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中国电力企业联合会标准低压微电网并网一体化装置技术规范T/CEC150—2018*中国电力出版社出版、发行（北京市东城区北京站西街19号100005）北京九天众诚印刷有限公司印刷*2018年7月第一版2018年7月北京第一次印刷880毫米×1230毫米16开本0.75印张18千字*统一书号155198·825定价11.00元版权专有侵权必究本书如有印装质量问题，我社发行部负责退换T/CEC150—2018ICS27.180F19备案号：53939-2016准T/CEC150—2018低压微电网并网一体化装置技术规范Technicalspecificationforgrid-connectedintegratedequipmentoflow-voltagemicrogrid2018-01-24发布2018-04-01实施中国电力企业联合会发布成品：210*297版心：166*238字数：45字*43行天：35；地：24；订：24；切：20T/CEC150—2018I目次前言···································································································································································II1范围······························································································································································12规范性引用文件··········································································································································13术语和定义··················································································································································14环境条件······················································································································································25一般规定······················································································································································26功能要求······················································································································································27性能指标······················································································································································38试验方法······················································································································································49试验规则······················································································································································610标志、包装、贮存、运输·························································································································7T/CEC150—2018II前言本标准按照GB/T1.1—2009《标准化工作导则第1部分：标准的结构和编写》给出的规则起草。请注意本标准的某些内容可能涉及专利。本标准的发布机构不承担识别这些专利的责任。本标准由中国电力企业联合会提出。本标准由全国微电网与分布式电源并网标准化技术委员会归口。本标准起草单位：中国电力科学研究院有限公司、北京群菱能源科技有限公司、常州中海电力科技有限公司、内蒙古电力集团综合能源有限责任公司。本标准主要起草人：吴鸣、季宇、于辉、吕志鹏、孙丽敬、宋振浩、刘海涛、熊雄、程本立、林永清、沈子奇、焦道海、刘国宇。本标准为首次发布。本标准在执行过程中的意见或建议反馈至中国电力企业联合会标准化管理中心（北京市白广路二条一号，100761）。T/CEC150—20181低压微电网并网一体化装置技术规范1范围本标准规定了低压微电网并网一体化装置（以下简称装置）的环境条件、一般规定、功能要求、性能指标、试验方法、试验规则以及标志、包装、贮存、运输的要求。本标准适用于接入400V及以下电压等级电网的新建、改扩建微电网的并网一体化装置。2规范性引用文件下列文件对于本文件的应用是必不可少的。凡是注日期的引用文件，仅注日期的版本适用于本文件。凡是不注日期的引用文件，其最新版本（包括所有的修改单）适用于本文件。GB/T191包装储运图示标志GB2894安全标志及其使用导则GB/T4208外壳防护等级（IP代码）GB/T5095.2电子设备用机电元件基本试验规程及测量方法第2部分：一般检查、电连续性和接触电阻测试、绝缘试验和电压应力试验GB7251.1—2013低压成套开关设备和控制设备第1部分：总则GB/T13384机电产品包装通用技术条件GB/T14598.27量度继电器和保护装置第27部分：产品安全要求GB/T25294—2010电力综合控制机柜通用技术要求GB/T29319光伏发电系统接入配电网技术规定GB/T33589微电网接入电力系统技术规定GB/T34129微电网接入配电网测试规范DL/T478—2013继电保护和安全自动装置通用技术条件3术语和定义GB/T29319、GB/T33589、GB/T34129界定的以及下列术语和定义适用于本标准。3.1微电网microgrid由分布式发电、用电负荷、监控、保护和自动化装置（必要时含储能装置）等组成，是一个能够基本实现内部电力电量平衡的小型供用电系统，微电网分为并网型微电网和独立型微电网。3.2并网型微电网grid-connectedmicrogrid既可以与外部电网并网运行，也可以独立运行，且以并网运行为主的微电网。3.3微电网并网一体化装置interconnectioninterfacedevicebetweenmicrogridandexternalpowergrid用于微电网接入低压配电网，具备并/离网开断及运行模式切换、涉网保护、测量、控制、通信及自动化等功能的装置。3.4并网点pointofmicrogridinterconnection分布式发电系统的输出汇总点。T/CEC150—201823.5储能变流器powerconversionsystem；PCS电化学储能系统中，连接于电池系统与电网（和/或负荷）之间的实现电能双向转换的变流器。4环境条件4.1运行环境条件装置的运行环境应满足如下条件：a）环境温度：－10℃～＋45℃（室内），－40℃～＋55℃（室外）。b）相对湿度：≤95%（25℃）。c）海拔：≤2000m。d）地震烈度：Ⅶ度。e）污秽等级：3级。4.2工作电源装置的工作电源应满足如下要求：a）额定电压：AC220V，允许偏差－20%～＋20%。b）频率：50Hz，允许偏差－5%～＋5%。5一般规定5.1功能装置应具备并/离网切换功能、启停功能、功率控制功能、测控功能、通信功能、显示功能。5.2分类按照接入配电网电压不同可分为380V三相微电网并网一体化装置和220V单相微电网并网一体化装置。5.3配置装置应包含开关、保护装置、电参量传感器、电参量采集装置、开关状态采集装置、网络通信装置、测控系统、显示装置与软件、装置状态指示灯等。6功能要求6.1并/离网切换功能装置应装设微电网并/离网切换开关装置，并满足如下要求：a）能够显示并网点开关状态并反馈至测控系统；b）能够响应来自测控系统和储能变流器的控制指令，进行开关状态切换；c）具有短路速断保护功能。6.2启停功能装置宜具备一键启动和断开开关，具备应急操作功能。6.3功率控制功能装置宜具有功率控制功能。T/CEC150—201836.4测控功能装置应具有电参量采样、测量、控制等功能，对相关信息进行采集、转换、处理和传送。其基本功能包括：a）应具备微电网内部各支路电压、电流、频率、功率等实时电参量的采集功能；b）应具备微电网内部各支路双向电能量的采集功能；c）应具备微电网并网点快速开关和各支路开关状态采集及控制功能；d）应具备并/离网模式切换控制功能。6.5通信功能装置的通信功能包括：a）应具备与分布式发电单元、储能变流器、电参量采集模块、负荷等设备的通信接口；b）宜具备以太网、串口、光纤等通信方式；c）可具备电力调度机构控制并网点开关接口。6.6显示功能装置应具备显示面板，可显示电压、电流、频率、有功功率、无功功率、电能量、并/离网状态和故障告警等主要信息，装置应具备电源、运行、异常等指示灯。7性能指标7.1结构和外观装置的结构和外观应满足如下要求：a）装置箱体应牢固、平整，表面应光滑、平整，涂覆的颜色应均匀一致，无明显的色差和眩光，表面应无砂粒、锈蚀、褶皱和流痕等缺陷；b）装置箱体面板应平整，文字和符号要求清楚、整齐、规范、正确；c）标牌、标志、标记应完整、清晰；d）各种门锁、开关应便于操作，灵活可靠；e）装置应在显著位置标有箱内金属部件带电的警示标志。7.2绝缘性能7.2.1绝缘电阻在正常试验大气条件下，装置各独立电路与外露的可导电部分之间，以及各独立电路之间，用直流绝缘电阻表测量其绝缘电阻，不应小于100MΩ。试验电压按表1的规定进行。表1绝缘电阻试验电压单位：V额定电压UN绝缘电阻表电压22050038010007.2.2绝缘强度在正常试验大气条件下，装置应能承受频率为50Hz、历时1min的工频交流电压或等效直流电压，T/CEC150—20184试验过程中要保证不击穿、不飞弧，漏电流不应大于20mA。试验电压的均方根值见表2，试验过程中，任一被试电路施加电压时，其余电路等电位互联接地。表2绝缘强度试验电压单位：V额定电压UN试验电压22020003802500注：整机介电强度按上述指标只能试验一次，用户验收产品时如需要进行介电强度试验，应将上列试验电压降低25%进行。7.2.3电气间距与爬电距离装置的电气间隙和爬电距