异构电池储能设备在下垂控制下的分布式逐步有限时间一致性设计
A Distributed Step-by-step Finite-time Consensus Design for Heterogeneous Battery Energy Storage Devices with Droop Control
中文总结 AI 辅助
针对异构电池储能系统，提出一种分布式逐步有限时间一致性控制方案，实现能量均衡、功率共享及电压频率恢复，并在IEEE 57节点系统验证其有效性。
中文摘要 AI 辅助
由于在大规模电力系统中所有发电机分布在不同区域，若不考虑发电机的距离信息，多发电机系统的协同操作无法良好实现。本文针对异构电池储能系统（BESS）提出了一种分布式逐步有限时间一致性方案，该方案能在有限时间内实现协调一致性，这对电气工程领域具有吸引力。具体而言，首先，根据位置将所有BESS划分为若干簇，每个簇内有一个主动领导者负责从外部接收信息。然后，为了协调多个BESS，使用了五个面向功能的输入，以实现多BESS的能量水平均衡、有功/无功功率共享以及电压/频率同步。进一步地，通过引入虚拟领导者（实际上是一个外部领导者），实现了频率和电压恢复到主电网的标称值。与集中式方法相比，该控制方案完全分布式，每个BESS仅利用自身及其邻居的信息。此外，该控制对负载扰动和通信拓扑的即插即用具有鲁棒性。最后，在改进的IEEE 57节点系统上执行了一些仿真实验，以验证所提出的方案。
英文摘要
As all generators are distributed in different areas among large scale power systems, the cooperative manipulation of the multi-generator system cannot be done well without consideration of the distance information of the generators, A distributed step-by-step finite-time consensus scheme for the heterogeneous Battery Energy Storage System (BESS) is proposed in this paper, where the coordinated consensus can be come into reality within a limited time, which is appealing for the electrical engineering community. To be concrete, at first, all BESSs are classified into several clusters according to their locations, and in each cluster, there is an active leader in charge of information receiving from outside. Then after, in order to coordinate the multi BESSs, five inputs, which are function oriented, were used to achieve energy level balancing, active/reactive power sharing, and voltage/frequency synchronization of the multi BESSs. To be further, the frequency and voltage restoration to the nominal values of the main grid was made possible by the introduction of a virtual leader, which is actually an external leader. Compared with the centralized methods, this control scheme is entirely distributed, and each BESS only utilizes the information of its own and its neighbors. Besides, this control is robust to the load perturbation and the plug-and-play of the communication topology. Finally, some simulation experiments are executed on the modified IEEE 57-bus system to verify the suggested scheme.
