摘要
变压器的安全稳定运行直接关系到电力系统的可靠性,为保障变压器的安全稳定运行,提出了一种基于无线远程通信技术(GPRS)的变压器状态在线监测系统。该系统采用油气分析法,通过半导体传感器采集变压器油中溶解的5种特征气体含量,经在线监测终端数据处理后通过GPRS通信系统将采集信息传输到远程监控中心,经径向基神经网络模型对变压器状态进行诊断,若存在故障再经D-S证据理论进行信息融合,并给出了合理化建议。经测试,该系统功能完整,性能完好,能够准确地监测变压器状态。
The safe and stable operation of the transformer is directly related to the reliability of the power system. Therefore, this paper presents a transformer state online monitoring system based on GPRS technology. The system uses the GDA method, collects 5 kinds of characteristic gas content dissolved in the transformer oil through the semiconductor sensor. After online monitoring terminal data processing, through the GPRS com- munication system, the collected information is transmitted to the remote monitoring center for diagnosing transformer state by using RBF neural network. If there is fault, the information fusion is carried out by D-S evidence theory, and the rational suggestion is presented. The testing proves that the system has complete function, good performance, and can monitor the transformer status accurately.
出处
《电力与能源》
2017年第6期688-691,共4页
Power & Energy
