A dual redundancy technique for electromechanical actuation system applied to launch vehicles

This paper presents, an Electro-Mechanical Actuator (EMA) based position control system with redundancy technique is being presented. The servo system is composed of two chains, a prime chain and a redundant chain, which includes the position servo system of the EMA. Only one chain works at a time,...

Full description

Saved in:
Bibliographic Details
Published in2011 International Conference on Emerging Trends in Electrical and Computer Technology pp. 352 - 357
Main Authors Jaison, H, Anas, S R, Gopinath, A, Subathra, M S P
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.03.2011
Subjects
Actuators
Brushless DC motors
Electromechanical actuator (EMA)
Fault Detection and Isolation (FDI)
Logic gates
Mathematical model
Prime chain
Redundant chain
Windings
Online AccessGet full text
ISBN1424479231
9781424479238
DOI10.1109/ICETECT.2011.5760142

Cover

More Information
Summary:This paper presents, an Electro-Mechanical Actuator (EMA) based position control system with redundancy technique is being presented. The servo system is composed of two chains, a prime chain and a redundant chain, which includes the position servo system of the EMA. Only one chain works at a time, probably the main chain operates during normal condition of the system. A new, simpler fault detection and isolation (FDI) technique is being developed, which will be monitoring the prime chain continuously. If any type of fault occurs in the prime chain, the FDI isolates the prime chain from the system and switches to the redundant chain. Thereafter redundant chain will be driving the system. The system model is then simulated using MATLAB/Simulink, with trapezoidal waveforms of backemf. Using the DSP controller chip, TMS320F2812 as a control core, hardware implementation has been carried out.
ISBN:1424479231
9781424479238
DOI:10.1109/ICETECT.2011.5760142