Permanent magnet flux linkage adaptive observer for permanent magnet synchronous motor

Qiu, Tengfei; Wen, Xiaoyan; Zhao, Feng; Wang, Yongxing

doi:10.1109/itec-ap.2014.6940981

Cited by 3 publications

(3 citation statements)

References 8 publications

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“…References in [61][62][63][64][65][66][67] exhibit methods based on the high-frequency injection for PM flux monitoring. References [68][69][70][71][72][73][74][75] are methods for PM flux monitoring without signal injection. References [76][77][78][79][80][81][82][83][84][85][86][87][88] are based on the resistance estimation for the temperature monitoring of PM machines.…”

Section: Research Trend For Extensive Monitoring For Pm Machinesmentioning

confidence: 99%

A Review of Thermal Monitoring Techniques for Radial Permanent Magnet Machines

Meng

Zhang

2021

Machines

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Permanent magnet machines are widely applied in motor drive systems. Therefore, condition monitoring of permanent magnet machines has great significance to assist maintenance. High temperatures are accountable for lots of typical malfunctions and faults, such as demagnetization of the permanent magnet (PM) and inter-turn short circuit of stator windings. Therefore, temperature monitoring of the PM and stator windings is essential for reliable operation. In this paper, an overview introducing and evaluating existing thermal monitoring methods is presented. First, the mechanism of thermal-caused failures for the PM and stator windings is introduced. Then, the design procedure and principles of existing temperature monitoring methods are introduced and summarized. Next, the evaluations and recommendations of application feasibility are demonstrated. Finally, the potential future challenges and opportunities for temperature monitoring of the PM and stator windings are discussed.

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“…Considering the stator flux observation of PMSM is affected by resistance variation, Wei et al 4 proposed a new stator flux observer of PMSM under the γ − δ rotating coordinates system. Qiu et al 5 proposed a design strategy of adaptive observer to monitor the state of permanent magnet (PM) in PMSM. De Bisschop et al 7 and Coenen et al 8 established an analysis model for the demagnetization detection of axial flux PMSM.…”

Section: Introductionmentioning

confidence: 99%

“…According to the demagnetization mechanism of PMSM studied by many scholars, it can be concluded that: Permanent magnet demagnetization of PMSM is inevitable. [1][2][3] For the demagnetization of PMSM, the existing research results mainly focus on the effective monitoring of demagnetization of PMSM and the improvement of PMSM performance after demagnetization, the flux linkage monitoring, [4][5][6] modeling analysis of demagnetization [7][8][9][10] and fault-tolerant control of demagnetization [11][12][13][14] of PMSM are mainly studied.…”

Section: Introductionmentioning

confidence: 99%

Dynamics modeling and analysis of the permanent-magnet synchronous motors bearing-rotor-magnetic field under rotor demagnetize

Zhou

Guo-Ning

Luo

2021

Advances in Mechanical Engineering

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For the phenomenon of rotor demagnetization of Permanent Magnet Synchronous Motor(PMSM), studying the dynamic modeling and analysis of demagnetization rotor. Firstly, considering the unbalanced magnetic pulling (UMP) of the rotor under the demagnetization and the nonlinear Hertz contact generated by the rolling bearing, the double rectangular coordinate system of the stator and rotor is constructed, and the mathematical model of the unbalanced magnetic pull UMP is constructed with the rectangular coordinate as the variable. Then, the dynamics Jeffcott model of the bearing-rotor- magnetic fields coupling system in the condition of demagnetization is established. Based on this, the demagnetization status of permanent magnet in PMSM is described from three aspects: (1) rotor offset caused by demagnetization, (2) demagnetization angle, (3) decrease of air-gap MMF at the demagnetization angle. Through the analysis, it is found that there is a “saddle” point in the bifurcation plots of the rotor system with the change of demagnetization angle. The position of the “saddle” point in the bifurcation plots with the change of demagnetization angle is related to the speed. The research results of this paper provide a theoretical basis for demagnetization quantitative diagnosis and demagnetization vibration control of permanent magnet synchronous motor.

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Permanent magnet flux linkage adaptive observer for permanent magnet synchronous motor

Cited by 3 publications

References 8 publications

A Review of Thermal Monitoring Techniques for Radial Permanent Magnet Machines

Dynamics modeling and analysis of the permanent-magnet synchronous motors bearing-rotor-magnetic field under rotor demagnetize

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