Sponsored Links
This presentation is the property of its rightful owner.
1 / 49

ทฤษฎีเครื่องจักรไฟฟ้าเหนี่ยวนำ PowerPoint PPT Presentation


  • 85 Views
  • Uploaded on
  • Presentation posted in: General

ทฤษฎีเครื่องจักรไฟฟ้าเหนี่ยวนำ. ทฤษฎีเครื่องจักรไฟฟ้าเหนี่ยวนำหลายเฟส. เครื่องจักรเหนี่ยวนำในอุดมคติ. เครื่องจักรเหนี่ยวนำ 3- เฟส ในอุดมคติ. แนวแกนของเส้นแรงแม่เหล็กของ Rotor แต่ละเฟสให้ทำมุม. กับแนวแกนของ Stator. = ความเร็วเชิงมุมของ Rotor.

Download Presentation

ทฤษฎีเครื่องจักรไฟฟ้าเหนี่ยวนำ

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript



3-

Rotor

Stator

= Rotor


3

Slip s

= Stator


6

Stator :

Rotor:


Stator:


Rotor :


Flux linkage Stator Rotor

Stator:

Rotor:


dq

Stator 3-

mmf d q

Stator

kd kq 2/3

Components mmf


d q

iaib ic

Stator flux linkage Statorvoltage

Synchronous machines

Note :


Rotor

dq

Rotor A d

Rotor Slip s d

Rotor

Subscript s

Slip


Component Rotor-mmf

Factor 2/3 Stator Rotor dq


Matrix form Synchronous machines

Stator :


Rotor :


dq

Flux linkage dq Stator Rotor

Stator :

Rotor :


dq Flux linkage

Stator :

Rotor :

Slip angular velocity

+Motor operation

-Generator operation

Stator Transformer voltage Speed voltage


Stator

dq

Rotor

Rotor dq

()


Mechanical radians

  • Steady state

Slip s Stator

Rotor Stator


dq

StatorRotor

d a

Stator


Phasor

StatorRotor


Flux linkage

Stator:

Rotor :


Stator

Rotor


Stator


Transformer voltage


Note :

Statorq1 phase

Note :

Mechanical radian


Steady state characteristic

Rotor

Stator Rotor


Thevenins Theorem

Thevenins theorem


Thevenins theorem


V1a ab Rotor

I0 Exciting current

ab


Torque-Slip Characteristic

Thevenin equivalent circuit

Slip-torque curve


Breakdown torque Tmax Slip smaxT

Slip smaxT


Curve


Slip-torque curve

Rotor


Electrical Transient

Stator

Transformer voltage Stator Speed voltage Rotor

Stator:

Rotor:

Note :


Flux linkage Rotor


rmsStator


rms

Transient time constantRotor

Time constant Stator


Transient

rms


rms t

Induction Machine Dynamics

Speed-torque curve

Curve

Rotor


Curve

Mechanical radian

Integrate

Curve

Upper limit

Integrate


Speed-time curve


  • 2-

2-


Speed-torque curve 2-


Self-synchronous


Torque-angle


Maximum torque


Single-phase Instrument Types


Synchro Control Transformers


6.1, 6.4, 6.7, 6.8, 6.9, 6.16


  • Login