智能电网中WiMAX网络上的广域PMU通信

Reduan H. Khan, J. Khan
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引用次数: 35

摘要

未来智能电网的关键组成部分之一是广域监测和控制(WAMC)系统,该系统使用相量测量单元(pmu)连续监测电网的健康状况。pmu的测量是严格延迟敏感的,因为它们作为底层保护和控制系统的触发点。本文对智能电网中基于WiMAX/IEEE 802.16网络的广域PMU通信系统进行了详细的性能分析。它定义了PMU通信系统的基本应用模型和流量需求,并将其映射到IEEE 802.16标准的非请求授权服务(UGS)、实时轮询服务(rtPS)和尽力而为调度服务(BE)上。利用基于OPNET仿真包的离散事件仿真模型,从延迟、上行数据使用和信令开销等方面评估了这些调度服务的性能。结果表明,虽然UGS在调度服务中表现最好,但它消耗了大量的无线电资源来实现更严格的延迟界限。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Wide area PMU communication over a WiMAX network in the smart grid
One of the key building blocks of the future smart grid is a wide area monitoring and control (WAMC) system that continuously monitors the health of the grid using the phasor measurement units (PMUs). Measurements from the PMUs are strictly delay-sensitive since they act as the triggering points for the underlying protection and control systems. This paper presents a detailed performance analysis of a wide area PMU communications system over a WiMAX/IEEE 802.16 network in the smart grid. It defines the basic application models and traffic requirements of a PMU communications system and maps them over the unsolicited grant service (UGS), real-time polling service (rtPS) and best-effort (BE) scheduling services of the IEEE 802.16 standard. Using a discrete event simulation model based on the OPNET simulation package, the paper evaluates the performance of these scheduling services in terms of delay, uplink data usage and signaling overheads. The results indicate that while the UGS performs best among the scheduling services, it consumes a significant amount of radio resources to achieve a tighter delay bound.
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