Two-Battery HEECS Inverter with over 99.7% Efficiency at 2.2kW Output and Measurement Accuracy Based on Loss Breakdown

• Kawamura Atsuo

  Department of Electrical and Computer Engineering, Yokohama National University

• Nakazaki Satoshi

  Department of Electrical and Computer Engineering, Yokohama National University

• Ito Shogo

  Department of Electrical and Computer Engineering, Yokohama National University

• Nagai Sakahisa

  Graduate School of Frontier Science, The University of Tokyo

• Obara Hidemine

  Department of Electrical and Computer Engineering, Yokohama National University

Abstract

A DC-AC conversion efficiency of over 99.7% is experimentally measured using a two battery high efficiency energy conversion system (HEECS) inverter. The accuracy of the efficiency measurement is evaluated by two methods: the direct measurement method and the loss breakdown method. After several measurements, calculations and analyses it is concluded that the measurement error based on the loss breakdown method is 0.04%.

Journal

• IEEJ Journal of Industry Applications

  IEEJ Journal of Industry Applications 9 (6), 663-673, 2020-11-01

  The Institute of Electrical Engineers of Japan

Keywords

• inverter
• high efficiency
• multi-level
• HEECS

Details

• CRID: 1390849376472657920
• NII Article ID: 130007934370
• DOI: 10.1541/ieejjia.20001291
• ISSN: 21871108
• ISSN: 21871094
• NDL BIB ID: 030719156
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I030719156
• Web Site: https://www.jstage.jst.go.jp/article/ieejjia/9/6/9_20001291/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed