Title :
Analysis and computation of 3D eddy current in turbogenerator rotor end region at asynchronous operation
Author :
Liang, Y.P. ; Lu, Y.P. ; Zhu, K.N. ; Ge, B.J. ; Cai, W.
Author_Institution :
Harbin Inst. of Technol., China
Abstract :
In this paper, the mathematical model of the 3D magnetic field in the rotor end region of a large turbogenerator at asynchronous operation is presented. The general process of different boundary conditions and 3D adaptive-mesh generation are used for increasing computation speed and reducing memory. Taking a 300 MW turbogenerator as an example, the rotor end field and eddy current density are calculated. The results can be used for analyzing the performance of the generator.
Keywords :
eddy currents; machine theory; magnetic fields; mesh generation; rotors; turbogenerators; 300 MW; 3D adaptive-mesh generation; 3D eddy current; 3D magnetic field; asynchronous operation; boundary conditions; eddy current density; mathematical model; memory reduction; rotor end field; rotor end region; turbogenerator rotor end region; Boundary conditions; Eddy currents; Equations; Magnetic analysis; Magnetic fields; Rotors; Shafts; Stators; Surface waves; Turbogenerators;
Conference_Titel :
Electric Machines and Drives Conference, 2003. IEMDC'03. IEEE International
Print_ISBN :
0-7803-7817-2
DOI :
10.1109/IEMDC.2003.1211297
