智能变电站过程总线通信模型

发布时间：2018-05-27 07:30

本文选题：变电站 + 过程总线　；参考：《中国电机工程学报》2014年07期

【摘要】：为了评估智能变电站过程总线网络性能,从交换式以太网的工作原理出发,研究了过程总线通信模型。根据IEC61850描述的发布/订阅通信机制,引入了网络系统的最小空间概念。建立了由采样值(sampled value,SV)和通用面向对象的变电站事件(generic object oriented substation event,GOOSE)构建的网络交换空间模型。给出了交换空间的多播映射方法,以获得网络最优(流量)传输模型。根据优先级调度队列的阻塞特性,推导了SV、GOOSE共网传输时延上界的理论计算公式。提出了一种简单、高效且不依赖同步时钟源的过程总线网络时延评估算法,解决了工业现场网络性能的实时监视和诊断问题。以一典型变电站过程总线实验为例,验证了评估模型和算法的正确性。该项研究对智能变电站过程总线优化设计具有参考意义。
[Abstract]:In order to evaluate the performance of intelligent substation process bus network, a process bus communication model is studied based on the working principle of switched Ethernet. According to the publish / subscribe communication mechanism described by IEC61850, the concept of minimum space of network system is introduced. A network switching space model based on sampling value coupled value (SVV) and general Object-Oriented substation event generic object oriented substation event (Gooset) is established. A multicast mapping method in exchange space is presented to obtain the optimal network transport model. According to the blocking characteristics of priority scheduling queue, the theoretical calculation formula of the upper bound of transmission delay in SVGOSE is derived. A simple, efficient and independent process bus network delay evaluation algorithm is proposed, which solves the problem of real-time monitoring and diagnosis of industrial field network performance. Taking a typical substation process bus experiment as an example, the correctness of the evaluation model and algorithm is verified. This research has the reference significance to the intelligent substation process bus optimization design.
【作者单位】：广西电力系统最优化与节能技术重点实验室(广西大学);
【分类号】：TM76;TM63

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