Research on Improved Droop Control Strategy Based on Virtual Impedance

2018 2nd International Conference on Power and Energy Engineering

Liu, X.M.^1 ; Lu, B.C.^1 ; Ren, Z.P.^1 ; Zhang, R.X.^1

Liaoning University of Technology, Liaoning Province, China^1

关键词: Active and Reactive Power;    Distributed generation units;    Droop controllers;    Improved droop control strategies;    Improved droop controls;    Line impedance;    Power sharing;    Virtual impedance;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/192/1/012030/pdf
DOI  :  10.1088/1755-1315/192/1/012030

来源: IOP

【 摘 要 】

Due to the property of line impedance and other factors in micro-grid, power supplied by distributed generation units could not be shared accurately based on their traditional droop coefficient. To improve the power sharing accuracy of distributed generation units, improved droop control of power sharing strategy which was based on virtual impedance is proposed in this paper. Simulations results show that improved droop controller can achieve good load active and reactive power sharing.