Study On Some Problems Of Photovoltaic Greenhouse

Along with the development of photovoltaic technology is mature, the price of PV modulesand decline, lack of energy, the deterioration of the environment makes the photovoltaic usage andscope expanded. With the improvement of people’s life, the new agriculture gradually into people’slives. Solar greenhouse can save land resource, namely to crop growth characteristics andproduction of electricity, no pollution, gradually into people’s lives. Solar greenhouse generationcan replenish energy lighting, ventilation, heating, but also in the summer temperature is high, theshading effect, reducing the greenhouse temperature, the protection of animals and plants. It notonly can provide the required illumination, temperature of the greenhouse plants and animals, butalso can improve the greenhouse microclimate and improving the quality of greenhouse gas. Inthis paper, using the ECOTECT software, establish no battery plate, a line of dense, two rows ofclosely, three rows, four rows, close close two rows, four rows of chessboard chessboard solargreenhouse, and the simulation of each shelf temperature, coefficient of lighting, illumination,light hours, the following conclusions are obtained:(1) the indoor and outdoor temperature difference is the trend of0-9increased,9-15decreased,15-24increased, contrary to the temperature change trend. Close and chessboard type solargreenhouse, arrangement of the same number of battery pack, close canopy temperature differencebetween inside and outside, more adapted to the requirements of animals and plants and hightemperature, the reason may be due to tight type distribution of battery and the roofs of a spacerelatively closed, heat loss is relatively small.(2) results from the close type, board type battery plate photovoltaic greenhouse shedillumination simulation, cell number row, panels of illuminance on the shed at the end is small,because the roof panels will cause the shade, exposure to the battery plate light reflection, thedecline in the greenhouse shed irradiation greenhouse ground illumination. If planting crops, thanno battery plate more shade. The solar battery plate roof distribution both ways of the samequantity, close to shed bottom than chessboard type light intensity is small, but the rest of theillumination area; roof solar cell number distribution of the same for both ways, but close to theshelf bottom than chessboard type light intensity is small, but the intensity of illumination the restarea. All of the partition corresponding light crop planting.(3) were from the close type, board type battery plate photovoltaic greenhouse shed light hoursof the simulation results, the battery plate light shed bottom as almost8hours. If planting crops,planting, crop distribution; roof solar cell slice two ways the same number of cells on the bottom,shed sunshine hours almost as much as the rest, only slightly larger than the area of the chessboardclosely; they are two ways the same roof distribution line number of solar battery, battery the shedat the bottom of the sunshine hours almost as much as the rest, only slightly larger than the area ofthe chessboard closely.(4) analysis of coefficient of lighting and light intensity is similar.