10kV Distribution Network Reliability Evaluation And Research On Anji

At the end of the power system of lOkV distribution network directly to user provisioning and distribution of electric energy is very important, while contact with the user throughout the power system most closely link their electricity supply reliability is an important indicator to measure the level of the electric power industry as a whole. With the rapid economic development and the increased load, Anji Company long-term power load gap30to40percent, not only to the power supply enterprise resulting in economic losses, but also affected the normal production and living power of the majority of users. Coupled with the construction of the city on the ongoing transformation of the old and developing new work, the power companies need to co-ordinated with the address aging distribution network lines, excessive power supply radius, and poor power quality problems. Power enterprises how to increase supply reliability, improve the economic efficiency of the power supply companies, is an important task in front of Anji Company.Distribution network reliability evaluation is to analysis the power supply reliability quantitatively, not only providing the reference data for distribution network operation, but also the effective data for the optimization and upgrading of the distribution network. To fast and accurate evaluate the reliability of distribution network, selecting a suitable algorithm is very necessary. This paper briefly reviewed the analysis method and common index of distribution network reliability evaluation, combined with the specific operation condition of10kV power distribution network in county AnJi, finally selecting the minimal path method as the solving method in this paper. To take a period of line from10kV power distribution network in county Anji as an example in this paper, through the breadth-first search algorithms looking for the minimal path, and then calculating the reliability index of the components and wiring, after a detailed reliability analysis and calculation, the power distribution network reliability index of each load point and the system are obtained. This method takes the system all components nodes and the influence of the fault line interval into consideration.It's obvious that the process is clear, the calculation result is accurate.Through the reliability evaluation of10kV power distribution network in county Anji, the whole power distribution system reliability level is obtained, and formulating feasible measures after the weak links and improving direction are pointed out, which provide the basis of the planning, construction, management, improving of the distribution network. At the same time, through the distribution network reliability research, it can bring the economic benefit at the different enhance measures, also can increase the system reliability by taking the limited funds maximum.