Open AccessElectromagnetic and mechanical design of module dual stator brushless doubly‐fed generator for offshore wind turbine
Author(s) -
Wang Hao,
Yu Siyang,
Jin Shi,
Zhang Fengge
Publication year - 2021
Publication title -
iet renewable power generation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.005
H-Index - 76
eISSN - 1752-1424
pISSN - 1752-1416
DOI - 10.1049/rpg2.12050
Subject(s) - stator , turbine , offshore wind power , rotor (electric) , generator (circuit theory) , correctness , finite element method , electric generator , wind power , power (physics) , reliability (semiconductor) , computer science , engineering , control theory (sociology) , mechanical engineering , electrical engineering , structural engineering , physics , control (management) , quantum mechanics , artificial intelligence , programming language
In order to meet the higher requirements (i.e. large scale, high reliability and direct drive) of generators used for offshore wind turbine, a novel direct drive module dual stator brushless doubly‐fed generator (DSBDFG) with cage‐barrier rotor having many outstanding merits is proposed in this paper. The fundamental structure, operation principle and power flow are presented. The electromagnetic design methods of the proposed generator including power distribution of inner and outer machines, the relationship of pole number, slot number and module number, and winding design are thoroughly investigated. In order to solve the problems in structure brought by module design and reduce the weight as much as possible, a mechanical construction applied for module DSBDFG is proposed. Finally, the correctness of the proposed electromagnetic design method and the stability of the proposed mechanical construction are verified based on finite element analysis respectively.