Negirla Paul, Druță Romina, Silea Ioan
Department of Automation and Applied Informatics, Politehnica University Timisoara, 300006 Timisoara, Romania.
Sensors (Basel). 2020 Dec 17;20(24):7256. doi: 10.3390/s20247256.
An electrical power grid, is an interconnected network for delivering electricity from producers to consumers. Electrical grids vary in size from covering a single building through national grids (which cover whole countries) to transnational grids (which can cross continents). As the rollout of smart meters continues worldwide, there are use-cases where common solutions fail and the network availability of certain meters is very low due to poor communication conditions. This paper proposes a data slicing model for large data files which have to travel securely and reliably throughout the Smart Grid. The manuscript addresses improvements for PRIME PLC network availability by using correct data slicing at the application level along a tuned transmission rate in accordance with the noise levels of the power grid. Successful communications, even at low rates, mean that no manual interaction from energy supplier operators is needed reducing the maintenance costs for both the energy companies as well as for the end user. Experiments on a low power electrical grid setup have been performed in order to evaluate availability improvements through the proposed method as well as the feasibility of remote firmware upgrades. The results have shown that the current approach has similar upgrade time results with a manual firmware upgrade performed through an optical probe. Moreover, the results show that the presented remote firmware upgrade method is reliable and practical.
电网是一个将电力从生产者输送到消费者的互联网络。电网的规模各不相同，从覆盖单一建筑物的电网到国家电网（覆盖整个国家），再到跨国电网（可跨越各大洲）。随着智能电表在全球范围内的持续推广，存在一些用例，即通用解决方案失效，并且由于通信条件不佳，某些电表的网络可用性非常低。本文针对必须在智能电网中安全可靠传输的大数据文件提出了一种数据切片模型。该手稿通过在应用层使用正确的数据切片，并根据电网的噪声水平调整传输速率，来解决PRIME PLC网络可用性的改进问题。即使速率很低，成功的通信也意味着能源供应商运营商无需进行人工干预，从而降低了能源公司和最终用户的维护成本。为了评估通过所提出的方法实现的可用性改进以及远程固件升级的可行性，已在低功率电网设置上进行了实验。结果表明，当前方法与通过光学探头进行的手动固件升级具有相似的升级时间结果。此外，结果表明所提出的远程固件升级方法是可靠且实用的。
