Pressurized water energy storage system and method based on retired large-scale thermal power generation power station hydraulic equipment

Abstract

The invention provides a pressurized water energy storage system and method based on retired large-scale thermal power generation power station hydraulic equipment. The pressurized water energy storage system based on the retired large-scale thermal power generation power station hydraulic equipment comprises a power distribution network, at least one group of energy storage systems, and a power generation system, wherein the energy storage systems are used for converting the abundant electric quantity of the power distribution network; each energy storage system comprises an electric water feeding pump, a water storage tank and a storage device; the electric energy output end of the power distribution network is connected with the electric water feeding pumps; water inlets of the electric water feeding pumps are connected with the water storage tanks; water outlets of the electric water feeding pumps are connected with the storage device for storing high-pressure water; and the power generation system is used for generating power by utilizing the high-pressure water in the energy storage systems and outputting the power to the power distribution network. According to the pressurized water energy storage system and method based on the retired large-scale thermal power generation power station hydraulic equipment provided by the invention, the retired existing large-scale thermal power generation power station hydraulic equipment is effectively utilized; and the related capital construction and equipment costs are greatly saved.

Description

technical field [0001] The invention belongs to the technical field of thermal power generation and energy storage, and in particular relates to a pressurized water energy storage system and method based on hydraulic equipment of decommissioned large thermal power stations. Background technique [0002] Energy issues have always been a key issue of concern to countries around the world. Since the reform and opening up, my country’s demand for energy and power has increased. As a stable, mature, and large-scale base-load power supply unit, my country has successively built a large number of large-scale thermal power Power stations have made an indelible contribution to the rapid development of my country's economy. In recent years, with the substantial improvement of my country's science and technology, industrial strength and economic level, the energy system is developing towards high-efficiency and clean energy, and large-scale thermal power stations are developing towards ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a pressurized water energy storage system and method based on hydraulic equipment of decommissioned large-scale thermal power plants, which solves the problems of high construction cost and high site selection conditions in the prior art, and at the same time The disadvantage of low installed capacity of energy storage

Images