KR102123556B1 - Condition Monitoring and Diagnosis System for Wind Power Electric Generatiom System Served by Mobile Platform - Google Patents

Abstract

The present invention relates to a condition monitoring and diagnosis (CDMS) system for a wind power generation system which is easy to access to information management. The condition monitoring and diagnosis (CDMS) system includes a SCADA DCS, a CMS DCS, a BHM/SHM DCS, a CMDS DCS, a CMDS database, a CMDS client computer, a web server, and a mobile phone.

Description

Wind Power System Condition Monitoring and Diagnosis System for Wind Power Electric Generatiom System Served by Mobile Platform}

The present invention relates to a system for monitoring and diagnosing a wind power system in which a mobile platform is built.

Wind power generation systems that generate electricity using wind generally consist of a wind power generator and a central control unit that controls the wind power generator. Wind power generators generally include a blade rotating by wind, a nacelle composed of a device that converts the rotational energy of the blade into electrical energy, a hub connecting the blade and the nucelle, and a tower supporting the nucelle. Is done. In addition, the wind power generator and the central control unit are connected to the central control unit by wire or wirelessly.

In order to maintain an expensive wind power generator in a normal state for a long time, it is necessary to detect and repair or take other measures before a fatal failure or damage occurs. However, since it is impossible for a person to monitor the wind power generator in real time, it is necessary to monitor the state using specific parameter monitoring expressed by the wind power generator. However, the current technological development is insignificant.

A registered patent No. 10-1336718 owned by the applicant of the present invention includes: a wind speed range setting step of setting at least two wind speed ranges (W = W1, W2 ...) in a control unit; A vibration signal acquiring step (S20) of acquiring a vibration signal at one point of the wind turbine or at one point of the wind turbine component using an accelerometer; A vibration level calculation step in which a calculation unit calculates a vibration level of the vibration signal acquired in the vibration signal acquisition step; When it is determined that the wind speed measured by the wind sensor is maintained in one wind speed range for at least the set duration, the control unit controls vibration obtained during the time when the wind speed is maintained in one wind speed range for at least the set duration. Determining and storing the vibration level for the signal as effective vibration level data, and storing the data in a data storage unit; A reference value setting step in which a control unit sets an alarm reference value for each wind speed range based on the effective vibration level data; Including the control unit, an alarm signal generation step of comparing the vibration level of the vibration signal acquired for a time belonging to one wind speed range and the alarm reference value for each wind speed range belonging to the wind speed range to display an alarm signal to the manager. Disclosed is a method for generating an alarm for monitoring the condition of a wind power generator, characterized in that it is configured.

The present invention integrates and monitors information provided by the SCADA CMS BHM SHM monitoring system, enables diagnosis with integrated data, and also manages information by transmitting real-time information of the wind power system to the manager's smartphone. It is to provide a wind power system condition monitoring and diagnosis system with an easily accessible mobile platform.

In the state monitoring and diagnosis (CDMS) system for the wind power system,

A SCADA (Supervisory Control And Data Acquisition) data collection unit 10 of the wind power generation system;

CMS (condition monitoring system, Condition Monitoring System) data collection unit 20 of the wind power generation system;

BHM (Blade Heath Monitoring) data collection unit 30 of the wind power generation system;

A shaft heath monitoring (SHM) data collection unit 40 of the wind power generation system;

A SCADA DCS (SCADA Data Communication System, 50) that collects and mediates data from the SCADA (Supervisory Control And Data Acquisition) data collection unit 10;

CMS DCS (CMS Data Communication System, 60) that collects and mediates data from the CMS data collection unit 20;

BHM /SHM DCS (BHM/SHM Data Communication System, 70) that collects and mediates data from the blade heath monitoring (BHM) data collection unit 30 and the shaft heath monitoring (SHM) data collection unit 40, respectively. ;

SCADA real-time data received and transmitted from the SCADA DCS 50, and stored

The CMS DCS 60 and the BHM/SHM DCS 70 receive and transmit operating states of subsystems (CMS monitored systems or parts, blades, shafts), respectively, and the subsystems (CMS monitored systems or parts, blades) , Shaft) CMDS DCS (Condition Monitoring Diagnosis System, 80) for receiving raw data;

Raw on the subsystem (CMS monitoring target system or part, blade, shaft // CMS-20 and 60, BHM/SHM Syetem-30, 40, 70) transmitted from the CMDS DCS (Condition Monitoring Diagnosis System, 80) A CMDS database (Condition Monitoring Diagnosis System Database, 90) that stores data including data;

From CMDS Condition Monitoring Diagnosis System (DCS) 80 and CMDS Database (Condition Monitoring Diagnosis System Database, 90), SCADA real-time data and subsystems (CMS monitored systems or parts, blades, shafts, or CMS-20 and 60, BHM /SHM Syetem-30, 40, 70) CMDS Client computer 110 for receiving the operating state;

From CMDS Condition Monitoring Diagnosis System (DCS) 80 and CMDS Database (Condition Monitoring Diagnosis System Database, 90), SCADA real-time data and subsystems (CMS monitored systems or parts, blades, shafts, or CMS-20 and 60, BHM /SHM Syetem-30, 40, 70) Web server (Eeb Server, 120) for receiving the operating state;

Real-time SCADA data and subsystems (CMS monitored systems or parts, blades, shafts, or CMS-20 and 60, BHM/SHM Syetem-30, 40, 70) from the web server (Eeb Server, 120) Mobile phone 130 using the mobile software to receive;

A mobile platform characterized by being constructed in a state monitoring and diagnosis (CDMS) system for a wind power generation system, characterized in that it comprises.

In accordance with the present invention, the information provided by the SCADA CMS BHM SHM monitoring system can be monitored by integrating it, and diagnostics can be performed with integrated data. Also, real-time information of the wind power system is transmitted to the manager's smart phone for information Provided is a wind power system condition monitoring and diagnosis system with a mobile platform that is easy to manage and access to.

1 is an overall configuration diagram of a wind power system condition monitoring and diagnosis system in which the mobile platform of the present invention is built.
Figure 2 is an overall configuration diagram of a wind power generation system condition monitoring and diagnosis system in which the mobile platform of the present invention is built.
3 is a CMDS network flow diagram according to an embodiment of the present invention.
Figure 4 (a, b) is an interface (dashboard, interval cursor) screen provided to the CMDS Client computer according to an embodiment of the present invention.
5 is a diagram of a predictive diagnosis menu provided to a CMDS Client computer according to an embodiment of the present invention.
6 to 12 are interface screens provided to a client mobile phone through a CMDS web server according to an embodiment of the present invention.

In the present invention, SCADA (Supervisory Control And Data Acquisition) refers to a monitoring control function of the SCADA system, also called a centralized remote monitoring control system or a monitoring control data collection system. SCADA system refers to a system in which a central control system monitors and controls a remote device by collecting, receiving, recording, and displaying status information data of a remote device to a remote terminal unit using analog or digital signals on a communication path. It is a system that centrally monitors and controls remote facility equipment in transmission and distribution facilities. The main functions of the SCADA system are: ① Alarm function, which is a function of the monitoring system that performs a predetermined operation according to the alarm condition of the remote device ② Remote control, which is a manual, automatic, or manual/automatic combination operation ③ Remote control Instruction/display function of the monitoring system that receives, displays and records the status information of the device. ④ Digital pulse information is received and added to be used for display and recording.

In the present invention, the state monitoring system of the wind power generation system, CMS (Condition Monitoring System), includes, for example, monitoring temperature vibration data, such as a nucel, a main bearing, a gear box, and a generator input/output unit.

In the present invention, BHM (Blade Heath Monitoring) of a wind power generation system refers to monitoring the blade state of a wind power generator by measuring data vibration, image, thermal image, deformation, and the like.

In the present invention, SHM (Shaft Heath Monitoring) of a wind power generation system refers to monitoring the state of a wind power generator shaft (Post, a Nessel support column) by measuring data vibration, image, thermal image, deformation, and the like.

In the present invention, CDMS (Condition Monitoring Diagnosis System) refers to a system having a wind power monitoring and diagnosis (prognosis) function.

The term active bin used in the present invention will be described. The International Electrotechnical Commission (IEC) 61400-25-6 (Communications for monitoring and control of wind power plants, TC 88) sets the standard for the concept of'bin'. Bin is a term used in a technique for dealing with such data when a parameter has a constantly changing pattern rather than converging or maintaining a steady state at a certain value. To briefly explain this technique, for a certain physical parameter to be analyzed, a certain range of ranges in the corresponding parameter is determined in advance, and if the measured parameter value is within a predetermined time period within that range, the parameter is in that range during that time. This is a statistical processing technique that performs analysis by considering a given state as a given value (for example, a median value, an average value, etc.), and the term'empty' refers to a predetermined range section for the corresponding parameter. That is, if certain bins are set in advance, and parameters to be measured and analyzed are included in the bins, it is assumed that the bins are operated under certain conditions corresponding to the bins, and control or analysis is performed. In this aspect, bins used for control or analysis are also referred to as active bins.

1 is an overall configuration diagram of a wind power generation system condition monitoring and diagnosis system in which the mobile platform of the present invention is built, FIG. 2 is an overall configuration diagram of a wind power system state monitoring and diagnosis system in which the mobile platform of the present invention is built, and FIG. 3 is CMDS network flow diagram according to an embodiment of the present invention.

Hereinafter, a state monitoring and diagnosis system for a wind power generation system in which the mobile platform of the present invention is built will be described with reference to the accompanying drawings. 1 to 3, the wind power system condition monitoring and diagnosis system on which the mobile platform of the present invention is built, relates to a state monitoring and diagnosis (CDMS) system for the wind power system and SCADA of the wind power system (Supervisory Control And Data Acquisition) data collection section 10, wind power system CMS (condition monitoring system) data collection section 20, wind power generation system BHM (Blade Heath Monitoring) data collection section SCADA DCS (SCADA Data Communication) that collects and mediates data from 30, the Shaft Heath Monitoring (SHM) data collection unit 40 of the power generation system, and the SCADA (Supervisory Control And Data Acquisition) data collection unit 10 System, 50), and CMS DCS (CMS Data Communication System, 60) that collects and mediates data from the existing CMS data collection unit 20.

1 to 3, the wind power generation system condition monitoring and diagnosis system in which the mobile platform of the present invention is built, BHM/SHM DCS (BHM/SHM Data Communication System, 70) and CMDS DCS (Condition Monitoring Diagnosis) System, 80), CMDS database (Condition Monitoring Diagnosis System Database, 90), CMDS Client computer 110 and Web server (Eeb Server, 120); The mobile phone 130 is further included.

As shown in Figures 1 to 3, in the wind power system condition monitoring and diagnosis system with a mobile platform of the present invention, BHM / SHM DCS (BHM / SHM Data Communication System, 70) is BHM (Blade Heath Monitoring) ) It collects data from the data collection unit 40 and serves as an intermediary.

1 to 3, in the wind power system condition monitoring and diagnosis system in which the mobile platform of the present invention is built, CMDS DCS (Condition Monitoring Diagnosis System, 80) is real-time SCADA data from CADA DCS 50 And receive and transmit, and receive and transmit operating states of the subsystems (CMS monitoring target system or parts, blades, shafts) from the CMS DCS 60 and BHM/SHM DCS 70, respectively, and the subsystems (CMS monitoring target) System or parts, blades, shafts).

1 to 3, the CMDS database (Condition Monitoring Diagnosis System Database, 90) is a subsystem (CMS monitoring target system or component, blade, shaft) transmitted from the CMDS DCS (Condition Monitoring Diagnosis System, 80). // Or, data including raw data for CMS-20 and 60, BHM/SHM Syetem-30, 40, 70) is stored.

1 to 3, CMDS database (Condition Monitoring Diagnosis System Database, 90), CMDS Client computer 110, CMDS DCS (Condition Monitoring Diagnosis System, 80) and CMDS database (Condition Monitoring Diagnosis System) Database, 90), SCADA real-time data and subsystems (CMS monitored systems or components, blades, shafts, or CMS-20 and 60, BHM/SHM Syetem-30, 40, 70) are received.

1 to 3, the web server (Eeb Server, 120), CMDS database (Condition Monitoring Diagnosis System Database, 90), CMDS DCS (Condition Monitoring Diagnosis System, 80) and CMDS database (Condition Monitoring) Diagnosis System Database (90), SCADA real-time data and subsystems (CMS monitored systems or parts, blades, shafts or CMS-20 and 60, BHM/SHM Syetem-30, 40, 70) .

1 to 3, the mobile phone 130, SCADA real-time data and subsystems from a web server (Eeb Server, 120) using mobile software (CMS monitored systems or parts, blades, shafts / Or, receive the operating status of CMS-20 and 60, BHM/SHM Syetem-30, 40, 70).

As shown in Figure 1 to 3, in the wind power system condition monitoring and diagnosis system with a mobile platform of the present invention, CMDS DCS (Condition Monitoring Diagnosis System, 80), SCADA DCS (SCADA Data Communication System, 50) or CMS Data Communication System (60), receives information related to Active Bin and performs synchronization and analysis of related data, and the CMDS database 90 stores the Active Bin analysis data.

1 to 3, it is preferable that the wind power generation system condition monitoring and diagnosis system in which the mobile platform of the present invention is constructed further comprises an O&M database 140 in which maintenance history is stored. Do.

In addition, as shown in FIG. 4(b), when an interval cursor function is provided and an interval cursor is selected, an interval between two cursors can be adjusted, and when both ends of the time are specified through the cursor, the time between the corresponding times It is preferable to display the frequency analysis data together with the data.

The functions of the CDMS DCS of the present invention will be briefly described.

- . SCADA real-time (1 second) data reception/transmission/storage

Receive SCADA 1 second data and send it to CMDS Client and Mobile

SCADA 1 second data is 10 minutes to perform Active Bin synchronization (CMDS DB)

Save file as raw data

-. Subsystem operation status reception/transmission

SCADA / CMS / BHM / SHM operation status reception and client and mobile SW transmission

-. Subsystem raw data reception and Active Bin synchronization

1) If there is no CMS data, SCADA/BHM/SHM data is discarded

2) If there is CMS data, it receives TDMS file from CMS DCS, checks Time and Active Bin information, analyzes Raw Data of the same time subsystem, synchronizes time and Active Bin information, and sends it to the database

3) Raw Data Information

SCADA: Analog 9Ch, Digital 6Ch / 1 Samples per sec / Mean analysis

CMS: 16Ch / 25,600 Samples per sec / RMS, Kurtosis, Crest Factor analysis

BHM/SHM: 14Ch / 50 Samples per sec / Max, Mean, Min, Std.Dev analysis

The characteristics of the CDMS database (DB) data of the present invention are as follows.

Subsystem
Channel (variable)

Analysis (calculation) method

Update cycle




SCADA
Analog 9Ch (1 Samples per sec)
Wind Speed / Wind Direction / Pitch Angle / Rotor Speed / Active Power / Nacelle Temp. / Gearbox Oil Temp. / Gearbox Bearing Temp. / Generator Bearing Temp.
Digital 6Ch (10 Samples per sec)
Yaw “On/Off” / Pitch “On/Off” / Idling “On/Off” / Availability “On/Off” / Grid “On/Off” / Fault “On/Off”






Mean






1 second
Event
Date / Time / Code / Description



-

-


CMS

Ch1 ~ Ch16 (25,600 Samples per sec)
(Use channel 12): MBA, MBV, TAL, TAR, GB2H, GB2V, GB3H, GB3V, DEA, DEH, NDEH, NDEV
(Preliminary channel 4): NCH, NCA, AXFH, AXFA
RMS
Kurtosis
Crest Factor


1 second
Event
Date / Time / Channel / Parameter / Measurement / Threshold


-

-

BHM/SHM

Ch1 ~ Ch14 (50 Samples per sec)
MBE1, MBE2, MBE3, MBF1, MBF2, MBF3, TROT, MH0, MH90, MTTZ, MTT0, MTT90, MBT0, MBT90

Max
Mean
Min


1 second

O&M DB data
Item

Justice
Remark
Date
Date of creation of Component Inspection Report report

Time

Field inspection report generation time

Part

4 parts
Main Bearing / Gearbox / Generator / Nacelle


Assessment

7 items
No Access / Limited Access / Acceptable / Wear & Tear / Shortened Service Life / Failed

Maintenance

User input item (Text)


Photo


H768 x V576 (pixel), compressed JPEG format

Link only file storage path

Check List

Display items by parts

See Attachment

4 (a, b) is an interface screen provided to the CMDS Client computer according to an embodiment of the present invention. As shown in Figure 4a (dashboard), by selecting a generator in the tree, check the operation information of the generator, check the number of installations and connection status of the selected group, and check the recently generated alarm information / display a user-set image, etc. It is equipped.

As shown in FIG. 4B, when an interval cursor function is provided and an interval cursor is selected, a time difference is displayed by adjusting an interval between two cursors, and frequency analysis data is displayed together with the time data existing between the corresponding times. As illustrated in FIG. 5, a predictive diagnosis function menu is provided through a SCADA/SHM/BHM/CMS data integration status index provided with a predictive diagnosis function.

6 to 12 are interface screens provided to a client mobile phone through a CMDS web server according to an embodiment of the present invention.

Figure 6: Mobile SW -Main & Menu List

Main screen

The GreenEye logo is shown in the center of the initial Main screen.

Enter your User ID (E-mail) and Password under the GreenEye logo.

Click the Log in button under ID and Password to access.

Menu List

The menu consists of 7 items, as shown on the left.

Figure 7: Mobile SW-Wind Farm Info

Wind Farm Info.

At the top, the user ID and current date and time are displayed.

The image of the wind farm is shown below the date/time.

Selecting a complex from the wind farm image shows a list of turbines in the complex and displays the turbine alarm (SCADA) status.

Figure 8: Mobile SW -Wind Turbine Info

Wind Turbine Info.

At the top, the user ID and current date and time are displayed.

It displays real-time data of wind turbine under date/time.

(Wind speed, wind direction, nacelle direction, power generation, turbine operation status)

Enter the search period under the real-time data, and display the event list and CMS event list of the wind turbine, respectively.

O&M History is displayed at the bottom.

Figure 9: Mobile SW -Monitoring

Monitoring

At the top, the user ID and current date and time are displayed.

Enter the data period below the date/time.

Wind Rose and Power Curve are shown.

Under the Wind Rose and Power Curve, Power Production, Availability, and Prognostics Results (Remaining Useful Life) are shown as bar graphs, respectively.

Figure 10: Mobile SW -O&M History

O&M History

At the top, the user ID and current date and time are displayed.

Enter the data search period below the date/time.

Displays the O&M History entered by the ISP in the Mobile SW.

Click each O&M History to display and display the part information and pictures before and after the work.

Figure 11: Mobile SW -O&M Check List

O&M Check List

At the top, the user ID and current date and time are displayed.

Select the O&M part in the Mobile SW under the date/time.

When a part is selected, a check list is loaded and displayed.

Checked items can be entered through the checkbox on the right.

Figure 12: Mobile SW -Component Inspection Report

Component Inspection Report

At the top, the user ID and current date and time are displayed.

It allows you to select the parts to be checked under the date/time. (Main Brg. / Gearbox / Generator)

Allows you to enter an on-site inspection result at the bottom of the part selection window.

Under the inspection result, it is possible to enter the work result and review opinion.

In the lower right corner, configure the camera interface to take pictures before and after the work.

The present invention has been described in connection with the preferred embodiments mentioned above, but the scope of the present invention is not limited to these embodiments, and the scope of the present invention is defined by the following claims, and is equivalent to the present invention. It will include various modifications and variations belonging to.

The reference numerals set forth in the claims below are merely intended to assist the understanding of the invention and do not affect interpretation of the scope of claims, and the scope of rights should not be interpreted narrowly by the reference numerals described.

10: SCADA data collection unit
20: CMS data collection unit
30: BHM data collection unit of the wind power generation system
40: SHM data collection unit of the wind power generation system
50: SCADA DCS
60: CMS DCS
70: BHM /SHM DCS
80: CMDS DCS
90: CMDS database
110: CMDS Client computer
120: web server
130: mobile phone
140: O&M database

Claims (4)

In the state monitoring and diagnosis (CDMS) system for the wind power system,
A SCADA (Supervisory Control And Data Acquisition) data collection unit 10 of the wind power generation system;
CMS (condition monitoring system, Condition Monitoring System) data collection unit 20 of the wind power generation system;
BHM (Blade Heath Monitoring) data collection unit 30 of the wind power generation system;
A shaft heath monitoring (SHM) data collection unit 40 of the wind power generation system;
A SCADA DCS (SCADA Data Communication System, 50) that collects and mediates data from the SCADA (Supervisory Control And Data Acquisition) data collection unit 10;
CMS DCS (CMS Data Communication System, 60) that collects and mediates data from the CMS data collection unit 20;
BHM /SHM DCS (BHM/SHM Data Communication System, 70) that collects and mediates data from the blade heath monitoring (BHM) data collection unit 30 and the shaft heath monitoring (SHM) data collection unit 40, respectively. ;
SCADA real-time data received and transmitted from the SCADA DCS 50, and stored
The CMS DCS 60 and the BHM/SHM DCS 70 receive and transmit operating states of subsystems (CMS monitored systems or parts, blades, shafts), respectively, and the subsystems (CMS monitored systems or parts, blades) , Shaft) CMDS DCS (Condition Monitoring Diagnosis System, 80) for receiving raw data;

Raw on the subsystem (CMS monitoring target system or component, blade, shaft // CMS-20 and 60, BHM/SHM Syetem-30, 40, 70) transmitted from the CMDS DCS (Condition Monitoring Diagnosis System, 80) A CMDS database (Condition Monitoring Diagnosis System Database, 90) that stores data including data;

From CMDS Condition Monitoring Diagnosis System (DCS) 80 and CMDS Database (Condition Monitoring Diagnosis System Database, 90), SCADA real-time data and subsystems (CMS monitored systems or parts, blades, shafts, or CMS-20 and 60, BHM /SHM Syetem-30, 40, 70) CMDS Client computer 110 for receiving the operating state;

From CMDS Condition Monitoring Diagnosis System (DCS) 80 and CMDS Database (Condition Monitoring Diagnosis System Database, 90), SCADA real-time data and subsystems (CMS monitored systems or parts, blades, shafts, or CMS-20 and 60, BHM /SHM Syetem-30, 40, 70) the web server (Eeb Server, 120) for receiving the operating state;

SCADA real-time data and subsystems (CMS monitored systems or parts, blades, shafts/or CMS-20 and 60, BHM/SHM Syetem-30, 40, 70) from the web server (Eeb Server, 120) Mobile phone 130 using the mobile software to receive;
A wind power generation system condition monitoring and diagnosis system with a mobile platform characterized in that it comprises a.
According to claim 1,
The CMDS DCS (Condition Monitoring Diagnosis System, 80),
Receives Active Bin-related information from the SCADA DCS (SCADA Data Communication System, 50) or CMS Data Communication System, 60) and performs synchronization and analysis of related data,
The CMDS database 90 is a wind power generation system condition monitoring and diagnosis system with a mobile platform characterized in that it stores the Active Bin analysis data.
According to claim 1,
Wind power generation system condition monitoring and diagnosis system with a mobile platform, characterized in that further comprises a; O & M database 140 that stores the maintenance history.
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