| 磁悬浮系统的模糊自适应PID控制 |
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| 引用本文： | 张静,徐林.磁悬浮系统的模糊自适应PID控制[J].计算机应用,2009,29(Z1). |
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| 作者姓名： | 张静 徐林 |
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| 作者单位： | 哈尔滨理工大学,自动化学院,哈尔滨,150080 |
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| 基金项目： | 国家高技术研究发展计划(863计划)，哈尔滨市培养学科后备带头人基金 |
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| 摘 要： | 针对磁悬浮系统开环不稳定、强烈非线性等特性,结合PID控制和模糊控制的优点,提出一种改进的模糊自适应PID控制方法(IFPID).将微分环节从模糊控制器中剥离出来,只对比例和积分参数进行模糊整定.设计时采用非线性模糊化,利用S-函数建立磁悬浮系统的非线性模型并进行仿真.仿真结果表明,IFPID控制系统的抗干扰和适应参数变化的能力都优于常规PID控制,具有较好的动态特性和稳定性.
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| 关 键 词： | 模糊控制 自适应控制 非线性 磁悬浮 |
Fuzzy adaptive PID control in magnetic levitation system |
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| ZHANG Jing,XU Lin.Fuzzy adaptive PID control in magnetic levitation system[J].journal of Computer Applications,2009,29(Z1). |
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| Authors: | ZHANG Jing XU Lin |
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| Affiliation: | College of Automation;Harbin University of Science and Technology;Harbin Heilongjiang 150080;China |
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| Abstract: | Combining the advantages of PID controller and fuzzy controller,an improved fuzzy adaptive PID controller(IFPID)was proposed according to the characteristics of maglev system,such as open-loop instability and strong nonlinearity.The algorithm of IFPID controller was analyzed and designed theoretically by nonlinear fuzzy mapping.D controller was separated from PID controller which P and I parameters were adapted by fuzzy controller.And the nonlinearity model of maglev system which was programmed by S-functio... |
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| Keywords: | fuzzy control adaptive control nonlinearity magnetic levitation |
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