DOI Number : 10.5614/itbj.eng.sci.2011.43.2.5
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A New Voltage Control Method for Single-Phase PWM Inverters

Pekik Argo Dahono1, Een Taryana2

1School of Electrical Engineering and Informatics,
Institute of Technology Bandung, Bandung, Indonesia
2Department of Electrical Engineering,
University of Jenderal Achmad Yani, Bandung, Indonesia

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Abstract. A new voltage control method for single-phase full-bridge PWM inverters that having an output LC filter is proposed in this paper.  The proposed voltage controller has a capability to realize a zero steady-state output voltage error with fast response. The zero steady-state output voltage error is achieved by using a controller that is derived by using the virtual LC resonant circuit. Fast response is obtained by using a virtual resistance that is connected in parallel with the filter capacitor. The validity of the proposed method is verified by experimental results.

Keywords: PWM inverter; Virtual LC; Virtual resistor.

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