Title :
Field and Circuit Modeling of Rotor Eccentricity Effects in Surface Permanent Magnet Generator
Author :
Haniotis, A. ; Thivet, N. ; Jonnet, E. ; Kladas, A.
Author_Institution :
Fac. of Electr. & Comput. Eng., Athens Nat. Tech. Univ.
Abstract :
This paper develops a model for torque pulsations simulation in a permanent magnet synchronous generator, due to the rotor´s eccentricity. One pole of the machine is represented in finite element magnetic field analysis in order to define stator voltage time variations with the air-gap width. A circuit model is also developed in Matlab/Simulink environment enabling to account for rotor eccentricity of the generator in the complete wind turbine model. The proposed model accuracy has been validated by comparing the simulated results with measurements on a prototype. This model enables to define control strategies reducing torque pulsations
Keywords :
air gaps; finite element analysis; magnetic fields; permanent magnet generators; rotors; stators; synchronous generators; torque; wind turbines; Matlab-Simulink environment; air-gap width; circuit modeling; field modeling; finite element magnetic field analysis; permanent magnet synchronous generator; rotor eccentricity effects; stator voltage time variations; torque pulsation reduction; torque pulsations simulation; wind turbine model; Circuit simulation; Finite element methods; Magnetic analysis; Magnetic circuits; Magnetic fields; Mathematical model; Permanent magnets; Rotors; Synchronous generators; Torque;
Conference_Titel :
Electromagnetic Field Computation, 2006 12th Biennial IEEE Conference on
Conference_Location :
Miami, FL
Print_ISBN :
1-4244-0320-0
DOI :
10.1109/CEFC-06.2006.1633071
