Abstract:

In order to explore the feasibility of wind-solar hybrid power generation in the field of facility agriculture, the central arid zone in Ningxia, which is rich in wind-solar resources, was selected as test area. Based on the existing foundation, a kind of solar greenhouse that can be powered by wind-solar hybrid power generation system is designed, and related indicators such as wind power generation and photovoltaic power generation were calculated and analyzed. The research shows that the wind and solar complementarity is good in the central part of Ningxia, which is suitable for the application of wind and solar hybrid power generation system. Under reasonable configuration, the annual power generation capacity of this power generation system is about 15481.3 kW·h, which can meet the routine use of daily greenhouses in spring, summer and autumn. Moreover, there is a surplus in power generation, and grid-connected power generation can be realized if conditions permit. In winter, due to the low temperature at night, the greenhouse needs to be heated by electric heaters, resulting in a sudden increase in power consumption, requiring an external power supply or other heating methods.

Key words: wind-solar hybrid, greenhouse, new energy, Ningxia