Experimental Evaluation of Maximum Achievable Efficiency for Multiple-Receiver Inductive Power Transfer Systems

• SUGIYAMA Reona

  Graduate School of Information Science, Nara Institute of Science and Technology

• DUONG Quang-Thang

  Graduate School of Information Science, Nara Institute of Science and Technology

• OKADA Minoru

  Graduate School of Information Science, Nara Institute of Science and Technology

Abstract

Optimal loads and maximum achievable efficiency for multiple-receiver inductive power transfer (IPT) system have been formulated by theoretical studies in literatures. This paper presents extended analysis on system behavior at optimal load condition and extensive S-parameter evaluation to validate the formulas. Our results confirm that at the optimal load condition, the system is in a resonance state; the impact of cross-coupling among receivers is completely mitigated; and the efficiency reaches its maximum expressed by an efficiency angle tangent, in an manner analogous to the well-known kQ-theory for single-receiver IPT. Our contributions do not lie in practical applications of multiple-receiver IPT but in establishing principles for design and benchmarking the system.

Journal

• IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences

  IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences E101.A (11), 1861-1868, 2018-11-01

  The Institute of Electronics, Information and Communication Engineers

Keywords

• inductive power transfer
• multiple-receiver
• optimal loads
• maximum achievable efficiency
• kQ-product

Details

• CRID: 1390564238038884864
• NII Article ID: 130007502859
• DOI: 10.1587/transfun.e101.a.1861
• ISSN: 17451337
• ISSN: 09168508
• Web Site: https://www.jstage.jst.go.jp/article/transfun/E101.A/11/E101.A_1861/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed