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arXiv 1503.06292eess.SYcs.SY

一种去中心化可扩展方法用于直流孤立微电网的电压控制

A decentralized scalable approach to voltage control of DC islanded microgrids

Università degli Studi di Pavia(帕维亚大学);United Technologies Research Center Ireland(联合技术研究中心爱尔兰);Institute of Energy Technology, Aalborg University(奥尔堡大学能源技术研究所)

Michele Tucci, Stefano Riverso, Juan C. Vasquez, Josep M. Guerrero, Giancarlo Ferrari-Trecate

AI总结:

本文提出了一种去中心化控制方案,用于由多个分布式发电单元组成的直流孤立微电网,通过优化问题确保系统稳定性,实现控制器的可扩展性。

摘要:

我们提出了一种新的去中心化控制方案,用于由多个分布式发电单元组成的直流孤立微电网。每个本地控制器调节对应分布式发电单元的公共耦合点的电压参考值。值得注意的是,离线控制设计以即插即用的方式进行,这意味着(i)通过优化问题检查添加或移除分布式发电单元而不破坏系统稳定性;(ii)当分布式发电单元插拔时,最多相邻的分布式发电单元必须更新其控制器;(iii)本地控制器的合成仅使用对应分布式发电单元及其连接线路的信息。这保证了随着微电网规模扩大或分布式发电单元更换时,控制合成的总可扩展性。是的,在对线路动态进行适度近似的情况下,我们正式保证了整个闭环微电网的稳定性。所提出控制器的性能通过在PSCAD中模拟不同场景进行分析。

英文摘要:

We propose a new decentralized control scheme for DC Islanded microGrids (ImGs) composed by several Distributed Generation Units (DGUs) with a general interconnection topology. Each local controller regulates to a reference value the voltage of the Point of Common Coupling (PCC) of the corresponding DGU. Notably, off-line control design is conducted in a Plug-and-Play (PnP) fashion meaning that (i) the possibility of adding/removing a DGU without spoiling stability of the overall ImG is checked through an optimization problem; (ii) when a DGU is plugged in or out at most neighbouring DGUs have to update their controllers and (iii) the synthesis of a local controller uses only information on the corresponding DGU and lines connected to it. This guarantee total scalability of control synthesis as the ImG size grows or DGU gets replaced. Yes, under mild approximations of line dynamics, we formally guarantee stability of the overall closed-loop ImG. The performance of the proposed controllers is analyzed simulating different scenarios in PSCAD.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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