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Harmonic Current Injection Method for Torque Ripple Suppression over Wide Speed Range Considering Magnetic Saturation in PMSMs
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| Author(s) |
Kodai TAKEDA, Shun TANIGUCHI, Takafumi HARA, Kentaro MATSUO |
| Abstract |
We propose a flux-based harmonic current injection method that accounts for magnetic saturation to suppress torque ripple in permanent magnet synchronous motors feedforwardly. The key feature of the proposed method is converting a harmonic-current command into a flux command by pre-acquired nonlinear flux information and converting the flux command into voltage commands through an approximate equation. Numerical simulations demonstrate that this method reduces 12th-order torque ripple by over 70\\% within a wide frequency range. Experimental results indicate that the amplitude and phase errors of the injected harmonic flux can be held to as low as 0.2\\% and 2.9°, respectively, even without additional feedback control for harmonics. |
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| Filename: | 0024-epe2025-full-04591461.pdf |
| Filesize: | 753.4 KB |
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| Type |
Members Only |
| Date |
Last modified 2025-08-31 by System |
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