AI 中文总结
研究交直流混合微电网中电池储能系统分布式协同控制，提出能源互联网范式下灵活可扩展控制框架，能实现荷电状态平衡等，通过添加或移除交互链路实现即插即用，经仿真验证方案正确性。
AI 中文摘要
交直流混合微电网融合了交流和直流微电网的优点，摒弃了一些缺点，被认为是最有前途的电网结构并逐渐应用于社区。通常，交流子电网和直流子电网通过双向互联功率变换器（BILPCs）互连。鉴于交流和直流子电网不同的下垂特性，需要为交直流混合微电网设计合适的分布式二次控制器。本文提出了一种灵活且可扩展的分布式控制框架，用于能源互联网范式下具有BILPCs的交直流混合电池储能系统（ADHB）。由多智能体系统通过云服务器管理的ADHB可实现荷电状态平衡、按比例功率共享、频率和电压恢复。该控制框架通过添加或移除多智能体系统间的交互链路实现即插即用。对于ADHB中的单个BILPC，有功/无功功率、频率和电压由交流电池储能系统（AC BESS）调节。针对能源互联网中的并行BILPC，提出了一种分散式二次控制方案，并分析了通信延迟问题和稳定性。相关仿真结果验证了所提方案的正确性。
英文摘要
An AC and DC hybrid microgrid, which inherits advantages of AC and DC microgrids and discards some disadvantages, is considered to be the most promising power network structure and gradually applied in the community. Usually, the AC subgrid and the DC subgrid are interconnected by Bidirectional Interlink Power Converters (BILPCs). Besides, in view of the different droop characteristics of AC subgrid and the DC subgrid, it is necessary to design a suitable distributed secondary controller for an AC and DC hybrid microgrid. Accordingly, this paper proposes a flexible and scalable distributed control framework for an AC and DC hybrid battery energy storage system (ADHB) with BILPCs in an Energy Internet (EI) paradigm. An ADHB governed by multi agent systems via a cloud server can reach the State-of-Charge balance, proportional power sharing, frequency and voltage restoration. The proposed control framework provides the group play-and-plug by adding or removing an inter-MASs interaction link. For a single BILPC in an ADHB, active/reactive power, frequency and voltage are adjusted by an AC BESS. For the parallel BILPCs in EI, a decentralized secondary control scheme is proposed. Communication delay issues and stability are analysed. Then, the relevant simulation results verify the correctness of the proposed scheme.
DOI：10.1109/TPWRS.2023.3266730
