With the development of new energy, the market size of energy storage systems has grown rapidly, and energy storage systems are becoming increasingly important for modern new energy systems.
The current electrical energy storage is mainly electrochemical energy storage. The battery management system is a device that monitors the status of the energy storage battery. It is mainly for intelligent management and maintenance of each battery unit; to prevent the battery from overcharging and over-discharging, and to extend the battery life. Therefore, the battery management system plays a role in real-time data collection, overcharge and over-discharge protection, optimizing energy scheduling, reducing maintenance costs, and improving the reliability of the energy storage system.
01 The important role of capacitors in energy storage BMS systems
Capacitors are important components in battery management systems. They mainly play the role of filtering, energy storage, voltage balancing and soft starting to prevent the impact of excessive current on other electronic components during startup, thereby extending the service life of the components.
02 Advantages of YMIN capacitors in energy storage BMS systems
YMIN capacitors have the following characteristics in the field of battery management systems:
Strong ability to withstand large ripple currents:
The circuits in the battery management system will generate noise signals of various frequencies, and YMIN capacitors can filter these noises. The stable voltage after filtering is essential for the normal operation of electronic components such as chips and sensors in the battery management system. It can avoid component misoperation or damage caused by voltage fluctuations and improve the reliability and stability of the system.
Large capacity:
When the load in the battery management system requires a large current instantly, the capacitor can quickly release the stored energy to meet the instantaneous demand of the load. In some circuits that require fast response, such as the protection circuit in the battery management system, the energy storage capacitor can ensure that when the power supply voltage drops or is interrupted instantly, it can still provide short-term power support for the key circuit, ensure that the protection circuit can work normally, and promptly cut off the connection between the battery and the load to prevent the battery from being over-discharged or other faults.
Strong overvoltage resistance:
In a battery pack composed of multiple batteries connected in series, due to individual differences in the batteries, the voltage of each battery may be unbalanced. YMIN capacitors can be connected in parallel at both ends of each battery. Through their own charging and discharging characteristics, they can shunt the batteries with higher voltages to reduce their voltages, and charge the batteries with lower voltages to increase their voltages, thereby achieving voltage balance among the batteries in the battery pack.
03 YMIN solid-liquid hybrid capacitor selection recommendation
04 YMIN Liquid Chip Capacitor Selection Recommendation
Advantages: thin, high capacity, low impedance, and high ripple resistance.
05 YMIN Liquid Lead type Capacitor Selection Recommendation
YMIN capacitors have the characteristics of strong ripple current resistance, large capacity, and high voltage resistance, which help battery management systems to better manage charge and discharge, provide protection, and monitor and evaluate functions. This is of great significance for improving the safety, stability, and efficiency of energy storage systems.
Post time: Feb-11-2025