New Decentralized Control of Mesh AC Microgrids: Study, Stability, and Robustness Analysis

Sustainability

Abdelmajid Berdai¹  Farid Meibody-Tabar²  Youssef Hennane²  Jean-Philippe Martin²  Serge Pierfederici² 

[1] Electrical Engineering Department, National Superior School of Electricity and Mechanics (ENSEM), Hassan II University, Route d’El Jadida, km 7, Oasis, Casablanca BP 8118, ‎Morocco‎;Laboratoire Énergies & Mécanique Théorique et Appliquée LEMTA, Centre National de la Recherche Scientifique CNRS, Université de Lorraine, 54000 Nancy, France;

关键词: droop control;    mesh microgrids;    power sharing;    synchronization;    system stability;    robustness analysis;   

DOI  :  10.3390/su13042243

来源: DOAJ

【 摘 要 】

In this paper, we investigated the power sharing issues in mesh islanded microgrids that contain several distributed generators (DGs) and loads connected to different points of common coupling (PCC). Firstly, an improved decentralized droop control algorithm is proposed to achieve the active and reactive power sharing of different DGs in reconfigurable mesh islanded microgrids. Accurate power sharing was obtained even though line parameters or the mesh microgrid configuration were unknown. Secondly a state-space model of the whole mesh microgrid was developed, considering several generators with their decentralized controllers, line feeders, and dynamic loads. This model was used to design parameters of droop controllers, to study the asymptotic stability and the robustness properties of the system. All strategies and analyses were validated by simulation based on the generic microgrid detailed in the standard IEEE 9bus test feeder.

【 授权许可】

Unknown