Annihilation of calcium oscillations (jModelica)
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This page contains the source code to solve the Annihilation of calcium oscillations problem with JModelica. The automatic differentiation tool CasADI and the solver IPOPT were used to solve the problem.
Model file (calcium_opt.mop)
//------------------------------------------------------------------------- //Annihilation of calcium oscillations with direct collocation using JModelica //(c) Madeleine Schroter //-------------------------------------------------------------------------- optimization calcium_opt (objective = cost(finalTime), startTime = 0, finalTime = 22) // Parameters parameter Real k1 = 0.09; // Parameter k1 parameter Real k2 = 2.30066; // Parameter k2 parameter Real k3 = 0.64; // Parameter k3 parameter Real K4 = 0.19; // Parameter K4 parameter Real k5 = 4.88; // Parameter k5 parameter Real K6 = 1.18; // Parameter K6 parameter Real k7 = 2.08; // Parameter k7 parameter Real k8 = 32.24; // Parameter k8 parameter Real K9 = 29.09; // Parameter K9 parameter Real k10 = 5.0; // Parameter k10 parameter Real K11 = 2.67; // Parameter K11 parameter Real k12 = 0.7; // Parameter k12 parameter Real k13 = 13.58; // Parameter k13 parameter Real k14 = 153.0; // Parameter k14 parameter Real K15 = 0.16; // Parameter K15 parameter Real k16 = 4.85; // Parameter k16 parameter Real K17 = 0.05; // Parameter K17 parameter Real p17 = 1.0; // Parameter p17 parameter Real p18 = 1.0; // Parameter p18 parameter Real umax = 1.3; parameter Real p1 = 100; // Parameter p1 parameter Real x0tilde = 6.78677; // Parameter x0tilde parameter Real x1tilde = 22.65836; // Parameter parameter Real x2tilde = 0.384306; // Parameter x2tilde parameter Real x3tilde = 0.28977; // Parameter x3tilde // The states Real x0(start=0.03966, fixed=true); Real x1(start=1.09799, fixed=true); Real x2(start=0.00142, fixed=true); Real x3(start=1.65431, fixed=true); Real cost(start=0, fixed=true); // The control signal input Real u(free=true); equation der(x0) = k1+k2*x0-((k3*x0*x1)/(x0+K4))-((k5*x0*x2)/(x0+K6)); der(x1) = k7*x0 - ((k8*x1)/(x1+K9)); der(x2)=(k10*x1*x2*x3)/(x3+K11)+p18*k12*x1+k13*x0-(k14*x2)/( p17*(1.0 + u*( umax - 1.0)) *x2+K15)-(k16*x2)/(x2+K17)+x3/10; der(x3)=-(k10*x1*x2*x3)/(x3+K11)+(k16*x2)/(x2+K17)-x3/10; der(cost)=(x0-x0tilde)*(x0-x0tilde)+(x1-x1tilde)*(x1-x1tilde)+ (x2-x2tilde)*(x2-x2tilde)+(x3-x3tilde)*(x3-x3tilde)+p1*u; constraint x0>=0; x1>=0; x2>=0; x3>=0; end calcium_opt;
Run file
#Import the function for transfering a model to CasADiInterface from pyjmi import transfer_optimization_problem op=transfer_optimization_problem("calcium_opt", "calcium_opt.mop") res=op.optimize()