摘要
分布式故障录波功能可以在微机保护装置中方便地实现,然而现场应用中仍存在录波数据存储格式需要转换,数据传输协议不通用等问题。针对这些缺陷,在微机保护装置中引入了VxWorks文件系统,在存储芯片中直接将录波数据保存成Comtrade格式的二进制文件,避免了数据格式的后续转换。利用VxWorks实现了嵌入式的FTP服务器,采用通用的以太网文件传输协议传输录波文件,提高了传输速度。基于这些新技术,设计了适用于变压器成套保护装置的分布式故障录波实现方案,详细阐述了录波文件生成、存储、传输等关键步骤的具体实现方法。通过RTDS试验及现场运行验证了整个方案的可行性和优越性。
The distributed fault recording function can be easily realized in microprocessor-based relay .However, there are several defects currently .For example, fault data format must be converted according to Comtrade ,and transmission protocols are not universal,etc.To avoid additional disposal, the paper applies VxWorks file systems to microprocessor-based relay and converts fault data directly to binary Comtrade files. Furthermore,to increase the transfer speed,the paper realizes the embedded FTP server using VxWorks, and transmits the data files through Ethernet File Transfer Protocol. Based on the new technologies mentioned above ,the paper designs a realization scheme for distributed fault recording in transformer microprocessor-based relay, and discusses the key steps of data file generating, storage and transmission in detail. Dynamic experiment based on RTDS and field operation validate the feasibility and superiority of the scheme.
出处
《电力系统保护与控制》
EI
CSCD
北大核心
2011年第4期113-116,123,共5页
Power System Protection and Control
