Preventive Response Strategy for Wind Integrated Power System under High Wind Events

The more frequent occurrences of tropical cyclone events are posing an imminent threat to the future power systems with large share of offshore wind power integrated. The high wind shutdown of wind turbine jeopardize the secure operation of power systems and its repeated cut-out and re-cut-in actions could increase the maintenance cost. In this paper, the hysteresis loop control scheme for single wind turbine is revisited and a piecewise approximation of the wind farm level power ramp is developed to model the cut-out and re-cut-in pattern on wind farm level. In order to minimize the economic loss with limited expected number of cut out/in actions, a preventive response model based on mixed integer linear programming is established to find the optimal power output and reserve preparation considering the re-cut-in control scheme of wind farms, while coping with the forecast error via stochastic design. Finally, by testing on the IEEE RTS-79 system, the effectiveness of the proposed method is demonstrated in the case study.