| With rapid development of the national economy and information technology, as well as the improvement of people's life-quality, the demand for electricity and quality of the power has been requirement more. As one part of the whole power system, distribution system is the most close to customers, whose power supply reliability directly reflects the overall level of the power industry, and so it pays more attention by the power supply departments. For a long time, it's also committed to the direction of research for power academics and experts, the purpose of which is given much safer and more reliable power supply to power customers, and then, that will achieve the best economic and social benefits. At present, our country focuses on assessment of the algorithm for research of power supply reliability, but the method of which didn't get the due attention. Along with the end of "11th five-year" period for electric power planning, power supply and demand contradiction get some degree of relief, with power supply reliability to a higher level in the planning and rebuilding area. Facing to the imminent "12th five-year" electric power planning, each power department should make good ready, because the level of power supply reliability will have higher requirement.This paper is based on《Planning of Distribution Network in JinXian county at "12th five-year " and vision in 2020 to 2030》in JiangXi province, which contains "theoretical research and practical application. It firstly introduces operation characteristics of 10kV distribution network, mainly analyzes the influence factors and the content of reliability evaluation index for 10kV distribution network. Then, practical grid in JinXian county is combined in this paper. The method called improved particle swarm optimization is used to JinXian 10kV prototype system to determine the reasonable position of the switch. At the mean time, it uses a kind of algorithm, called Failure Mode and Effect Analysis (FMEA), based on improved block equivalent about the reliability of 10kVdistribution system to optimize the reliability index forⅠline of Binhu in JinXian county, which is to find out the key index of the network. A new 110kV substation will be built in load concentrated area in order to adapt to the development future of JinXin. Finally, aim at the common the problem of the low 10kV power supply reliability in our county, it puts forward the comprehensive measures and can be use to provide a reference for improving the reliability of 10kV distribution network in county. |
PDF Full Text Request