P-controller AVR

ARV-P excitation regulator.

blockType: SubSystem

Path in the library:

/Physical Modeling/Electrical/Control/SM Control/P-controller AVR

Description

Block P-controller AVR It is an excitation regulator that implements the proportional voltage control law of the generator and provides current compounding of the stator. This type of regulator is usually used to control slow-acting excitation systems (electric and high-frequency).

Block P-controller AVR It can be used as an excitation regulator in a synchronous generator model with a control system, which is shown in the diagram.

p controller avr 2

Mathematical model P-controller AVR shown in the diagram.

p controller avr 1

On the presented diagram

— time delay constant of the voltage channel;
— current channel gain;
— voltage channel gain;
— output voltage of the automatic excitation regulator;
— voltage at the terminals of the generator;
— the value of the voltage setpoint;
— generator stator current;
— the setpoint of the generator stator current.

Ports

Entrance

# I_ref is the input value of the generator stator current setpoint

+ scalar

Details

The input value of the generator stator current setpoint in relative units.

Типы данных	`Float64`
Support for complex numbers	None

# V_ref is the input value of the generator voltage setpoint

+ scalar

Details

The input value of the generator voltage setpoint in relative units.

Типы данных	`Float64`
Support for complex numbers	None

# I_d is the input value of the generator current along the d axis

+ scalar

Details

The input value of the generator current along the d axis in dq0 coordinates in relative units.

Dependencies

To use this port, check the box Enable d-q voltage and current ports.

Типы данных	`Float64`
Support for complex numbers	None

# I_q is the input value of the generator current along the q axis

+ scalar

Details

The input value of the generator current along the q axis in dq0 coordinates in relative units.

Dependencies

To use this port, check the box Enable d-q voltage and current ports.

Типы данных	`Float64`
Support for complex numbers	None

# I is the full input value of the generator current

+ scalar

Details

The full input value of the generator current.

Dependencies

To use this port, uncheck the box. Enable d-q voltage and current ports.

Типы данных	`Float64`
Support for complex numbers	None

# V_q 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 and current ports.

Типы данных	`Float64`
Support for complex numbers	None

# V_d 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 and current ports.

Типы данных	`Float64`
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 and current ports.

Типы данных	`Float64`
Support for complex numbers	None

Output

# V_r is the output voltage value of the automatic excitation regulator

+ scalar

Details

The output voltage value of the automatic excitation regulator, in relative units.

Типы данных	`Float64`
Support for complex numbers	None

Parameters

Main

# Voltage regulator gain K0v — voltage channel gain

Details

The gain on the voltage channel.

Default value	`10.0`
Program usage name	`K0_v`
Evaluatable	Yes

# Сurrent regulator gain K0i — current channel gain

Details

The gain on the current channel.

Default value	`0.7`
Program usage name	`K0_i`
Evaluatable	Yes

# Voltage branch time constant T1, s — the time constant of the voltage channel delay

Details

The time constant of the voltage channel delay, in seconds.

Default value	`2.0`
Program usage name	`T1`
Evaluatable	Yes

# Voltage feedback limits [VFmax VFmin], pu — limits of the output value of the voltage channel

Details

The maximum and minimum output value of the voltage channel in relative units.

Default value	`[2.0 0.0]`
Program usage name	`voltage_branch_limits`
Evaluatable	Yes

Voltage And Current Ports

# Enable d-q voltage and current ports — activation of input voltage and current ports of the generator along the d and q axes

Details

If this option is checked, the unit uses the input ports V_d, V_q, I_d, I_q. If the checkbox is unchecked, instead of the d- and q-components, the unit uses the ports V and I to transmit the full voltage and current values.

The check box is checked By default.

Default value	`true (switched on)`
Program usage name	`enable_d_q_voltage_current`
Evaluatable	Yes

Initial Values

# Initial condition of the regulator voltage, pu — the initial value of the voltage regulator

Details

The initial value of the voltage regulator , in relative units. The initial value is set for the voltage channel and the current channel value is added to it during the simulation.

Default value	`1.0`
Program usage name	`voltage_regulator_start`
Evaluatable	Yes

Literature

A.A. Yurganov, V.A. Kozhevnikov. Regulation of excitation of synchronous generators.
V.P. Shoiko. Automatic regulation in electrical systems.