Understanding the Origin of SSR in Series-Compensated DFIG-Based Wind Farms: Analysis Techniques and Tuning
This paper is dedicated to presenting control-tuning methodologies for the rotor-side converter (RSC) and grid-side converter (GSC) of series-compensated DFIG-based wind farms (WF) and to determining the origin of subsynchronous resonance (SSR). Unlike conventional approaches to re-tuning controller...
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2021-01-01
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author | Roberto Moreno-Sanchez C. Alberto Nunez-Gutierrez Nancy Visairo-Cruz Julio Hernandez-Ramirez Juan Segundo-Ramirez |
author_facet | Roberto Moreno-Sanchez C. Alberto Nunez-Gutierrez Nancy Visairo-Cruz Julio Hernandez-Ramirez Juan Segundo-Ramirez |
author_sort | Roberto Moreno-Sanchez |
collection | DOAJ |
description | This paper is dedicated to presenting control-tuning methodologies for the rotor-side converter (RSC) and grid-side converter (GSC) of series-compensated DFIG-based wind farms (WF) and to determining the origin of subsynchronous resonance (SSR). Unlike conventional approaches to re-tuning controller gains to achieve desirable performance, these methodologies only consider the mathematical models of the states variables to be controlled. A PI cascade topology is used to control the RSC and GSC. An inner loop is required for current control and an outer loop for voltage control. Special consideration is taken for tuning the RSC because this converter is coupled with the mechanical variables as mechanical rotor speed of the DFIG. Compared with standard tuning, a better system behavior during a resonance condition is achieved with the proposed tuning methodology. Regarding the analysis of the SSR origin, the modal impedance (MI) technique is used as a tool to study SSR issues; its advantages compared to the driving point impedance technique are highlighted. In this context, the small-signal-stability (SSS) analysis is performed to evaluate the overall system. With the combination of MI and SSS, the phenomena of induction generator effect, torque interaction, and torque amplification are analyzed. As a result, the modes involved in the SSR phenomenon are identified and a discrimination procedure is described to determine the origin of the SSR. |
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institution | Kabale University |
issn | 2169-3536 |
language | English |
publishDate | 2021-01-01 |
publisher | IEEE |
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series | IEEE Access |
spelling | doaj-art-98911502c44a4212a7c730a7767279642025-01-09T00:00:46ZengIEEEIEEE Access2169-35362021-01-01911766011767210.1109/ACCESS.2021.31041719511415Understanding the Origin of SSR in Series-Compensated DFIG-Based Wind Farms: Analysis Techniques and TuningRoberto Moreno-Sanchez0https://orcid.org/0000-0002-3946-7711C. Alberto Nunez-Gutierrez1https://orcid.org/0000-0003-2451-421XNancy Visairo-Cruz2https://orcid.org/0000-0003-1290-0586Julio Hernandez-Ramirez3https://orcid.org/0000-0002-0954-9628Juan Segundo-Ramirez4https://orcid.org/0000-0001-6950-4133CIEP, Facultad de Ingeniería, Universidad Autónoma de San Luis Potosí, San Luis Potosí, CIEP, MexicoCIEP, Facultad de Ingeniería, Universidad Autónoma de San Luis Potosí, San Luis Potosí, CIEP, MexicoCIEP, Facultad de Ingeniería, Universidad Autónoma de San Luis Potosí, San Luis Potosí, CIEP, MexicoCIEP, Facultad de Ingeniería, Universidad Autónoma de San Luis Potosí, San Luis Potosí, CIEP, MexicoCIEP, Facultad de Ingeniería, Universidad Autónoma de San Luis Potosí, San Luis Potosí, CIEP, MexicoThis paper is dedicated to presenting control-tuning methodologies for the rotor-side converter (RSC) and grid-side converter (GSC) of series-compensated DFIG-based wind farms (WF) and to determining the origin of subsynchronous resonance (SSR). Unlike conventional approaches to re-tuning controller gains to achieve desirable performance, these methodologies only consider the mathematical models of the states variables to be controlled. A PI cascade topology is used to control the RSC and GSC. An inner loop is required for current control and an outer loop for voltage control. Special consideration is taken for tuning the RSC because this converter is coupled with the mechanical variables as mechanical rotor speed of the DFIG. Compared with standard tuning, a better system behavior during a resonance condition is achieved with the proposed tuning methodology. Regarding the analysis of the SSR origin, the modal impedance (MI) technique is used as a tool to study SSR issues; its advantages compared to the driving point impedance technique are highlighted. In this context, the small-signal-stability (SSS) analysis is performed to evaluate the overall system. With the combination of MI and SSS, the phenomena of induction generator effect, torque interaction, and torque amplification are analyzed. As a result, the modes involved in the SSR phenomenon are identified and a discrimination procedure is described to determine the origin of the SSR.https://ieeexplore.ieee.org/document/9511415/Doubly fed induction generator (DFIG)subsynchronous resonance (SSR)eigenvalue analysisoscillatory stabilitypower converterwind farm |
spellingShingle | Roberto Moreno-Sanchez C. Alberto Nunez-Gutierrez Nancy Visairo-Cruz Julio Hernandez-Ramirez Juan Segundo-Ramirez Understanding the Origin of SSR in Series-Compensated DFIG-Based Wind Farms: Analysis Techniques and Tuning IEEE Access Doubly fed induction generator (DFIG) subsynchronous resonance (SSR) eigenvalue analysis oscillatory stability power converter wind farm |
title | Understanding the Origin of SSR in Series-Compensated DFIG-Based Wind Farms: Analysis Techniques and Tuning |
title_full | Understanding the Origin of SSR in Series-Compensated DFIG-Based Wind Farms: Analysis Techniques and Tuning |
title_fullStr | Understanding the Origin of SSR in Series-Compensated DFIG-Based Wind Farms: Analysis Techniques and Tuning |
title_full_unstemmed | Understanding the Origin of SSR in Series-Compensated DFIG-Based Wind Farms: Analysis Techniques and Tuning |
title_short | Understanding the Origin of SSR in Series-Compensated DFIG-Based Wind Farms: Analysis Techniques and Tuning |
title_sort | understanding the origin of ssr in series compensated dfig based wind farms analysis techniques and tuning |
topic | Doubly fed induction generator (DFIG) subsynchronous resonance (SSR) eigenvalue analysis oscillatory stability power converter wind farm |
url | https://ieeexplore.ieee.org/document/9511415/ |
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