基于CAN总线和ARM的变电站在线监测装置的研制

On-line Monitoring Device in Substation Based on the Technology of CAN Bus and ARM Microprocessor

设计了一个分层分布式的变电站在线监测系统。该监测系统在各个不同间隔内的智能电子装置(IED)采用CAN总线和ARM处理器为核心,实现对本间隔内一次设备的实时监测和控制。装置内部各功能板通过CAN总线通信,装置和上位机通过以太网通信,提高了装置的实时性和可操作性。装置的抗干扰能力强,具有灵活的扩展能力。

A multi-layer distributed on-line monitoring system of substation is designed in this paper. The on-line monitoring IED （Intelligent Electronic Device） is placed in each bay to uninterrupledly monitor and control primary devices per hay. The IED is based on CAN filed-bus and ARM microcontroller. CAN filed-bus is introduced for internal communication and ethernet for external communication with substation computer. The presented device is excellent in the ability of real-timing, interoperability, anti-jamming and extensibility.