Finite‐time event‐triggered bumpless transfer control for switched systems

Abstract

This study centers on the issue of finite‐time event‐triggered bumpless transfer (BT) control of switched systems. The aim is to suppress the undesirable control jumps at both switching and triggering time, and guarantee the finite‐time stability of switched systems. First, the property of BT is described from its original intention. Then, by co‐design of an improved switching function, an event‐triggered strategy combined with a series of controllers to achieve this objective. Also, the Zeno behavior is excluded. Further, a criterion to guarantee the BT property and the finite‐time stability under event‐triggered mechanism is established. Finally, a turbofan engine control system is taken as an example to testify the validity of the presented control scheme.

Adaptive event‐triggered control for strict‐feedback systems With time‐varying parameters

“…where k 1 > 0, and 𝜔 1 = 𝜙 1 is defined in (5), and v 1 (x 1 , θ, δ𝜃 ) is a nonlinear damping term to be designed in (36). Substituting ( 12) and ( 13) into (11), yields…”

“…Unlike traditional periodic time-triggered control, event-triggered control only updates the control signal when the triggering conditions are violated, which indicates that communication and computational resources can be used more efficiently. [1][2][3][4][5] Due to these advantages, the event-triggered control has garnered significant attention in recent years, leading to the successful development of numerous event-triggering algorithms, [6][7][8][9][10][11][12] and its application to various real-world problems has also been observed. [13][14][15] It is well established that adaptive control, endowed with online estimation/learning capabilities through identification/compensation mechanisms, is highly effective in dealing with unknown parameters and improving system performance.…”

“…Unlike traditional periodic time‐triggered control, event‐triggered control only updates the control signal when the triggering conditions are violated, which indicates that communication and computational resources can be used more efficiently 1–5 . Due to these advantages, the event‐triggered control has garnered significant attention in recent years, leading to the successful development of numerous event‐triggering algorithms, 6–12 and its application to various real‐world problems has also been observed 13–15 …”

Almost output regulation for turbofan switched systems under multi‐source disturbances and time delay

“…Recently, a large number of studies have been reported on modeling and identification methods for turbofan systems, such as small perturbation model, 2 linear parameter varying (LPV) model, 3 equilibrium manifold expansion (EME) model 4 and so on. Based on these elegant results, various advanced and effective control schemes have been applied to the turbofan systems 5‐7 . In recent years, the control performance of turbofan systems has also attracted more and more attention from many researchers, which has become an important research topic in aviation field.…”

“…Based on these elegant results, various advanced and effective control schemes have been applied to the turbofan systems. [5][6][7] In recent years, the control performance of turbofan systems has also attracted more and more attention from many researchers, which has become an important research topic in aviation field.…”