To provide a power conversion system which can safely start a plurality of apparatuses by power supplied from a battery device.SOLUTION: A power conversion system includes: a power conversion device for travelling for converting power supplied via a transformer and converting it into drive power for a motor for travelling; a power conversion device for auxiliary power supply for converting AC power supplied via the transformer and outputting it to the drive power of an AC load and a DC load; a battery device connected to a power line for connecting an AC-DC power conversion part for load and a DC-AC power conversion part for load DC power, and a power line for connecting an AC-DC power conversion part for travelling and a DC-AC power conversion part for travelling; and an auxiliary machine connected to a power line for connecting the power conversion device for auxiliary power supply and the battery device. The battery device includes: a current detector for detecting a current flowing in a positive side main circuit and a negative side main circuit of a battery pack; and a battery control circuit for performing electrical leak detection of the battery pack in a cycle shorter than a predetermined cycle based on a detection value in the current detector.SELECTED DRAWING: Figure 1

    【課題】 バッテリ装置から供給される電力により複数の機器を安全に起動可能な電力変換システムを提供する。【解決手段】 実施形態による電力変換システムは、変圧器を介して供給された電力を変換して走行用モータの駆動電力に変換する走行用電力変換装置と、変圧器を介して供給された交流電力を変換して交流負荷および直流負荷の駆動電力に出力する補助電源用電力変換装置と、負荷用交流−直流電力変換部と負荷用直流−交流電力変換部直流電力とを接続する電力線、および、走行用交流−直流電力変換部と走行用直流−交流電力変換部とを接続する電力線に接続されたバッテリ装置と、補助電源用電力変換装置とバッテリ装置とを接続する電力線に接続された補機と、を備え、バッテリ装置は、組電池の正側主回路および負側主回路に流れる電流を検出する電流検出器と、電流検出器における検出値に基づいて所定の周期よりも短い周期で組電池の漏電検知を行うバッテリ制御回路と、を備える。【選択図】図1


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    Title :

    POWER CONVERSION SYSTEM


    Additional title:

    電力変換システム


    Contributors:

    Publication date :

    2021-03-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen / 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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