# US 12,006,915 B2 · Method for improving reporting of operational data of a wind turbine

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- Number: US 12,006,915 B2
- Document ID: US12006915B2
- Status: Granted
- Kind: B2
- Application number: 18/479,413
- Filed: 2023-10-02
- Published: 2024-01-25
- Granted: 2024-06-11
- Earliest claimed: 2018-09-25
- Assignees: Scada International A/S
- Applicants: Scada International A/S
- Inventors: Bo Lovmand
- Web page: https://patentgrep.com/patent/US12006915B2

## CPC

- F03D 7/0264: {for stopping; controlling in emergency situations (orientating out of wind F03D7/0208)}
- F03D 7/042: {by means of an electrical or electronic controller}
- F03D 9/255: {connected to electrical distribution networks; Arrangements therefor}
- F03D 9/257: {the wind motor being part of a wind farm}
- F03D 17/00: Monitoring or testing of wind motors, e.g. diagnostics (testing during commissioning of wind motors F03D13/30)
- F03D 80/70: Bearing or lubricating arrangements
- G05B 23/02: Electric testing or monitoring
- G06F 11/30: Monitoring
- F05B 2260/80: Diagnostics
- F05B 2260/98: Lubrication
- F05B 2270/107: to cope with emergencies
- F05B 2270/303: Temperature
- F05B 2270/32: Wind speeds
- F05B 2270/325: Air temperature
- F05B 2270/329: Azimuth or yaw angle
- F05B 2270/337: Electrical grid status parameters, e.g. voltage, frequency or power demand
- Y02E 10/72: Wind turbines with rotation axis in wind direction
- F03D: WIND MOTORS
- 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)
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- F05B: INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

The invention described herein relates to a process for improving reporting of operational data of a wind turbine during operation thereof and a system for carrying out the process which may include a computer program for carrying out the process.

## Claims

### Claim 1

A process comprising the steps of:
generating one or more specific operating parameter values of a wind turbine during operation thereof with one or more sensors (S1, S2, S3, . . . SN);
transmitting said one or more specific operating parameter values to a control system (CS);
registering a critical event in said control system (CS when one or more specific operating parameter values corresponds to one or more predetermined criteria for shutting down the wind turbine;
setting a specific alarm by said control system (CS) a point in time at which a critical event is registered, wherein said specific alarm is reset by said CS at a point in time at which the registration of the presence of said critical event ceases;
wherein each specific alarm is associated with a corresponding alarm ID, wherein said alarms IDs are grouped into different sectors (SEC 1, SEC 2), each sector corresponding to a specific part of the wind turbine or its installation or operation;
wherein information from said control system (CS) relating to settings and resetting of one or more alarms corresponding to an individual alarm ID is transmitted to a monitoring system configured to log and store such information;
said process further comprising the steps of:
i) registering a time stamp (ST(1), ST(2), ST(3), . . . ST(M)) via a monitoring system (MS) in response to each setting of an alarm ID and registering a time stamp (RST(1), RST(2), . . . RST(3), RST(M)) in response to each resetting of said alarm ID;
ii) counting the amount of time in the control system (CS) during which an alarm ID corresponding to a specific sector is not set, and transferring information relating to such counting to said monitoring system (MS);
iii) registering that the wind turbine is not operating properly in a sector over a particular period of time when the monitoring system detects that counting of an alarm ID in step ii) has stopped.

### Claim 2 (depends on 1)

A process according to claim 1, wherein the number of sensors (S1, S2, S3, . . . SN) in said array of sensors and/or the number of alarm IDs of said wind turbine independently is at least 5.

### Claim 3 (depends on 1)

A process according to claim 1, wherein one or more of said one or more sensors (S1, S2, S3, . . . SN) relate to sensors for sensing:
problems with the mechanics; such as undesirably low level of gear oil, undesirably high bearing temperature, stuck pitch actuator, undesirably high yaw misalignment; and/or
problems with the grid, such as undesirably low grid frequency, undesirably high grid voltage, phase asymmetry; and/or
problems with the environment, such as undesirably high wind speed, undesirably low ambient temperature, undesirably low wind speed; and/or
external commands, such as remote stop instructions; and/or
normal operation, such as untwisting cables, performing self-test, heating component; and/or
wind turbine has been stopped by power trader; and/or
wind turbine has been stopped by utility authority or by grid authority.

### Claim 4 (depends on 1)

A process according to claim 1, wherein said one or more sectors (SEC 1, SEC 2) belongs to one or more of the following: data relating to the operation of the turbine; data relating to the environment of the wind turbine; data relating to the grid to which the wind turbine supplies power; data relating to “remotely stopped”; data relating to “stopped for service”; data relating to “stopped by trader”.

### Claim 5 (depends on 1)

A process according to claim 1, wherein the time counting performed in step ii) by said control system (CS) comprises registering at time stamps, separated by a predetermined period of time, a counting of the accumulated time at which no alarm IDs belonging to that specific sector is set.

### Claim 6 (depends on 5)

A process according to claim 5, wherein the predetermined period of time is from 0.1 s-600 min.

### Claim 7 (depends on 1)

A process according to claim 1, wherein said process is performed automatically.

### Claim 8 (depends on 1)

A process according to claim 1, wherein said process is performed continuously or regularly in respect of successive time spans.

### Claim 9 (depends on 1)

A process according to claim 1, wherein said process further comprises keeping a data log (DL), which logs a data set originating from said monitoring system (MS) and relating to one or more of the following entries: alarm IDs in respect of which an alarm has been set and/or reset, including the corresponding time stamp; information relating to the amount of time at which no alarm IDs belonging to that specific sector is set in respect of a specific sector, as determined in step ii); and the registration as performed in step iii).

### Claim 10 (depends on 1)

A computer program product, which when loaded and/or operating on a computer, is configured to perform a process according to claim 1.

### Claim 11 (depends on 10)

A SCADA system (Supervisory Control And Data Acquisition System) comprising a computer program product as defined in claim 10.

### Claim 12 (depends on 2)

A process according to claim 2, wherein the number of sensors (S1, S2, S3, . . . SN) in said array of sensors and/or the number of alarm IDs of said wind turbine independently is selected from the range of 5-2000.
