Class ClosedLoopUnitIdentifier

Identification that attempts to identify a unit model jointly with estimating the additive signal acting on the output(disturbance signal) yet is counter-acted by closed-loop (feedback)control, such as with PID-control.

The approach requires combining information in the measured output signal with the information in the manipulated variable(determined by active control) that is inputted into the process

In order to accomplish this estimation, the process model and the disturbance signal are estimated together.

Inheritance

object

ClosedLoopUnitIdentifier

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Namespace: TimeSeriesAnalysis.Dynamic

Assembly: TimeSeriesAnalysis.dll

Syntax

public class ClosedLoopUnitIdentifier

Methods

ClosedLoopSim(UnitDataSet, UnitParameters, PidParameters, double[], string)

Closed-loop simulation of a unit model and pid model, for a given unit data set

Declaration

public static bool ClosedLoopSim(UnitDataSet unitData, UnitParameters modelParams, PidParameters pidParams, double[] disturbance, string name = "")

Parameters

Type	Name	Description
UnitDataSet	unitData	unit dataset for simulation
UnitParameters	modelParams	paramters or UnitModel
PidParameters	pidParams	parameters of PidModel
double[]	disturbance	disturbance vector
string	name	optional name used for plotting

Returns

Type	Description
bool

Identify(UnitDataSet, PidParameters, int)

Identify the unit model of a closed-loop system and the distrubance (additive output signal)

Declaration

public static (UnitModel, double[]) Identify(UnitDataSet dataSet, PidParameters pidParams = null, int pidInputIdx = 0)

Parameters

Type	Name	Description
UnitDataSet	dataSet	the unit data set, containing both the input to the unit and the output
PidParameters	pidParams	if the setpoint of the control changes in the time-set, then the paramters of pid control need to be given.
int	pidInputIdx	the index of the PID-input to the unit model

Returns

Type	Description
(UnitModel, double[])	The unit model, with the name of the newly created disturbance added to the additiveInputSignals

Remarks

Currently always assumes that PID-index is first index of unit model(can be improved)