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IGBT 인버터 구동 유도전동기 고정자 권선에서의 과도전압 분포 해석
배성우(S.W. Bae),황돈하(D.H. Hwang),김용주(Y.J. Kim),김동희(D.H. Kim),김민희(M.H. Kim),이인우(I.W.LEE) 전력전자학회 2002 전력전자학술대회 논문집 Vol.- No.-
In this paper voltage distribution in stator windings of induction motor driven by IGBT PWM inverter is studied. To analyze the irregular voltage of stator winding, equivalent 챠rcuit model of inverter-cable-motor was proposed and high frequency parameter is computed by using finite element method (FEM). Electro-magnetic transient program (EMTP) analysis of the whole system for induction motor and PWM inverter is proposed. Induction motor, 50 [HP], and a switching surge generator was built to consider the voltage distribution. The results of EMTP analysis compared with experimental results
인공지능에 의한 부하전류파형의 인식으로 화재감지 시스템
이오걸(Lee O.K.),송호신(Song H.S.),김태우(Kim T.W.),김민희(Kim M.H.) 전력전자학회 2001 전력전자학술대회 논문집 Vol.2001 No.7
In this paper, a method which can detect tracking caused by the insulation deterioration of conduct wiring, is proposed.<br/> The computer which take experiment data is learned by neural network algorithm, which has recently been used for the load recognition.<br/> The proposed method in our study can be applied to the development of several measuring equipments such as hot-line insulation tester, car earth tester for the detection of tracking under hot-line state.