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Novel Power-Hardware-in-the-Loop Interface Method for Grid-Forming Inverter Systems

Conference ·
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Power-hardware-in-the-loop (PHIL) simulations of grid-forming (GFM) inverter systems facilitate the testing of drastic scenarios, such as on-grid to off-grid transitions and islanded microgrid operations without a stiff grid. To the authors’ best knowledge, most studies in the literature focus on PHIL simulations for grid-following inverter systems. Only a few studies focus on GFM inverters, and those are challenging and problematic, especially for high-power applications. This article proposes a novel PHIL simulation platform that enables interfacing high-power GFM inverter systems. The paper proposes the concept of a virtual GFM inverter as a part of the proposed PHIL interface. This addition of a virtual GFM inverter in the PHIL interface expands the conventional ideal transformer model (ITM) method and enables it to overcome the issues of instability of existing ITM methods. In the validation stage, a PHIL experiment is conducted on a three-phase, 480-V, 125-kVA GFM inverter system with the proposed interfacing method. The results corroborate that the proposed PHIL simulation method performs well and is stable for GFM inverter systems.

Research Organization:
National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Sponsoring Organization:
USDOE Advanced Research Projects Agency - Energy (ARPA-E)
DOE Contract Number:
AC36-08GO28308
OSTI ID:
1922191
Report Number(s):
NREL/CP-5D00-85137; MainId:85910; UUID:786de773-2931-424a-8e5d-56e67cb9177b; MainAdminID:68561
Resource Relation:
Conference: Presented at the 48th Annual Conference of the IEEE Industrial Electronics Society (IECON), 17-20 October 2022, Brussels, Belgium; Related Information: 82885
Country of Publication:
United States
Language:
English

References (13)

Simulation of Grid-Forming Inverters Dynamic Models using a Power Hardware-in-the-Loop Testbed conference June 2019
Method to Interface Grid-Forming Inverters into Power Hardware in the Loop Setups conference June 2020
Characteristics and Design of Power Hardware-in-the-Loop Simulations for Electrical Power Systems journal January 2016
Optimal Power Hardware-in-the-Loop Interfacing: Applying Modern Control for Design and Verification of High-Accuracy Interfaces journal November 2021
Voltage-Sourced Converters in Power Systems: Modeling, Control, and Applications book January 2010
Control of parallel connected inverters in standalone AC supply systems journal January 1993
A Wireless Controller to Enhance Dynamic Performance of Parallel Inverters in Distributed Generation Systems journal September 2004
-Synthesis-Based Generalized Robust Framework for Grid-Following and Grid-Forming Inverters journal March 2023
Development of Interface Model and Design of Compensator to Overcome Delay Response in a PHIL Setup for Evaluating a Grid-Connected Power Electronic DUT journal May 2022
Stability Analysis of Power Hardware-in-the-Loop Architecture With Solar Inverter journal May 2021
Evaluation of Horizon of Viability Optimization Engine for Sustained Power to Critical Infrastructure conference March 2022
Evaluation of Optimal Net Load Management in Microgrids Using Hardware-in-the-Loop Simulation conference April 2022
Emulation of Complex Grid Scenarios by using Power Hardware In the Loop (PHIL) Techniques conference October 2021

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Related Subjects

POWER TRANSMISSION AND DISTRIBUTION
droop control
grid forming inverter
ITM-based interface method
power hardware-in-the-loop simulation