  Wind generation is traditionally treated as a non-dispatchable resource and
is fully absorbed unless there are security issues. To tackle the operational
reliability issues caused by the volatile and non-dispatchable wind generation,
many dispatch frameworks have been proposed, including robust unit commitment
(RUC) considering wind variation. One of the drawbacks that commonly exist in
those dispatch frameworks is increased demand on flexibility resources and
associated costs. To improve wind dispatchability and reduce flexibility
resource costs, in this paper, we propose a novel RUC model considering
strategic wind generation curtailment (WGC). Strategic WGC can reduce wind
uncertainty and variability and increase the visibility of wind generation
capacity. As a result, the ramping requirement for wind generation will be
reduced and ramp-up capability of wind generation can be increased, leading to
reduced day-ahead operational cost with guaranteed operational reliability
requirement of power systems. The economic benefits also include profits gained
by wind farm by providing ramping-up capacities other auxiliary services. We
also propose a solution algorithm based on the column and constraint generation
(C&CG). Simulations on the IEEE 39-bus system and two larger test systems
demonstrate the effectiveness of the proposed RUC model and efficiency of the
proposed computational methodology.
