Abstract：To address the issue of over/under voltage in the distribution network due to the scale access of

distributed generators and flexible loads under the "double carbon" target，an active distribution networks

cooperative voltage control strategy based on the active support of electric vehicles（EVs）aggregation was

proposed，and the regulation effect of flexible load aggregation was fully utilized to support the safe and efficient

operation of distribution networks. First，an EVs aggregation prediction model based on the concept of "travel

chain" was proposed to improve the accuracy of EVs aggregation prediction. Then，aiming at the voltage problem

of multiple nodes，according to the voltage-power sensitivity，a coordinated voltage regulation strategy based on

"EVs aggregation，photovoltaic multifunctional inverter and reactive power management equipment " was proposed to promote the effective regulation of node voltage，reduce the configuration cost of reactive power control equipment，and ensure the safe power supply of the system. Finally，through the comparison of different methods and multi-scenario tests，the validity of the proposed EVs aggregation prediction method and the coordinated voltage regulation strategy was verified.

      Key words：active distribution networks；electric vehicles（EVs）aggregation；travel chain；voltage-power

sensitivity；cooperative voltage control