The Study On The Target Gird Of The North City After The Reconstruction Of The Banshan Power Generation

At present, the northern part of Hangzhou City is mainly powered by 500-KV Renhe Transformer Substation and Banshan Coal-fired Power Plant; in addition, the 110-KV system of Banshan Coal-fired Power Plant is also one of the important power supplies for the northern part of Hangzhou City. To advance energy structure adjustment, improve urban environmental quality and accelerate the construction of "beautiful city", Hangzhou City proposed a construction implementation scheme known as "non-coal-fired area", and planned to shut down 2 coal-fired units of Banshan Power Generating Co., Ltd. by the end of 2015. This paper analyzed the current situation of the electrical power system in Hangzhou region, introduced the originally planned grid structure and power source distribution in 500-KV supply district, and listed the original planning idea of Hangzhou Grid. Then, the paper predicted the balance of electric power and energy in Hangzhou region, and analyzed the consumptive ability of each supply district in case three natural gas units were added in the future. On the basis of load prediction, it analyzed the power supply capacity and operation mode of each 500-KV supply district, adjusted the far-seeing plan of the current target grid frame in North Hangzhou, and verified the feasibility of planning adjustment through electrical calculation. Based on the long-range planning of Hangzhou Grid, it proposed an idea for the adjustment of the grid frame in North Hangzhou after the shutdown of two coal-fired units in Banshan Power Plant during the "Thirteenth Five-Year Plan", and verified the feasibility of grid frame adjustment by electrical calculation.