一种微机继电保护教学实验平台的硬件设计研究  

Hardware Design of Experimental Platform for Microcomputer Relay Protection

作　　者：管晓虎[1] 李雪莲[1] 时谦[1] 周伟[1] 

机构地区：[1]新疆农业大学机械交通学院,新疆乌鲁木齐830052

出　　处：《测控技术》2013年第12期147-150,共4页Measurement & Control Technology

基　　金：新疆农业大学前期资助课题(XJAU201012)

摘　　要：针对高校微机继电保护课程,提出了一种基于TMS320F28335+EPM570F256C4+PC机的微机继电保护教学实验平台,以充分发挥DSP在数字信号处理及控制方面的优势,CPLD组合逻辑、译码及I/O扩展功能。详细介绍了平台的组成和保护装置接口电路的设计,其中包括DSP与CPLD接口电路、模拟量输入转换电路、开关量输入输出电路、测频电路以及人机接口电路。该平台配置相应模块化保护软件即可满足微机继电保护教学中,学生对装置硬件构成、数字算法、继电保护原理的感性理解和认识。An experimental platform for microcomputer relay protection is presented based on TMS320F28335 ＋ EPM570F256C4 ＋ PC to meet experimental teaching.It makes full use of the advantages of DSP in digital signal processing and control,CPLD in combinational logic,decoding and I/O expansion functions.The platform composition and part interface circuits design are described in detail,such as the interface circuit between DSP and CPLD,analog input conversion circuit,I/O expansion circuit,frequency measuring circuit and humancomputer interface circuit.The platform with modular software can meet the requirements of microcomputer relay protection teaching,emotional understanding and awareness of students on the hardware structure,digital algorithm,relay protection principle.

关 键 词：DSP CPLD 微机继电保护 实验平台 

分 类 号：TM774[电气工程—电力系统及自动化]