微机继电保护装置中故障录波功能设计

Design of the function of fault recording in microcomputer relay protection device

故障录波时,需要记录大量的波形数据,并且要将这些数据永久存储在FLASH中。如果要在微机继电保护装置中附加故障录波功能,就要考虑大量数据存储时的延时,会对采样和保护的实时性产生影响,而且也会消耗大量的存储资源。针对上面的问题,以基于ARM7TDMI核的SEP3203嵌入式微处理器,以及Nucleus实时操作系统为例,阐述如何在微机继电保护装置中进行故障录波功能设计。

When starting fault recording, it needs recording much data of fault waves. And the data of fault waves will be stored into FLASH ROM. If we want to add the function of fault recording to microcomputer relay protection device, it should consider the time delay brought by storing, because it will affect the real-time tasks of sampling and protection, also it will consume large numbers of resource of memory. As to the problem talked above, this paper discusses how to design the function of fault recording in microcomputer relay protection device based on SEP3203 that using the ARM7TDMI core and Nucleus real-time operation system.