Description

Essentially, both of these models are identical, the TCR branch being a specific case of the TSC branch. Resistances R and r respectively represent ohmic losses in the capacitor and the reactor. One of these elements can be ignored by assigning a zero value to it in the control panel. The two resistances, the capacitor and the reactor form a type of black box. Hence, it is not possible to measure the voltage across one of the resistances or the reactor. However, the voltage across the capacitor is calculated and available as a signal. This is also the case for the voltages across the thyristors.

Table of Contents

Mask and Parameters

Parameters

Name	Description	Unit	Variable = {Possible Values}
Control Type	Control inputs to the block - External input pins or sensors
Precision Valve	Enable: Precision valve is used which corrects for any errors due to digitization Disable: Precision feature not used		{Enable, Disable}
Connections	Y ground; Y floating; Delta
r	Resistance in parallel with branch reactor	Ohm	{(0,1e12]}
L	Series inductance	H	{(0,1e12]}
R	Branch resistance	Ohm	{(0,1e12]}
C	Branch capacitance	F	{(0,1e12]}
Rsnubber	Snubber resistance	Ohm	{[0,1e12]}
Csnubber	Snubber capacitance	F	{[0,1e12]}
Ropen	Valve resistance when open	Ohm	{(0,1e12]}
Rclose	Valve resistance when closed	Ohm	{(0,1e12]}
Imin	Chopping current	A	{[0,1e12]}
Fbov	Forward break overvoltage	V	{[0,1e12]}
Rbov	Reverse break overvoltage	V	{[0,1e12]}
Tq	Time for the valve to stop conducting	s	{[0,1e12]}
Vmin	Minimum forward voltage across valve to conduct	V	{[0,1e12]}

Ports, Inputs, Outputs and Signals Available for Monitoring

Ports

Name	Description
Net_1	Network connection (supports only 3-phase connections)

Inputs

Name	Description
D	Delay used for the precision valve measured from changing point to current time step
P	Binary coded firing pulses

Outputs

None

Sensors

Name	Description	Unit
CMD12_x where (x= a,b,c)	Firing pulse of the positive valve in the x branch
CMD21_x where (y= a,b,c)	Firing pulse of the negative valve in the x branch
I_x where (x= a,b,c)	Current through the branch	A
STATE12_x(where x=a,b,c)	State of the positive valve in the x branch
STATE21_x(where x=a,b,c)	State of the negative valve in the x branch
D	Delay used for the precision valve measured from changing point to current time step	s
P	Binary coded firing pulses
DelayImpInt	Firing delay (as a fraction of calculation step) calculated by the internal command	s
DelayImpExt	Firing delay (as a fraction of calculation step) calculated by an external command	s
DelayImp	Firing delay (as a fraction of calculation step)	s
DelayImpUsed	Firing delay (as a fraction of calculation step)	s

HYPERSIM Documentation

Thyristor Controlled Reactor and Thyristor Switched Capacitor