Title :
Some practical issues related to core loss measurement using impedance analyzer approach
Author :
Zhang, Ju ; Skutt, Glenn ; Lee, Fred C.
Author_Institution :
Bradley Dept. of Electr. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA
Abstract :
An automated high-frequency core loss measurement method based on the use of an impedance analyzer was discussed by P.M. Gradzki and F.C. Lee (see HFPC proc., p.108-15, 1991). This measurement setup is convenient to use in high-frequency core characterization, but has certain limitations for some types of core loss measurement. Specifically, additional attention must be paid in order to obtain reliable results for core loss characteristics under DC bias, low frequency core loss measurement, and core loss measurement of low permeability materials. This paper addresses these issues and presents an error analysis of the use of a parallel capacitor for power factor compensation
Keywords :
electric impedance measurement; error analysis; loss measurement; magnetic cores; magnetic permeability; permeability; power factor correction; DC bias; core loss measurement; error analysis; high-frequency core loss measurement; impedance analyzer; low frequency core loss measurement; low permeability materials; parallel capacitor; power factor compensation; Core loss; Frequency measurement; Impedance measurement; Loss measurement; Magnetic cores; Permeability measurement; Phase measurement; Probes; Testing; Voltage;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 1995. APEC '95. Conference Proceedings 1995., Tenth Annual
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-2482-X
DOI :
10.1109/APEC.1995.469075
