Title :
Improved calculation of core loss with nonsinusoidal waveforms
Author :
Li, Jieli ; Abdallah, Tarek ; Sullivan, Charles R.
Author_Institution :
Dartmouth Coll., Hanover, NH, USA
Abstract :
An extension to the Steinmetz equation is proposed, to enable estimation of hysteresis losses in magnetic core materials with nonsinusoidal flux waveforms. The new formulation is shown to avoid anomalies present in previous modified-Steinmetz-equation calculations of loss with nonsinusoidal waveforms. Comparison with experimental measurements in MnZn ferrite shows improved accuracy. The result may be optionally formulated in terms of an effective frequency and an effective amplitude, and options for defining these are discussed.
Keywords :
ferrite devices; ferrites; magnetic cores; magnetic flux; magnetic hysteresis; magnetic leakage; manganese alloys; zinc alloys; MnZn; MnZn ferrite; Steinmetz equation extension; core loss calculation; hysteresis losses; magnetic core materials; nonsinusoidal flux waveforms; nonsinusoidal waveforms; Core loss; Eddy currents; Electric machines; Equations; Ferrites; Frequency; Inductors; Magnetic hysteresis; Magnetic losses; Magnetic materials;
Conference_Titel :
Industry Applications Conference, 2001. Thirty-Sixth IAS Annual Meeting. Conference Record of the 2001 IEEE
Conference_Location :
Chicago, IL, USA
Print_ISBN :
0-7803-7114-3
DOI :
10.1109/IAS.2001.955931
