Abstract:
In recent years, the typhoon become a major natural disaster affecting the safe operation of the receiving-end grid in coastal cities. This paper proposes a resilience enhancement strategy for multi-stage collaboration including the prevention stage,resistance-response stage and recovery stage by considering the response characteristics of the receiving-end grid under the typhoon disaster, including load, external power, various units, energy storage, and power transmission channels. The resilience of the grid is quantified by the difference between the actual and ideal operation curves, and the resilience of the urban grid is evaluated.The resilience enhancement model and the ideal aims to minimize the total cost of investment and operation and maximize the grid resilience, and includes three types of measures: power transmission channel reinforcement, unit commitment, and additional restoration teams, covering three phases of grid state changes during typhoon transit. Finally, the validity of the model is verified by selecting the actual receiving-end grid of a Chinese city and combining it with typhoon data from the Tropical Cyclone Center of the China Meteorological Administration.