现场总线技术在微机母线保护中的应用

Application of field bus technology in digital bus protection

针对微机母线保护需要多CPU实现 ,而各个CPU之间的通信有可能给保护带来较强的干扰这一矛盾 ,提出应用现场总线技术中的CAN总线。简单描述了CAN总线技术的通信协议及应用方法。使用上述技术 ,经实践证明 ,CAN总线技术具有高抗干扰性、高可靠性、低出错等优点 ,通信效果良好。

It is necessary to apply several CPUs in digital bus protection,but the communication among these CPUs may generate strong interference to protection.The CAN bus of the field bus technology is proposed.Its communication protocols and applications are introduced.The practice shows that the CAN bus technology has better anti interference ability,high reliability,low communication error rate and excellent communication efficiency.