MATLAB: How to use the SimElectronics NTC thermistor with SimPower elements

Question

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:

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

Answer 1

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