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An experimentally determined field winding model with frequency-dependent parameters
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- Felicetti, Roberto, 1972- (author)
- Uppsala universitet,Elektricitetslära,Hydropower
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- Abrahamsson, Johan, 1977- (author)
- Uppsala universitet,Elektricitetslära,Hydropower
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- Lundin, Urban, 1972- (author)
- Uppsala universitet,Elektricitetslära,Hydropower
- (creator_code:org_t)
- 2021-04-14
- 2021
- English.
- In: IET Electric Power Applications. - : Institution of Engineering and Technology. - 1751-8660 .- 1751-8679. ; 15:6, s. 696-716
- Journal article (peer-reviewed)
Abstract
Subject headings
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- Herein, a set of experimental procedures is presented for determining the main electrical distributed parameters of the field winding in salient pole synchronous machines. It applies to the electrical characterisation of iron-core power inductors and transformer windings as well, in a range of frequency useful for power electronics applications. A first estimation of the parameters is obtained by forcing the winding into resonance with capacitors of known capacitance. The obtained estimates are then refined through an iterative process, which makes use of the winding natural frequencies. The presented procedures are applied step-by-step to the field winding of a 60-kVA salient pole synchronous generator with solid poles. The distributed parameters model, featured using the outlined procedures, accurately reproduces the winding voltage distribution in a large range of frequency. Finally, it is explored how the interaction between armature and rotor influences the field winding parameters, pointing to the differences of measuring them with the rotor inside or outside the machine bore.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Annan elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Other Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Keyword
- overvoltage
- AC machines
- machine windings
- eddy currents
- inductance measurement
- Elektroteknik med inriktning mot systemanalys
- Electrical Engineering with specialization in Systems Analysis
Publication and Content Type
- ref (subject category)
- art (subject category)
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