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毕业设计(论文)题目220kV电网继电保护整定计算与自动装置配置设计系别电力工程系专业班级电气工程及其自动化专业09k6班学生姓名王莹指导教师刘宝志二○一三年六月华北电力大学科技学院本科毕业设计（论文）I220kV电网继电保护整定计算与自动装置配置设计摘要电力系统继电保护用于保护电网及其设备，基于其重要性与技术特点，历来被科研、设计与电网调度运行部门所重视。本文研究的是关于220kV电网的继电保护整定计算及自动装置配置的设计，包括线路继电保护的配置、系统的等值计算、短路电流的计算及自动重合闸配置。整定计算是保障电网安全运行的基础性工作，是继电保护装置及时切除故障，避免恶性事故发生的保障，其研究具有巨大的经济效益和社会效益。合理的整定计算对提高保护运行的性能具有重要作用，保护装置的快速、准确动作要靠整定计算获得精准合理的定值来保证，要满足继电保护和安全自动装置可靠性、选择性、灵敏性、速动性的要求。针对本次电网的结构、参数、运行方式等各方面因素的考虑最终确定保护的类型为：主保护采用纵联差动保护，这种保护不仅能保护线路全长且具有速动性；后备保护采用相间距离保护和针对接地故障的接地距离保护；自动重合闸所采用的是综合重合闸。关键词：继电保护；整定计算；自动装置华北电力大学科技学院本科毕业设计（论文）II220kVPOWERGRIDRELAYPROTECTIONSETTINGCALCULATIONANDDESIGNOFAUTOMATICDEVICECONFIGURATIONAbstractThepowersystemprotectionusedtoprotectnetworkanditsequipment,scientificresearch,design,operationanddispatchingdepartmentsallattachimportanttothepowersystemprotection.Researchinthisarticleisaboutthe220kVpowersystemrelayprotectionsettingcalculationandautomaticdeviceconfiguration,includinglineconfigurationcalculationofequivalentsystemofrelayprotection,shortcircuitcurrentcalculationsandautomaticreclosingconfiguration.Settingcalculationistoremoveaccidenttimelyforprotectiondevicesprotection.Theresearchhasgreateconomicandsocialbenefits.Reasonableprotectionsettingcalculationtoimprovetheoperationalperformancehasanimportantroleinprotectingthedevicefast,accuratetuningactiondependingpreciselycalculatedtoensureareasonablevalue.Itmustmeettheprotectionandsecurityautomaticequipmentreliability,selectivity,sensitivityresistance,andmobilityrequirements.Forthisgridstructure,parameters,andotheraspectsofoperationmodeconsiderationsultimatelydeterminethetypeofprotection:themainprotectionusinglongitudinaldifferentialprotection.Thisprotectionnotonlyprotectsthelinelengthandhasaspeedandmobility;Backupprotectionusingphasedistanceforgroundfaultprotectionandgrounddistanceprotection;automaticreclosingisusedinintegratedreclosing.KeyWords:relayprotection;settingcalculation;automaticdevice华北电力大学科技学院本科毕业设计（论文）目录摘要............................................................................................................................................IAbstract..........................................................................................................................................II1绪论.........................................................................................................................................11.1该课题研究的意义..................................................................................................................11.2继电保护的现状......................................................................................................................11.3该课题的主要任务..................................................................................................................12继电保护原理.............................................................................................................................22.1继电保护的四个特性..............................................................................................................22.2继电保护的基本原理..............................................................................................................33系统各元件参数及运行方式.....................................................................................................43.1系统各元件的标幺值计算.......................................................................................................43.1.1标幺值...................................................................................................................................43.1.2基准值的选择.......................................................................................................................43.1.3参数标幺值的计算...............................................................................................................43.2整定计算运行方式的选择......................................................................................................73.2.1发电机、变压器运行方式选择原则...................................................................................73.2.2变压器中性点接地选择原则...............................................................................................73.2.3线路运行方式选择原则.......................................................................................................73.3本次整定计算运行方式的选择..............................................................................................73.4系统正（负）、零序等值电路................................................................................................83.4.1原始网络的正（负）序网图...............................................................................................83.4.2原始网络的零序网图...........................................................................................................94保护装置配置...........................................................................................................................104.1CSC-103B数字式超高压线路保护装置..............................................................................104.2PSL—603（G）微机继电保护装置..................................................................