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Open AccessArticle

An Electro-Mechanical Actuator Motor Voltage Estimation Method with a Feature-Aided Kalman Filter

Department of Automatic Test and Control, Harbin Institute of Technology, Harbin 150001, China
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Authors to whom correspondence should be addressed.
This paper is an expanded version of “A Feature-aided Kalman Filter Model for Electro-Mechanical Actuator Voltage Estimation” in the Proceedings of the SDPC 2018, Xi’an, China, 15–17 August 2018.
Sensors 2018, 18(12), 4190; https://doi.org/10.3390/s18124190
Received: 20 October 2018 / Revised: 24 November 2018 / Accepted: 26 November 2018 / Published: 29 November 2018
(This article belongs to the Special Issue Sensors for Prognostics and Health Management)
Electro-Mechanical Actuators (EMA) have attracted growing attention with their increasing incorporation in More Electric Aircraft. The performance degradation assessment of EMA needs to be studied, in which EMA motor voltage is an essential parameter, to ensure its reliability and safety of EMA. However, deviation exists between motor voltage monitoring data and real motor voltage due to electromagnetic interference. To reduce the deviation, EMA motor voltage estimation generally requires an accurate voltage state equation which is difficult to obtain due to the complexity of EMA. To address this problem, a Feature-aided Kalman Filter (FAKF) method is proposed, in which the state equation is substituted by a physical model of current and voltage. Consequently, voltage state data can be obtained through current monitoring data and a current–voltage model. Furthermore, voltage estimation can be implemented by utilizing voltage state data and voltage monitoring data. To validate the effectiveness of the FAKF-based estimation method, experiments have been conducted based on the published data set from NASA’s Flyable Electro-Mechanical Actuator (FLEA) test stand. The experiment results demonstrate that the proposed method has good performance in EMA motor voltage estimation. View Full-Text
Keywords: electro-mechanical actuator; performance degradation; voltage estimation; feature-aided Kalman filter electro-mechanical actuator; performance degradation; voltage estimation; feature-aided Kalman filter
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Zhang, Y.; Liu, L.; Peng, Y.; Liu, D. An Electro-Mechanical Actuator Motor Voltage Estimation Method with a Feature-Aided Kalman Filter. Sensors 2018, 18, 4190.

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