Novel pumped storage power station multistage market capacity distribution method under power system

The invention discloses a novel pumped storage power station multistage market capacity distribution method under a power system, and the method comprises the steps: firstly, calculating a climbing demand; secondly, constructing a pumped storage unit transaction decision model; thirdly, constructing a main and auxiliary market joint clearing model based on market member quotation; and finally, calculating a capacity allocation result according to the constructed decision-making model and the main and auxiliary market joint clearing model. According to the invention, a model that pumped storage participates in a multi-level market is constructed; on one hand, a transaction decision is made by taking the maximum pumped storage income as a target; and on the other hand, main and auxiliary market joint clearing is carried out with the goal of minimizing the total social cost. Example simulation results prove that the bidding strategy provided by the invention is adopted for pumped storage, the income of auxiliary