A电网企业变压设备经济运行研究

发布时间：2018-12-18 20:00

【摘要】：经济是人类社会的物质基础,是构建人类社会并维系人类社会运行的必要条件,其具体含义随语言环境的不同而不同,大到一国的国民经济,小到一家的收入支出,有时候用来表示财政状态,有时候又会用去表示生产状态。其实就是研究怎样在既定的条件下实现资源的最优配置,最后达到社会的福利最大化。同样,电网的发展就是需要在资源的优化配置的基础上,用尽可能少的劳动消耗生产出尽可能多的社会所需要的成果。本文立足于A电网公司电网现状,研究了公司变压器经济运行的研究背景、目的和重要意义,总结国内外电网企业变压器经济运行的理论和实践,阐述并分析了变压器功率损耗的计算方法,以及变压器经济运行区间的划分原则和不同运行方式对变压器经济运行的影响。文中针对A电网实际情况,对存在的实际问题进行分析探讨,提出A电网变压器经济运行的研究思路,明确了变压器经济运行的评价方法和分类等级,探讨接线方式、负荷和台数等变压器经济运行的可靠性约束条件,研究变压器配置、方式优化和负载调整等运行措施,并对A电网变压器经济运行计算表进行充分论证和研究。通过数据对A电网220kV电压等级经济运行情况进行分析研究,通过分析各电压等级电网变压器配置、负荷、运行方式情况,探讨变压器能效评价、经济运行区评价,阐明变压器运行方式优化策略和结论。同时,论证了无功优化是降低网损、提高电压质量的一项重要措施,以及对系统安全、经济运行的重要作用。本文以电网实际状况为依托,强调实际工作中的针对性和有效性,期望能为A电网从规划设计、设备选型、方式接线以及变压器运行管理角度给出意见和建议,对提高变压器经济运行水平、提高经济效益提供有益的参考。
[Abstract]:Economy is the material foundation of human society and the necessary condition to construct and maintain the operation of human society. Its specific meaning varies with the language environment, ranging from the national economy of a country to the income and expenditure of a country. Sometimes it is used to denote the state of finance, and sometimes it is used to denote the state of production. In fact, it is to study how to achieve the optimal allocation of resources under the established conditions, and finally to maximize social welfare. In the same way, the development of power grid needs to produce as many social results as possible with as little labor consumption as possible on the basis of optimal allocation of resources. Based on the current situation of A Power Grid Company, this paper studies the research background, purpose and significance of transformer economic operation, and summarizes the theory and practice of transformer economic operation in domestic and foreign power grid enterprises. This paper expounds and analyzes the calculation method of transformer power loss, the principle of dividing the economic operation interval of transformer and the influence of different operation modes on the economic operation of transformer. According to the actual situation of A power network, this paper analyzes and discusses the existing practical problems, puts forward the research ideas of transformer economic operation in A power network, clarifies the evaluation method and classification grade of transformer economic operation, and probes into the connection mode. The reliability constraint conditions of transformer economic operation, such as load and number of stations, are studied. The operation measures such as transformer configuration, mode optimization and load adjustment are studied, and the calculation table of transformer economic operation in A power network is fully demonstrated and studied. Based on the data, the economic operation of 220kV voltage grade in A power network is analyzed. By analyzing the configuration, load and operation mode of each voltage grade transformer, the energy efficiency evaluation of transformer and the evaluation of economic operation area are discussed. The optimization strategy and conclusion of transformer operation mode are expounded. At the same time, it is demonstrated that reactive power optimization is an important measure to reduce network loss and improve voltage quality, as well as an important role for system safety and economic operation. Based on the actual situation of the power network, this paper emphasizes the pertinence and effectiveness of the actual work, and expects to give some opinions and suggestions for A power network from the aspects of planning and design, equipment selection, mode connection and transformer operation management. It provides a useful reference for improving the economic operation level of transformer and increasing economic benefit.
【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】：F273.4;F426.61

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