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Hello,
I've got, rather non trivial problem. I'm doing my engineer's degree project which is all about measurements and description of electromechanical device producing magnetic pulses.
The basics of description are laid in transient states of RLC circuits. What physically I do is charging big capacitors in parallel, then triggering, my mechanical connector to initialize the transient state in my circuit. Then I measure the voltage drop across inductor, and capacitor, and based on that my matlab code tries to fit the best non-ideal component parameters.
Problem is that despite treating my elements as non-ideal I still cannot achieve consistent parameters fit. Fitting measured capacitors voltage gives me quite good values that fits my previous elements measurements. But measured inductor voltage gives me to big values for capacitance, underestimate coil inductance giving it bigger resistance than predicted.
The worth noticing thing is the arc that shows up while triggering the device.
For couple of days I'm trying to figure out, what do I lack in my model, that generates such inconsistencies.
It is quite important for me, because I need to know the exact current flow in the circuit for the power calculations.
Data:
Global RLC and R L of currently measured parameter
Inductor
Capacitor
Measurements and curve fitted:
Circuits
Notice that I added here small cap. here in parallel with coil, which wasn't considered in my calculations, but it doesn't affect my circuit anyway. It just cases some ringing at the beginning, which I thought to me caused by the triggering mechanism.
Voltage on L2:
Voltage on L17:
Some Ideas?
I've got, rather non trivial problem. I'm doing my engineer's degree project which is all about measurements and description of electromechanical device producing magnetic pulses.
The basics of description are laid in transient states of RLC circuits. What physically I do is charging big capacitors in parallel, then triggering, my mechanical connector to initialize the transient state in my circuit. Then I measure the voltage drop across inductor, and capacitor, and based on that my matlab code tries to fit the best non-ideal component parameters.
Problem is that despite treating my elements as non-ideal I still cannot achieve consistent parameters fit. Fitting measured capacitors voltage gives me quite good values that fits my previous elements measurements. But measured inductor voltage gives me to big values for capacitance, underestimate coil inductance giving it bigger resistance than predicted.
The worth noticing thing is the arc that shows up while triggering the device.
For couple of days I'm trying to figure out, what do I lack in my model, that generates such inconsistencies.
It is quite important for me, because I need to know the exact current flow in the circuit for the power calculations.
Data:
Global RLC and R L of currently measured parameter
Inductor
Capacitor
Measurements and curve fitted:
Circuits
Notice that I added here small cap. here in parallel with coil, which wasn't considered in my calculations, but it doesn't affect my circuit anyway. It just cases some ringing at the beginning, which I thought to me caused by the triggering mechanism.
Voltage on L2:
Voltage on L17:
Some Ideas?
