TY - GEN
T1 - Dynamic Influence Analysis of Virtual Inertia on Reconnection of Microgrid
AU - Zhang, Xiao
AU - Wang, Zhenxiong
AU - Wang, Haocheng
AU - Liu, Xiayu
AU - Yi, Hao
AU - Zhuo, Fang
N1 - Publisher Copyright:
© 2021 IEEE.
PY - 2021/5/24
Y1 - 2021/5/24
N2 - The microgrid is useful in integrating renewable energy sources and distributed generation. Due to the inrush current, voltage harmonics and stability issue, microgrid cannot directly switch from the islanded mode to the grid-connected mode. Moreover, virtual inertia has proven to effectively improve the dynamic performance of the microgrid, which also influence the characteristics of mode switch. However, the influence of virtual inertia on microgrid reconnection has not been sufficiently studied. In this paper, the transient process in microgrid reconnection is modeled to analyze the inrush current. Based on the model, the influence of the virtual inertia on reconnection is analyzed, including the magnitude and response speed of the inrush current, and the stability of the reconnection of microgrid. Therefore, the proposed method for optimization of virtual inertia can improve the reconnection performance of microgrid, which eliminates the inrush current, and hence smooth the reconnection process. Finally, the simulation result verifies the effectiveness of the proposed method.
AB - The microgrid is useful in integrating renewable energy sources and distributed generation. Due to the inrush current, voltage harmonics and stability issue, microgrid cannot directly switch from the islanded mode to the grid-connected mode. Moreover, virtual inertia has proven to effectively improve the dynamic performance of the microgrid, which also influence the characteristics of mode switch. However, the influence of virtual inertia on microgrid reconnection has not been sufficiently studied. In this paper, the transient process in microgrid reconnection is modeled to analyze the inrush current. Based on the model, the influence of the virtual inertia on reconnection is analyzed, including the magnitude and response speed of the inrush current, and the stability of the reconnection of microgrid. Therefore, the proposed method for optimization of virtual inertia can improve the reconnection performance of microgrid, which eliminates the inrush current, and hence smooth the reconnection process. Finally, the simulation result verifies the effectiveness of the proposed method.
KW - grid-connected transient model
KW - inrush current and system stability
KW - virtual inertia
UR - https://www.scopus.com/pages/publications/85114206447
U2 - 10.1109/ECCE-Asia49820.2021.9479460
DO - 10.1109/ECCE-Asia49820.2021.9479460
M3 - 会议稿件
AN - SCOPUS:85114206447
T3 - Proceedings of the Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021
SP - 509
EP - 514
BT - Proceedings of the Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 12th IEEE Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021
Y2 - 24 May 2021 through 27 May 2021
ER -
