NDLI: Design of a measuring system to analyze the power transmission in the slip ring system in double fed induction generators (DFIG)

Content Provider	IEEE Xplore Digital Library
Author	Houenouvo, A.T.H. Jensch, R. Hofmann, W.
Copyright Year	2013
Description	Author affiliation: Elektrotech. Inst., Tech. Univ. Dresden, Dresden, Germany (Houenouvo, A.T.H.; Jensch, R.; Hofmann, W.)
Abstract	Large percentages of wind power plants are using double-fed induction generators (DFIG). The slip ring apparatus in DFIGs is used to transfer the rotor current from the rotating to the static part of the generator. During transfer of current, micro brush fires occur in contact area, caused by the separation of brush and slip ring. As a result of the discharge of electric arc energy, temperature rises in area of contact. This phenomenon is largely influenced by the electromagnetic forces, the radial eccentricity, the electro-hydrodynamic and the mechanical forces. In addition, the increased temperature in the contact area influences the wear of graphite brushes. To investigate these influences in our slip ring apparatus on the exciting of the micro brush fires, a Field Programmable Gate Array (FPGA)-based measuring system and software is designed. This system helps us to gauge the relevant measured variables and to characterize the micro brush fires. The measurement system communicates with the computer via the programs $(C^{++}$ and Labview). The $C^{++}-program$ is used to transfer the data via the Universal Serial Port (USB). The program Labview communicates with the $C^{++}-part$ via TCP-IP to configure the FPGA and to visualize these data.
Starting Page	5118
Ending Page	5122
File Size	1300950
Page Count	5
File Format	PDF
ISBN	9781479903368
DOI	10.1109/ECCE.2013.6647392
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-09-15
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Brushes Micro fires Friction force Force FPGA Asynchronous generators Generators Renewable energy source Graphite-brushes and slips rings Electrical contacts Temperature measurement Fingers Elasto hydrodynamic forces Electrodynamic forces (Lorenz-forces) Field programmable gate arrays
Content Type	Text
Resource Type	Article

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