| 自调节PDF控制的一种算法 |
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| 引用本文： | 董纵昊,陈留. 自调节PDF控制的一种算法[J]. 机械, 2002, 29(4): 21-22,42 |
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| 作者姓名： | 董纵昊 陈留 |
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| 作者单位： | 西南交通大学,机械工程学院,四川,成都,610031 |
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| 摘 要： | 介绍了一种在线自调节PDF控制的快速算法。利用短暂的阶跃信号直接激励被控对象，通过响应信号辨识被控对象参数，以之为依据计算出PDF控制的系数，然后立即切换至普通的PDF控制模式。本文以实例形式将按此算法运行的自调节PDF控制系统与普通预置系数的PDF控制系统的响应进行了比较，证明此种算法应用于自调节PDF控制系统的有效性。
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| 关 键 词： | PFD控制 自调节 辨识 伪微分反馈控制 控制算法 |
| 文章编号： | 1006-0316(2002)04-0021-03 |
An algorithm of self-tuning PDF control |
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| DONG Zong hao,CHEN Liu. An algorithm of self-tuning PDF control[J]. Machinery, 2002, 29(4): 21-22,42 |
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| Authors: | DONG Zong hao CHEN Liu |
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| Abstract: | A single algorithm for on-line self-tuning PDF(Pseudo derivative feedback)control is introduced in this paper. The plant parameter with uncertainty can be estimated through identification process under a short-duration step control effort acting directly on the plant so that the PDF control coefficients can be computed by Phelan's or Chen's equations. Then the system will be shifted to ordinary PDF control mode immediately. Numerical examples of self-tuning PDF control running this algorithm are presented to compare the operational performance with the ordinary PDF of preset control coefficients, showing effectiveness of the algorithm when implemented in practical use. |
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| Keywords: | PDF control self-tuning identification |
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