ELECTROMAGNETIC DESIGN AND PERFORMANCE ANALYSIS OF DUAL-STATOR WIND POWER GENERATOR WITH PERMANENT-MAGNET/ CAGE-BARRIER MIXED ROTOR

Liu Hao; Niu Ziyi; Song Yakai

doi:10.19912/j.0254-0096.tynxb.2022-0048

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Acta Energiae Solaris Sinica ›› 2023, Vol. 44 ›› Issue (5) : 432-441. DOI: 10.19912/j.0254-0096.tynxb.2022-0048

ELECTROMAGNETIC DESIGN AND PERFORMANCE ANALYSIS OF DUAL-STATOR WIND POWER GENERATOR WITH PERMANENT-MAGNET/ CAGE-BARRIER MIXED ROTOR

Liu Hao, Niu Ziyi, Song Yakai

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Abstract

Aiming at mainstream the problems of the permanent magnet synchronous generator with the high cost and the brush doubly-fed induction generator with the low reliability, combined with the requirements for the development of wind power generation, a new type of permanent magnet/cage-barrier mixed rotor dual-stator wind power generator with high power density and high reliability is proposed to apply in offshore wind power generation. The power density is related to the key parameters of electric machine, including the power distribution, pole-slot combinations and rotor coupling capability. According to the working principle and design requirements of the electric machine, a 300 kW dual-stator wind power generator with permanent-magnet/cage-barrier mixed rotor （PMCBMR-DSWPG） is designed, with the power distribution, main size determination method, slot-pole combinations and rotor couple capability considered. On this basis, the numerical method is used to analyze and discuss the performance parameters of the PMCBMR-DSWPG under the different operationg conditions, and compares it with experimental test results. At the same trme, the torque density and cost of the proposed PMCBMR-DSWPG is compared with that of the conventional electric machiney. From the results, it verifies the rationality and effectiveness of the design and analysis method in the PMCBMR-DSWPG. Meanwhile, it also proves that the proposed PMCBMR-DSWPG has the advantage of high torque density.

Key words

wind power / synchronous generator / optimize structure / dual-stator / permanent-magnet/cage-barrier mixed rotor / electromagnetic design / torque density

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Liu Hao, Niu Ziyi, Song Yakai. ELECTROMAGNETIC DESIGN AND PERFORMANCE ANALYSIS OF DUAL-STATOR WIND POWER GENERATOR WITH PERMANENT-MAGNET/ CAGE-BARRIER MIXED ROTOR[J]. Acta Energiae Solaris Sinica. 2023, 44(5): 432-441 https://doi.org/10.19912/j.0254-0096.tynxb.2022-0048

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