Búsqueda personalizada

Proyectos en Labview

Dudas, comentarios sobre simulacion con Labview de instrumentacion electronica

Re: Proyectos en Labview

Notapor gus » Dom, 15 Abr 2012, 11:02

Power Quality Measurements and Tests System for Wind Turbines Based in a LabView Environment



Contents ............................................................................................................................ 11
List of figures ..................................................................................................................... 13
List of tables ...................................................................................................................... 15
List of symbols and abbreviations..................................................................................... 16
1 Introduction .............................................................................................................. 17
1.1 Background ......................................................................................................... 17
1.2 Research area ..................................................................................................... 17
1.3 The structure ...................................................................................................... 17
1.4 Limitations .......................................................................................................... 18
2 Overview of power quality disturbances .................................................................. 19
2.1 What is Power Quality ........................................................................................ 19
2.2 Interest in Power Quality ................................................................................... 21
2.3 Overview of Power Quality Phenomena ............................................................ 22
2.3.1 Variations .................................................................................................... 22
2.3.2 Events .......................................................................................................... 28
3 Wind turbines in power systems .............................................................................. 35
3.1 Wind turbine design ........................................................................................... 36
3.1.1 Power in the wind ....................................................................................... 36
3.1.2 Number of blades. ...................................................................................... 37
3.1.3 Control systems........................................................................................... 38
3.1.4 Electrical system ......................................................................................... 38
3.1.5 Constant-speed wind turbines .................................................................... 39
3.1.6 Variable-speed wind turbines ..................................................................... 40
3.2 Power Quality problems caused by wind turbines ............................................ 42
4 Measurement methods recommended by IEC 61000-4 standard. .......................... 45
4.1 Measurement aggregation ................................................................................. 46
4.2 Power frequency ................................................................................................ 47
4.3 Magnitude of supply voltage ............................................................................. 47
4.4 Supply voltage dips, swells and interruptions.................................................... 48
4.5 Supply voltage unbalance .................................................................................. 48
Power Quality Measurements and Tests System for Wind Turbines based in LabView Environment
12
4.6 Voltage harmonics and interharmonics ............................................................. 49
5 LabView environment ............................................................................................... 53
5.1 Storage of measurement data ........................................................................... 54
6 Power Quality measurement system ....................................................................... 56
6.1 Specification and design criteria ........................................................................ 56
6.1.1 Measurement chain .................................................................................... 57
6.2 Structure of the software ................................................................................... 61
6.3 Test systems ....................................................................................................... 63
6.4 Description and tests of modules ...................................................................... 64
6.4.1 Measurements and control ........................................................................ 65
6.4.2 Voltage magnitude ...................................................................................... 74
6.4.3 Harmonics and Unbalance .......................................................................... 76
6.4.4 Dips Swells Interruptions ............................................................................ 78
6.4.5 10min Tick ................................................................................................... 81
6.4.6 10-cycles Aggregation ................................................................................. 82
6.4.7 Main ............................................................................................................ 85
7 Measurements .......................................................................................................... 90
7.1 Statistics from measurement session ................................................................ 90
7.2 Disturbances ....................................................................................................... 92
7.2.1 Voltage variation ......................................................................................... 92
7.2.2 Phase jump .................................................................................................. 93
7.2.3 Harmonics ................................................................................................... 94
7.3 Measurement session ........................................................................................ 97
8 Conclusions ............................................................................................................. 102
8.1 Summary of findings ........................................................................................ 102
8.2 Implications for the future ............................................................................... 103
9 References .............................................................................................................. 105
10 Appendix ................................................................................................................. 107
Statistics from measurement period. ......................................................................... 107
Figures from investigation of coefficient k for PLL ..................................................... 112
gus
 
Mensajes: 104
Registrado: Jue, 29 Mar 2012, 19:33


Re: Proyectos en Labview

Notapor gus » Dom, 15 Abr 2012, 11:04

A LabVIEW Based Counting Photons Existence in the Light

gus
 
Mensajes: 104
Registrado: Jue, 29 Mar 2012, 19:33


AnteriorSiguiente

Volver a Labview

¿Quién está conectado?

Usuarios navegando por este Foro: No hay usuarios registrados visitando el Foro y 1 invitado

cron
Review foroingenieria.cajael.com on alexa.com