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1994 Fiscal Year Final Research Report Summary

Study on photovoltaic power system using orthogonal-core type dc-ac converter

Research Project

Project/Area Number 05555080
Research Category

Grant-in-Aid for Developmental Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field 電力工学・電気機器工学
Research InstitutionTohoku University

Principal Investigator

ICHINOKURA Osamu  Tohoku Univ., Electrical Engng., Associate Professor, 工学部, 助教授 (20134017)

Co-Investigator(Kenkyū-buntansha) JINZENJI Toshimasa  Tohoku Univ., Electrical Engng., Professor, 工学部, 教授 (10216260)
Project Period (FY) 1993 – 1994
KeywordsPhotovoltaic power system / DC-AC converter / Orthogonal-core / Nonlinear magnetics
Research Abstract

The purpose of this research is development of the orthogonal-core type dc-ac converter, which is proposed by the author, applicable to practical photovoltaic power system. The results obtained by the study in the time of two years are as follows :
1.Development of solar cell simulator : The simulator is constructed with a variable dc-power-supply and diode array. The I-V curves of the trial simulator for the various solar radiation show good agreement with the actual solar cell array.
2.Considerations on basic operation of orthogonal-core type dc-ac converter : Using the orthogonal-core type dc-ac converter with small capacity of 400 W,the authors clarify the basic operation of the converter. The simulated and experimental results indicate that the converter has some desirable features for a residential photovoltaic power system.
3.Optimum design of the dc-ac converter : The authors present a method for optimum design of the converter. In particular, the authors propose a new analysis method based on a three-dimensional magnetic circuit model of the orthogonal-core. The results are useful for improvement of the dc-ac converter.
4.Development of actual dc-ac converter : Based on the above results, the authors made a 3 kW orthogonal-core type dc-ac converter. The efficiency of the trial converter is 90 %. The converter can receive practical application.
5.Development of a new applications : In this research, the authors considered new applications of the orthogonal-core. One application is a new variable inductor with sinusoidal output and high speed operation using the orthogonal-core. The variable inductor is useful for a VAR compensator with high performances.
The orthogonal-core type dc-ac converter presented here is useful for residential photovoltaic power system because of the converter has desirable features which include simple construction, easiness of maintenance and excellent fault tolerance.

  • Research Products

    (12 results)

All Other

All Publications (12 results)

  • [Publications] 一ノ倉理: "可変直流電源とダイオードで構成した太陽電池模擬電源の特性" 平成5年度電気関係学会東北支部連合大会講演論文集. 2H18. (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 一ノ倉理: "直交磁心の応用機器の最適設計について-直交磁心形DC-AC変換器の場合-" 平成5年度電気関係学会東北支部連合大会講演論文集. 1H13. (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 一ノ倉理: "SPICEによる回路解析" 平成6年電気学会全国大会講演論文集. S19-1-3. (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 一ノ倉理: "三相結線時の直交磁心形可変インダクタンスの特性" 日本応用磁気学会誌. 18. 788-793 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 一ノ倉理: "直交磁心形電力変換器の解析と設計" 電気学会マグネッティックス研究会資料. MAG-94-106. (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 鏡敏朗: "直交磁心形可変インダクタンスの応答特性-シミュレーションに基づく考察-" 平成6年度電気関係学会東北支部連合大会講演論文集. 1H17. (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Osamu Ichinokura: "Solar Cell Simulator Constructed with Variable-dc-power Supply and Diode Array" Tohoku-Section Joint Convention Record of Institutes of Electrical and Information Enginees, Japan. 2H18. (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Osamu Ichinokura: "Considerations on Optimum Design of Applications of Orthogonal-core - DC-AC Converter -" Tohoku-Section Joint Convention Record of Institutes of Electrical and Information Enginees, Japan. 1H13. (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Osamu Ichinokura: "Circuit Simulation with SPICE" National Convention Record I.E.E.Japan. S19-1-3. (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Osamu Ichinokura: "Three-phase Orthogonal-core type Variable Inductor" Journal of the Magnetics Society of Japan. Vol.18. 788-793 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Osamu Ichinokura: "Analysis and Design of Orthognal-core type Power Converter" Research Reports of JIEE Magnetics Commettee. MAG-94-106. (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Toshiro Kagami: "Response Characteristics of Orthogonal-core type Variable Inductor - Consideration with Circuit Simulation -" Tohoku-Section Joint Convention Record of Institues of Electrical and Information Enginees, Japan. 1H17. (1994)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1996-04-15  

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