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On the economic benefits of software-defined networking and network slicing for smart grid communications

机译：关于用于智能电网通信的软件定义网络和网络切片的经济利益

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摘要

To ensure stable operation, Smart Grids rely on ultra-reliable, low latency communications for transmitting critical measurements and control commands. Though modern Information and Communication Technology (ICT) provides adequate means for asserting hard service guarantees, the installation, configuration and operation of corresponding infrastructures is typically very costly, involving significant administration efforts. Therefore, we propose Software-Defined Networking (SDN) to facilitate configuration and administration drastically, thus reducing expenditures. We identify technical advantages of introducing this approach to Smart Grid communication infrastructures and derive economic benefits. Numerical results for a reference power system indicate Operational Expenditures (OPEX)-driven savings that allow SDN solutions to outperform legacy networks within less than four years. Also, SDN-driven network slicing enables sharing infrastructures between critical power systems and end consumer broadband traffic, allowing for further cost reductions, while maintaining hard service guarantees. Under this paradigm, we compare the installation and operation of dedicated infrastructure by the grid operator to arranging service contracts with telecommunication network operators. This is referred to as make or buy decision. It can be deduced that a shared infrastructure, building on network slicing, provides an optimal solution for both parties.
机译：为了确保稳定的运行，智能电网依靠超可靠的低延迟通信来传输关键的测量和控制命令。尽管现代信息和通信技术（ICT）提供了确定硬服务保证的适当方法，但是相应基础结构的安装，配置和操作通常非常昂贵，需要大量的管理工作。因此，我们提出了软件定义网络（SDN），以大大简化配置和管理，从而减少支出。我们确定将这种方法引入智能电网通信基础设施的技术优势，并获得经济利益。参考电源系统的数值结果表明，由运营支出（OPEX）推动的节省使SDN解决方案在不到四年的时间内即可超越传统网络。此外，SDN驱动的网络切片可在关键电源系统和最终用户宽带流量之间共享基础架构，从而在保持硬服务保证的同时，进一步降低成本。在这种范式下，我们将网格运营商的专用基础设施的安装和运营与与电信网络运营商的服务合同进行比较。这称为制作或购买决定。可以推断出，基于网络切片的共享基础架构为双方都提供了最佳的解决方案。

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