Abstract
Uniform demagnetization fault is troublesome, because it can profoundly impact the overall performance of permanent magnet synchronous motors (PMSMs). In this paper, the back electromotive force (Back-EMF) gyration radius method is used to diagnose the uniform demagnetization fault of the PMSM. First, a model of the Back-EMF gyration radius is established, which using time delay embedding (TDE) technology. Second, the Back-EMF gyration radius of PMSM with different operating speeds and different faults is calculated, and the rate of change of the back-EMF gyration radius is taken as the uniform demagnetization fault factor which is used to detect uniform demagnetization fault and fault degree. Finally, the simulation results show that proposed method can achieve PMSM uniform demagnetization fault detection and degree evaluation with a small amount of calculation.
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Acknowledgments
This work was supported by the Key Science and Technology Program of Henan Province (No. 192102210230).
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Nie, Y., Gao, C., Fu, Z. (2020). Uniform Demagnetization Fault Diagnosis in Permanent Magnet Synchronous Motors Based on the Back-EMF Gyration Radius. In: Jia, Y., Du, J., Zhang, W. (eds) Proceedings of 2019 Chinese Intelligent Systems Conference. CISC 2019. Lecture Notes in Electrical Engineering, vol 593. Springer, Singapore. https://doi.org/10.1007/978-981-32-9686-2_8
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DOI: https://doi.org/10.1007/978-981-32-9686-2_8
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