针对源荷波动性造成交直流混合配电网节点电压失稳、风光损失率高和系统运维成本高等问题，提出一种计及网络重构与需求响应的交直流混合配电网低碳优化运行方法。首先，建立面向交直流混合配电网的阶梯式碳交易模型。其次，以系统经济性和低碳性为优化目标，考虑网络重构、需求响应、电容器投切、分布式电源接入和储能充放电等多种约束，建立交直流混合配电网低碳优化运行模型。接着，通过引入中间变量和二阶锥松弛方法将非凸的配电网优化模型转化为混合整数凸规划模型并进行求解。最后，通过改进的IEEE33节点交直流混合配电网系统对所提方法进行仿真分析，结果表明所提方法能够显著减少系统运行产生的碳排放量和风光损失率，提升系统电压稳定性和调度经济性。

Aiming at the problems of AC/DC hybrid distribution network node voltage instability, high rate of abandoned wind and photovoltaic power and high system operation and maintenance cost caused by source-load volatility, a low-carbon optimization operation method of AC/DC hybrid distribution network taking into account network reconfiguration and demand response is proposed. Firstly, a stepped carbon trading model for AC/DC hybrid distribution networks is established. Secondly, a low-carbon optimization operation model for AC/DC hybrid distribution networks is developed with the optimization objectives of system economy and low-carbon, taking into account the constraints of network reconfiguration, demand response, capacitor switching, access to distributed power sources, and charging/discharging of energy storage. Then, the nonconvex distribution network optimization model is transformed into a mixed-integer convex planning model and solved by introducing intermediate variables and a second-order cone relaxation method. Finally, the proposed method is simulated and analyzed by the improved IEEE 33-node AC/DC hybrid distribution system, and the results show that the proposed method can significantly reduce the carbon emissions and the rate of wind and photovoltaic power abandonment generated by the system operation, and improve the system voltage stability and dispatch economy.