The invention provides a method and device for improving the utilization rate of regenerative braking energy, and belongs to the technical field of electrified railway traction power supply.The method comprises the steps that the magnitude of voltage and current on the alternating-current side and the direct-current side and the energy storage charge state are monitored and collected in real time, and a first threshold condition, a second threshold condition and a third threshold condition are set; according to the collection result, the voltage of the traction network, the voltage of the medium-voltage looped network and the charge state of the energy storage system are sequentially judged in a one-to-one correspondence mode through the first threshold value condition, the second threshold value condition and the third threshold value condition, and the regenerative braking energy utilization rate is improved according to the judgment result. The problems that the power supply quality is affected by network voltage fluctuation when the braking energy of the train in the rail transit system is applied, and the electric energy recovery efficiency is low due to reverse transmission are solved.

    本发明提供了一种提高再生制动能量利用率的方法及装置,属于电气化铁路牵引供电技术领域,该方法包括实时监测并采集交直流侧电压电流大小及储能荷电状态,并分别设置第一阈值条件、第二阈值条件以及第三阈值条件;根据采集结果,并利用第一阈值条件、第二阈值条件以及第三阈值条件,依次一一对应对牵引网电压、中压环网网压以及储能系统的荷电状态进行判断,并根据判断结果完成对再生制动能量利用率的提高。本发明解决了轨道交通系统中列车的制动能量应用时存在网压波动影响供电质量,以及倒送引起的电能回收效率低等问题。


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    Titel :

    Method and device for improving regenerative braking energy utilization rate


    Weitere Titelangaben:

    一种提高再生制动能量利用率的方法及装置


    Beteiligte:
    HE XIAOQIONG (Autor:in) / MENG JIE (Autor:in) / ZHAO PENGCHENG (Autor:in) / QIU CHENGHAO (Autor:in) / ZHI QIYING (Autor:in) / PANG YAHUI (Autor:in) / SHAN FEIXIANG (Autor:in)

    Erscheinungsdatum :

    2024-03-01


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

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