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Speed Sensorless Stator Flux-Oriented Control of Induction Motor In the Field Weakening Region Using Luenberger Observer  

권태성 (한양대학교 전기공학과 대학원)
신명호 (서울산업대학교 전기공학과)
현동석 (한양대학교 전자전기컴퓨터공학부)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.8, no.5, 2003 , pp. 375-380 More about this Journal
Abstract
In a conventional speed sensorless stator flux-oriented (SFO) induction motor drive, when the estimated speed is transformed into the sample-data model using the first-forward difference approximation, the sampled data model has a modeling error which, in turn, produces an error in the rotor speed estimation. The error is removed by the use of a low pass filter (LPF). As a result, the delay of the estimated speed occurs in transients by the use of the LPF. This paper proposes a method to estimate exactly the speed by using Luenberger observer to solve the problem of a conventional method.
Keywords
Speed sensorless; field weakening; Luenberger observer; SFO system;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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