Sliding mode sensor fault tolerant control structure for induction motor
Document Type
Conference Item
Publication Date
8-1-2008
Abstract
This paper proposes a fault tolerant control design that consists of two parts: a nominal performance controller and a fault detection element to provide fault compensating signals to the feedback loop. The nominal controller can have any given structure that satisfies the performance specification. The detection element will operate in parallel with the system until a fault is detected. At this time, the compensation enters the feedback loop; when a sensor failure is detected, the controller structure is augmented by signals from plant model to compensate for the fault. To increase the robustness of the proposed control system, a Lyapunov stability based sliding mode controller is designed and used as the nominal controller is this paper. This work presents simulation results to demonstrate how the proposed model based feedback control structure can be designed to tolerate sensor faults. An induction motor control system is used as a case study for the implementation. The results of the simulation for controlling the speed of the induction motor demonstrate the applicability of the proposed FTCS scheme.
Keywords
Fault tolerant control, Induction motor speed control, Model based control, Sensors faults, Sliding mode control, Case studies, Controller structures, Fault tolerant control, Fault tolerant control designs, Feedback control structures, Feedback loops, Induction motor controls, Lyapunov stabilities, Model based control, Model-based, Nominal controllers, Performance specifications, Plant models, Sensor failures, Sensor faults, Sensors faults, Simulation results, Sliding Mode controllers, Sliding modes.
Divisions
fac_eng
Event Title
SICE Annual Conference 2008 - International Conference on Instrumentation, Control and Information Technology
Event Location
Tokyo, Japan
Event Dates
20 - 22 August 2008
Event Type
conference
Additional Information
ISBN: 978-490776429-6 DOI: 10.1109/SICE.2008.4655111