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Research of Power Compensator for Single-Phase Three-Wire Distribution System

Research Project

Project/Area Number 16560254
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 電力工学・電気機器工学
Research InstitutionTokyo Denki University

Principal Investigator

IIDA Shoji  Tokyo Denki University, School of Engineering, Professor, 工学部, 教授 (30057236)

Project Period (FY) 2004 – 2005
Project Status Completed (Fiscal Year 2005)
Budget Amount *help
¥1,900,000 (Direct Cost: ¥1,900,000)
Fiscal Year 2005: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 2004: ¥1,400,000 (Direct Cost: ¥1,400,000)
Keywordssingle-phase three-wire distribution system / half bridge converter / Power Factor Correction converter / Current Balancer / Static Var Generator / harmonic current / Active Filter / multi-functional power compensator / 力率改善 / SVG / 高調波低減 / 過渡応答 / 力率補償
Research Abstract

We have first proposed an improved PFC, Power Factor Correction, converter in this research. It is composed of two half-bridge PFC structures in common with a neutral source line and two smoothing capacitors, and connected to the single-phase three-wire distribution system. It has been made clear that both capacitor voltages can be always in balance without extra control schemes, though the conventional half-bridge PFC converters tend to have the unbalanced ones.
The above distribution system is employed extensively in Japan, USA and the other countries. It has two ac sources with the same voltage and in phase. Numerous ac loads may be connected to the distribution system. As a consumer makes use of these loads at random, two source currents tend to be unbalanced. If many working loads lean to a one-sided source, the power interruption may occur by the operation of circuit breakers. Therefore, even if the load currents are unbalanced, it is desired to equalize both source currents by in … More serting Current Balancer into the distribution system.
The above-proposed PFC converter can operate not only as the ac-dc converter but also as the dc-ac inverter. Furthermore, two respective half-bridge structures, Converter 1 and Converter 2, can be individually controlled. For example, while Converter 1 operates as the ac-dc converter, another Converter 2 can make the dc-ac conversion as the inverter simultaneously. In this research, we have investigated a Current Balancer by applying the above property of the proposed converter.
There may be several ac loads with poor power factor, such as induction motors, in the distribution system. The employment of Static Var Generator must be effective for compensating their reactive powers. Moreover, conventional diode rectifiers with large smoothing capacitors, made use of the popular dc sources in TVs, computers, and so on, flow out the harmonic currents into the ac source, unless the PFC converters. In order to prevent the troubles by harmonics, it is preferred to employ Active Filter into the distribution system. Therefore, we have improved the above Current Balancer to the novel ac-dc converter combined with several power compensator functions. It has been confirmed by the simulations and the experiments that itself can output the dc power to its load, and simultaneously it can perform as Current Balancer, Static Var Generator and Active Filter in order to compensate the power qualities of the single-phase three-wire distribution system, where various ac loads are connected besides the proposed converter. Less

Report

(3 results)
  • 2005 Annual Research Report   Final Research Report Summary
  • 2004 Annual Research Report
  • Research Products

    (14 results)

All 2005 2004

All Journal Article (14 results)

  • [Journal Article] 単相三線式配電系統用電流バランサの一方式2005

    • Author(s)
      藤田崇之, 飯田祥二
    • Journal Title

      電気学会論文誌D(産業応用部門誌) 125巻12号

      Pages: 1145-1152

    • NAID

      130000084342

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] A Multi-Functional Power Compensator for Single-Phase Three-Wire Distribution System2005

    • Author(s)
      T.Fujita, S.Iida
    • Journal Title

      Proceedings of the fifth IASTED International Conference on Power and Energy Systems No.468-170(CD-ROM)

      Pages: 294-299

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] A Current Balancer in Single-Phase Three-Wire Distribution System2005

    • Author(s)
      T.Fujita, S.Iida
    • Journal Title

      Institution of Electrical Engineers of Japan, Transactions on Industry Applications Vol.125, No.12

      Pages: 1145-1152

    • NAID

      130000084342

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] A Multi-Functional Power Compensator for Single-Phase Three-Wire Distribution System2005

    • Author(s)
      T.Fujita, S.Iida
    • Journal Title

      Proceedings of the Fifth LASTED International Conference on Power and Energy Systems No.468-170(CD-ROM)

      Pages: 294-299

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] 無効電力補償機能を有する単相三線式配電系統用電流バランサ2005

    • Author(s)
      藤田崇之, 飯田祥二
    • Journal Title

      平成17年電気学会全国大会論文集 Vol.4, No.167

      Pages: 271-272

    • Related Report
      2005 Annual Research Report
  • [Journal Article] A Multi-Functional Power Compensator for Single-Phase Three-Wire Distribution System2005

    • Author(s)
      Takayuki Fujita, Shoji Iida
    • Journal Title

      The Fifth LASTED International Conference on Power and Energy Systems (Euro PES 2005) No.468-170(CD-ROM)

      Pages: 1-6

    • Related Report
      2005 Annual Research Report
  • [Journal Article] 電力補償機能を有する単相三線用高力率コンバータ2005

    • Author(s)
      藤田崇之, 飯田祥二
    • Journal Title

      平成16年度電気学会産業応用部門大会論文集 Vol.1, No.12

    • Related Report
      2005 Annual Research Report
  • [Journal Article] 単相三線式配電系統用電流バランサの一方式2005

    • Author(s)
      藤田崇之, 飯田祥二
    • Journal Title

      電気学会論文誌D(産業応用部門誌) Vol.125-D, No.12

      Pages: 1145-1152

    • NAID

      130000084342

    • Related Report
      2005 Annual Research Report
  • [Journal Article] 無効電力補償機能を有する単相三線式配電系統用電流バランサ2005

    • Author(s)
      藤田崇之, 飯田祥二
    • Journal Title

      平成17年電気学会全国大会論文集 4巻

      Pages: 271-272

    • Related Report
      2004 Annual Research Report
  • [Journal Article] A Multi-Functional Power Compensator for Single-Phase Three-Wire Distribution System2005

    • Author(s)
      T.Fujita, S.Iida
    • Journal Title

      The 5^<th> IASTED International Conference on Power and Energy Systems (Euro PES 2005) (6月発表予定)

    • Related Report
      2004 Annual Research Report
  • [Journal Article] 単相ハーフブリッジ高力率コンバータにおけるコンデンサ電圧平衡化の一方式2004

    • Author(s)
      藤田崇之, 飯田祥二
    • Journal Title

      電気学会論文誌D(産業応用部門誌) 124巻9号

      Pages: 930-937

    • NAID

      10013538338

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary 2004 Annual Research Report
  • [Journal Article] A Method for Balancing Capacitor Voltages in Single-Phase Half-Bridge PFC Converter2004

    • Author(s)
      T.Fujita, S.Iida
    • Journal Title

      Institution of Electrical Engineers of Japan, Transactions on Industry Applications Vol.124, No.9

      Pages: 930-937

    • NAID

      10013538338

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] 単相三線式配電系統用電流バランサにおける直流コンデンサ電圧の一制御方式2004

    • Author(s)
      藤田崇之, 飯田祥二
    • Journal Title

      平成16年度電気学会産業応用部門大会論文集 1巻

    • Related Report
      2004 Annual Research Report
  • [Journal Article] 単相三線式配電系統用電流バランサにおける多機能化の検討2004

    • Author(s)
      藤田崇之, 飯田祥二
    • Journal Title

      パワーエレクトロニクス学会創設記念大会講演予稿集 1巻

      Pages: 16-16

    • Related Report
      2004 Annual Research Report

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Published: 2004-04-01   Modified: 2016-04-21  

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