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송호빈(H.B. Song),서영수(Y.S. Seo) 전력전자학회 2003 전력전자학술대회 논문집 Vol.2003 No.7(2)
This paper described a robust control of an induction motor using a disturbance cancellation observer of a feedforward control with Matlab simulink. The speed response of conventional PI controller characteristics is affected by variation of load torque disturbance. In this system, the speed control characteristics using a feedforward control toughen about a load torque disturbance.<br/>
압전 변압기를 이용한 35W(T5)급 형광등 안정기 구동 시스템 특성에 관한 연구
황락훈(L. H. Hwang),장진혁(J. H. Jang),나승권(S. K. Na),김영수(Y. S. Kim),안익수(I. S. Ahn),조문택(M. T. Cho),송호빈(H. B. Song) 대한전기학회 2006 대한전기학회 학술대회 논문집 Vol.2006 No.7
In this study, in order to solve these problems, a new type of electronic ballast, which is composed of rectifier, active power factor corrector, series resonant half bridge inverter and piezoelectric transformer, was proposed for driving T5 fluorescent lamp. Driving of piezoelectric transformer was carried out with input region for the ring electrode and output region for the dot electrode. A 35W (T5) fluorescent lamp was successfully driven by the fabricated ballast with piezoelectric transformer.
위치 추적기를 사용한 태양광 발전의 전력 변환시스템 특성에 관한 연구
황락훈(L. H. Hwang),장진혁(J. H. Jang),나승권(S. K. Na),김영수(Y. S. Kim),안익수(I. S. Ahn),조문택(M. T. Cho),송호빈(H. B. Song) 대한전기학회 2006 대한전기학회 학술대회 논문집 Vol.2006 No.7
In this paper, I used microprocessor and sensor and designed to improve the efficiency of the photovoltaic system the photovoltaic position tracker device, and compared the normal photovoltaic system of fixed form with the photovoltaic system of solar position tracked form. Moreover, compared the catalogue of solar cell module and the simulation through a mathematics modelling with the solar cell's characteristic interpreting and, composed an power conversion system with boost converter and voltage source inverter. Used the constant voltage control method for maximum power point tracking in boost converter control and, used the SPWM(Sinusoidal Pulse Width Modulation) control method in inverter control.
유도 전동기의 외란 상쇄 관측기를 이용한 부하토오크 제어에 관한 연구
황락훈(L. H. Hwang),장진혁(J. H. Jang),나승권(S. K. Na),김영수(Y. S. Kim),조문택(M. T. Cho),송호빈(H. B. Song) 대한전기학회 2006 대한전기학회 학술대회 논문집 Vol.2006 No.7
This paper designed a robust control of an induction motor using a disturbance cancellation observer of a feedforward control. The speed response of conventional PI controller characteristic is affected by variations of load torque disturbance. In the proposed system, the speed control characteristic using a feedforward control isn't affected by a load torque disturbance. High speed calculation and processing for vector control is carried out by ADMC300 digital signal processor. Validity of the proposed control method is verified through simulation and experimental result.