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首页> 外文会议>2019 1st Global Power, Energy and Communication Conference >Effects of LAN-based Communication Delays on the Dynamic Stability of Power Systems
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Effects of LAN-based Communication Delays on the Dynamic Stability of Power Systems

机译：基于局域网的通信延迟对电力系统动态稳定性的影响

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摘要

This paper studies the delays in local area networks (LAN) for future communication applications in protections of power systems. LAN-based networks are a crucial component in modern power plants and substations, and the usage of these networks for the exchange of information among digital relays is gaining popularity and becoming a standard communication solution. These systems can distribute the information needed for operation of relays and control systems based on supported simple models of LAN networks such as carrier sense multiple access with collision detection (CSMA/CD), carrier sense multiple access with arbitration on message priority (CSMA/AMP), frequency division multiple access (FDMA), time division multiple access (TDMA), PROFINET and Switched Ethernet. The Bandwidth and the date rate are among the most important factors in communications that might cause delays in received information which subsequently, can cause errors in the tripping time of digital relays and hence; the stability of power systems. A case study of a power system and LAN-based network emulator were used to model the communication working conditions and how abnormal working conditions can affect the performance of the dynamic stability of the power systems. Simulation results were presented and discussed.
机译：本文研究了局域网（LAN）中的延迟，以用于将来在电力系统保护中的通信应用。基于LAN的网络是现代发电厂和变电站的重要组成部分，这些网络用于数字中继之间的信息交换的用法正变得越来越流行，并成为标准的通信解决方案。这些系统可以基于LAN网络的受支持简单模型来分发继电器和控制系统操作所需的信息，例如带有冲突检测的载波侦听多路访问（CSMA / CD），具有消息优先级仲裁的载波侦听多路访问（CSMA / AMP） ），频分多址（FDMA），时分多址（TDMA），PROFINET和交换式以太网。带宽和日期速率是通信中最重要的因素，这些因素可能导致接收到的信息出现延迟，继而可能导致数字继电器的跳闸时间错误，因此；电力系统的稳定性。以电力系统和基于LAN的网络仿真器为例，对通信工作条件以及异常工作条件如何影响电力系统动态稳定性的性能进行建模。提出并讨论了仿真结果。

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