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22.9㎸ 배전선로 적용을 위한 DVR의 새로운 외란검출 기법 및 제어시스템 설계
金義重(H.J. Kim),鄭容昊(Y.H. Chung),權起鉉(G.H. Kwon),朴泰範(T.B. Park),文全一(J.I. Moon),全榮洙(Y.S. Jeon) 대한전기학회 2006 전기학회논문지A Vol.55 No.1
This paper proposes the new voltage event detection method using the weight factor of neural network and describes control system design for the DVR(Dynamic Voltage Restorer) consisted of a rectifier and series inverter applied to 22.9㎸ distribution system. As this method can express the fault level of each phase, we expect the proposed method can make up for disadvantage of synchronous detection method. Also, in this paper, the control system was designed using double deadbeat controller. As it has an inner current control loop and an outer voltage control loop, we can easily limit the current level during the transient intervals by using the current control loop. Simulation and experiment are performed to prove the analysis of the voltage event detection method and double deadbeat controller.