| Agricultural photovoltaic power generation system is not only an innovative development form of agricultural, but also a new model of photovoltaic power generation system construction. Both the development of green energy and pollution-free cultivation of vegetables meet the requirements of social development. Therefore, it is of great significance to research the combination of photovoltaic and plastic greenhouses. The regional analysis, the design of photovoltaic power generation system, the combined design of agricultural photovoltaic, and the economic analysis of agricultural photovoltaic power generation system are carried on respectively in this paper, which are researched in the 20 MWp agricultural photovoltaic power generation system.The project area is the ideal place to designed agricultural photovoltaic power generation system, because of the rich solar energy resources: The analysis of meteorological conditions can optimize the selection of equipment and the related design technology, which can minimize the negative impact of the agricultural-photovoltaic coupling photovoltaic power generation system concerning meteorological factors. By geology study showed that the terrain of project area is little ups and downs, and relatively stable, where is a suitable construction for agricultural-photovoltaic coupling photovoltaic power generation projects.Select the280 Wp polycrystalline PV modules, 16 combiner box, and 500 kW inverter; PV modules installation angle is 40 ° and towards the south; The results of electrical design of PV system is: 20 MWp photovoltaic power generation system through an inverter boost up to 10 kV, 10 kV voltage level to bring together 2-way set-Line access 220 kV booster station; combiner box use a connection means of 16 entry and 1 exit directly fixed to the PV module stents.Combination of the small to medium greenhouses and photovoltaic power generation system is the designed form in this paper: During the period of project operations in 25 years, the total generating capacity is 737,915,000 kWh, the average annual generation capacity is 29,516,600 kWh, the use effectively hours are 1494 h. The Economic analysis showed that the construction investment in agricultural-photovoltaics slightly higher than ordinary PV under the same conditions, grid electricity is slightly less than ordinary photovoltaic. However, the agricultural photovoltaic power generation system are better than the ordinary photovoltaic project regarding payback period, the return rate of investment and the net present value. |
