Unleashing the Frequency: Multi-Megawatt Demonstration of 100% Renewable Power Systems with Decentralized Communication-Less Control Scheme

Technical Report · Thu Sep 01 04:00:00 EDT 2022

DOI:https://doi.org/10.2172/1891206· OSTI ID:1891206

Koralewicz, Przemyslaw ^[1]; Mendiola, Emanuel ^[1]; Wallen, Robb ^[1]; Gevorgian, Vahan ^[1]; Laird, Daniel ^[1]

---

1. National Renewable Energy Lab. (NREL), Golden, CO (United States)

Power systems, which range in size from small microgrids to island systems to large regional grids, are typically managed by a central controller that requires complex communication methods and can be unreliable and pose cyber security risks in certain applications, especially when controlling a larger number of nodes. We propose an inherently robust, scalable method of integration using multiple energy storage systems and distributed energy resources, which does not require any means of dedicated communication. This method moves beyond the paradigm of controlling grid frequency at a fixed value (e.g., 60 Hz), instead allowing the frequency to fluctuate within certain limits (e.g., 59.6-60.4 Hz). With a greater operating range, the frequency can carry necessary information from energy storage systems to highly variable distributed energy resources like photovoltaics, wind, hydro, etc.

• Research Organization: National Renewable Energy Laboratory (NREL), Golden, CO (United States)
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EERE); USDOE Laboratory Directed Research and Development (LDRD) Program
• DOE Contract Number: AC36-08GO28308
• OSTI ID: 1891206
• Report Number(s): NREL/TP-5000-80742; MainId:77526; UUID:c52fcbb8-8e4a-4562-96b1-3618ba50d06e; MainAdminID:67616
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
Communication-Less
Decentralized
Droop
Grid-Forming
Inverter
Microgrid