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Experimental Test Bed to Enable Realistic Evaluations for Direct Transfer Trip Relaying via Private Wireless LTE Communications

机译：实验性测试台，可通过专用无线LTE通信对直接传输跳闸中继进行现实评估

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摘要

Increasing penetration levels of inverter-based distributed energy resources (DERs) in distribution systems are creating challenges in system operation. Currently, wired or proprietary wireless communications are used by advanced distribution management systems (ADMS) to detect the state of the system and control the DERs for optimal operation. Wireless communications are an alternative solution that can enable connectivity between the dispersed assets used in distribution system applications. This paper demonstrates an experimental test bed to enable the realistic evaluation of communications system characteristics for direct transfer trip (DTT) relaying of a photovoltaic inverter system using a private 900-MHz spectrum wireless LTE network. Private LTE network communications can be deployed to many remote DERs and other grid-edge devices to prevent costly infrastructure upgrades across distribution systems. In addition, this paper provides a framework for evaluating the impact of signal strength and network traffic in communications systems. The results shown develop a better understanding of the best practices for using LTE communications systems across multiple utility applications, such as protective relaying, voltage regulation, and supervisory control and data acquisition system messages.
机译：配电系统中基于逆变器的分布式能源（DER）的普及程度不断提高，这对系统运行提出了挑战。当前，高级分配管理系统（ADMS）使用有线或专有无线通信来检测系统状态并控制DER，以实现最佳操作。无线通信是一种替代解决方案，可以实现配电系统应用程序中使用的分散资产之间的连接。本文演示了一个实验测试台，可以对使用专用900 MHz频谱无线LTE网络的光伏逆变器系统的直接传输跳闸（DTT）中继进行通信系统特性的实际评估。可以将专用LTE网络通信部署到许多远程DER和其他网格边缘设备，以防止跨分发系统进行昂贵的基础架构升级。此外，本文提供了一个框架，用于评估通信系统中信号强度和网络流量的影响。显示的结果使人们更好地了解了在多种公用事业应用中使用LTE通信系统的最佳实践，例如保护继电器，电压调节以及监控和数据采集系统消息。

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