The Research on Correlated Sensitivity Factors of Flux-Regulation Capability for Axial–Radial Flux-Type Synchronous Motor with Hybrid Poles

Abstract

The axial–radial flux-type synchronous motor with hybrid poles (HPARFTSM) is a new kind of hybrid excitation motor. Besides the advantage of high efficiency, this machine has the flux-regulation capability. Therefore, this machine has wide application prospects in many fields, such as electric vehicles, aerospace, etc. The flux-regulation capability is an important indicator to measure the HPARFTSM. Some factors, such as the parameters of permanent magnets, the width of axial air gap, and the materials of ferromagnetic rings, may affect the flux-regulation capability. It is necessary to study the impacts that these factors have on flux-regulation capability. Taking a 3.5-kW HPARFTSM as an example, the three-dimensional electromagnetic field model was established. The air-gap flux density was numerically solved by finite element method. The calculated results agreed well with the experimental results, which validates the reliability of the computing method. On the basis of aforementioned analyses, the influences of different sensitivity factors on flux-regulation capability were obtained. The conclusions establish the foundation for the optimal design of this kind of machine.

KEYWORDS:

• Air-gap flux density
• Electromagnetic field
• Finite element method
• Flux-regulation capability
• Hybrid excitation motor
• Sensitivity factors

Additional information

Funding

This work was supported in part by the National Natural Science Foundation of China [grant number 51507156], in part by the University Key Scientific Research Programs of Henan province [grant number 17A470005], in part by the Doctoral Program of Zhengzhou University of Light Industry [grant number 2014BSJJ042], in part by the Major Science and Technology Special Projects of Henan Province [grant number 161100211600], in part by the Graduate Scientific and Technology Innovation Foundation of Zhengzhou University of Light Industry [grant number 2016001], in part by the Scientific and Technological Projects of Zhengzhou [grant number 20150442], and in part by the Foundation for Key Teacher of Zhengzhou University of Light Industry.

Notes on contributors

Hongbo Qiu

Hongbo Qiu received the MS degree in 2012 and the PhD degree in 2014 from Harbin University of Science and Technology, Harbin, China. He is currently a professor with the College of Electrical and Electronic Engineering, Zhengzhou University of Light Industry, China. His research interests include research on electromagnetic and thermal analysis on electrical machines, particularly permanent-magnet machines.

E-mail: [email protected]

Wenfei Yu

Wenfei Yu is pursuing toward the MS degree in electrical machines at Zhengzhou University of Light Industry of China. His current research interests include electromagnetic and thermal analysis on electrical machines, particularly on permanent magnetic machines.

E-mail: [email protected]

Wei Wang

Wei Wang is working on distributed power grid connected, electric vehicle charging technology and power saving technology. Presently, he is an engineer at Zhengzhou Power Supply Company of State Grid, Zhengzhou, China.

E-mail: [email protected]

Yuanqing Mu

Yuanqing Mu is pursuing the MS degree at the Zhengzhou University of Light Industry of China. His current research interests include the design and control of hybrid excitation motors.

E-mail: [email protected]

Weili Li

Weili Li received the MS degree from Harbin Institute of Electrical Technology, Harbin, China, in 1993 and the PhD degree from Russia Electric Power Research Institute, Novosibirsk, Russia, in 1997. He is currently a professor with the College of Electrical and Electronic Engineering, Beijing Jiaotong University, Beijing, China. His research interests include synthesis physical field analyses of large and special electrical machines and associated control.

E-mail: [email protected]

Cunxiang Yang

Cunxiang Yang received the MS degree from Southeast University of China, in 1996. He is currently a professor with the College of Electrical and Electronic Engineering, Zhengzhou University of Light Industry, China. His research interests include the diagnosis of electric motors and the control of intelligent electrical apparatus.

E-mail: [email protected]