6533b858fe1ef96bd12b6447

RESEARCH PRODUCT

Input-Output Feedback Linearization Control with On-line MRAS Based Inductor Resistance Estimation of Linear Induction Motors Including the Dynamic End-Effects

Francesco AlongeMarcello PucciMaurizio CirrincioneAntonino Sferlazza

subject

0209 industrial biotechnologyEngineeringLinear induction motor feedback linearization end-effects MRAS estimator.02 engineering and technologyInductorEnd effectsIndustrial and Manufacturing Engineering020901 industrial engineering & automationSettore ING-INF/04 - AutomaticaControl theoryAdaptive system0202 electrical engineering electronic engineering information engineeringlinear induction motor (LIM)Feedback linearizationElectrical and Electronic Engineeringmodel reference adaptive system (MRAS) estimatorbusiness.industry020208 electrical & electronic engineeringControl engineeringInductanceControl and Systems EngineeringLinear induction motorfeedback linearization (FL)HyperstabilitybusinessMRASInduction motor

description

This paper proposes the theoretical framework and the consequent application of the input–output feedback linearization (FL) control technique to linear induction motors (LIMs). LIM, additionally to rotating induction motor, presents other strong nonlinearities caused by the dynamic end effects, leading to a space-vector dynamic model with time-varying inductance and resistance terms and a braking force term. This paper, starting from a recently developed dynamic model of the LIM taking into consideration its end effects, defines a FL technique suited for LIMs, since it inherently considers its dynamic end effects. Additionally, it proposes a technique for the on-line estimation of the inductor resistance, based on model reference adaptive system (MRAS) on-line estimator; it has been exploited for adapting on-line the FL control action versus inductor resistance variations leading to undesirable steady-state tracking errors. The stability of the proposed MRAS on-line estimator has been proven theoretically, adopting the Popov's criterion for hyperstability. The proposed approach has been validated experimentally on a suitably developed test setup, under both no load and loaded conditions. It has been compared firstly with the simplest control structure, which is the scalar $V/f$ control, secondly under the same closed-loop bandwidths of the flux and speed systems, with the industrial standard in terms of high-performance control technique, i.e., field-oriented control.

yearjournalcountryeditionlanguage
2016-01-01
10.1109/tia.2015.2465939http://hdl.handle.net/10447/173715