Such a system typically includes the following main components:
Compressor: The first step in a compressed air energy storage system is to compress atmospheric air to a higher pressure using a compressor. This typically requires the consumption of a certain amount of energy.
Air receiver: After the compressor compresses the air, it stores the compressed air in the air receiver. The air receiver can store high-pressure air and release the air to generate kinetic energy when needed.
Expander/Turbine: When electricity is needed, the high-pressure air stored in the storage tank is released through the expander or turbine, which drives the generator to rotate and thus generate electricity.
Generator: The air released by the expander drives the generator to work, converting mechanical energy into electrical energy.
Control system: Compressed air energy storage systems typically require equipment such as contactors, controllers, and regulating valves to ensure the safe and stable operation of the system.
Compressed air energy storage power generation systems can release stored energy during peak electricity demand periods, thereby balancing the supply and demand of the power system. Simultaneously, it can also store excess electricity generated from renewable energy sources (such as wind and solar power) for use during peak demand periods, thus improving energy efficiency. This technology has potential importance in energy storage and grid peak shaving.
