NDLI: Improved super-twisting sliding mode control of a stand-alone DFIG-DC system with harmonic current suppression

Content Provider	IET Digital Library
Author	Guo, Lei Wang, Dan Peng, Zhouhua Diao, Liang
Abstract	This study presents an improved super-twisting sliding mode (SSM) approach to a stand-alone doubly fed induction generator (DFIG) for direct current (DC) generation system. By taking the uncertainties into consideration, an improved SSM regulator based on an extended state observer (ESO) is proposed to enhance the robustness of DC-voltage regulation. Moreover, a novel sinusoidal rotor current calculation method is proposed to generate sinusoidal reference of rotor current. A resonant-based ESO (R-ESO) SSM approach is proposed to regulate rotor current. By applying the R-ESO to estimate the model-related part of DFIG, the tracking performance with respect to a sinusoidal reference is improved. Then, the suppression ability to fifth and seventh harmonic currents are enhanced. Finally, both simulations and experiments on a 6-kW DFIG-DC system are provided to show the effectiveness of DC-voltage regulation and harmonic current suppression of the proposed approach.
Starting Page	1311
Ending Page	1320
Page Count	10
ISSN	17554535
Volume Number	13
e-ISSN	17554543
Issue Number	Issue 7, May (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-pel/13/7
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2019.0691
Journal	IET Power Electronics
Publisher Date	2020-01-20
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Asynchronous Generator Asynchronous Machine Control of Electric Power System DC-voltage Regulation DFIG-DC System Direct Current Generation System Extended State Observer Fifth Current Harmonic Current Suppression Improved SSM Regulator Induction Generator Multivariable Control System Novel Sinusoidal Rotor Current Calculation Method Observers R-ESO Resonant-based ESO SSM Approach Rotors Seventh Harmonic Current Sinusoidal Reference Sliding Mode Approach Sliding Mode Control Suppression Ability Variable Structure System Voltage Control
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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