NDLI: Current controller design for DFIG-based wind turbines using state feedback control

Content Provider	IET Digital Library
Author	Khalil, Ahmed G. Abo Alghamdi, Ali Tlili, I. Eltamaly, Ali M.
Abstract	Doubly-fed induction generators (DFIGs) are widely used in wind energy conversion systems. The dynamic features of DFIGs make it important to focus on designing high-performance control schemes. However, the dynamic characteristics of such generators depend on nonlinear parameters, such as stator flux, stator current, and rotor current, which increase overall system complexity. Therefore, robust controllers must be implemented with the ability to support the dynamic frequencies of wind energy to ensure system stability. Conventional vector control configurations that use proportional-integral controllers have various drawbacks, such as parameter tuning difficulties, mediocre dynamic performance, and reduced robustness. In this study, improving DFIG dynamics by applying a multivariable state feedback current controller with a feedforward component to improve the steady-state and transient characteristics of the controller has been introduced and discussed. Multivariable state feedback controllers are proposed to replace the proportional-integral controllers on both the rotor and grid sides. The proposed controller is designed using a multivariable system and feedforward control for input reference and incorporating disturbances into the control equations for fast transient responses. To demonstrate the advantages of this controller, experimental studies are presented for both the transient and steady states.
Starting Page	1938
Ending Page	1948
Page Count	11
ISSN	17521416
Volume Number	13
e-ISSN	17521424
Issue Number	Issue 11, Aug (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-rpg/13/11
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-rpg.2018.6030
Journal	IET Renewable Power Generation
Publisher Date	2019-05-16
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Asynchronous Generator Asynchronous Machine Control of Electric Power System Control System Analysis Control System Synthesis Conventional Vector Control Configurations Current Control Current Controller Design DFIG Doubly Fed Induction Generator Electric Current Control Feedforward Feedforward Component Feedforward Control Multivariable State Feedback Controller Multivariable State Feedback Current Controller Multivariable System Power Generation Control Power System Control Proportional-integral Controller Robust Control Robust Controller Rotors Stability in Control Theory State Feedback State Feedback Control Stators Synthesis Method System Stability Transient Response Wind Energy Conversion System Wind Power Plant Wind Turbine
Content Type	Text
Resource Type	Article
Subject	Renewable Energy, Sustainability and the Environment

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