A Novel Method for Rotational Speed Observation of Magnetically Suspended High Speed Motor Using Quadrature Phase-Locked-Loop

This paper proposes an FPGA-based Quadrature Phase-Locked-Loop (QPLL) to observe the rotational speed of Magnetically Suspended High Speed Motor, so that the speed sensor can be cancelled. The proposed method can realize the accurate frequency estimation even there exists harmonic component or chang...

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Bibliographic Details
Published in:IEEE sensors journal 2022-05, Vol.22 (9), p.8604-8613
Main Authors: Yang, Rundong, Pei, Wenze, Yang, Yiqing, Deng, Zhiquan, Peng, Cong
Format: Article
Language:English
Subjects:
active magnetic bearing (AMB)
Controllers
Design parameters
Frequency estimation
Harmonic analysis
High speed
Magnetic levitation
Magnetically suspended high speed motor
Phase locked loops
quadrature phase-locked-loop (PLL)
Quadratures
Rotors
Sensors
speed observation method aspace
Vibration control
Vibrations
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Description
Summary:This paper proposes an FPGA-based Quadrature Phase-Locked-Loop (QPLL) to observe the rotational speed of Magnetically Suspended High Speed Motor, so that the speed sensor can be cancelled. The proposed method can realize the accurate frequency estimation even there exists harmonic component or change in amplitude of the input signal. Also, the proposed frequency observation method decouples with the vibration suppression controller, which reduces the difficulty in the controller diagram and the parameter design. The simulation and experiment validates the effectiveness of the method.
ISSN:1530-437X
1558-1748
DOI:10.1109/JSEN.2022.3157307