图形可编程继电保护实验平台的设计

摘要

In view of the current status of microcomputer relay protection experiment in electrical engineering,a programmable relay protection experimental platform based on graphics is designed.The platform adopts the industrial protection controller M7D.By using more than 30 kinds of protection elements and graphic programmable functions inside PLPShell software,students can write their own logic programs according to the principle of relay protection,and download them to the protector to run and verify the correctness of the protection logic.The platform can overcome the shortcomings of the traditional microcomputer relay protection that students cannot write logic program,students can more intuitively understand the protection principle,and improve their practical ability.It meets with the engineering education personnel training objectives and requirements.%基于工业级保护控制器M7D,设计了一套基于图形可编程继电保护实验平台,利用PLPShell软件内部的30余种保护元件和图形可编程功能,学生根据所学继电保护原理可自行编写逻辑程序,下载至保护控制器中运行,并验证保护逻辑的正确性.该平台可以克服传统微机继电保护学生不能编写逻辑程序的缺点,可以更加直观地理解保护原理,并提高学生的实践动手能力,符合工程教育人才培养的目标要求.