Title
Position Estimation Of A Matrix-Converter-Fed Ac Pm Machine From Zero To High Speed Using Pwm Excitation
Abstract
This paper describes a sensorless position estimation method for a permanent-magnet (PM) motor fed from a three-phase matrix converter using only its space-vector pulsewidth-modulation (SVPWM) sequence. The scheme employs measurements of di/dt of the motor line currents to construct orthogonal "resolverlike" position signals. In principle, the SVPWM waveforms; provide sufficient excitation to extract the position signal from the motor current. However, in order to improve the signal-to-noise ratio of the di/dt signals, a small modification to the SVPWM is required. Sensorless; control of the PM synchronous motor at zero and high speeds is demonstrated experimentally. The use of alternative input voltage vectors is also investigated to reduce the current ripple.
Year
DOI
Venue
2009
10.1109/TIE.2009.2014903
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
Keywords
Field
DocType
Matrix converter (MC), permanent-magnet (PM) motor, pulsewidth modulation (PWM), sensorless control
Synchronous motor,Control theory,Waveform,Signal-to-noise ratio,Voltage,Pulse-width modulation,Excitation,Control engineering,Engineering,Ripple,Machine control
Journal
Volume
Issue
ISSN
56
6
0278-0046
Citations 
PageRank 
References 
10
1.10
7
Authors
4
Name
Order
Citations
PageRank
Qiang Gao125451.34
Greg M. Asher2172.33
M. Sumner39920.37
Lee Empringham418619.65