Study on LVRT of DFIG wind power system based on crowbar protection circuit

Renxiao Wang; Huihui Song; Li Han; Luocheng Yan; Bin Wang; Pu Zhao

doi:10.1109/SCEMS.2018.8624855

Study on LVRT of DFIG wind power system based on crowbar protection circuit

Renxiao Wang
, Huihui Song^*
, Li Han
, Luocheng Yan
, Bin Wang
, Pu Zhao

^*Corresponding author for this work

Chongqing University
School of New Energy, Harbin Institute of Technology Weihai

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

5 Scopus citations

Abstract

The wind power system based on the Doubly-Fed Induction Generator (DFIG) is one of the most popular wind power systems considering the economy and performance. However, DFIG is extremely sensitive to the grid fluctuations or faults since its stator side connected directly to the grid. When the grid voltage drops heavily, hardware protection must be required to ensure the system ride through the low voltage stage. The Crowbar Protection Circuit (CPC) is most popularly used. This paper studies the transient process of the system when the grid voltage drops. And then, the crowbar resistance and the best CPC duration are optimized by the analytic expression of transient current on the rotor side based on the standard of Low Voltage Ride Through (LVRT). The results show that the optimal crowbar resistance and the right time to remove the CPC are relevant to the rotor current transient component and the time constant. Finally, the feasibility by using grid-side converter as a STATCOM to support the reactive power of the grid during the stage of crowbar protection is discussed. The results are simulated by MATLAB/Simulink and verifies the correctness of the theory analysis.

Original language	English
Title of host publication	1st IEEE Student Conference on Electric Machines and Systems, SCEMS 2018
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781538673485
DOIs	https://doi.org/10.1109/SCEMS.2018.8624855
State	Published - 23 Jan 2019
Externally published	Yes
Event	1st IEEE Student Conference on Electric Machines and Systems, SCEMS 2018 - HuZhou, China Duration: 14 Dec 2018 → 16 Dec 2018

Publication series

Name	1st IEEE Student Conference on Electric Machines and Systems, SCEMS 2018

Conference

Conference	1st IEEE Student Conference on Electric Machines and Systems, SCEMS 2018
Country/Territory	China
City	HuZhou
Period	14/12/18 → 16/12/18

Keywords

DFIG
STATCOM
crowbar protection
low voltage ride through
wind power system

Access to Document

10.1109/SCEMS.2018.8624855

Cite this

Wang, R., Song, H., Han, L., Yan, L., Wang, B., & Zhao, P. (2019). Study on LVRT of DFIG wind power system based on crowbar protection circuit. In 1st IEEE Student Conference on Electric Machines and Systems, SCEMS 2018 Article 8624855 (1st IEEE Student Conference on Electric Machines and Systems, SCEMS 2018). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/SCEMS.2018.8624855

@inproceedings{93ad02b7442a4d8988abd58826144899,

title = "Study on LVRT of DFIG wind power system based on crowbar protection circuit",

abstract = "The wind power system based on the Doubly-Fed Induction Generator (DFIG) is one of the most popular wind power systems considering the economy and performance. However, DFIG is extremely sensitive to the grid fluctuations or faults since its stator side connected directly to the grid. When the grid voltage drops heavily, hardware protection must be required to ensure the system ride through the low voltage stage. The Crowbar Protection Circuit (CPC) is most popularly used. This paper studies the transient process of the system when the grid voltage drops. And then, the crowbar resistance and the best CPC duration are optimized by the analytic expression of transient current on the rotor side based on the standard of Low Voltage Ride Through (LVRT). The results show that the optimal crowbar resistance and the right time to remove the CPC are relevant to the rotor current transient component and the time constant. Finally, the feasibility by using grid-side converter as a STATCOM to support the reactive power of the grid during the stage of crowbar protection is discussed. The results are simulated by MATLAB/Simulink and verifies the correctness of the theory analysis.",

keywords = "DFIG, STATCOM, crowbar protection, low voltage ride through, wind power system",

author = "Renxiao Wang and Huihui Song and Li Han and Luocheng Yan and Bin Wang and Pu Zhao",

note = "Publisher Copyright: {\textcopyright} 2018 IEEE.; 1st IEEE Student Conference on Electric Machines and Systems, SCEMS 2018 ; Conference date: 14-12-2018 Through 16-12-2018",

year = "2019",

month = jan,

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doi = "10.1109/SCEMS.2018.8624855",

language = "英语",

series = "1st IEEE Student Conference on Electric Machines and Systems, SCEMS 2018",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

booktitle = "1st IEEE Student Conference on Electric Machines and Systems, SCEMS 2018",

address = "美国",

}

Wang, R, Song, H, Han, L, Yan, L, Wang, B & Zhao, P 2019, Study on LVRT of DFIG wind power system based on crowbar protection circuit. in 1st IEEE Student Conference on Electric Machines and Systems, SCEMS 2018., 8624855, 1st IEEE Student Conference on Electric Machines and Systems, SCEMS 2018, Institute of Electrical and Electronics Engineers Inc., 1st IEEE Student Conference on Electric Machines and Systems, SCEMS 2018, HuZhou, China, 14/12/18. https://doi.org/10.1109/SCEMS.2018.8624855

Study on LVRT of DFIG wind power system based on crowbar protection circuit. / Wang, Renxiao; Song, Huihui; Han, Li et al.
1st IEEE Student Conference on Electric Machines and Systems, SCEMS 2018. Institute of Electrical and Electronics Engineers Inc., 2019. 8624855 (1st IEEE Student Conference on Electric Machines and Systems, SCEMS 2018).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Study on LVRT of DFIG wind power system based on crowbar protection circuit

AU - Wang, Renxiao

AU - Song, Huihui

AU - Han, Li

AU - Yan, Luocheng

AU - Wang, Bin

AU - Zhao, Pu

PY - 2019/1/23

Y1 - 2019/1/23

N2 - The wind power system based on the Doubly-Fed Induction Generator (DFIG) is one of the most popular wind power systems considering the economy and performance. However, DFIG is extremely sensitive to the grid fluctuations or faults since its stator side connected directly to the grid. When the grid voltage drops heavily, hardware protection must be required to ensure the system ride through the low voltage stage. The Crowbar Protection Circuit (CPC) is most popularly used. This paper studies the transient process of the system when the grid voltage drops. And then, the crowbar resistance and the best CPC duration are optimized by the analytic expression of transient current on the rotor side based on the standard of Low Voltage Ride Through (LVRT). The results show that the optimal crowbar resistance and the right time to remove the CPC are relevant to the rotor current transient component and the time constant. Finally, the feasibility by using grid-side converter as a STATCOM to support the reactive power of the grid during the stage of crowbar protection is discussed. The results are simulated by MATLAB/Simulink and verifies the correctness of the theory analysis.

AB - The wind power system based on the Doubly-Fed Induction Generator (DFIG) is one of the most popular wind power systems considering the economy and performance. However, DFIG is extremely sensitive to the grid fluctuations or faults since its stator side connected directly to the grid. When the grid voltage drops heavily, hardware protection must be required to ensure the system ride through the low voltage stage. The Crowbar Protection Circuit (CPC) is most popularly used. This paper studies the transient process of the system when the grid voltage drops. And then, the crowbar resistance and the best CPC duration are optimized by the analytic expression of transient current on the rotor side based on the standard of Low Voltage Ride Through (LVRT). The results show that the optimal crowbar resistance and the right time to remove the CPC are relevant to the rotor current transient component and the time constant. Finally, the feasibility by using grid-side converter as a STATCOM to support the reactive power of the grid during the stage of crowbar protection is discussed. The results are simulated by MATLAB/Simulink and verifies the correctness of the theory analysis.

KW - DFIG

KW - STATCOM

KW - crowbar protection

KW - low voltage ride through

KW - wind power system

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T3 - 1st IEEE Student Conference on Electric Machines and Systems, SCEMS 2018

BT - 1st IEEE Student Conference on Electric Machines and Systems, SCEMS 2018

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 1st IEEE Student Conference on Electric Machines and Systems, SCEMS 2018

Y2 - 14 December 2018 through 16 December 2018

ER -

Wang R, Song H, Han L, Yan L, Wang B, Zhao P. Study on LVRT of DFIG wind power system based on crowbar protection circuit. In 1st IEEE Student Conference on Electric Machines and Systems, SCEMS 2018. Institute of Electrical and Electronics Engineers Inc. 2019. 8624855. (1st IEEE Student Conference on Electric Machines and Systems, SCEMS 2018). doi: 10.1109/SCEMS.2018.8624855

Study on LVRT of DFIG wind power system based on crowbar protection circuit

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Keywords

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