Abstract
With the advancement of the “dual carbon” goal, the proportion of renewable energy in the system has increased significantly. The peak-shaving problem brought about by it has become increasingly significant. As an important flexible power resource, a pumped storage power station has good technical characteristics such as fast response speed, fast ramp rate, and large capacity. However, pumped storage also has problems such as difficult construction, long construction period, and high construction cost. Therefore, it is the current research focus to accurately evaluate the peak-shaving utility of pumped storage for the power system and then rationally plan the construction of pumped storage and fully optimize the utilization of pumped storage. This paper proposes a set of utility evaluation methods for pumping and storage peak regulation through the simulation of the power system and the power market. It can accurately evaluate the utility of pumping storage and peak shaving in various ways to participate in the peak shaving market. Through calculation examples, it can be concluded that when pumping storage participates in the market in an on-demand scheduling mode, the environmental and economic benefits are better than those brought by the load-side response.
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