Study On Power Supply Capacity Of Distribution Network Containting Distributed Generation

Distributed generation in the power system more and more important role, which distributed more widely, but due to the inherent characteristics of distributed power, influence it demonstrated the volatility of the characteristics of the distribution network supply capacity has to be reckoned with, power supply capacity as an important indicator of a distribution network of its research, becomes especially urgent. Currently scholars have done a lot of research in the traditional distribution network capacity, but added the impact of distributed power supply capability of distribution network has not yet commenced after a full discussion. In this paper distribution network containing distributed power supply capacity of a large number of studies, including distribution network for the distribution of power, the impact on the distribution of distributed power supply capacity, distributed power supply capability evaluation method volatility, consider distributed economic supply capability evaluation methods are discussed.By establishing a common distributed power supply node model, the distinction between the different distributed power characteristics, and the establishment of a distribution network of distributed power sources after evaluating the relevant indicators, the power supply capability of distribution network was evaluated. And through the example of distributed power after the access, the effects of different positions, capacity and other factors on the supply capacity of a brief analysis and research, discussed in the end of the access of distributed power supply capability of distribution network resulted in what Impact.For distributed power supply with output power characteristics of uncertainty, so containing distributed power supply capability evaluation of distribution network when it will affect by its characteristics, which requires us to consider in the process of distributed power supply capability evaluation of volatility impact. Article will use Monte Carlo and number theory grid blind uncertain amount of power and other distributed processing, and by the results of the two methods of random variables to estimate the establishment of relevant mathematical indicators to assess the ability of the power supply, while the numerical Example two methods were analyzed.Since the selection of a distributed power access locations rational, reasonable access distributed power capacity, not only can make the network planning is reasonable, can also bring huge economic benefits to the community. This paper discusses the methods of economic evaluation of the grid and the application of for this problem, which describes the computing power capability of the risk function, and the calculation method of the economic power of the power supply. This method enables distribution network security from economic point of view, the use of distributed power supply risk added degree of risk and effective distribution network benefit after for analysis and decision-making attitude added risk, and thus of Distribution Network power supply capacity of the economy.In short, the distribution network containing distributed power supply capacity of the research carried out for the distribution network planning evaluation provides some suggestions.