NDLI: Inner Control Method and Frequency Regulation of a DFIG Connected to a DC Link

Content Provider	IEEE Xplore Digital Library
Author	Marques, G.D. Iacchetti, M.F.
Copyright Year	1986
Abstract	In this paper, an inner loop for the control and frequency regulation of the doubly fed induction generator connected to a dc link through a diode bridge on the stator is presented. In this system, the stator is directly connected to the dc link using a diode bridge, and the rotor is fed by only a pulsewidth-modulated (PWM) converter. If compared to the DFIG connected to an ac grid, this system uses one PWM inverter less and a much less expensive diode bridge. Thus, the cost of power electronics is reduced. The application in mind is for dc networks such as dispersed generation grids and microgrids. These networks use several elements that should work together. Usually, these elements are connected with each other by power electronic devices in a common dc link. This paper presents a control system for the inner control loop in order to regulate the torque and the stator frequency. Simulation and experimental results show that the system works properly and is able to keep the stator frequency near the rated value of the machine.
Sponsorship	IEEE Power Engineering Society
Starting Page	435
Ending Page	444
Page Count	10
File Size	1907791
File Format	PDF
ISSN	08858969
Volume Number	29
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Rotors Frequency control Steady-state Control systems Stator windings Bridge circuits doubly fed induction generator Control dc link dc microgrids
Content Type	Text
Resource Type	Article
Subject	Energy Engineering and Power Technology Electrical and Electronic Engineering

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