WOLFRAM SYSTEMMODELER

Integrator

Output the integral of the input signal with optional reset

Wolfram Language

In[1]:=
SystemModel["Modelica.Blocks.Continuous.Integrator"]
Out[1]:=

Information

This information is part of the Modelica Standard Library maintained by the Modelica Association.

This blocks computes output y as integral of the input u multiplied with the gain k:

         k
     y = - u
         s

It might be difficult to initialize the integrator in steady state. This is discussed in the description of package Continuous.

If the reset port is enabled, then the output y is reset to set or to y_start (if the set port is not enabled), whenever the reset port has a rising edge.

Parameters (5)

k

Value: 1

Type: Real

Description: Integrator gain

use_reset

Value: false

Type: Boolean

Description: =true, if reset port enabled

use_set

Value: false

Type: Boolean

Description: =true, if set port enabled and used as reinitialization value when reset

initType

Value: Modelica.Blocks.Types.Init.InitialState

Type: Init

Description: Type of initialization (1: no init, 2: steady state, 3,4: initial output)

y_start

Value: 0

Type: Real

Description: Initial or guess value of output (= state)

Connectors (4)

u

Type: RealInput

Description: Connector of Real input signal

y

Type: RealOutput

Description: Connector of Real output signal

reset

Type: BooleanInput

Description: Optional connector of reset signal

set

Type: RealInput

Description: Optional connector of set signal

Used in Examples (3)

PID_Controller

Modelica.Blocks.Examples

Demonstrates the usage of a Continuous.LimPID controller

SlewRateLimiter

Modelica.Blocks.Examples

Demonstrate usage of Nonlinear.SlewRateLimiter

ThreePhaseTwoLevel_PWM

Modelica.Electrical.PowerConverters.Examples.DCAC.MultiPhaseTwoLevel

Test of pulse width modulation methods

Used in Components (4)

PID

Modelica.Blocks.Continuous

PID-controller in additive description form

LimPID

Modelica.Blocks.Continuous

P, PI, PD, and PID controller with limited output, anti-windup compensation, setpoint weighting and optional feed-forward

LimitedPI

Modelica.Electrical.Machines.Examples.ControlledDCDrives.Utilities

Limited PI-controller with anti-windup and feed-forward

IdealDcDc

Modelica.Electrical.Machines.Examples.ControlledDCDrives.Utilities

Ideal DC-DC inverter