This article proposes a novel hybrid excitation brushless dc generator (HEBDCG), in which the main generator part and the induced excitation part share one set of the stator/rotor core (namely integrated-induction-based HEBDCG, i.e., II-HEBDCG). Hence the auxiliary magnetic path and additional airgap do not exist and then high space utilization are achieved. Moreover, the consequent-pole rotor featuring permanent magnet (PM) pole-iron pole-iron pole-iron pole (N-I-I-I) is adopted to utilize the high permeability of iron poles, which is favorable to the flux and voltage regulation. The selection rules of pole and slot combination are given by comprehensively considering the unbalance magnetic force and the relationship of the electrical coupling between the main generator part and the induction excitation part. Then, the principle of flux regulation is revealed by equivalent magnetic circuit, and validated by finite element (FE) analysis. In addition, the influences of key factors including the distribution of induction winding on the performance are discussed, and both the no-load regulation, load characteristics and armature reaction are investigated. Furthermore, the proposed II-HEBDCG is compared to the conventional three-stage brushless dc generator (TSBDCG). It is shown that the proposed II-HEBDCG achieves steady excitation current and flexible regulation of output voltage, and obtains both the higher output power and efficiency than the TSBDCG. Finally, a prototype is manufactured and measured to validate these analyses.


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    Title :

    Integrated-Induction-Based Hybrid Excitation Brushless DC Generator With Consequent-Pole Rotor


    Contributors:
    Li, J. (author) / Wang, K. (author) / Zhu, S. S. (author) / Liu, C. (author)


    Publication date :

    2022-06-01


    Size :

    8057909 byte




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



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