Full-bridge DC-DC Converter based on Linear Active Disturbance Rejection Control

Authors

  • Xuequan Hua

DOI:

https://doi.org/10.54097/5bkf1z83

Keywords:

Dual Active Bridge DC-DC Converter, Linear Active Disturbance Rejection Control, Robustness

Abstract

Dual Active Bridge (DAB) converter has been a research hotspot in recent years. It is widely used in distributed power generation system, DC microgrid system and power management system. Traditional PI controllers do not perform well in the face of nonlinear loads and external disturbances, so a more advanced control method is needed to improve the stability and performance of the system. In this paper, a control strategy based on active disturbance rejection control (ADRC) is proposed to improve the control performance of full-bridge DC-DC converter. First of all, the small signal mathematical model of full-bridge DC-DC converter is established, and the function relationship between input, output, control quantity and disturbance quantity in the system is obtained. Then, the extended state observer of ADRC core module is designed, and its parameters are adjusted and simulated, compared with the traditional PI controller. The simulation results show that the full-bridge DC-DC converter based on LADRC has faster dynamic response and better disturbance immunity, which can effectively improve the stability and robustness of the system.

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References

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Published

21-01-2025

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Section

Articles

How to Cite

Hua, X. (2025). Full-bridge DC-DC Converter based on Linear Active Disturbance Rejection Control. Frontiers in Computing and Intelligent Systems, 11(1), 46-52. https://doi.org/10.54097/5bkf1z83