Improving power sharing and reduction circulating current in parallel inverters of isolated microgrids

Author

Khodadoost Arani, A.A. ; Tavakoli, A. ; Gharehpetian, G.B. ; Seydali Seyf Abad, M.

Author_Institution

Dept. Electr. Eng., Amirkabir Univ. of Technol., Tehran, Iran

fYear

2013

fDate

17-18 Dec. 2013

Firstpage

75

Lastpage

79

Abstract

A new control scheme to improve in dynamic response of parallel inverters is proposed in this paper. The conventional droop method is a good choice for managing microgrid in a decentralized manner. The proposed control technique, based on the droop control method, uses current feedback signal and Power Angle of VSIs. This method is usually applied to achieve good active and reactive power sharing and decreasing circulating current in transient. In this work, a great improvement in transient response is achieved by introducing this new droop for voltage and frequency. Simulation results that validate the proposed controller are provided.

Keywords

distributed power generation; electric current control; invertors; power generation control; VSI; active power sharing; control scheme; control technique; controller; current feedback signal; droop control method; droop method; dynamic response; frequency droop; isolated microgrids; microgrid; parallel inverters; power angle; power sharing; reactive power sharing; reduction circulating current; transient response; voltage droop; Frequency control; Impedance; Inverters; Mathematical model; Microgrids; Reactive power; Transient analysis; VSI conventional droop method; current circulating (CC); microgrid (MG); parallel inverters;

fLanguage

English

Publisher

ieee

Conference_Titel

Smart Grid Conference (SGC), 2013

Conference_Location

Tehran

Print_ISBN

978-1-4799-3039-5

Type

conf

DOI

10.1109/SGC.2013.6733802

Filename

6733802