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Heila Microgrid Controller Validation Using CUBE: Cooperative Research and Development Final Report, CRADA Number CRD-17-663
This CRADA facilitates validation of the Heila IQ controller (microgrid controller) using NREL's Consolidated Utility Base Energy (CUBE) hardware platform. The CUBE microgrid platform includes power electronics and controls to integrate PV, battery, and diesel generator assets to ...
Shirazi, M. and Mather, B. NLR
Jul 31, 2018
Distributed Cooperative Control of Hybrid AC/DC Microgrid
This paper presents a distributed cooperative control-based power management algorithm for a hybrid AC/DC microgrid. The proposed algorithm for a hybrid microgrid system controls the power flow through the interface converter between the AC and DC microgrids. This algorithm allows...
Mahmud, R. and Nejadpak, A. NLR
Dec 31, 2018
2 Resources
2 Resources
Use of Grid-Forming Medium-Voltage Power Electronics Hub in a Microgrid Setting
This paper presents the application of a new design of a multiport, modular, medium-voltage power electronics hub (M3PE-HUB) in a microgrid setting. The M3PE-HUB system was modeled in a digital real-time simulator (DRTS) and integrated into the Banshee microgrid test system. This ...
Xie, F. et al NLR
Dec 31, 2022
An Innovative Energy Management System for Microgrids with Multiple Grid-Forming Inverters
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 th...
Comden, J. and Wang, J. NLR
Dec 31, 2023
5G Securely Energized and Resilient: Task 2 and 3 Progress Report
5G Securely Energized and Resilient (5G-SER) is a project funded by US DOD OUSD RandE in which NREL (NREL) developed, implement, and tested a wireless 5G architecture integrated with power systems components to perform research on its capabilities to provide low-latency, security,...
Rivera, J. et al NLR
Nov 30, 2023
Autonomous Microgrid Restoration Using Grid-Forming Inverters and Smart Circuit Breakers
The proliferation of distributed inverter-based resources (IBRs) raises the questions if these IBRs can be used to blackstart microgrids and distribution feeders after major outages. In this paper, we propose and evaluate an autonomous microgrid restoration concept using grid-for...
Banerjee, A. et al Siemens Technology
Dec 31, 2021
Design of a Microgrid Transition Controller II: System Recovery Under Abnormal Conditions
This paper presents a microgrid transition controller for managing emergency operation when the microgrid experiences a system blackout caused by an internal or external fault. The developed transition controller consists of various application function blocks, including normal op...
Wang, J. et al NLR
Dec 31, 2017
Grid Application and Controls Development for Medium-Voltage SiC-Based Grid Interconnects: Preprint
In this paper, the grid-interconnection requirements of directly connected medium voltage (MV) SiC-based converters are studied and the necessary control implementations are detailed. These power electronic converters use the interconnection standard IEEE 1547-2018, but can also h...
Singh, A. et al NLR
Sep 30, 2020
Advanced Distributed Wind Turbine Controls Series
Documents and analyses that detail control strategies for distributed wind to provide services beyond energy. Using a reference campus model, the resources cover isolated-grid operation, fault-ride-through in grid-connected deployments, and support for microgrid transitions and bl...
Anderson, B. et al NLR
Dec 31, 2021
4 Resources
4 Resources
Design of a State Machine for Smooth Microgrid Transition Operation
A state machine is proposed in the energy management system (EMS) of a microgrid as the solution for smooth microgrid's transition operation. This state machine includes six 'states' that cover all the operating modes during the microgrid's transition operation: two basic modes (g...
Wang, J. et al NLR
Jul 02, 2018
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