The invention provides an energy consumption optimization method for an on-line direct-current drive transportation system, which comprises the following steps: analyzing a power grid-battery hybrid structure of a powered vehicle, summarizing five electric-electric hybrid working modes, and establishing an electric-electric hybrid power distribution model; analyzing a power transmission line of the on-line direct-current driving transportation system, and establishing a power supply closed loop model of a single-vehicle single-vehicle interval; according to the electric-electric hybrid power distribution model and the power supply closed loop model, the SOC of a vehicle-mounted power battery is used as a state variable, the charging and discharging power of the power battery is used as a control variable, the optimal power transmission line electric energy loss and the power battery electric quantity balance are used as performance indexes, the limiting conditions of the power battery are considered, and the driving process of a powered vehicle is dispersed; an electricity-electricity hybrid strategy is established by using a dynamic programming algorithm, the optimal control sequence of the charging and discharging power of the power battery is determined, the electric energy loss of a power transmission line can be reduced by using the electricity-electricity hybrid strategy to drive the powered vehicle, and the energy consumption optimization of the online direct current driving transportation system is realized.

    本发明提出一种在线直流驱动运输系统的能耗优化方法,分析受电车辆的“电网‑电池”混动结构,总结出五种电电混动工作模式,并建立电电混动功率分配模型;分析在线直流驱动运输系统的电力传递路线,建立单车单区间的供电闭合回路模型;根据电电混动功率分配模型和供电闭合回路模型,以车载动力电池的SOC为状态变量,以动力电池的充放电功率为控制变量,以最优输电线电能损耗和动力电池电量平衡为性能指标,考虑动力电池限制条件,对受电车辆的行驶过程进行离散,使用动态规划算法建立电电混动策略,确定动力电池充放电功率的最优控制序列,受电车辆使用电电混动策略行驶可以减少输电线的电能损耗,实现在线直流驱动运输系统的能耗优化。


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    Title :

    Energy consumption optimization method of on-line direct current drive transportation system


    Additional title:

    一种在线直流驱动运输系统的能耗优化方法


    Contributors:
    BI GAOXIN (author) / WANG YUHAI (author)

    Publication date :

    2023-03-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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