Integrated solar energy storage and liquefied air energy storage power generation system

Abstract

This invention relates to the field of energy storage and power generation technology, specifically disclosing a liquefied air energy storage and power generation system integrating solar energy storage. The system includes a solar power generation layer, an energy distribution unit, and a liquefied air energy storage and power generation layer. The solar power generation layer comprises a photovoltaic array, a weather forecasting module, and a lithium battery module. The energy distribution unit employs a three-level logic priority to directly supply solar energy to the compressor unit, with excess energy stored or fed into the grid. The liquefied air energy storage and power generation layer includes units for compression, liquefaction, storage, and expansion power generation. Its innovation lies in the addition of a dual-source (cold and hot) temperature control unit. This unit utilizes the low-temperature air after liquefaction and the waste heat generated during compression to provide precise temperature control for the lithium battery module, ensuring its safe and stable operation. This invention achieves efficient on-site solar energy consumption, cascaded and synergistic utilization of energy within the system, solves the problem of unstable operation of the energy storage module under different environments, and significantly improves the overall economy and reliability of the system.

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