Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/155208
Title: High torque density torque motor with hybrid magnetization pole arrays for jet pipe servo valve
Authors: Zhang, Qiongfang
Yan, Liang
Duan, Zihao
Jiao, Zongxia
Gerada, Chris
Chen, I-Ming
Keywords: Engineering::Electrical and electronic engineering
Issue Date: 2020
Source: Zhang, Q., Yan, L., Duan, Z., Jiao, Z., Gerada, C. & Chen, I. (2020). High torque density torque motor with hybrid magnetization pole arrays for jet pipe servo valve. IEEE Transactions On Industrial Electronics, 67(3), 2133-2142. https://dx.doi.org/10.1109/TIE.2019.2903761
Journal: IEEE Transactions on Industrial Electronics
Abstract: Torque motor is one key component that directly influences the dynamic performance of jet pipe servo valve in aircraft. In this paper, a novel torque motor with hybrid-magnetization pole arrays is proposed. By changing the magnetization patterns of permanent magnets, the torque motor can significantly improve the output torque by range of 47-52% compared with traditional designs, while maintaining the system size and mass. The design concept and operating principle of the torque motor is presented. The magnetic field distribution is formulated analytically with equivalent magnetic circuit. Different from conventional study, the flux leakage of the permanent magnets and coils is included to improve the model precision. Subsequently, the output torque is derived mathematically from the airgap flux. Following that, the numerical calculation is conducted to validate the mathematical models of magnetic field and output torque. The design optimization is then carried out. One research prototype that can be mounted with either conventional magnet or the proposed hybrid array has been developed. The test rigs are constructed and experiments are conducted on the prototype. Both numerical computation and experimental results verify the significant improvement of torque generation of the proposed hybrid magnetization torque motor.
URI: https://hdl.handle.net/10356/155208
ISSN: 0278-0046
DOI: 10.1109/TIE.2019.2903761
Rights: © 2019 IEEE. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:MAE Journal Articles

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