Research on Substation Location Based on Entropy Weight and TOPSIS Method
|School||North China Electric Power University|
|Keywords||Transformer substation Location Entropy Weight TOPSIS method|
The city grid is an important infrastructure of the city. The city's economic development is the need for electricity demand growth, the driving force behind the urban network development. Coordinated development of urban network and urban construction, is to ensure grid security and stability of economic operation and healthy development of the urban economy, and improve the quality of people's living conditions. The grid investment proportion in the entire electricity system and the entire power infrastructure, grid planning optimization will give power investment departments to save huge amounts of money. Preferred substation site is an important part in the work of grid planning, load forecasting based on the result of a direct impact on the network structure of the entire power grid construction and running economy. Play a decisive role in the substation location of the merits of the power system network structure. Site selection is correct, the general arrangement is reasonable, investment in infrastructure, construction speed, running economy and security plays a decisive role. Practice has proved that the substation location, you can guarantee a robust power system grid, and not susceptible to the effects of small interfering enabling economic, stable operation, and vice versa, will power construction caused the loss and waste of the power system disturbance there may gradually enlarge, or affect the security of electricity supply. The the substation siting evaluation sort generally expressed in a certain site to be selected, the analysis of the factors affecting the substation site and calculate a target value (such as reliability and running economy) to achieve optimal. Because many factors affect the siting of the substation in the evaluation process, you must first establish a scientific and reasonable the substation siting evaluation index system, followed by reasonable evaluation model. In this paper, in-depth study of a large number of domestic and foreign substation planning and siting literature based on research substation location theory and process; summary of the main factors that affect the substation site: Load distance, conservation of land, topographic and geologic line corridors, traffic transportation, water, avoiding the filthy lot, flood control and drainage, environmental protection, and to adapt to the urban and rural planning, conducive to the construction, considering the development; build substation siting a two-level evaluation index system, involving 18 basic indicators of the six aspects; addition, according to the power grid the substation site planning principles and influencing factors, entropy weight and TOPSIS method to treat selected site evaluation and sorting, the use of the substation theory and entropy weight and TOPSIS evaluation Sort of the Chengde South 220KV substation site. To elect reasonable substation site, improve quality and reliable energy, protect the the Chengde economic development, to ensure the reliability of power supply to achieve the optimal operation of the distribution network to achieve cost-effective.