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박희철(H. C. Park),최한기(H. K. Choi),진차곤(C. G. Jin),김승희(S. H. Kim) 한국도시철도학회 2015 한국도시철도학회논문집 Vol.3 No.3
Powering system technology of electric rolling stock Which played pivotal role in transportation has been developed until now. As a result, the advanced technology was created that powering system was controlled by using a voltage and frequency. But, On account of the cost, the old chopper train is still working which is used by power thyristor. Deterioration of powering system which makes a fatal malfunction is considered deeply. This study intended for chopper train to examine the powering system stabilization for reducing a malfunction and to check the result of the operation.