com.interpss.dstab.controller.cml.block

Class TFunc2ndOrderBlock

java.lang.Object

com.interpss.dstab.controller.block.adapt.CMLStaticBlockAdapter

com.interpss.dstab.controller.block.adapt.CMLControlBlockAdapter

com.interpss.dstab.controller.block.adapt.CMLControlBlock1stOrderAdapter

com.interpss.dstab.controller.cml.block.TFunc2ndOrderBlock

All Implemented Interfaces:

com.hazelcast.nio.serialization.DataSerializable, ICMLBlock, ICMLControlBlock, ICMLStaticBlock

public class TFunc2ndOrderBlock
extends CMLControlBlock1stOrderAdapter

An implementation of 2nd order transfer function block Transfer Function: y = [ k / ( 1 + a s + b s^2 ) ] u Differential eqn dot(x1) = | 0 1 | |x1| + | 0 | u dot(x2) | -1/b -a/b | |x2| |k/b| y = [ 1 0 ] |x1| = x1 |x2| x2(0) = 0 x1(0) = k * u(0); y(0) = k * u(0);

Nested Class Summary

Nested classes/interfaces inherited from interface com.interpss.dstab.controller.block.ICMLStaticBlock

ICMLStaticBlock.StaticBlockType

Field Summary

Fields inherited from class com.interpss.dstab.controller.block.adapt.CMLControlBlock1stOrderAdapter

serialVersionUID

Constructor Summary

Constructors

Constructor and Description
TFunc2ndOrderBlock(double k, double a, double b) constructor
TFunc2ndOrderBlock(double k, double a, double b, double max, double min) constructor

Method Summary

Modifier and Type	Method and Description
void	eulerStep1(double u, double dt) Perform Euler step-1 calculation
void	eulerStep2(double u, double dt) Perform Euler step-2 calculation
java.lang.String	getState() get block state as a string for debug info
double	getU0() get the controller initial input u0, it should be always called after the intiState() call.
double	getY() get the controller output
boolean	initStateU0(double u0) Initial the controller state variables
boolean	initStateY0(double y0) Initial the controller state variables
java.lang.String	toString()

Methods inherited from class com.interpss.dstab.controller.block.adapt.CMLControlBlock1stOrderAdapter

getU, setDX_dt

Methods inherited from class com.interpss.dstab.controller.block.adapt.CMLControlBlockAdapter

getStateX, readData, setStateX, writeData

Methods inherited from class com.interpss.dstab.controller.block.adapt.CMLStaticBlockAdapter

debugInfo, getType, getU0, setParameter, setType

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.interpss.dstab.controller.block.ICMLStaticBlock

getU0, setParameter

Methods inherited from interface com.interpss.dstab.controller.block.ICMLBlock

debugInfo

Constructor Detail

TFunc2ndOrderBlock

public TFunc2ndOrderBlock(double k,
                          double a,
                          double b)

constructor

Parameters:

k -

a -

b -

TFunc2ndOrderBlock

public TFunc2ndOrderBlock(double k,
                          double a,
                          double b,
                          double max,
                          double min)

constructor

Parameters:

k -

a -

b -

max -

min -

Method Detail

getState

public java.lang.String getState()

Description copied from class: CMLControlBlock1stOrderAdapter

get block state as a string for debug info

Overrides:

getState in class CMLControlBlock1stOrderAdapter

initStateY0

public boolean initStateY0(double y0)

Description copied from interface: ICMLStaticBlock

Initial the controller state variables

Specified by:

initStateY0 in interface ICMLStaticBlock

Overrides:

initStateY0 in class CMLStaticBlockAdapter

Parameters:

y0 - output initial value.

initStateU0

public boolean initStateU0(double u0)

Description copied from interface: ICMLStaticBlock

Initial the controller state variables

Specified by:

initStateU0 in interface ICMLStaticBlock

Overrides:

initStateU0 in class CMLStaticBlockAdapter

Parameters:

u0 - input initial value.

getU0

public double getU0()

Description copied from interface: ICMLStaticBlock

get the controller initial input u0, it should be always called after the intiState() call.

Specified by:

getU0 in interface ICMLStaticBlock

Overrides:

getU0 in class CMLStaticBlockAdapter

Returns:

the inout variable u initial value

eulerStep1

public void eulerStep1(double u,
                       double dt)

Description copied from interface: ICMLStaticBlock

Perform Euler step-1 calculation

Specified by:

eulerStep1 in interface ICMLStaticBlock

Overrides:

eulerStep1 in class CMLControlBlock1stOrderAdapter

Parameters:

u - the input variable

dt - the time step

eulerStep2

public void eulerStep2(double u,
                       double dt)

Description copied from interface: ICMLStaticBlock

Perform Euler step-2 calculation

Specified by:

eulerStep2 in interface ICMLStaticBlock

Overrides:

eulerStep2 in class CMLControlBlock1stOrderAdapter

Parameters:

u - the input variable

dt - the time step

getY

public double getY()

Description copied from interface: ICMLStaticBlock

get the controller output

Specified by:

getY in interface ICMLStaticBlock

Overrides:

getY in class CMLControlBlock1stOrderAdapter

Returns:

the output variable y

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object