Electromagnetic Transient Simulation of Large-Scale Inverter-Based Resources With High-Granularity

The power grid is undergoing a significant transformation with the rapid increase in inverter-based resources (IBRs), including large-scale photovoltaic (PV) plants. Ensuring reliable and resilient grid operation in this new paradigm necessitates high-granularity electromagnetic transient (EMT) mode...

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Bibliographic Details
Published in:IEEE open access journal of power and energy Vol. 12; pp. 664 - 677
Main Authors: Choi, Jongchan, Xue, Yaosuo, Wang, Hong
Format: Journal Article
Language:English
Published: New York IEEE 01.01.2025
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects:
Accuracy
Control systems
DC-DC power converters
Electromagnetic transients simulation
Genetic transformation
Heuristic algorithms
Inverter-based resource
inverter-based resources
Inverters
large-scale power electronics systems
Mathematical models
Modularity
Numerical models
numerical simulation algorithm
Numerical stability
Photovoltaic cells
photovoltaic power plant
Photovoltaics
Power system dynamics
power system simulation
Representations
Simulation
simulation algorithm
Switches
Transformers
Transient analysis
ISSN:2687-7910, 2687-7910, 2644-1314
Online Access:Get full text
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Summary:The power grid is undergoing a significant transformation with the rapid increase in inverter-based resources (IBRs), including large-scale photovoltaic (PV) plants. Ensuring reliable and resilient grid operation in this new paradigm necessitates high-granularity electromagnetic transient (EMT) modeling that accurately captures the behavior of individual inverters and their interactions within IBR plants. Central to this approach is the detailed representation of both the IBR plant's collector system and the dynamics of individual inverters. To achieve this, a high-granularity EMT model of a large-scale PV plant has been developed using advanced simulation algorithms, including matrix splitting and the Schur complement. These proposed techniques significantly enhance simulation speed, numerical stability, and accuracy while improving the modularity and efficiency of the collector system's representation. The effectiveness of the proposed methods is validated through simulations of a representative large-scale PV plant consisting of 125 individual PV inverters, 25 IBR unit transformers, and a 52-bus collector system.
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ISSN:2687-7910
2687-7910
2644-1314
DOI:10.1109/OAJPE.2025.3615786