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Low-Cost Single-Phase to Three-Phase AC/DC/AC PWM Converters for Induction Motor Drives  

김태윤 (영남대학교 전자정보공학부)
이지명 (영남대학교 전자정보공학부)
석줄기 (영남대학교 전자정보공학부)
이동춘 (영남대학교 전자정보공학부)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.7, no.4, 2002 , pp. 322-331 More about this Journal
Abstract
In this paper, a single-phase to three-phase PWM converter topology using a single-phase half-bridge PWM rectifier and a 2-leg inverter for low cost three-phase induction motor drives is proposed. In addition, the source voltage sensor is eliminated with a state observer which controls the deviation between the model current and the system current to be zero. The converter topology is of lower cost than the conventional one, which gives sinusoidal input current, unity power factor, dc output voltage control, bidirectional power flow and VVVF output voltage. The experimental results for V/F control of 3Hp induction motor drives have been shown.
Keywords
Single-phase half-bridge PWM rectifier; 2-leg inverter; Source voltage estimation; Sensorless control;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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