强激光与粒子束, 2019, 31 (2): 025001, 网络出版: 2019-04-02
基于AC-Link串联谐振的Buck-Boost变换器控制算法
Control algorithm of Buck-Boost converter based on AC-Link series resonant
高频交流链接技术 串联谐振 状态平面分析法 Buck-Boost变换器 HF AC-Link series resonant state plane analysis Buck-Boost converter
摘要
介绍了一种基于AC-Link串联谐振的Buck-Boost变换器拓扑结构, 用状态平面分析法对串联谐振电路在Buck模式和Boost模式下工作过程进行分析。该方法相比于传统的基波等效分析法具有直接、精确和求解简单的特点。给出了详细的推导过程, 提出了一种控制算法。建立了Matlab/Simulink仿真模型, 仿真结果表明, 该控制算法能够实现Buck和Boost的功能, 能够得到稳定的输出电压, 输入电流谐波含量低的特点, 可以实现变换器在较宽的范围内调节输出电压。
Abstract
This paper introduces a topology structure of Buck-Boost converter based on AC-Link series resonant. The state-plane analysis method is used to analyze the working process of series resonant circuit in Buck mode and Boost mode. This method is relatively direct, accurate and simple compared with the simple basic wave equal effect analysis method. A detailed derivation is given and a control algorithm is proposed. The simulation model of Matlab/Simulink is set up. The simulation results show that the control algorithm can realize the function of Buck and Boost, and low current harmonic content. And the converter can adjust the output voltage in a wide range.
罗集睿, 王庆峰, 张政权, 刘庆想, 何长鑫, 周勃. 基于AC-Link串联谐振的Buck-Boost变换器控制算法[J]. 强激光与粒子束, 2019, 31(2): 025001. Luo Jirui, Wang Qingfeng, Zhang Zhengquan, Liu Qingxiang, He Changxin, Zhou Bo. Control algorithm of Buck-Boost converter based on AC-Link series resonant[J]. High Power Laser and Particle Beams, 2019, 31(2): 025001.