基于风光功率动态寻优的风光储发电系统智能控制器设计

Design of a Smart Controller for the Integrated Power System Including Wind,Solar and Energy Storage Based on Dynamic Optimization of Wind and Solar Power

大型光伏电站采用MPPT模式并网发电已是常态,但小型离网的风光储发电系统多采用简单的限流、限压模式,能源得不到充分利用,而且,对蓄电池充电和负载供电也做不到精细管理。针对这些问题,文章提出基于实时感知能量平衡分布的动态寻优控制方法,采用PWM控制技术和蓄电池温度补偿管理技术,实现风光能量的动态优化利用和蓄电池充放电的精细化管理。试验证明其运行效果良好,并在内蒙古东部极寒地区无电牧户离网型风光储发电系统中得到应用,具有良好的实用价值和经济社会综合效益。

It is normal for large-scale photovoltaic power stations to adopt MPPT mode,but small off grid power system including wind,solar and energy storage mostly adopt simple current limiting and voltage limiting modes,so the energy resource can't be fully utilized,and there is no fine management for battery charging and load power supply.To solve these problems,a dynamic optimization control method based on real-time perception of energy balance distribution is proposed in this paper.PWM control technology and battery temperature compensation management technology are used to realize the dynamic optimal utilization of wind and solar energy,and the fine management of battery charge and discharge.The test shows that its operation effect is good.It has been applied in the off grid power system including wind,solar and energy storage for non electric herdsmen in the extremely cold area of eastern Inner Mongolia,which has good practical value and comprehensive economic and social benefits.