配电网馈线负荷特性预测及预警实现技术

Implementation technology of distribution network feeder load characteristics prediction and early warning

为了掌握配电网馈线在负荷状态下的运行情况,采用聚类分析方法针对配电网馈线负荷特性进行预测,利用预警技术将配电网馈线中存在的故障区段进行报警处理,并采集序电流数据,该数据自身存在的故障标识有利于故障区段技术迅速定位,并及时切除故障馈线区段,考虑配电网馈线在运转过程中易出现可靠性降低问题,提出风险评估及预警方法,为电网系统的未来发展提供有效手段。

In order to grasp the operation of distribution network feeders under load conditions,the cluster analysis method is used to predict the load characteristics of the distribution network feeders,and the early warning technology is used to alarm the fault sections in the distribution network feeders.At the same time,the sequence current data are collected.The fault identification of the data itself is conducive to the rapid positioning of the faulty section and the faulty feeder section is timely removed.Considering that the distribution network feeder is prone to reliability degradation during operation,the m ethods of risk assessment and early warning are propos ed,which provides an effective means for the future development of power gr id system.