The Research On The Distribution Reliability And Risk Management Of Dalian

With the development of society, people’s life is improving, Power customer requirents on power supply reliability is getting higher and higher. Power interruption will not only cause economic loss of social production,but also affect people’s lives order. The reliability of istribution system is an important indicator to measure the ability of continuous power supply of power system. In order to provide our customers with the electric power supply is more safe and reliable, and make the power supply of the social and economic benefits to achieve the optimal, research on the reliability of distribution system is very necessary.This article mainly aims at lOkV distribution network reliability research, clear network reliability evaluation theory and application value. Summarize the basic concept of distribution system reliability and the reliability of the related terms, and get the important indexes for evaluation of the reliability analysis, such as main user average power outage time, power supply reliability, users average power failure frequency and average power failure time and other methods of calculation of reliability index as well as the corresponding.This thesis studied the operational reliability of lOkV distribution grid,various constraints, statistical indicators and evaluation indicators have been analysized, the reliability of system reliability index and the corresponding calculation method. Through years of historical data and the information of the distribution network, dalian lOkV the operation reliability of network, mainly the line segmentation and line contact condition is analyzed, and through the analysis of the distribution network structure, study the effect of network structure on the reliability of medium voltage distribution network in accordance with the" distribution. According to the actual data and historical data, aiming at Dalian city distribution network reliability analysis, and the overall work of the distribution, basic management, operation management and technical conditions, weak links of the distribution network is put forward, aimed at these deficiencies put forward a reasonable and effective measures to improve the reliability of the power grid, to improve the reliability and efficiency of the entire distribution network.Consultation2012by Dalian lOkV distribution network reliability weaknesses were analyzed using distribution system reliability analysis and algorithms, comprehensive and meticulous management and evaluation of scientific and flexible network planning, to improve the comprehensive and standardized project management. Improve the operation and management level of Dalian lOkV distribution network to ensure the safe and stable operation of the distribution network of the economy.