Selects the type of implementation (inside CPU or FPGA). This parameter cannot be changed online and must be set according to the MMCValves Block and MMC Valves Low Level Control Block in the model. If the model type does not match in the three blocks, the user will get messages of error saying that some signals are not found.
Since the type of Model cannot be changed on the MMCValves Block and MMC Valves Low Level Control Block once the model has been compiled it means that each time this parameter needs to be changed the whole model must be recompiled.

Selects the type of model to be used in the CPU: Average Model (AVM)  or Switching Function Model (SFM). NB: This parameter must match the value set on the corresponding MMC Valves block and thus it cannot be changed online. The change of this parameter requires to recompile the model.

Each of the SMs has a parallel resistance to the capacitor. This parameter sets its value.

>=0 and <=50

This parameter enables the pulses on the corresponding MMC Valves Low Level control block. When the parameter is unchecked, the Low Level Control sets all IGBTs in all the SMs to remain in the OFF state.

This parameter sets different modes for the behavior on the SM capacitors.  The first option is used for normal operation while the rest of options can be used for debugging.

• 0: Normal operation → when this option is selected, the SM capacitors behave normally. It means they are charged or discharged according to the direction of current and control signals
• 1: Vcap reset to 0 → this option forces the SM capacitors to 0 volts bypassing the control orders and not taking into account the valve current.  The voltage is kept at 0 during all the time this option is selected.
• 2: Vcap use average value → this option forces the SM capacitor voltages to follow the average value of all the SMs in the valve, i.e. ΣVc / Nsm where Nsm is the number of SMs on each valve
• 3: Vcap reset to fix value → this option forces the SM capacitors to a fixed value bypassing the control orders and not taking into account the current.  The voltage is kept at this value during all the time this option is selected. 

{0: normal operation,

1: Vcap reset to 0,

2: Vcap use average value,

3: Vcap reset to fix value}

CD-SM Options :

G5 ON/OFF

This option controls the behavior of the switch S5 in the case of Clamped Double SM. It enables the gating signal to control this switch or fixes it as always OFF.

Behavior after SM fault :

Keep Cell short-circuit upon error

This parameter allows to select the type of Low Level Control to be used in the corresponding MMC Valves Low Level Control Block. When checked, the Pulse-Width-Modulation (PWM) modulation is used, when unchecked the Nearest-Level-Control (NLC) is used.

VBC mode

This parameter allows to select the type of balancing algorithm to be used in the corresponding MMC Valves Low Level Control Block. The user can select between two options:

• mode 1: switching the cell of maximum/minimum Vc
• mode 2: using sorting method

{mode 1: switching the cell of maximum/minimum Vc,

mode 2: using sorting method}

This parameter is only available if VBC mode is chosen as maximum/minimum method. It sets the maximum deviation allowed for the SM capacitor voltages.

IGBT dead-time (p.u. of Ts, [0,1))

This parameter sets the dead-time in the corresponding MMC Valves Low Level Control Block to generate the gating signals of complementary switches on each SM. The value is set as a percentage of the time step.

Sets the nominal capacitance for each of the SM capacitors in the valves. The same value is applied to all the SMs in the corresponding MMC Valves block. However, the SMs can have variations around this value if discrepancies are used. See CR discrepancy tab.

Each of the SMs has two parallel resistances to the capacitor. One for normal discharge and one for fast discharge. The fast discharge resistance is not always in use. It can be activated with the option Fast discharge in the Operation tab.

The resistance values are set in a vector with two elements. The first element gives the resistance value for the normal discharge and the second one, the resistance value for the fast discharge.

The same value is applied to all the SMs in the corresponding MMC Valves block. However, the SMs can have variations around this value if discrepancies are used. See CR discrepancy tab.

Sets the SM capacitor base voltage

SM groups

{0: Half Bridge (HB-SM),

1; Full Bridge (FB-SM),

2: Clamped-Double (CD-SM),

3: T-type (T-SM)}

Each one of the valves can have up to three different type of SMs. They are organized by groups. This parameter sets the number of SMs inside the group.

When checked, this parameter enables the fast discharge resistor on the SMs.

Interval in μs of the measurements (e.g. capacitor voltages,  valve current , etc) packets being sent out from the SM model to the internal or external controller.

This parameter sets different modes for the behavior of the SM capacitors.  The first option is used for normal operation while the rest of options can be used for debugging.

• 0: Normal operation → when this option is selected, the SM capacitors behave normally. It means they are charged or discharged according to the direction of current and control signals
• 1: Vcap reset to 0 → this option forces the SM capacitors to 0 volts bypassing the control orders and not taking into account the valve current.  The voltage is kept at 0 during all the time this option is selected.
• 2: Vcap use average value → this option forces the SM capacitor voltages to follow the average value of all the SMs in the valve, i.e. ΣVc / Nsm where Nsm is the number of SMs on each valve
• 3: Vcap reset to fix value → this option forces the SM capacitors to a fixed value bypassing the control orders and not taking into account the valve current.  The voltage is kept at this value during all the time this option is selected. 

{0: normal operation,

1: Vcap reset to 0,

2: Vcap use average value,

3: Vcap reset to fix value}

[0,4]

When this option is checked, the current on the capacitors is forced to zero. This prevents the SM capacitors to be discharged or charged, no matter what is the control signal.

This option controls the behavior of the switch S5 in the case of Clamped Double SM. Three options are available:

• 0: disable
• 1: enable
• 2: by protection signal

{0: disable,

1: enable,

2: by protection signal}

It sets the source of the gating signal at the output of the controller inside the FPGA, either generated in CPU and send to the FPGA or generated by the low level control algorithm implemented in the FPGA.

{0: gate signal from CPU,

1: embedded VBC in FPGA}

Determines which gating signals for the SMs are sent from the CPU. In Related mode (checked) only the gating signals for switch S1 in the case of HB-SMs are sent.  In the case of FB-SMs, CD-SM and T-type SMs, only the signals for switches S1 and S3 are sent.  The rest of the signals are computed following the next logic:

• HB-SM → S2 is the complementary of S1, i.e. g2=NOT(g1);
• FB-SM and CD-SM → S2 is the complementary of S1, and S3 is the complementary of S4, i.e. g2=NOT(g1) and g3=NOT(g4);
• T-type SM → g2=NOR(g1,g3), g4=g3
  
  

In full mode (unchecked), all the gating signals are sent.

In measurement packet, positive current direction is defined as charging SM capacitor if this option is not checked. Otherwise, positive current discharge SM capacitor.

This parameter is only available if the Level 1 is enabled. Sets the threshold for the overvoltage detection of Level 1. If the capacitor voltage exceeds this value the overvoltage signal becomes true.

This option sets which SM in a valve is the 1st SM being displayed. For an input x, the first SM to be displayed is 2*x. For example if Number of SMs to display=5 and SM offset=2 the SMs to be displayed are SM4 to SM14.

If checked, this option enables SM states being sent from FPGA to CPU for monitoring

{0: Valve 0,

1: Valve 1,

...,

10: Valve 3,

11: Valve 11}

This parameter sets the valve data to be monitored. The options are:

• Vcap max min values → if selected, the minimum and maximum SM capacitor voltages are monitored for each valve
• Total SM number that →with this option, the number of SMs that accomplish certain condition are scoped. the possible options are set in the Total SM number that parameter.
• Valve state and...  → this option allows to monitor the valve state and also the total number of SMs that accomplish the condition described in the Total SM number with parameter.
• Reserved → this option is reserved for developers

{0: Vcap max min values ,

1: Total SM number that,

2: Valve state and... ,

3: reserved}

This parameter is only available if the Valve info showing parameter is set as "Total SM number that". It sets the condition of the SMs to show the total number that accomplish it. The possible options are:

• g1 is ON
• g2 is ON
• g3 is ON
• g4 is ON

{0: g1 is ON,

1: g2 is ON,

2: g3 is ON,

3: g4 is ON}

This parameter is only available if the Valve info showing parameter is set as "Valve state and...". It sets the condition of the SMs to show the total number that accomplish it. The possible options are:

• 0: g1 open circuit fault
• 1: g1 short circuit fault
• 2: g2 open circuit fault
• 3: g2 short circuit fault
• 4: g3 open circuit fault
• 5: g3 short circuit fault
• 6: g4 open circuit fault
• 7: g4 short circuit fault
• 8: bypass breaker being closed
• 9: SM deactivated
• 10: Vcap overvoltage level_1
• 11: Vcap overvoltage level_1
• 12: Vcap undervoltage
• 13: capacitor short circuit fault
• 14: reserved
• 15: reserved
• 16: any of above-mentioned conditions

{0: g1 open circuit fault,

1: g1 short circuit fault,

2: g2 open circuit fault,

3: g2 short circuit fault,

4: g3 open circuit fault,

5: g3 short circuit fault,

6: g4 open circuit fault,

7: g4 short circuit fault,

8: bypass breaker being closed,

9: SM deactivated,

10: Vcap overvoltage level_1,

11: Vcap overvoltage level_1,

12: Vcap undervoltage,

13: capacitor short circuit fault,

14: reserved,

15: reserved,

16: any of above-mentioned conditions}

This parameter sets how the faults generated on the block connected to the input FaultSet are assigned to the SMs in the valves. The possible options are :

• 0: No fault → Does not assign faults to any SM.
• 1: fault on valve 0 only → This option assigns the fault only to the SMs in the valve 0 (first valve).
• 2: identical fault on all valves → This option assigns the same fault only to all the valves
• 3: fault on different valves → This option assigns different faults to different valves. How this is assigned is set in the parameter Valve0 to Valve11. 

{0: No fault, 

1: fault on valve 0 only,

2: identical fault on all valves,

3: fault on different valves}

Sets if the fault type "Fault 0"

Sets the range and resolution for the discrepancies between SMs in the same valve. The available options are:

• 0: No discrepancy
• 1: max error +/-1 p.u. resolution 0.78%
• 2: max error +/-0.5 p.u. resolution 0.39%
• 3: max error +/-0.25 p.u. resolution 0.2%

Depending on the option no discrepancy is applied to the SMs or the values taken from the Parameter discrepancy data are taken into account approximating to the nearest acceptable value according to the resolution and maximum error settings.

{0: No discrepancy , 

1: fault on valve 0 only,

2: max error +/-0.5 p.u. resolution 0.39%,

3: max error +/-0.25 p.u. resolution 0.2%}

Applies the corresponding pattern from the Parameter discrepancy data matrix to the valve. The user can select one from the 12 possible patterns. If the discrepancy matrix has less columns than the selected pattern, no discrepancy is applied.

The selected pattern is applied to the first n SMs in the valve, being n the number of rows in the discrepancy matrix.  The rest of SMs in the valve are set with the nominal value.

{0: no discrepancy,

1: parameter discrepancy pattern1,

2: parameter discrepancy pattern2,

3: parameter discrepancy pattern3,

4: parameter discrepancy pattern4,

5: parameter discrepancy pattern5,

6: parameter discrepancy pattern6,

7: parameter discrepancy pattern7,

8: parameter discrepancy pattern8,

9: parameter discrepancy pattern9,

10: parameter discrepancy pattern10,

11: parameter discrepancy pattern11,

12: parameter discrepancy pattern12}

This port is only visible if the Show fault set port parameter has been checked. It allows to set faults in the SMs in the FPGA.

This port is only visible if the Show external SM gate set port parameter has been checked. It allows to send SM gating signals to the FPGA from the console.