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The performance of synchronous reluctance motor (SynRM) degrades due to chaos when its systemic parameters fall into a certain area. To control the undesirable chaos in SynRM, a passive control law is presented in this paper, which transforms the chaotic SynRM into an equivalent passive system. It is proved that the equivalent system can be asymptotically stabilized at the set equilibrium point, namely, chaos in SynRM can be controlled. Moreover, in order to eliminate the influence of undeterministic parameters, an adaptive law is introduced into the designed controller. Computer simulation results show that the proposed controller is very effective and robust against the uncertainties in systemic parameters. The present study may help to maintain the secure operation of industrial servo drive system. 相似文献
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ADAPTIVE REGULATION OF HIGH ORDER NONHOLONOMIC SYSTEMS 总被引:2,自引:0,他引:2
The problem of adaptive regulation of a class of high-order parametric non holonomic systems in chained-form was discussed. Using adding a power integrator technique and state scaling with discontinuous projection technique, a discontinuous adaptive dynamic controller was constructed. The controller guarantees the estimated value of unknown parameter is in the prescribed extent. 相似文献
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罗贵明 《数学物理学报(A辑)》1995,15(4):383-393
本文讨论了含未建模动态随机系统的鲁棒性,采用修改的LS算法构造出系统的适应跟踪控制器,证明了闭环系统是全局稳定的,并且参数估计误差和适应跟踪误差分别为O(ε^2)和O(σ)+O(ε)。 相似文献
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集值系统的辨识与适应控制 总被引:3,自引:0,他引:3
研究集值系统的辨识与适应控制,这是在随着网络化和信息化发展的过程中遇到的新兴热点问题.集值系统有着广泛的实际应用背景,但其研究才刚刚起步,主要原因是其辨识和控制的可用信息非常少,只是系统输出是否属于某个集合,从而使得已有方法无法适用.总结了近年来关于集值系统的研究工作:在辨识方面,从不同的系统结构、不同的噪声情况和不同的集值情形等方面进行了深入的研究.针对性地提出了参数解耦、比例满秩输入设计、联合可辨识、经验分布函数、在线递推等有效的辨识和控制方法,得到了一系列重要结果;在适应控制方面,实现了一类集值增益系统的适应跟踪控制.所得成果从正面回答了集值系统研究的核心科学问题:即使利用极为粗糙的集值信息,仍然可以精确地估计和控制系统,而且可以构造渐近最优的算法. 相似文献
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曹显兵 《数学的实践与认识》2003,33(7):119-122
利用最小二乘 ( LS)和加权最小二乘 ( WLS)为线性 ARX系统和能被线性函数控制的非线性 ARX系统分别设计了适应控制器 ,并且证明了闭环系统是全局稳定的 . 相似文献