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Analysis and indexing of transient stability contribution characteristics of the power system required for advanced grid-connected inverters

Research Project

Project/Area Number 19K23521
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0302:Electrical and electronic engineering and related fields
Research InstitutionToyo University

Principal Investigator

Hirase Yuko  東洋大学, 理工学部, 准教授 (50843778)

Project Period (FY) 2019-08-30 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords慣性力 / 分散電源 / インバータ連系 / 指標 / 同期発電機 / 仮想同期発電機 / 連系要件 / 指標化 / マイクログリッド / 過渡安定性 / Matlab/SIMULINK / 同期化力 / IEEE 9BUS / 過渡安定 / 仮想同期 / 系統貢献 / 実証試験
Outline of Research at the Start

種々の分散電源が接続される系統において,静止型インバータや蓄電池等による,系統安定化のための貢献機能が求められているが、求められる貢献機能は定常状態と過渡状態とでは異なり,特に過渡貢献機能に対しては、より複雑で詳細な分析と検証が必要になる。
そこで本研究では,(a) 電力系統の過渡動揺・安定の物理的・数学的理論を明らかにし,(b) メーカが上記貢献機能を実装するための代表手法を検証して提案するとともに,(c) 一方で,系統管理者が策定する普遍的な連系要件の指針作りを行う。(d) さらに,連系インバータによる過渡貢献効果の検証手法についても研究し,実機設備を用いてこれを実証する。

Outline of Final Research Achievements

A simulation model for MATLAB/Simulink of grid-connected inverter and battery were created. The inverter equipped a control method called "virtual synchronous generator (VSG) control", which is a control method that simulates the swing equation of a synchronous generator on a program. The storage battery was used to mimic the inertial energy of the inverter. The large-scaled system consists of the above model was created to investigated the system frequency behavior when load/generated power fluctuations occur. In addition, for the purpose of indexing the parameters that determine the characteristics of the distributed power sources required for system stabilization, detailed analysis of various torques of each power supply, and the correlation between time, center of inertial frequency, and control parameters was visualized. IEEE 9 bus model was used.

Academic Significance and Societal Importance of the Research Achievements

電力系統にインバータ連系される静止形の分散電源が大量導入されると、慣性力をもつ回転形の同期発電機の比率が相対的に減り、系統全体の安定度が低下する。この事実は、分散電源に利用される再生可能エネルギーの利用を妨げるため、再エネ電源の普及と電力の安定かつ安全な供給を両立しなくてはいけない。
さらに、インバータ電源の制御変数や機器定数はメーカ開示されないことや、天候や時間に左右される再エネ電源が接続と解列を任意に行うことで系統の状態が常に変化することなども、再エネ電源の普及を妨げている。
本研究成果のインバータ挙動の指標を基に、系統事業者が連系インバータに必要十分な要求を制定することが可能になる。

Report

(3 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • Research Products

    (8 results)

All 2021 2020 2019

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 3 results) Presentation (5 results) (of which Int'l Joint Research: 2 results,  Invited: 2 results)

  • [Journal Article] Characteristic Analysis and Indexing of Multimachine Transient Stabilization Using Virtual Synchronous Generator Control2021

    • Author(s)
      Hirase Yuko、Uezaki Kazusa、Orihara Dai、Kikusato Hiroshi、Hashimoto Jun
    • Journal Title

      Energies

      Volume: 14 Issue: 2 Pages: 366-366

    • DOI

      10.3390/en14020366

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Virtual synchronous generator based frequency control in interconnected microgrids2020

    • Author(s)
      Hirase Yuko、Ohara Yuki、Bevrani Hassan
    • Journal Title

      Energy Reports

      Volume: 6 Pages: 97-103

    • DOI

      10.1016/j.egyr.2020.10.044

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Guidelines for required grid-supportive functions in grid-tied inverters with distributed energy resources2019

    • Author(s)
      Yuko Hirase
    • Journal Title

      IET Energy Systems Integration

      Volume: 1-4 Issue: 4 Pages: 236-245

    • DOI

      10.1049/iet-esi.2019.0022

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 仮想同期発電機制御による多機系統過渡安定度分析と指標化2021

    • Author(s)
      上﨑和沙 , 大内和樹 , 平瀬祐子 , 織原大 , 喜久里浩之 , 橋本潤
    • Organizer
      令和3年電気学会全国大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Interconnected Microgrids Frequency Control Using Extended Virtual Synchronous Generators2020

    • Author(s)
      Yuki Ohara, Hassan Bevrani, Yuko Hirase
    • Organizer
      令和2年 電気学会 電力・エネルギー部門大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Virtual Synchronous Generator Based Frequency Control in Interconnected Microgrids2020

    • Author(s)
      Yuko Hirase , Yuki Ohara , Hassan Bevrani
    • Organizer
      2020 7th International Conference on Power and Energy Systems Engineering
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 電力系統の小擾乱に対する 多慣性電源同期化力の影響に関する考察2020

    • Author(s)
      市川拓巳、平瀬祐子
    • Organizer
      令和2年電気学会全国大会 (東京電機大学)
    • Related Report
      2019 Research-status Report
  • [Presentation] Development History and Prospects of Virtual Synchronous Machine (VSM)2019

    • Author(s)
      Yuko Hirase
    • Organizer
      1st International Forum on Future Vision and New Technology Energy (Daejeon, Korea)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited

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Published: 2019-09-03   Modified: 2022-01-27  

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