initial.m 
load all variables according to initial conditions (Mongstad case or base case)
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vav.m
function used to compute initial valve positions

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run.m 
Main file to be used (to be entered directly in the workspace)
 - set the control configuration & filters
 - re-initialise the valve and flow values if control is chosen to be active (self-optimising steady-state values)
 - launch the appropriate Simulink file

The Simulink interface (Valvecontrol & Flowcontrol) have to be used to simulate disturbances (using the step block for example)

The heat exchangers are initialized for the Mongstad steady-state 
so the open-loop system need approx 1000s to converge to the self-optimising steady-state if control is chosen

That's why I suggest to turn on the controllers always after t=2000s

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SIMCtuning(flow)(nf).m
Apply the SIMC tuning for the PI controllers if decentralised control is chosen

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MPC6010.mat
MPC6010flow.mat

MPC tuning (to be used with Matlab MPC toolbox)

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hexchXX.m 
S-function, heat exchanger counter-current model made of N cells

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mathisen.m
Equations of the heat exchanger model

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Steadyvar.m
Initialize the heat exchangers internal temperatures according to the Mongstad steady-state

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Capacities.m
Data.m

are files of data.

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optim.m

self-made optimizer, functions with the Simulink file "al" and optimF2F3.m