变电站智能化改造方案设计与评价研究

发布时间：2018-11-11 12:52

【摘要】：随着我国经济社会的发展,用电需求增加,电网规模逐步扩大,信息化水平越来越高,对电网智能化提出了更高的要求。在这种形势下,国家电网公司适时提出“坚强智能电”的概念,而变电站智能化是电网中重要的环节。在变电站自动化领域中,智能化电气的发展,尤其是智能化开关、光电式互感器等机电一体化设备的出现,以及计算机高速网络的快速发展,为变电站信息的采集、传输和全智能化处理提供了可靠保障。本文从变电站技术问题入手,分析了传统变电站和数字化变电站在一次系统与二次系统存在的问题,从智能变电站的体系架构、智能设备、自动化系统及高级应用、智能辅助设施等技术方面和组织结构与作业流程改造、安全生产改造和规章制度改造等管理方面提出了变电站智能化改造的方案,然后建立包含技术性、经济效益和社会效益三方面的变电站智能化改造方案评价体系,以M变电站为例,使用专家打分法得到的基础数据,通过序关系法、特征值法和集值迭代法等多种赋权方法,进行多层模糊综合评价,结果发现智能变电站可改善变电站的总体水平,提高企业效益,并达到节约土地、节约能源、降低噪音等增加社会效益的目的。最后预期建成后取得的实际效果：大幅提升设备运行可靠性,实现设备操作的自动化,提高资源使用和生产管理效率,使运行更加经济、节能和环保。本文对变电站智能化改造技术方案的研究成果对智能变电站建设及变电站智能化改造具有重要的指导意义,为电网智能化建设奠定了扎实的理论基础。
[Abstract]:With the development of our country's economy and society, the demand for electricity is increasing, the scale of power grid is gradually expanding, and the level of information is becoming higher and higher. In this situation, the State Grid Corporation timely put forward the concept of "strong intelligent electricity", and substation intelligence is an important part of the grid. In the field of substation automation, the development of intelligent electricity, especially the emergence of intelligent switch, photoelectric transformer and other mechatronics equipment, as well as the rapid development of high speed computer network, are for the collection of substation information. Transmission and fully intelligent processing provide a reliable guarantee. Starting with the technical problems of substation, this paper analyzes the problems existing in primary system and secondary system of traditional substation and digital substation, and analyzes the system structure, intelligent equipment, automation system and advanced application of intelligent substation. In technical aspects such as intelligent auxiliary facilities and management aspects such as organizational structure and operation flow transformation, safety production transformation and rules and regulations transformation, the intelligent transformation of substations is put forward, and then the establishment includes technical aspects. The evaluation system of intelligent transformation scheme of substation in three aspects of economic benefit and social benefit is presented. Taking M substation as an example, the basic data obtained by expert scoring method are used, and many weighting methods, such as order relation method, eigenvalue method and set value iterative method, are adopted. The results show that intelligent substation can improve the overall level of substation, improve the efficiency of enterprises, and achieve the purpose of saving land, saving energy, reducing noise and so on, to increase social benefits. Finally, it is expected that the practical effect will be obtained: greatly improving the reliability of the equipment operation, realizing the automation of the equipment operation, improving the efficiency of resource use and production management, making the operation more economical, energy saving and environmental protection. The research results of this paper have important guiding significance for intelligent substation construction and substation intelligent transformation, and lay a solid theoretical foundation for intelligent power grid construction.
【学位授予单位】：华北电力大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM63

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