The phasor measurement unit (PMU) has evolved as an indispensable tool for real-time monitoring and control of the power system, thereby leading to its large-scale deployment in a wide-area measurement system (WAMS). Communication system plays a significant role for transferring measured real-time PMU data to the phasor data concentrator (PDC) for monitoring and control purposes. The propagation delay depends on the spatial position of the PMUs with respect to the PDC and the communication network. This paper deals with the problem of co-optimal placement of PMUs and their communication infrastructure for minimization of propagation delay in a WAMS. The novelty of the work is to explore the feasibility of microwave communication technology as an alternative to the existing fiber-based communication infrastructure in the WAMS. The proposed approach takes the link reliability and the geographical topological variations into consideration for the placement of the microwave links so as to minimize the propagation delay. The merit of the microwave communication technology in the framework of the WAMS is evaluated in terms of its cost and reliability. Simulation results and the propagation delay evaluations for the Eastern power grid of India validate the efficacy of the proposed approach in practical field applications.

中文翻译：

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PMU及其通信基础结构的最佳选择，可最大程度地减少WAMS中的传播延迟

相量测量单元（PMU）已经发展成为用于电力系统实时监视和控制的必不可少的工具，从而导致其在广域测量系统（WAMS）中的大规模部署。通信系统在将测量的实时PMU数据传输到相量数据集中器（PDC）进行监视和控制方面起着重要作用。传播延迟取决于PMU相对于PDC和通信网络的空间位置。本文讨论了PMU及其通信基础设施的最优放置问题，以最大程度地减少WAMS中的传播延迟。这项工作的新颖性是探索微波通信技术作为WAMS中现有的基于光纤的通信基础结构的替代方案的可行性。所提出的方法在微波链路的布置中考虑了链路可靠性和地理拓扑变化，从而使传播延迟最小。在成本和可靠性方面评估了WAMS框架中微波通信技术的优点。印度东部电网的仿真结果和传播延迟评估证明了该方法在实际现场应用中的有效性。