Study On The Economic Operation Of 10 KV Distribution Network In Yanshou County

With the continuous consumption of energy,the contradiction between rapid economic growth is gradually intensifying,which is undoubtedly a serious challenge for the future economy and society.From the perspective of interests,considering long-term development,it is necessary to build our country into a resource conservation In an environment-friendly society,the most effective way is to ensure the economic operation of the power grid and achieve the purpose of energy saving and loss reduction.The 10 kV distribution network is the most widely used and the largest part of my country’s distribution network.Its economic operation plays a decisive role in the energy saving and loss reduction of the entire distribution network.But there are also many prob lems,such as too weak grid structure,serious aging of equipment,insufficient reactive power,and backward operation and management of the power grid.Therefore,it is very necessary for the power industry to carry out the economic operation of 10 kV distribution network.In this paper,the economic operation of the transformer and distribution lines as well as the reactive power optimization of the 10 kV distribution network are the three main aspects to achieve the economic operation of the 10 kV distribution network.Firstly,analyze the economic operation and power consumption distribution of the transformer.In the separate operation,the economic operation state is classified and discussed,divided into two cases of the same capacity and different capacities,and the corresponding critical loads are solved separately.By building a model of disaggregated operation through simulation software,the power situation of the transformer when it is in disaggregated operation can be visualised,thus verifying the feasibility of this operation method.In-depth analysis of the economic situation of a single transformer independent operation and two transformers in parallel operation mode,and its economics are compared.Secondly,the large number of distribution lines in the 10 kV distribution network,serious aging,so it will produce huge power loss,this paper mainly from the upgrading of lines,economic selection of cross-section area and power supply radius,two aspects to reduce the loss,and ultimately achieve economic operation,and combines practical examples to verify their correctness.Finally,a new reactive power optimisation model is developed for the 10 kV distribution network.The model is based on the objective function of comprehensive economic efficiency,which includes not only the cost of network losses but also the input cost of reactive power compensators,which is closer to the actual project.Then,on this basis,the genetic algorithm is used to calculate and solve the above reactive power optimization model.Verify its rationality.Through in-depth economic analysis of the three aspects of transformers,lines,and reactive power compensation in the distribution network,it plays a role in optimizing the economic operation of the 10 kV distribution network,and ultimately achieves the purpose of reducing losses,saving energy and protecting the environment.