摘要
随着电化学储能的广泛应用,其已成为解决可再生能源并网问题的热门方案之一。然而,储能电站的充放电模式转换及不同的运行控制策略等,将导致电网故障特征更为复杂。为全面、深入地分析储能电站的并网故障特征,文中基于实际的储能电站拓扑结构和运行控制策略,建立了电化学储能电站仿真模型,模拟在常规充/放电、故障穿越、过充/过放等不同工况下储能电站的动态响应过程。在此基础上,明确了储能电站在常规充/放电和过充/过放场景下的故障特性差异,分析了产生差异的决定因素。最后,基于PSCAD/EMTDC仿真平台完成了所建模型的功能性验证,研究结果为了解储能电站的工作原理、研究储能电站的并网控制策略及保护方案提供了借鉴。
With the widespread application of electrochemical energy storage,it has become one of the popular solutions for the integration of renewable energy.However,the switching of charging and discharging modes and different operation control strategies of energy storage stations will lead to more complex fault characteristics of the power grid.In order to comprehensively and deeply analyze the grid-connected fault characteristics of energy storage stations,a simulation model of electrochemical energy storage stations is established based on the actual topology and operation control strategy of energy storage stations.The model simulates the dynamic response process of energy storage stations in different operation conditions such as conventional charging/discharging,fault ride-through,and overcharging/overdischarging.On this basis,the differences in fault characteristics of energy storage stations in conventional charging/discharging and overcharging/overdischarging scenarios are clarified,and the determinants for the differences are analyzed.Finally,the functional verification of the proposed model is completed based on the PSCAD/EMTDC simulation platform.The research results provide the reference for understanding the working principle of energy storage stations,studying grid-connected control strategies and protection schemes of energy storage stations.
作者
李斌
李博睿
李超
李盛伟
杨赫
LI Bin;LI Borui;LI Chao;LI Shengwei;YANG He(School of Electrical and Information Engineering,Tianjin University,Tianjin 300072,China;National Industry-Education Platform of Energy Storage,Tianjin 300354,China;State Grid Tianjin Electric Power Company,Tianjin 300010,China)
出处
《电力系统自动化》
EI
CSCD
北大核心
2024年第14期119-128,共10页
Automation of Electric Power Systems
基金
国家电网有限公司科技项目(5400-202312554A-3-2-ZN)。
关键词
电化学储能电站
建模
故障特性分析
过充/过放
故障穿越
electrochemical energy storage station
modeling
fault characteristic analysis
overcharging/overdischarging
fault ride-through
作者简介
李斌(1976-),男,博士,教授,博士生导师,主要研究方向:电力系统保护与控制、柔性直流电网控制保护。Email:binli@tju.edu.cn;李博睿(1998-),男,硕士研究生,主要研究方向:电力保护与控制、储能并网技术。E-mail:lbrtju1895@163.com;通信作者:李超(1988-),男,博士,副教授,硕士生导师,主要研究方向:电力系统保护与控制、超导电力应用。Email:lichao_tju@126.com。
