A Study For Integration Of Photovoltaic Generation To Power Dispatching System

At present, conventional power sources such as coal, oil, natural gas still occupy a large proportion in the energy structure in China. Due to the conventional energy reserves is limited and non-renewable, China is facing a very sharp contradiction between supply and demand of energy, and has to import a lot of energy from abroad every year. Therefore developing clean, environmental protection, renewable and cheap new energy is of vital importance in China's energy development strategy.As a renewable energy, Photovoltaic solar energy technology in recent years has been the development by leaps and bounds. With the declining cost of photovoltaic power generation, large-scale commercial application of photovoltaic power generation has been gradually promoted. However photovoltaic power eventually should access to the grid, photovoltaic power station integrated to dispatching system is still in the phase of preliminary application, the integrated method, the protection configuration and so on is still in the exploratory stage. Because of the uncertainty of the photovoltaic power output to the power grid enterprise dispatching operation mode has brought great impact, so the study of photovoltaic generation integrated to dispatching system is of great significance.In the first place, this paper brings a brief introduction to the research status of photovoltaic solar power, its application and the important achievements. And then focuses on the large capacity photovoltaic power station integrated to power dispatching system in the power flow, power quality, protection configuration and some other aspects. And then the problems and the corresponding solutions brought by photovoltaic power integrated to dispatching system are put forward. Considering the reality of photovoltaic power generation will be integrated into power system in a great scale, this paper discusses the structure of large photovoltaic generation integrated into power dispatching system and the problems in the process of design, implementation and its corresponding countermeasures. Finally, taking Feicheng Anjiazhuang 25 mw agriculture photovoltaic power plant project as example, this paper shows that the design is the coordinated with the dispatching system.