YI Jianhui, JIAO Liye, TIAN Jiudong, et al. A study on starting of permanent magnet traction motor in rotating state based on HFI for initial speed recognition[J]. Electric drive for locomotives,2024(2): 25-32.
YI Jianhui, JIAO Liye, TIAN Jiudong, et al. A study on starting of permanent magnet traction motor in rotating state based on HFI for initial speed recognition[J]. Electric drive for locomotives,2024(2): 25-32.DOI:10.13890/j.issn.1000-128X.2024.02.003.
A study on starting of permanent magnet traction motor in rotating state based on HFI for initial speed recognition
To solve the starting problem of permanent magnet traction motors in rotating state
this paper proposes a starting technology based on high-frequency injection (HFI) for initial speed recognition in rotating state. The technical principle and mathematical model of high-frequency injection of pulsating sine wave were studied
and the traditional high-frequency injection was improved to make it suitable for starting in rotating state
simulation calculation was carried out. Besides
a starting strategy for permanent magnet synchronous motor in rotating state was proposed based on high-frequency injection for initial speed recognition
and tests were designed to test and verify the pulsating sine wave high-frequency injection technology and the starting strategy in rotating state. Through research
it concluded that the pulsating sine wave high-frequency injection technology can track the actual position and speed of the rotor with high accuracy; the starting technology based on high-frequency injection in rotating state can accurately identify the speed of the motor when it starts up and effectively solve the motor starting problems under different working conditions. The test verifies the high-frequency injection technology for initial speed recognition and the starting strategy in rotating state.
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