In the AC/DC hybrid transmission system of sending-terminal power grid containing a high proportion of new energy, the commutation failure （CF） will cause power flow transfer of AC/DC hybrid system, and lead to overload phenomenon of AC transmission system. This paper proposes an AC/DC active power coordination control strategy considering wind turbine （WT） regulation potential. Firstly, based on K-means clustering algorithm, the discrimination model of WT operation states classifies its operation states, and characteristic data are collected to train self-organizing map （SOM） network, minimum quantization error （MQE） is used to evaluate WT regulation potential. Secondly, the DC subsequent CF is suppressed by adjusting DC transmission power, and the active power output of WTs with regulation potential is reduced based on the active power control principle of WTs, which can reduce the overload harm of AC transmission system. Finally, the SOM-MQE based evaluation model of WT regulation potential based on actual WT operaiton data is built, and the effectiveness of the proposed strategy is verified on the simulation platform.