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Improvised predictive torque control strategy for an open end winding induction motor drive fed with four-level inversion using normalised weighted sum model

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Improvised predictive torque control strategy for an open end winding induction motor drive fed with four-level inversion using normalised weighted sum model

Content Provider	IET Digital Library
Author	Kunisetti, Venkata Praveen Kumar Meesala, Ravi Eswar Kodumur Thippiripati, Vinay Kumar
Abstract	Open end winding induction motor (OEWIM) drives are better alternate for multi-level inverter fed induction motor drives. OEWIM drives can be used in industries and electric vehicles but they entail ripple-free torque. Predictive torque control (PTC) strategy offers high dynamic performance and lesser ripple in torque, flux when compared with direct torque control. Classical PTC involves high switching frequencies and empirical methods to select weighting factors. The selection and tuning of weighting factors are cumbersome. In this article, a new normalised weighted sum model (WSM) based PTC of four-level inverter fed OEWIM is introduced to curtail torque, flux ripples, switching frequency and enhance the selection of weighting factors. The proposed algorithm uses multi-objective cost function and the optimisation of cost function is performed by using normalised WSM. The normalisation of individual cost function simplifies the selection of weighting factors to select optimal voltage vector. As a result, the proposed PTC offers all the features of classical PTC and overcomes the difficulties involved in classical PTC. Simulation and experimental studies are performed on dual inverter fed OEWIM with four-level inversion. The effectiveness of proposed algorithm is verified by comparing proposed PTC algorithm with classical PTC algorithm.
Starting Page	808
Ending Page	816
Page Count	9
ISSN	17554535
Volume Number	11
e-ISSN	17554543
Issue Number	Issue 5, May (2018)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-pel/11/5
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2017.0594
Journal	IET Power Electronics
Publisher Date	2017-12-22
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Asynchronous Machine Classical PTC Algorithm Control of Electric Power System Direct Torque Control Drive Flux Ripples Four-level Inversion Four-level Inverter High Dynamic Performance High Switching Frequency Improvised Predictive Torque Control Strategy Individual Cost Function Induction Motor Drive Induction Motors Invertors Lesser Ripple Machine Control Machine Windings Mechanical Variables Control Motor Drive Multilevel Inverter Multiobjective Cost Function Normalisation Normalised Weighted Sum Model Based PTC Normalised WSM OEWIM Drive Open End Winding Induction Motor Drive Optimisation Optimisation Technique Predictive Control PWM Invertors Ripple-free Torque Torque Control Voltage Control Weighting Factors
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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Improvised predictive torque control strategy for an open end winding induction motor drive fed with four-level inversion using normalised weighted sum model