltage and current stresses,high efficiency,higher power factor and higher DC average voltage.The harmonics current are consistent with IEC61000-3-2 at any load.and the power factor is higher up to 0.98,and the efficiency is above 0.98 at above medium load.