|
SUPPORT SITE |
|
|
|
SUPPORT SITE |
|
Path: SCPro/Demos/ProControl
% An attitude and orbit simulation with reaction wheels. This simulation includes reaction wheels with Coulomb friction and damping. It is easy to specify the damping terms for each wheel. The demo also includes the PID3Axis controller. The core dynamics is for a gyrostat orbiting around a point mass. The base demo is the step response around y. This is a constant external torque that will cause the momentum to grow. The controller drives the transient error to zero. Note that the Coulomb friction causes limit cycling around zero wheel speed, an artifact of the model. Things to do: # Try varying the friction in the reaction wheels. # Try different control modes. # Try different disturbances. # Give the controller a different target quaternion. # Give the spacecraft nonzero initial body rates. ------------------------------------------------------------------------ See also RHSSpacecraftWithRWA, PID3Axis, Plot2D, RK4 ------------------------------------------------------------------------ % -------------------------------------------------------------------------- Copyright (c) 2015 Princeton Satellite Systems, Inc. All rights reserved. --------------------------------------------------------------------------
Common: Control/PIDMIMO Common: Graphics/Figui Common: Graphics/Plot2D Common: Graphics/Plot3D Common: Graphics/TimeLabl Common: Quaternion/QUnit Math: Integration/RK4 SCPro: DynamicalModels/RHSSpacecraftWithRWA SCPro: ProControl/PID3Axis
Back to the SCPro Module page