The invention discloses a power distribution network reactive power optimization control method based on electric vehicle V2G bidirectional charging. The method comprises the following steps: collecting power grid information and charging information; analyzing behaviors of the electric vehicle user; when the number of the electric vehicles capable of participating in reactive compensation reaches a set value, reactive power optimization is carried out on the power distribution network, the operating power factor of the charging pile is taken as an optimization variable, and the network loss of the three-phase unbalanced power distribution network is ensured to be as small as possible while the available reactive power capacity of the charging pile is as small as possible. According to the invention, the technical means of adjusting the operation power factor of the charging pile and optimizing the operation of the power distribution network considering the loss of the three-phase unbalanced line is adopted, so that the normal charging of the electric vehicle is not influenced, and the battery is not damaged due to large-amount charging and discharging; and the reactive power gap of the power distribution network and the residual capacity of the electric vehicle are greatly improved.

    基于电动汽车V2G双向充电的配电网无功优化控制方法,包括:采集电网信息和充电信息;对电动汽车用户的行为进行分析;当可参与无功补偿电动汽车数量达到设定值,对配电网进行无功优化,以充电桩运行功率因数为优化变量,在使充电桩的可用无功容量尽可能小的同时保证三相不平衡配电网的网损尽可能小。本发明采用调节充电桩运行功率因数以及考虑三相不平衡线路损耗的配电网运行优化的技术手段,达到了在不影响电动汽车正常充电且不会进行大量的充放电而损坏电池的前提下,配电网无功缺口及电动汽车容量剩余问题大幅改善的技术效果。


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    Title :

    Power distribution network reactive power optimization control method based on electric vehicle V2G bidirectional charging


    Additional title:

    基于电动汽车V2G双向充电的配电网无功优化控制方法


    Contributors:
    ZHANG HUA (author) / ZHANG KAIYU (author) / SHI SHANSHAN (author) / KORETADA (author) / FENG DONGHAN (author) / SHEN BING (author) / ZHOU YUN (author) / FANG CHEN (author) / WU DAN (author) / JI KUNHUA (author)

    Publication date :

    2023-11-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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