Busbar
Connecting bus for flow distribution analysis.
blockType: AcausalElectricPowerSystems.ConnectorsReferences.Busbar
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Path in the library: |
Description
Block Busbar It is a connector for flow distribution analysis. Use this unit with three-phase networks that are compatible with starting from a steady-state sinusoidal mode. For more information, see Calculation of flow distribution in three-phase electric networks using blocks of the Engee physical modeling library.
If the model is compatible with starting from the steady state sinusoidal mode and in the block Solver Configuration the option is enabled Start simulation from steady state, then the block will perform an accurate calculation of the initial values. Starting from the second step of the simulation, the unit will calculate the approximate values of voltage, phase, active and reactive power. These values can be viewed using the additional measuring ports of the unit. The degree of approximation depends on the balance of the system and the level of harmonics present.
Ports
Conserving
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~1
—
three-phase connection 1
electricity
Details
A non-directional three-phase port connected to the first three-phase connection.
| Program usage name |
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~2
—
three-phase connection 2
electricity
Details
A non-directional three-phase port connected to a second three-phase connection.
Dependencies
To use this port, set the parameter Number of connections meaning 2, 3 or 4.
| Program usage name |
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#
~3
—
three-phase connection 3
electricity
Details
A non-directional three-phase port connected to a third three-phase connection.
Dependencies
To use this port, set the parameter Number of connections meaning 3 or 4.
| Program usage name |
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~4
—
three-phase connection 4
electricity
Details
A non-directional three-phase port connected to the fourth three-phase connection.
Dependencies
To use this port, set the parameter Number of connections meaning 4.
| Program usage name |
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Output
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V
—
voltage
scalar
Details
The port connected to the voltage measurement. The value is indicated in relative units, i.e. the RMS value of the interfacial voltage divided by Rated busbar voltage (phase-to-phase RMS).
Dependencies
To use this port, check the box Measurement ports.
| Data types |
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| Complex numbers support |
No |
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δ
—
phase
scalar
Details
The port connected to the voltage phase measurement.
Dependencies
To use this port, check the box Measurement ports.
| Data types |
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| Complex numbers support |
No |
#
P1
—
Active power 1
scalar
Details
The value of the active power flowing into the port ~1, in Watts.
Dependencies
To use this port, check the box Measurement ports, and for the parameter Number of connections set the value 2, 3 or 4.
| Data types |
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| Complex numbers support |
No |
#
Q1
—
Reactive power 1
scalar
Details
The value of the reactive power flowing into the port ~1, in VAr.
Dependencies
To use this port, check the box Measurement ports, and for the parameter Number of connections set the value 2, 3 or 4.
| Data types |
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| Complex numbers support |
No |
#
P2
—
active power 2
scalar
Details
The value of the active power flowing into the port ~2, in Watts.
Dependencies
To use this port, check the box Measurement ports, and for the parameter Number of connections set the value 2, 3 or 4.
| Data types |
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| Complex numbers support |
No |
#
Q2
—
Reactive power 2
scalar
Details
The value of the reactive power flowing into the port ~2, in VAr.
Dependencies
To use this port, check the box Measurement ports, and for the parameter Number of connections set the value 2, 3 or 4.
| Data types |
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| Complex numbers support |
No |
#
P3
—
Active power 3
scalar
Details
The value of the active power flowing into the port ~3, in Watts.
Dependencies
To use this port, check the box Measurement ports, and for the parameter Number of connections set the value 3 or 4.
| Data types |
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| Complex numbers support |
No |
#
Q3
—
Reactive power 3
scalar
Details
The value of the reactive power flowing into the port ~3, in VAr.
Dependencies
To use this port, check the box Measurement ports, and for the parameter Number of connections set the value 3 or 4.
| Data types |
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| Complex numbers support |
No |
#
P4
—
Active power 4
scalar
Details
The value of the active power flowing into the port ~4, in Watts.
Dependencies
To use this port, check the box Measurement ports, and for the parameter Number of connections set the value 4.
| Data types |
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| Complex numbers support |
No |
#
Q4
—
Reactive power 4
scalar
Details
The value of the reactive power flowing into the port ~4, in VAr.
Dependencies
To use this port, check the box Measurement ports, and for the parameter Number of connections set the value 4.
| Data types |
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| Complex numbers support |
No |
Parameters
Parameters
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Number of connections —
number of connected ports
1 | 2 | 3 | 4
Details
The number of connected ports available in this block.
| Values |
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| Default value |
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| Program usage name |
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| Evaluatable |
No |
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Rated busbar voltage (phase-to-phase RMS) —
rated bus voltage
V | uV | mV | kV | MV
Details
The nominal effective value of the bus line voltage.
| Units |
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| Default value |
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| Program usage name |
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| Evaluatable |
Yes |
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Network frequency —
network frequency
Hz | kHz | MHz | GHz
Details
The frequency of the connected network.
| Units |
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| Default value |
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| Program usage name |
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| Evaluatable |
Yes |
# Measurement ports — access to measuring ports
Details
Display of output ports for measuring voltage, phase, active and reactive power values.
Dependencies
Ports V, δ are displayed only when this checkbox is selected.
Ports P1, P2, P3, P4, Q1, Q2, Q3 and Q4 are displayed only when this checkbox is selected and provided that for the parameter Number of connections the value is set 2, 3 or 4.
| Default value |
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| Program usage name |
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| Evaluatable |
No |