Next Article in Journal
Fast Modeling of Large Wave Energy Farms Using Interaction Distance Cut-Off
Previous Article in Journal
An Assessment of the Security of China’s Natural Gas Supply System Using Two Network Models
Article Menu

Export Article

Open AccessArticle
Energies 2015, 8(12), 13726-13740; doi:10.3390/en81212384

Predicting Iron Losses in Laminated Steel with Given Non-Sinusoidal Waveforms of Flux Density

1
College of Electrical Engineering, Zhejiang University, Hangzhou 310058, China
2
China Academy of West Region Development, Zhejiang University, Hangzhou 310058, China
*
Author to whom correspondence should be addressed.
Academic Editor: Leonardo P. Chamorro
Received: 8 September 2015 / Revised: 8 November 2015 / Accepted: 18 November 2015 / Published: 3 December 2015
View Full-Text   |   Download PDF [1881 KB, uploaded 3 December 2015]   |  

Abstract

In electrical machines, iron losses are essential for electromagnetic and thermal designs and analyses. Although many models have been proposed to predict iron losses in magnetic materials, the calculation of iron losses under non-sinusoidal excitations is still an open field. Most works concern the influences of the value, the change rate or the frequency of flux density in the frequency domain. In this paper, we propose an engineering model for predicting loss characteristics with given waveforms of flux density in the time domain. The characteristics are collected from the knowledge of the iron loss in a laminated ring-shaped transformer. In the proposed model, we derive mathematical formulas for exciting currents in terms of flux density by describing the function methods through multi-frequency tests with sinusoidal excitations. The non-linearity of the material is interpreted by branches of conductances accounting for hysteresis and eddy-current losses. Then, iron losses are calculated based on the law of conservation of energy. An experimental system was built to evaluate the magnetic properties and iron losses under sinusoidal and non-sinusoidal excitations. Actual measurement results verify the effectiveness of the proposed model. View Full-Text
Keywords: iron losses; engineering model; non-sinusoidal; waveforms of flux density iron losses; engineering model; non-sinusoidal; waveforms of flux density
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Chen, W.; Ma, J.; Huang, X.; Fang, Y. Predicting Iron Losses in Laminated Steel with Given Non-Sinusoidal Waveforms of Flux Density. Energies 2015, 8, 13726-13740.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Energies EISSN 1996-1073 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top