The present invention relates to a control device for a parallel operation of an AC output voltage in an auxiliary power supply device for a railway vehicle. According to one embodiment of the present invention, the control device comprises: first and second inverters provided in first and second auxiliary power supply devices for a railway vehicle, respectively, connected in parallel with each other, and configured to supply a three-phase AC output voltage to the load of the railway vehicle; first and second current detection units configured to detect currents outputted from the first and second inverters, respectively; first and second voltage detection units configured to detect voltages outputted from the first and second inverters, respectively; and first and second parallel operation control units configured to receive a current detection value and a voltage detection value from the first and second current detection units, respectively, calculate a control instruction value for an output frequency and a control instruction value for an output voltage using the received current detection value and voltage detection value, and control the first and second inverters, such that a three-phase voltage, a phase of which is delayed by a voltage variation of a DC-link of each of the first and second inverters, is outputted from rating of the output frequency. According to the present invention, it is possible to effectively reduce a circulating current in an initial transient state.

    본 발명은 철도차량용 보조전원장치 교류출력전압 병렬운전 제어장치에 관한 것이다. 본 발명의 일 실시예에 따르면, 철도차량의 제1 보조전원장치 및 제2 보조전원장치 각각에 구비되고, 병렬로 연결되어 철도차량의 부하에 3상 교류출력전압을 공급하는 제1 인버터 및 제2 인버터, 상기 제1 인버터 및 상기 제2 인버터 각각으로부터 출력되는 전류를 검출하는 제1 전류검출부 및 제2 전류검출부, 상기 제1 인버터 및 상기 제2 인버터 각각으로부터 출력되는 전압을 검출하는 제1 전압검출부 및 제2 전압검출부, 및 상기 제1 전류검출부 및 상기 제1 전압검출부 각각으로부터 전류검출값 및 전압검출값을 수신하고, 수신한 전류검출값 및 전압검출값을 이용하여 출력주파수의 제어 지령치 및 출력전압의 제어 지령치를 연산하며, 출력주파수의 정격으로부터 상기 제1 인버터 및 상기 제2 인버터 각각의 DC-link의 전압변화량만큼 위상이 지연된 3상 전압을 출력시키도록 상기 제1 인버터 및 상기 제2 인버터를 제어하는 제1 병렬운전 제어부 및 제2 병렬운전 제어부를 포함하는, 철도차량용 보조전원장치 교류출력전압 병렬운전 제어장치를 제공한다.


    Access

    Download


    Export, share and cite



    Title :

    AC OUTPUT VOLTAGE PARALLEL OPERATION CONTROL DEVICE OF APS IN RAILWAY


    Additional title:

    철도차량용 보조전원장치 교류출력전압 병렬운전 제어장치


    Contributors:
    KIM KI SOO (author) / CHOI BONG YEON (author) / LEE SANG SUK (author) / PARK YEONG HO (author)

    Publication date :

    2019-06-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen




    Railway vehicle operation control device

    TAKAHASHI YUSUKE / KOBAYASHI HIROYUKI / FUTAGAMI TAKUYA et al. | European Patent Office | 2023

    Free access

    Series-parallel output voltage detection circuit and voltage control method of output load

    ZHENG MIN / LIU YOUWEI / HAN ZHEN | European Patent Office | 2024

    Free access

    RAILWAY VEHICLE OPERATION CONTROL DEVICE

    TAKAHASHI YUSUKE / KOBAYASHI HIROYUKI / FUTAGAMI TAKUYA et al. | European Patent Office | 2022

    Free access

    Railway operation and control

    Pachl, Jörn | SLUB | 2002