白石220KV变电站技术经济分析及综合评价

发布时间：2018-01-15 03:09

本文关键词：白石220KV变电站技术经济分析及综合评价　出处：《华北电力大学》2013年硕士论文　论文类型：学位论文

【摘要】：随着我国厂网分开模式的初步完成,大量资本逐渐涌入发电侧,上大压小政策也陆续出台,电能供应紧张的情况得到了较大缓解。但是,连接发电侧和售电侧的电网建设远远滞后,严重阻碍了电力工业的发展。变电站作为电网的重要基础设施,其高水平建设施工可以有效地改善电网供电能力不足的现状,促进经济发展。白石变电站建设工程具有投资大、工期长、施工难度大、技术复杂以及工程参与方众多等特点,所在地区负荷增长迅速,且主要为煤矿负荷,供电可靠性要求较高,因此在建设初期有必要对项目进行技术经济可行性分析,以提高项目决策的科学性,避免盲目投资。本文采用项目管理理论,运用定量与定性分析相结合,理论与实践相结合的方法对白石220KV变电站新建工程的技术经济可行性及综合可行性进行分析、评价。首先,对研究背景意义及国内外研究现状进行阐述；其次对本文相关的项目管理及可行性分析理论进行综合论述。在此基础上,对白石变电站新建工程的必要性进行分析,并提出了该变电站新建工程的选址和线路建设问题的可行方案,分别从该变电站的电气一次接线、变电二次、系统通信和系统保护进行技术分析,同时对财务净现值、财务内部收益率和投资回收期等方面进行了经济分析；最后,采用层次分析法和模糊综合评价方法的组合模型对白石变电站的综合可行性进行了评价。模糊综合评判结果表明,该项目的具有很好的可行性。该结果将给白石220KV变电站新建工程的投资决策及施工建设提供科学的参考依据,能够有效的避免项目的盲目投资,提高项目的投资收益。同时也对国内其他同类变电站建设项目的顺利开展具有积极的指导和借鉴作用。
[Abstract]:With the initial completion of the separation mode of power plant and power grid in our country, a large amount of capital has gradually poured into the power generation side, and the policy of high pressure and small pressure has been introduced one after another, and the situation of the shortage of power supply has been greatly alleviated. The construction of power grid connecting the generation side and the selling side is lagging far behind, which seriously hinders the development of the power industry. Substation is an important infrastructure of the power network. Its high level construction can effectively improve the current situation of insufficient power supply capacity of power grid and promote economic development. Baishi substation construction project has a large investment, long construction period and difficult construction. Because of the complexity of technology and the large number of project participants, the load in the region is growing rapidly, and the main load is coal mine load, and the reliability of power supply is very high. Therefore, it is necessary to analyze the technical and economic feasibility of the project in the early stage of construction so as to improve the scientific nature of the project decision and avoid blind investment. In this paper, project management theory, quantitative and qualitative analysis, theory and practice are used to analyze the technical and economic feasibility and comprehensive feasibility of the newly built project of Baishi 220KV substation. First of all, the significance of the research background and the status quo of the research at home and abroad are expounded. Secondly, the related project management and feasibility analysis theory are comprehensively discussed. On this basis, the necessity of the new project of Baishi substation is analyzed. And put forward the feasible scheme of location and line construction of the new project of the substation, respectively from the substation electrical primary wiring, substation secondary, system communication and system protection technical analysis. At the same time, the financial net present value, financial internal rate of return and investment recovery period are analyzed. Finally, the comprehensive feasibility of Baishi substation is evaluated by the combination model of analytic hierarchy process and fuzzy comprehensive evaluation method. The result of fuzzy comprehensive evaluation shows that the project has good feasibility, and the result will provide a scientific reference for the investment decision and construction construction of the new project of Baishi 220KV substation. It can effectively avoid the blind investment of the project and improve the investment income of the project. It also has a positive guidance and reference role for the smooth development of other similar substation construction projects in China.
【学位授予单位】：华北电力大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：F424.7;TM63

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