An Optimization Method for Unit Commitment to Promote Wind Power Accommodation

Wind power has been promoted to mitigate the energy crisis worldwide. However, owing to the chaotic nature of atmospheric movement, wind power generation always exhibits nonlinear and non-stationary uncertainties. Designing an energy storage system for dispatch of a wind farm is an effective integration solution. This paper presents a framework for integrating the stochastic unit commitment, energy storage, dispatch formulations that account for wind power uncertainty. Generation cost and the fluctuation of load are proposed as multi-objective functions with the constraint functions. Numerical results on three cases including thermal generators, wind farm and energy storage and comparisons with results obtained using state-of-art optimization software, show that can be solved most efficiently and the energy storage device improves the flexibility of system operation.

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