| 基于电流模式的Buck变换器的模糊控制 |
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| 引用本文： | 张化光,路文赜,刘秀翀. 基于电流模式的Buck变换器的模糊控制[J]. 控制工程, 2009, 16(4) |
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| 作者姓名： | 张化光 路文赜 刘秀翀 |
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| 作者单位： | 东北大学,电气自动化研究所,辽宁,沈阳,110004;东北大学,电气自动化研究所,辽宁,沈阳,110004;东北大学,电气自动化研究所,辽宁,沈阳,110004 |
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| 基金项目： | 国家高技术研究发展基金 |
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| 摘 要： | 针对Buck变换器采用比常用的小信号建模方法更为精确的大信号建模方法对系统进行分析,进而提出一种基于电流模式的模糊控制方法.该方法将模糊控制方法与电流控制方法相结合来构造双闭环控制系统,并对所采用的模糊控制器进行非线性小信号分析.在系统中将电感电流引入电流环,同时将模糊器与积分器的并联作为电压环.该方法与传统控制方法进行仿真比较,仿真结果表明,所提出的方法十分有效,能极大的提高系统的动、静态性能.
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| 关 键 词： | Buck变换器 电流控制 模糊控制 平均电电路模型 |
Fuzzy Control for Buck Converter Based on Current Mode Control |
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| ZHANG Hua-guang,LU Wen-ze,LIU Xiu-chong. Fuzzy Control for Buck Converter Based on Current Mode Control[J]. Control Engineering of China, 2009, 16(4) |
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| Authors: | ZHANG Hua-guang LU Wen-ze LIU Xiu-chong |
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| Affiliation: | Institute of Electric Automation;Northeastern University;Shenyang 110004;China |
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| Abstract: | A large signal model to analyze the system is used,which is more accurate than averaging small signal model. And then a fuzzy control method based on current mode for Buck converter is proposed. This method combined the current mode control and fuzzy control to implement two-closed-loop system by analyzing the nonlinear small signal characteristics of fuzzy logic controller (FLC). The method inducted the inductor current to form the current loop and paralleled the FLC and integrator to form the voltage loop... |
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| Keywords: | buck converter current mode control fuzzy logic control average circuit model |
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