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The Sensorless Control of PMSM Using the Coordinate Transform and Differential Method  

Choi, Chul (LG OTIS 서보 R&D팀)
Won, Tae-Hyun (부산대학교 전자전기통신공학부)
Park, Sung-Jun (동명대학 전기과)
Park, Han-Woong (해군사관학교 전기공학과)
Kim, Chul-Woo (부산대 전자전기통신공학부)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.8, no.2, 2003 , pp. 107-115 More about this Journal
Abstract
PMSM(permanent magnet synchronous motor) are widely used in industrial and home appliance because of their high torque to inertia ratio, superior power density, and high efficiency For the high control performance, accurate information of rotor position Is essential. In recent, sensorless algorithms are much studied due to high cost problem of position sensor and low reliability in harsh environment. In the proposed method, a differential linkage flux is used for the estimation of rotor position. The differential magnetic field flux is calculated by the voltage equations and measured phase current without any integration and differential calculus. Instead of linkage flux calculation with differential operation, a new mathematical differential method is introduced by a-$\beta$ transformation. The proposed novel position sensorless speed control scheme is verified through experimental results.
Keywords
sensorless algorithm; a new mathematical differential method;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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