An Improved Flux Observer for Sensorless Permanent Magnet Synchronous Motor Drives with Parameter Identification
- Authors
- Hai Lin; 권병일; Kyu-Yun Hwang
- Issue Date
- May-2013
- Publisher
- 대한전기학회
- Keywords
- Permanent magnet synchronous motor; Observer; Stator flux linkage
- Citation
- Journal of Electrical Engineering & Technology, v.8, no.3, pp.516 - 523
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- Journal of Electrical Engineering & Technology
- Volume
- 8
- Number
- 3
- Start Page
- 516
- End Page
- 523
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/30110
- ISSN
- 1975-0102
- Abstract
- This paper investigates an improved stator flux linkage observer for sensorless permanent magnet synchronous motor (PMSM) drives using a voltage-based flux linkage model and an adaptive sliding mode variable structure. We propose a new observer design that employs an improved sliding mode reaching law to achieve better estimation accuracy. The design includes two models and two adaptive estimating laws, and we illustrate that the design is stable using the Popov hyper-stability theory. Simulation and experimental results demonstrate that the proposed estimator accurately calculates the speed, the stator flux linkage, and the resistance while overcoming the shortcomings of traditional estimators.
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Collections - COLLEGE OF ENGINEERING SCIENCES > SCHOOL OF ELECTRICAL ENGINEERING > 1. Journal Articles
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