Mixed H-2/H-infinity guaranteed cost control for high speed elevator active guide shoe with parametric uncertainties

Chen Chen; Zhang Ruijun; Zhang Qing; Liu Lixin

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Mixed H-2/H-infinity guaranteed cost control for high speed elevator active guide shoe with parametric uncertainties

机译：混合H-2 / H-Infinity保证高速电梯有源导靴的成本控制，具有参数不确定性

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摘要

Aiming at the phenomenon that the elevator car system generates horizontal vibration due to the unevenness of the guide rail and the guide shoe modeling uncertainty caused by friction, wear and spring aging between the rolling guide shoe and the guide rail, a mixed H-2/H-infinity optimal guaranteed cost state feedback control strategy is proposed. Firstly, as the high-speed elevator car system always exist the phenomenon of stiffness and damping uncertainty in the guide shoe, the LFT method is adopted to construct the state space equation of the car system with parameter uncertainty. Secondly, considering the performance indexes of horizontal acceleration at the center of the car floor and the guide shoe vibration displacement system, an optimal guaranteed performance state feedback controller is designed based on the linear convex optimization method, which to minimize H-2 performance index and achieve the specified H-infinity performance level. Thirdly, the free matrix is introduced to reduce the conservatism of the controller. Finally, by comparing the simulation results with other control methods under the same conditions, it is verified that the control strategy can make the car system have better vibration suppression ability, and can significantly improve the ride comfort of the elevator.

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来源
《Mechanics & Industry》 |2020年第5期|共17页
作者
Chen Chen; Zhang Ruijun; Zhang Qing; Liu Lixin;
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作者单位

Shandong Jianzhu Univ Sch Mech &

Elect Engn Jinan Peoples R China;

Shandong Jianzhu Univ Sch Mech &

Elect Engn Jinan Peoples R China;

Shandong Jianzhu Univ Sch Mech &

Elect Engn Jinan Peoples R China;

Shandong Fuji Zhiyu Elevator Co Ltd Dezhou City Peoples R China;

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原文格式 PDF
正文语种 eng
中图分类机械、仪表工业;
关键词
Active guide shoes; parameter uncertainty; LMIs convex optimization; mixed H-2/H-infinity optimal guaranteed cost control; vibration suppression;

机译：主动导鞋;参数不确定度;LMIS凸优化;混合H-2 / H-Infinity最优保证成本控制;振动抑制;

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Mixed H-2/H-infinity guaranteed cost control for high speed elevator active guide shoe with parametric uncertainties

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