A stochastic unit commitment policy for wind power uncertainty integrating corrective actions

Due to its natural variability and limited predictability, wind generation compared with other energy resources involves additional uncertainties that lead to challenges to current system planning and operation practices. This paper presents a novel stochastic unit commitment policy, named CORE, to incorporate wind power uncertainty explicitly. The main contribution is the integration of typical intraday operator decisions into the day-ahead scheduling process by relaxing a subset of the non-anticipativity constraints. Fast start unit commitment as well as switching operation modes of combined cycle gas turbines are discussed in detail. The proposal is intended to guide ISO intraday decisions. Numerical results indicate that CORE policy weights better probability of occurrence, increasing market planning efficiency by reducing expected operating costs.