Abstract Green energy Internet is a new concept for future power systems based on high-level interconnection among different systems for energy efficient delivery and manage energy resources. Smart grid is one of the core energy management system based on multiple routing and data transferring services for energy management, distribution, pricing, and demand services. The traditional energy networks have suffered from high and complex computing operations and lead to degradation of services and the overall performance of all operations. Software-Defined Networking (SDN) is one of the platform to enhance the flexibility and efficiency by decoupled the control plane from its data plane. A detachment of these two-planes improved dynamic configuration, controller programmability, centralized and decentralized network operations. In this paper, a distributed SDN approach is used to address the scalability and robustness issues and improve the overall energy efficiency in smart grid systems. The SDN controller logically centralized but it works on multiple nodes that physically distributed. Distributed nodes are communicating with each other and improve the network performance to assist data flow. When flow arrives through end devices to any data plane in distributed SDN, the proposed approach supports the data plane to increase the controller response time. Also, the controller checks, whether the data needs to prioritize flow to send it locally or globally with the help of Elephant or Mice flow. The proposed approach is used to reduce the controller workload, response time, and manage Quality of Services (QoS) and enhanced energy efficiency among controllers. This approach also improves the green energy utilization in smart grid systems. The experimental results indicate that the proposed approach is more suitable and feasible for smart grid systems.

中文翻译：

---

一种分布式软件定义网络模型，用于提高智能电网系统灵活绿色能源互联网的可扩展性和服务质量

摘要 绿色能源互联网是未来电力系统的一种新概念，基于不同系统之间的高层次互联，实现能源高效输送和管理。智能电网是基于多种路由和数据传输服务的能源管理、分配、定价和需求服务的核心能源管理系统之一。传统能源网络受到高复杂计算操作的困扰，导致服务和所有操作的整体性能下降。软件定义网络 (SDN) 是通过将控制平面与其数据平面解耦来提高灵活性和效率的平台之一。这两个平面的分离改进了动态配置、控制器可编程性、集中和分散的网络操作。在本文中，分布式 SDN 方法用于解决可扩展性和稳健性问题，并提高智能电网系统的整体能源效率。SDN 控制器在逻辑上是集中的，但它在物理分布的多个节点上工作。分布式节点相互通信并提高网络性能以辅助数据流动。当流量通过终端设备到达分布式 SDN 中的任何数据平面时，所提出的方法支持数据平面以增加控制器响应时间。此外，控制器还会检查数据是否需要优先考虑流以在 Elephant 或 Mice 流的帮助下在本地或全局发送。所提出的方法用于减少控制器工作负载、响应时间、管理服务质量 (QoS) 并提高控制器之间的能效。这种方法还提高了智能电网系统中的绿色能源利用率。实验结果表明，所提出的方法更适用于智能电网系统。