Comparison of position sensorless control based back-EMF estimators in PMSM

Uddin, Md. Nasir and Rashid, Muhammad Mahbubur and Rubaiyat, M and Hossain, Belayet and Salam, S M and Nithe, N A (2016) Comparison of position sensorless control based back-EMF estimators in PMSM. In: 2015 18th International Conference on Computer and Information Technology (ICCIT), 21st-23rd December 2015, Dhaka, Bangladesh.

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Abstract

This research approach a study with comparison of position sensorless control schemes based on back-electromotive force (back-EMF) estimation in permanent magnet synchronous motors (PMSM). The characteristics of the estimated back-EMF signals are analyzed using various mathematical models of a PMSM. The transfer functions of the estimators, based on the extended EMF model in the rotor reference frame, are derived to show their similarity. They are then used for the analysis of the effects of both the motor parameter variations and the voltage errors due to inverter nonlinearity on the accuracy of the back-EMF estimation. The differences between a phase-locked-loop (PLL) type estimator and a Luenberger observer type estimator, generally used for extracting rotor speed and position information from estimated back-EMF signals, are also examined. An experimental study with a 250-W interior-permanent-magnet machine has been performed to validate the analyses.

Item Type:	Conference or Workshop Item (Plenary Papers)
Additional Information:	5486/51137
Uncontrolled Keywords:	PMSM, Back-EMF, Estimators, Sensor less, Control.
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA349 Mechanics of engineering. Applied mechanics
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering
Depositing User:	Dr Muhammad Rashid
Date Deposited:	20 Jul 2016 10:37
Last Modified:	11 Oct 2017 18:38
URI:	http://irep.iium.edu.my/id/eprint/51137

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