Adaptive signal injection method combined with EEMF based position sensorless control of IPMSM drives

Ohnuma, Takumi; Makaino, Yuki; Saitoh, Ryoh

doi:10.1109/ipec.2014.6869696

Cited by 3 publications

(1 citation statement)

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“…In this context, combined methods using HF signal injection and extended EMF were proposed so as to provide a single algorithm for magnetic pole position estimation, without the need for algorithm switching depending on motor speed [11,12]. In the literature [11], frequency of injected current is set below the band of extended EMF observer. The injection frequency is as low as about 100 Hz, which results in large amplitude.…”

Section: Introductionmentioning

confidence: 99%

Position Sensorless Control for IPMSM Based on Extended EMF and Voltage Injection Synchronized with Pulse‐Width Modulation Carrier

Yokoyama

Uchida

Kubota

2016

Electrical Engineering Japan

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SUMMARY This paper presents a new position sensorless control system for an interior permanent magnet synchronous motor (IPMSM). The proposed method is based on the extended electromotive force (EMF) and voltage injection synchronized with a pulse‐width modulation carrier. The proposed method does not need to switch the estimation method by speed in order to estimate the magnetic pole position by extended EMF, even at low speeds. Further, the amplitude of the superimposing voltage is changed according to the extended EMF; the applied voltage is not saturated in the high‐load and high‐speed regions. The effectiveness of the proposed sensorless control system was verified experimentally.

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Section: Introductionmentioning

confidence: 99%