start-ver=1.4
cd-journal=joma
no-vol=34
cd-vols=
no-issue=1
article-no=
start-page=163
end-page=168
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1998
dt-pub=19982
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=An approach to real-time position estimation at zero and low speed for a PM motor based on saliency
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=<p>This paper presents a magnetic saliency-based position estimation approach for a permanent magnet (PM) motor fed by a voltage-source pulse width modulation (PWM) inverter. The proposed real-time estimation algorithm detects motor current harmonics and calculates the inductance matrix, including rotor position information. Position estimation can be performed every period of PWM or carrier cycle. An experimental system using an interior permanent magnet (IPM) synchronous motor has been constructed. Experimental results verify that position estimation within 10° in electrical angle is obtained at standstill and at speeds as low as 1 r/min by the proposed approach</p>

en-copyright=
kn-copyright=

en-aut-name=OgasawaraSatoshi
en-aut-sei=Ogasawara
en-aut-mei=Satoshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=AkagiHirofumi
en-aut-sei=Akagi
en-aut-mei=Hirofumi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Okayama University

affil-num=2
en-affil=
kn-affil=Okayama University
en-keyword=Interior permanent magnet synchronous motor
kn-keyword=Interior permanent magnet synchronous motor
en-keyword=magnetic saliency
kn-keyword=magnetic saliency
en-keyword=sensorless drive
kn-keyword=sensorless drive
END