Variable gain control scheme of DFIG-based wind farm for over-frequency support

Yujun Li; Zhao Xu; Jianliang Zhang; Kit Po Wong

doi:10.1016/j.renene.2017.11.055

Variable gain control scheme of DFIG-based wind farm for over-frequency support

Yujun Li, Zhao Xu, Jianliang Zhang, Kit Po Wong

Research output: Contribution to journal › Article › peer-review

36 Citations (Scopus)

Abstract

In order to mitigate over-frequency events in the power systems, this paper proposes a new variable gain based control strategy to maximize the frequency support while minimizing impacts to the overall energy production for a wind power plant (WPP). Because of different wind conditions, the energy production by each WT is not equally compromised by adaptively adjusting the droop gains according to the different rotor speeds so that minimal reduction of energy production can be ensured. The control performance was fully investigated in a doubly fed induction generator (DFIG) based WPP and the results clearly indicate the proposed variable droop gain scheme can harness more wind energy than the conventional same droop gain scheme while providing similar frequency support.

Original language	English
Pages (from-to)	379-391
Number of pages	13
Journal	Renewable Energy
Volume	120
DOIs	https://doi.org/10.1016/j.renene.2017.11.055
Publication status	Published - 1 May 2018

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10.1016/j.renene.2017.11.055

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title = "Variable gain control scheme of DFIG-based wind farm for over-frequency support",

abstract = "In order to mitigate over-frequency events in the power systems, this paper proposes a new variable gain based control strategy to maximize the frequency support while minimizing impacts to the overall energy production for a wind power plant (WPP). Because of different wind conditions, the energy production by each WT is not equally compromised by adaptively adjusting the droop gains according to the different rotor speeds so that minimal reduction of energy production can be ensured. The control performance was fully investigated in a doubly fed induction generator (DFIG) based WPP and the results clearly indicate the proposed variable droop gain scheme can harness more wind energy than the conventional same droop gain scheme while providing similar frequency support.",

keywords = "Doubly fed induction generator (DFIG), Droop gain, Energy cost, Frequency regulation, Wind turbine",

author = "Yujun Li and Zhao Xu and Jianliang Zhang and Wong, {Kit Po}",

year = "2018",

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doi = "10.1016/j.renene.2017.11.055",

language = "English",

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journal = "Renewable Energy",

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T1 - Variable gain control scheme of DFIG-based wind farm for over-frequency support

AU - Li, Yujun

AU - Xu, Zhao

AU - Zhang, Jianliang

AU - Wong, Kit Po

PY - 2018/5/1

Y1 - 2018/5/1

N2 - In order to mitigate over-frequency events in the power systems, this paper proposes a new variable gain based control strategy to maximize the frequency support while minimizing impacts to the overall energy production for a wind power plant (WPP). Because of different wind conditions, the energy production by each WT is not equally compromised by adaptively adjusting the droop gains according to the different rotor speeds so that minimal reduction of energy production can be ensured. The control performance was fully investigated in a doubly fed induction generator (DFIG) based WPP and the results clearly indicate the proposed variable droop gain scheme can harness more wind energy than the conventional same droop gain scheme while providing similar frequency support.

AB - In order to mitigate over-frequency events in the power systems, this paper proposes a new variable gain based control strategy to maximize the frequency support while minimizing impacts to the overall energy production for a wind power plant (WPP). Because of different wind conditions, the energy production by each WT is not equally compromised by adaptively adjusting the droop gains according to the different rotor speeds so that minimal reduction of energy production can be ensured. The control performance was fully investigated in a doubly fed induction generator (DFIG) based WPP and the results clearly indicate the proposed variable droop gain scheme can harness more wind energy than the conventional same droop gain scheme while providing similar frequency support.

KW - Doubly fed induction generator (DFIG)

KW - Droop gain

KW - Energy cost

KW - Frequency regulation

KW - Wind turbine

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DO - 10.1016/j.renene.2017.11.055

M3 - Article

AN - SCOPUS:85039997801

SN - 0960-1481

VL - 120

SP - 379

EP - 391

JO - Renewable Energy

JF - Renewable Energy

ER -

Variable gain control scheme of DFIG-based wind farm for over-frequency support

Abstract

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