Multi-Level Network Topology and Time Series Multi-Scenario Optimization Planning Method for Hybrid AC/DC Distribution Systems in Data Centers

With the rapid development of the Internet, cloud computing, big data, artificial intelligence, and other information technologies, data centers have become a crucial part of modern society's infrastructure, which puts forward very high requirements for the safety and reliability of power supply. Most of the servers, networks, and other equipment in data centers are DC-driven loads, which can significantly enhance resource utilization efficiency by efficiently accessing the DC power supply through voltage source converter-based high-voltage direct current transmission and distribution technology. For this reason, this paper first proposes a multi-level network topology design method for AC/DC distribution systems in the context of data centers. Based on the analysis of the adaptability of AC/DC distribution systems in data center access, the design and analysis of its multi-level network topology is carried out at the physical level for the construction of hybrid AC/DC distribution systems in data center. On this basis, a time series multi-scenario planning model of AC/DC distribution system with distributed generation in data center is established, the configuration strategy of AC/DC distribution system is investigated, and a time series multi-scenario optimization planning method for hybrid AC/DC distribution systems in data centers is proposed. Finally, the validity of the proposed method is verified by simulation examples.