How to use the SimElectronics NTC thermistor with SimPower elements?
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taugrin
on 15 Nov 2016
Commented: Grégory SEABRA
on 18 Nov 2016
Hi, I'm need help! I need to simulate the NTC thermistor, which operate as a current limiter. My model is made on SimPowerSystems elements, but the finding model of NTC thermistor is a SimElectronics element. I have read that these elements can be combined using the "Current-Voltage Simscape Interface". How can I to do it? I tried to do like this:
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/158071/image.gif)
But there is an error "Error compiling Simscape network for model ntc_current_limmiter".
I have never worked with SimElectronics. Please help me. Best regards, Alexander
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Accepted Answer
Grégory SEABRA
on 15 Nov 2016
Hi,
I think you might want to use the Voltage-Current Simscape Interface instead of the Current-Voltage Simscape interface.
Indeed, your NTC is connected in series with your diode rectifier's output. You thus need to have a current measurement on the SPS side, along with a voltage source driven by the Simscape side.
Regards,
Greg
2 Comments
Grégory SEABRA
on 18 Nov 2016
Hi,
Depending on your design, you could maybe discretize the PowerGUI to eliminate the continuous states relating to the simpowersystems elements if it's not done yet. That might allow you to use the fixed step solver. If that does not work, try to use ode23T as they recommend in the error message.
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