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Title: Coordinated Control of DFIG Based Wind Farms and SGs for Improving Transient Stability

Abstract

This paper proposes a coordinated control of doubly fed induction generator (DFIG)-based wind farms' (WFs) post-fault active power and synchronous generators' (SGs) tripping with the aim of improving transient stability of both the first swing and multi swings. To achieve it, the impact mechanism of the WFs' post-fault active power and SGs' tripping on the stability margin of each swing is first presented by using extended equal area criterion (EEAC). Based on this, a principle of the coordinated control is put forward. The WFs' control period is designed as six stages, and the value of post-fault active power in each stage is suggested to improve the stability of the first five swings and maintain the post-fault steady state. To decrease the tripping amount of the SGs, the SGs are tripped only when WFs' control effect is not sufficient to avoid the instability. Then, by utilizing an “online pre-decision and real-time matching”scheme, an engineering application method for the control principle is proposed, where the control procedures and detailed parameters calculation are demonstrated. The numerical simulations show that the coordinated control has a better damping effect and a less control cost (less amount of tripped SGs) than the traditional DFIG control ormore » traditional SG tripping.« less

Authors:
 [1]; ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [3];  [1];  [4]
  1. North China Electric Power Univ., Beijing (China). State Key Lab. for Alternate Electrical Power System with Renewable Energy Sources
  2. Hohai Univ., Nanjing (China). College of Energy and Electrical Engineering
  3. Huazhong Univ. of Science and Technology, Wuhan (China). School of Electrical and Electronic Engineering
  4. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Electrical Engineering and Computer Science
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1564160
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
IEEE Access
Additional Journal Information:
Journal Volume: 6; Journal Issue: n/a; Journal ID: ISSN 2169-3536
Publisher:
IEEE
Country of Publication:
United States
Language:
English
Subject:
17 WIND ENERGY; coordinated control; control cost; DFIG based wind farms; improving transient stability; doubly fed induction generator-based wind farms; stability margin; post-fault active power; post-fault steady state; control principle; control procedures; WF; SG tripping; WF control period; WF control effect; extended equal area criterion; EEAC

Citation Formats

Zhou, Ming, Dong, Zhe, Li, Hongyu, Gan, Chun, Li, Gengyin, and Liu, Yilu. Coordinated Control of DFIG Based Wind Farms and SGs for Improving Transient Stability. United States: N. p., 2018. Web. doi:10.1109/ACCESS.2018.2866252.
Zhou, Ming, Dong, Zhe, Li, Hongyu, Gan, Chun, Li, Gengyin, & Liu, Yilu. Coordinated Control of DFIG Based Wind Farms and SGs for Improving Transient Stability. United States. doi:10.1109/ACCESS.2018.2866252.
Zhou, Ming, Dong, Zhe, Li, Hongyu, Gan, Chun, Li, Gengyin, and Liu, Yilu. Fri . "Coordinated Control of DFIG Based Wind Farms and SGs for Improving Transient Stability". United States. doi:10.1109/ACCESS.2018.2866252. https://www.osti.gov/servlets/purl/1564160.
@article{osti_1564160,
title = {Coordinated Control of DFIG Based Wind Farms and SGs for Improving Transient Stability},
author = {Zhou, Ming and Dong, Zhe and Li, Hongyu and Gan, Chun and Li, Gengyin and Liu, Yilu},
abstractNote = {This paper proposes a coordinated control of doubly fed induction generator (DFIG)-based wind farms' (WFs) post-fault active power and synchronous generators' (SGs) tripping with the aim of improving transient stability of both the first swing and multi swings. To achieve it, the impact mechanism of the WFs' post-fault active power and SGs' tripping on the stability margin of each swing is first presented by using extended equal area criterion (EEAC). Based on this, a principle of the coordinated control is put forward. The WFs' control period is designed as six stages, and the value of post-fault active power in each stage is suggested to improve the stability of the first five swings and maintain the post-fault steady state. To decrease the tripping amount of the SGs, the SGs are tripped only when WFs' control effect is not sufficient to avoid the instability. Then, by utilizing an “online pre-decision and real-time matching”scheme, an engineering application method for the control principle is proposed, where the control procedures and detailed parameters calculation are demonstrated. The numerical simulations show that the coordinated control has a better damping effect and a less control cost (less amount of tripped SGs) than the traditional DFIG control or traditional SG tripping.},
doi = {10.1109/ACCESS.2018.2866252},
journal = {IEEE Access},
number = n/a,
volume = 6,
place = {United States},
year = {2018},
month = {9}
}

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