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Loss Minimization Control Scheme for LIM

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Advanced Linear Machines and Drive Systems

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Abstract

The linear induction motor (LIM) drive system suffers heavily from low efficiency due to its large air-gap length and the partial load conditions, where high loss appears in both LIM and inverter when a constant excitation current is generally engaged. Worse still, the end-effects, including both the transversal edge-effect and longitudinal end-effect, would lead to the decrease of magnetizing inductance and the increase of secondary resistance, resulting in extra loss and further deterioration of efficiency. To reduce the loss of LIM drive system, this chapter introduces several loss-model-based loss minimization control (LMC) schemes for LIM drives. With an equivalent circuit of LIM in which four coefficients are introduced to evaluate the influence of the end-effects, the loss models of LIM and inverter are established. Based on such loss models, the LMC scheme is implemented in a secondary field orientation involving an optimal flux obtained online according to the operating conditions.

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Authors and Affiliations

  1. State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China

    Dong Hu & Wei Xu

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  1. Dong Hu
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  2. Wei Xu
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Correspondence to Dong Hu .

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Editors and Affiliations

  1. State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, China

    Wei Xu

  2. School of Electrical, Computer and Telecommunications Engineering, Faculty of Engineering and Information Sciences, University of Wollongong, Wollongong, NSW, Australia

    Md. Rabiul Islam

  3. Section of Palermo, Institute for Marine Engineering (INM), National Research Council of Italy (CNR), Palermo, Italy

    Marcello Pucci

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Hu, D., Xu, W. (2019). Loss Minimization Control Scheme for LIM. In: Xu, W., Islam, M., Pucci, M. (eds) Advanced Linear Machines and Drive Systems. Springer, Singapore. https://doi.org/10.1007/978-981-13-9616-8_6

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  • DOI: https://doi.org/10.1007/978-981-13-9616-8_6

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-13-9615-1

  • Online ISBN: 978-981-13-9616-8

  • eBook Packages: Physics and AstronomyPhysics and Astronomy (R0)

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