继电保护装置中基于uC/OS-II实时操作系统的嵌入式以太网

现在越来越多的用户对继电保护装置提出了带有以太网接口的要求,IEC61850体系提出的变电站综合自动化系统的无缝通讯也是基于以太网。保护装置对以太网通讯的实时性、可靠性的要求也随着计算机技术、网络技术的发展得到满足。该文介绍了在新研制的DSP继电保护装置中,基于uC/OS-II实时操作系统的以太网通讯模块。分别从硬件电路、硬件驱动程序、基于RTOS的/IP协议三个层次阐述了如何具体实现以太网通讯。该文所描述的以太网通讯模块已经在35 kV以下的低压保护装置中得到了实际应用。

Embedded Ethernet based on uC/OS-II RTOS in protection devices

More and more users demand the embedded Ethernet be provided in the protection devices.And the seamless communication of the power station automation system,which is issued by the IEC61850 system,is based on Ethernet technology.The real-time character and reliability of Ethernet communication are resolved with the development of the computer technology and network technology.The paper introduces embedded the Ethernet communication module,which bases on uC/OS-II real-time operating system.In the paper,the method to implement embedded Ethernet is expounded from hardware,hardware driver program and TCP/IP protocol.The proposed Ethernet communication module has been applied in the low-voltage protection devices.