Energy storage systems primarily consist of four major components: energy storage units, energy conversion units, control systems, and auxiliary systems. The energy storage unit, a core component, includes batteries, supercapacitors, or flywheels, storing electrical energy. Energy conversion units, such as inverters and rectifiers, are responsible for converting and regulating electrical energy. The control system monitors and manages the energy storage system to ensure its safe and efficient operation. Auxiliary systems, including cooling and fire protection systems, ensure the stability and safety of the energy storage system. Energy storage systems are widely used in power peak regulation, renewable energy grid integration, and microgrids, offering advantages such as improved energy efficiency and enhanced grid stability.