| 基于灵敏度的不稳定对象PID控制器 |
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| 引用本文： | 王亚刚,许晓鸣.基于灵敏度的不稳定对象PID控制器[J].上海理工大学学报(社会科学版),2009,31(2). |
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| 作者姓名： | 王亚刚 许晓鸣 |
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| 作者单位： | 王亚刚,WANG Ya-gang(上海理工大学,光电信息与计算机工程学院,上海,200093);许晓鸣,XU Xiao-ming(上海理工大学,管理学院,上海,200093)
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| 基金项目： | 上海市自然科学基金，上海市科学技术委员会重点攻关计划项目? |
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| 摘 要： | 针对不稳定对象提出了一种基于灵敏度指标的PID控制器整定方法.首先采用内环反馈结构将不稳定对象转换成一个稳定的模型,然后基于灵敏度指标设计PID控制器,最后通过将两个回路等价为一个反馈回路结构获得给定加权PID控制器参数.仿真结果表明,本PID控制器整定方法可以使不稳定对象闭环系统获得期望的灵敏度,保证了系统的鲁棒性和良好的控制性能.
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| 关 键 词： | PID控制 不稳定对象 灵敏度 鲁棒性 |
PID tuning method for unstable processes based on sensitivity specification |
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| WANG Ya-gang,XU Xiao-ming.PID tuning method for unstable processes based on sensitivity specification[J].Journal of University of Shanghai For Science and Technilogy(Social Science),2009,31(2). |
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| Authors: | WANG Ya-gang XU Xiao-ming |
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| Institution: | 1.School of Optical-Electrical and Computer Engineering;University of Shanghai for Science and Technology;Shanghai 200093;China;2.Business School;Uninersity of Shanghai for Science and Technology;China |
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| Abstract: | The method to tune PID controller was discussed for unstable processes with time delay to meet sensitivity specification.Two feedback loops design technique was adopted,and a tuning method for PID controller with setpoint weighting was provided,which can overcome structural limitation of the typical PID controller for unstable processes.With the proposed good method,a loop transfer function with desired sensitivity specification was obtained,which guarantees both robustness and good performance.Simulation e... |
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| Keywords: | PID control unstable processes sensitivity robustness |
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