Abstract
Under the framework of event triggering, this paper discusses a novel integral sliding mode (ISM) anti-disturbance algorithm for a class of nonlinear systems with mismatched disturbances. For the sake of describing more irregular disturbances, T-S fuzzy disturbance models are imported by choosing different basis functions and the corresponding disturbance observer (DO) is then put forward to realize the estimation of unknown disturbances. By utilizing the trigger threshold condition with the estimation information, both the integral sliding surface (ISS) and the event-triggered ISM controller are designed for compensating mismatched disturbances. It is guaranteed that the state trajectories can reach the ISS within a pre-designed finite time. Moreover, not only the system stability, but also the favorable tracking performance and the boundedness of the minimum trigger interval are simultaneously be achieved. Finally, the simulation results of an A4D aircraft model further embody the effective of designed control algorithm.
Highlights
As we all known, the existence of disturbances has many negative effects to control performance of systems [1], [2]
Based on the above analysis, this paper studies an eventtriggered anti-disturbance control algorithm for a class of MIMO systems by using T-S disturbance modeling and integral sliding mode (ISM) techniques
A novel event-triggered anti-disturbance tracking control algorithm for systems with unknown mismatched disturbances is studied in this paper
Summary
The existence of disturbances has many negative effects to control performance of systems [1], [2]. X. Zhang et al.: Event-Triggered ISM Anti-Disturbance Control for Nonlinear Systems via T-S Disturbance Modeling event-triggered method is discussed to get a balance between the number of the transmitted information and the dynamical performance. By designing the integral nonlinear sliding mode surface, the integral sliding mode (ISM) control can weaken the system chattering and reduce the system error On this basis, an active anti-disturbance control strategy for the vehicle following systems is put forward by using ISM method [41]. By constructing the event trigger condition and integral sliding surface (ISS), a composite event-triggered ISM controller is proposed to successfully offset mismatched disturbances and to avoid unnecessary waste of resources Apart from this, both the output constraint of the controlled system and the boundedness of the minimum trigger interval can be guaranteed simultaneously. The zero and identity matrices are expressed by 0 and I , respectively
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
