Input Type

Type of Input (Reference from Input Types Table below)

-

A1, A2, A3, A4, A5, A6

Notch filter Parameters

-

T1, T3

Lead compensating time constants

s

T2, T4

Lag compensating time constants

s

T5, T6

Washout time constant

s

Ks

Stabilizer gains

-

Lsmax

Stabilizer maximum output

pu

Lsmin

Stabilizer minimum output

pu

Vcl

Stabilizer input Vct lower cutoff threshold

pu

Vcu

Stabilizer input Vct upper cutoff threshold

pu

1

Rotor Speed (pu)

Reference speed (pu) w* of the Syn. generator.

2

Bus frequency (pu)

Reference frequency (pu) f* of the Syn. generator.

3

Generator electrical power on MBASE base (pu)

Reference Electrical power output (pu) Pe0* of the syn. generator.

4

Generator accelerating power (pu) = Pm – Pe0

Reference input = 0

5

Bus voltage (pu)

Reference voltage (pu) Vt*

6

Derivative of pu bus voltage

Reference input = 0

Input Reference

Reference to the input

-

Input

The input is one of the following type:

1. Rotor Speed (pu)

2. Bus frequency (pu)

3. Generator Electrical Power in Gen MVA Base (pu)

4. Generator Accelerating Power (pu)

5. Bus Voltage (pu)

6. Derivative of pu bus voltage.

pu

Vct

Compensator terminal voltage of a remote bus for inputs 2, 5 & 6. This may be neglected if the threshold voltages Vcl & Vcu are zero.

pu

Vs

Power system stabilizer model output

pu