文档介绍：摘要摘要储能在电力系统中可起到多种调节作用,新兴的大规模可再生能源接入电网同样需要储能来实现电能的平稳输送,随着储能受到了越来越多的关注,对储能进行深入的研究具有较大意义。本文首先对电网规模储能系统进行了介绍,对电网规模储能系统在电力系统中的功能以及不同的储能技术进行了总结,随后对基于电池储能技术的储能系统提出了储能电站的概念,并对储能电站进行了阐述,详细分析了储能电站中的所有组成部分。由于储能电站的容量规模较大,可达到兆瓦级,接入电网的电压等级较高, 储能电池及双向变流器构成的电池储能单元容量有限,要形成更大规模的储能电站,需要集电系统连接电池储能单元构成完整的储能电站,本文在借鉴风电厂集电系统的研究成果基础上,提出了四种储能电站的集电系统结构。在现有电力系统可靠性评估和风电厂集电系统研究基础上,本文针对储能电站的特点,提出了储能电量损失期望值等适合于评价储能电站的八个可靠性指标,并对不同集电系统结构下的储能电站的可靠性进行了评估,通过算例对储能电站的可靠性评估进行了分析。本文对以太无源光网络通信技术的基本组成、传输方式、协议内容进行了阐述,提出了基于以太无源光网络的储能电站保护通信系统,并对该通信系统的配置进行了分析。最后基于IEC61850标准,对储能电站的相关逻辑节点进行了扩充。关键词:电网规模储能;储能电站;集电系统;可靠性评估;以太无源光网络 IV Abstraet ABSTRACT Energy storage carloffervarious regulating actionsinelectricpower ration ofexpanding large-scale renewable energy sources intopower grid also requires energy storage torealizethe stablepower ofthemore andmore application ofenergy storage,it isconsiderably significant tostudy the energy storage indepth. Thispaper gives allintroductionof面d-scale energy storage function ofgrid—scaleenergy storage inpower system and differenttechnologies ofenergy storage aresummarized concept ofenergy storage power stationis proposed subsequently,which isbased on thebattery energy energy storagepower ponents areanalyzed indetail. Because energy storage power station、杭tllhigh capacity reaches megawatt, connects tothehigh voltage level,and isrestrictedby thecapacity ofbatteryenergy storage unitconsisting of theenergy storage batteryand bidirectional power conversion system,collector system isrequired toconnect thebatteryenergy storage unittoformlargerenergy storage power kinds ofcollectorsystem of energy storage power station are proposed in thispaper,which isbased on the reference tothe research findings ofwind power plant’S collectorsystem. Based on the current power system reliability assessment and windpower plant’S collector system,eightreliability indexeswhich aresuited to assess theenergy st