Design optimization of ironless multi-stage axial-flux permanent magnet generators for offshore wind turbines
MetadataShow full item record
This is an Author's Original Manuscript of an article published by Taylor & Francis in Engineering Optimization on 17/06/2016 available online at http://www.tandfonline.com/10.1080/0305215X.2016.1208191
Direct-driven ironless-stator machines have been reported to have low requirements on the strength of the supporting structures. This feature is attractive for offshore wind turbines, where lightweight generators are preferred. However, to produce sufficient torque, ironless generators are normally designed with large diameters, which can be a challenge to the machine’s structural reliability. The ironless multi-stage axial-flux permanent magnet generator (MS-AFPMG) has the advantages of ironless machines but a relatively small diameter. The objective of this article is to present the design optimization and performance investigation of the ironless MS-AFPMG. An existing design strategy, which employs two- and three-dimensional static finite element analyses and genetic algorithm for machine optimization, is improved with the aim of reducing the calculation load and calculation time. This improved design strategy is used to investigate the optimal ironless MS-AFPMG. Some intrinsic features of this kind of machine are revealed.
Showing items related by title, author, creator and subject.
Ting, Huey Tze (2013)Not until recently did we see an enormous surge of interest in the study of machining of advanced ceramics. This has resulted in significant advances lately in their development and usage. Machinable glass ceramics, ...
Performance enhancement of AC machines and permanent magnet generators for sustainable energy applications.Chen, Jianyi (1999)Sustainable energy solutions are aimed to reduce the consumption of fossil fuels by using renewable energy sources and energy efficiency techniques. This thesis presents two new sustainable energy applications in the field ...
Zhang, Z.; Muyeen, S.M.; Al-Durra, A.; Nilssen, R.; Nysveen, A. (2014)Analytical method is widely used for the preliminary design and optimization of electrical machines. It has short calculation time and low computational cost (cost of simulation codes and supporting hardware), but the ...