Monthly unit commitment model of power system with integrated wind power

Abstract:

In order to coordinate the generator resources in longer time scales, a monthly unit commitment model of power system with integrated wind power is created. The balanced dispatch mode which can ensure medium-long electric quantity executed smoothly and the energy-saving dispatch mode which can save energy, reduce pollution has been analyzed first, then a unit commitment model coordinating electricity market and energy-saving has been build. In the model, the "pay as bell" and "benchmark price" electricity pricing mechanism has been considered. The model is based on the differential electric quantity which transfers from balanced energy, loaded generators by using the energy-saving priority list, simulated wind power scenarios considering tail-dependence and rank correlation from the previous wind power correlation analysis, and chooses the calculation resolution by thermal generator hot start & warm start characteristic. The calculated example indicates that the model can coordinate the electricity purchase cost and coal consumption under reducing the start-off times of thermal generators.