getting_started_classical.cpp

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/*
 *    This file is part of ACADO Toolkit.
 *
 *    ACADO Toolkit -- A Toolkit for Automatic Control and Dynamic Optimization.
 *    Copyright (C) 2008-2014 by Boris Houska, Hans Joachim Ferreau,
 *    Milan Vukov, Rien Quirynen, KU Leuven.
 *    Developed within the Optimization in Engineering Center (OPTEC)
 *    under supervision of Moritz Diehl. All rights reserved.
 *
 *    ACADO Toolkit is free software; you can redistribute it and/or
 *    modify it under the terms of the GNU Lesser General Public
 *    License as published by the Free Software Foundation; either
 *    version 3 of the License, or (at your option) any later version.
 *
 *    ACADO Toolkit is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *    Lesser General Public License for more details.
 *
 *    You should have received a copy of the GNU Lesser General Public
 *    License along with ACADO Toolkit; if not, write to the Free Software
 *    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 */



#include <acado_toolkit.hpp>
#include <acado_gnuplot.hpp>


int main( )
{
    USING_NAMESPACE_ACADO


    // SETTING UP THE FEEDBACK CONTROLLER:
    // -----------------------------------
        PIDcontroller pid( 4,1,0.01 );

        DVector pWeights( 4 );
        pWeights(0) = 1000.0;
        pWeights(1) = -1000.0;
        pWeights(2) = 1000.0;
        pWeights(3) = -1000.0;

        DVector dWeights( 4 );
        dWeights(0) = 0.0;
        dWeights(1) = 0.0;
        dWeights(2) = 20.0;
        dWeights(3) = -20.0;

        pid.setProportionalWeights( pWeights );
        pid.setDerivativeWeights( dWeights );

        pid.setControlLowerLimit( 0,-200.0 );
        pid.setControlUpperLimit( 0, 200.0 );


//      DMatrix K( 1,4 );
//      K(0,0) = -3.349222044080232e+04;
//      K(0,1) = -3.806600292165519e+03;
//      K(0,2) =  9.999999999999985e+02;
//      K(0,3) = -1.040810121403324e+03;
// 
//      LinearStateFeedback lqr( K,0.025 );
// 
//      lqr.setControlLowerLimit( 0,-200.0 );
//      lqr.setControlUpperLimit( 0, 200.0 );


        StaticReferenceTrajectory zeroReference;

        Controller controller( pid,zeroReference );
//      Controller controller( lqr,zeroReference );


        // INITIALIZE CONTROLLER AND PERFORM A STEP:
        // -----------------------------------------
        DVector y( 4 );
        y.setZero( );
        y(0) = 0.01;

        controller.init( 0.0,y );
        controller.step( 0.0,y );


        DVector u;
        controller.getU( u );
        u.print( "Feedback control" );

    return 0;
}