Download e-book for iPad: Analysis, modeling and control of doubly-fed induction by Petersson Andreas

By Petersson Andreas

ISBN-10: 9172916001

ISBN-13: 9789172916005

Show description

Read or Download Analysis, modeling and control of doubly-fed induction generators for wind turbines PDF

Similar analysis books

Download PDF by : The Nation - Double Issue (23-30 May 2016)

Evaluate: The state is America’s oldest weekly journal and is independently released. The state speaks to an engaged viewers as a champion of civil liberties, human rights, and fiscal justice. The state breaks down severe concerns with energetic editorials, in-depth investigative reporting and research, in addition to award-winning arts insurance.

Read e-book online Discrete Event Systems: Analysis and Control PDF

Discrete occasion platforms: research and keep an eye on is the court cases of WODES2000 (the fifth Workshop on Discrete occasion structures, held in Ghent, Belgium, on August 21-23, 2000). This e-book offers a survey of the present cutting-edge within the box of modeling, research and keep an eye on synthesis of discrete occasion structures, lecture notes for a mini path on sensitivity research for functionality evaluate of timed discrete occasion structures, and forty eight rigorously chosen papers protecting all components of discrete occasion concept and an important purposes domain names.

Download e-book for iPad: Recent Progress in Functional Analysis by K. D. Bierstedt, J. Bonet, M. Maestre, J. Schmets

This complaints quantity comprises 32 articles on a variety of attention-grabbing components of present-day practical research and its purposes: Banach areas and their geometry, operator beliefs, Banach and operator algebras, operator and spectral conception, Frechet areas and algebras, functionality and series areas. The authors have taken a lot care with their articles and plenty of papers current very important effects and techniques in energetic fields of study.

Extra info for Analysis, modeling and control of doubly-fed induction generators for wind turbines

Example text

7) The back-to-back converter can be seen as two converters which are connected together: the machine-side converter (MSC) and the grid-side converter (GSC). For the MSC, the current through the valves, Irms , is the stator current for the VSIG system or the rotor current for the DFIG system. One way of calculating Irms for the GSC is by using the active current that is produced by the machine, adjusted with the ratio between machine-side voltage and the grid voltage. The reactive current can be freely chosen.

The losses of the converter can be divided into switching losses and conducting losses. The switching losses of the transistors are the turn-on and turn-off losses. , reverse-recovery energy. The turn-on and turn-off losses for the transistor and the reverse-recovery energy loss for a diode can be found from data sheets. The conducting losses arise from the current through the transistors and diodes. The transistor and the diode can be modeled as constant voltage drops, VCE0 and VT 0 , and a resistance in series, rCE and rT , see Fig.

89) Then the active and reactive power, neglecting the derivative of the stator flux, can thus be written as Ps = 3Rs |is |2 + 3ω1 (ψsd isq − ψsq isd ) Qs = 3ω1 (ψsd isd + ψsq isq ) . , ψsd = ψs and ψsq = 0, the above is reduced to Ps = 3Rs |is |2 + 3ω1 ψs isq = 3Rs |iR |2 − 2 Qs = 3ω1 ψs isd = 3ω1 ψs ψs ψ2 iRd + 2s LM LM ψs − iRd . 93), still holds approximately since Rs can be considered as small. 94) the DFIG is operated at unity power factor. Closed-Loop Reactive Power Control Since the flux for a DFIG system can be considered as constant, there will be a static relationship between the reactive power and the d component of the rotor current, GQiRd .

Download PDF sample

Analysis, modeling and control of doubly-fed induction generators for wind turbines by Petersson Andreas


by Richard
4.1

Rated 4.69 of 5 – based on 29 votes