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An Innovative Energy Management System for Microgrids with Multiple Grid-Forming Inverters

Conference ·
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As increasingly more grid-forming (GFM) inverter-based resources replace traditional fossil-fueled synchronous generators as the GFM sources in microgrids, the existing microgrid energy management systems (EMS) need to be updated to control and coordinate multiple GFM inverters that consider system control objectives under different microgrid connection states. For each state, we formulate an optimization problem and apply a real-time feedback-based control algorithm; altogether, the control algorithms seamlessly connect the states into a generic microgrid EMS that controls the nodal voltages and frequencies, becomes a virtual power plant (VPP) when connected to the main grid, and coordinates power sharing responsibility among GFM sources when islanded. We showcase the EMS on a real-world simulation of a microgrid under the different states to demonstrate its operational effectiveness.
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:
2477031
Report Number(s):
NREL/CP-5D00-92003; MainId:93781; UUID:249bd314-1a43-4e5b-867b-388c50d7f9bf; MainAdminId:74200
Country of Publication:
United States
Language:
English

References (11)

Dynamic Energy Management System for a Smart Microgrid journal August 2016
Multiagent-based transactive energy framework for distribution systems with smart microgrids journal October 2017
Multiagent-Based Hybrid Energy Management System for Microgrids journal January 2014
Study of Inverter Control Strategies on the Stability of Microgrids Toward 100% Renewable Penetration conference October 2022
Robust Energy Management System for a Microgrid Based on a Fuzzy Prediction Interval Model journal May 2016
Microgrids Energy Management Using Robust Convex Programming journal July 2019
Experimental Demonstration of a Tiered Power Management System for Economic Operation of Grid-Tied Microgrids journal October 2014
Design of an advanced energy management system for microgrid control using a state machine journal October 2018
Energy and Frequency Hierarchical Management System Using Information Gap Decision Theory for Islanded Microgrids journal October 2018
Real-Time Feedback-Based Optimization of Distribution Grids: A Unified Approach journal September 2019
Linear power-flow models in multiphase distribution networks conference September 2017

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Related Subjects

POWER TRANSMISSION AND DISTRIBUTION
energy management systems
grid forming
microgrids
optimization
reactive power
real-time systems
synchronous generators
testing
virtual power plants
voltage control