YANG Cun-xiang, LIU Shu-bo and ZHANG Zhi-yan. Analysis of PMSM performance under demagnetization fault based on simulation model[J]. Journal of Light Industry, 2017, 32(6): 88-93. doi: 10.3969/j.issn.2096-1553.2017.6.011
Citation:
YANG Cun-xiang, LIU Shu-bo and ZHANG Zhi-yan. Analysis of PMSM performance under demagnetization fault based on simulation model[J]. Journal of Light Industry, 2017, 32(6): 88-93.
doi:
10.3969/j.issn.2096-1553.2017.6.011
Analysis of PMSM performance under demagnetization fault based on simulation model
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College of Electrical and Information Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China;
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Isotope Institute Co., Ltd., He'nan Academy of Science, Zhengzhou 450015, China
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Received Date:
2016-03-02
Accepted Date:
2016-10-09
Available Online:
2017-11-15
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Abstract
For performance analysis of permanent magnet synchronous motor (PMSM) under demagnetization falut, a simulation model of PMSM was established on the Matlab/Simulink platform based the mathematical model of PMSM. Through changing the flux linkage to simulate demagnetization fault, with PMSM magnetic chain as input parameters, the model simulated the permanent magnet demagnetization fault through changing the parameters, and set up the operation condition to simulate. The characteristics of the torque, rotational speed and stator current of the PMSM were obtained by the simulation. The simulation results showed that with the increase of the demagnetization degree, the output torque were smaller, the fluctuation of output torque and rotational speed increased, the motor starting time was extended, the stator current gradually decreased, and the system convergence performance became worse. When the degree of demagnetization reached more than 50%, the motor could not enter the stable operation state.
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