The Utility Power Factor Control system of Photovoltaic Power Generation System

  • Koh Kang-Hoon (Division of electrical and electronic engineering Kyungnam University) ;
  • Lee Hyun-Woo (Division of electrical and electronic engineering Kyungnam University) ;
  • Suh Ki-Young (Division of electrical and electronic engineering Kyungnam University) ;
  • Taniguchi Katsunori (Department of Electrical Engineering Faculty of Engineering, Osaka Institute of Technology)
  • Published : 2001.10.01

Abstract

The photovoltaic power generation system has a great future as clean energy instead of fossil fuel, which has many environmental problems such as exhausted gas or air pollution. In a utility interactive photovoltaic generation system, a three phase inverter is used for the connection between the photovoltaic array and the utility. This paper presents a three phase inverter for photovoltaic power system with current controller, voltage controller, PLL control system and the phase detector of interactive voltage by using dq transformation. The proposed inverter system provides a sinusoidal ac current for domestic loads and the utility line with unity power factor.

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