On the economic benefits of software-defined networking and network slicing for smart grid communications
On the economic benefits of software-defined networking and network slicing for smart grid communications
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DOI：
10.1007/s11066-018-9124-3
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发表时间：
2018-09
期刊：
影响因子：
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通讯作者：
N. Dorsch;Fabian Kurtz;C. Wietfeld
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文献类型：
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作者：
N. Dorsch;Fabian Kurtz;C. Wietfeld
为了确保稳定运行，智能电网依靠超可靠、低延迟的通信来传输关键的测量和控制命令。虽然现代信息和通信技术（ICT）提供了充分的手段来维护硬服务保障，但相应基础设施的安装、配置和操作通常非常昂贵，涉及大量的管理工作。因此，我们提出软件定义网络（SDN），以大大简化配置和管理，从而减少支出。我们确定了将这种方法引入智能电网通信基础设施的技术优势，并获得了经济效益。参考电力系统的数值结果表明，运营支出（OPEX）驱动的节省使SDN解决方案在不到四年的时间内超越传统网络。此外，sdn驱动的网络切片可以在关键电力系统和终端消费者宽带流量之间共享基础设施，从而进一步降低成本，同时保持硬服务保证。在这种模式下，我们将电网运营商安装和运营专用基础设施与与电信网络运营商签订服务合同进行比较。这被称为makeorbuydecision。可以推断，基于网络切片的共享基础设施为双方提供了最佳解决方案。
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 asmakeorbuydecision. It can be deduced that a shared infrastructure, building on network slicing, provides an optimal solution for both parties.