Configuration Strategy for Wind-Solar Hybrid Systems

Configuration Strategy for Wind-Solar Hybrid Systems

The core idea behind configuring a wind-solar hybrid system is to leverage the natural temporal complementarity of solar and wind power to create a more stable and reliable overall power supply. At the initial design stage, an objective assessment of the solar and wind resources at the installation site is necessary. This includes understanding the sufficiency of local sunshine and the seasonal and diurnal variations in wind strength. Ideally, the two power sources should complement each other in terms of power generation time; for example, solar power should primarily operate during the day, while wind power should be used at night and on cloudy or rainy days. This smooths the overall power generation curve throughout the day, reducing the need for instantaneous high-power charging and deep discharging of the energy storage batteries.

After determining the resource characteristics, the proportion and capacity of solar and wind power generation need to be rationally allocated. This is not a simple "50/50" approach, but rather optimization based on resource data and electricity consumption habits. In areas with good sunshine and weak winds, solar power should be the primary source, supplemented by wind power; while in areas with strong winds and moderate sunshine, the proportion of wind power generation can be increased. The total installed capacity of both should meet the daily electricity needs of households or loads, with a slight margin.

Finally, the key to the success of the entire system lies in the coordinated configuration of energy storage and intelligent control. The battery capacity needs to be able to cope with the longest possible power shortage period, characterized by consecutive cloudy and windless days, ensuring uninterrupted basic power supply. Simultaneously, a reliable intelligent controller must be provided, automatically managing the energy flow between photovoltaic panels, wind turbines, batteries, and loads, prioritizing the use of readily available clean electricity, and providing scientific charge and discharge protection for the batteries to extend their lifespan. The entire system should be designed and selected as a unified whole to achieve optimal safe, efficient, and economical operation.