基于多任务异步处理的电力系统序网络拓扑分析

Power system sequence network topology analysis based on multi-task asynchronous processing

近年来,多核处理及多线程处理技术发展迅速,充分利用CPU资源,采用异步处理技术是大幅度提高电力系统网络拓扑分析计算效率的有效途径。本文提出了基于多任务异步处理的序网络拓扑分析方法,将电气元件抽象为节点和支路类型,建立连接关系类保存连接信息,异步化处理正序、零序网拓扑分析,采用任务嵌套的模式将耗时较长的节点阻抗矩阵的计算异步化为四个子任务独立执行,最终生成拓扑网络图及分析结果数据。针对四川某电网的实例拓扑分析表明了该方法的可行性与高效性。

In recent years,multi-core and multithread processing technology have developed rapidly,thus making full use of CPU resources and taking asynchronous processing technology are effective ways to improve the computational efficiency of network topology analysis in the power system. This paper presents a method for analyzing the sequence network topology based on multi-task asynchronous processing. In this paper,electrical components are abstracted as the type of node and branch,and we establish the connection class to save connection information,the way that we deal with the topology analysis of positive and zero sequence networks is using asynchronous processing technology.Based on the nested-task model we can deal with the form of the node impedance matrices which are long-time work in sequence network topology analysis by dividing them into four independent subtasks. Finally,the program will generate topology network diagrams and the data of analysis results. Topology analysis of a certain Sichuan power grid showed the feasibility and efficiency of this method.