Class CascadeControllerStructure

java.lang.Object

neqsim.process.controllerdevice.structure.CascadeControllerStructure

All Implemented Interfaces:

Serializable, ControlStructureInterface

public class CascadeControllerStructure
extends Object
implements ControlStructureInterface

Cascade control structure where a primary controller sets the set-point of a secondary controller. The output from the secondary controller becomes the final control signal applied to the process.

Author:

esol

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
private boolean	isActive
private double	output
private final ControllerDeviceInterface	primaryController
private final ControllerDeviceInterface	secondaryController
private static final long	serialVersionUID

Constructor Summary

Constructors

Constructor	Description
CascadeControllerStructure(ControllerDeviceInterface primaryController, ControllerDeviceInterface secondaryController)	Create a cascade control structure.

Method Summary

Modifier and Type	Method	Description
double	getOutput()	Get resulting output signal from the control structure.
boolean	isActive()	Check whether the control structure is currently active.
void	runTransient(double dt)	Execute one transient calculation step.
void	setActive(boolean isActive)	Enable or disable the entire control structure.

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

serialVersionUID

private static final long serialVersionUID

See Also:

• Constant Field Values

primaryController

private final ControllerDeviceInterface primaryController

secondaryController

private final ControllerDeviceInterface secondaryController

output

private double output

isActive

private boolean isActive

Constructor Details

CascadeControllerStructure

public CascadeControllerStructure(ControllerDeviceInterface primaryController,
 ControllerDeviceInterface secondaryController)

Create a cascade control structure.

Parameters:

primaryController - outer loop controller

secondaryController - inner loop controller

Method Details

runTransient

public void runTransient(double dt)

Execute one transient calculation step.

Specified by:

runTransient in interface ControlStructureInterface

Parameters:

dt - time step in seconds

getOutput

public double getOutput()

Get resulting output signal from the control structure.

Specified by:

getOutput in interface ControlStructureInterface

Returns:

control signal

setActive

public void setActive(boolean isActive)

Enable or disable the entire control structure.

Specified by:

setActive in interface ControlStructureInterface

Parameters:

isActive - set true to enable

isActive

public boolean isActive()

Check whether the control structure is currently active.

Specified by:

isActive in interface ControlStructureInterface

Returns:

true if active