CAJ | 학술논문

提出一种串联有源电压质量调节器（AVQR）直流侧电压给定值自调整方法。采用可控整流来实现直流侧电压与系统缺损电压相适应的直流侧电压自适应控制,提高了装置的工作效率。以一台2kVA的AVQR为例,对不控与可控直流侧电压2种情况下装置的损耗和运行效率进行了详细对比分析。实验结果验证了所提出控制方法的正确性。实测表明,在相同的电源和负载情况下,AVQR的工作效率得到了很大提高。
제출일충천련유원전압질량조절기（AVQR）직류측전압급정치자조정방법。채용가공정류래실현직류측전압여계통결손전압상괄응적직류측전압자괄응공제,제고료장치적공작효솔。이일태2kVA적AVQR위례,대불공여가공직류측전압2충정황하장치적손모화운행효솔진행료상세대비분석。실험결과험증료소제출공제방법적정학성。실측표명,재상동적전원화부재정황하,AVQR적공작효솔득도료흔대제고。
A series active voltage quality regulator（AVQR） that the DC-link voltage can be adjusted automatically is proposed.With thyristor rectifiers,the implementation of the variable DC-link voltage adapted to the missing voltage of the AVQR improves the regulator＇s efficiency greatly.The strategy is analyzed in detail.Taking a 2 kVA experimental prototype as an example,the losses and efficiency of the diode and thyristor rectifier are compared and analysed.Finally,the validity and effectiveness of the proposed strategy are verified by experimental test.The experimental test results show that the efficiency of the prototype is increased significantly at the same supply voltage and load condition.