Study On Distribution Network Power Supply Reliability Planning

Grid power supply reliability is assigned to the user the ability of continuous power supply. It is an important content of power reliability management, directly reflects the power supply system to the user’s power supply ability and the quality of services is a technical equipment level and management level of power supply enterprise integrated embodiment. With the rapid development of economy and the continuous improvement of people’s living standard, power users demand for power supply enterprise has not only confined to meet the load demand growth, on the power supply reliability and power quality has a higher request. In smart grid, rapid development stage, building to improve power supply reliability of power grid planning method research, have power sector is an urgent need to solve the important topic.This paper mainly studied the idea and method of power supply reliability analysis, formed a system of distribution network reliability evaluation and planning methods, with the method of the reliability planning in Yuexiu district of Guangzhou, reliability index promotion effect is obvious, verify the effectiveness of the proposed method and the scientific nature. In this paper, the main research results and the concrete content is as follows:(1) Determine the reliability of distribution network planning study method, and the research steps in detail. First, the system to the analysis of current power supply reliability index and the correlation between various influencing factors, the specific analysis of the influence degree of various factors on the reliability index, build a complete system of influencing factors of system, and in accordance with the present situation of mining reliability weak link; The reliability of the second, formulate scientific and reasonable planning objectives; Can finally put forward at the same time guarantee the reliability of the calculation speed and accuracy evaluation algorithm, based on weak link put forward series of measures to improve reliability, realize the optimal planning optimization of investment benefit than.(2) The research methods of theory in detail, to guide the research method. Including the power supply reliability and analysis to establish the system of influencing factors, research and measures to improve power supply reliability target, power distribution system reliability calculation and evaluation research, reliability planning optimization method.(3) The method of using the reliability of distribution network planning study to reliability in Yuexiu district of Guangzhou city planning, verify that the method is effective and scientific.