NDLI: H∞ mixed-sensitivity robust control design for damping low-frequency oscillations with DFIG wind power generation

Content Provider	IET Digital Library
Author	Isbeih, Younes J. Moursi, Mohamed Shawky El Xiao, Weidong Saadany, Ehab El
Abstract	This study presents a H ∞ mixed-sensitivity robust control design to improve the overall damping performance of low-frequency oscillations for power systems with doubly fed induction generator-based (DFIG) wind power generation. The supplementary damping controller is designed in the linear matrix inequality framework which allows the placement of the closed-loop poles inside a pre-defined region for improved stability. The damping signal is implemented at the reactive power modulation of the rotor-side converter of the DFIG wind turbine (DFIG-WT). The damping contribution of the power oscillator damper is compared with that provided by the power system stabiliser (PSS) of the synchronous generator (SG). State-space system analysis and time-domain simulations show the capability of DFIG-WT to enhance the overall damping of the oscillatory modes even if PSSs are not installed at SG s. Also, the designed controller shows a robust performance to wind speed variations. The performance evaluation is based on the revised two-area four machines system and the revised New England 39-bus system.
Starting Page	4274
Ending Page	4286
Page Count	13
ISSN	17518687
Volume Number	13
e-ISSN	17518695
Issue Number	Issue 19, Oct (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/13/19
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2018.6433
Journal	IET Generation, Transmission & Distribution
Publisher Date	2019-08-01
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Algebra Asynchronous Generator Asynchronous Machine Closed Loop System Control of Electric Power System Control System Analysis Control System Synthesis Damping Damping Contribution Damping Low-frequency Oscillations Damping Performance Damping Signal DFIG Wind Power Generation DFIG Wind Turbine DFIG-WT Doubly Fed Induction Generator-based Wind Power Generation H∞ Mixed-sensitivity Robust Control Design Linear Matrix Inequalities Linear Matrix Inequality Framework Mixed-sensitivity Robust Control Design Optimal Control Oscillation Power Generation Control Power Oscillator Damper Power System Control Power System Stabiliser Power System Stability Reactive Power Modulation Robust Control Robust Performance Rotors Stability in Control Theory State-Space System Analysis Supplementary Damping Controller Synchronous Generator Synchronous Machine Synthesis Method Wind Power Plant Wind Turbine
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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