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Real-World 20-Hz IBR Subsynchronous Oscillations: Signatures and Mechanism Analysis

Journal Article · · IEEE Transactions on Energy Conversion
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This article provides analyses of subsynchronous oscillations associated with solar photovoltaics (PVs) observed in real world. All have oscillation frequencies at approximately 20 Hz in voltage and current magnitudes. On the other hand, in phase voltage and current, the oscillations show very different signatures. Through constructing simplified linear models and conducting sensitivity analysis, we are able to associate dynamic phenomena with the underlying mechanism and speculate the possible causes of the 20-Hz oscillations. The analysis results have all been validated via simulation results from electromagnetic transient (EMT) test beds constructed in MATLAB/Simscape.

Research Organization:
National Renewable Energy Lab. (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:
1924450
Report Number(s):
NREL/JA-5D00-82904; MainId:83677; UUID:d920e999-f910-4bca-8503-09422a548442; MainAdminID:68732
Journal Information:
IEEE Transactions on Energy Conversion, Vol. 37, Issue 4
Country of Publication:
United States
Language:
English

References (15)

Grid-Synchronization Stability of Converter-Based Resources—An Overview journal January 2020
Modeling Phase-Locked Loop-Based Synchronization in Grid-Interfaced Converters journal March 2020
Subcycle Overvoltage Dynamics in Solar PVs journal June 2021
Is strong modal resonance a precursor to power system oscillations?
  • Dobson, I.; Zhang, J.; Greene, S.
  • IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications, Vol. 48, Issue 3 https://doi.org/10.1109/81.915389
journal March 2001
Impact of PLL Frequency Limiter on Synchronization Stability of Grid Feeding Converter journal May 2022
A Three-Phase Frequency-Adaptive Phase-Locked Loop for Independent Single-Phase Operation journal December 2014
Input-Admittance Calculation and Shaping for Controlled Voltage-Source Converters journal December 2007
Tuning Method of a Grid-Following Converter for the Extremely-Weak-Grid Connection journal July 2022
Unstable Operation of Photovoltaic Inverter From Field Experiences journal April 2018
Real-World Subsynchronous Oscillation Events in Power Grids With High Penetrations of Inverter-Based Resources journal January 2023
Unified Impedance Model of Grid-Connected Voltage-Source Converters journal February 2018
Modeling of VSC Connected to Weak Grid for Stability Analysis of DC-Link Voltage Control journal December 2015
Definition and Classification of Power System Stability – Revisited & Extended journal July 2021
Sub- and Super-Synchronous Interactions Between STATCOMs and Weak AC/DC Transmissions With Series Compensations journal September 2018
Modeling Type-4 Wind in Weak Grids journal April 2019

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Related Subjects

POWER TRANSMISSION AND DISTRIBUTION
SOLAR ENERGY
inverter-based resources
subsynchronous oscillations
weak grid