High-Gain AVR
The ARV-SD excitation regulator.
blockType: SubSystem
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Path in the library: |
Description
Block High-Gain AVR It is an excitation regulator that implements the proportional-differential voltage control law of the generator according to the following parameters:
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Voltage deviation from the setpoint;
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Rate of voltage change;
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Deviations of the voltage frequency from the nominal;
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Rate of voltage frequency change;
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The rate of change of the excitation current.
Block High-Gain AVR It can be used as an excitation regulator in a synchronous generator model with a control system, which is shown in the diagram.
Mathematical model High-Gain AVR shown in the diagram.
On the presented diagram
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— generator stator voltage;
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— the value of the voltage setpoint;
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— the reactive current of the generator stator;
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— the proportion of compensation for the reactance of the transformer;
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— frequency deviation of the generator voltage;
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— rotor current;
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, , , , — gain factors in voltage regulation and stabilization channels.
Ports
Entrance
# Ireactive — input value of the generator’s reactive current
+
scalar
Details
The input value of the generator’s reactive current in relative units.
| Типы данных |
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| Support for complex numbers |
None |
# Vref is the input value of the generator voltage setpoint
+
scalar
Details
The input value of the generator voltage setpoint in relative units.
| Типы данных |
|
| Support for complex numbers |
None |
# Ifd is the input value of the excitation current of the generator
+
scalar
Details
The input value of the excitation current in relative units.
| Типы данных |
|
| Support for complex numbers |
None |
# Δf is the input value of the frequency deviation of the generator voltage
+
scalar
Details
The input value of the frequency deviation of the generator voltage in relative units.
| Типы данных |
|
| Support for complex numbers |
None |
# Vd is the input voltage value of the generator along the d axis
+
scalar
Details
The input voltage value of the generator along the d axis in dq0 coordinates in relative units.
Dependencies
To use this port, check the box Enable d-q voltage ports.
| Типы данных |
|
| Support for complex numbers |
None |
#
Vq is
the input voltage value of the generator along
the q + axis
scalar
Details
The input voltage value of the generator along the q axis in dq0 coordinates in relative units.
Dependencies
To use this port, check the box Enable d-q voltage ports.
| Типы данных |
|
| Support for complex numbers |
None |
# V is the full input voltage of the generator
+
scalar
Details
The full input voltage value of the generator.
Dependencies
To use this port, uncheck the box. Enable d-q voltage ports.
| Типы данных |
|
| Support for complex numbers |
None |
Output
# Vr is the output voltage value of the automatic excitation regulator
+
scalar
Details
The output voltage of the automatic excitation regulator in relative units.
| Типы данных |
|
| Support for complex numbers |
None |
Parameters
Main
# Voltage error gain K0v — voltage deviation channel gain
Details
The gain factor for the voltage deviation channel.
| Default value |
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| Program usage name |
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| Evaluatable |
Yes |
# Voltage derivative gain K1v — Voltage change rate channel gain
Details
The gain factor for the voltage change rate channel.
| Default value |
|
| Program usage name |
|
| Evaluatable |
Yes |
# Field current derivative gain K1Ifd — gain factor for the channel of the rate of change of the excitation current
Details
The gain coefficient along the channel of the rate of change of the excitation current.
| Default value |
|
| Program usage name |
|
| Evaluatable |
Yes |
# Frequency error gain K0f — the gain factor for the voltage frequency deviation from the nominal value
Details
The gain factor for the channel deviation of the voltage frequency from the nominal.
| Default value |
|
| Program usage name |
|
| Evaluatable |
Yes |
# Frequency derivative gain K1f — Voltage frequency change rate gain channel
Details
The gain factor over the voltage frequency rate channel.
| Default value |
|
| Program usage name |
|
| Evaluatable |
Yes |
# Voltage derivative time constant T1, s — The delay time constant of the oscillator voltage change rate channel
Details
The delay time constant of the oscillator voltage change rate channel, in seconds.
| Default value |
|
| Program usage name |
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| Evaluatable |
Yes |
# Frequency error time constant T2, s — time delay constant of the voltage frequency deviation channel from the nominal value
Details
The delay time constant of the voltage frequency deviation channel, in seconds.
| Default value |
|
| Program usage name |
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| Evaluatable |
Yes |
# Frequency derivative time constant T3, s — time delay constant of the voltage frequency change rate channel
Details
The delay time constant of the voltage frequency change rate channel, in seconds.
| Default value |
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| Program usage name |
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| Evaluatable |
Yes |
# Frequency time constant T4, s — the delay time constant of the common frequency channel
Details
The delay time constant of the common frequency channel, in seconds.
| Default value |
|
| Program usage name |
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| Evaluatable |
Yes |
# Field current derivative time constant T5, s — channel delay time constant of the rate of change of the excitation current
Details
The time constant of the delay channel of the rate of change of the excitation current, in seconds.
| Default value |
|
| Program usage name |
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| Evaluatable |
Yes |
# Regulator time constant T6, s — the delay time constant of the common ARV channel
Details
The delay time constant of the common channel, in seconds.
| Default value |
|
| Program usage name |
|
| Evaluatable |
Yes |
# Сompensated transformer resistance Xcompounding, pu — the reactance of the transformer, compensated by the regulator
Details
The reactance of the transformer, compensated by the regulator, is set in relative units.
| Default value |
|
| Program usage name |
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| Evaluatable |
Yes |
# Voltage regulator limits [VRmax VRmin], pu — limits of the output voltage of the regulator
Details
The maximum and minimum output voltage of the regulator in relative units.
| Default value |
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| Program usage name |
|
| Evaluatable |
Yes |
Voltage Ports
# Enable d-q voltage ports — activation of generator voltage input ports along the d and q axes
Details
If this option is selected, the unit uses the input ports Vd and Vq If unchecked, instead of the d- and q-components, the unit uses port V to transmit the full voltage value.
The checkbox is checked by default.
| Default value |
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| Program usage name |
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| Evaluatable |
Yes |
Initial Values
# Initial condition of the regulator voltage Vr0, pu — the initial value of the voltage regulator
Details
The desired output value Vr of the voltage regulator at the initial moment of simulation.
| Default value |
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| Program usage name |
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| Evaluatable |
Yes |
# Reference voltage Vref, pu — voltage setpoint value
Details
The setpoint value of the voltage that will arrive at the port Vref at the initial moment of the simulation in order to obtain the desired initial value of the output Vr of the regulator.
| Default value |
|
| Program usage name |
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| Evaluatable |
Yes |
Machine Initial Values
# Initial condition of field current Ifd0, pu — the initial value of the excitation current of the generator
Details
The value of the excitation current of the generator that will arrive at the port Ifd at the initial moment of the simulation in order to obtain the desired initial value of the output Vr of the regulator.
| Default value |
|
| Program usage name |
|
| Evaluatable |
Yes |
# Initial condition of terminal voltage magnitude Vmag0, pu — the initial value of the voltage at the terminals of the generator
Details
The value of the voltage at the terminals of the generator that will arrive at the port V (or RMS Vd, Vq) at the initial moment of the simulation in order to obtain the desired initial value of the output Vr of the regulator.
| Default value |
|
| Program usage name |
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| Evaluatable |
Yes |
# Initial condition of terminal reactive current Ireactive0, pu — the initial value of the generator’s reactive current
Details
The value of the generator’s reactive current that will arrive at the Ireactive port at the initial moment of the simulation in order to obtain the desired initial output value Vr of the regulator.
| Default value |
|
| Program usage name |
|
| Evaluatable |
Yes |