A Capacity Planning Method for Pumped Storage Power Station Based on Life Cycle Cost Theory

Abstract

The present invention is a capacity planning method for a pumped storage power station based on the whole life cycle cost theory. The life-cycle cost model of the power station; then, under the given scenario of the system load curve and wind power output, use the coordination relationship between the output of thermal power and the output of the pumped storage power station to analyze the impact of the pumped storage power station on the thermal power system and the wind power system. The benefits and self-generated benefits are combined with the life-cycle cost and operation-related constraints to establish the comprehensive benefit model of the pumped storage power station; finally, the particle swarm optimization algorithm is used to solve the comprehensive benefit model of the pumped storage power station. The planned capacity of the pumped storage power station is obtained when the comprehensive benefit is maximized.

Description

technical field [0001] The invention relates to the field of capacity planning of a pumped storage power station in an electric power system, and relates to a method for capacity planning of a pumped storage power station based on the whole life cycle cost theory. Background technique [0002] As wind power and other new energy generation are connected to the grid on a large scale, the flexibility and stability of the system operation are reduced; as a means of transferring electric energy in time, energy storage power supply can make up for the fluctuation of wind power output and the characteristics of anti-peak regulation, which is helpful To reduce wind curtailment, improve wind energy utilization, and ensure stable operation of the power system. Compared with other energy storage power sources, pumped storage power stations have the advantages of relatively mature technology, low unit capacity cost, and large-scale storage. Backup and other functions have a significant...

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Problems solved by technology

[0003] There have been studies on the capacity planning of pumped storage power plants, either from a single economic aspect to study the capacity planning of pumped storage power plants, or from a single reliability aspect to study the capacity planning of pumped storage power plants, and also consider economic It is a method that combines reliability and reliability, but the consideration is not comprehensive; it is of practical significance to consider the cost and income of the pumped storage power station in the whole life cycle from a long-term perspective when planning the pumped storage power station. The benefits brought by the power station access system to wind power and thermal power cannot be ignored

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