基于分布式测点的智能变电站核相系统

Phase Detection of Intelligent Substation Based on Distributed Measuring Point

为适应数字化的采样值传输方式,解决目前智能变电站现场调试时缺乏专业核相设备、核相工作不易实施的问题,文中提出了一种基于WIFI无线传输网络的智能变电站分布式核相系统。介绍了核相系统的系统架构及具体实现方案,研究了分布式数字化核相时采样值自适应传输、无线区域化同步及相位测量方法等关键技术。实验表明,基于无线通信实现的分布式核相系统相位采集精度较高,核相结果准确,操作方便,能够满足智能变电站现场全站核相的功能需求。

In order to adapt to the transnfission mode with digital sampling value, to solve the problems that the phase detection is not easy to be implemented by the lack of professional phase detection equipment for intelligent substation, this paper proposes a distributed phase detection system for intelligent substation which based on WlFI wireless transnfission network. Introduces the system architecture and implementation scheme of the phase detection system, researches the key technology of distributed digital phase detection, such as adaptive transnfission of sampling value, area synchronization with wireless and phase measurement. The experiments show that the phase acquisition precision of the system based on wireless eonmmnieation is high, the result of the phase detection is accurate and the operation is convenient, it can meet the functional requirements of the whole substation phase detection in the intelligent substation.