The invention discloses a multistage voltage control method of a hybrid power locomotive and a corresponding hybrid power locomotive, the method comprises the following steps: setting a bus voltage target value of the locomotive, the bus voltage target value comprises a first voltage target value V1, a second voltage target value V2 and third voltage target values V3 and V1gt; v2gt; v3, the diesel engine of the diesel engine system always works at the rated economic rotating speed, main engine excitation in the diesel engine system is preferentially adjusted, and the actual voltage V of the bus is maintained at the first voltage target value V1; secondly, the actual voltage V < actual > of the bus is maintained at a second voltage target value V2 by adjusting the actual charging and discharging power P < actual > of a power battery system of the locomotive; and finally, maintaining the actual voltage V < actual > of the bus at a third voltage target value V3 by adjusting the actual power P < actual > of the traction system of the locomotive. Through closed-loop control of multi-stage voltage, the performance of each system of the locomotive is fully exerted, the precision and response speed of a locomotive control system are improved, and the energy consumption of a diesel engine system is reduced.

    本公开为一种混合动力机车的多级电压控制方法及相应的混合动力机车,方法为:设定机车的母线电压目标值,母线电压目标值包括第一电压目标值V1、第二电压目标值V2和第三电压目标值V3,V1>V2>V3,柴发系统的柴油机一直工作在额定经济转速下,优先通过调整柴发系统中的主发励磁,将母线实际电压V实维持在第一电压目标值V1;其次通过调整机车的动力电池系统实际充放电功率P电实,将母线实际电压V实维持在第二电压目标值V2;最后通过调整机车的牵引系统实际功率P牵实将母线实际电压V实维持在第三电压目标值V3。通过多级电压的闭环控制,充分发挥机车各系统性能,提升机车控制系统精度与响应速度,降低了柴发系统的能耗。


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    Title :

    Multi-stage voltage control method of hybrid power locomotive and corresponding hybrid power locomotive


    Additional title:

    混合动力机车的多级电压控制方法及相应的混合动力机车


    Contributors:
    LIU ZHANYU (author) / LI ZHAOYU (author) / LIU ZHONGWEI (author) / DONG JUNQI (author) / SUN YIFAN (author) / LU LU (author) / XU CHAOLIN (author) / WANG ZHIQIANG (author) / GAO LEI (author) / LYU SHIWEI (author)

    Publication date :

    2023-01-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion



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