| 数字控制系统的自激振荡及其抑制 |
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| 引用本文： | 黄艳秋,高英霞,陈娟.数字控制系统的自激振荡及其抑制[J].吉林工学院学报,2008,29(3). |
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| 作者姓名： | 黄艳秋 高英霞 陈娟 |
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| 作者单位： | [1]长春工业大学电气与电子工程学院,吉林长春130012 [2]吉林省农业工程职业技术学院机电工程系,吉林吉林136100 |
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| 基金项目： | 吉林省科技厅基金资助项目 |
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| 摘 要： | 数字控制系统定位时将产生自激振荡,它对定位精度影响较大,因此必须对其进行抑制.针对实际的数字随动控制系统,提出用等效间隙非线性来描述其定位时非线性特性,且该间隙主要由传感器的滞后效应和控制系统的摩擦死区引起.理论分析与实验表明,双极PWM功率放大器可以有效抑制系统定位时产生的自激振荡.
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| 关 键 词： | 数字控制 自激振荡 抑制 |
Check of the positioning self-oscillation for a digital control system |
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| HUANG Yan-qiu,GAO Ying-xia,CHEN Juan.Check of the positioning self-oscillation for a digital control system[J].Journal of Jilin Institute of Technology,2008,29(3). |
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| Authors: | HUANG Yan-qiu GAO Ying-xia CHEN Juan |
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| Institution: | 1.School of Electrical & Electronic & Engineering;Changchun University of Technology;Changchun 130012;China;2.Department of Mechelectronics;Jilin Professional Technology Institute of Agriculture Engineering;Jilin 136100;China |
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| Abstract: | The positioning self-oscillation will be generated in the digital control system which influences the positioning precision seriously,its compensation is very important.It is pointed out that the positioning nonlinear can be described as the clearance which is caused by the delay of the sensor and the dead zone of the friction.Both the theory and experiments show that the double-pole PWM driver can improve the positioning precision for the digital control system. |
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| Keywords: | digital system self-oscillation check |
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