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Interoperable, Inverter - Based Distributed Energy Resources Enable 100% Renewable and Resilient Utility Microgrids

Conference ·
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As microgrids transition away from use of conventional generating resources and increasingly rely on renewable resources towards decarbonization goals, it is crucial to evaluate the capability inverter-based resources to provide microgrid stability and resilience. Particularly, microgrids with a high contribution of intermittent solar photo voltaic generation and higher load variability present unique challenges requiring fast voltage and frequency support. At the San Diego Gas & Electric Company(R) (SDG&E(R)) Borrego Springs Microgrid, a battery inverter was upgraded with grid-forming (GFM) capability to serve as island leader, transitioning responsibility away from diesel generators. An interoperable microgrid control scheme was developed, coordinating GFM and grid-following (GFL) inverters. Hardware-in-the-loop (HIL) simulations using relevant power and controller HIL interfaces between real-time simulators and field equipment are being conducted to de-risk field deployment.

Research Organization:
National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office
DOE Contract Number:
AC36-08GO28308
OSTI ID:
2558970
Report Number(s):
NREL/CP-5D00-94334; MainId:96116; UUID:025f81aa-dea0-481d-9466-405835b03514; MainAdminId:76645
Country of Publication:
United States
Language:
English

References (3)

Transient Stability Study of a Real-World Microgrid with 100% Renewables conference October 2022
Site-Specific Evaluation of Microgrid Controller Using Controller and Power-Hardware-in-the-Loop conference October 2019
Power-Hardware-in-the-Loop Interfaces for Inverter-Based Microgrid Experiments Including Transitions conference October 2023

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Related Subjects

ENERGY STORAGE
POWER TRANSMISSION AND DISTRIBUTION
battery energy storage
black-start
frequency and voltage support
grid-forming inverter
hardware-in-the-loop
islanding
microgrids
real-time automation control
ultracapacitors
utility-scale DERs