A New Control Method for Single-Phase Grid-Connected Inverter Using Instantaneous Power Theory

نویسندگان

  • M. Heidari Faculty of Electrical and Computer Engineering, University of Birjand
  • M. Monfared Faculty of Engineering, Ferdowsi University of Mashhad
چکیده

Because of installation for local consumers and since it is free of all contaminations, connecting photovoltaic cells to the grid via single-phase inverter is significantly on the rise. In this paper, a new simple current control is proposed for a single-phase grid-connected voltage source inverter. Using the PQ theory and modelling a single-phase system as an unbalanced three-phase system, a method is provided for reference current generation. In the proposed method, it is not necessary to generate a fictitious phase for the current signal. Also, the removal of adjusting filter parameters which were used to generate fictitious current signal increases the simplicity of the control system and reduces computational efforts, especially in the presence of distortion in the current. The simulation results confirm that the proposed method provides a precise and fast current control with minimum harmonic distortions.

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عنوان ژورنال:

دوره 5  شماره 2

صفحات  105- 116

تاریخ انتشار 2017-12-01

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