| 引用本文: | 王海柱,蔡泽祥,张延旭,邵向潮,李一泉,竹之涵.提升智能变电站信息流实时性和可靠性的定质交换技术[J].电力自动化设备,2014,34(5): |
| WANG Haizhu,CAI Zexiang,ZHANG Yanxu,SHAO Xiangchao,LI Yiquan,ZHU Zhihan.Custom switching technology to improve reliability and real-time performance of information flow in smart substation[J].Electric Power Automation Equipment,2014,34(5): |
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| 摘要: |
| 首先基于OPNET仿真平台，从传输时延抖动、丢包以及传输路径等角度，分析了通用交换技术应用于智能变电站信息交换时存在的不足。然后从满足智能变电站信息流的实时性和可靠性需求出发，提出了定质交换实现技术。该技术基于多协议标签交换（MPLS）的多级子队列实现报文的分层调度，基于区域划分实现动态缓存分配，基于路径消耗为报文提供多种路径选择。最后结合实际智能变电站，在OPNET平台上构建了共网传输场景下的定质交换模型，仿真结果说明了所提定质交换技术能够合理地分配交换资源，是可行和有效的。 |
| 关键词: 智能变电站 定质交换 信息流 实时性 可靠性 通信 |
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| 基金项目:广东省科技计划项目（2010B010900028） |
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| Custom switching technology to improve reliability and real-time performance of information flow in smart substation |
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WANG Haizhu1, CAI Zexiang1, ZHANG Yanxu1, SHAO Xiangchao1, LI Yiquan2, ZHU Zhihan3
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1.College of Electrical Engineering，South China University of Technology，Guangzhou 510640，China;2.Guangdong Power Dispatch Centre，Guangzhou 510600，China;3.Guangzhou PtSwitch Co.，Ltd.，Guangzhou 510665，China
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| Abstract: |
| Based on OPNET simulation platform，the deficiency of general switching technology applied in the switching of smart substation information is analyzed from different aspects：transmission delay jitter，packet loss，transmission path，etc. An implementation technology of custom switching is proposed to improve the reliability and real-time performance of smart substation information flow，which hierarchically dispatches the messages based on the multi-layer subqueue with MPLS（Multiple Protocol Label Switching），dynamically allocates the buffer based on the buffer division，supports multiple paths for message transfer based on the path loss. A custom switching model is established on OPNET simulation platform for an actual smart substation，where different information flows share a network，and the simulative results show that，the switching resources are reasonably allocated and the proposed switching technology is feasible and effective. |
| Key words: smart substation custom switching information flow real-time reliability communication |
