The coordinated operation strategy for offshore wind farms with energy storage under typhoon conditions considering the operation safety demand of receiver grid

Abstract

Typhoon is an important factor leading to large-scale off-grid of offshore wind power， which is easy to cause a serious imbalance of supply and demand in the affected power grid， thus affecting the safe and stable operation of the regional power system， especially the coastal power grid with large-scale offshore wind power access. Based on this， this paper first establishes a typhoon mathematical model based on Rankine vortex model for the actual typhoon path. The method to slow down the effect of sudden drop of wind is proposed. Then， taking full account of the operation safety requirements of the receiving end power grid， a collaborative operation strategy of offshore wind farm including energy storage was proposed. Aiming at system safety， stability and operation economy， factors such as air abandonment volume and energy storage regulation capacity were comprehensively considered to optimize the wind abandonment volume of offshore wind power. Finally， a simulation analysis is carried out on the receiving end grid system of offshore wind power with energy storage. The results show that the strategy can minimize the operating cost of offshore wind power farm while ensuring the safety and stability of the receiving end system.

Keywords

• offshore wind farms
• energy storage
• grid operation safety
• typhoon
• coordinated operation