计及馈线自动化故障处理全过程的配电终端优化布置方法

为了进一步提高配电网供电可靠性，提出了一种计及馈线自动化(feeder automation, FA)故障处理过程的配电终端优化布置方法。首先以自适应综合型FA模式为例，分析FA的故障定位、隔离与恢复供电的故障处理全过程，并基于电力系统仿真软件DIgSILENT建立了配电终端的动作信号逻辑模型。其次，在考虑了FA故障处理过程的条件下，计算包括故障区域与非故障区域的总负荷停电损失成本，与总投资成本共同构成模型目标函数。考虑系统平均供电可用率指标约束等因素，建立配电终端优化布置模型。然后，基于整数编码的人工蜂群算法确定配电终端最优安装总数，制定配电终端最优配置方案，计算出配电终端最优选址方案。最后，以冀北某地区10 k V配电网作为仿真算例，基于DIgSILENT模拟FA故障处理全过程，验证所提方法的有效性和适用性。

Optimal layout method of distribution terminals considering the whole process of feeder automatic fault handling

To improve the reliability of power supply of a distribution network, an optimal distribution terminal layout method considering the automatic fault handling process of feeders is proposed. First, taking the self-adaptive integrated feeder automation (FA) mode as an example, the whole process of fault location, isolation and power restoration of FA is analyzed, and the action signal logic model of the distribution terminal is established based on the power system simulation software DIgSILENT. Second, considering the automatic fault handling process of the feeder, the total load power outage loss cost including the fault area and non-fault area is calculated, and the total investment cost of the distribution terminal constitutes the objective function of the model. Taking the constraints of the average power supply availability index of the system into account, the optimal arrangement model of distribution terminals is established. Then, the optimal total number of installations of distribution terminals is determined based on the artificial bee colony algorithm based on integer coding. The optimal configuration scheme of distribution terminals is formulated, and the distribution terminal optimal site selection is calculated. Finally, taking a 10 kV distribution network in Jibei as a simulation example, the whole process of automatic fault handling of a feeder is simulated in DIgSILENT to verify the effectiveness and applicability of the proposed method.