地下变电站辅机DTS系统设计探讨

Design of DTS of underground substation auxiliary system

以上海500kV地下变电站辅机系统为原型,对辅机DTS系统设计遇到的技术要点进行了分析。针对辅机系统结构复杂,测点信息较多的特点,提出从外特性进行仿真,通过设备模型和关联模型建立搭建系统模型的建模方法。在此基础上,将故障模型分为状态故障和模拟量异常两个类型。考虑辅机后台监控系统的复杂性,采用了前背景分离的设计方法,大大减少了监控系统仿真的工作量。该成果对国内其他地下变电站辅机DTS系统设计具有重要的参考价值。

This paper takes auxiliary system of Shanghai 500 kV underground substation as prototype and analyzes the technical points encountered in the design of its DTS. Considering the complicated structure of auxiliary system and more measurement points, a method which simulates the characteristics of the system from outside is proposed. It builds the model through equipment model and relationship model. On this basis, the fault model is classified into two types： status fault and analog exception. Since the auxiliary backstage monitor system is complicated, a screen drawing method which separates the front view from background view is applied, which greatly reduces the workload of monitor system simulation. The results in this paper have important reference value for the design of DTS of other domestic underground substation auxiliary systems.