Hi,
I am wondering how I can calculate the maximum error of a measurement chain.
If I have a voltage transducer with a accuracy of +-1%, which is wired to analogue input of a PLC (12 bit), what's the error of it?
The output of the transducer is 0-10V so as the input.
Cheers,
Lars
Hi,
I am working with simple energy model composed of a PV, loads and battery.
The model is fed by measured data (sample rate one minute).
The battery model (input AC power set-point, output AC power) was tested separately and it includes a power control algorithm (PI) and max. voltage control...
Hi,
I have the following problem and maybe someone can give me a clue how to solve it.
I have collected data (Temperature, Q_gen, Ambient temperature) of a heating process and now I want to estimate some parameters in order to solve the energy balance.
This is the energy balance:
internal...
Hi Peter,
thanks for the information especially about Scilab. I haven't heard about it but I discussed it with a colleague and we agreed on to check this open source tool.
However, I am going to estimate the parameter to get an IMC based PID. But I have one question about how to calculate the...
Hello Peter,
many thanks for your reply. I haven't worked with internal model control so far. But I would like to learn more about it.
Do you have a simple example how to enhance a PI controller to IMC?
What do you mean by "move your control signal more", to use a higher step?
Regards,
Ossi
Hi xnuke, What do you mean I am confusing t and T. Could you please give me an example where this is. You are completely right that the time vector is wrong it should be 0:0.5:19 the sample time was 0.5 seconds.
Thanks for the link I will check it...
Hi,
I'm a newbie using matlab and to deal with system identification. But as it happend I have to tune a PI Controller for a process. So I thought a open loop test like a step response test is sufficient. I carried out the following test:
set the control signal to a fixed value and see what...
Hi,
I'm a newbie using matlab and to deal with system identification. But as it happend I have to tune a PI Controller for a process. So I thought a open loop test like a step response test is sufficient. I carried out the following test:
set the control signal to a fixed value and see what...
