Abstract
With the development of energy storage technology, energy storage technology began to be put into the peak regulation of power grid. But at present, the lack of scientific evaluation means for coordinated peak regulation ability of energy storage and regional power grid (ESRPG) hinders the large-scale participation of energy storage devices in peak regulation. To solve this problem, this paper proposes an evaluation system and evaluation method to comprehensively and accurately evaluate the coordinated peak regulation ability of ESRPG. Firstly, an evaluation system for the coordinated peak regulation ability of ESRPG is established from the perspective of energy storage and generator units. The indicator system comprehensively considers the impact of technology, economy, reliability, and other factors on the peak regulation ability of the ESRPG. At the same time, a multi-level evaluation method composed of an analytic hierarchy process and weighted rank sum ration is proposed to comprehensively evaluate the proposed indicator system. This method not only takes subjective and objective factors into account, but also eliminates the interference of dimensions, orders of magnitude and other factors on the evaluation results. Finally, the evaluation indicator system and evaluation method are applied to the simulation scene for evaluation, and the results show that the evaluation system and method make up for the shortcomings of the current mainstream methods and effectively evaluate the peak shaving capability.
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