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주권선 전류검출에 의한 단상유도전동기의 구동시스템 구현
최낙일(N.I Choi),박수강(S.K Park),오금곤(K. G Oh),백형래(H.L Baek),임양수(Y.S Lim),오기진(K.J Oh) 전력전자학회 1997 전력전자학술대회 논문집 Vol.1997 No.-
A Single phase induction motor is the predominant fractional horsepower power rated, extensively used in domestic and industrial applications. For example, these motors provide the motive power to washing machines, fans, refrigerators, etc. In this paper, single phase induction motor input current was detected by a small current transformer and determined TRIAC gate signal by using op-amp analog circuit. The soft-start strategy is based on limited auxiliary current angle during starting period in the closed-loop control. The Simulation and experimental result show the motor's starting and are compared with centrifugal switch starting motor.