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Study on circuit performance of parallel-connected power conversion circuit with thermoelectric module

Research Project

Project/Area Number 20K12001
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 61040:Soft computing-related
Research InstitutionOkayama University of Science

Principal Investigator

Asahara Hiroyuki  岡山理科大学, 工学部, 准教授 (50709615)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2021: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2020: ¥260,000 (Direct Cost: ¥200,000、Indirect Cost: ¥60,000)
Keywords熱電池 / 電力コンディショニング / 非線形現象 / 安定性解析
Outline of Research at the Start

本研究は、エンジンを有する電動車両の燃費改善に資する研究取組である。自動車のエンジン排気系ユニットは、排気ガスと水冷により数百度の温度差が生じる。これまでの研究取組により、温度差から電気を発電する「熱電池」をこの種の車両の排気系ユニットへ取り付け、バッテリへ電力回生する「排熱発電システム」の開発を産学連携して進めてきた。しかし、実用化が想定される発電環境においては、温度分布の不均一性(温度ムラ) により、熱電池の出力電力特性に局所解が生じる可能性がある。本申請課題は、学術的な観点から温度ムラ発生時の排熱発電システムの回路動作を解析し、工学的応用につなげることを目的とする。

Outline of Final Research Achievements

This research focuses on power conversion circuits with thermoelectric module (TEM). A parallel connected DC-DC converter with TEM is investigated numerically and experimentally. Non-uniform temperature distribution was artificially reproduced and MPPT control was performed using a DC-DC converter. It has been obtained that the experimental results of the power utilization rate and evaluated the circuit performance. In addition, nonlinear phenomena that occur in this circuit was analyzed, and the relationship between the power utilization rate and the nonlinear phenomena was investigated.

Academic Significance and Societal Importance of the Research Achievements

近年、CO2排出量削減に向けた取り組みが強化され、環境発電デバイスの一種であり、排熱を電力へ回生する「熱電発電デバイス」への注目が高まっている。一般的に、熱電発電デバイスを含めた環境発電デバイスの多くは、電力コンディショニングのために電力変換回路へ接続される。本研究は、学術的観点から熱電発電デバイスへ接続した電力変換回路の動作解析を行っている。特に、熱電デバイスが温度ムラのある実環境で使用されることを想定し、回路実験および数値シミュレーションの両観点から調査を行っており、得られた研究成果は回路設計へとフィードバックされる。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (14 results)

All 2023 2022 2021 2020

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Open Access: 1 results) Presentation (9 results) (of which Int'l Joint Research: 5 results)

  • [Journal Article] A unique bifurcation structure in one-dimensional model of current-controlled step-up DC-DC converter with photovoltaic module2023

    • Author(s)
      S. Uchino, S. Aoki, T. Kousaka, H. Asahara
    • Journal Title

      Transactions of ISCIE

      Volume: In press

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Stability Analysis of a Simple Model of DC-DC Converter with TEM2021

    • Author(s)
      麻原寛之,内野翔太,高坂拓司
    • Journal Title

      SYSTEMS, CONTROL AND INFORMATION

      Volume: 65 Issue: 6 Pages: 213-218

    • DOI

      10.11509/isciesci.65.6_213

    • NAID

      130008129368

    • ISSN
      0916-1600, 2424-1806
    • Year and Date
      2021-06-15
    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Stability analysis based on monodromy matrix for switched dynamical systems2021

    • Author(s)
      H. Asahara, T. Kousaka
    • Journal Title

      Nonlinear Theory and Its Applications, IEICE

      Volume: 12 Issue: 3 Pages: 237-256

    • DOI

      10.1587/nolta.12.237

    • NAID

      130008060725

    • ISSN
      2185-4106
    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Stability Analysis Based on Monodromy Matrix for Switched Dynamical Systems2021

    • Author(s)
      H. Asahara, T. Kousaka
    • Journal Title

      Nonlinear Theory and Its Applications (NOLTA) IEICE

      Volume: E12-N

    • NAID

      130008060725

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] 排熱発電用電力変換回路2021

    • Author(s)
      麻原寛之,内野翔太,高坂拓司
    • Journal Title

      システム/制御/情報

      Volume: 65 Pages: 213-218

    • NAID

      130008129368

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] Comparative study of nonlinear dynamics in DC-DC converter with TEM2022

    • Author(s)
      D. Hozumi, S. Uchino, T. Kousaka, H. Asahara
    • Organizer
      Proc. of The 19th International SoC Conference
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A simple approach of stability analysis and MPPT control in DC-DC converter with TEM2022

    • Author(s)
      Y. Furutani, T. Kousaka, S. Uchino, H. Asahara
    • Organizer
      Proc. of The 19th International SoC Conference
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Study of nonlinear phenomena in current-mode controlled DC-DC converter with TEM via a closed-form mapping without approximation2022

    • Author(s)
      D. Hozumi, S. Uchino, T. Kousaka, H. Asahara
    • Organizer
      Proc. of 2022 International Symposium on Nonlinear Theory and Its Applications
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Relationship of Bifurcation and Power Conversion Efficiency in DC-DC Converter with TEM2021

    • Author(s)
      S. Uchino, T. Kousaka, H. Asahara
    • Organizer
      The 5th IEEE International Future Energy Electronics Conference(IFEEC2021)
    • Related Report
      2021 Research-status Report
  • [Presentation] An Estimation Method for Controlling Unstable Periodic Orbit Without Using Poincar Map2021

    • Author(s)
      S. Aoki, T. Kousaka, S. Uchino, D. Hozumi, H. Asahara,
    • Organizer
      The 18th International SoC Conference (ISOCC 2021)
    • Related Report
      2021 Research-status Report
  • [Presentation] Analysis of a Simple Model of DC_DC Converter with TEM2021

    • Author(s)
      S. Uchino, T. Kousaka, H. Asahara
    • Organizer
      Proc. of 2021 International Workshop on Nonlinear Circuits, Communications and Signal Processing
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] 熱電池を有するDC-DCコンバータの安定性解析とパラメータ設計2021

    • Author(s)
      内野翔太, 飯田努, 高坂拓司, 麻原寛之
    • Organizer
      令和3年度電気学会全国大会講演論文集
    • Related Report
      2020 Research-status Report
  • [Presentation] 太陽電池を有するDC-DCコンバータにみられる分岐構造に関する一考察2021

    • Author(s)
      英慎一朗, 高坂拓司, 内野翔太, 青木諭志, 麻原寛之
    • Organizer
      2021年電子情報通信学会総合大会講演論文集
    • Related Report
      2020 Research-status Report
  • [Presentation] Bifurcation Phenomena in a Simple Model of DC-DC Converter with Photovoltaic Module2020

    • Author(s)
      S. Aoki, S. Hanafusa, S. Uchino, H. Ohtagaki, T. Kousaka, H. Asahara
    • Organizer
      Proc. of 2020 International Symposium on Nonlinear Theory and Its Applications
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research

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Published: 2020-04-28   Modified: 2024-01-30  

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