Anti-disturbance attitude quantized control of flexible spacecraft via a triggering and quantization joint dynamic event-triggered mechanism

Chunjie Zhu; Haibin Sun; Linlin Hou

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Anti-disturbance attitude quantized control of flexible spacecraft via a triggering and quantization joint dynamic event-triggered mechanism

机译：Anti-disturbance attitude quantized control of flexible spacecraft via a triggering and quantization joint dynamic event-triggered mechanism

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摘要

This article investigates the problem of dynamic event-triggered anti-disturbance attitude quantized control based on the Takagi-Sugeno fuzzy method for flexible spacecraft, where multiple disturbances and parameter uncertainties are simultaneously considered. First, by employing the Takagi-Sugeno fuzzy model to represent the nonlinear disturbances with additional disturbance, a disturbance observer based on the Takagi-Sugeno fuzzy model is constructed under the unmeasurable premise variables to estimate the unknown nonlinear disturbances. Furthermore, a flexible vibration observer is formatted. Subsequently, a dynamic event-triggered mechanism with the quantization parameter is introduced, which can obtain a trade-off between quantization density and event-triggered frequency on the condition that the system stability is ensured. And an event-triggered anti-disturbance quantized controller is constructed, which can make up for Takagi-Sugeno fuzzy modeling disturbances and reject parameter uncertainties and other bounded disturbances. To guarantee the bound of the closed-loop signals, some sufficient conditions are obtained. At last, the efficiency of the suggested control strategy is illustrated via the simulation results.

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来源
《Aerospace science and technology》 |2023年第5期|108191.1-108191.24|共24页
作者
Chunjie Zhu; Haibin Sun; Linlin Hou;
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作者单位

School of Engineering, Qufu Normal University, Rizhao 276826, Shandong, PR China;

School of Computer, Qufu Normal University, Rizhao 276826, Shandong, PR China;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
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关键词
Flexible spacecraft; T-S fuzzy model; Dynamic event-triggered mechanism; Quantizer; Attitude control;

Anti-disturbance attitude quantized control of flexible spacecraft via a triggering and quantization joint dynamic event-triggered mechanism

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