To provide a direct current feeding system which can compensate voltage drop of a direct current feeding line in line area where there is only a transformer station at one end of a track and adopts a high voltage direct current feeding system.SOLUTION: A direct current feeding line T receives supply of direct current feeding voltage VT from a transformer station 10. A high voltage direct current feeding line F is arranged in parallel to the direct current feeding line T and includes a higher direct current feeding voltage VF than the direct current feeding voltage VT. A DC/DC conversion device 20A situates between the transformer station 10 and terminal end of the direct current feeding line T. A DC/DC conversion device 20B situates between the DC/DC conversion device 20A and a terminal end of the direct current feeding line T. The DC/DC conversion device 20B executes a bidirectional direct current/direct current conversion so as to give and receive direct current power according to deviation between the direct current feeding voltage VT and a first reference voltage between the direct current feeding line T and the high voltage direct current feeding line F. The DC/DC conversion device 20A executes bidirectional direct current/ direct current conversion so that the direct current feeding voltage VF becomes a second reference voltage.SELECTED DRAWING: Figure 1

    【課題】路線の一方端にしか変電所がない線区における直流き電線の電圧降下を補償することができる、高電圧直流き電方式を採用した直流き電システムを提供する。【解決手段】直流き電線Tは、変電所10から直流き電電圧VTの供給を受ける。高電圧直流き電線Fは、直流き電線Tに並設され、直流き電電圧VTよりも高い直流き電電圧VFを有する。DC/DC変換装置20Aは、変電所10と直流き電線Tの終端との間に位置する。DC/DC変換装置20Bは、DC/DC変換装置20Aと直流き電線Tの終端との間に位置する。DC/DC変換装置20Bは、直流き電圧VTと第1の参照電圧との偏差に応じた直流電力を、直流き電線Tと高電圧直流き電線Fとの間で授受するように双方向の直流/直流変換を実行する。DC/DC変換装置20Aは、直流き電電圧VFが第2の参照電圧となるように双方向の直流/直流変換を実行する。【選択図】図1


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    Title :

    DIRECT CURRENT FEEDING SYSTEM


    Additional title:

    直流き電システム


    Contributors:

    Publication date :

    2024-04-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60M Speiseleitungen oder Vorrichtungen am Gleis für elektrisch angetriebene Fahrzeuge , POWER SUPPLY LINES, OR DEVICES ALONG RAILS, FOR ELECTRICALLY-PROPELLED VEHICLES / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung



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