PG数字式保护测控装置的设计

Design of PG digital protection and monitor device

为了保障低压电网及厂用电系统的安全稳定运行,提出了基于网络版图形化保护测控装置的设计方案。结合PG系列保护测控装置的设计需求,详细分析了其关键技术和主要功能模块,设计并完成了该装置的图形化上位机软件和基于MPC8247 CPU及Vxworks相结合的下位机程序,它定时地采集测控现场的保护数据,直观地展现了装置的各种软硬件配置信息及各器件的实时运行状态。实际应用结果表明,该系统运行稳定,有效地发挥了其安全防护作用。

To secure the security and stability of low voltage electricity networks and electrical system, a design method of protectionand monitor device based on the graphics and network is presented. Firstly, the key technology and the main function modules are anal- yzed, which is combined the requirement of design about PG digital protection and monitor device. Then, the graphical software of upper machine and the software of lower machine are designed in networks, which is combined the MPC8247 CPU on Vxworks operating system, it can collect the protected data timely in the workstation, directly display the device＇ s various kinds of configuration information and real-time running state. Practice shows that the system is very stable and effective in playing the safety protective role.