A Control Method to Enhance Dynamic Performance of Parallel Inverters in Islanded Microgrid


Kohansal M., Moghani J. S. , Abdi B., Gharehpetian G. B.

International Aegean Conference on Electrical Machines and Power Electronics / Electromotion Joint Conference, İstanbul, Turkey, 8 - 10 September 2011, pp.753-757 identifier

  • Publication Type: Conference Paper / Full Text
  • City: İstanbul
  • Country: Turkey
  • Page Numbers: pp.753-757
  • Keywords: microgrid, distributed generation, parallel inverters, VSI, conventional droop method, LOAD-SHARING CONTROL, CONTROL STRATEGY, SUPPLY-SYSTEMS, UPS INVERTERS, OPERATION, DESIGN

Abstract

A new method for the power sharing in parallel inverters is proposed in this paper. The power calculation unit of the conventional droop is improved to obtain fast transient response. The reduction of the circulating current between inverters during system dynamics is one of the advantages of this method. Also, the proposed control method has a good dynamic performance and power sharing. The simulation results are presented to prove the validity and the improvements achieved by the proposed controller.