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  1. Handleidingen
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  3. Danfoss Handleidingen
  4. Industriële elektrische apparatuur
  5. Safe Torque Off VLT HVAC Drive FC 102
  6. Handboek

Danfoss VLT HVAC Drive FC 102 Handboek pagina 4

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4
2.3.1 Ongestuurde gelijkrichters ................................................................................................ 45
2.3.2 Halfgestuurde gelijkrichters .............................................................................................. 46
2.3.3 Volledig gestuurde gelijkrichters ..................................................................................... 47
2.3.4 Active Front End/Active Infeed ......................................................................................... 48
2.4.1 Variabele tussenkring .......................................................................................................... 49
2.4.2 Constante tussenkring ........................................................................................................ 51
2.6 Modulatieprincipes .......................................................................................................................... 55
2.6.1 Pulsamplitudemodulatie (PAM) ....................................................................................... 55
2.6.2 Pulsbreedtemodulatie (PWM) ........................................................................................... 56
2.6.3 Asynchrone PWM .................................................................................................................. 59
2.6.3.1 SFAVM ....................................................................................................................... 59
2.6.3.2 60° AVM .................................................................................................................... 62
2.7 Stuurcircuit en -methoden ............................................................................................................ 63
2.7.1 Eenvoudige besturingsmethode ..................................................................................... 65
2.7.2 Scalaire sturing met compensatie ................................................................................... 66
2.7.3 Ruimtevector met of zonder terugkoppeling ............................................................. 67
2.7.3.1 Ruimtevector (zonder terugkoppeling) ....................................................... 67
2.7.3.2 Ruimtevector (met terugkoppeling) ............................................................. 68
2.7.4 Flux-vectorregeling met of zonder terugkoppeling ................................................. 69
2.7.4.1 Flux-vector (zonder terugkoppeling) ............................................................ 69
2.7.4.2 Flux-vector (met terugkoppeling) .................................................................. 70
2.7.5 Servo-omvormerregeling ................................................................................................... 71
2.7.6 Conclusies over regeling ..................................................................................................... 71
2.8 Danfoss-besturingsprincipes ........................................................................................................ 71
2.8.1 Danfoss VVCplus-besturingsprincipe ............................................................................. 72
2.8.2 Danfoss flux-vectorbesturingsprincipe ......................................................................... 76
2.9 Normen en wetgeving .................................................................................................................... 77
3.1 Basisprincipes ..................................................................................................................................... 78
3.1.1 U/f-bedrijf en veldverzwakking........................................................................................ 78
3.1.2 87 Hz-kenmerken .................................................................................................................. 80
3.1.3 Draaien binnen de stroombegrenzing .......................................................................... 82
3.2 Compensaties ..................................................................................................................................... 82
3.2.1 Belastingonafhankelijke startcompensaties................................................................ 83
3.2.2 Belastingafhankelijke startcompensaties ..................................................................... 83
3.2.3 Belastingcompensaties ....................................................................................................... 84
3.2.4 Slipcompensaties .................................................................................................................. 84
.................................................................................................................................... 48
.................................................................................................................................... 52
................................................................................................. 78
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