Description
The GTO is a semiconductor device that can be turned ON/OFF via a gate signal. The model considers various factors like forward bias threshold, forward and reverse break over voltage, blocking current, snubber elements, holding current, on/off resistance. Depending on the user's requirement, there is also an option to select the precision functionality, which allows the user to compensate for errors due to digital implementation of the model during the state switching as a function of time step. The GTO thyristor turns on when the applied anode-cathode voltage is greater than forward voltage and a positive pulse signal is present at the gate input (g > 0). When the gate signal is set to 0, the GTO thyristor starts to block but its current does not stop instantaneously.
The model also includes an option to enable Fail reset mode which produces a signal if the diode has reached its normal or reverse breakdown voltage or if an untimely firing had happened.
Mask and Parameters
General
| Name | Description | Unit | Variable = {Possible Values} |
|---|---|---|---|
| Vmin | Forward voltage drop | V | {[0,1e12]} |
| Ropen | Open state resistance | Ohm | {(0,1e12]} |
| Rclose | Closed state resistance | Ohm | {(0,1e12]} |
| Rsnubber | Snubber resistance | Ohm | {[0,1e12]} |
| Csnubber | Snubber capacitance | F | {[0,1e12]} |
| Control type | External Input pins: Schematic control signal; the received integer is converted to a binary string where each digit corresponds to a phase External Input sensors: Target digital inputs |
Advanced
| Name | Description | Unit | Variable = {Possible Values} | |
|---|---|---|---|---|
| Fail reset | Fail reset | {Enable, Disable} | ||
| Precision valve | Enable: Enables recalculation of the state switch command using exact time between steps (as percentage of time step) Disable: does not use precision valve | {Enable, Disable} | ||
| Imin | Holding current | A | {[0,1e12]} | |
| Fbov | Forward break over voltage | V | {[0,1e12]} | |
| Rbov | Reverse break over voltage | V | {[0,1e12]} | |
Ports, Inputs, Outputs and Signals Available for Monitoring
Ports
| Name | Description |
|---|---|
| Net_1 | Network connection |
| Net_2 | Network connection |
Inputs
| Name | Description |
|---|---|
| D | Delay used for precision valves |
| P | Binary coded firing pulses |
Outputs
None
Sensors
| Name | Description | Unit |
|---|---|---|
| D | Delay used for precision valve, measured from changing point to current time step | s |
| FailSig | Fail reset signal | |
| I | Diode current | A |
| Delay | Delay due to forward voltage drop | s |
| Delay12 | Delay in forward GTO Thyristor mode | s |
| State12 | Diode state | |
| P | Binary coded firing pulses | |
| DelayExt12 | Delay for external trigger | s |
| Cmd12 | Signal state command | |
| CmdExt12 | Signal state external command |