系统拓扑结构的TDLRtree时空数据库索引表示法

A Method to Describe the Topology of Power System Based on the Index Structure for TDLRtree Spatio-Temporal Database

本文提出了一种新的基于TDLRtree时空数据库索引结构来表示系统拓扑结构的方法。整体上采用以时间为轴的方式对系统拓扑结构情况进行记录,通过一部分对象采用单链表,另一部分对象采用双链表的方式来简化对系统拓扑结构的重构。该方法避免了传统重构中重构树的复杂过程,通过对原有树变化后的遍历来代替了重构树,简化了重构的算法,提高了系统效率。教学实践结果表明,该方法在通过变电站仿真系统教学应用中不仅提高了学生的学习兴趣,同时加深了学生对课程的理解,收到良好的教学效果。

This paper presents a new TDLRtree index structure for spatio-temporal database to describe the topology of power system. The system topology structure is recorded adopting time-axis way at the top. A part of objects is used single-link table and the others are used double-link table to simplify the restructure of system topology. The algorithm avoids complex calculation in traditional restructure method. Since the algorithm traverses original tree changed instead of tree restructure, restructure method is simplified and calculation efficiency is improved. The application in substation simulation system proves the availability. The practice shows that this method not only inspires students＇ interests of learning but also improves the understanding to the digital substation.