Virtual impedance design of virtual synchronous generation in microgrid

Author

Chao Hu ; Fang Liu ; Haizhen Xu ; Rongliang Shi ; Lei Tao

Author_Institution

Sch. of Electr. Eng. & Autom., Hefei Univ. of Technol., Hefei, China

fYear

2014

fDate

5-8 Nov. 2014

Firstpage

200

Lastpage

204

Abstract

The adoption of virtual synchronous generation (VSG) control can maintain the stability of voltage and frequency in power electronic interfaced mircogrid. In this paper virtual impedance is added to the VSG control strategy in order to improve the system control performance in resistive-inductive line impedance, the influence of virtual impedance on VSG system stability and dynamic performance is analyzed through the small-signal model. Simulation is presented to verify the conclusion of this paper.

Keywords

distributed power generation; power generation control; power system stability; VSG control strategy; VSG system stability; dynamic performance; frequency stability; power electronic-interfaced mircogrid; resistive-inductive line impedance; small-signal model; system control performance; virtual impedance design; virtual synchronous generation control; voltage stability; Impedance; Inverters; Microgrids; Power system stability; Stability analysis; Stators; Voltage control; Microgrid; small signal model; virtual impedance; virtual synchronous generation;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics and Application Conference and Exposition (PEAC), 2014 International

Conference_Location

Shanghai

Type

conf

DOI

10.1109/PEAC.2014.7037854

Filename

7037854