# US 2014/0156092 A1 · Automated adaptation of a power plant control

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- Number: US 2014/0156092 A1
- Document ID: US20140156092A1
- Status: Published application
- Kind: A1
- Application number: 14/232,280
- Filed: 2012-04-11
- Published: 2014-06-05
- Earliest claimed: 2011-07-13
- Assignees: Siemens Aktiengesellschaft
- Inventors: Julian Groganz; Joachim Rupp; Klaus Wendelberger
- Web page: https://patentgrep.com/patent/US20140156092A1

## CPC

- G05B 13/04: involving the use of models or simulators
- G05B 13/042: {in which a parameter or coefficient is automatically adjusted to optimise the performance}
- G05B: CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS (systems for controlling or regulating non-electric variables G05D; systems for regulating electric or magnetic variables G05F; control devices or systems insofar as characterised by mechanical features only G05G)

## Abstract

An automatic adaptation of a control of a technical system, in particular of a power plant, is provided. Control circuits are created for controlling the technical system, wherein at least one control circuit and a second control circuit are coupled using a decoupling member. The decoupling member has at least one adaptable parameter. The at least one adaptable parameter of the decoupling member is automatically adapted in an online operation of the technical system to an actual, dynamic process behavior of the technical system, i.e., automatic online adaptation.

## Claims

### Claim 1

A method for the automatic adaptation of a technical plant control,
in which control circuits are created for the control of the technical plant, in which at least a first control circuit and a second control circuit are decoupled using a decoupling element which has at least one adaptable parameter, and
the at least one adaptable parameter of the decoupling element is automatically adapted in an online operation of the technical plant to an actual dynamic process behavior of the technical plant, the method comprising:
measuring the actual dynamic process behavior of the technical plant,
determining a theoretical optimum process behavior of the technical plant through simulation using a model of the technical plant, and
modifying the at least one adaptable parameter of the decoupling element until the actual dynamic process behavior of the technical plant corresponds to the theoretical optimum process behavior of the technical plant in a predefinable scope or quality.

### Claim 2 (depends on 1)

The method for the automatic adaptation of a technical plant control as claimed in claim 1, wherein the decoupling element contains a derivative lag or delay element.

### Claim 3 (depends on 1)

The method for the automatic adaptation of a technical plant control as claimed in claim 1, wherein the decoupling element has a noise compensation element.

### Claim 4 (depends on 1)

The method for the automatic adaptation of a technical plant control as claimed in claim 1, wherein the decoupling element has a reactive-current element.

### Claim 5 (depends on 4)

The method for the automatic adaptation of a technical plant control as claimed in claim 4, wherein the reactive-current element is adapted in such a way that an output signal of a noise-compensated theoretical decoupling element is reduced to the extent that a change in the first control circuit impacts on the second control circuit and the second control circuit responds accordingly.

### Claim 6 (depends on 1)

The method for the automatic adaptation of a technical plant control as claimed in claim 1, wherein an automatically adaptable decoupling factor V is taken into account in the decoupling element as the at least one parameter automatically adaptable in the online operation of the technical plant.

### Claim 7 (depends on 1)

The method for the automatic adaptation of a technical plant control as claimed in claim 1, wherein a dead band is taken into account in the automatic online adaptation in the theoretical optimum process behavior of the technical plant.

### Claim 8 (depends on 1)

The method for the automatic adaptation of a technical plant control as claimed in claim 1, wherein the technical plant is a power plant.

### Claim 9 (depends on 1)

The method for the automatic adaptation of a technical plant control as claimed in claim 1, further comprising automatic decoupling of the first and the second control circuit.

### Claim 10 (depends on 1)

The method for the automatic adaptation of a technical plant control as claimed in claim 1, wherein adaptation of the control is implemented in a commissioning of the technical plant and/or during an operation of the technical plant.

### Claim 11 (depends on 1)

An automation system with a control for a technical plant, adapted to implement the method in claim 1.

### Claim 12 (depends on 1)

The method for the automatic adaptation of a technical plant control as claimed in claim 1, wherein the decoupling element is determined using a predefined system dynamic response.

### Claim 13 (depends on 1)

The method for the automatic adaptation of a technical plant control as claimed in claim 1, wherein the automatic online adaptation is terminated when the actual dynamic process behavior lies in a dead band that is taken into account in the theoretical optimum process behavior.

### Claim 14 (depends on 1)

The method for the automatic adaptation of a technical plant control as claimed in claim 1, wherein the technical plant is a steam power plant.

### Claim 15 (depends on 1)

A non-transitory computer-readable storage medium on which a computer program is stored which when executed performs the method of claim 1.
