Description
Similar to the thyristor model, a GTO+diode is modeled as a thyristor with an internal diode in shunt. The switch of the GTOis controlled by a logical signal depending on the terminal voltage, current, and the gating signal. The diode protects the semiconductor device by providing a conduction path for reverse current.
The model also provides a signal Failsig which shows if the block has reached its normal or reverse breakdown voltage or if an untimely firing had happened. The model also has an option to be controlled from external signals and an option to enter the precision delay D.
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.
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]} | |
| Ibreak | Maximum breakable 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 |
| State12 | Diode state |