대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 1994년도 하계학술대회 논문집 A
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- Pages.389-391
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- 1994
전류 제어형 인버터의 가변 구조 제어 방식에 관한 연구
Variable Structure Control Method for Current Controlled Inverter
- Lee, Jeong-Uk (Dept. of Electrical Eng., Korea University) ;
- Yoo, Ji-Yoon (Dept. of Electrical Eng., Korea University) ;
- Park, Gwi-Tae (Dept. of Electrical Eng., Korea University)
- 발행 : 1994.07.21
초록
This paper proposes an approach to control the current amplitude and phase simultaneously. To do this, variable structure control and adaptive parameter estimation arc applied to the current control of a single-phase PWM inverter with unknown R-L series load. The load parameters, R and L, are estimated by using the recursive least square method and these parameters are used to adjust the feedback gains of control input. The inverter system is modelled in a 2nd-order system by treating load current variation caused by inductive component as a disturbance. Simulation and experiment based on the 2nd -order model are done and the results show good dynamic response and low THD.
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