Study On Power Supply Capacity Of Distribution Network Containing Distributed Generation

With increas ing of the application of Distributed generation, Volatility and intermittent characteristics of the Distributed generation to Power Supply capacity of distribution network can’t be ignored. At present, scholars have done a lot of research in the traditional distribution of power supply capacity. But the impact of the new energy supply capacity with the distribution network has not yet commenced discussion. Supply capacity as an important indicator of a distribution network, The research is becoming particularly urgent. In this paper, power distribution network with new energy generation capacity has been a lot of research, Focuses on the supply capacity of the index system, Evaluation Method of supply capacity, New energy generation access preferred location and enhance supply capacity by energy storage power.The effects of access to new energy generation capacity of power distribution network is discussed in the research; And aiming at the Distributed generation ’ s intermittent power fluctuations characteristics, established a power supply capability evaluation system, Inspect the contents for each indicator, establishing the calculation method, Lay the foundation for the assessment and optimization of supply capability.Considering the reliability of power supply "N-1" factor, And the line of external relations, Account the proposed energy supply reliability of power distribution networks inc luding grid model; Raised the maximum power grid analys is method of analysis, inc luding The volatility and intermittent consider new energy generation, account the reliability of power supply, Improved the traditional method of repeating trend, This method can evaluate the maximum power within a comprehensive analysis of the period, Using the analytic hierarchy process, to assessment the power supply capacity.the location of New energy generation devices preferred method proposed. not only features of the new energy generation into account, And combined with the power indicator system, using more objective method, Preferably get optimum supply capacity of distribution network.Enhance the capacity for power, research the method including the proposed new energy storage charge and discharge power optimization strategy. Using Multi-layer multi-objective optimization methods, Network-flow constraints, energy storage and power plant operation as constraints, take the maximum power of the more limited rate, the maximum power of the lower limit of the rate and supply volatility into account, Optimizating charging and discharging of the energy storage power system, to upgrade power supply capacity of network with new energy generationFor this research study the new energy distribution network’s power supply capacity. Case analysis shows this study take full account of new energy generation intermittency and volatility characteristics. And the power indicator system, Evaluation Method, A preferred method of access location and energy storage power optimization method’s Effectiveness. Research for this study including new energy power generation with power supply capability provides a new way of thinking...