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Control of system with large parametric uncertainty using multiple robust controllers and switching

机译:使用多种强大的控制器和切换控制具有大参数不确定性的系统

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In practice, models always have uncertainties due to unavoidable factors. A multiple model robust control method for linear multi-input and multi-output plants with large parametric uncertainty is presented in this paper. The candidate controllers are designed by H-inf control method and by analyzing how model uncertainty influences the error of estimated output, a new estimator and switching index, which can evaluate the system norm of model uncertainty, are proposed. By this way, the control system can be equivalent to a switching system with small uncertainty whose system norm is limited. The robust stability of the closed control system is studied by using small gain theorem. And furthermore simulations have been done on a second order inertial system to validate its effectiveness of this new multiple model robust control method.
机译:在实践中,由于不可避免的因素,模型总是具有不确定性。本文提出了一种用于线性多输入和具有大参数不确定性的多输出设备的多模型鲁棒控制方法。候选控制器由H-INF控制方法设计,并通过分析模型不确定性如何影响估计输出的误差,新的估算器和切换指数,​​可以评估模型不确定性的系统规范。通过这种方式,控制系统可以等同于具有小不确定性的交换系统,其系统范围是有限的。通过使用小增益定理研究了闭合控制系统的鲁棒稳定性。此外,已经在二阶惯性系统上进行了模拟,以验证这种新的多模型鲁棒控制方法的有效性。

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