基于IEC61850标准开发数字变电站可编程的IED

DSI-5000系列微机保护装置是为满足数字化变电的整体要求而策划设计的，采用通用的软硬件平台主要介绍了平台的软硬件特点，比较了采用单CPU和多CPU方案实现IEC61850通讯协议的优缺点，给出了可编程模块的建模实例和实现方法。阐述了在VxWorks操作系统下任务优先级、中断优先级的分配方法以及任务调度机制。介绍了IEC61850 通讯规约的实现过程。

Development of programmable IED for digital substation based on IEC61850 standard

DSI-5000 serial relays are designed for the need of digital substation, using general hardware and software platform. This paper mainly introduces the advantage of the general hardware and software platform, also compares the advantage and disadvantage of the method realizing IEC61850 standard with single-CPU and with multi-CPU. The paper presents the modeling and realization of programmable relay. The paper also introduces how to assign the priority of task and interrupt, and how to dispatch the task, also introduces the process of realizing IEC61850 standard.