论文信息 - 3-D eddy current analysis in the end region of a turbogenerator by using reduced magnetic vector potential

3-D eddy current analysis in the end region of a turbogenerator by using reduced magnetic vector potential

This paper presents a novel strategy to model the full three-dimensional structures of end region of huge turbine-generators with power level up to 1000MW. The 3-D nonlinear anisotropic magnetic field including the eddy current losses is calculated by utilizing the reduced magnetic vector potential formulation. With the help of Biot-Savart's law, the magnetic field caused by currents in the stator and rotor windings, which are very complex in geometric shapes, can be calculated in a far easy way. The flux density distribution in the end region and the eddy current distribution in the structural parts under different operating conditions are presented

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