Study On The Developed Strategy For 35kV Voltage Level In The South Zhejiang

Power distribution network of southern Zhejiang province,like Lishui has self char acteristics.This article study on and propose the developed strategy for 35 k V voltage l evel for the South Zhejiang.First,according to the environment for social and economic development of Zheji ang,this paper carried out a study on the development course and future demand of 35 kV voltages network.Then,according to the typical scene of network of contry,establish a model of 18 node and small hydropower resources,use matlab programming for voltage bias of node,analyze and calculation results,then propose a reasonable power supply radius with voltage offset as constraints.Third,take the power supply radius as constraints,the composite cost within the full life-cycle of the planning scheme as the objective functions,establish a model to compare the 110 kV and 35 kV in the economy under the conditions of different load density of power-supply areas.Finally,based on the above analysis,propse different developed strategy for 35 kV voltage level,to different load density of power-supply areas.