Title :
Analysis of magnetic fields of a delta type shunt reactor
Author :
Ishihara, T. ; Morino, T. ; Todaka, T.
Author_Institution :
Dept. of Electr. Eng., Doshisha Univ., Kyoto, Japan
fDate :
7/1/1989 12:00:00 AM
Abstract :
A model is given and a periodic boundary condition is adopted to analyze magnetic fields of a delta type shunt reactor. An approximate three-dimensional finite-element method that combines some axisymmetric fields and a two-dimensional field is then applied. It is found that the flux in the yoke concentrates on the part that is near the legs. The flux density heightens as the legs is approached, and rotational magnetic flux occurs in the parts joined by a leg and the yoke. All flux density waveforms contain mainly third harmonics. It is found that there is rotating flux in the yoke, which causes increased core losses
Keywords :
magnetic fields; reactors (electric); approximate 3D finite element method; axisymmetric fields; core losses; delta type shunt reactor; flux density waveforms; magnetic fields; periodic boundary condition; rotational magnetic flux; third harmonics; two-dimensional field; yoke; Finite element methods; Inductors; Influenza; Magnetic analysis; Magnetic cores; Magnetic fields; Magnetic flux; Shunt (electrical); Silicon; Steel;
Journal_Title :
Magnetics, IEEE Transactions on