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Design Considerations of Fault-Tolerant Electromechanical Actuator Systems for More Electric Aircraft (MEA)

Zhu, Shaohong; Cox, Tom; Xu, Zeyuan; Gerada, Chris; Li, Chen

Design Considerations of Fault-Tolerant Electromechanical Actuator Systems for More Electric Aircraft (MEA) Thumbnail


Shaohong Zhu

Assistant Professor

Principal Research Fellow

Chen Li


This paper studies the concerns such as architecture and reliability in the deployment of electromechanical actuator (EMA) in the actuation system for more electric aircraft (MEA). First, the reliability of the actuation system architecture such as control surface redundancy and actuator redundancy will be studied to determine an appropriate actuator architecture, with or without considering jamming. Then, the considerations for fault-tolerance and redundancy of the prime electric motor will be discussed in terms of reliability, weight, control complexity, and cost based on a direct-drive EMA designed for MEA. The comparison results demonstrate the configuration of two anti-jamming EMAs with dual three-phase drives connected in parallel can meet the requirements of the safety-critical actuation applications, promoting the deployment of fully electric actuation system on the MEA. Finally, a fault-tolerant motor with double 3-phase system designed for EMA will be presented, with performance under normal and fault conditions validated.

Conference Name IEEE Energy Conversion Congress and Exposition ( ECCE 2018)
Conference Location Portland, OR
Start Date Sep 23, 2018
End Date Sep 27, 2018
Acceptance Date Apr 30, 2018
Online Publication Date Dec 6, 2018
Publication Date Dec 3, 2018
Deposit Date Mar 12, 2019
Publicly Available Date Mar 15, 2019
Publisher Institute of Electrical and Electronics Engineers
Pages 4607-4613
Keywords Electromechanical actuator (EMA); Failure probability; Fault-tolerant; Jamming; More electric aircraft (MEA)
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