Study On The Connection Modes Of 10kV Distribution Network Of Wucheng New Bureau In Jinhua

Connection Mode is the most important section while building power distribution system. In recent years, researchers all over the world exhibit their achievement with intensive study, however we lack the specification for applying connection mode in power distribution system, resulting the misuse of connection mode and unorganized system structure, therefore it is of great significance by choosing the appropriate connection mode and transient mode suitable for local area.Based on the analysis of common connection modes used in power distribution system, this paper gives details of each connection mode, lists their merits and drawbacks, at the end summarizes their distribution scheme.We propose four indicators to evaluate the power distribution system connection mode, reliability, economy capacity and feasibility, along with the computational model for each indicator and parameters involved.Based on subjective weight approach and objective weight approach, we combine the merits from both, come up with comprehensive weight approach. We apply comprehensive weight approach to 10kV distribution system, which is more superior and reasonable. We also model the optimization process and summarize the computation processWe apply our model to Wucheng District, Jinhua City, analyze the current status of it distribution network and predict its development, also, evaluate each mode's attributes to identify an appropriate connection mode. In practice, the line Investment will be converted to a normal line mode power supply unit load investment, so that comparative analysis of economic indicators became more reasonable. At the same time we propose the concept of connection lines group, combine theory and time facilitate the application of our model.Analysis indicates that the introduction of four indicators and application of comprehensive weight approach optimizes lOkV power supply system structure, this model not only produce a more comprehensive method, but also avoid the difficulty in handling multi-objective function, thus it is proved to be a superior and reasonable solution, with immense instructive significance.