Research On Programs Of The Main Electrical Connection Of Fossil-Power Plant To UHV Power System

In recent years, with the rapid growth of the national economic construction, China’s special high-voltage power grid, accelerating the pace of development. In response to the national coal electricity integration, take the comprehensive development of energy and sustainable development path, the large power plant is necessary to advance access to special high-voltage power grid technical preparation, so as to effectively reduce the blood link, reduced the electrical wiring distance, save the project and the land investment, is conducive to give full play to the technological advantages, the construction of special high-voltage power grid strong, very important to accelerate the optimal allocation and intensive development of resource of our country energy base has. At the same time, in line with the national energy development strategy, the formation of coal circular economy chain, local two times large-scale implementation of coal conversion. Long distance and variable coal for power transmission, and realize the comprehensive utilization of resources, the formation of the western region of China, large coal electricity integrative base, to ensure energy security, economical utilization, achieve the benefit balance between the electricity, coal, is the set of economic benefits, social benefits, ecological benefits in one of the engineering.This paper simply introduces the UHV substation power grid and Inner Mongolia power grid in Duolun County of Xilinguole Meng UHV substation grid and large thermal power plant power system present situation, the necessity of power plant of UHV power grid is analyzed. Focus on the access in Duolun County of Xilinguole Meng 1000kV substation power grid of 2* 660MW unit of Shenhua Shengli Energy Co. Ltd. scheme, based on the analysis of several alternatives demonstration, combined with the reliability, economy, stability and other aspects, to the best wiring type is determined, and the corresponding main wiring scheme is designed, provide technical reference for the design of the main electrical connection scheme of the UHV power grid power plant.