At acquisition, the following signals are made available by the sensors:
- CMD12phase_TCR1_label: Firing pulse of the positive valve in the TCR inductive branch;
- CMD21phase_TCR1_label: Firing pulse of the negative valve in the TCR inductive branch;
- Iphase_TCR1_label: Current across the TCR inductive branch;
- STATE12phase_TCR1_label: State of the positive valve in the TCR inductive branch;
- STATE21phase_TCR1_label: State of the negative valve in the TCR inductive branch;
- VphaseTh_TCR1_label: Voltage across the valves in the TCR inductive branch;
- VCAPphase_TCR1_label: Voltage across the capacitor in the TCR inductive branch;
FAILSIGphase_TCR1_label
- CMD12phase_TSC1_label: Firing pulse of the positive valve in TSC capacitive branch no 1;
- CMD21phase_TSC1_label: Firing pulse of the negative valve in TSC capacitive branch no 1;
- Iphase_TSC1_label: Current across TSC capacitive branch no 1;
- STATE12phase_TSC1_label: State of the positive valve in TSC capacitive branch no 1;
- STATE21phase_TSC1_label: State of the negative valve in TSC capacitive branch no 1;
- VphaseTh_TSC1_label: Voltage across the valves in TSC capacitive branch no 1;
- VCAPphase_TSC1_label: Voltage across the capacitor in TSC capacitive branch no 1;
FAILSIGphase_TSC1_label
- CMD12phase_TSC2_label: Firing pulse of the positive valve in TSC capacitive branch no 2;
- CMD21phase_TSC2_label: Firing pulse of the negative valve in TSC capacitive branch no 2;
- Iphase_TSC2_label: Current across TSC capacitive branch no 2;
- STATE12phase_TSC2_label: State of positive valve in TSC capacitive branch no 2;
- STATE21phase_TSC2_label: State of negative valve in TSC capacitive branch no 2;
- VphaseTh_TSC2_label: Voltage across the valves in TSC capacitive branch no 2;
- VCAPphase_TSC2_label: Voltage across the capacitor in TSC capacitive branch no 2;
FAILSIGphase_TSC3_label
- CMD12phase_TSC3_label: Firing pulse of the positive valve in TSC capacitive branch no 3
- CMD21phase_TSC3_label: Firing pulse of the negative valve in TSC capacitive branch no 3;
- Iphase_TSC3_label: Current across TSC capacitive branch no 3;
- STATE12phase_TSC3_label: State of positive valve in TSC capacitive branch no 3;
- STATE21phase_TSC3_label: State of negative valve in TSC capacitive branch no 3;
- VphaseTh_TSC3_label: Voltage across the valves in TSC capacitive branch no 3;
- VCAPphase_TSC3_label: Voltage across the capacitor in TSC capacitive branch no 3;
FAILSIGphase_TSC3_label
- pulsePat_int_label: Signal containing the binary code representing the firing orders of the valves
- VSYNCphase_label: Voltage signal used by synchronization unit;
- DelayImpInt_ label: Firing delay (as a fraction of calculation step) calculated by the internal command of the static compensator
- DelayImpExt_ label: Firing delay (as a fraction of calculation step) calculated by an external command of the static compensator
- DelayImp_ label: Firing delay (as a fraction of calculation step) sent to the static compensator
- DelayImpUsed_ label: Firing delay (as a fraction of calculation step) used by the static compensator
- V_Ref_label: Voltage reference for the controller;
- B_Ref_label: Susceptance reference for the controller;
- Slope_label: Slope of the controller;
- Deblocked_label: Signal specifying that the firing pulses are blocked or not.
- TCC_Mode_label: Signal specifying that the TCC mode is enabled or disabled
- ManualMode_label: Signal specifying that the manual mode is enabled or disabled
- Period_label: Period of the network (inverse of the frequency)
- Frequency_label: Network frequency
- Alpha_TCR1_label: Firing angle of the TCR inductive branch
- wtphase_label: Phase angle of synchronization voltages
- V_Prim_label: Voltage measured by the system
- V_Error_label: Input of PI regulator of regulation unit
- B_SVC_label: Susceptance seen from primary side of transformer
- B_TSC_label: Capacitive susceptance required
- B_TCR_label: Inductive susceptance required
Static Compensator Control Panel
Figures 11 - 23 to 11 - 25 show respectively the first, second and third pages of the static compensator control panel.
Figure 11 - 26 shows the network used in this example. The test consists in applying a rising ramp from 0.75 to 1.25 pu to the source voltage.
Then a positive sequence reading is taken of the voltage on the transformer primary and of the current in the Rprim resistance to drawthe U-I dynamic curve of the system. The variation of the source voltage is done as a ramp over 10 seconds.
The following parameters are used:
- Static Compensator: Fault parameters, automatic mode at Vref = 1.0 pu
- Network at 735 kV, short-circuit power of 6000 MVA, quality factor of 10
- Transformer YD 735/16 kV, 333 MVA, leakage of 15%
- Load on primary = 200 MW
- Load on secondary = 500 kW
U-I Dynamic Curve of the Static Compensator