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Evaluation of the efficiency of line start permanent magnet machines as function of the operating temperature

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Abstract
The standard squirrel-cage induction machine has nearly reached its maximum efficiency. In order to further increase the energy efficiency of electrical machines, the use of permanent magnets in combination with the robust design and the line start capability of the induction machine is extensively investigated. Many experimental designs have been suggested in literature, but recently, these line-start permanent-magnet machines (LSPMMs) have become off-the-shelf products available in a power range up to 7.5 kW. The permanent magnet flux density is a function of the operating temperature. Consequently, the temperature will affect almost every electrical quantity of the machine, including current, torque, and efficiency. In this paper, the efficiency of an off-the-shelf 4-kW three-phase LSPMM is evaluated as a function of the temperature by both finite-element modeling and by practical measurements. In order to obtain stator, rotor, and permanent magnet temperatures, lumped thermal modeling is used.
Keywords
finite-element method, Energy efficiency, PERFORMANCE, THERMAL-ANALYSIS, 3-PHASE, INDUCTION-MOTOR, temperature distribution, temperature dependence, NONORIENTED ELECTRICAL STEELS, induction motors (IMs), magnetic losses, synchronous motors, permanent-magnet (PM) machines

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MLA
Debruyne, Colin, Maria Polikarpova, Stijn Derammelaere, et al. “Evaluation of the Efficiency of Line Start Permanent Magnet Machines as Function of the Operating Temperature.” IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS 61.8 (2014): 4443–4454. Print.
APA
Debruyne, C., Polikarpova, M., Derammelaere, S., Sergeant, P., Pyrhönen, J., Desmet, J., & Vandevelde, L. (2014). Evaluation of the efficiency of line start permanent magnet machines as function of the operating temperature. IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 61(8), 4443–4454.
Chicago author-date
Debruyne, Colin, Maria Polikarpova, Stijn Derammelaere, Peter Sergeant, Juha Pyrhönen, Jan Desmet, and Lieven Vandevelde. 2014. “Evaluation of the Efficiency of Line Start Permanent Magnet Machines as Function of the Operating Temperature.” Ieee Transactions on Industrial Electronics 61 (8): 4443–4454.
Chicago author-date (all authors)
Debruyne, Colin, Maria Polikarpova, Stijn Derammelaere, Peter Sergeant, Juha Pyrhönen, Jan Desmet, and Lieven Vandevelde. 2014. “Evaluation of the Efficiency of Line Start Permanent Magnet Machines as Function of the Operating Temperature.” Ieee Transactions on Industrial Electronics 61 (8): 4443–4454.
Vancouver
1.
Debruyne C, Polikarpova M, Derammelaere S, Sergeant P, Pyrhönen J, Desmet J, et al. Evaluation of the efficiency of line start permanent magnet machines as function of the operating temperature. IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS. 2014;61(8):4443–54.
IEEE
[1]
C. Debruyne et al., “Evaluation of the efficiency of line start permanent magnet machines as function of the operating temperature,” IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, vol. 61, no. 8, pp. 4443–4454, 2014.
@article{4195964,
  abstract     = {The standard squirrel-cage induction machine has nearly reached its maximum efficiency. In order to further increase the energy efficiency of electrical machines, the use of permanent magnets in combination with the robust design and the line start capability of the induction machine is extensively investigated. Many experimental designs have been suggested in literature, but recently, these line-start permanent-magnet machines (LSPMMs) have become off-the-shelf products available in a power range up to 7.5 kW. The permanent magnet flux density is a function of the operating temperature. Consequently, the temperature will affect almost every electrical quantity of the machine, including current, torque, and efficiency. In this paper, the efficiency of an off-the-shelf 4-kW three-phase LSPMM is evaluated as a function of the temperature by both finite-element modeling and by practical measurements. In order to obtain stator, rotor, and permanent magnet temperatures, lumped thermal modeling is used.},
  author       = {Debruyne, Colin and Polikarpova, Maria and Derammelaere, Stijn and Sergeant, Peter and Pyrhönen, Juha and Desmet, Jan and Vandevelde, Lieven},
  issn         = {0278-0046},
  journal      = {IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS},
  keywords     = {finite-element method,Energy efficiency,PERFORMANCE,THERMAL-ANALYSIS,3-PHASE,INDUCTION-MOTOR,temperature distribution,temperature dependence,NONORIENTED ELECTRICAL STEELS,induction motors (IMs),magnetic losses,synchronous motors,permanent-magnet (PM) machines},
  language     = {eng},
  number       = {8},
  pages        = {4443--4454},
  title        = {Evaluation of the efficiency of line start permanent magnet machines as function of the operating temperature},
  url          = {http://dx.doi.org/10.1109/TIE.2013.2279127},
  volume       = {61},
  year         = {2014},
}

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