Design of DC/DC Power Supply Based on Dual Loop Fixed Frequency Control Strategy

被引：1

作者：

Cui, Jiachen ^{[1
]}

Liu, Zongwei ^{[1
]}

Zhang, Jianhua ^{[1
]}

Ma, Yuan ^{[1
]}

机构：

[1] Taiyuan Univ Technol, Shanxi Key Lab Min Elect Equipment & Intelligent, Taiyuan, Peoples R China

来源：

2024 6TH ASIA ENERGY AND ELECTRICAL ENGINEERING SYMPOSIUM, AEEES 2024 | 2024年

关键词：

DC/DC power supply devices; Range voltage input; style; Dual loop fixed frequency control; CONVERTER;

D O I：

10.1109/AEEES61147.2024.10544558

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A Boost-LLC two-stage DC/DC power supply is designed to address the issues of low efficiency, high loss, and poor stability in wide range voltage input of DC/DC power supply devices for electric vehicles. It has the advantages of a Boost converter with a wide voltage regulation range and an LLC resonant converter with high efficiency. Firstly, we propose a main circuit topology for the Boost-LLC cascaded converter, and the working principles of Boost converter and LLC converter are analyzed in detail. Secondly, a dual loop fixed frequency control strategy suitable for the main circuit topology was proposed. Finally, we develop a simulation model in the Matlab/Simulink software to validate the efficacy of the control strategy. The simulation results indicate that the converter can effectively handle a wide range of inputs and maintain stable output voltage.

引用

页码：152 / 156

页数：5

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