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An Improved Flux Observer for Sensorless Permanent Magnet Synchronous Motor Drives with Parameter Identification
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 Title & Authors
An Improved Flux Observer for Sensorless Permanent Magnet Synchronous Motor Drives with Parameter Identification
Lin, Hai; Hwang, Kyu-Yun; Kwon, Byung-Il;
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 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.
 Keywords
Permanent magnet synchronous motor;Observer;Stator flux linkage;
 Language
English
 Cited by
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Neuro-Fuzzy Control of Interior Permanent Magnet Synchronous Motors: Stability Analysis and Implementation, Journal of Electrical Engineering and Technology, 2013, 8, 6, 1439  crossref(new windwow)
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A Nonlinear Sliding Mode Controller for IPMSM Drives with an Adaptive Gain Tuning Rule, Journal of Power Electronics, 2015, 15, 3, 753  crossref(new windwow)
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Adaptive PID Speed Control Design for Permanent Magnet Synchronous Motor Drives, IEEE Transactions on Power Electronics, 2015, 30, 2, 900  crossref(new windwow)
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