Power Electronics Grid Interface Streamlines the Transition to a More Modern Grid – pv Magazine USA
The PEGI platform under development at NREL demonstrates the potential to control and deploy future power electronics devices on future grids by submitting new concepts and technologies to the rigors of real-world operations.
The US power grid will move to renewable and distributed energies and will require major upgrades. Not only is the infrastructure obsolete, but with smart power electronics controlling solar and wind energy flowing into the grid, and energy storage systems, grid technology needs to be migrated from electromechanical to digital and made programmable. I have. Researchers at the National Institute of Renewable Energy (NREL) have developed a Power Electronics Grid Interface (PEGI) platform to support the control and deployment of future power electronics devices for energy systems.
PEGI is part of NREL Advanced research on the Integrated Energy System (ARIES) platform, A research site to prove the concept of advanced energy systems. With ARIES, PEGI is a power electronics product that includes everything from home appliances such as modern refrigerators and electric vehicles to inverter-based resources such as wind, solar, battery systems, and next-generation grid technologies. You can investigate the impact on various grids. It is revolutionizing medium and low voltage power systems.
As part of its research activities, NREL hosts 20 MW of wind, solar, hydrogen, vehicles, storage, and other resources, all of which are used to emulate events and configurations for various power systems. I can do it.
“This is an important moment for industry and grid planners to understand the technologies that make up the system and find solutions for specific needs. PEGI is an asset for partners to experiment in a realistic, risk-free environment. “That’s what Barry Mather, director of integrated device and system research at NREL, said.
PEGI can model grid scenarios on a megawatt scale, with grid stability such as grid forming inverter control, grid operation with a large amount of inverter-based resources, and interconnection of wind and solar power plants. The focus is on dealing with the problem.
Invention of grid scenario
At the NREL campus, power is sourced from the local power company and first passes through a controllable grid interface, allowing researchers to customize power conditions.With this interface, researchers can fail, power outage, or 100% renewable energy system.. Downline from the grid interface, PEGI equipment evaluates the response and interaction of the power electronics device under test.
NREL reports that PEGI provides users with a way to perform device operations on any power technology in any scenario. Overall, it provides a realistic environment where risks can be removed from future technologies.
PEGI provides answers to urgent questions. How can I integrate inverter-based power generation into different systems? This is achieved by allowing researchers to adjust their share of traditional or renewable resources and experience their impact at industry-related power levels.
“If this is not the case, many operators will soon be faced with questions about how to keep the system stable, as the mandatory renewable energy will increase the share of inverter-based resources. There is no single answer other than that all systems are different. PEGI’s special role is how the system will behave in future scenarios, and the future of renewable and traditional resources. It’s a very accurate indication of the combination, “Mother said.
Power electronics is a type of power generation that is radically different from the electromechanical machines of the past. The advantage of such power electronics is that engineers can program and access various controls. These controls are currently being considered as inverter-based resources by the Global Consortium.
Working PEGI
The Universal Interoperability of the Grid Forming Inverter (UNIFI) Consortium jointly led by NREL Takes up this topic by integrating more than 40 organizations from industry, academia, utilities, and government to share knowledge and remove risk from the control frontier that supports the grid. PEGI plays an important role in this effort by enabling collaborators to develop and demonstrate inverter control in many production environments. Among other projects, the UNIFI Consortium will use PEGI to validate specifications that guarantee interoperability requirements for grid-forming inverters from different manufacturers.
As an example of working PEGI, NREL has pioneered and proven grid formation controls in several applications. One is to support Maui, where the instantaneous share of renewable energy is leaning towards 100%. NREL created the tool. Multi-timescale integrated dynamic and scheduling model (MIDAS), Helps operators manage the scheduling and stability of renewable resources. After examining the baseline aspects of the tool, researchers will use PEGI to deploy the tool to scaled systems with the support of the DOE Solar Energy Technology Office. SAPPHIRE project.. PEGI, in combination with other generations, represents the upcoming 300 MW of renewable energy assets and shows that MIDAS can notify operations when renewables occupy a larger share of the generational composition.
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