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Working principle of accumulator group

The working principle of an energy storage unit basically depends on the energy storage technology used, including batteries, supercapacitors, compressed air energy storage, etc. The following are the working principles of several common accumulator groups:

Battery accumulator group:

Energy storage stage: When an external power source is available, the battery pack stores electrical energy by charging. This usually involves directing current from an external power source into the battery, causing a chemical reaction between the positive and negative electrodes of the battery, resulting in the battery storing charges.
Release stage: When electrical energy is needed, the stored charge is released through the circuit between the positive and negative electrodes of the battery. At this point, the battery pack can provide power to the connected devices or systems.
Supercapacitor accumulator group:

Energy storage stage: The supercapacitor accumulator group stores energy by separating charges in an electric field between two electrodes. This usually involves transferring charges from the power source to the capacitor, establishing an electric field between the electrodes.
Release stage: When energy needs to be released, charges are released from the electric field of the capacitor, providing current. Supercapacitors can provide high power in a short period of time and are suitable for applications that require instantaneous high currents.
Compressed air accumulator group:

Energy storage stage: In the energy storage stage, air is compressed and stored in the storage tank. This usually involves using an external power source (such as electricity) to drive the compressor, compressing air into the storage tank.
Release stage: When energy needs to be released, the compressed air in the storage tank drives the generator through expansion, thereby converting the stored mechanical energy into electrical energy.
The working principle of the accumulator group can vary depending on specific applications and technical details. In practical applications, control systems are usually responsible for monitoring energy status, managing charging and discharging processes, and ensuring that the energy storage unit works in coordination with other systems to achieve efficient energy storage and release.

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