NDLI: Failure diagnosis of actuator using the EKF and NP theorem

Content Provider	Springer Nature Link
Author	Kim, Donghoon Choi, Daegyun Oh, Hwa Suk
Copyright Year	2013
Abstract	There are many classical methods available for generating maneuver commands for spacecraft, where the nominal control system design consists of three torque inputs. A standard problem for the spacecraft feedback control consists of developing attitude stabilization methods that send the angular velocity to zero, if it exists. If a malfunction occurs on-orbit that eliminates or degrades the capability of torque inputs, reconfiguration of the spacecraft system is required for performing missions with the current condition. In this paper, the model-based failure diagnosis method for actuators of spacecraft, such as reaction wheels, is proposed. After generating residuals of attitude through the extended Kalman filter, failure detection of the actuator is performed. Moreover, the probability of actuator failure is conducted using the Neyman-Pearson theorem in order to recognize a degree of failure. Partial and complete failure cases are considered and successful results of failure diagnosis are presented.
Starting Page	450
Ending Page	459
Page Count	10
File Format	PDF
ISSN	15986446
Journal	International Journal of Control, Automation and Systems
Volume Number	11
Issue Number	3
e-ISSN	20054092
Language	English
Publisher	Institute of Control, Robotics and Systems and The Korean Institute of Electrical Engineers
Publisher Date	2013-06-15
Publisher Place	Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Actuator extended Kalman filter failure diagnosis Neyman-Pearson theorem probability density function Control, Robotics, Mechatronics
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Computer Science Applications

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