Adaptive Fault-Tolerant Prescribed-Time Control for Teleoperation Systems With Position Error Constraints

2020 ◽  
Vol 16 (7) ◽  
pp. 4889-4899 ◽  
Author(s):  
Ziwei Wang ◽  
Bin Liang ◽  
Yanchao Sun ◽  
Tao Zhang
Keyword(s):  
Fault Tolerant ◽  
Position Error ◽  
Time Control ◽  
Teleoperation Systems

scholarly journals Fixed-Time Sliding-Mode Fault-Tolerant Control of Waste Heat Power Generator Systems

Complexity ◽  
2018 ◽  
Vol 2018 ◽  
pp. 1-8 ◽  
Author(s):  
Zhi Wang ◽  
Yateng Bai ◽  
Jin Xie ◽  
Zhijie Li ◽  
Caoyuan Ma ◽  
...  
Keyword(s):  
Fault Tolerant ◽  
Waste Heat ◽  
Sliding Mode ◽  
Dynamic Performance ◽  
Tracking Error ◽  
Fixed Time ◽  
Fault Estimation ◽  
Actuator Fault ◽  
Heat Power ◽  
Time Control

In order to overcome disturbances such as the instability of internal parameters or the actuator fault, the time-varying proportional-integral sliding-mode surface is defined for coordinated control of the excitation generator and the steam valve of waste heat power generation units, and a controller based on sliding-mode function is designed which makes the system stable for a limited time and gives it good performance. Based on this, a corresponding fault estimation law is designed for specific faults of systems, and a sliding-mode fault-tolerant controller is constructed based on the fixed-time control theory so that the systems can still operate stably when an actuator fault occurs and have acceptable performance. The simulation results show that the tracking error asymptotically tends to be zero, and the fixed-time sliding-mode fault-tolerant controller can obviously improve the dynamic performance of the system.

A Low Cost Fault-Tolerant Multiprocessor System for Real-Time Control

1986 ◽  
Vol 19 (13) ◽  
pp. 113-117
Author(s):  
J.J. Serrano ◽  
C. Cebrián ◽  
J. Vila ◽  
R. Ors
Keyword(s):  
Real Time ◽  
Fault Tolerant ◽  
Low Cost ◽  
Multiprocessor System ◽  
Real Time Control ◽  
Time Control

XFTRTS - A XtratuM Based Fault-Tolerant Real-Time Control System

2012 ◽  
Vol 433-440 ◽  
pp. 4095-4100
Author(s):  
Chan Juan Li ◽  
Chuan De Zhang ◽  
Qing Guo Zhou
Keyword(s):  
Control System ◽  
Fault Tolerance ◽  
Real Time ◽  
Operating Systems ◽  
Fault Tolerant ◽  
Real Time Control ◽  
Time Control ◽  
Performance Metric ◽  
Virtualization Technology ◽  
Single Host

Nowadays there are a few works which are concerned with the virtualization technology and the fault-tolerance technology, because virtualization system can provide an environment allowing multiple operating systems running in concurrent way. In this paper, we based on a real-time hypervisor-XtratuM, propose the architecture of a fault-tolerant real-time control system (XFTRTS), which provide local backup execution and to support different level diversity including N-version programming on a single host. Furthermore, we implement a prototype of XFTRTS and test its important performance metric–latency, which is within two microseconds.

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