NDLI: Low speed position sensorless method for permanent magnet synchronous motors with closed-slot stator structure

Content Provider	IEEE Xplore Digital Library
Author	Iwaji, Y. Tobari, K. Onuma, Y.
Copyright Year	2015
Description	Author affiliation: Motor Syst. Res. Dept., Hitach, Ltd., Hitachi, Japan (Iwaji, Y.; Tobari, K.) \|\| Ind. Control Syst. Design Dept., Hitachi Ind. Equip. Syst. Co., Ltd., Narashino, Japan (Onuma, Y.)
Abstract	A block commutation based position sensorless method for low speed regions has some advantages [6]-[11]. This method introduces "Induced Voltage caused by Magnetic Saturation (IVMS)". The IVMS based method can be applied to most permanent magnet synchronous motors (PMSM) with or without a saliency rotor structure. However, some motors that have a closed-slot stator structure cannot easily be driven by using this method, because of the complicated characteristics of the magnetic circuit. The detected IVMS is significantly affected by these characteristics. A new technique for closed-slot stator structure motors is proposed in this paper. A high frequency voltage injection is introduced in order to keep the magnetic saturation characteristics constant. The principle for it and our experimental results are also presented.
Starting Page	2935
Ending Page	2940
File Size	464197
Page Count	6
File Format	PDF
e-ISBN	9781467371513
DOI	10.1109/ECCE.2015.7310071
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-09-20
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Magnetic flux Permanent magnet synchronous motors Rotors Position sensorless method Closed-slot stator structure Stators Permanent magnet motors Synchronous motors Threshold voltage Magnetic saturation Saturation magnetization
Content Type	Text
Resource Type	Article

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