Input valve displacement
This presentation is the property of its rightful owner.
Sponsored Links
1 / 23

Input ( Valve Displacement ) PowerPoint PPT Presentation


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

B. A. Output (Force). x. Input ( Valve Displacement ). Tank. Pump. Code. X. S1. S2. S3. X. Calculating Blade Loads. Lift = 0.5* v 2 *Area* ρ *C L Drag = 0.5* v 2 *Area* ρ *C D Where C L &C D = f( Angle of Attack ). Lift. Drag. Rotation Wind = Rotor Speed( ω )* radius.

Download Presentation

Input ( Valve Displacement )

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


Input valve displacement

B

A

Output(Force)

x

Input(Valve

Displacement)

Tank

Pump


Input valve displacement

Code


Input valve displacement

X


Input valve displacement

S1

S2

S3


Input valve displacement

X


Input valve displacement

Calculating Blade Loads

Lift= 0.5*v2*Area*ρ*CL

Drag= 0.5*v2*Area*ρ*CD Where CL&CD= f(Angle ofAttack)

Lift

Drag

Rotation Wind = Rotor Speed(ω)*radius

Positive

Pitch Angle (θ)

InflowAngle

Pure Wind(Vinf)

α

ResultantWind

Angle ofAttack(α)

InflowAngle

PitchAngle

=

-

Pure Wind

Rotation Wind

= atan


Control structure for pitch control

ControlStructureforPitchControl

ControlStructureforPitchControl

Pitch AngleCommand

ValvePosition

Desired AngleofAttack

DesiredRotor Speed

+

Control

Control

-

InflowAngle

ActualRotor Speed

Limit PitchtoStable Region


Control structure for yaw control

ControlStructurefor Yaw Control

ControlStructurefor Yaw Control

Yaw RateCommand

TorqueCommand

YawCommand

Control

Control

Limit Rateto 0.5 deg/s

Nacelle

Yaw Angle

Nacelle

Yaw Rate


Input valve displacement

Pitch

Wind

Blades

Geartrain

Generator

Hub

Yaw

Tower

Grid


  • Login