دورية أكاديمية
High Minimum Inter-Execution Time Sigmoid Event-Triggered Control for Spacecraft Attitude Tracking With Actuator Saturation
| العنوان: | High Minimum Inter-Execution Time Sigmoid Event-Triggered Control for Spacecraft Attitude Tracking With Actuator Saturation |
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| المؤلفون: | Xie, Hongyi, Wu, Baolin, Bernelli-Zazzera, Franco |
| المساهمون: | Xie, Hongyi, Wu, Baolin, Bernelli-Zazzera, Franco |
| سنة النشر: | 2023 |
| المجموعة: | RE.PUBLIC@POLIMI - Research Publications at Politecnico di Milano |
| مصطلحات موضوعية: | Attitude tracking, limited communication, network congestion, sigmoid event-triggered mechanism, actuator saturation |
| الوصف: | This paper investigates the attitude tracking problem for spacecraft with limited communication, network congestion, unknown model parameters, actuator saturation, and external disturbances. To alleviate communication load, a novel sigmoid event-Triggered mechanism is proposed with the special ability to guarantee a high minimum inter-execution time to avoid network congestion like package loss or time delay effectively. A neural network-based adaptive control algorithm is designed to deal with unknown model parameters. Besides, the problem of actuator saturation is tackled by introducing a dynamic loop gain function-based approach. System stability is proved by Lyapunov stability analysis and the high minimum inter-event time is substantiated by Zeno Behavior analysis with explanatory remarks. Numerical simulation results also show that a high minimum inter-event time and a high average inter-event time can be realized on the premise of high attitude tracking accuracy. Compared with all the previous studies, the ratio of the minimum inter-execution time to the average minimum inter-execution time has been improved by nearly 10 times with the proposed approach. Note to Practitioners-This paper was motivated by the problem of spacecraft attitude takeover control, but it also applies to other aperiodic discrete-Time control systems. Existing event-Triggered control methods have solved the problem of limited communication for attitude takeover control of spacecraft by reducing the number of times wireless communication is required. This paper proposes a new method for realizing quasi-periodic control with a large time gap between any two consistent control impulses using a hyperbolic tangent function or another sigmoid function in an event-Triggered mechanism. The proposed sigmoid event-Triggered mechanism (ETM) can magnify the event-Triggered threshold dozens of times in a short time to avoid unnecessary frequent triggering without decreasing the precision of control. It's feasible to employ the proposed sigmoid ... |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| العلاقة: | info:eu-repo/semantics/altIdentifier/wos/WOS:000821516400001; volume:20; issue:2; firstpage:1349; lastpage:1363; numberofpages:15; journal:IEEE TRANSACTIONS ON AUTOMATION SCIENCE AND ENGINEERING; http://hdl.handle.net/11311/1217863Test; info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85132690413; https://doi.org/10.1109/TASE.2022.3179896Test |
| DOI: | 10.1109/TASE.2022.3179896 |
| الإتاحة: | https://doi.org/10.1109/TASE.2022.3179896Test http://hdl.handle.net/11311/1217863Test |
| حقوق: | info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.B1F55997 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1109/TASE.2022.3179896 |
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