SDP1 AEC#
Block appearance in REPEAT VISION#
Automatic excitation control (AEC) is a device that acts on the excitation system of synchronous machines to maintain the voltage in the electrical network at a given level.
Regulators of the ARV-SDP1 type currently make up the majority of “strong action” regulators used at power facilities of the SES/UES.[1]
According to the diagram (see Fig. 1 below) the mathematical model of the regulator is written as (1) :
where \(K_{1U}, K_{0f}, K_{1f}, K_{1If}\) are weighting coefficients, [V/V]. Their values depend linearly on the position of the switches.
Fig. 1. Structural diagram of the SDP1 AEC#
1. Properties#
Property |
Default Value |
Description |
Units of measurement |
|---|---|---|---|
Hard feedback channel coefficient |
1 |
– |
– |
Rotor current derivative gain |
5 |
– |
– |
Frequency gain |
2 |
– |
– |
Frequency derivative gain |
5 |
– |
– |
Voltage gain factor |
50 |
– |
– |
Voltage derivative gain |
5 |
– |
– |
Reactive current block coefficient 1 |
3 |
– |
– |
Reactive current block coefficient 2 |
-10 |
– |
– |
Time constant of the voltage block |
0.264 |
– |
s |
Voltage block gain |
2 |
– |
– |
Gain of the differentiating link of the voltage block |
0.264 |
– |
– |
Time constant of the differentiating link of the voltage block |
0.264 |
– |
s |
Block gain |
50 |
– |
– |
Minimum value of AEC voltage |
-6 |
– |
V |
Maximum value of AEC voltage |
6 |
– |
V |
2. Inputs and outputs#
Parameters |
Input/Output |
Description |
Units of measurement |
Port type |
|---|---|---|---|---|
Отклонение напряжения возбуждения |
Input |
– |
V |
Automation |
Excitation current deviation |
Input |
– |
A |
Automation |
Generator speed deviation |
Input |
– |
rpm |
Automation |
Deviation of reactive current of generator stator |
Input |
– |
A |
Automation |
Generator voltage deviation |
Input |
– |
V |
Automation |
Deviation of reactive current of a group of generators |
Input |
– |
A |
Automation |
Voltage AEC |
Output |
– |
V |
Automation |
In order to see the connection capabilities of the block, you need to go to page Description of block ports