基于可编程逻辑的微机保护实验装置设计

Design of Microcomputer Protection Based on Programmable Logic for Experiment

针对目前微机保护实验实现复杂的问题,提出了一种基于可编程逻辑原理多功能微机保护实验培训装置的设计方案。该方案在对系统软硬件资源属性进行定义的基础上,采用指令表语言对继电保护功能进行封装,使各个功能成为独立的图形化模型,实现元件化的过程。由这些模块所搭建的梯形图编译下载到实验装置后,即可由实验装置完成保护实验功能。此方案简单、灵活、扩展性能好,可以很好地满足电力系统相关人员培训和高等院校微机保护实验的需要。

This paper proposes a design method based on propgramming logic for carrying out microcomputerbased relay protection＇s experiments. Followed the attributes of software and hardware had been defined, instruction list is adopted for packing the relay protection functions and making them independent graph modules. The apparatus carries out protection ruction after ladder diagrams have been compiled and downloaded to the microprocessor. This scheme is simple, flexible,extensible,and could satisfy the need of training for relevant personnel in power system and experiments in colleges.