Energy storage power generation system coupled with cross-seasonal heat storage

Abstract

The invention discloses an energy storage power generation system coupled with cross-seasonal heat storage. The energy storage power generation system coupled with cross-seasonal heat storage comprises a power supply, a heat storage water tank and a solar heat collector array, and a controller; the a power supply is used for providing electric energy; the heat storage water tank and the solar heatcollector array are used for collecting solar energy to generate required heat and required hot water; and the controller is used for detecting the current working condition of the energy storage power generation system and controlling the heat storage water tank and the solar heat collector array to work according to the current working condition so as to provide hot water meeting the heating requirement of a user while providing the required heat required by a high-temperature heat pump in the power storage process. The energy storage power generation system coupled with cross-seasonal heatstorage provided by the embodiment of the invention not only can play a role in peak clipping and valley filling of a power grid or obtaining economic benefits by utilizing peak-valley electricity price difference, but also can play a role in regional or urban cross-seasonal heat storage and supply, and has the advantages of long service life of equipment, stable circulation, low manufacturing cost and the like.

Description

technical field [0001] The invention relates to the technical fields of energy storage, inter-seasonal heat storage and heat supply, in particular to an energy storage power generation system coupled with inter-seasonal heat storage. Background technique [0002] related technologies such as figure 1 As shown, a method and system for forward and reverse organic Rankine cycle energy storage, the system is composed of low-pressure and high-pressure working fluid storage tanks coated with thermal insulation materials, and low-temperature and high-temperature phase change materials placed in the low-pressure and high-pressure tanks respectively . The air heat exchanger is placed in the low-pressure tank and communicated with the outside; the upper end of the low-pressure tank is divided into two circuits, one of which is connected with the compressor and the high-pressure tank through the program-controlled valve in turn, and the other is connected with the expander and the hig...

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Problems solved by technology

[0004] However, there are three main disadvantages of this technology. One is that a large amount of organic working fluid is required, and the high-temperature tank is under pressure at the same time, so the cost is high; Third, phase change materials need to be coated, and rely on natural convection and heat conduction for heat transfer, so it is difficult to maximize the power

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