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Keeeen
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Homework Statement
FIGURE 3 shows the block biagram of the control of an electric heating system. The heater is driven from a voltage-controlled power supple, the voltage V1 being derived from a potentiometer. The output temperature, θo is subject to distrubances, θd, because of changes in ambient temperature. It is proposed to apply 'disturbance feedback control' to the system by the inclusion of a transducer that measures the external temperature and feeds a signal back to the input via a proportional controller of gain H.
Determine the required value of H to eleminate the effect of the disturbance.
See figure 3 attached.
Homework Equations
The Attempt at a Solution
So the learning material I've been given does not give any help with trying to find the gain of a controller in a loop.
I'm thinking I need to determine the transfer function of the loop and work from there? Or is it a lot easier than that.
If anyone could give me some guidance as to where to start that would be appreciated.