排序方式: 共有92条查询结果,搜索用时 0 毫秒
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给出了六轴数控包带机HEC-1的设计、实现方法.HEC-1由龙门架、六轴运动系统、电机控制器、线棒形状自动示教系统、自动包带系统及控制计算机组成,可应用于大型发电机的定子线圈绝缘带的包扎.对HEC-1的功能进行了介绍,给出其主要技术指标,并对系统的构成、定子线圈自动示教算法及自动包带方法进行了分析与讨论.在洪家渡水电站20万kW水轮发电机的SF200-30/9500型定子线圈上的包带结果表明,HEC-1的包带效果与国外同等产品相同,比手工包带具有更好的包带精度、速度及重复性. 相似文献
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This paper addresses the H∞ output feedback control problem for discrete-time systems with actuator saturation. Initially, a constrained H∞ output feedback control approach is presented in the framework of linear matrix inequalities (LMI) optimization. Under certain assumptions on the disturbance energy bound, closed-loop H∞ performance is achieved. Furthermore, the moving horizon strategy is applied to an online management of the control performance so that the closed-loop system can satisfy control constraints in the case of unexpected large disturbances. A dissipation constraint is derived to achieve the moving horizon closed-loop system dissipative. Simulation results show that the constrained H∞ controller works effectively under the disturbance assumption and that the moving horizon H∞ controller can trade-off automatically between satisfying control constraints and enhancing performance. 相似文献
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一、问题的提出在工程或试验中,往往要求某一装置的输出变量按予定的规律变化,例如:在目标模拟器中,要求假目标按予先规定的运动轨迹运动;在地震模拟振动台中,要求振动台的运动再现某次地震时地面的实际运动情 相似文献
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This paper addresses the H_∞output feedback control problem for discrete-time systems with actuator saturation. Initially,a constrained H_∞output feedback control approach is presented in the framework of linear matrix inequalities(LMI) optimization.Under certain assumptions on the disturbance energy bound,closed-loop H_∞performance is achieved.Furthermore, the moving horizon strategy is applied to an online management of the control performance so that the closed-loop system can satisfy control constraints in the case of unexpected large disturbances.A dissipation constraint is derived to achieve the moving horizon closed-loop system dissipative.Simulation results show that the constrained H_∞controller works effectively under the disturbance assumption and that the moving horizon H_∞controller can trade-off automatically between satisfying control constraints and enhancing performance. 相似文献
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机器人非线性连续预测控制 总被引:2,自引:0,他引:2
研究了一种机器人非线性连续预测控制方案,其预测模型通过对系统状态进行泰勒级数展开并作适当的截改进来获得,并通过优化性能指标求得控制律。与其他非线性模型预测控制相比,所得到的器具有解析形式,方法简单、计算量小、利用在线应用。仿真结果表明了非线性预测控制器的有效性。 相似文献
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长期以来,陇东油田油气集输系统一直应用多级离心泵进行油气输送,其缺点是离心泵流道易结垢,设备完好率低,泵效低,能耗高,管理难度大。为此,在主要集输干线悦-阜-中管线应用了柱塞泵输油工艺。 相似文献
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