Chapter 8 tutorial on microgrids

Introduction to MicroGridsIntegration of Renewable Energy Nguyen Huu Phuc Email: nhphuc@hcmut.edu.vn; nhphuc123@yahoo.com; Klipsch School of Electrical- Computer Engineering New Mexico State University Microgrid Definitions • U.S DOE: A microgrid is a localized grouping of electricity sources and loads that normally operates connected to and synchronous with the traditional centralized grid (macrogrid), but can disconnect and function autonomously as physical and/or economic conditions dictate • CIGRÉ Working Group: Microgrids are electricity distribution systems containing loads and distributed energy resources, (such as distributed generators, storage devices, or controllable loads) that can be operated in a controlled, coordinated way either while connected to the main power network or while islanded What is a Microgrid? That Was Then… Legacy Bulk Electrical System …This is Now Microgrids What is a Microgrid? Microgrid – Grid-Connected Mode Microgrid – Islanding Mode What is Microgrid? •It is connected to both the local generating units and the utility grid thus preventing power outages •Excess power can be sold to the utility grid •Size of the Microgrid may range from housing estate to municipal regions 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 ... (macrogrid), but can disconnect and function autonomously as physical and/or economic conditions dictate • CIGRÉ Working Group: Microgrids are electricity distribution systems containing loads and... to municipal regions 4 Comparison How does this differ from a backup system, like what a campus has? 10 11 12 13 14 15 16 17 18 19 20 21 22 Microgrid Generation 23 24 25 26 27 28 29 30 31 32 33...Microgrid Definitions • U.S DOE: A microgrid is a localized grouping of electricity sources and loads that normally operates connected to and synchronous with the traditional centralized grid