An Approach to Decrease Transient Circulating Current of VSIs in Islanded Microgrid

Authors

  • M. Kohansal Electrical Engineering Department, Amirkabir University of Technology Author
  • G. B. Gharehpetian Electrical Engineering Department, Amirkabir University of Technology Author
  • M.Aghaei Electrical Engineering Department, Amirkabir University of Technology Author
  • M. J. Sanjari Electrical Engineering Department, Amirkabir University of Technology Author

DOI:

https://doi.org/10.24084/repqj10.482

Keywords:

Microgrid, Parallel inverter, Circulating current, Conventional droop method, Voltage source inverter

Abstract

This paper investigates new methods of transient power sharing in parallel inverters. In order to obtain a faster transient response, a control unit is added to conventional droop method. In this control unit, the nominal frequency and voltage of inverters are changed to control the circulating current during transients. In this wireless method, the amount and period of circulating current between inverters are reduced. A detailed analysis shows that the proposed method has a superior transient performance and power sharing in comparison with the other methods. The simulation results indicate the accuracy of the proposed method.

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Published

2024-01-17

Issue

Vol. 10 No. 6 (2012)

Section

Articles