Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 2000.07b
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- Pages.1233-1235
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- 2000
Sensorless Control of Three Phase Converter using estimated Input Phase-Voltage and DC-link Voltage
전원전압과 DC-link 전압 추정을 통한 3상 컨버터 센서리스 제어
- Chu, Hung-Seok (Pusan National Univ.) ;
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Park, Sung-Jun
(Dong-myung college) ;
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Kim, Kwong-Tae
(Pusan Information college) ;
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Kim, Cheul-U
(Pusan National Univ.)
- Published : 2000.07.17
Abstract
A new control method of three phase converter without measuring input phase-voltage and DC-link voltage is proposed. Input phase-voltage of these required voltages is estimated using EKF(Extended Kalman Filter) and DC-link voltage is estimated from the measured line currents and the estimated input phase-voltage. This control method is achieved without PLL(Phase Locked Loop) which senses the angle of input phase-voltage and DC-link voltage sensor. In addition, the proposed method controls high power factor and DC-link voltage utilizing the estimated phase angle. This paper describes the effectiveness of the proposed estimated algorithm through simulations.
Keywords