Abstract:
In order to solve the problem of insufficient robustness to typhoon disasters under the large-scale wind power access grid scenario in coastal areas of China, this paper proposes a multi-time scale defensive scheduling strategy for high wind power penetration gird after taking typhoons into account. Firstly, according to the typhoon meteorological data, a model of dispatchable wind power resources and the failure rate of grid components under typhoon disaster is established to generate a grid failure scenario under typhoon disaster. Secondly, the wind power output and failure scenarios under typhoon scenarios are taken into consideration, then the grid loss of load and grid risk indicators are proposed to quantify grid failure loss and probability, and the risk cost of the grid is analyzed. Furthermore, the multi-source grid dispatching resources are classified according to the response speed and energy time-shift characteristics, a multi-source grid multi-time scale preventive control model is constructed with the lowest grid risk cost and operation cost as the objective function, and the model is solved by the improved seagull algorithm. Finally, the IEEE-39 node arithmetic results show that the proposed defensive scheduling strategy can coordinate source-load-side resources and improve the robustness of the grid in the face of typhoon hazards.