Abstract
In recent years, under the background of low carbonization and industrial intelligence, with the rise of new energy sources such as wind energy and solar energy, rare earth permanent magnets have begun to be widely used in generators of these new energy sources. From the perspective of green and sustainable development, permanent magnet motor can reduce energy loss and meet the requirements of sustainable development through the reasonable selection and utilization of permanent magnet materials, the design of motor structures, and advanced transmission control technology. In this paper, a 225 kW/34,000 rpm high speed permanent magnet motor (HSPMSM) is designed. Firstly, the electromagnetic design of the motor is carried out, and the finite element model is established. The rotor temperature rise under different materials is analyzed by comparing the electromagnetic characteristics and loss of different permanent magnet materials and using the principle of electrothermal coupling. Combined with the thermal performance of the material, the advantages of rare earth permanent magnet are analyzed, and SmCo permanent magnet material is selected to be more suitable for the motor. Due to the motor's high speed and high frequency harmonic rate, an improved proportional resonant algorithm based on active disturbance rejection is studied and analyzed. Compared with the traditional PI control, the algorithm further reduces the harmonic content of the motor's stator current while improving the motor's running state, thereby reducing the overall loss of the motor. The prototype and experimental platform are made, and the experimental results verify the correctness of the simulation analysis.
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Acknowledgements
This work is supported by the National Natural Science Foundation of China (No. 51877070, U20A20198, 51577048), the Natural Science Foundation of Hebei Province of China (No. E2021208008).
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Li, Z., Yan, ZB., Zhang, LC. et al. Energy-Saving Design and Research of High-Speed Permanent Magnetic Synchronous Motor Under the Development of Rare Earth Resources. J. Electr. Eng. Technol. 19, 1565–1578 (2024). https://doi.org/10.1007/s42835-023-01664-z
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DOI: https://doi.org/10.1007/s42835-023-01664-z