TY - JOUR
T1 - Large-disturbance stability for power-converter-dominated microgrid
T2 - A review
AU - San, Guocheng
AU - Zhang, Wenlin
AU - Guo, Xiaoqiang
AU - Hua, Changchun
AU - Xin, Huanhai
AU - Blaabjerg, Frede
PY - 2020/7
Y1 - 2020/7
N2 - Compared with the conventional power system, the power-converter-dominated microgrid has it special features, especially time-varying, nonlinearity, weak anti-interference low-inertia and multi-time scale. These characteristics constitute new challenge to the modelling and stability analysis, since the stability analysis tools used for the power system based on AC synchronous-generator are not valid anymore in this case. In practice, the dynamic characteristics of multiple micro-sources and loads are coupled, interacted with each other. The recent publications have been reported the stability of microgrid, but not in a comprehensive and systematic way. To fill this gap, an overview of the large-disturbance stability for power-converter-dominated microgrid is presented. The characteristics and stability analysis of power-converter-dominated microgrid are discussed. Moreover, the technical challenges of using the conventional methods for power-converter-dominated microgrid are presented. Large-disturbance stability analysis with the Lyapunov method is discussed. Also, the step-by-step analysis based on the Lyapunov method is presented for the power-converter-dominated microgrid.
AB - Compared with the conventional power system, the power-converter-dominated microgrid has it special features, especially time-varying, nonlinearity, weak anti-interference low-inertia and multi-time scale. These characteristics constitute new challenge to the modelling and stability analysis, since the stability analysis tools used for the power system based on AC synchronous-generator are not valid anymore in this case. In practice, the dynamic characteristics of multiple micro-sources and loads are coupled, interacted with each other. The recent publications have been reported the stability of microgrid, but not in a comprehensive and systematic way. To fill this gap, an overview of the large-disturbance stability for power-converter-dominated microgrid is presented. The characteristics and stability analysis of power-converter-dominated microgrid are discussed. Moreover, the technical challenges of using the conventional methods for power-converter-dominated microgrid are presented. Large-disturbance stability analysis with the Lyapunov method is discussed. Also, the step-by-step analysis based on the Lyapunov method is presented for the power-converter-dominated microgrid.
KW - Lyapunov method
KW - Microgrid
KW - Power-converter-dominated micogrid
KW - Stability analysis
UR - http://www.scopus.com/inward/record.url?scp=85083391962&partnerID=8YFLogxK
U2 - 10.1016/j.rser.2020.109859
DO - 10.1016/j.rser.2020.109859
M3 - Review article
SN - 1364-0321
VL - 127
SP - 1
EP - 12
JO - Renewable & Sustainable Energy Reviews
JF - Renewable & Sustainable Energy Reviews
M1 - 109859
ER -