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Integrated system to enable high-penetration feeder-level PV: Preliminary design and simulation results

: Zeifman, M.; Kromer, M.; Roth, K.


Institute of Electrical and Electronics Engineers -IEEE-; Institute of Electrical and Electronics Engineers -IEEE-, Power & Energy Society -PES-:
IEEE Power & Energy Society Innovative Smart Grid Technologies Conference, ISGT 2017 : 23-26 April 2017, Arlington, Virginia
Piscataway, NJ: IEEE, 2017
ISBN: 978-1-5386-2890-4
ISBN: 978-1-5386-2889-8
ISBN: 978-1-5386-2891-1
Conference on Innovative Smart Grid Technologies (ISGT) <8, 2017, Arlington/Va.>
Conference Paper
Fraunhofer CSE ()

We present a novel framework-the SunDial system-intended to enable integration of high-penetration commercial and utility-scale photovoltaic (PV) plants by a combination of load and energy storage management. Rather than relying on controllable loads from disparate individual buildings, SunDial uses a Facility Load Aggregation and Management Engine (FLAME) that provides a single point of input for managing the electric loads in multiple commercial and/or industrial facilities. By implementing various demand response strategies, FLAME acts as a virtual energy storage resource, thus increasing the roundtrip efficiency and capacity of the Sundial's coupled battery/load-based storage system. An open standard to support broader utilization of long-duration load shifting as a means to enable grid integration of distributed renewables is also proposed. The SunDial system is planned to be deployed in Massachusetts in 2017-2019 on the National Grid distribution system. This pape r presents its basic architecture, a simulation-based prototype and preliminary results based on actual loads from commercial buildings.