Title :
Examination for a symmetric-flux ferrite core for three-phase converter applications
Author :
Garcia, Jacobo Aguillon ; Moon, Gun Woo
Author_Institution :
DPCL, Korea Adv. Inst. of Sci. & Technol., Daejeon, South Korea
Abstract :
For galvanic isolation of a three-phase power supply, the common choice for cost and volume is the three-legged core. Unfortunately this type of core has an inherent power flux asymmetry attributable to the core geometry. This work focuses on a singular geometrical symmetric-flux core, which naturally solve asymmetry problem due to equal mutual impedances between phases. Magnetic circuit theory, finite-element analysis (FEA), and metric analysis of symmetric and three-legged core are used to illustrate the use and extent of the analytical results.
Keywords :
cores; ferrites; finite element analysis; magnetic circuits; power convertors; power systems; core geometry; finite-element analysis; galvanic isolation; magnetic circuit theory; power flux asymmetry; singular geometrical symmetric-flux core; symmetric-flux ferrite core; three-legged core; three-phase converter applications; three-phase power supply; Costs; Ferrites; Finite element methods; Galvanizing; Geometry; Impedance; Magnetic analysis; Magnetic circuits; Magnetic cores; Power supplies;
Conference_Titel :
Telecommunications Energy Conference, 2009. INTELEC 2009. 31st International
Conference_Location :
Incheon
Print_ISBN :
978-1-4244-2490-0
Electronic_ISBN :
978-1-4244-2491-7
DOI :
10.1109/INTLEC.2009.5351760