A modified 2-D multislice FEM for computing the airgap flux density of induction motor with skewed slots

Zhang, Dongdong; Bu, Lixiao; He, Chengyuan; An, Ruichi; Tie-jun, WU

doi:10.1109/iemdc.2017.8002097

Cited by 2 publications

(1 citation statement)

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“…This highlights the potential of the proposed methodology even when compared to FE models. For example, to consider the skewing effect in FE models, one has to either run a 3D FE simulation [25] or perform multiple, multi-slice 2D FE simulations [26], [27]. The 3D FE simulation is far more timeconsuming and expensive, and therefore multi-slice 2D FE simulation is usually preferred to approximate the skewing effect.…”

Section: Integration Of Skewing Effectmentioning

confidence: 99%

Modeling of Classical Synchronous Generators Using Size-Efficient Lookup Tables With Skewing Effect

et al. 2019

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In this paper, an analytical model aimed at reducing computational times for the analysis of classical synchronous generators is proposed and validated. While the proposed model's attractiveness comes from its simple and fast nature, however, it also features excellent levels of accuracy. This is achieved by the model's ability to consider aspects like saturation and space harmonics. Such features are usually investigated with computationally-heavy finite element analysis. The proposed method shows that an appropriate flux linkage map of all the machine windings as a function of currents and rotor position can be used to accurately consider these features at no cost of time or accuracy. Furthermore, the integration of the skewing effect within the model has also been proposed by incorporating it within the flux linkage map. The proposed method is investigated through the use of a 72.5kVA, wound field, salient pole synchronous generator. The results are compared with those of a finite element model and also against experimental measurements on a physical prototype. The advantages of the proposed procedure are discussed, where the model's suitability for carrying out lengthy and multiple simulations and its flexibility are highlighted.INDEX TERMS Harmonics, lookup tables, modelling, skewing effect, synchronous generators.

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Section: Integration Of Skewing Effectmentioning

confidence: 99%