Research on Impact of Energy Storage System on Small Signal Stability of Power System

doi:10.16628/j.cnki.2095-8188.2020.05.006

DIANQI YU NENGXIAO GUANLI JISHU ›› 2020, Vol. 590 ›› Issue (5): 35-43.doi: 10.16628/j.cnki.2095-8188.2020.05.006

• Research & Analysis • Previous Articles Next Articles

Research on Impact of Energy Storage System on Small Signal Stability of Power System

RAO Yufei¹, CAO Xiaolu², YANG Haijing¹, HE Ping³, LI Zhao³, MA Tao³

1. Electric Power Research Institute of State Grid Henan Electric Power Company, Zhengzhou 450052, China;
2. Henan Hezhong Electric Power Technology Co.,Ltd., Zhengzhou 450052, China;
3. College of Electrical and Information Engineering,Zhengzhou University of Light Industry, Zhengzhou 450002, China

Received:2019-12-28 Online:2020-05-30 Published:2020-05-29

Abstract

Abstract: According to the situation of energy storage system connected to the interconnected power grid,the impact on the small signal stability of the power system was studied from multiple perspectives.The topological structure and mathematical model of the energy storage module were constructed,including power decoupled control,state of charge calculation,current limit link and voltage ride-through model.The interconnection system model with energy storage system was established,the influences of transmission distance of energy storage power stations,power of interconnected systems,grid connection points,and grid storage capacity,as well as the power system stabilizers on the small signal stability and low frequency oscillation characteristics of power system were studied by the eigenvalue analysis and time-domain simulation methods.Finally,through simulation analysis of transmission line from Shihe to Chunshen in Henan power grid,the effects of energy storage in improving the small signal stability of the power system are validated.

Key words: energy storage system, small signal stability, eigenvalue analysis, low frequency oscillation

CLC Number:

TM732

RAO Yufei, CAO Xiaolu, YANG Haijing, HE Ping, LI Zhao, MA Tao. Research on Impact of Energy Storage System on Small Signal Stability of Power System[J]. DIANQI YU NENGXIAO GUANLI JISHU, 2020, 590(5): 35-43.

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Research on Impact of Energy Storage System on Small Signal Stability of Power System

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