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ICS27.180P19备案号：J2133—2016中国电力企业联合会标准PT/CEC5006—2018微电网接入系统设计规范Designcodeformicrogridconnectingtopowersystem2018-01-24发布2018-04-01实施中国电力企业联合会发布T/CEC中国电力企业联合会标准微电网接入系统设计规范风DesigncodeformicrogridconnectingtopowersystemT/CEC5006—2018主编机构：中国电力企业联合会批准部门：中国电力企业联合会施行日期：2018年4月1日中国电力出版社2018北京中国电力企业联合会标准微电网接入系统设计规范DesigncodeformicrogridconnectingtopowersystemT/CEC5006—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）印刷*2018年月第一版2018年月北京第一次印刷850毫米×1168毫米32开本印张千字*统一书号155198·0000定价00.00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/CEC5006—2018I前言本规范根据中电联《关于印发中电联标准并网型微电网专项计划的通知》（中电联标准〔2017〕166号）的要求，由中国电力科学研究院有限公司会同有关单位共同编制完成。本规范在编制过程中，编制组进行了广泛的调查分析，召开了多次专题研讨会，总结了近年来我国微电网接入系统设计的实践经验，在此基础上以多种方式广泛征求了国内有关单位的意见，对主要问题进行了反复讨论和研究，最后经审查定稿。本规范共分5章，主要内容包括总则、术语、基本规定、一次系统设计、二次系统设计等。本规范由中国电力企业联合会负责管理，由全国微电网与分布式电源并网标准化技术委员会负责日常管理。本规范主编单位：国家电网公司中国电力企业联合会中国电力科学研究院有限公司本规范参编单位：中国电力工程顾问集团公司国网北京经济技术研究院中国电子工程设计院国网电力科学研究院东北电力设计院国网江苏省电力公司中国科学院电工研究所天津大学本规范主要起草人：王宏志汪毅刘纯赵海翔吕健王成山佟明东何国庆李敬如王一波谷毅藤林T/CEC5006—2018II王基李光辉李强于金辉张树森冯炜赵伟然史梓男邵岚李鹏袁晓冬王彤王守相杨子龙冯凯辉金强曲春辉孙文文隋文正徐林宋飞本规范主要审查人：郭家宝李晨马溪原李爱武吕平洋董开松王国鹏刘石川赵颖科邹宇贾艳刚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/CEC5006—2018III目次1总则·····························································································12术语·····························································································23基本规定·····················································································34一次系统设计·············································································44.1接入系统电压等级·····································································44.2潮流计算··················································································44.3短路电流计算···········································································54.4电能质量··················································································54.5设备选择··················································································55二次系统设计·············································································75.1继电保护和安全自动装置···························································75.2通信和自动化···········································································85.3电能计量··················································································8本规范用词说明·············································································10引用标准名录·················································································11附：条文说明·················································································13T/CEC5006—2018IVContents1Generalprovisions·······································································12Terms···························································································23Basicrequirements·······································································34Designofprimarysystem·····························································44.1Voltagelevelofintegration···························································44.2Loadflowcalculation··································································44.3Short-circuitcurrentcalculation·····················································54.4Powerquality·············································································54.5Equipmentselection····································································55Designofsecondarysystem·························································75.1Protectionandautomaticsafetydevice············································75.2Communicationandautomatic······················································85.3Electricalpowermetering·····························································8Explanationofwordinginthiscode·················································10Listofquotedstandards···································································11Addition:Explanationofprovisions·················································13T/CEC5006—201811总则1.0.1为规范微电网接入系统设计，保障微电网和配电网的安全稳定运行，制定本规范。1.0.2本规范适用于通过35kV及以下电压等级接入电网的新建、改建和扩建并网型微电网项目。1.0.3微电网接入系统设计应从全局出发，统筹兼顾，按照建设规模、工程特点、发展规划和配电网条件，通过技术经济比较确定设计方案。1.0.4微电网接入系统设计除应符合本规范外，尚应符合国家现行有关标准的规定。T/CEC5006—201822术语2.0.1微电网microgrid由分布式发电、用电负荷、监控、保护和自动化装置等组成（必要时含储能装置），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。2.0.2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。2.0.3并网点pointofinterconnection对于有配电站的微电网，指配电站高压侧母线或节点；对于无配电站的微电网，指微电网的输入/输出汇总点。2.0.4公共连接点pointofcommoncoupling电力系统中一个以上用户的连接处。2.0.5黑启动blackstart微电网在全部停电后，只依靠内部分布式电源完成启动的过程。T/CEC5006—201833基本规定3.0.1微电网接入系统设计时，对于潮流计算、短路电流计算和继电保护配置，应分析微电网并网和独立两种运行模式，以及两种运行模式切换时的影响。3.0.2微电网接入系统设计，在电能质量、有功功率控制、无功功率与电压调节、运行适应性等方面，应符合现行国家标准《微电网接入电力系统技术规定》GB/T33589的规定。3.0.3电源种类较多、结构较为复杂的微电网，在进行接入系统设计时，可根据需要进行微电网运行稳定性及电能质量专题研究。T/CEC5006—201844一次系统设计4.1接入系统电压等级4.1.1微电网宜采用单个并网点接入系统。当有两个及以上与外部电网的并网点时，在并网运行时，应保证只有一个并网开关处于闭合状态。4.1.2微电网接入的电压等级应根据安全性、灵活性、经济性原则，以及微电网与系统之间的最大交换功率、导线载流量、上级变压器及线路可接纳能力、所在地区配电网情况，参照表4.1.2确定。当高、低两级电压均具备接入条件时，可采用低电压等级接入，但不应低于