PROBLEM TO BE SOLVED: To provide a direct current feeding system which can suppress generation of a circulation current with a small-sized configuration.SOLUTION: A direct current feeding system is equipped with: a first current detection part 16 which detects an inverter current flowing to a regenerative inverter 12; a second current detection part 6 which detects a rectifier current flowing to a rectifier 10; and a controller 14 for controlling the regenerative inverter 12. The controller 14 includes: a voltage control part 50 which so makes a voltage command as to be a preset fixed value, and so controls the regenerative inverter 12 that a cable voltage to be detected by a voltage detection part 54 is coincident with the voltage command; a circulation current detection part 40 which detects a circulation current flowing into the regenerative inverter 12 from the rectifier 10 on the basis of an inverter current and a rectifier current; and a correction part 42 which so corrects the voltage command that the circulation current detected by the circulation current detection part 40 becomes a set value.SELECTED DRAWING: Figure 5

    【課題】小型な構成で、循環電流の発生を抑制することができる直流き電システムを提供すること。【解決手段】直流き電システムは、回生インバータ12に流れるインバータ電流を検出する第1の電流検出部16と、整流器10に流れる整流器電流を検出する第2の電流検出部6と、回生インバータ12を制御するための制御装置14とを備える。制御装置14は、電圧指令を予め設定された固定値とし、電圧検出部54により検出されるき電線電圧が電圧指令に一致するように回生インバータ12を制御するための電圧制御部50と、インバータ電流および整流器電流に基づいて、整流器10から回生インバータ12に流入する循環電流を検出する循環電流検出部40と、循環電流検出部40により検出される循環電流が設定値となるように、電圧指令を補正するための補正部42とを含む。【選択図】図5


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    Title :

    DIRECT CURRENT FEEDING SYSTEM


    Additional title:

    直流き電システム


    Contributors:

    Publication date :

    2016-05-23


    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



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