Suppression of Acoustic Noise of Position Sensorless Adaptive Positioning Servo System Based on DyCE Principle

Kawamura, Naoki; Hasegawa, M.

doi:10.1109/speedam.2018.8445353

Cited by 4 publications

(1 citation statement)

References 13 publications

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“…High-frequency signal injection is conventionally used to estimate rotor position of IPMSM at standstill or in low-speed region; this method, however, involves noise generation. [9][10][11] In addition, switching between control methods is needed while IPMSM is driven, which may cause a shock. Thus, ideally a motor should be driven with a position sensorless means, without injection of highfrequency signals at starting and switching between control methods.…”

Section: Flux Estimation Performance Declines Because Of Inap-mentioning

confidence: 99%

Position sensorless starting method for IPMSMs by all‐pass filters

Fujita

Hasegawa

2021

Electrical Engineering Japan

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This paper proposes the starting method for position sensorless controlled interior permanent magnet synchronous motors (IPMSMs) by using all-pass filters.The starting of IPMSM position sensorless control is well known to be extremely difficult due to the lack of electromotive information. Therefore, IPMSM is often started and accelerated with the high-frequency signal injection in general, and then, the control algorithm is switched to position sensorless control without high-frequency injection in middle speed region. However, the acoustic noise due to high-frequency signal injection would occur, and the switching of control methods would cause some bumps. For this reason, IPMSM is desirable to be driven from the start to the steady state without high-frequency signal injection. This paper realizes to start the position sensorless controlled IPMSM without high-frequency signal injection by allpass filter with the assistance of the appropriate initial vector setting of each controller, under the assumption that the high-frequency signal injection is used only at standstill. Finally, this paper experimentally demonstrates the feasibility and the effectiveness of the proposed method.

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Section: Flux Estimation Performance Declines Because Of Inap-mentioning

confidence: 99%