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This paper describes an automated, distributed approach to controlling, operating, and managing electric power within a microgrid. Operation in the context of an external primary power grid is considered. We wish to construct a system that will allow us to state and enforce an energy policy that captures what we want the system to do under various conditions, including light and full duty cycles with...
This paper describes the application of an SCR-based static switch, located at the point of common coupling (PCC), in a designed microgrid, which incorporates a high level system control scheme to maintain compliance with IEEE Standard 1547. In this application distributed resource equipment, which may be considered non-compliant, has been uniquely applied beyond the static switch to increase reliability,...
This paper describes field testing of the CERTS Microgrid concepts in an actual hardware installation. The test setup, including hardware that incorporates the CERTS controls, is installed at American Electric Power's Walnut Test Site, near the AEP Dolan Test Center. The results of a variety of tests that cover different scenarios of step load changes and transitions from utility-tied to islanded...
Autonomous, customer-driven microgrids can harden power systems by providing significant reliability and security benefits. However, these benefits can best be achieved by utilities and system planners adopting a "can do" attitude that approaches the problem as that of metamorphosis of today's distribution systems into tomorrow's microgids, rather than as a reluctant, gradual and incremental...
The California Energy Commission is cost-sharing research with the Department of Energy through the National Renewable Energy Laboratory to address distributed energy resources (DER) topics. These efforts include developing interconnection and power management technologies, modeling the impacts of interconnecting DER with an area electric power system, and evaluating possible modifications to rate...
The availability of affordable and reliable energy is one of the most crucial requirements for economic development and modernization of developing countries. This is particularly important in Africa. With a population of 13.4% of the world and a land area of 15%, Africa has only 2% of the world's industrial capacity. Its per capita income is only 15% of the world average and only consumes 3% of world...
This paper introduces an energy-flow model developed for performance analysis and unit sizing of an autonomous wind-diesel microgrid. A remote community in Canada is used as the study system, for which a medium penetration wind power plant has been integrated into a system served by a diesel plant with three equally sized diesel generators. Based on field observations and monitored data for almost...
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