主变压器低压侧母线失电事故预案快速生成  

Rapid Generation of Contingency Plans for Power Failure Accidents on the Low-voltage Side of the Main Transformer Busbar

作　　者：栗子豪 朱齐 王沁 张麟 沈健 陈志樑 Li Zihao;Zhu Qi;Wang Qin;Zhang Lin;Shen Jian;Chen Zhiliang(Pudong Power Supply Branch,State Grid Shanghai Electric Power Co.,Ltd.,Shanghai 200120,China)

机构地区：[1]国网上海市电力公司浦东供电公司,上海200120

出　　处：《电气自动化》2024年第1期60-62,共3页Electrical Automation

基　　金：上海市电力公司科技项目(520921220006)。

摘　　要：为降低失电事故损失,研究了主变压器低压侧母线失电事故预案快速生成方法。在获取配电网拓扑结构、设备技术参数与运行数据的基础上,采用基于变量代换的配电网潮流算法获得配电网所有节点的有功功率,将馈线作为一个整体,构建以最低停电损失为优化目标的负荷转供优化模型;采用改进的非支配遗传算法求解模型最优解,确定负荷转供最优路径;依据负荷重要度确定联络开关操作顺序,最终得到主变压器低压侧母线失电事故预案。试验结果表明:生成的主变压器低压侧母线失电事故预案仅切除了部分第三类负荷,预案生成时间短,失电损失低。To reduce the loss of power failure accidents,a rapid generation method for power failure accident plans of the low-voltage side busbar of the main transformer was studied.On the basis of obtaining the topology structure,equipment technical parameters,and operational data of the distribution network,a variable substitution-based distribution network flow algorithm was used to obtain the active power of all nodes in the distribution network.The feeder line was taken as a whole,and a load transfer optimization model with the minimum outage loss as the optimization objective was constructed;use an improved non dominated genetic algorithm to solve the optimal solution of the model and determine the optimal path for load transfer;determine the operating sequence of the interconnection switch based on the importance of the load,and finally obtain the contingency plan for the low-voltage side busbar power failure accident of the main transformer.The test results show that the generated plan for the low-voltage side busbar power failure accident of the main transformer only removes some of the third type loads,with a short generation time and low power loss.

关 键 词：主变压器 低压侧母线 失电事故预案 变量代换 负荷转供 联络开关 

分 类 号：TM732[电气工程—电力系统及自动化]