基于开关路径函数集的新型厂站内网络拓扑方法

A Novel Substation Configuration Identification Algorithm Based on the Set of Breaker-path Functions

应用于厂站内拓扑分析的传统邻接矩阵方法在线处理过程多,耗时长,实时性低,主要表现为:初始拓扑扑分析时,需要在线形成初始邻接矩阵,并进行大量逻辑运算获得全连通矩阵;跟踪开关变位时,需要在线修改初始邻接矩阵,并重复利用各种处理方法判断连通性。在获得开关变量形式的邻接矩阵基础上,利用符号运算,结合伴随阵求逆,形成全连通矩阵中各元素对应的开关变量函数,并应用基于广义加、乘运算建立的简化原则加以处理得到最简形式,进而提出基于最简开关路径函数集合的厂站内拓扑分析新算法。通过仿真计算证明,新算法所采用的离线形成开关路径函数集合,在线带入实时开关状态求解的处理过程,大幅缩减了在线处理耗时,有效地提高了拓扑分析的快速性和实时性。

The traditional adjacent matrix method applied in the substation configuration identification has many online procedure steps, which is time consuming and bad performance for real-time applications. In the stage of original topology analysis, the complete connection matrix is gained by use of a lot of logical operations based on the original adjacent matrix formed in online; in the tracking procedure, the original matrix needs to be modified in online, and the connectivity has to be determined by the repeatedly use of the original analysis methods. After the formation of the original adjacent matrix as a function of the breaker status, the breaker-path functions of the elements in the complete connection matrix were formed based on the adjacent matrix inversion and symbol operations. Having introduced the simple principles based on the generation addition and multiplication into the simplification of the breaker-path functions, the novel substation configuration identification method based on the set of breaker-path functions was established. Finally, the simulation examples validated that the novel method was able to reduce the online time consumed remarkably and enhance the real-time and speediness, whose main Procedures contained the offiine formation of the breaker fianction set and the online solution to the above functions by substituting of real-time breaker status.