Title :
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
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;
Conference_Titel :
Electronics and Application Conference and Exposition (PEAC), 2014 International
Conference_Location :
Shanghai
DOI :
10.1109/PEAC.2014.7037854
