摘要:本设计的题目是区域电力系统及其联网设计，是关于一个具体的电力系统。其性能好坏直接关系的工业生产和人民生活，所以电力系统及其联网设计，一定要满足三个要求：可靠性、灵活性和经济性。

　　　电力系统是国民经济发展的重要保障，而电力规划是搞好电力建设的一项战略性工作。对本文的区域电力系统及其联网设计来说，我们应根据相关资料，确定新建变电所C、D、E、F与大系统S以及发电厂A、B之间的电力网络接线方式、电力网母线电压等级，发电厂的发电机组及变压器，变电所的变压器，各输电导线的型号；接着，确定发电厂以及变电所的电气主接线设计；最后，对所选方案进行电力系统潮流计算，并最终确定调压方式，计算结果表明达到了设计要求。

　　　电力自从应用于生产以来，已成为现代生产化、生活的主要能源，在工农业、交通运输、国防、科学技术和人民生活等方面都得到了广泛的应用。电力工业的发展水平和电气化程度是衡量一个国家国民经济发展水平的重要标志。

关键词电力系统；联网；接线；潮流计算

Abstract:Since the electricity used in production,it has become a modern production,the main energy of life,industry and agriculture,transportation,defense,science and techonlogy and people’s living conditions have been widely used.The development of electric power industry and the level of electrification is a measure of the level of national economic development an important indicator.

　　　The design is the subject of power system planning and design of a specific power system.Its performance is directly related to the industrial production and people’s lives,and therefore the power system planning and design,must meet three requirements：reliability,flexibility and economy.

　　　The power system guarantees the development of national economy, and power planning and designing is a strategic job in doing well in power construction. In terms of the design of district power system and network mentioned in this paper, we should accord to related materials, determine connecting methods of electric network between new electric power substations C、 D、 E、 F and large system S and power plants A、B, voltage class of the generatrix of transmission network, electric generating sets and transformers of power plant, transformers of electric power substations, model number of every transmission pressure; next, determine the design of main electric wiring of power plants and power substations; and finally, calculate the flow of power system in selected proposal, and ultimately determine the methods of voltage regulation, computing result proving that the requirements of design is achieved.

Keywords Electric power system  Connected to the Internet  Wiring  Power flow calculation