Current and voltage sensors for energy storage systems

Energy storage technology mainly refers to the storage of electrical energy. The stored energy can be used as emergency power, or it can be stored when the grid load is low and output energy when the grid is under high load, used for peak shaving and valley filling, reducing grid fluctuations. Energy comes in various forms, including radiation, chemical, gravitational potential energy, electrical potential energy, electricity, high temperature, latent heat, and kinetic energy. Energy storage involves converting forms of energy that are difficult to store into more convenient or economically storable forms. Current (BMS), voltage (total voltage, stack detection, BMS), power factor, cumulative active power, and electrical energy are important parameters for system operation. By empowering the management system with AI + algorithms, intelligent online monitoring, detection, and early warning can be achieved. The system can be iteratively upgraded online to realize real-time calculation and statistics of the energy of the project’s energy storage battery system and user load, as well as basic control.

In the entire energy storage system, the power conversion system is the core component. The power conversion system (PCS), also known as the energy storage inverter, is the execution device for power regulation in the energy storage unit, implementing effective and safe energy storage and discharge management (EMS) under the coordination of the monitoring and scheduling system.

According to the development of the energy storage industry, our company has developed current and voltage sensors with the main functions in the energy storage system:

1. Battery Management (BMS): Effectively monitor the charging and discharging of batteries and the operating status of battery packs online, and perform fault diagnosis analysis through big data analysis.

2. Inverter Control: Monitor the current and voltage on the DC side and AC side, providing data reference for grid connection control.

3. Equipment Overcurrent Monitoring: Can promptly detect overcurrent situations and trigger corresponding protection mechanisms to prevent damage to system components.

4. Power Quality Management: By monitoring the control system, energy can be optimized to ensure maximum conversion and utilization of electrical energy in the energy storage system, improving overall efficiency.