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I have a system with iterative
feedback controller(Type 22) to control the flow rate based on the error
signal(Temperature). In the secant method used by this type, one assumption
would be that the error signal produced by a control signal is repeatable (so
that the control signal can be interpolated). But it takes a few
iterations for the system to give out a constant error signal(i.e Converged
values) for a given control signal.
This makes the secant method unusable
unless we use the converged values to determine what the next control signal
should be.
One way to work over this could be
that we check for convergence and the calculate the new control signal and then
instruct trnsys that the system is not converged yet for the current time
step and do this until the desired control signal is
calculated.
Could anyone please let me know if this is possible
or if there is a better method to solve this problem.
Thank you,
krishna
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