Iron Loss of the Inductors

  • Toshihisa ShimizuEmail author
Part of the Engineering Materials book series (ENG.MAT.)


Since inductors used in power electronics circuits are magnetized under completely different conditions from sinusoidal alternating voltage/current, the manner of occurrence of iron loss is often greatly different. In this chapter, we clarify the difference between the magnetizing modes of the transformer and inductor used in the power electronics circuit and introduce recent research examples on the method of measuring and calculating the iron loss of the inductor.


Iron loss Inductor Transformer Pre-magnetization Open-loop hysteresis curve 


  1. 1.
    Steinmetz, C.P.: On the law of hysteresis. Proc. IEEE 72(2), 197–221 (1984)CrossRefGoogle Scholar
  2. 2.
    Li, J., Abdallah, T., Sullivan, C.R.: Improved calculation of core loss with nonsinusoidal waveforms. In: 36th IEEE IAS Annual Meeting, vol. 4, pp. 2203–2210 (2001)Google Scholar
  3. 3.
    Shimizu, T., Iyasu, S.: A practical iron loss calculation for AC filter inductors used in a PWM inverters. IEEE Trans. Ind. Electron. 56(7), 2600–2609 (2009)CrossRefGoogle Scholar
  4. 4.
    Albach, M., Durbaum, Th., Brockmeyer, A.: Calculating core losses in transformers for arbitrary magnetizing currents—a comparison of different approaches. In: IEEE Proceedings of 27th Applied Power Electronics Conference, vol. 2, pp. 1493–1468 (1996)Google Scholar
  5. 5.
    Matsumori, H., Shimizu, T., Takano, K., Ishii, H.: Evaluation of iron loss of ac filter inductor used in three-phase PEM inverters based on an iron loss analyzer. IEEE Trans. Power Electron. 31, 3080–3095 (2016)CrossRefGoogle Scholar
  6. 6.
    Miwa, Y., Shimizu, T., Takano, K., Ishii, H.: Study on low-loss design of inductor used for buck-chopper circuit based on iron loss characteristics considering pre-magnetization. IEEJ Trans. Ind. Appl. 137(5), 385–394 (2017)CrossRefGoogle Scholar
  7. 7.
    Matsumori, H., Shimizu, T., Takano, K., Ishii, H.: Iron loss calculation of AC filter inductor for three phase PWM Inverters. IEEJ Trans. Ind. Appl. 133(10), 1009–1021 (2013)CrossRefGoogle Scholar

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© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  1. 1.Tokyo Metropolitan UniversityHachiōjiJapan

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