基于AC-Link串联谐振的Buck-Boost变换器控制算法
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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。
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.
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.
引文
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[2]张政权,刘庆想,向欣,等.高频整流谐振变换电源[J].强激光与粒子束,2010,22(2):721-724.(Zhang Zhengquan,Liu Qingxiang,Xiang Xin,et al.The research of high-frequency rectifying resonant converter.High Power Laser and Particle Beams,2010,22(2):721-724)
[3]张政权,刘庆想,吴志鹏,等.基于高频交流链接技术的串联谐振变换器[J].强激光与粒子束,2011,23(2):2915-2918.(Zhang Zhengquan,Liu Qingxiang,Wu Zhipeng,et al.Series resonant converter based on HF AC-link technology.High Power Laser and Particle Beams,2011,23(2):2915-2918)
[4]Li W,Liu Q,Zhang Z,et al.High power factor high power density high voltage converter based on AC link[J].IET Power Electronics,2017,10(7):826-834.
[5]Li W,Liu Q,Zhang Z.High power density high voltage power supply based on AC-link[C]//IEEE Society of Instrument and Control Engineers of Japan.2015:848-855.
[6]张政权,刘庆想,李相强,等.高频交流链接技术充电电源[J].强激光与粒子束,2012,24(3):719-722.(Zhang Zhengquan,Liu Qingxiang,Li Xiangqiang,et al.High frequency AC-link capacitor charging power supply.High Power Laser and Particle Beams,2012,24(3):719-722)
[7]Zhao Xiaonan,Zhang Lanhua,Racheal B,et al.A high-efficiency hybrid resonant converter with wide-input regulation for photovoltaic application[J].IEEE Trans Industrial Electronics,2017:3684-3695.
[8]Zhao Xiaonan,Zhang Lanhua,Racheal B,et al.Output capacitance effect on the voltage gain in the high step-up series resonant converter[C]//IEEE 2nd International Future Energy Electronics Conference.2015:1-5.
[9]吴俊娟,何超,孙孝峰,等.串联谐振变换器的最优轨迹控制[J].电力电子技术,2010,44(4):33-35.(Wu Junjuan,He Chao,Sun Xiaofeng,et al.Optimal trajectory control of series resonant converter.Power Electronics,2010,44(4):33-35)
[10]Milan M J,Liu Kwang-hua,Ramesh O,et al.State-plane analysis of quasi-resonant[C]//IEEE Power Electronics Specialists Conference.1985:56-73.