Optimal allocation of mixed microgrid capacity for wind-hydrogen-storage in a certain area of Northeast China

Northeast China is complex and diverse, with perennial low temp. For the purpose of allocating the capacity of microgrid reasonably in Northeast China and enhance the power supply reliability of microgrid system in Northeast China, this paper takes a place in Northeast China as the study object. According to the characteristics of Northeast China, an optimal allocation model of wind hydrogen storage microgrid capacity with using surplus wind power to produce hydrogen and equipped with battery energy storage device is advised. Considering the real-time impact of northeast low temp on fan output, power load and battery capacity, the capacity of lower microgrid power supply system in Northeast China is optimized with the goal of minimizing annual average cost and the constraint of annual load power shortage rate. The simulation results show that the wind hydrogen storage system can not only improve the system economy and power supply reliability, but also effectively reduce energy waste.