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Article

Comparison Study of Induction Motor Models Considering Iron Loss for Electric Drives

1
College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, China
2
Qingdao VECCON Electric Co., Ltd., Qingdao 266200, China
3
College of Electrical Engineering and Automation, Shandong University of Science and Technology, Qingdao 266590, China
*
Authors to whom correspondence should be addressed.
Energies 2019, 12(3), 503; https://doi.org/10.3390/en12030503
Received: 10 January 2019 / Revised: 26 January 2019 / Accepted: 30 January 2019 / Published: 5 February 2019
(This article belongs to the Special Issue Progresses in Advanced Research on Intelligent Electric Vehicles)
In a variety of motor models, the effects of iron-loss (ILS) on motor control accuracy and efficiency are generally ignored. This makes it difficult for the motor control system to obtain accurate control parameters (especially on high speed and low load conditions), and limits the improvement of motor control accuracy. This paper aims to clarify the influence of different ILS modeling and observation methods on motor control performance. Three equivalent models of motors with iron losses are compared. These models are: A parallel model, a series model and the simplified traditional model. Three tests are conducted to obtain the effect of ILS perturbation on ILS estimation results, and then to derive the sensitivity of the motor state and torque to the perturbation. These test conditions include: Ideal no-load, heavy-load, locked-rotor, and ILS perturbations during speed regulation. Simulation results show that the impedance and excitation characteristics of the series model and the parallel model are similar, and the traditional model has the best speed regulation smoothness. The ILS estimation errors of the series model is nearly constant and easy to compensate. For accurate ILS observation results, the series model can achieve better control accuracy. View Full-Text
Keywords: induction motor; iron loss; equivalent circuit; state space model; control precision; operating efficiency induction motor; iron loss; equivalent circuit; state space model; control precision; operating efficiency
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MDPI and ACS Style

Wang, K.; Huai, R.; Yu, Z.; Zhang, X.; Li, F.; Zhang, L. Comparison Study of Induction Motor Models Considering Iron Loss for Electric Drives. Energies 2019, 12, 503. https://doi.org/10.3390/en12030503

AMA Style

Wang K, Huai R, Yu Z, Zhang X, Li F, Zhang L. Comparison Study of Induction Motor Models Considering Iron Loss for Electric Drives. Energies. 2019; 12(3):503. https://doi.org/10.3390/en12030503

Chicago/Turabian Style

Wang, Kang, Ruituo Huai, Zhihao Yu, Xiaoyang Zhang, Fengjuan Li, and Luwei Zhang. 2019. "Comparison Study of Induction Motor Models Considering Iron Loss for Electric Drives" Energies 12, no. 3: 503. https://doi.org/10.3390/en12030503

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