对于具有三种充电模式的直流巴士充电站,完全分布式的能源管理策略
Rui Wang1,2, Xu Tian3, Zhongbao Wei4
1Northeastern University, Shenyang, 110819, China. wangrui@ise.neu.edu.cn.
Scientific reports
|January 6, 2025
概括
本研究介绍了岛屿电动汽车充电站的新型分布式控制策略,确保分布式发电机之间准确的电流分配. 该方法避免了复杂的网络信息,使充电基础设施的可扩展开发成为可能.
科学领域:
- 电气工程 电气工程
- 电力系统 电力系统
- 控制理论 控制理论
背景情况:
- 电动汽车 (EV) 减少二氧化碳排放,但岛屿多巴士直流充电站在准确的电流共享方面面临挑战.
- 现有的方法需要全球网络信息和高带宽,阻碍大规模部署.
- 电动汽车具有多种充电模式 (恒定电流,恒定功率,恒定电压),使控制复杂化.
研究的目的:
- 提出一个完全分布的动态事件触发的共识控制,用于在岛屿式多巴士直流充电站中准确的电流共享.
- 克服全球结构信息和高通信带宽要求的局限性.
- 为了应对多种电动汽车充电模式所带来的挑战.
主要方法:
- 开发了多巴士直流充电站的系统模型,具有三个电动汽车充电模式.
- 设计了一个主要的虚拟阻抗控制器,以减轻来自恒定功率负载的低频振荡.
- 制定了一个状态空间函数,考虑DC总线之间的功率合.
- 提出了一个完全分布式的动态事件触发共识控制,使用合权重来确定没有全球网络拓的控制收益.
主要成果:
- 在岛屿多巴士直流充电站中,在分布式发电机 (DG) 之间实现了准确的电流共享.
- 成功消除由恒定功率充电引起的低频振荡.
- 证明在拟议的控制策略中没有Zeno行为.
- 通过模拟和实验结果验证了控制方法.
结论:
- 拟议的完全分布式的动态事件触发共识控制有效地实现了在岛屿直流充电站中准确的电流共享.
- 控制策略适用于不同的电动汽车充电模式,不需要全球网络信息.
- 这种方法有助于大规模开发高效可靠的电动汽车充电基础设施.
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