PROBLEM TO BE SOLVED: To provide an electric power conversion device which supplies electric power to a feeder line when an electric power supply is lost and, thereby, can retreat a train on the feeder line to a nearest station.SOLUTION: An electric power conversion device which is provided on a facility for supplying DC electric power to a feeder line via a diode rectifier from an electric power supply in order to supply and recover electric power upon acceleration/deceleration of a train upon the feeder line includes: a DC/DC electric power converter which connects a DC circuit of the feeder line side to both ends of a vertical arm by means of a switching element provided with a reverse parallel diode and connects an electric power storage device side DC circuit between connection points of the vertical arm by means of the switching element and a lower arm; and a smoothing capacitor installed in parallel to the DC circuit of the feeder line side. Therein, a series circuit of an electric power storage device and a step-up reactor is disposed on the electric power storage device side DC circuit and, when an electric power supply is lost, the electric power storage device side DC circuit is connected to the DC/DC electric power converter to charge the smoothing capacitor and, subsequently, the DC circuit of the feeder line side is connected to the feeder line to start firing of the switching element.SELECTED DRAWING: Figure 1

    【課題】電源喪失時にき電線に電力を供給してき電線上の電車を最寄駅まで退避させることが可能な電力変換装置を提供する。【解決手段】電源からダイオード整流器を介して直流電力をき電線に供給する設備に設けられ、き電線上の列車の加減速時の電力を供給し回収するための電力変換装置であって、当該電力変換装置は、逆並列ダイオードを備えたスイッチング素子による上下アームの両端に、き電線側の直流回路を接続し、スイッチング素子による上下アームの接続点と下アームの間に電力貯蔵装置側直流回路を接続するDC/DC電力変換器と、き電線側の直流回路に並列設置された平滑コンデンサを備え、電力貯蔵装置側直流回路に電力貯蔵装置と昇圧リアクトルの直列回路を備え、電源の喪失状態において、電力貯蔵装置側直流回路を前記DC/DC電力変換器に接続して平滑コンデンサを充電し、次にき電線側の直流回路をき電線に接続して、スイッチング素子の点弧を開始することを特徴とする。【選択図】図1


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    Title :

    ELECTRIC POWER CONVERSION DEVICE


    Additional title:

    電力変換装置


    Contributors:

    Publication date :

    2016-05-09


    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 / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen



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