The application of NTC temperature sensors in the field of energy storage

As an important component of the modern energy system, the temperature detection work of energy storage stations is of vital importance. Temperature is one of the key factors affecting the safe and stable operation of energy storage stations. Therefore, conducting precise and reliable temperature detection on energy storage stations is a necessary means to ensure the safe and stable operation of the energy system.

There are numerous devices involved inside an energy storage station, such as battery packs, converters, cooling systems, etc. The operational status of each device will have an impact on the stability of the overall system. Once the temperature of the equipment is too high, it may cause equipment failure, performance decline and even safety accidents. Therefore, conducting temperature detection on energy storage stations can promptly identify potential safety hazards, provide timely and accurate fault warnings for operation and maintenance personnel, and thereby prevent or reduce the occurrence of accidents.

1.The principle of energy storage NTC Temperature Sensor

Ntc Temperature sensors are made based on the principle of thermistors, that is, the characteristic that the resistance value changes with temperature. During the operation of the energy storage system, the battery pack generates heat. The Ntc Temperature sensor can monitor the temperature of the battery pack in real time, convert the temperature signal into an electrical signal, and then transmit it to the controller through the circuit to achieve protection and control of the battery pack.

2.The application of NTC temperature sensors in various energy storage modules

Energy storage battery:

The NTC temperature sensor is mainly installed on the surface of the energy storage battery module to monitor the center temperature of the battery module in real time. A battery module is usually equipped with several sensors, which is conducive to comprehensive monitoring of the temperature of the entire battery module. During the charging and discharging process of batteries, heat is generated. Excessively high temperatures can accelerate battery aging, reduce battery life, and even pose safety hazards. When the NTC temperature sensor detects that the battery temperature is too high, the BMS system can appropriately reduce the charging current based on the temperature signal to prevent the battery from being damaged due to overheating.

Inverter:

Power devices in the inverter, such as IGBTs (Insulated Gate Bipolar Diodes), generate a large amount of heat during operation. The NTC thermistor monitors the temperature changes of power devices. When the temperature is too high, the controller will trigger an overheat protection mechanism to prevent the IGBT from being damaged due to overheating.

3.Energy storage NTC temperature sensorproducts

Based on the above explanations, NTC temperature sensors have functions such as temperature monitoring, safety protection, and performance optimization in both energy storage batteries and inverters. The energy storage NTC temperature sensor is recommended to use the ground ring head metal series, which is usually encapsulated with nickel-plated brass material. This sensor features strong stability and high mechanical resistance. Its accuracy can reach ± 1% and ± 2%. The conventional resistance parameters are 10K, 50K, and 100K, and the optional B values include 3435, 3470, 3950.3977, etc.

This type of sensor is mainly installed in energy storage systems by means of a fixed plate. It is fixed and installed on the surface of the object to be measured by screwing or laser welding. This method is often applied to products such as transformers, inverters, energy storage BNS, vehicle charging piles, automotive PDUs, and 0BC systems. If you have other application ends, you can consult in detail. We can customize various ring end sizes according to your needs.

The energy storage NTC temperature sensor plays a crucial role in energy storage systems. It can monitor the temperature of the battery pack in real time and achieve protection and control of the battery pack. In the near future, with the development of energy storage and renewable systems, NTC temperature sensors will play a greater and more extensive role.