Analysis And Application Of Distributed Generation Substation

Distributed power comes into people’s field of vision for the traditional oil and coal resources increasingly large consumption gradually, because of its environmental protection concept and there are growing concerns about air pollution problems, such as, its application is developing constantly.In recent years, China’s heavily promoted photovoltaic power generation, as a kind of distributed energy, occupies a very important position, and the application range is wide, and it has a larger advantage in engineering construction cycle and difficulty,which would be more convenient than other ways of new energy.In this paper, the distributed power into the power grid, the impact on the system, from the aspects of relay protection, power quality, etc are analyzed and studied. To the situation of photovoltaic application in practical engineering acceptance and specific principle analysis.Analysis of the distributed power grid of the possible adverse effects, such as islanding.Studied the basic conditions for running some of the photovoltaic power generation, the analysis of solar energy resources, how to reasonable use of natural resources.Through by a photovoltaic system is studied, and the solar cells, and operation principle of the inverter, the inverter and the system interconnection corresponding relay protection principle and configuration of problem, and further, given the relay protection setting principle, a typical distribution network feeder automation solution. Combination of preventing islanding situation at the same time, analyzed the specific examples of application, the corresponding introduced for engineering applications.As photovoltaic inverter system is described in detail, discusses the main circuit of operation mode, also for the inverter control application process are analyzed.