Abstract
To support distributed energy generators and improve energy utilization, energy Internet has attracted global research focus. In China, energy Internet has been proposed as an important issue of government and institutes. However, managing a large amount of distributed generators requires smart, low-latency, reliable, and safe networking infrastructure, which cannot be supported by traditional networks in power grids. In order to design and construct smart and flexible energy Internet, we proposed a software defined network framework with both microgrid cluster level and global grid level designed by a hierarchical manner, which will bring flexibility, efficiency, and reliability for power grid networks. Finally, we evaluate and verify the performance of this framework in terms of latency, reliability, and security by both theoretical analysis and real-world experiments.
Highlights
“Smart grid” applies communication and networking technologies into the power grid to allow for more efficient generation, transmission, distribution, and usage of energy [1], which lead to a sustainable energy generation and consumption
Compared with traditional power grid, energy Internet is characterized by the access of massive distributed DGs, highly intelligent control, highly effective energy utilization, flexible energy trading online, and series of novel business scenarios
We have summarized the state-of-the-art development for energy Internet in China and analyzed the requirements such as flexibility, latency, and reliability for communication networks in energy Internet
Summary
“Smart grid” applies communication and networking technologies into the power grid to allow for more efficient generation, transmission, distribution, and usage of energy [1], which lead to a sustainable energy generation and consumption. More distributed renewable energy terminals, such as wind power and solar power, can be allowed to access the energy Internet through ubiquitous networks. They will considerably improve the proportion of renewable energy usage and reduce greenhouse gas emissions. We proposed an SDN-enabled hierarchical communication network architecture, which satisfies the requirements for information interaction in energy Internet. The network frameworks of microgrid cluster level and global grid level are designed, respectively Performances such as latency, reliability, and security of the proposed communication network framework are analyzed and some available approaches are enumerated, which can contribute to ensuring these performances.
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