Reduced-order Observer Analysis in MBPC Techniques Applied to the Six-phase Induction Motor Drives

Abstract

Model-based predictive control techniques have been recently applied with success in power electronics, particularly in the fields of current control applied to AC multiphase electrical drives. In AC electrical drives control, most of state variables (i.e., rotor currents, rotor fluxes, etc.) cannot be measured, so they must be estimated. As a result of this issue, this chapter proposes a comparative study of reduced-order observers used to estimate the rotor currents in an model-based predictive current control applied to the six-phase induction motor. The proposed control techniques are evaluated using the Luenberger observer and the optimal estimator based on Kalman filter. Different operation modes are analyzed and are further compared in terms of statistical parameters of performance (i.e., covariance, standard deviation, mean square error, etc.). The effectiveness of proposed methods is verified by a set of comparative experiments obtained by using a six-phase induction motor system experimental setup.

Wind turbine emulator using three-phase IM controlled through an adaptive reactive power estimator fed by soft-VSI topology

“…Thanks to their robustness, high performance and reliability and affordability, induction motors (IMs) have been widely used in a variety of industrial applications such as transportation, manufacturing, chemistry, mining and renewable energy system, which consume up to 50% of the electrical energy generated worldwide (Gregor, 2015).…”

Vectores Virtuales de Tensión en Control Directo de Par para una Máquina de Inducción de Seis Fases

“…Si se analiza el caso particular de las máquinas multifásicas compuestas por varios devanados trifásicos, éstas representan una de las opciones más utilizadas ya que permiten la aplicación casi directa de la tecnología estandarizada trifásica (Gamesa Technological Corporation, 2016;Jung et al, 2012). Dentro de este grupo de máquinas multifásicas destacan aquellas compuestas por dos conjuntos de devanados trifásicos, existiendo en la literatura un amplio número de trabajos en los que se presentan estrategias de control para este tipo de máquinas multifásicas en operación normal Durán et al, 2012;Ferreira y Bucknall, 2004;Gao, Fletcher y Zheng, 2011;Gregor et al, 2015;Hodge, Williamson y Smith, 2002;Levi, 2016;Lu y Corzine, 2005;Simoes y Vieira, 2002;Smith, 2002;Sudhoff et al, 1997;Terrien, Siala y Noy, 2004;Zhao y Lipo, 1995;Zheng et al, 2011) y en situación post-falta (Bermúdez et al, 2017;Che et al, 2013;González Prieto et al, 2017;Guzmán et al, 2014;Guzmán et al, 2016;Munim, Durán y Che, 2016;Ríos-García, 2017;Tani et al, 2012). La tendencia seguida a la hora de implementar las estrategias de control para este tipo de sistemas ha sido extender las estrategias de control de los sistemas convencionales trifásicos.…”