两种不同笼型转子结构无刷双馈电机的稳态运行性能对比

doi:10.19595/j.cnki.1000-6753.tces.161251

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Abstract Brushless doubly-fed machines (BDFMs) havegood applicablepotentials in the fields of variable speed drives and wind power generation. At present, the poor effect of rotor magnetic field modulation and inefficiency of operation still restrict the development of BDFMs with cage rotor. Therefore, this paper firstly analyzed the space harmonic magnetomotive force and its influencing factors for the cage rotor with public bar and end ring. The features of different cage rotor structures and the influences of the different shorted loop on the electromagnetic coupling were fully considered. Furthermore, a new cage rotor structure, called parallel-series hybrid cage rotor, was proposed. And then, two BDFM prototypes with the different rotor structures were calculated and compared for their operating performances by finite element method. Finally, the parallel-series hybrid cage rotor was trial-manufactured and the experiments on the prototypes with the two different rotors were compared for the steady state performances. The results show that the no-load stator winding current is lower in the prototype with parallel-series hybrid cage rotor, and the operating efficiency and power factor are improved significantly. This work can broaden the research thought for the development of BDFMs with cage rotor.

Key words： Brushless doubly-fed machine cage rotor operating performance finite element experimental study

Received: 08 August 2016 Published: 22 December 2017

PACS:

TM344.4

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	Ou Xianpeng
	Han Li
	Han Xuefeng
	Du Jiang
	Li Hui

Cite this article:

Ou Xianpeng,Han Li,Han Xuefeng等. Comparisonof Steady State Operating Performances on Brushless Doubly-Fed Machine with Two Different Cage Rotors[J]. Transactions of China Electrotechnical Society, 2017, 32(23): 61-71.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.161251 OR https://dgjsxb.ces-transaction.com/EN/Y2017/V32/I23/61

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