基于虚拟仪器技术的高速网络型电力故障录波器研究

通过对目前电网中运行的故障录波器的性能参数比较，指出在采样频率、录波时标、数据格式、通信规约和综合分析诊断方面还存在问题。阐述了采用虚拟仪器技术开发电网故障录波器的优势。重点介绍了硬件构成方案和软件编程方法，并指出了系统实现的关键技术措施。利用开放性的虚拟仪器平台开发新型录波装置不仅开发周期短，功能扩展方便，性能可靠，而且可在采集速度、采集精度、记录容量、故障诊断和系统组网等方面满足现代电网故障研究的需要。

Study on high-speed network fault recorder of power system based on virtual instrument technology

The performance parameters of varies fault recorders in power system are compared and some problems are pointed out,including the defects of sampling frequency,timing signal,data format,transmission protocol and diagnostic fault processing . A network fault recorder based on virtual instrument technology is designed and its advantages are expounded. The hardware composition and software programming are emphasized,as well as the key technical means. It can shorten development cycle,make system function expansion easier,improve performance,and meet the needs of modern power system fault study in sampling rate and precision,recording capacity,fault diagnosis and system networking by utilizing the virtual instrument platform.