摘要
互不兼容的多功能综合数字继电器的普遍应用,新技术带来的设备更新期大幅缩短以及对继电保护控制精度和实时性越来越高的要求,使得采用嵌入式实时操作系统的电力系统数字继电器通用软件平台的问世成为必然。通过分析电力系统继电保护功能需求与分类,在μC OS Ⅱ实时操作系统的基础上,确定了软件平台的任务划分以及任务调度方式。μC OS Ⅱ是源码开放的抢占式实时内核,代码资源丰富,运行时间稳定,可以满足继电保护对可靠性、实时性的要求。并且通过该平台,开发了配电线路保护单元。该软件平台具有良好的通用性、移植性和扩展性,是实现软装配技术的基础。
The vast use of multifunction digital relays with incompatibility; their fast speed of refurbishment and the ever- higher requirements of power system protection lead to the implementation of the general- purpose digital relay software platform of power system protection based on RTOS. According to the function analysis of the power system protection, the task assignment and the task schedule strategy of the software platform are determined based on the chosen RTOS, μC/OS- Ⅱ, which is capable of achieving the desired reliability and fulfilling the critical time requirement because of its constant and deterministic execution time. A power line protection device is developed with the help of the software platform. Because it is general- purpose, easily portable and extendable, the digital relay software platform based on μC/OS- Ⅱ has paved the way for the realization of configurable digital relays.
出处
《电工电能新技术》
CSCD
2004年第1期72-76,共5页
Advanced Technology of Electrical Engineering and Energy
基金
2000年国家高技术产业发展项目计划(计高技[2000]1883号)
