Title :
Saturation Effects on Unbalanced Magnetic Pull in a Hydroelectric Generator With an Eccentric Rotor
Author :
Perers, Richard ; Lundin, Urban ; Leijon, Mats
Author_Institution :
Uppsala Univ., Uppsala
Abstract :
We report an investigation of saturation effects on the unbalanced magnetic pull in a hydroelectric generator with 20% static eccentricity. We determine the magnetic pull force by the finite-element method in parallel with a simple analytical model for various no-load voltages and loads. Saturation significantly affects the magnitude of the unbalanced magnetic pull for high voltages and large loads.
Keywords :
finite element analysis; hydroelectric generators; machine theory; magnetic forces; rotors; synchronous generators; eccentric rotor; finite-element method; hydroelectric generator; saturation effects; static eccentricity; synchronous generator; unbalanced magnetic pull force; Analytical models; Finite element methods; Hydroelectric power generation; Iron; Magnetic analysis; Magnetic flux; Rotors; Saturation magnetization; Stators; Voltage; Eccentricity; finite-element method; magnetic pull force; saturation; synchronous generator;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2007.903275
