Microgrid Controller and Distributed Energy Resource Functionality Verification via Laboratory and Field Verification

Abstract

The increased interest in microgrids as both a system for local energy optimization and for improved resiliency comes with a need for new controller strategies that can help realize these applications. The new controllers should also reflect industry standards and provide a platform for continued innovation. A flexible controller with standard functions and interfaces can expand community opportunities for microgrids.The paper summarizes the results from a two-year study that was conducted jointly Spirae, National Renewable Energy Laboratory (NREL), and EDF R&D. This research which was funded by US Department of Energy (DOE) determined microgrid controller requirements using a use-case approach, then developed, configured, and validated performance of a microgrid controller capable of managing from 1 to 10 megawatts (MW) of aggregated generation capacity. After defining the requirement specifications and developing a generic controller architecture as well as functionality, the microgrid controller was first tested at two premier testing facilities in US so that it can be easily adapted at various end-user community applications and to a wide range of electric grid characteristics. After lab testing was completed, the microgrid controller was configured at EDF’s Concept Grid field site and demonstrated the ability of the controller to meet the needs of this system with diverse assets and resiliency requirements.