Journal of Electrical Engineering and Technology

The Korean Institute of Electrical Engineers (대한전기학회)
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Compensation On-line of Errors Caused by Rotor Centrifugal Deformation for a Magnetically Suspended Sensitive Gyroscope

  • Xin, Chao-Jun (Dept. of Space Science and Technology, Space Engineering University) ;
  • Cai, Yuan-Wen (Dept. of Space Science and Technology, Space Engineering University) ;
  • Ren, Yuan (Dept. of Space Science and Technology, Space Engineering University) ;
  • Fan, Ya-Hong (Institute of Control Engineering)
  • Received : 2017.03.31
  • Accepted : 2017.10.24
  • Published : 2018.03.01
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Abstract

The aim of this paper is to design a centrifugal deformation error compensation method with guaranteed performance that allows angular velocity measurement of the magnetically suspended sensitive gyroscopes (MSSGs). The angular velocity measurement principle and the structure of the MSSG are described, and the analytical model of errors caused by MSSG rotor centrifugal deformation is established. Then, an on-line rotor centrifugal deformation error compensation method based on measurement of rotor spinning speed in real-time has been designed. The common issues caused by centrifugal deformation of spinning rotors can be effectively resolved by the proposed method. Comparative experimental results before and after compensation demonstrate the validity and superiority of the error compensation method.

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References

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