Neural networks and genetic algorithms-based self-adjustment system for a backstepping controller of an unmanned aerial vehicle

IF 6.2 2区 工程技术 Q1 ENGINEERING, MULTIDISCIPLINARY
Omar Rodríguez-Abreo , Marcos Aviles , Juvenal Rodríguez-Reséndiz , A. García-Cerezo
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Abstract

Backstepping control has been widely used in drones because it considers the dynamic of the system when designing the control law and is robust to parametric uncertainties. However, the typical controller has twelve gains that must be adjusted for optimal results. This process is done manually and with a fixed value, which limits the performance of the controller. This article presents a backstepping intelligent self-tuning system for a multirotor drone. The autotuning is done based on the dynamic vehicle response, optimizing energy consumption, and minimizing its rise time, but without causing an overshoot that consumes unnecessary energy. A backpropagation neural network was trained with a database that considers the dynamic response of the system to achieve this effect. The database was obtained with a metaheuristic algorithm to ensure that only combinations that meet these conditions are used. Several independent tests were carried out to test the system. The results show that the proposed method is adequately adjusted and fulfilled, with the expected dynamic response for 95% of the tests and a dynamic response with minor overshoot and settling time, compared to a PID tuned by genetic algorithm.
基于神经网络和遗传算法的无人机反步控制器自调整系统
由于在设计控制律时考虑了系统的动态性,且对参数不确定性具有较强的鲁棒性,反演控制在无人机中得到了广泛的应用。然而,典型的控制器有12个增益,必须调整以获得最佳结果。这个过程是手动完成的,并且有一个固定的值,这限制了控制器的性能。介绍了一种多旋翼无人机反步智能自整定系统。自动调整是基于车辆的动态响应,优化能耗,并尽量减少其上升时间,但不会导致消耗不必要能量的超调。利用考虑系统动态响应的数据库对反向传播神经网络进行训练,以达到这种效果。数据库是用一种元启发式算法获得的,以确保只使用满足这些条件的组合。进行了几项独立测试来测试该系统。结果表明,与采用遗传算法调优的PID相比,该方法具有较好的调整效果,95%的试验动态响应达到预期值,动态响应超调量较小,稳定时间较短。
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来源期刊
alexandria engineering journal
alexandria engineering journal Engineering-General Engineering
CiteScore
11.20
自引率
4.40%
发文量
1015
审稿时长
43 days
期刊介绍: Alexandria Engineering Journal is an international journal devoted to publishing high quality papers in the field of engineering and applied science. Alexandria Engineering Journal is cited in the Engineering Information Services (EIS) and the Chemical Abstracts (CA). The papers published in Alexandria Engineering Journal are grouped into five sections, according to the following classification: • Mechanical, Production, Marine and Textile Engineering • Electrical Engineering, Computer Science and Nuclear Engineering • Civil and Architecture Engineering • Chemical Engineering and Applied Sciences • Environmental Engineering
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