Simulation and experimental validation of induction machine dynamics driving multi-inertial loads

Issue title: Special Volume: Proceedings of the eleventh International Symposium on Applied Electromagnetics and Mechanics ISEM-Versailles ISEM 03

Article type: Research Article

Authors: O'Sullivan, T.M.^a | Schofield, N.^{a; *} | Bingham, C.M.^a

Affiliations: [a] Department of Electronic and Electrical Engineering, University of Sheffield, Sheffield, S1 3JD, United Kingdom

Correspondence: [*] Corresponding author: Nigel Schofield; Tel.: +44 114 222 5879; Fax: +44 114 222 5196; E-mail: [email protected]

Abstract: Dynamic models of electrical machines and their associated drive-train mechanics have had limited experimental validation to-date, due, primarily, to the difficulty in the dynamic measurement of torque. This paper presents results from a study investigating the feasibility of utilising a novel, non-contact, torque measurement system, based on surface acoustic wave (SAW) technology, for application in brushless machine-based, servo drive systems. Simulation of the drive system is facilitated via the implementation of a linear d-q axis induction machine model, coupled with a multi-mass model of the driven mechanical system. Experimental validation of the simulation models is augmented via a test facility comprising of a direct-on-line (DOL) squirrel cage induction machine coupled to an induction generator which provides an electromagnetic and inertial load. The results presented show a good correlation between simulation models and experimental test data previously not acheivable prior to the SAW technology due to the absence of a torque measuring system having suitable bandwidth.

DOI: 10.3233/JAE-2004-568

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 19, no. 1-4, pp. 231-236, 2004