Engee documentation

Gain Scheduled Lead-Lag

An integrating correction device with variable parameters.

gain scheduled lead lag

Description

The Gain Scheduled Lead-Lag block implements an integrating correction device (lead-lag compensator).

The transfer function of the correcting device is as follows

where and are time constants of the correcting device, s.

The time constants may change during simulation. Their values may depend on flight conditions or operating point. To form them you can use the block n-D Lookup Table.

Ports

Input

e - input signal
scalar

Input signal.

Data types: Float64.

a - time constant of numerator
scalar

Time constant of the numerator of the correcting device, s.

Data types: Float64.

b - denominator time constant
scalar

Time constant of the denominator of the correcting device, s.

Data types: Float64.

Output

u - output signal
scalar

Output signal.

Data types: Float64.

Parameters

Initial state, x_initial - initial internal state
0.0 (by default) | vector

The initial internal state, given as a vector, for the x_initial filter. Given this initial state, the initial output signal is specified as follows^:

.

Additional options

C code generation: Yes