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The continuous-time generalized predictive control (CGPC) and the quantitative feedback theory (QFT) are used together to control the plant with high uncertainty. QFT conquers the plant uncertainty and stabilizes the system in the inner loop without affecting the nominal performance based on the generalized internal model control (GIMC) structure. CGPC is used to obtain the necessary control performance in the outer loop. According to several given sufficient conditions, the available tuning parameters of CGPC are selected to make the system robustly stable. Finally, an example is given to show how to use this technique; and it is shown that this combined approach gets better performance than if only one of them is used. 相似文献
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把T-S模糊模型辨识非线性对象和预测控制技术相结合,提出一种基于T-S模型的非线性耦合多输入多输出系统快速广义预测控制(GPC)方法,并给出了简化的规则选择方法.该方法在线调节参数少、计算量小.仿真结果表明具有控制平稳、超调小、跟踪快的特点.能够对非线性耦合多变量系统进行良好控制,适合工业过程在线应用. 相似文献
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1 INTRODUCTION Many multi-input and multi-output (MIMO) sys- tems worldwide are regarded as linear invariants, but there are still some difficulties in controlling these systems. The challenges arise from the need to achieve both robust stability and control performance when the plants to be controlled are highly uncer- tain[1―3]. Quantitative feedback theory (QFT) is a fre- quency domain design technique[4], which is perhaps the only known method that deals with highly uncer- tain pla… 相似文献
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超硬磨料钎焊砂轮是实现高效磨削的重要工具。与传统的砂轮相比,钎焊砂轮不仅提升了自身的结合强度,还具有容屑空间大、不易堵塞、磨料利用充分等显著优势。为提高高效磨削用超硬磨料钎焊砂轮的整体性能,综述国内外研究者在超硬磨料钎焊砂轮活性钎料的研制、砂轮地貌及其优化、钎焊工艺方法研究、新型钎焊砂轮的结构设计和钎焊砂轮的精度问题等方面的研究工作。超硬磨料钎焊砂轮精度和成本问题是制约超硬磨料钎焊砂轮在高效磨削中应用发展的瓶颈。研究并解决超硬磨料钎焊砂轮的精度和制造成本的问题,对于促进高效磨削技术的发展具有重要意义。 相似文献
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