SEPOC 2018-SANTA MARIA RS BRAZIL 21-24 OCTOBER 2018
Plenary Session 2: Dual DC nanogrid with interlink converter
Abstract:
The concept of nanogrids is suitable for application in net-zero energy homes. These should produce as much energy, ideally from renewables, as they consume. Ideally, they should be grid connected while capable of operating autonomously. Thus, appropriate means for energy storage and management are essential. In this talk, the conventional AC nanogrid is briefly discussed and then DC nanogrids are introduced. The basic characteristics of single-bus DC nanogrids are presented including power electronic interfaces controlled in a decentralized way with a hierarchical structure based on DC bus signaling (DBS). The alternative of a Dual DC bus system with power sources and storage units are employed in both buses is discussed. Bi-directional power flow between buses is achieved by means of an interlink converter. The concept of a protection system based on the coordination of power electronic interfaces and contactors suitable for DC nanogrids is introduced.
Speaker: Prof. Luiz Lopes
Concordia University, Canada
Luiz Lopes obtained his M.A.Sc. degree from UFSC (Brazil) in 1989 and the PhD degree from McGill University (Canada) in 1996. From 1996 to 2001 he was an Associate Professor with UFPA (Brazil). He joined the department of Electrical and Computer Engineering of Concordia University (Canada) in 2002, where he is a Professor. He has been an invited professor at EPFL (Switzerland), Université de Toulouse (France), SUPELEC (France) and UTBM (France). His expertise includes power electronics, renewable energy systems and distributed power generation. He has published more than 140 papers in refereed journals and conference proceedings and trained more than 40 graduate students. His research has been supported by NSERC (Discovery Grant, CRD, Engage), government agencies/laboratories (CanmetENERGY) and industry partners (ALCOA, Geodata, Bombardier, TM4, OPAL-RT, THALES). Dr. Lopes was a technical representative for Canada in Task 11 “PV Hybrid Systems within Mini-grids” of IEA-PVPS and leader of Activity 21 on mini-grid stability. He is a member of the international advisory board of Efficacity, French urban energy transition Institute. Dr. Lopes is a senior member of the IEEE and a member of the Ordre des Ingénieurs du Québec.
