矿用隔爆型干式变压器故障预警系统设计

摘要

为保证矿用隔爆型干式变压器安全连续地运行，以矿用隔爆型干式变压器故障诊断预警系统硬件装置为基础，在LabVIEW平台下开发基于多源信息融合的矿用隔爆型干式变压器故障预警系统软件。实时采集电流、电压、温度及局部放电等矿用隔爆型干式变压器参量作为故障征兆信息，并提取各监测参量的特征量作为故障诊断系统的输入信息；设计基于RBF神经网络的故障诊断模块，综合诊断确定变压器的故障情况；设计故障预警界面，实时显示变压器的故障情况，并对潜在故障进行预警。矿用隔爆型干式变压器故障预警系统在山西晋城无烟煤矿业集团寺河二号井井下安装试运行结果表明，该系统可以实现对矿用隔爆型干式变压器多种潜在故障的在线预警。%In order to ensure the safety and continuous operation of the mine flameproof type dry transformer,based on the hardware device of the fault diagnosis and early warning system applied to the mine flameproof type dry transformer as a base,a fault early warning software system of the mine flameproof type dry transformer was developed,based on multi source information integration under the LabVIEW platform.The current,voltage,temperature,local electro-discharge and other parameters of the mine flameproof type dry transformer were real timely collected as the fault symptom information,and the feature value of each monitoring and measured parameter was collected as the input information of the fault diagnosis system.The fault diagnosis module was designed based on the RBF neural network and the fault condition of the transformer would be determined with comprehensive diagnosis.The fault early warning interface was designed to real timely display the fault condition of the transformer and to make a potential fault early warning.The system was installed and had a trial operation Sihe No. 2 Mine of Shanxi Jincheng Anthracite Coal Mining Group and the ioeration results showed that the system could realize the on-line early warning function of several potential faults of the mine flameproof type dry transformer.