Adaptive state‐feedback control with sensor failure compensation for asymptotic output tracking

Abstract

This paper addresses a new adaptive output tracking problem in the presence of uncertain plant dynamics and uncertain sensor failures. A new unified nominal state-feedback control law is developed to deal with various sensor failures, which is directly constructed by state sensor outputs. Such a new state-feedback compensation control law is able to ensure the desired plant-model matching properties under different failure patterns. Based on the nominal compensation control design, a new adaptive compensation control scheme is proposed, which guarantees closed-loop signal boundedness and asymptotic output tracking. The new adaptive compensation scheme not only expands the sensor failures types that the system could tolerate but also avoids some signal processing procedures that the traditional fault-tolerant control techniques are forced to encounter. A complete stability analysis and a representative simulation study are conducted to evaluate the effectiveness of the proposed adaptive compensation control scheme.KEYWORDS model reference adaptive control, plant-model output matching, sensor failure compensation, state feedback OverviewEfforts have been devoted to handle the undesired effects on system performance brought by those adverse conditions. In this section, we will first give a brief review of fault-tolerant control, especially a review of techniques dealing with sensor faults and then discuss the research motivation of this paper. 130

Event‐triggered Kalman consensus filter for sensor networks with intermittent observations

“…On the other hand, it is common in practice that observations of sensors are not consecutive, due to network‐induced packet loss, 28 random sensor failure, 29,30 and so forth. And the filtering problems for sensor networks with intermittent observations have attracted many attentions 31‐35 .…”

Adaptive State Feedback Fault-Tolerant Tracking Control for Uncertain Nonlinear Systems with Sensor Failures

“…Compared to adaptive actuator failure compensation schemes, fewer results are available for adaptive sensor failure compensation of linear and nonlinear systems. In [9,10], a general kind of linear time-invariant system with output sensor uncertainties or all state sensor failure are studied via model reference adaptive control (MRAC), respectively. An adaptive state feedback FTC stabilization for parametric strict-feedback nonlinear systems with all state sensor multiplicative failures and unknown control directions are investigated in [11], however, the amounts of adaptive estimations are relatively large due to the unknown state sensor failures and system uncertainties.…”

Reliable H∞ control for 2‐D discrete switched systems with state delays and actuator failures

“…Generally speaking, the reliable control is to design a controller to guarantee the stability of the closed‐loop systems not only when all control components operating properly, but also in the case of some admissible control component failures. Therefore, due to the rising demands of system reliability in many fields, such as aerospace and industrial process, the reliable control problem has been attracted much attention in recent years, and corresponding results have been published in the literature 36‐41 . Though there has been a rich and substantial literature on the reliable control problems, up to now, and to the best of author's knowledge, the reliable control problem for 2‐D discrete switched systems with delays has not been fully considered, only in Reference 42 where the problem of robust reliable control for uncertain 2‐D discrete switched systems with state delays and actuator faults described by the Roesser model has been addressed, and this constitutes another motivation for the present study.…”