Proportional Integral Derivative Based Fault Tolerant Control for a Gas Turbine

2010 ◽  
Vol 132 (11) ◽  
Author(s):  
Marino Sanchez-Parra ◽  
Cristina Verde ◽  
Dionisio A. Suarez
Keyword(s):  
Gas Turbine ◽  
Fault Tolerant ◽  
Fault Tolerant Control ◽  
Combined Cycle ◽  
Fault Detection And Isolation ◽  
Proportional Integral Derivative ◽  
Switching Scheme ◽  
Isolation System ◽  
Proportional Integral ◽  
Mechanical Faults

This paper presents a fault tolerant control switching scheme with embedded fault detection and isolation system for the gas turbine of a combined cycle power plant. Mechanical faults of the turbogenerator are considered as case study. Previous to the control design, the detection and isolation capabilities of the gas turbine are studied by applying structural analysis to a first principles based gas turbine model. As a result, a new sensor was suggested to improve the detectability and isolability with respect to mechanical faults and sensors faults. Furthermore, the active fault tolerant control developed is based on stabilizing families of proportional integral derivative (PID) controllers, which are tuned off-line and the plant switching scheme preserves the stability of the whole closed-loop system, thanks to a careful selection of controller according to fault conditions. Simulation results with nonlinear model show the potential of the procedure.

Active fault-tolerant control of a double inverted pendulum

2007 ◽  
Vol 221 (6) ◽  
pp. 895-904 ◽  
Author(s):  
Z Weng ◽  
R. J. Patton ◽  
P Cui
Keyword(s):  
Inverted Pendulum ◽  
Active Fault ◽  
Fault Tolerant ◽  
Fault Tolerant Control ◽  
Fault Detection And Isolation ◽  
Residual Vector ◽  
Pendulum System ◽  
Inverted Pendulum System ◽  
Affine Parameter ◽  
Active Fault Tolerant Control

This paper proposes an active fault-tolerant control scheme based on a gain-scheduled H∞ design strategy. Under the assumption that the effects of faults on the system can be of affine parameter dependence, a reconfigurable robust H∞ controller is developed. The resulting controller is a function of the fault effect factors, which can be derived online from the residual vector of the fault detection and isolation (FDI) mechanism. To demonstrate the effectiveness of the proposed method, a non-linear double inverted pendulum system with a fault in the motor tachometer loop is considered. The adaptive fault-tolerant controller recovers well from the unstable system with loop failure.

scholarly journals Global Fault-Tolerant Control of Underactuated Aerial Vehicles with Redundant Actuators

2019 ◽  
Vol 2019 ◽  
pp. 1-12 ◽  
Author(s):  
Yushu Yu ◽  
Yiqun Dong
Keyword(s):  
Active Fault ◽  
Fault Tolerant ◽  
Mathematical Proof ◽  
Fault Tolerant Control ◽  
Fault Isolation ◽  
Fault Detection And Isolation ◽  
Control Approach ◽  
Aerial Vehicles ◽  
Redundant Actuators ◽  
Robust Parameter

In this paper, we consider the fault-tolerant control problem for aerial vehicles with redundant actuators. The redundant actuator brings difficulty in fault identification and isolation. Active fault-tolerant control is adopted in this paper as it can detect actuator fault. The entire proposed fault-tolerant control algorithm contains a baseline controller, the fault detection and isolation scheme, and the controller reconstruction module. A robust parameter identification method is designed to identify the torque and thrust generated by the actuators. The feasibility of isolating the fault for the redundant actuators is analyzed through mathematical proof. Through the analysis, the practical fault isolation algorithm is also proposed. Two typical aerial vehicles with redundant actuators, an eight-rotor aircraft and a hexa-rotor aircraft, are adopted in numerical simulations to verify the effectiveness of the proposed fault-tolerant control approach.

scholarly journals Active versus passive fault-tolerant control of a redundant multirotor UAV

2019 ◽  
Vol 124 (1273) ◽  
pp. 385-408
Author(s):  
M. Saied ◽  
B. Lussier ◽  
I. Fantoni ◽  
H. Shraim ◽  
C. Francis
Keyword(s):  
Fault Tolerance ◽  
Fault Detection ◽  
Active Fault ◽  
Fault Tolerant ◽  
Sliding Mode ◽  
Fault Tolerant Control ◽  
Fault Detection And Isolation ◽  
Detection Scheme ◽  
Redundancy Management ◽  
Model Free

ABSTRACTThis paper considers actuator redundancy management for a redundant multirotor Unmanned Aerial Vehicle (UAV) under actuators failures. Different approaches are proposed: using robust control (passive fault tolerance), and reconfigurable control (active fault tolerance). The robust controller is designed using high-order super-twisting sliding mode techniques, and handles the failures without requiring information from a Fault Detection scheme. The Active Fault-Tolerant Control (AFTC) is achieved through redistributing the control signals among the healthy actuators using reconfigurable multiplexing and pseudo-inverse control allocation. The Fault Detection and Isolation problem is also considered by proposing model-based and model-free modules. The proposed techniques are all implemented on a coaxial octorotor UAV. Different experiments with different scenarios were conducted for the validation of the proposed strategies. Finally, advantages, disadvantages, application considerations and limitations of each method are examined through quantitative and qualitative studies.

Implementation of Fault Tolerant Control Scheme for Point Kinetic Reactor Model With Temperature Feedback in Matlab

2016 ◽  
Author(s):  
Huan He
Keyword(s):  
Fault Tolerant ◽  
Fault Tolerant Control ◽  
Fault Detection And Isolation ◽  
Fault Estimation ◽  
Coolant Temperature ◽  
Fuel Temperature ◽  
Sensors And Actuators ◽  
Reactor Model ◽  
Critical System ◽  
Advanced Control

As a highly safety-critical system, it is insufficient for the Nuclear Power Plant (NPP) Instrumentation and Control (I&C) system to simply rely on a conventional control schemes or controllers which only satisfy stability and performance specification to the perturbation of the nominal plant. Since the current operating or newly-built I&C systems are based on transferring or adapting modern high performance electronic devices, it provides the hardware foundation and possibility to incorporate more advanced control systems into nuclear systems to achieve higher safety and stable performance, even in unexpected faulty situations. Active Fault Tolerant Control (FTC) is one of the choices for such advanced control. Active FTC encompasses the following components: 1. nominal controller design, 2. sensors and actuators fault detection and isolation, and 3. fault estimation and fault accommodation. In this research, approaches for each component are integrated into an active FTC scheme. Following this, the active FTC scheme is applied to a point kinetic rector model with fuel temperature and coolant temperature effect to reactivity. Simulation results show that the active FTC scheme designed in this research can effectively track the global power set point, even under situations with single fault from actuator or sensors.

Fault Tolerant Control with PID's for a Gas Turbine

2009 ◽  
Vol 42 (8) ◽  
pp. 1067-1072 ◽  
Author(s):  
Marino Sánchez-Parra ◽  
C. Verde
Keyword(s):  
Gas Turbine ◽  
Fault Tolerant ◽  
Fault Tolerant Control
Sign in / Sign up

Export Citation Format

Share Document