Rate Limiter

 

The Rate Limit block limits the rate of change of a signal. The rate of change is calculated by

 

 

where, u is the input signal, y is the output signal, is the current simulation time step, is the previous simulation time step. If rate is between the Rising rate parameter and the Falling rate parameter, the output signal is equal to the input signal.

If rate is greater than the Rising rate parameter, the output signal is calculated by

 

 

where, R is the Rising rate parameter.

If rate is less than the Falling rate parameter, the output signal is calculated by

 

 

where, F is the Falling rate parameter.

 

Dialog box

Figure 1  Rate Limiter dialog box

 

Parameters

Parameter(s)

Description

Rising rate

Enter the upper rate limit.

Falling rate

Enter the lower rate limit.

Initial condition

Enter the initial output signal

Sample time

Enter the time interval between samples.