Loss-Minimizing Flux Level Control of Induction Motor Drives

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© 2012 Institute of Electrical & Electronics Engineers (IEEE). Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other work.
Journal Title
Journal ISSN
Volume Title
School of Electrical Engineering | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2012
Major/Subject
Mcode
Degree programme
Language
en
Pages
952-961
Series
IEEE Transactions on Industry Applications, Volume 48, Issue 3
Abstract
The paper applies a dynamic space-vector model to loss-minimizing control in induction motor drives. The induction motor model, which takes hysteresis losses and eddy-current losses as well as the magnetic saturation into account, improves the flux estimation and rotor-flux-oriented control. Based on the corresponding steady-state loss function, a method is proposed for solving the loss-minimizing flux reference at each sampling period. A flux controller augmented with a voltage feedback algorithm is applied for improving the dynamic operation and field weakening. Both the steady-state and dynamic performance of the proposed method is investigated using laboratory experiments with a 2.2-kW induction motor drive. The method improves the accuracy of the loss minimization and torque production, it does not require excessive computational resources, and it shows fast convergence to the optimum flux level.
Description
Keywords
control, core losses, efficiency optimisation, field weakening, induction machine
Other note
Citation
Qu, Zengcai & Ranta, Mikaela & Hinkkanen, Marko & Luomi, Jorma. 2012. Loss-Minimizing Flux Level Control of Induction Motor Drives. IEEE Transactions on Industry Applications. Volume 48, Issue 3. 952-961. ISSN 0093-9994 (printed). DOI: 10.1109/tia.2012.2190818.