对地区电网故障诊断系统中信息纠错的研究

Research of informations identification on the fault diagnosis system for regional power grid

针对SCADA系统中误发的保护信息,提出了一个建立信息纠错模型的构想。此模型利用故障信息、异常信息和状态量变化信息,进行三者之间的互相分析纠错过滤。为了建立此模型,提出了一种定时长收取SCADA信息与触发式记录SCADA相结合的信息记录方式,有效弥补了以往定时长记录SCADA信息的不足,使得获取状态量变化信息成为可能。信息纠错模型与地区电网故障诊断系统相配合,在一定程度上弥补了故障诊断系统无法识别误发、丢失信息的不足。

In order to identify the fault information sent out by SCADA system, a identify-fault-information model is created by the paper. Accident information, abnormal information and status-changing information are used in the model. The model analyses these three parts information and identify their validity. In order to create the model, a new method to receive SCADA information in a fixed time and trigger-record SCADA information is devised. The new method makes up the deficiency of the old one, to reord SCADA information in a fixed time It makes it possible to record the status-changing information . Using the identify-fault-information model in the fault diagnosis system for the regional power grid makes up the deficiency of identifying the fault information.