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계통 연계형 PCS의 운전모드 전환시 사고전류 최소화를 고려한 LCL 필터 설계
정재헌(Jae-Hun Jung),권창근(Chang-Keun Kwon),노의철(Eui-Cheol Nho),김인동(In-Dong Kim),김흥근(Heung-Geun Kim),전태원(Tae-Won Chun) 전력전자학회 2011 전력전자학술대회 논문집 Vol.2011 No.7
A new LCL filter design of a PCS with the consideration of fault current minimization is proposed. The magnitude of fault current is analysed with the variation of inverter side Li, line side Lu, and filter capacitor Cf under constant line side THDi of 5%. It is found that inverter side fault current reaches up to 200%~660% of the rated current with the variation of Li. It is expected that the results can be applied to the detailed design of PCS filter.