DL∕T 2010-2019 高压无功补偿装置继电保护配置及整定技术规范

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ICS29.240K45备案号:63143-2018中华人民共和国电力行业标准DL/T2010—2019高压无功补偿装置继电保护配置及整定技术规范Technicalspecificationforprotectionconfigurationandsettingofhigh-voltagevarcompensator2019-06-04发布2019-10-01实施国家能源局发布DL/T2010—2019I目次前言··························································································································································II1范围·······························································································································································12规范性引用文件···········································································································································13术语、定义和缩写·······································································································································14总则·······························································································································································25SVC继电保护配置原则································································································································36SVC继电保护整定原则································································································································47STATCOM继电保护配置原则·····················································································································58STATCOM继电保护整定原则·····················································································································69连接变压器继电保护配置原则····················································································································710连接变压器继电保护整定原则··················································································································7附录A(资料性附录)高压静止无功补偿装置及静止同步补偿装置基本原理································9DL/T2010—2019II前言本标准按照GB/T1.1—2009给出的规则制定。本标准由中国电力企业联合会提出。本标准由电力行业继电保护标准化技术委员会归口。本标准的起草单位:国家电网公司西北分部、国网甘肃电力有限公司、广东电网有限责任公司、广州供电局有限公司、西安交通大学、广东电网公司东莞供电局、中国电建集团西北勘测设计研究院有限公司、国网陕西电力公司检修公司、中国电力科学研究院有限公司、南京南瑞继保电气有限公司、中电普瑞科技有限公司、北京四方继保自动化股份有限公司、国网浙江省电力公司电力科学研究院。本标准主要起草人:张健康、粟小华、赵毅、胡勇、邓旭阳、高强、焦在滨、王建华、奚瑜、李珂、詹荣荣、吴小丹、李涛、刘树、柯人观。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)。DL/T2010—20191高压无功补偿装置继电保护配置及整定技术规范1范围本标准规定了高压静止无功补偿装置(以下简称“SVC”)与静止同步补偿装置(以下简称“STATCOM”)继电保护配置及整定技术原则。本标准适用于接入35kV及以上电压等级输电系统和配电系统的SVC与STATCOM,其他电压等级可参照执行。本标准中SVC以晶闸管控制电抗器型为例,STATCOM以链式为例,其他结构类型可参照执行。每个高压无功补偿装置工程均有其特殊性,应针对具体工程条件和要求使用本标准,必要时应做相应的补充。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(包括所有的修改单)适用于本文件。GB/T2900.1电工术语基本术语GB/T2900.17电工术语量度继电器GB/T2900.49电工术语电力系统保护GB/T14285继电保护和安全自动装置技术规程GB/T20298静止无功补偿装置(SVC)功能特性DL/T478继电保护和安全自动装置通用技术条件DL/T770变压器保护装置通用技术条件DL/T1010.1-2006高压静止无功补偿装置第1部分系统设计DL/T1010.3高压静止无功补偿装置第3部分控制系统DL/T1193-2012柔性输电术语DL/T1215.3链式静止同步补偿器第3部分:控制保护监测系统NB/T42043-2014高压静止同步补偿装置3术语、定义及缩写3.1术语和定义GB/T2900.1、GB/T2900.17、GB/T2900.49界定的以及下列术语和定义适用于本文件。3.1.1静止无功补偿装置staticvarcompensator由静止元件构成的并联可控无功功率补偿装置,通过改变其容性或(和)感性等效阻抗来调节输出,以维持或控制电力系统的特定参数(典型参数是电压、无功功率)。[DL/T1010.1-2006,定义3.1]DL/T2010—201923.1.2静止同步补偿装置staticsynchronouscompensator静止无功发生装置staticvargenerator一种由并联接入系统的电压源换流器构成,其输出的容性或感性无功电流连续可调且在可运行系统电压范围内与系统电压无关的无功功率补偿装置。静止同步补偿装置也称静止无功发生装置。[DL/T1193-2012,定义4.1.2,有修改]3.1.3晶闸管控制电抗器thyristorcontrolledreactor由晶闸管控制的并联电抗器,通过控制晶闸管阀的导通角使其等效感抗连续变化。[DL/T1010.1-2006,定义3.1]3.1.4链式静止同步补偿装置chain-circuitSTATCOM多电平静止同步补偿装置的一种,其换流器采用链式(H桥级联)电压源换流器。[DL/T1193-2012定义4.3.3]3.1.5连接电抗器interfacereactor与换流器及交流系统相连接,实现换流器与电网功率交换的电抗器。[NB/T42043-2014定义3.9]3.1.6连接变压器interfacetransformer与SVC/STATCOM及交流系统相连接,实现SVC/STATCOM与电网功率交换的变压器。3.1.7滤波电容器filter/fixedcapacitor由电容器和电抗器(有时还有电阻器)适当组合而成的并联装置,兼有无功补偿、滤波和调压功能。[DL/T1010.1-2006,定义3.5]3.1.8无功补偿装置高低电压穿越highandlowvoltageridethroughofvarcompensator当外部故障或扰动引起无功补偿装置电源进线电压升高或降低时,在规定的电压变动范围和时间间隔内,无功补偿装置能够保证不脱网连续运行。3.2缩写CT:电流互感器(currenttransformer)PT:电压互感器(potentialtransformer)SVC:静止无功补偿装置(staticvarcompensator)STATCOM:静止同步补偿装置(staticsynchronouscompensator)TCR:晶闸管控制电抗器(thyristorcontrolledreactor)FC:滤波电容器(filter/fixedcapacitor)4总则4.1本标准中SVC与STATCOM的基本原理参见附录A。4.2SVC与STATCOM继电保护配置及整定应与电网运行需求相协调。4.3规划设计阶段应做好一、二次设备选型的协调,充分考虑继电保护的适应性,避免出现特殊接线DL/T2010—20193方式造成继电保护配置及整定难度的增加。4.4在高低电压穿越过程中,SVC与STATCOM应维持并网运行,继电保护不能误动作。应用于风电接入、光伏接入、直流落点等有特殊需求场所的SVC与STATCOM,继电保护应能满足系统运行要求。4.5遵循“强化主保护,优化后备保护”的原则进行保护配置及整定。4.6继电保护对SVC与STATCOM的适应性应优先通过装置自身原理及算法实现。同时,应结合运行特点对保护进行合理正确整定。4.7保护装置的定值设置应满足保护功能的要求,尽可能做到简单、易整定。4.8SVC与STATCOM的继电保护应与控制系统相对独立。4.9SVC与STATCOM阀控系统保护功能及性能应符合GB/T20298、DL/T1010.3、DL/T1215.3、NB/T42043要求。5SVC继电保护配置原则5.1一般规定5.1.1保护配置应满足可靠性、选择性、灵敏性和速动性的要求,具有独立性、完整性、成套性,符合GB/T14285、DL/T478要求。5.1.2110kV及以下电压等级SVC可配置一套电气量保护,220kV及以上电压等级或有其他特殊要求的SVC按双重化原则配置两套电气量保护。5.1.3应采用主后一体的微机型保护装置,保护装置应能反应被保护设备的各种故障及异常状态。5.1.4控制部分的保护应由其控制器完成。5.1.5装置中不同种类的保护功能应能够方便地投入和退出。5.1.6保护定值采用二次值,定值整定范围应能满足工程需要,保护定值应能从装置面板或监控后台输入。5.1.7电气量保护配置包括但不限于:TCR支路角外电流保护、TCR支路角内电流保护、FC支路电流保护、FC支路电压保护等。5.2TCR支路角外电流保护5.2.1配置两段式过流保护作为TCR支路引线相间短路的保护。5.2.2过流保护电流取自角外靠近母线侧CT,采用基波电流。5.2.3对于低电阻接地系统,还应配置两段式零序电流保护作为接地故障的保护,动作于跳闸。5.3TCR支路角内电流保护5.3.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