| 基于性能的直流电机系统未知推力波动的自适应补偿控制 |
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| 引用本文： | 沈陆娟,蔡建平. 基于性能的直流电机系统未知推力波动的自适应补偿控制[J]. 数学的实践与认识, 2013, 43(1) |
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| 作者姓名： | 沈陆娟 蔡建平 |
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| 作者单位： | 浙江水利水电专科学校 基础部,浙江杭州,310018 |
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| 基金项目： | 浙江省自然科学基金,校科研项目 |
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| 摘 要： | 针对一类直流电机系统,设计基于性能的未知推力波动的自适应补偿控制器.由于推力波动中含有非线性化的未知参数,因此无法利用常规的自适应方法,通过直接估计这些参数对其影响进行补偿.根据未知推力波动的结构特性,基于Lipshitz条件引入推力波动项的放大技术,设计其内部非线性化未知参数的自适应估计律,精确补偿其影响,从而避免了简单的把波动看作未知扰动所造成的系统性能的损失.有别于现有模型,在模型变换中并未忽略微小等效电感的影响,使得系统模型更具一般性.仿真结果表明该自适应控制器可有效补偿推力波动的影响,实现对指令信号的高精度快速跟踪且具有较强的抗干扰性和鲁棒性.
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| 关 键 词： | 直流电机 推力波动 自适应控制 非线性参数化系统 |
Adaptive Compensation of Unknown Force Ripple for DC Motor Systems |
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| SHEN Lu-juan , CAI Jian-ping. Adaptive Compensation of Unknown Force Ripple for DC Motor Systems[J]. Mathematics in Practice and Theory, 2013, 43(1) |
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| Authors: | SHEN Lu-juan CAI Jian-ping |
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| Abstract: | An adaptive controller is proposed for a class of DC motor systems with unknown force ripple.Based on the mathematical model of ripple force,the adaptive update laws are designed by using inequality amplification and Lipshitz technology.The possible loss of performance caused by looking unknown force ripple as disturbance can be avoided by our controller.We also considered the affection of small inductance comprehensively in the system model.Simulation results verify the effectiveness of the control law. |
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| Keywords: | DC motor force ripple adaptive control nonlinearly parameterized systems |
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