How BESS works
1. Energy capture and conversion
BESS captures energy from different energy sources, such as wind, solar, or grid power, and accumulates it. This energy is first converted into direct current (DC) and then stored in batteries. When this energy is needed, it is released from the battery and converted into alternating current (AC) by an inverter or power storage converter (PCS) for use in homes, electric vehicles, or Industrial and commercial facilities.
2. Battery Management System (BMS)
One of the core components of BESS is the battery management system (BMS). BMS is responsible for monitoring and controlling the status of the battery, including the state of charge (SOC) and state of health (SOH), and protecting the battery from hazards such as overcharging, over-discharging, and fire. It also ensures that the battery operates under optimal conditions, thereby extending its life and improving efficiency.
3. Power conversion device
In order to achieve effective storage and release of electrical energy, BESS needs to be equipped with efficient power conversion devices. These devices can convert the DC power in the battery into AC power, or vice versa, to meet the needs of different application scenarios. Common power conversion technologies include bidirectional power conversion topology, which reduces the number of modules required to connect the low-voltage BESS to the corresponding high-voltage DC bus and improves the overall efficiency of the system.
4. Integration and control
BESS is a complex system that integrates multiple hardware and software components. In addition to the above-mentioned batteries and power conversion devices, it also includes local controllers, distribution systems, temperature and fire safety systems, etc. These components are coordinated and controlled by advanced energy management systems (EMS) to achieve optimal energy management and energy saving effects.
Application of BESS
1. Grid stabilization
BESS can balance the supply and demand of the power grid, especially during intermittent power generation of renewable energy sources such as wind and solar. When these renewable energy sources generate too much electricity, BESS can store it and release it during peak demand, thereby avoiding waste and grid overload.
2. Peak power demand management
By storing energy before the peak demand period and releasing it after the peak period, BESS can help reduce the peak load of the power grid, reduce dependence on large power plants, and reduce electricity costs.
3. Storage of renewable energy
BESS can effectively store excess electricity from renewable energy sources such as wind and solar energy, ensuring that these energy sources can continue to supply power even under adverse weather conditions.
4. Emergency backup power
In the event of a power outage, BESS can serve as an emergency backup power source to provide necessary power support for homes, businesses and public facilities, and ensure the normal operation of critical infrastructure.
Conclusion
As an advanced energy storage solution, battery energy storage system (BESS) has diverse control characteristics and rich integration methods. It can not only improve energy utilization efficiency, but also enhance the stability and reliability of the power grid. With the advancement of technology and the reduction of costs, BESS will play an increasingly important role in future energy management and sustainable development.
Inquiry
Online Chat