RLC (Three-Phase)
Three-phase impedance.
Description
The RLC (Three-Phase) unit simulates three-phase impedance. Each of the three phases of impedance can include any combination of resistor ( ), capacitor ( ) and inductance coil ( ) connected in series or parallel. The impedance is phase symmetrical, i.e. the resistance, capacitance and inductance values of all phases are the same.
The values , and are set by the corresponding block parameters. Do not set the parameter values to zero or infinity to remove elements; instead, select the correct option for the Component structure parameter.
Block parameterization
The following table lists the block parameters for each component structure.
| Component structure | Basic parameters | Parameters of initial conditions |
|---|---|---|
|
Resistance |
No |
|
Inductance |
Initial current of the inductance coil ] |
|
Capacitance |
Initial capacitor voltage ] |
Series RL |
Resistance Inductance |
Initial current of the inductance coil ] |
Series RC |
Resistance Capacitance |
Initial capacitor voltage ] |
Series LC |
Inductance Capacitance |
Initial current of the inductance coil ] Initial capacitor voltage ] |
Series RLC |
Resistance Inductance Capacitance |
Initial current of the inductance coil ] Initial capacitor voltage ] |
Parallel RL |
Resistance inductance |
Initial current of the inductance coil ] |
Parallel RC |
Resistance Capacitance |
Initial capacitor voltage ] |
Parallel LC |
Inductance Capacitance |
Initial current of the inductance coil ] Initial capacitor voltage ] |
Parallel RLC |
Resistance Inductance Capacitance |
Initial current of the inductance coil ] Initial capacitor voltage ] |
Parameters
Main
Component structure - a combination of R, L and C
stem:[R (by default) | L | C | Series RL | Series RC | Series LC | Series RLC | Parallel RL | Parallel RC | Parallel LC | Parallel RLC
Sets the combination of resistor , capacitor and inductance coil , connected in series or parallel.
Resistance - resistance
`1.0 ohms (by default)
Resistance of each resistor.
Inductance - inductance
1e-3 Gn (by default)
The inductance of each coil.
Capacitance - capacitance
1e-6 F (By default)
Capacitance of each capacitor.
Parasitics
Parasitic series resistance, Ohm - parasitic series resistance
`0 Ohm (by default)
Represents small parasitic effects. The parameter value corresponds to the value of series resistance added to all capacitor instances in the load.
Parasitic parallel conductance, 1/Ohm - Parasitic parallel conductance
0 1/Ohm (by default).
Represents small parasitic effects. The parameter value corresponds to the parallel conductance value added to all instances of inductance coils in the load.
If you set the Component Structure parameter to one of the Series RL, Series LC or Series RLC values, the parasitic parallel conductance is coupled through the full branch of the unit.
Initial values
Initial value of current through inductors, [Ia Ib Ic] - initial values of coil currents
zeros(3) (by default)
Initial values of currents through inductor coils.
Initial value of voltage across capacitors, [Va Vb Vc] - initial values of voltage across capacitors
zeros(3) (by default)
Initial values of voltage across capacitors.