The application of current sensor in energy storage technology is revealed

Current sensors are an indispensable part of energy storage equipment in ensuring system optimization, improving work efficiency, extending battery life, and improving management information systems.

For example, current sensors are used to measure the voltage of key components of energy storage devices such as lithium battery packs, inverters, charging devices, and the input and output operating voltages of the entire system. This helps to understand the operating environment of the system software in real time, ensuring that the operating voltage level is kept in a more efficient range.

The health of a rechargeable battery (SOH) can be assessed indirectly by constantly detecting voltage fluctuations in the battery pack. An abnormal operating voltage can be a sign of battery decay, declining characteristics, or a common failure of a partially charged battery module. Early detection of problems can help prevent system anomalies and extend battery life.

The current sensor can also immediately check for abnormal grid fluctuations in the circuit, such as overvoltage or undervoltage, which will be a sign of an abnormal system. Once an exception occurs, the system software can quickly take effective measures such as triggering alarms or running defense mechanisms to prevent equipment damage or security incidents.

For the stable operation of energy storage equipment, accurate voltage data information is particularly important. Based on the data provided by the CS4112-CS current sensor, the automatic control system can dynamically manage charge and discharge countermeasures, power balance and energy management, improving the overall efficiency and stability of the system.

In general, the current sensor is often integrated with the BMS to provide certain operating voltage data information to help the BMS evaluate and maintain the battery status. When the sensor's observation data is sent to the BMS, it is used to calculate the state of charge (SOC) of the battery, and on this basis, charge and discharge management decisions are made. This is particularly important for ensuring the balance of charge and discharge of lithium battery packs, preventing overcharging and optimizing resource utilization.

Selection of current sensor for energy storage technology

In contrast to current sensors in other electronic devices, current sensors used in energy storage products can detect and monitor operating voltage levels and convert voltage signals into data signals suitable for control and detection. However, in contrast, current sensors in energy storage products are more demanding and even need to reach industrial type.

Current sensors in energy storage devices usually require higher detection accuracy and mechanical stability. Small changes in the charging voltage are likely to reflect the health of the rechargeable battery or system operation, which is particularly important for battery detection and system optimization. In addition, energy storage devices will face a wider range of input voltages, especially in large-scale energy storage applications, which requires a wider dynamic measurement range for current sensors.

Care should also be taken to select pulse signal types that are compatible with the system (such as analog voltage, current derived or digital communication systems such as CAN, Modbus, etc.). To ensure seamless integration with bms systems and other control systems. Low energy sensors make more choices when determining the energy consumption of system software. At the same time, better thermal design is also important for high-power applications.

In addition, durability and environmental adaptability, long-term stability, accuracy, safety factor, and integration with complex information systems are all requirements for energy storage equipment applications.

Now in the market, high-end sensors are still the main body of foreign companies, such as LEM of Switzerland. Taking LEM products as an example, Sensirion offers a wide range of current sensors such as the HV series (high voltage applications) and the LV series (low voltage applications). Using improved Hall effect or fluxgate technology, this controller has a high measurement range, wide measurement range, fast response, and low level of protection, and is suitable for a variety of high voltage and precision measurement applications, including energy storage devices.

Conclusion

Current sensor plays an important role in energy storage equipment. This key component is essential to ensure the battery system, improve performance, and improve economic efficiency. With the continuous development of energy storage technology, the function and accuracy of current sensors will be further improved to meet the increasingly complex business needs.