随着深圳市东北部地区)龙岗区经济的快速发展,现有电网的供电能力己经 不能满足当地用户的用电要求,急需增加新的变电站,此外,目前该地区电网还存 在重复变压等问题,也需要借助新变电站的建设对现有电网进行梳理,11OkV龙岗 输变电工程项目可行性研究工作在此背景下展开 根据广东省电力公司的批复,龙岗11OKV输变电工程项目初步设定了电压等级! 主变远景设计规模及本期规模本文依据相关项目可行性标准及电网规定对系统方 案!系统通信!系统二次方案及变电所所址!输电线路径及经济效益多方面进行了 详细的可行性论证,明确了配置原则 本可行性研究重点突出了系统方案!变电站选址!进出线路径及相关工程的设 想确定经过现场勘查和测算,本文对三个满足基本条件的变电站站址进行多方面 论证,最终根据经济最优原则选出了推荐站址在此基础上,本文通过环保节能及 系统方案的论证同时给出了出线方案 最后,对110KV输变电工程项目做了详细的经济预算,并进行了社会和经济效 益评估,从而得出了本次研究项目的可行性结论 关键词:可行性研究;系统方案;站址选择;路径选择 )Abstraet硕士报告 Abstract WiththenortheastregionofShenzhenCity一LongGangDistrieteeonomy,5rapidly develoPing,theexistingeaPaeityofPowersuPPlymentcannolongermeetthelocalusers. demandofeleetrieity.从七needtobuildthenewurgentsubstation.Inaddition,there15 alsoPowerProblemaboutrePeatingtransformerand50on.w己needtogridtosortoutthe existingPowerbytheeonstruetionofanewsubstation.50webegantostudythe feasibilityofthe110kVLonggangPowerTransmissionProjeetinthisconteXt# AeeordingtotheGuangdongPowerComPany,5aPProval,wesetthevoltagelevel, themainvariablesizeandcu汀entsizeofthedesignvisionaboutTheLonggang1IOKV transmissionProjeetinitially.ThisartieleabouttheProjeetfeasibility15basedonthe standardsandPowerrequirementsofthesystemProgram,systemeommunication,system andsubstationlocatingtheseeondProgram,varioustransmissionlinePatliandadetailed eeonomiefeasibilitystudy,andaclearPrineiPleoftheeonfiguration15alsoused. ThisstudyhighlightsthefeasibilityofthesystemProgram,substationloeation,inlet andoutletPatllandassoeiatedworktodetermine.Aftersitesurveyingandcaleulating,we detellllinedthreebasieeonditionsofthesubstationtomeetthevariousdemonstration sites.Alsoweeheesethebestsiteforthefinalseleetedwhichwasbasedoneeonomic PrineiPlesrecommended.Onthisbasis,energysavingandenvironmentalProteetion systemwasalsoeonsideredinthisPaper. Finally,wedidtheeeonomiebudgetonthe11OKVtransmissionProjeetindetail,and builtthesoeialandeconomieassessment.50finallyweobtainedthefindingofthis feasibilityaboutthisresearchProject. Keywords:feasibilitystudy;Systemprogram:thesiteselection二pathseleetion; investmentestimation硕士报告H供电局11Ok\:输变电工程项目可行性研究 目录 摘要....................................,.........................................................I Abstract.....................................,................................................11 1绪论........................................,.........................................................1 1.1选题来源及背景.......................,...................................................................1 1.2设计与研究依据.......................,...................................................................2 1.3工程概况...................................................,...................................................3 1.3.1110KV龙翔输变电工程设计包括的内容和范围.......................................3 1.4报告的主要研究内容及结构安排.,...................................................................3 2项目管理及输变电工程项目文献概述...............................................6 2.1项目管理的内容!特点和目标.........................................................................6 2.1.1项目!项目管理及发展...............................................................................6 2.1.2工程项目管理..........................,......,.................................................7 2.2我国工程项目管理的现状..,........................................................................8 2.3输变电工程项目的特点...................................................................................10 2.4H供电局110KV输变电工程项目概述...........................................................11 2.4.1龙岗区电网现状.........................................................................................12 2.4.2建设的必要性...............................................................................,.......13 2.4.3需求预测.....................................................................................................13 2.4.4设计内容及范围.........................................................................................巧 3110KV系统方案..................................................................................16 3.1接入系统方案分析...........................................................................................16 3.2建设规模...........................................................................................................16 3.3系统通信...........................................................................................................16 3.3.1通信网络现状.............................................................................................17 3.3.2通信组织方案.............................................................................................17 3.3.3电力系统调度关系.........,.....................................................................19 3.4系统保护...........................................................................................................19 4变电站站址选择和工程设想..............................................................21 4.1站址选择...........................................................................................................21 4.1.1地理位置.....................................................................................................21 4.1.2站址技术条件.....................................................,.................................21 4.2工程设想...........................................................................................................26 111 飞硕士报告 4.2.1电气主接线和主要设备选择.....................................................................26 4.2.2电气总平面及竖向布置.............................................................................27 4.2.3电气二次...,.....................,.,.....,....,.....................27 4.2.4建筑规模及结构设想................................................................................28 4.2.5环境保护......................................,........................................................28 4.2.6节能降耗.................................................................................................30 4.2.7其他...,...................................................................................................34 5输电线路路径及工程设想..................................................................35 5.1线路路径选择...................................................................................................35 5.1.1线路概况.....................................................................................................35 5.1.2电缆路径方案.............................................................................................35 5.2工程设想............,........................................................................................35 5.2.1工程概况................................................................................................,.,35 5.2.2电缆敷设方式.........................................................................................36 6投资估算..................................................................................................,....37 6.1编制范围与依据-........................................................................................37 6.1.1编制范围.....................................................................................................37 6.1.2编制依据.....................................................................................................37 6.2主要经济指标评价.............................................