Power-Smoothing Scheme of a DFIG Using the Adaptive Gain Depending on the Rotor Speed and Frequency Deviation

Lee, Hyewon; Hwang, Min; Muljadi, Eduard; Sorensen, Poul; Kang, Yong Cheol

doi:10.3390/en10040555

Title: Power-Smoothing Scheme of a DFIG Using the Adaptive Gain Depending on the Rotor Speed and Frequency Deviation

Abstract

In an electric power grid that has a high penetration level of wind, the power fluctuation of a large-scale wind power plant (WPP) caused by varying wind speeds deteriorates the system frequency regulation. This paper proposes a power-smoothing scheme of a doubly-fed induction generator (DFIG) that significantly mitigates the system frequency fluctuation while preventing over-deceleration of the rotor speed. The proposed scheme employs an additional control loop relying on the system frequency deviation that operates in combination with the maximum power point tracking control loop. To improve the power-smoothing capability while preventing over-deceleration of the rotor speed, the gain of the additional loop is modified with the rotor speed and frequency deviation. The gain is set to be high if the rotor speed and/or frequency deviation is large. In conclusion, the simulation results based on the IEEE 14-bus system clearly demonstrate that the proposed scheme significantly lessens the output power fluctuation of a WPP under various scenarios by modifying the gain with the rotor speed and frequency deviation, and thereby it can regulate the frequency deviation within a narrow range.

Authors:

Lee, Hyewon ^[1]; Hwang, Min ^[1]; Muljadi, Eduard ^[2]; Sorensen, Poul ^[3];

^[1]

Chonbuk National Univ., Chonju (Korea)
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Technical Univ. of Denmark, Roskilde (Denmark)

Publication Date:: Tue Apr 18 00:00:00 EDT 2017

Research Org.:: National Renewable Energy Lab. (NREL), Golden, CO (United States)

Sponsoring Org.:: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Wind and Water Technologies Office (EE-4W)

OSTI Identifier:: 1358686

Report Number(s):: NREL/JA-5D00-68324
Journal ID: ISSN 1996-1073; ENERGA

Grant/Contract Number:: AC36-08GO28308

Resource Type:: Accepted Manuscript

Journal Name:: Energies (Basel)

Additional Journal Information:: Journal Name: Energies (Basel); Journal Volume: 10; Journal Issue: 4; Journal ID: ISSN 1996-1073

Publisher:: MDPI AG

Country of Publication:: United States

Language:: English

Subject:: 17 WIND ENERGY; 24 POWER TRANSMISSION AND DISTRIBUTION; power smoothing; doubly-fed induction generator; frequency regulation; adaptive gain; rotor speed; frequency deviation

Citation Formats


                    Lee, Hyewon, Hwang, Min, Muljadi, Eduard, Sorensen, Poul, and Kang, Yong Cheol. Power-Smoothing Scheme of a DFIG Using the Adaptive Gain Depending on the Rotor Speed and Frequency Deviation.  United States: N. p., 2017. 
Web.  doi:10.3390/en10040555.

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                    Lee, Hyewon, Hwang, Min, Muljadi, Eduard, Sorensen, Poul, & Kang, Yong Cheol. Power-Smoothing Scheme of a DFIG Using the Adaptive Gain Depending on the Rotor Speed and Frequency Deviation.  United States.  https://doi.org/10.3390/en10040555

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                    Lee, Hyewon, Hwang, Min, Muljadi, Eduard, Sorensen, Poul, and Kang, Yong Cheol. Tue .  
"Power-Smoothing Scheme of a DFIG Using the Adaptive Gain Depending on the Rotor Speed and Frequency Deviation".  United States.  https://doi.org/10.3390/en10040555.  https://www.osti.gov/servlets/purl/1358686.

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@article{osti_1358686,

  title        = {Power-Smoothing Scheme of a DFIG Using the Adaptive Gain Depending on the Rotor Speed and Frequency Deviation},

  author       = {Lee, Hyewon and Hwang, Min and Muljadi, Eduard and Sorensen, Poul and Kang, Yong Cheol},

  abstractNote = {In an electric power grid that has a high penetration level of wind, the power fluctuation of a large-scale wind power plant (WPP) caused by varying wind speeds deteriorates the system frequency regulation. This paper proposes a power-smoothing scheme of a doubly-fed induction generator (DFIG) that significantly mitigates the system frequency fluctuation while preventing over-deceleration of the rotor speed. The proposed scheme employs an additional control loop relying on the system frequency deviation that operates in combination with the maximum power point tracking control loop. To improve the power-smoothing capability while preventing over-deceleration of the rotor speed, the gain of the additional loop is modified with the rotor speed and frequency deviation. The gain is set to be high if the rotor speed and/or frequency deviation is large. In conclusion, the simulation results based on the IEEE 14-bus system clearly demonstrate that the proposed scheme significantly lessens the output power fluctuation of a WPP under various scenarios by modifying the gain with the rotor speed and frequency deviation, and thereby it can regulate the frequency deviation within a narrow range.},

  doi          = {10.3390/en10040555},

  journal      = {Energies (Basel)},

  number       = 4,

  volume       = 10,

  place        = {United States},

  year         = {Tue Apr 18 00:00:00 EDT 2017},

  month        = {Tue Apr 18 00:00:00 EDT 2017}

}

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Works referenced in this record:

Frequency Controlling Wind Power Modeling of Control Strategies
journal, October 2013

Wang-Hansen, Mats; Josefsson, Robert; Mehmedovic, Haris
IEEE Transactions on Sustainable Energy, Vol. 4, Issue 4
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System operation with high wind penetration
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Eriksen, P. B.; Ackermann, T.; Abildgaard, H.
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Lalor, G.; Mullane, A.; O'Malley, M.
IEEE Transactions on Power Systems, Vol. 20, Issue 4
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Overview of Multi-MW Wind Turbines and Wind Parks
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Liserre, Marco; Cardenas, Roberto; Molinas, Marta
IEEE Transactions on Industrial Electronics, Vol. 58, Issue 4
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Connection requirements for wind farms: A survey on technical requierements and regulation
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de Alegría, Iñigo Martinez; Andreu, Jon; Martín, José Luis
Renewable and Sustainable Energy Reviews, Vol. 11, Issue 8
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Frequency Regulation Contribution Through Variable-Speed Wind Energy Conversion Systems
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Mauricio, J. M.; Marano, A.; Gomez-Exposito, A.
IEEE Transactions on Power Systems, Vol. 24, Issue 1
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Battery Energy Storage Station (BESS)-Based Smoothing Control of Photovoltaic (PV) and Wind Power Generation Fluctuations
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Li, Xiangjun; Hui, Dong; Lai, Xiaokang
IEEE Transactions on Sustainable Energy, Vol. 4, Issue 2
DOI: 10.1109/TSTE.2013.2247428

Sensorless Maximum Power Point Tracking of Wind by DFIG Using Rotor Position Phase Lock Loop (PLL)
journal, April 2009

Baike Shen, ; Mwinyiwiwa, B.
IEEE Transactions on Power Electronics, Vol. 24, Issue 4
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Dynamic Modeling and Control of DFIG-Based Wind Turbines Under Unbalanced Network Conditions
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Xu, Lie; Wang, Yi
IEEE Transactions on Power Systems, Vol. 22, Issue 1
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Comparison of the Response of Doubly Fed and Fixed-Speed Induction Generator Wind Turbines to Changes in Network Frequency
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Ekanayake, J.; Jenkins, N.
IEEE Transactions on Energy Conversion, Vol. 19, Issue 4
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Control of a Flywheel Energy Storage System for Power Smoothing in Wind Power Plants
journal, March 2014

Diaz-Gonzalez, Francisco; Bianchi, Fernando D.; Sumper, Andreas
IEEE Transactions on Energy Conversion, Vol. 29, Issue 1
DOI: 10.1109/TEC.2013.2292495

A Power Smoothing System Based on Supercapacitors for Renewable Distributed Generation
journal, January 2015

Pegueroles-Queralt, Jordi; Bianchi, Fernando D.; Gomis-Bellmunt, Oriol
IEEE Transactions on Industrial Electronics, Vol. 62, Issue 1
DOI: 10.1109/TIE.2014.2327554

High Wind Power Penetration in Isolated Power Systems—Assessment of Wind Inertial and Primary Frequency Responses
journal, August 2013

Wang, Ye; Delille, Gauthier; Bayem, Herman
IEEE Transactions on Power Systems, Vol. 28, Issue 3
DOI: 10.1109/TPWRS.2013.2240466

Frequency Control in Autonomous Power Systems With High Wind Power Penetration
journal, April 2012

Margaris, Ioannis D.; Papathanassiou, Stavros A.; Hatziargyriou, Nikos D.
IEEE Transactions on Sustainable Energy, Vol. 3, Issue 2
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Works referencing / citing this record:

Proposals for Enhancing Frequency Control in Weak and Isolated Power Systems: Application to the Wind-Diesel Power System of San Cristobal Island-Ecuador
journal, April 2018

Ochoa, Danny; Martinez, Sergio
Energies, Vol. 11, Issue 4
DOI: 10.3390/en11040910

Incorporating State-of-Charge Balancing into the Control of Energy Storage Systems for Smoothing Renewable Intermittency
journal, March 2019

Shim, Jae; Kim, Heejin; Hur, Kyeon
Energies, Vol. 12, Issue 7
DOI: 10.3390/en12071190

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Title: Power-Smoothing Scheme of a DFIG Using the Adaptive Gain Depending on the Rotor Speed and Frequency Deviation

Abstract

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