Self-triggered fuzzy trajectory tracking control for the stratospheric airship

IF 2.8 3区地球科学 Q2 ASTRONOMY & ASTROPHYSICS

Advances in Space Research Pub Date : 2024-08-15 DOI:10.1016/j.asr.2024.08.036

Xinting Luo , Ming Zhu , Yifei Zhang , Zewei Zheng , Tian Chen

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引用次数: 0

Abstract

A self-triggered trajectory tracking control algorithm, which considers unknown disturbance and actuator saturation, has been studied to address the energy and onboard equipment life limitation problems of stratospheric airships. The controller is based on a backstepping-sliding mode method, utilizing the fuzzy logic systems and auxiliary systems to handle unknown disturbance and actuator saturation, respectively. Based on the continuity of the control law, the self-triggered condition is designed whose paradigm is used to build the fuzzy logic systems. Compared with the existing stratospheric airships event-triggered controller, continuous state detection and calculation are avoided. It is proved that the tracking errors and the weight matrix errors of the fuzzy logic system are uniformly ultimately bounded both at the trigger moment and within the trigger interval. Additionally, Zeno behavior is avoided without imposing additional parameter restrictions. Simulation results demonstrate the effectiveness of the proposed algorithm. Based on execution frequency, the proposed algorithm can conserve 98.3

%

of resources compared to the traditional algorithm and 97.5

%

of resources compared to the event-triggered algorithm.

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平流层飞艇的自触发模糊轨迹跟踪控制

为解决平流层飞艇的能量和机载设备寿命限制问题，研究了一种考虑未知干扰和致动器饱和的自触发轨迹跟踪控制算法。该控制器基于反步进滑模方法，利用模糊逻辑系统和辅助系统分别处理未知扰动和致动器饱和问题。根据控制规律的连续性，设计了自触发条件，其范式用于构建模糊逻辑系统。与现有的平流层飞艇事件触发控制器相比，避免了连续状态检测和计算。实验证明，模糊逻辑系统的跟踪误差和权重矩阵误差在触发时刻和触发区间内都是均匀终极约束的。此外，无需施加额外的参数限制即可避免芝诺行为。仿真结果证明了所提算法的有效性。根据执行频率，与传统算法相比，拟议算法可节省 98.3% 的资源，与事件触发算法相比，可节省 97.5% 的资源。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Advances in Space Research 地学天文-地球科学综合

CiteScore

5.20

自引率

11.50%

发文量

800

审稿时长

5.8 months

期刊介绍： The COSPAR publication Advances in Space Research (ASR) is an open journal covering all areas of space research including: space studies of the Earth''s surface, meteorology, climate, the Earth-Moon system, planets and small bodies of the solar system, upper atmospheres, ionospheres and magnetospheres of the Earth and planets including reference atmospheres, space plasmas in the solar system, astrophysics from space, materials sciences in space, fundamental physics in space, space debris, space weather, Earth observations of space phenomena, etc. NB: Please note that manuscripts related to life sciences as related to space are no more accepted for submission to Advances in Space Research. Such manuscripts should now be submitted to the new COSPAR Journal Life Sciences in Space Research (LSSR). All submissions are reviewed by two scientists in the field. COSPAR is an interdisciplinary scientific organization concerned with the progress of space research on an international scale. Operating under the rules of ICSU, COSPAR ignores political considerations and considers all questions solely from the scientific viewpoint.