Proceedings of the KIPE Conference (전력전자학회:학술대회논문집)
- 1998.10a
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- Pages.374-379
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- 1998
A Novel Control of Three-Phase PWM Rectifier Using Single Current Sensor
- Lee, Woo-Cheol (Dept. of Electrical Engineering, Hanyang University) ;
- Kweon, Taeg-Joon (Dept. of Electrical Engineering, Hanyang University) ;
- Hyun, Dong-Seok (Dept. of Electrical Engineering, Hanyang University) ;
- Lee, Taeck-Kie (Dept. of Control and Instrumentation Engineering, Ansung National University)
- Published : 1998.10.01
Abstract
This paper proposes a control method for three-phase PWM rectifier using only single current sensor in DC link. A PWM modulation strategy for reconstructing three phase current from the DC link current is given. The states of the rectifier switch are modified so that all phase currents can be reconstructed in a switching period although one of active vectors is applied only for a short time. Therefore, a novel current control using an adjustment scheme of the modulation signal for a three-phase PWM rectifier will be discussed, and verified with the experimental results.
Keywords