| CCM Buck变换器的精确反馈线性化滑模变结构控制 |
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| 引用本文： | 乐江源,谢运祥,冀玉丕,张志.CCM Buck变换器的精确反馈线性化滑模变结构控制[J].华南理工大学学报(自然科学版),2012,40(2):130-135,160. |
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| 作者姓名： | 乐江源 谢运祥 冀玉丕 张志 |
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| 作者单位： | 1. 华南理工大学电力学院,广东广州510640;赣南师范学院物理与电子信息学院,江西赣州341000
2. 华南理工大学电力学院,广东广州,510640 |
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| 基金项目： | 江西省教育厅青年科学基金资助项目(GJJ10237) |
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| 摘 要： | 利用非线性系统的微分几何理论,在CCM Buck变换器仿射非线性模型的基础上,推导出了对应的非线性坐标变换矩阵和状态反馈表达式,得到了Buck变换器的精确反馈线性化模型。在此模型的基础上,选取线性切换函数和指数趋近律,设计了滑模变结构控制器.对比研究表明,所提出的精确反馈线性化滑模变结构控制策略具有良好的动态响应调节和稳态误差调节特性,表现出更强的鲁棒性.
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| 关 键 词： | DC-DC变换器 滑模变结构控制 非线性控制 精确反馈线性化化 |
Sliding-Mode Variable-Structure Control of CCM Buck Converter Based on Exact Feedback Linearization |
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| Le Jiang-yuan
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Xie Yun-xiang
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Ji Yu-pi
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Zhang Zhi.Sliding-Mode Variable-Structure Control of CCM Buck Converter Based on Exact Feedback Linearization[J].Journal of South China University of Technology(Natural Science Edition),2012,40(2):130-135,160. |
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| Authors: | Le Jiang-yuan Xie Yun-xiang Ji Yu-pi Zhang Zhi |
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| Institution: | 1(1.School of Electric Power,South China University of Technology,Guangzhou 510640,Guangdong,China;2.School of Physics and Electronic Information,Gannan Normal University,Ganzhou 341000,Jiangxi,China) |
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| Abstract: | Based on the differential geometry theory and the affine nonlinear model of Buck converters,the corresponding nonlinear coordinate change matrix and nonlinear state variable feedback equations are deduced,and an exact feedback linearization model is then established.The proposed model is used to design a sliding-mode variable-structure controller by selecting suitable linear switching function and exponential reaching law.It is shown by comparison that the proposed sliding-mode variable-structure control method based on exact feedback linearization is of high dynamic response performance,excellent steady-stage error-regulating characteristics and strong robustness. |
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| Keywords: | DC-DC converter sliding-mode variable-structure control nonlinear control exact feedback lineari-zation |
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