Wind Power Dispatch Margin for Flexible Energy and Reserve Scheduling With Increased Wind Generation


With the significant penetration of wind generation, the variability and uncertainty of wind energy poses new challenges to power system operations. In specific, a lot of rapid reserve is needed, that might result in the scarcity of balancing services. With the increasing penetration of renewable generation, it is envisaged that renewable resources will be needed to partake within the system balancing tasks. In this paper, a combined flexible dispatch and reserve scheduling policy is proposed by determining a flexible wind dispatch margin. So as to produce a flexible dispatch margin, wind generators underschedule in the hour-ahead energy market, thus as to carry some expected output for reserves. Additional wind energy is then accessible for mitigating forecast errors and alternative system uncertainties. This paper presents a framework to search out the optimal policy to include the versatile wind dispatch margin into the hour-ahead market. A finite-state Markov chain wind power forecast model, based on spatio-temporal analysis, is used. The presented framework is used to search out the appropriate level of wind dispatch margin. The proposed approach is tested and therefore the wind generation knowledge are used to research the effectiveness of the presented model in coping with forecast errors and achieving a a lot of secure system operation.

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