变频装置高速以太网EPA通用接口模块的开发  

Development of EPA high-speed communication module for frequency inverter

作　　者：梁涛[1] 张浩[1] 孙鹤旭[1] 林涛[1] 

机构地区：[1]河北工业大学电气与自动化学院自动化研究所,天津300130

出　　处：《电测与仪表》2007年第4期24-28,共5页Electrical Measurement & Instrumentation

基　　金：国家863计划重点资助项目(2006AA040306);天津市自然科学基金(07JCYBJC05600);河北省自然科学基金资助项目(F2007000108)

摘　　要：为了将变频器接入EPA网络,实现由以太网的实时运动控制,采用模块化的设计思想,为所开发的永磁同步电动机数字交流伺服控制器设计了高速智能EPA通信接口。该模块核心为AT91R40008 ARM7处理器,由AX88796网卡芯片实现TCP/IP协议的解析,采用DPRAM实现与变频控制器高速并行数据通信,并在μC/OS-Ⅱ实时嵌入式操作系统下实现了EPA工协议栈,通过时钟同步实现实时运动控制。测试结果表明,采用该EPA模块的变频调速装置具有较高的精度、实时性和通用性。In order to connect frequency inverter to EPA network and achieve real time motion control via industry Ethernet, using modular design concept, a high-speed and intelligent EPA communication interface board was designed and developed for the controller of a PMSM. In this board, an ARM7 micro-controller AT91R40008 and a network adapter chip AX88796 are adopted. A DPRAM is used for parallel high-speed data exchange between the modular and the intelligent controller. The Real Time Embedded OS ⅡμC/OS- Ⅱand the EPA real-time industry Ethernet protocol software stack are also adopted. It is proved that Electric Actuator with this EPA communication module has higher precision ,real-time and applicability.

关 键 词：EPA 实时工业以太网 嵌入式实时操作系统 时钟同步 变频器 

分 类 号：TM934[电气工程—电力电子与电力传动] TP393.11[自动化与计算机技术—计算机应用技术]