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2014 Volume 1
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ARTICLE   Open Access    

Magnetic coupling coefficient determination of IPT systems under operating conditions

  • Department of Electrical and Computer Engineering, The University of Auckland, New Zealand

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  • Author Bio:
    A. Abdolkhani graduated from Dezful University, Iran, with B.E. degree in Electrical Engineering in 2000. After completing his B.E. he worked in the industry for about 6 years in Iran. He received his M.T. degree from the College of Engineering/University of Pune (COEP), India, in Electrical Engineering in 2008. He is currently working toward his Ph.D. with the power electronics group of the University of Auckland, New Zealand. His research interest includes IPT (Inductive Power Transfer) technologies and mainly focused on Contactless Slipring Systems (CSS) for rotary applications. Besides the academic, Ali is working with the team of PowerbyProxi Ltd. on different types of wireless power transfer systems. He holds five patents in wireless/contactless power transfer technology, published about 20 international journal and conference papers.
    A.P. Hu graduated from Xian JiaoTong University, China, with BE and ME degrees in 1985 and 1988, respectively. He received his Ph.D. degree from the University of Auckland in 2001 before he worked as a Lecturer, Director of China-Italy Cooperative Technical Training Centre in Xian, and the General Manager of a technical development company. He holds more than ten patents in wireless/contactless power transfer and microcomputer control technology, published more than 130 referred journal and conference papers, authored the first monograph on wireless inductive power transfer technology, and contributed four book chapters on inductive power transfer modeling/control and electrical machines. Patrick is currently the Director of Graduate Studies in the Department of Electrical and Electronic Engineering, the University of Auckland, New Zealand, and also a guest professor of ChongQing University. His research interests include wireless/contactless power transfer technologies and application of power electronics in renewable energy systems
  • Corresponding author: A. Abdolkhani Email: aabd104@aucklanduni.ac.nz 
  • This study presents a method of determining the magnetic coupling coefficient of inductive power transfer (IPT) systems under real-time operating conditions by measuring the open-circuit voltage and short-circuit current of coupled coils. Besides the theoretical analysis, the proposed method is verified by finite elements simulation and practical evaluation. Both simulation and experimental results have demonstrated that the proposed method can determine the coupling coefficient of both closely and loosely coupled coils with high-quality factors. The method can be used for online monitoring of the coupling condition and real-time power flow controller design of IPT systems.

  • Cite this article

    Abdolkhani A, Hu AP. 2014. Magnetic coupling coefficient determination of IPT systems under operating conditions. Wireless Power Transfer 1(2): 83-86 doi: 10.1017/wpt.2014.10
    Abdolkhani A, Hu AP. 2014. Magnetic coupling coefficient determination of IPT systems under operating conditions. Wireless Power Transfer 1(2): 83-86 doi: 10.1017/wpt.2014.10
    shu
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ARTICLE   Open Access    

Magnetic coupling coefficient determination of IPT systems under operating conditions

  • Department of Electrical and Computer Engineering, The University of Auckland, New Zealand

  • Author Bio:
    A. Abdolkhani graduated from Dezful University, Iran, with B.E. degree in Electrical Engineering in 2000. After completing his B.E. he worked in the industry for about 6 years in Iran. He received his M.T. degree from the College of Engineering/University of Pune (COEP), India, in Electrical Engineering in 2008. He is currently working toward his Ph.D. with the power electronics group of the University of Auckland, New Zealand. His research interest includes IPT (Inductive Power Transfer) technologies and mainly focused on Contactless Slipring Systems (CSS) for rotary applications. Besides the academic, Ali is working with the team of PowerbyProxi Ltd. on different types of wireless power transfer systems. He holds five patents in wireless/contactless power transfer technology, published about 20 international journal and conference papers.
    A.P. Hu graduated from Xian JiaoTong University, China, with BE and ME degrees in 1985 and 1988, respectively. He received his Ph.D. degree from the University of Auckland in 2001 before he worked as a Lecturer, Director of China-Italy Cooperative Technical Training Centre in Xian, and the General Manager of a technical development company. He holds more than ten patents in wireless/contactless power transfer and microcomputer control technology, published more than 130 referred journal and conference papers, authored the first monograph on wireless inductive power transfer technology, and contributed four book chapters on inductive power transfer modeling/control and electrical machines. Patrick is currently the Director of Graduate Studies in the Department of Electrical and Electronic Engineering, the University of Auckland, New Zealand, and also a guest professor of ChongQing University. His research interests include wireless/contactless power transfer technologies and application of power electronics in renewable energy systems
  • Corresponding author: A. Abdolkhani Email: aabd104@aucklanduni.ac.nz 
Wireless Power Transfer  1,  Article number: 10.1017/wpt.2014.10  (2014)  |  Cite this article

Abstract: This study presents a method of determining the magnetic coupling coefficient of inductive power transfer (IPT) systems under real-time operating conditions by measuring the open-circuit voltage and short-circuit current of coupled coils. Besides the theoretical analysis, the proposed method is verified by finite elements simulation and practical evaluation. Both simulation and experimental results have demonstrated that the proposed method can determine the coupling coefficient of both closely and loosely coupled coils with high-quality factors. The method can be used for online monitoring of the coupling condition and real-time power flow controller design of IPT systems.

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    Cite this article
    Abdolkhani A, Hu AP. 2014. Magnetic coupling coefficient determination of IPT systems under operating conditions. Wireless Power Transfer 1(2): 83-86 doi: 10.1017/wpt.2014.10
    Abdolkhani A, Hu AP. 2014. Magnetic coupling coefficient determination of IPT systems under operating conditions. Wireless Power Transfer 1(2): 83-86 doi: 10.1017/wpt.2014.10
    shu

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