中国电气工程学报（英文） ›› 2016, Vol. 2 ›› Issue (1): 52-61.

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Improved Hybrid Method to Calculate Inductances of Permanent Magnet Synchronous Machines with Skewed Stators Based on Winding Function Theory

Yuting Gao, Ronghai Qu*, and Dawei Li   

  1. State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
  • 出版日期:2016-01-20 发布日期:2019-10-31
  • 通讯作者: *, E-mail: ronghaiqu@hust.edu.cn.
  • 作者简介:Yuting Gao was born in China. She received the B.Eng. degree in electrical engineering from Huazhong University of Science and Technology, Wuhan, China, in 2012, where she is currently working toward the Ph.D. degree in the School of Electrical and Electronic Engineering. Her research interests include the design and analysis of novel permanent-magnet and superconducting synchronous machines.
    Ronghai Qu (S’01–M’02–SM’05) was born in China. He received the B.E.E. and M.S.E.E. degrees from Tsinghua University, Beijing, China, in 1993 and 1996, respectively, and the Ph.D. degree in electrical engineering from the University of Wisconsin-Madison, in 2002. In 1998, he joined the Wisconsin Electric Machines and Power Electronics Consortiums as Research Assistant. He became a Senior Electrical Engineer with Northland, a Scott Fetzer Company in 2002. Since 2003, he had been with the General Electric (GE) Global Research Center, Niskayuna, NY, as a Senior Electrical Engineer with the Electrical Machines and Drives Laboratory. He has authored over 120 published technical papers and is the holder of over 50 patents/patent applications. From 2010, he has been a professor with Huazhong University of Science &Technology, Wuhan, China. Prof. Qu is a full member of Sigma Xi. He has been the recipient of several awards from GE Global Research Center since 2003, including the Technical Achievement and Management Awards. He also is the recipient of the 2003 and 2005 Best Paper Awards, third prize, from the Electric Machines Committee of the IEEE Industry Applications Society at the 2002 and 2004 IAS Annual Meeting, respectively.
    Dawei Li (S’12) was born in China. He received the B.Eng. degree in electrical engineering from Harbin Institute of Technology, Harbin, China, in 2010, and the Ph.D. degree in electrical engineering from Huazhong University of Science and Technology, Wuhan, China in 2015. He is currently a lecturer of the School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan, China. His research interests include the design and analysis of novel permanent-magnet brushless machines.
  • 基金资助:
    Supported by National Natural Science Foundation of China under Grant 51520105010

Improved Hybrid Method to Calculate Inductances of Permanent Magnet Synchronous Machines with Skewed Stators Based on Winding Function Theory

Yuting Gao, Ronghai Qu*, and Dawei Li   

  1. State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
  • Online:2016-01-20 Published:2019-10-31
  • Contact: *, E-mail: ronghaiqu@hust.edu.cn.
  • About author:Yuting Gao was born in China. She received the B.Eng. degree in electrical engineering from Huazhong University of Science and Technology, Wuhan, China, in 2012, where she is currently working toward the Ph.D. degree in the School of Electrical and Electronic Engineering. Her research interests include the design and analysis of novel permanent-magnet and superconducting synchronous machines.
    Ronghai Qu (S’01–M’02–SM’05) was born in China. He received the B.E.E. and M.S.E.E. degrees from Tsinghua University, Beijing, China, in 1993 and 1996, respectively, and the Ph.D. degree in electrical engineering from the University of Wisconsin-Madison, in 2002. In 1998, he joined the Wisconsin Electric Machines and Power Electronics Consortiums as Research Assistant. He became a Senior Electrical Engineer with Northland, a Scott Fetzer Company in 2002. Since 2003, he had been with the General Electric (GE) Global Research Center, Niskayuna, NY, as a Senior Electrical Engineer with the Electrical Machines and Drives Laboratory. He has authored over 120 published technical papers and is the holder of over 50 patents/patent applications. From 2010, he has been a professor with Huazhong University of Science &Technology, Wuhan, China. Prof. Qu is a full member of Sigma Xi. He has been the recipient of several awards from GE Global Research Center since 2003, including the Technical Achievement and Management Awards. He also is the recipient of the 2003 and 2005 Best Paper Awards, third prize, from the Electric Machines Committee of the IEEE Industry Applications Society at the 2002 and 2004 IAS Annual Meeting, respectively.
    Dawei Li (S’12) was born in China. He received the B.Eng. degree in electrical engineering from Harbin Institute of Technology, Harbin, China, in 2010, and the Ph.D. degree in electrical engineering from Huazhong University of Science and Technology, Wuhan, China in 2015. He is currently a lecturer of the School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan, China. His research interests include the design and analysis of novel permanent-magnet brushless machines.
  • Supported by:
    Supported by National Natural Science Foundation of China under Grant 51520105010

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摘要： An improved hybrid method combining two dimensional (2D) finite element analysis (FEA) and the analytical method is put forward to calculate the stator winding inductance and synchronous inductance influenced by stator skewing technique. Based on winding function theory (WFT), the improved method proposes two factors to describe variable inductances along the stator skewing angles. Comprehensive simulations are then performed on three interior permanent magnet synchronous machines (IPMSMs), one normal and two skewed machines (half slot and one slot pitch skewing respectively). Extensive experiments are conducted on relevant prototypes with good correlation. Moreover, analysis and comparisons are made as to the influence of different skewing angles on the inductances and torque-speed curves. It is found that Ld increases and Lq decreases by skewing, leading to the reduction of the rotor saliency and maximal torque capability, but increase of the flux weakening capability.

关键词: Finite element analysis(FEA), inductances, permanent magnet synchronous machine (PMSM), skewing, winding function theory (WFT).

Abstract: An improved hybrid method combining two dimensional (2D) finite element analysis (FEA) and the analytical method is put forward to calculate the stator winding inductance and synchronous inductance influenced by stator skewing technique. Based on winding function theory (WFT), the improved method proposes two factors to describe variable inductances along the stator skewing angles. Comprehensive simulations are then performed on three interior permanent magnet synchronous machines (IPMSMs), one normal and two skewed machines (half slot and one slot pitch skewing respectively). Extensive experiments are conducted on relevant prototypes with good correlation. Moreover, analysis and comparisons are made as to the influence of different skewing angles on the inductances and torque-speed curves. It is found that Ld increases and Lq decreases by skewing, leading to the reduction of the rotor saliency and maximal torque capability, but increase of the flux weakening capability.

Key words: Finite element analysis(FEA), inductances, permanent magnet synchronous machine (PMSM), skewing, winding function theory (WFT).