Title :
Design and research of 5 MW Permanent Magnet Synchronous Generators for wind turbines
Author :
Bei Wei ; Xiuhe Wang ; Xiulei Zhao
Author_Institution :
Coll. of Electr. Eng., Shandong Univ., Jinan, China
Abstract :
A kind of 5MW Permanent Magnet Synchronous Generator (PMSG) is designed in this paper, which structure and main parameters is determined through the analysis of key design technology of PMSG. By combining the analytical method and finite element method (FEM) to analyze the factors influencing the cogging torque, several methods are obtained to reduce the cogging torque, so as to optimize the structure of the 5MW PMSG. Through the analysis of the PMSG by using the finite-element analysis (FEA) software, the cogging torque, rated electromagnetic torque ripple, voltage waveform distortion rate and rated power all comply with the design requirements. At last, demagnetization under the condition of sudden short-circuit is analyzed.
Keywords :
demagnetisation; finite element analysis; permanent magnet generators; synchronous generators; wind turbines; FEA software; FEM; PMSG; cogging torque; demagnetization; electromagnetic torque ripple; finite element method; finite-element analysis software; permanent magnet synchronous generator; power 5 MW; short-circuit analysis; voltage waveform distortion rate; wind turbine; Forging; Permanent magnets; Rotors; Stators; Synchronous generators; Torque;
Conference_Titel :
Electrical Machines and Systems (ICEMS), 2014 17th International Conference on
Conference_Location :
Hangzhou
DOI :
10.1109/ICEMS.2014.7013531
