The plug-and-play nature of distributed generation (DG) units in converter-interfaced microgrids imposes significant challenges from the control point of view, mainly caused by the time-varying microgrid structure. In this letter, we propose a systematic plug-and-play decentralized voltage control solution for DC microgrids. The proposed control approach guarantees the stable operation and satisfactory performance of microgrids under the arbitrary interconnection of DG units. Based on the Lyapunov method, concise stability and $\mathscr {L}_{2}$ gain voltage tracking performance certificates for DC microgrids are derived. The main feature of the proposed control approach is the decentralized design of local voltage controllers in DC microgrods. The proposed voltage control framework is applied to a case study of a multiple-DG DC microgrid in MATLAB/Simscape Electrical environment.

中文翻译：

---

直流微电网的与线路无关的即插即用电压稳定度和L2增益性能

从控制的角度来看，转换器接口微电网中分布式发电（DG）单元的即插即用特性带来了重大挑战，这主要是由随时间变化的微电网结构引起的。在这封信中，我们为直流微电网提出了系统的即插即用分散式电压控制解决方案。所提出的控制方法保证了在DG单元任意互连下微电网的稳定运行和令人满意的性能。基于李雅普诺夫方法，推导了直流微电网的简洁稳定性和$ \ mathscr {L} _ {2} $增益电压跟踪性能证书。所提出的控制方法的主要特征是直流微电网中本地电压控制器的分散设计。