储能系统接入对电力系统小干扰稳定影响研究*

doi:10.16628/j.cnki.2095-8188.2020.05.006

电器与能效管理技术 ›› 2020, Vol. 590 ›› Issue (5): 35-43.doi: 10.16628/j.cnki.2095-8188.2020.05.006

储能系统接入对电力系统小干扰稳定影响研究^*

饶宇飞¹, 曹晓璐², 杨海晶¹, 和萍³, 李钊³, 马涛³

1.国网河南省电力公司电力科学研究院, 河南郑州 450052;
2.河南合众电力技术有限公司, 河南郑州 450052;
3.郑州轻工业大学电气信息工程学院, 河南郑州 450002

收稿日期:2019-12-28 出版日期:2020-05-30 发布日期:2020-05-29
作者简介:饶宇飞(1984—),男,高级工程师,主要从事电力系统安全稳定分析、新能源技术等方面的研究。曹晓璐(1987—),女,主要从事电力系统稳定性分析、新能源并网等方面的研究。杨海晶(1977—),男,高级工程师,博士,主要从事电力系统分析与控制、储能技术应用等方面的研究。
基金资助:
* 国家自然科学基金资助项目(51507157); 河南省高等学校青年骨干教师资助项目(2017GGJS093)

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

摘要/Abstract

摘要： 针对储能电站接入互联电网的情况,从多角度研究其接入对电力系统小干扰稳定影响。构建了储能模块拓扑结构和数学模型,包括功率解耦控制、荷电状态计算、电流限制环节、电压穿越模型,搭建了含储能系统的互联系统模型,采用特征值分析和时域仿真方法,研究了储能系统输送距离、互联系统联络线功率、储能并网点、储能并网容量等对系统小干扰稳定和低频振荡特性影响,分析了电力系统稳定器的影响。最后通过河南电网浉河-春申线仿真分析,验证储能提高小干扰稳定性的效果。

关键词: 储能系统, 小干扰稳定, 特征值分析, 低频振荡

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

中图分类号:

TM732

饶宇飞, 曹晓璐, 杨海晶, 和萍, 李钊, 马涛. 储能系统接入对电力系统小干扰稳定影响研究^*[J]. 电器与能效管理技术, 2020, 590(5): 35-43.

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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储能系统接入对电力系统小干扰稳定影响研究^*

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

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