High-speed slotless generator, integrated into auxiliary power unit: design and experimental research of the scalable prototype

Аuthors

Vavilov V. E.^*, Bekuzin V. I.^**, Aiguzina V. V.^***

Ufa State Aviation Technical University, USATU, 12, K. Marx str., Ufa, 450008, Republic of Bashkortostan, Russia

*e-mail: s2_88@mail.ru
**e-mail: tiobaldo1@rambler.ru
***e-mail: vtipy@mail.ru

Abstract

The paper presents the design and experimental research of the high-speed slotless generator scalable prototype with strip-wound stator core, integrated into auxiliary power unit. The experimental research and computer simulation of the scaled-size prototype in no-load and on-load modes were conducted. They revealed that this generator demonstrates minimum rotor losses and voltage ripples, as well as high specific energy characteristics. The high-speed slotless generator scalable prototype computer model was developed with Ansoft Maxwell software. Experimental data deviation from computer simulation results does not exceed 5%. From the results of scalable prototype computer simulation a full scale computer model of high-speed slotless generator was developed. The main parameters of the high-speed slotless generator were defined and compared with the parameters of the slot-type high-speed generator. The comparison revealed that the slotless variant demonstrated lower losses (by 600 W) with minimal weight and size parameters (not more than 0.2 kg/kW), high efficiency, minimal negative high harmonics effect, absence of the slot ripples, and the simple production technology. Thus, the obtained data shows that the high-speed slotless generator with he strip-wound stator core made of amorphous alloy can be implemented as the generator integrated into the auxiliary gearless power unit. It proves also the possibility of its application in aircraft industry.

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Keywords:

high-speed slotless generator, auxiliary power unit, amorphous alloy, strip-wound stator core

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