| BUCK变换器状态空间平均法建模与闭环仿真 |
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| 引用本文： | 孙路,陆亭华,赵继敏. BUCK变换器状态空间平均法建模与闭环仿真[J]. 电气自动化, 2014, 0(4): 1-3 |
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| 作者姓名： | 孙路 陆亭华 赵继敏 |
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| 作者单位： | 上海交通大学电子信息与电气工程学院,上海200240 |
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| 摘 要： | DC-DC变换器进行建模和仿真,对实际电路的设计调试有一定的指导意义。运用状态空间平均法建立Buck变换器CCM模式下的模型,并对交流小信号模型进行一定分析。设计了反馈控制回路,借助MATLAB仿真工具,建立开环和闭环系统的状态空间及电路仿真模型。通过对仿真结果的分析,可以得出状态空间平均法建立的模型与实际电路模型在动态性能及稳态输出方面基本相符,对于变换器理论分析等工作有较大参考意义。
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| 关 键 词： | DC-DC变换器 小信号模型 状态空间平均法 建模 闭环控制 MATLAB |
Modeling and Closed-loop Simulation of Buck Converter in the State Space Average Method |
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| SUN Lu,LU Ting-hua,ZHAO Ji-min. Modeling and Closed-loop Simulation of Buck Converter in the State Space Average Method[J]. Electrical Automation, 2014, 0(4): 1-3 |
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| Authors: | SUN Lu LU Ting-hua ZHAO Ji-min |
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| Affiliation: | (School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China) |
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| Abstract: | The modeling and simulation of DC-DC converter contributes some guidance to the design and debugging of actual circuitry. In this paper, a model of Buck converter in CCM mode is established in the state space average method, and the small AC signal model is analyzed to some extent. Then, a feedback control loop is designed to establish a status space and circuitry simulation model of the open and closed system by means of MATLAB simulation tool. As shown in the analysis of simulation results, the rood established in the state space average method and the actual circuitry model are basically consistent in the respect of dynamic performance and steady-state output, which benefits the theoretical analysis of converters. |
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| Keywords: | DC-DC converter small signal model state space average method modeling closed-loop control MATLAB |
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