基于现场总线的配电网智能重合控制器

An intelligent recloser controller based on fieldbus used in power distribution networks

针对国内配电网设备的现状 ,提出一种基于现场总线的中压配电网馈线自动化系统中户外柱上型智能重合控制器方案 .以 16位工业级微控制器Intel 87C196KC为核心 ,应用现场总线和智能化技术 ,将测量、控制、保护、计量、远动和故障诊断等综合自动化与配电自动化功能就地分散到户外开关设备本体上 ,采用CAN总线作为系统的通信网络 ,构成配电设备的户外全分布式对称型多主站网络结构 .现场应用结果表明 :其性能可靠且运行稳定 ,实现了在户外恶劣环境下 ,波特率为 76 .8KB s、距离为 12 0 0m的站内现场高速通讯 ;既能与目前广泛应用的变电站综合自动化、调度自动化系统相结合 ,又可为配电自动化打下基础 .

The intelligent recloser controller installed on the outdoor rod based on fieldbus used in the power distribution networks is proposed in view of existing situation of electric devices of distribution power network in our country. This new intelligent recloser controller is mainly composed of Intel 87C196KC and includes in itself all the functions of measuring, controlling, protection, calculation, remote controlling and fault diagnosis based on fieldbus and intelligent technology. All the functions are distributed on the outdoor switches devices, CAN fieldbus is adopted in the communication network, so the multi master architecture is formed. And the results of the application show that the system is reliable and work smoothly.It has realized the high speed communication with 76.8 KB/s Baud rate within 1?200 m around the station even under very bad condition. Not only will it be connected with substation and dispatching automation system but also can lay a foundation of distribution feeder automation system.