The invention relates to an energy management method for an optical storage charging and discharging battery replacement system. The system comprises a photovoltaic power generation system, a lithium battery energy storage system, a direct current bidirectional charging and discharging system, an alternating current charging system and a battery replacement system. Energy management planning is carried out on daytime and night equipment load electricity consumption and under the idle condition, meanwhile, energy flow control is carried out by considering the electricity price difference of peak-valley-flat electricity consumption time periods and power grid load and peak regulation demand factors of different time periods, and strategy optimization is achieved; a first energy source, a second energy source and a third energy source are set, under the condition that the electricity load is lower than the output power of the first energy source, the first energy source is started in a limited mode, the second energy source and the third energy source do not conduct energy output, when the load power is larger than that of the first energy source, the second energy source is started, and the third energy source is started along with the increase of the load; according to the invention, reasonable energy distribution is realized; according to the method, the optimal energy consumption strategy under different working conditions is realized, and the most economical and most efficient energy flow scheme is formulated.

    本发明涉及一种光储充放换电系统能源管理方法,系统包括光伏发电系统、锂电池储能系统、直流双向充放电系统、交流充电系统、换电系统;对日间、夜间设备负载用电及空闲情况下进行能源管理规划,同时考虑峰谷平用电时段的电价差异以及不同时段电网负荷和调峰需求因素,进行能量流控制,实现策略最优;设置第一能量源、第二能量源、第三能量源,其中在用电负载低于第一能量源输出功率条件下,有限启用第一能量源,第二、第三能量源不做能量输出,当负载功率大于第一能量源时,第二能量源启用,随着负载增大,启动第三能量源;本发明实现了能源合理分配;本发明实现了不同工况下的最优用能策略,制定最经济、最高效的能量流方案。


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    Title :

    Energy management method for optical storage charging and discharging battery swap system


    Additional title:

    一种光储充放换电系统能源管理方法


    Contributors:
    LIU WEISHENG (author) / WEI WANGRUI (author) / XU MING (author) / MA CHENGXIANG (author) / GE LINSHAN (author) / BAI KUNPENG (author) / PAN YUPENG (author) / ZHOU GUANGLI (author)

    Publication date :

    2022-11-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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



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