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http://dx.doi.org/10.4218/etrij.15.0115.0329

Sensorless Sine-Wave Controller IC for PM Brushless Motor Employing Automatic Lead-Angle Compensation  

Kim, Minki (Information & Communications Core Technology Research Laboratory, ETRI)
Heo, Sewan (IT Convergence Technology Research Laboratory, ETRI)
Oh, Jimin (Information & Communications Core Technology Research Laboratory, ETRI)
Suk, Jung-Hee (Information & Communications Core Technology Research Laboratory, ETRI)
Yang, Yil Suk (Information & Communications Core Technology Research Laboratory, ETRI)
Park, Ki-Tae (Iron Device Corporation)
Kim, Jinsung (Iron Device Corporation)
Publication Information
ETRI Journal / v.37, no.6, 2015 , pp. 1165-1175 More about this Journal
Abstract
This paper presents an advanced sensorless permanent magnet (PM) brushless motor controller integrated circuit (IC) employing an automatic lead-angle compensator. The proposed IC is composed of not only a sensorless sine-wave motor controller but also an isolated gate-driver and current self-sensing circuit. The fabricated IC operates in sensorless mode using a position estimator based on a sliding mode observer and an open-loop start-up. For high efficiency PM brushless motor driving, an automatic lead-angle control algorithm is employed, which improves the efficiency of a PM brushless motor system by tracking the minimum copper loss under various load and speed conditions. The fabricated IC is evaluated experimentally using a commercial 200 W PM brushless motor and power switches. The proposed IC is successfully operated without any additional sensors, and the proposed algorithm maintains the minimum current and maximum system efficiency under $0N{\cdot}m$ to $0.8N{\cdot}m$ load conditions. The proposed IC is a feasible sensorless speed controller for various applications with a wide range of load and speed conditions.
Keywords
Automatic lead-angle compensation; motor control IC; sensorless drive;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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