Design of Battery Charging Protection Circuit Based on Simulink

DOI: https://doi.org/10.62517/jes.202402107

Author(s)

Xingjun Lin, Huarong Wang*, Zihui Xian, Xinglin Huang

Affiliation(s)

Guangdong University of Science and Technology, Dongguan, Guangdong, China *Corresponding Author.

Abstract

With the growth of energy storage demand of electric new energy vehicles, the utilization rate of batteries is becoming higher and higher. Circuit protection is very important in the process of charging and discharging. This paper carries out the design of the relay protection circuit after the rectification and filtering of the power supply, and uses the Simulink simulation software to simulate the normal work of the drive circuit and the instantaneous overcurrent fault. The results show that the simulation value of the output drive signal is close to the theoretical value under normal working conditions. When transient overcurrent fault occurs, the voltage slowly returns to normal voltage after troubleshooting, the output voltage and output current decay more smoothly, and the voltage will not reverse too much to achieve the purpose of overvoltage protection.

Keywords

Electric Vehicle; Storage Battery; Protection Circuit

References

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