NDLI: Low complexity predictive torque control strategies for a three-level inverter driven induction motor

Content Provider	IET Digital Library
Author	Habibullah, Md. Lu, Dylan Dah Chuan Xiao, Dan Fletcher, John E. Rahman, Muhammed Fazlur
Abstract	Iterative and complex prediction loop is a challenge for the implementation of finite-state predictive torque control (FS-PTC) of motor drive. The complexity is due to the complex torque calculations, number of available voltage vectors (which are called as prediction vectors), and weighting factor tuning for torque and flux errors in the cost function. One way to reduce the complexity is an equivalent reference stator flux vector calculation (RSFVC) from torque and flux references, which also solves the problem of weighting factor tuning. Along with a new stator flux based RSFVC technique, a reduced number of prediction vectors are proposed in this study to reduce the number of iteration of the prediction loop. The position of the stator flux and sign of the stator flux-error are considered to lessen the number of prediction vectors. Hence, the implementation challenges of FS-PTC algorithm are overcome. The performance of the proposed technique is investigated for two types of RSFVCs: one is based on the stator flux, and another one is based on the rotor flux. Experimental results verify that the proposed low complexity FS-PTC strategies retain the advantages of a conventional FS-PTC.
Starting Page	776
Ending Page	783
Page Count	8
ISSN	17518660
Volume Number	11
e-ISSN	17518679
Issue Number	Issue 5, May (2017)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-epa/11/5
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-epa.2016.0572
Journal	IET Electric Power Applications
Publisher Date	2017-05-01
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Asynchronous Machine Complex Prediction Loop Complex Torque Calculation Complexity Reduction Control of Electric Power System Drive Equivalent Reference Stator Flux Vector Calculation Finite-state Predictive Torque Control Flux Reference FS-PTC Algorithm Induction Motor Drive Interpolation And Function Approximation Invertors Iterative Method Iterative Prediction Loop Low-complexity Predictive Torque Control Strategy Machine Control Mechanical Variables Control Motor Drive Numerical Analysis Optimal Control Power Electronics Power Supply Predictive Control Stator Flux-based RSFVC Technique Stator Flux-error Supervisory Circuit Three-level Inverter Driven Induction Motor Torque Control Torque Error Torque Reference Weighting Factor Tuning
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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