Research Of 10MWp Photovoltaic Power Generation Integration Scheme Design

Energy is the development of the world and the most basic motive force of economic growth, with the continuous development and progress of modern society, people’s dependence on energy and demand is increasing. The earth’s fossil resources have been reduced, in order to achieve sustainable development, and then people turn their attention to the development and utilization of new energy. Photovoltaic power generation has become the mainstream direction of development domestic and abroad with its economic, technical and environmental factors. But because the PV generation is random and intermittent, it will bring certain influence to the security and stability of the grid. How to reduce these adverse effects and choose a good access scheme, is the main purpose of this research and analysis.First of all, this paper taking Wulateqianqi Xiexing photovoltaic power station access as research object, through current situation and future development of power grid planning analysis, the position and role of the photovoltaic power generation system is located. Combined with the situation of local power grid of the PV projects, through selecting the level of access feasible placement and access system, five sets of initial access system solutions are put forward respectively and flow calculation of the five sets solutions are carried out. Through comparison of technology and economic conditions of the five schemes,one access recommended scheme is determined and its transient stability calculation, short circuit calculation and harmonic current allowance calculation are put out and it can provide a theoretical basis for the photovoltaic equipment selection and operation. Finally electric secondary system schemes such as the system communication access schemes are designed and researched.