CN108757344A - A kind of wind power generating set on-line monitoring system - Google Patents
A kind of wind power generating set on-line monitoring system Download PDFInfo
- Publication number
- CN108757344A CN108757344A CN201810731078.9A CN201810731078A CN108757344A CN 108757344 A CN108757344 A CN 108757344A CN 201810731078 A CN201810731078 A CN 201810731078A CN 108757344 A CN108757344 A CN 108757344A
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- signal
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- station system
- slave station
- section tower
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
Abstract
The invention discloses a kind of wind power generating set on-line monitoring systems, including sequentially connected main station system and four slave station systems.Main station system setting is on the section tower barrel platform of bottom, including main website sensor group and main website PLC module group connected to it；First slave station system is arranged on the tower barrel platform of stage casing, including first sensor group and the first PLC module group connected to it；The setting of second slave station system is on the section tower barrel platform of top, including second sensor group and the second PLC module group connected to it；Third slave station system is arranged in engine room inside, including 3rd sensor group and third PLC module group connected to it；4th slave station system is arranged in hub interior, including the 4th sensor group and the 4th PLC module group connected to it.The present invention can realize comprehensive real-time monitoring to Wind turbines, and monitoring range is wide, data are comprehensive, provide reliable data support comprehensively for the operation monitoring of Wind turbines, solve the existing unit on-line monitoring incomplete defect of information.
Description
Technical field
The present invention relates to Wind turbines technical fields, more particularly to a kind of wind power generating set on-line monitoring system.
Background technology
Currently, the on-line monitoring of wind power generating set generally only carries out vibration monitoring and temperature monitoring, more without one kind
Comprehensive on-line monitoring system such as includes the on-line monitoring carried out to the various spare parts logistics of wind power generating set, situation.By
There is blades to freeze in wind power generating set, blade loading cross major rupture, tower moment of flexure it is excessive fracture, tower tilts sedimentation,
The problem of flange bolt loosening etc. is likely to occur, and the discovery of these problems just needs to carry out real time on-line monitoring.
On this basis, the present invention seeks to found a kind of new wind power generating set on-line monitoring system, can be more
Comprehensively, more reliable to be monitored on-line to wind power generating set, becoming current industry pole needs improved target.
Invention content
The technical problem to be solved in the present invention is to provide a kind of wind power generating set on-line monitoring systems, can be more complete
Face, it is more reliable wind power generating set is monitored on-line, to overcome the shortcomings of existing monitoring system.
In order to solve the above technical problems, the present invention provides a kind of wind power generating set on-line monitoring system, including connect successively
Main station system, the first slave station system, the second slave station system, third slave station system and the 4th slave station system connect,
The main station system is arranged on the section tower barrel platform of the bottom of wind power generating set, including is used to acquire bottom section tower and shakes
Humidity in temperature signal, bottom section tower moment of flexure signal, auxiliary transformer current signal and bottom section tower in dynamic signal, bottom section tower
The main website sensor group of signal, and the main website PLC module group that is connect with the main website sensor group；
The first slave station system is arranged on the tower barrel platform of wind power generating set stage casing, including is used to acquire stage casing tower
Vibration signal, stage casing tower moment of flexure signal connect the first sensor group of tools for bolts ' pretension force signal with stage casing tower, and with institute
State the first PLC module group of first sensor group connection；
The second slave station system setting is on the section tower barrel platform of wind power generating set top, including is used to acquire top section tower
Vibration signal, top section tower shake signal, top section tower temperature signal, top section tower moment of flexure signal, top section tower torque signal
The second sensor group of tools for bolts ' pretension force signal is connected with top section tower, and second connect with the second sensor group
PLC module group；
The third slave station system is arranged inside wind generating set engine room, including is used to acquire temperature in cabin and believes
Number, pressure inside cabin cabinet power current signal, pitch-controlled system power current signal, yaw motor current signal, spindle bearing holder
Force signal, gear-box toggle displacement signal, housing bearing seat displacement signal, the outer atmospheric pressure letter of moisture signal, cabin in cabin
Number, base bearing front-end bearing pedestal radial vibration signal, base bearing rear bearing block axial vibration signal, gear-box 1 grade of gear ring vibration letter
Number, 2 grades of gear ring vibration signals of gear-box, gearbox high-speed shaft vibration signal, gearbox high-speed axial direction vibration signal, generator drive
The 3rd sensor group of icing signal outside moved end bearing vibration signal, generator non-driven-end bearing vibration signal and cabin, with
And the third PLC module group being connect with the 3rd sensor group；
The 4th slave station system is arranged inside wind generator unit wheel hub, including be used to acquire blade loading signal,
Main-shaft torque signal connects the 4th sensor group of tools for bolts ' pretension force signal with impeller spindle, and with the 4th sensor group
4th PLC module group of connection.
As an improvement of the present invention, the main website sensor group includes the electricity for acquiring bottom section tower vibration signal
Appearance formula vibrating sensor, for acquire bottom section tower in temperature signal PT100 temperature sensors, for acquire bottom section tower it is curved
The T-type foil gauge of square signal, the AC current transducer for acquiring auxiliary transformer current signal, for acquire bottom section tower
The Temperature Humidity Sensor of interior moisture signal.
It is further improved, the main website sensor group includes five PT100 temperature sensors.
It is further improved, the first sensor group includes vibrating biography for acquiring the condenser type of stage casing tower vibration signal
Sensor, the T-type foil gauge for acquiring stage casing tower moment of flexure signal connect tools for bolts ' pretension force signal with for acquiring stage casing tower
Washer type tools for bolts ' pretension force snesor.
It is further improved, the second sensor group includes vibrating biography for acquiring the condenser type of top section tower vibration signal
Sensor shakes the obliquity sensor of signal, two PT100 for acquiring top section tower temperature signal for acquiring top section tower
Temperature sensor, the T-type foil gauge for acquiring top section tower moment of flexure signal, the Y types for acquiring top section tower torque signal
Foil gauge, the washer type tools for bolts ' pretension force snesor that tools for bolts ' pretension force signal is connected for acquiring top section tower.
It is further improved, the 3rd sensor group includes being passed for acquiring 8 of temperature signal in cabin PT100 temperature
Sensor and 1 Temperature Humidity Sensor, for the AC current transducer of harvester tank power current signal, for acquiring variable pitch
The AC current transducer of system power supply current signal, is used the AC current transducer for acquiring yaw motor current signal
In acquisition spindle bearing holder internal pressure signal 4 pressure sensors, two for acquiring gear-box toggle displacement signal
A eddy current displacement sensor, two eddy current displacement sensors for acquiring rack bearing seat shifting signal, for acquiring
The Temperature Humidity Sensor of moisture signal in cabin, for harvester out of my cabin the atmosphere pressure sensor of atmospheric pressure signal, for acquiring
The intermediate frequency IEPE acceleration transducers of base bearing front-end bearing pedestal radial vibration signal axially shake for acquiring base bearing rear bearing block
The intermediate frequency IEPE acceleration transducers of dynamic signal are passed for acquiring the intermediate frequency IEPE acceleration of 1 grade of gear ring vibration signal of gear-box
Sensor, the high-frequency I EPE acceleration transducers for acquiring 2 grades of gear ring vibration signals of gear-box, for acquiring high speed shaft of gearbox
The high-frequency I EPE acceleration transducers of vibration signal accelerate for acquiring the high-frequency I EPE of generator drive end bearing vibration signal
Sensor, the high-frequency I EPE acceleration transducers for acquiring generator non-driven-end bearing vibration signal are spent, and for acquiring
The freezing sensor of icing signal outside cabin.
It is further improved, the 4th sensor group includes for acquiring the T-type foil gauge of blade loading signal, for adopting
Collect the Y types foil gauge of main-shaft torque signal, connect the washer type tools for bolts ' pretension of tools for bolts ' pretension force signal for acquiring impeller spindle
Force snesor.
It is further improved, the 4th sensor group includes 36 T-type foil gauges, T-type foil gauge described in each two
It is one group, is connected into a T-type foil gauge full-bridge circuit, the T-type foil gauge full-bridge circuit is separately positioned on three blades not
With on position, the blade root of every blade, away from blade root 800mm, away from T-type foil gauge full-bridge described in pasting two groups respectively at blade root 24m
Circuit, the full-bridge circuit that 36 T-type foil gauges are connected into are used to measure the microstrain of blade different parts.
It is further improved, a CPU module is further respectively had in the main station system and the 4th slave station system.
Be further improved, the main station system, the first slave station system, the second slave station system and third slave station system mutually it
Between pass through photoelectric coupling module and optical fiber and carry out signal data transmission；Lead between the third slave station system and the 4th slave station system
It crosses bluetooth module and carries out wireless data transmission；The main station system passes through photoelectric converter, optical fiber switch and Wind turbines
Master control system connects.
By adopting such a design, the present invention has at least the following advantages：
The present invention by a main station system and four slave station systems to wind generator set blade load, main-shaft torque,
Icing conditions, atmospheric pressure, base bearing vibration, gear-box vibration, Generator Vibration, current of electric, tower load, connection bolt
Pretightning force etc. signal carries out the comprehensive on-line monitoring of full information, is provided comprehensively reliably for the operation monitoring of wind power generating set
Data support solve the current wind power generator group on-line monitoring incomplete situation of information.
This system, can be by SCADA system also by being communicated with wind power generating set master control and wind field SCADA system
The signal data of acquisition is handled, shows and alarms in SCADA system, is reached and is pinpointed the problems in time, solves to ask in time
The purpose of topic, and can also be that the design of new architecture and improvement bring reference frame.
Description of the drawings
The above is merely an overview of the technical solutions of the present invention, in order to better understand the technical means of the present invention, below
In conjunction with attached drawing, the present invention is described in further detail with specific implementation mode.
Fig. 1 is the structural schematic diagram of wind power generating set on-line monitoring system of the present invention.
Specific implementation mode
With reference to shown in attached drawing 1, wind power generating set on-line monitoring system of the present invention include a main station system 5 and four from
It stands system, i.e. the first slave station system 1, the second slave station system 2, third slave station system 3 and the 4th slave station system 4.The main station system 5
On the section tower barrel platform of Wind turbines bottom, which is located among third section on tower barrel platform, second slave station
System 2 is located on the section tower barrel platform of top, which is located in the cabin of Wind turbines, the 4th slave station system 4
In in the wheel hub of Wind turbines.Include several sensors in the main station system and four slave station systems, for realizing totally 108
The data of a monitored parameters acquire.
Specific implementation mode is as follows：
The main station system 5 includes for acquiring bottom section tower vibration signal, temperature signal, bottom section tower are curved in the section tower of bottom
The main website sensor group 51 of moisture signal in square signal, auxiliary transformer current signal and bottom section tower, and passed with the main website
The main website PLC module group that sensor group 51 connects.
Wherein, section tower vibration signal in bottom is to monitor the low of bottom section tower by using a condenser type vibrating sensor
Frequency vibration signal, condenser type vibrating sensor can survey the Vibration Condition of X-axis, Y-axis both direction.The condenser type vibrating sensor
The voltage signal for exporting 0.8~4.2V, is received by the voltage signal acquisition module in main website PLC module group and carries out processing conversion
For frequency values, achievees the purpose that measure bottom section tower vibration frequency, realize the monitoring to bottom section tower Vibration Condition.
Temperature signal is come in fact by using five PT100 temperature sensors and a Temperature Humidity Sensor in the section tower of bottom
Existing.Five PT100 temperature sensors are separately positioned at the different location in the tower of bottom end, and temperature signal is resistance
Value, resistance value are received and processed by the PT100 modules in main website PLC module group and are converted into temperature data value.The humiture passes
The temperature signal of sensor exports the current signal of 4~20mA, is received simultaneously by the current signal collection module in main website PLC module group
Processing is converted into temperature value.Achieve the purpose that monitoring tower base environment temperature, realize current transformer offer a high price temperature when environment temperature whether
The monitoring met the requirements.
For bottom section tower moment of flexure signal by using T-type foil gauge, which is connected into full-bridge circuit, the letter of output μ ε
Number, it is received by the module of the acquisition microstrain in main website PLC module group and processing is converted into moment.Reach monitoring bottom section tower
The purpose for the bending moment situation born, proof load are transmitted.
Auxiliary transformer current signal is by using an AC current transducer.The AC current transducer output be
The current signal of 4~20mA is received and processed by the current signal collection module in main website PLC module group and is converted into electric current number
Value.Achieve the purpose that monitor Wind turbines from power consumption.
Moisture signal is by using a Temperature Humidity Sensor in the section tower of bottom.The moisture signal of the Temperature Humidity Sensor is defeated
It is the current signal of 4~20mA to go out, and is received and processed by the current signal collection module in main website PLC module group and is converted into humidity
Numerical value.Achieve the purpose that monitoring tower base ambient humidity, can be used to assess humidity and whether have an impact to column foot equipment such as current transformer.
The first slave station system 1 includes for acquiring stage casing tower vibration signal, stage casing tower moment of flexure signal and stage casing tower
Cylinder connects the first sensor group 11 of tools for bolts ' pretension force signal, and the first PLC module being connect with the first sensor group 11
Group.
Wherein, which monitors the low of stage casing tower by using a condenser type vibrating sensor
Frequency vibration signal, the condenser type vibrating sensor can also survey the Vibration Condition of X-axis, Y-axis both direction, export 0.8~4.2V
Voltage signal, received by the voltage signal acquisition module in the first PLC module group and carry out processing be converted into frequency values.It reaches
To the purpose for measuring stage casing tower vibration frequency, the monitoring to stage casing tower Vibration Condition is realized.
Stage casing tower moment of flexure signal is connected into full-bridge circuit, output μ ε letters by using T-type foil gauge, by the T-type foil gauge
Number, the module by acquiring microstrain in the first PLC module group receives and processing is converted into moment.Reach monitoring stage casing tower to hold
The purpose for the bending moment situation received, proof load are transmitted.
Stage casing tower connection tools for bolts ' pretension force signal is realized by using a washer type tools for bolts ' pretension force snesor.It should
Tools for bolts ' pretension force sensor measuring microstrain, output voltage signal, the module by acquiring microstrain in the first PLC module group receive
It is converted into tools for bolts ' pretension torque value with processing.Reach the mesh for the pre-fastening moment value size that monitoring stage casing tower connection bolt is born
's.
The second slave station system 2 includes shaking signal, top section tower for acquiring top section tower vibration signal, pushing up section tower
Temperature signal, top section tower moment of flexure signal, top section tower torque signal connect the second of tools for bolts ' pretension force signal with top section tower
Sensor group 21, and the second PLC module group for being connect with second sensor group 21.
Wherein, top section tower vibration signal monitors the low of top section tower yet by a condenser type vibrating sensor is used
Frequency vibration signal, the condenser type vibrating sensor are same as above, and the voltage signal of 0.8~4.2V are exported, by the second PLC module group
Voltage signal acquisition module, which receives and carries out processing, is converted into frequency values, achievees the purpose that measure top section tower vibration frequency,
Realize the monitoring to pushing up section tower Vibration Condition.
Top section tower shakes signal by using an obliquity sensor to monitor the inclination angle for pushing up section tower barrel platform.The inclination angle
Sensor can survey the inclination conditions of X-axis, Y-axis both direction, the current signal of 4~20mA be exported, by the second PLC module group
Current signal collection module receive and process and be converted into tilt values.Achieve the purpose that monitoring top section tower shaking amplitude.
Top section tower temperature signal monitors temperature in the section tower of top by using two PT100.PT100 temperature signals are
Resistance value is received and processed by the PT100 modules in the second PLC module group and is converted into temperature data value.Reach monitoring top section tower
The purpose of environment temperature, data reference value is provided for researchs such as heat dissipation, the convection current of Wind turbines in cylinder.
Top section tower moment of flexure signal is by using T-type foil gauge, which is connected into full-bridge circuit, output μ ε letters
Number, it is received by the module of the acquisition microstrain in the second PLC module group and processing is converted into moment.Reach monitoring top section tower
The purpose for the bending moment situation born, proof load are transmitted.
Section tower torque signal is pushed up by using Y type foil gauges, which is connected into full-bridge circuit, exports μ ε signals,
It is received by the module of the acquisition microstrain in the second PLC module group and processing is converted into torque value.Reach monitoring top section tower
The purpose of torsional moment situation.
It pushes up section tower and connects tools for bolts ' pretension force signal by using washer type tools for bolts ' pretension force snesor.The bolt pretightening
Sensor measurement microstrain, output voltage signal are received by the module of the acquisition microstrain in the second PLC module group and processing turn
Turn to tools for bolts ' pretension torque value.Achieve the purpose that the pre-fastening moment value size that monitoring top section tower connection bolt is born.
The third slave station system 3 includes for acquiring temperature signal in cabin, cabin cabinet power current signal, pitch-controlled system
Power current signal, yaw motor current signal, spindle bearing holder internal pressure signal, gear-box toggle displacement signal, machine
The outer atmospheric pressure signal of moisture signal, cabin in frame bearing seat shifting signal, cabin, base bearing front-end bearing pedestal radial vibration signal,
Base bearing rear bearing block axial vibration signal, 1 grade of gear ring vibration signal of gear-box, gear-box 2 grades of gear ring vibration signals, gear-boxes
High speed shaft vibration signal, gearbox high-speed axial direction vibration signal, generator drive end bearing vibration signal, generator anti-drive end
The 3rd sensor group 31 of icing signal outside bearing vibration signal and cabin, and the third that is connect with 3rd sensor group 31
PLC module group.
Wherein, temperature signal realizes temperature in cabin by using 8 PT100 and 1 Temperature Humidity Sensors in the cabin
The monitoring of degree.The PT100 temperature signals are resistance values, and conversion is received and processed by the PT100 modules in third PLC module group
For temperature data value.The temperature signal of the Temperature Humidity Sensor exports 4~20mA current signals, by third PLC module group
Current signal collection module, which receives and processes, is converted into temperature value.Achieve the purpose that monitoring machine indoor environment temperature, can be used to
Assess heat dissipation effect.
Cabin cabinet power current signal is by using an AC current transducer.AC current transducer output 4~
The current signal of 20mA is received and processed by the current signal collection module in third PLC module group and is converted into current values.It reaches
To the purpose of monitoring cabin in-fighting electricity.
Pitch-controlled system power current signal is also by using an AC current transducer.The current transducer equally exports
The current signal of 4~20mA is received and processed by the current signal collection module in third PLC module group and is converted into electric current number
Value.Achieve the purpose that monitor pitch-controlled system power consumption.
Yaw motor current signal is also by using an AC current transducer.The current transducer equally output 4~
The current signal of 20mA is received and processed by the current signal collection module in third PLC module group and is converted into current values.It reaches
To the purpose of monitoring yaw motor power consumption.
Spindle bearing holder internal pressure signal is by using 4 pressure sensors.4 pressure sensors export 4
The current signal of~20mA is received and processed by the current signal collection module in third PLC module group and is converted into pressure value.
Achieve the purpose that monitor spindle bearing holder interior oil pressure changing.
Gear-box toggle displacement signal realizes gear-box toggle by using two eddy current displacement sensors
Displacement.The eddy current displacement sensor exports the current signal of 4~20mA, is acquired by the current signal in third PLC module group
Module, which receives and processes, is converted into shift value.Achieve the purpose that monitor gear-box toggle Z-direction displacement.
Housing bearing seat displacement signal is to realize the position of housing bearing seat by using two eddy current displacement sensors
It moves.The eddy current displacement sensor equally current signal of 4~20mA of output, is adopted by the current signal in third PLC module group
Collection module, which receives and processes, is converted into shift value.Achieve the purpose that monitoring rack bearing seat moves.
Moisture signal realizes the monitoring of humidity in cabin by using a Temperature Humidity Sensor in cabin.The humiture
The moisture signal of sensor exports the current signal of 4~20mA, is received by the current signal collection module in third PLC module group
And it handles and is converted into humidity.Achieve the purpose that monitoring tower base ambient humidity, can be used to assess humidity has machine below deck equipment
It is no to have an impact.
The outer atmospheric pressure signal of cabin is by using an atmosphere pressure sensor.The signal output of the atmosphere pressure sensor is 4
The current signal of~20mA is received and processed by the current signal collection module in third PLC module group and is converted into atmospheric pressure
Numerical value.Achieve the purpose that monitor atmospheric pressure, can be used to assess atmospheric pressure and whether have an impact to Wind turbines.
Base bearing front-end bearing pedestal radial vibration signal is monitored by using an intermediate frequency IEPE acceleration transducer.In this
The output of frequency IEPE acceleration transducers is 7~17V voltage signals, is acquired by the high-frequency vibration signal in third PLC module group
Module, which receives and processes, is converted into vibration frequency numerical value.Achieve the purpose that monitor base bearing front-end bearing pedestal radial vibration.
Base bearing rear bearing block axial vibration signal is monitored also by an intermediate frequency IEPE acceleration transducer is used.It should
Intermediate frequency IEPE acceleration transducers are same as above, and are exported 7~17V voltage signals, are adopted by the high-frequency vibration signal in third PLC module group
Collection module, which receives and processes, is converted into vibration frequency numerical value.Achieve the purpose that monitor base bearing rear bearing block axial vibration.
1 grade of gear ring vibration signal of gear-box is still to be monitored using an intermediate frequency IEPE acceleration transducer.In this
The output of frequency IEPE acceleration transducers is 7~17V voltage signals, is acquired by the high-frequency vibration signal in third PLC module group
Module, which receives and processes, is converted into vibration frequency numerical value.Achieve the purpose that monitor 1 grade of gear ring vibration of gear-box.
2 grades of gear ring vibration signals of gear-box are monitored using a high-frequency I EPE acceleration transducer.The high frequency
The output of IEPE acceleration transducers is 4~20V voltage signals, and mould is acquired by the high-frequency vibration signal in third PLC module group
Block, which receives and processes, is converted into vibration frequency numerical value.Achieve the purpose that monitor 2 grades of gear ring vibrations of gear-box.
Gearbox high-speed shaft vibration signal is also to be monitored using a high-frequency I EPE acceleration transducer.The high frequency
The output of IEPE acceleration transducers is 4~20V voltage signals, and mould is acquired by the high-frequency vibration signal in third PLC module group
Block, which receives and processes, is converted into vibration frequency numerical value.Achieve the purpose that monitor gearbox high-speed shaft vibration.
Gearbox high-speed axial direction vibration signal is monitored using a high-frequency I EPE acceleration transducer.The high frequency
The output of IEPE acceleration transducers is 4~20V voltage signals, and mould is acquired by the high-frequency vibration signal in third PLC module group
Block, which receives and processes, is converted into vibration frequency numerical value.Achieve the purpose that monitoring gearbox high-speed axially vibrates.
Generator drive end bearing vibration signal is still monitored using a high-frequency I EPE acceleration transducer.The height
The output of frequency IEPE acceleration transducers is 4~20V voltage signals, is acquired by the high-frequency vibration signal in third PLC module group
Module, which receives and processes, is converted into vibration frequency numerical value.Achieve the purpose that monitor the vibration of generator drive end bearing.
Generator non-driven-end bearing vibration signal is still monitored using a high-frequency I EPE acceleration transducer.It should
The output of high-frequency I EPE acceleration transducers is 4~20V voltage signals, is adopted by the high-frequency vibration signal in third PLC module group
Collection module, which receives and processes, is converted into vibration frequency numerical value.Achieve the purpose that monitor the vibration of generator non-driven-end bearing.
Icing signal is monitored by using a freezing sensor outside cabin.The freezing sensor uses RS485
RS485 module transfer digital signal of the data line into third PLC module group, digital signal include whether icing and icing thickness
Etc. information.Achieve the purpose that whether monitoring machine has icing out of my cabin, whether Wind turbines are affected for evaluating to freeze.
4th slave station system 4 include for acquiring blade loading signal, main-shaft torque signal connects spiral shell with impeller spindle
Bolt pre-tightens the 4th sensor group 41 of force signal, and the 4th PLC module group being connect with the 4th sensor group 41.
Wherein, blade loading signal realizes the monitoring of blade loading by 36 T-type foil gauges.Each two T-type
Foil gauge is one group, is connected into a T-type foil gauge full-bridge circuit.T-type foil gauge full-bridge circuit is separately positioned on three blades
On different parts, the blade root of every blade, away from blade root 800mm, away from two T-type foil gauge full-bridges electricity are pasted at blade root 24m respectively
Road.The full-bridge circuit that 36 T-type foil gauges are connected into is used to measure the microstrain of blade different parts, by the 4th PLC moulds
Dedicated survey strain module, which receives and processes, in block group is converted into load value to get the load value that blade is born is gone out.Reach prison
The purpose for surveying blade loading is used as the reference of blade loading theoretically simulation calculation.
Main-shaft torque signal is connected into full-bridge circuit by using Y type foil gauges and measures microstrain, then calculates base bearing
The torque value received.The Y type foil gauges are attached to the butt end of main shaft.Y type foil gauge full-bridge circuit output voltage signals, by the 4th PLC
Special survey strain module in module group, which receives and processes, is converted into torque value.Achieve the purpose that monitor main-shaft torque, be used for
Reference as main-shaft torque theoretically simulation calculation.
Impeller spindle connection tools for bolts ' pretension force signal is to realize monitoring using washer type tools for bolts ' pretension force snesor.The spiral shell
Bolt pre-tighten force sensor measuring microstrain, output voltage signal, by the 4th PLC module group acquisition microstrain module receive and
Processing is converted into tools for bolts ' pretension torque value.Reach the monitoring that pre-fastening moment value size is born to the bolt that impeller is connected with main shaft.
Preferred embodiment is to respectively further comprise a CPU mould in the main website PLC module group and the 4th slave station PLC module group
Block, for handling main website sensor group, first sensor group, second sensor group, 3rd sensor group and the 4th sensor group
Collected signal data.
Above-mentioned first slave station system 1, the second slave station system 2, third slave station system 3 and the 4th slave station system 4 with master
System of standing 5 connects, for by each slave station system acquisition to data be all transferred in main station system and store.And the main website
System 5 using cable connection Wind turbines opto-electronic conversion machine 6, the opto-electronic conversion machine 6 further through optical fiber switch 7 and optical fiber with
The SCADA system 8 of the Wind turbines connects.The SCADA system 8 is with File Transfer Protocol periodically from the master of the application on-line monitoring system
Wind turbines signal data is read in system of standing 5, and uses the form of cloud atlas or label on display platform after handling by analysis
It has been shown that, to pinpoint the problems in time, solves the problems, such as to provide advantageous support to be follow-up.
More specifically, make between the main station system 5, the first slave station system 1, the second slave station system 2, third slave station system 3
Signal data transmission is carried out with photoelectric coupling module and optical fiber.And due between the 4th slave station system 4 and third slave station system 3
Data line or optical fiber inconvenient to use connect, then between the 4th slave station system 4 and third slave station system 3 using bluetooth module into
The data transmission that row is wireless is then conducive to the data signal transmission that wheel hub is carried out with the slave station system in cabin.
The present invention solves current wind power generating set and monitors the incomplete situation of information on-line, can pass through said one main website
System and four slave station systems carry out comprehensive, real-time on-line monitoring to the various states parameter of wind power generating set, not only
It can realize the monitoring of 108 monitored parameters, be provided a strong guarantee for the operation of wind power generating set, moreover it is possible to be arrived by on-line monitoring
Data information be new architecture design and improvement bring reference frame.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, this
Field technology personnel make a little simple modification, equivalent variations or modification using the technology contents of the disclosure above, all fall within this hair
In bright protection domain.
Claims (10)
1. a kind of wind power generating set on-line monitoring system, which is characterized in that including sequentially connected main station system, the first slave station
System, the second slave station system, third slave station system and the 4th slave station system,
The main station system is arranged on the section tower barrel platform of the bottom of wind power generating set, including is used to acquire bottom section tower vibration letter
Number, moisture signal in temperature signal, bottom section tower moment of flexure signal, auxiliary transformer current signal and bottom section tower in the section tower of bottom
Main website sensor group, and the main website PLC module group that is connect with the main website sensor group；
The first slave station system is arranged on the tower barrel platform of wind power generating set stage casing, including is used to acquire stage casing tower vibration
Signal, stage casing tower moment of flexure signal connect the first sensor group of tools for bolts ' pretension force signal with stage casing tower, and with described
First PLC module group of one sensor group connection；
The second slave station system setting is on the section tower barrel platform of wind power generating set top, including is used to acquire top section tower vibration
Signal, top section tower shake signal, top section tower temperature signal, top section tower moment of flexure signal, top section tower torque signal and top
Section tower connects the second sensor group of tools for bolts ' pretension force signal, and the 2nd PLC moulds being connect with the second sensor group
Block group；
The third slave station system is arranged inside wind generating set engine room, including is used to acquire temperature signal in cabin, machine
Tank power current signal, pitch-controlled system power current signal, yaw motor current signal, spindle bearing holder internal pressure letter
Number, the outer atmospheric pressure signal of moisture signal, cabin, master in gear-box toggle displacement signal, housing bearing seat displacement signal, cabin
Bearing front-end bearing pedestal radial vibration signal, base bearing rear bearing block axial vibration signal, gear-box 1 grade of gear ring vibration signal, tooth
2 grades of gear ring vibration signals of roller box, gearbox high-speed shaft vibration signal, gearbox high-speed axial direction vibration signal, generator drive end
The 3rd sensor group of icing signal, Yi Jiyu outside bearing vibration signal, generator non-driven-end bearing vibration signal and cabin
The third PLC module group of the 3rd sensor group connection；
The 4th slave station system is arranged inside wind generator unit wheel hub, including is used to acquire blade loading signal, main shaft
Torque signal connects the 4th sensor group of tools for bolts ' pretension force signal with impeller spindle, and is connect with the 4th sensor group
The 4th PLC module group.
2. wind power generating set on-line monitoring system according to claim 1, which is characterized in that the main website sensor group
Include for acquiring the condenser type vibrating sensor of bottom section tower vibration signal, for acquiring temperature signal in the section tower of bottom
PT100 temperature sensors, the T-type foil gauge for acquiring bottom section tower moment of flexure signal are believed for acquiring auxiliary transformer electric current
Number AC current transducer, for acquire bottom section tower in moisture signal Temperature Humidity Sensor.
3. wind power generating set on-line monitoring system according to claim 2, which is characterized in that the main website sensor group
Including five PT100 temperature sensors.
4. wind power generating set on-line monitoring system according to claim 1, which is characterized in that the first sensor group
Include for acquiring the condenser type vibrating sensor of stage casing tower vibration signal, the T-type for acquiring stage casing tower moment of flexure signal
Foil gauge connects the washer type tools for bolts ' pretension force snesor of tools for bolts ' pretension force signal with for acquiring stage casing tower.
5. wind power generating set on-line monitoring system according to claim 1, which is characterized in that the second sensor group
It include the inclination angle that signal is shaken for acquiring the condenser type vibrating sensor of top section tower vibration signal, for acquiring top section tower
Sensor, two PT100 temperature sensors for acquiring top section tower temperature signal push up section tower moment of flexure signal for acquiring
T-type foil gauge, for acquire top section tower torque signal Y types foil gauge, for acquire top section tower connect tools for bolts ' pretension
The washer type tools for bolts ' pretension force snesor of force signal.
6. wind power generating set on-line monitoring system according to claim 1, which is characterized in that the 3rd sensor group
Include for acquiring 8 of temperature signal in cabin PT100 temperature sensors and 1 Temperature Humidity Sensor, for acquiring cabin
The AC current transducer of cabinet power current signal, the AC current transducer for acquiring pitch-controlled system power current signal,
For acquire yaw motor current signal AC current transducer, 4 for acquiring spindle bearing holder internal pressure signal
Pressure sensor, two eddy current displacement sensors for acquiring gear-box toggle displacement signal, for acquiring rack axis
Two eddy current displacement sensors of bearing displacement signal, for acquiring the Temperature Humidity Sensor of moisture signal in cabin, being used for
The harvester atmosphere pressure sensor of atmospheric pressure signal, the intermediate frequency for acquiring base bearing front-end bearing pedestal radial vibration signal out of my cabin
IEPE acceleration transducers, are used the intermediate frequency IEPE acceleration transducers for acquiring base bearing rear bearing block axial vibration signal
In the intermediate frequency IEPE acceleration transducers of acquisition 1 grade of gear ring vibration signal of gear-box, for acquiring 2 grades of gear ring vibration letters of gear-box
Number high-frequency I EPE acceleration transducers, the high-frequency I EPE acceleration transducers for acquiring gearbox high-speed shaft vibration signal,
For acquiring the high-frequency I EPE acceleration transducers of generator drive end bearing vibration signal, for acquiring generator anti-drive end
The high-frequency I EPE acceleration transducers of bearing vibration signal, and the freezing sensor for harvester icing signal out of my cabin.
7. wind power generating set on-line monitoring system according to claim 1, which is characterized in that the 4th sensor group
Include Y types foil gauge for acquiring the T-type foil gauge of blade loading signal, for acquiring main-shaft torque signal, for acquiring
Impeller spindle connects the washer type tools for bolts ' pretension force snesor of tools for bolts ' pretension force signal.
8. wind power generating set on-line monitoring system according to claim 7, which is characterized in that the 4th sensor group
Including 36 T-type foil gauges, T-type foil gauge is one group described in each two, is connected into a T-type foil gauge full-bridge circuit, institute
It states T-type foil gauge full-bridge circuit to be separately positioned on the different parts of three blades, the blade root of every blade, away from blade root 800mm
Place, away from T-type foil gauge full-bridge circuit described in pasting two groups respectively at blade root 24m, the full-bridge that 36 T-type foil gauges are connected into
Circuit is used to measure the microstrain of blade different parts.
9. wind power generating set on-line monitoring system according to claim 1, which is characterized in that the main station system and
A CPU module is further respectively had in four slave station systems.
10. wind power generating set on-line monitoring system according to claim 1, which is characterized in that the main station system,
One slave station system, the second slave station system and third slave station system carry out signal number by photoelectric coupling module and optical fiber between each other
According to transmission；Wireless data transmission is carried out by bluetooth module between the third slave station system and the 4th slave station system；The master
The master control system connecting communication that system of standing passes through photoelectric converter, optical fiber switch and Wind turbines.
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| CN110160682A (en) * | 2019-06-17 | 2019-08-23 | 三一重能有限公司 | A kind of load monitoring system and method |
| CN113339203A (en) * | 2021-04-16 | 2021-09-03 | 大唐新疆清洁能源有限公司 | Alarm system for looseness of bolts of wind turbine tower |
| CN115750229A (en) * | 2022-11-10 | 2023-03-07 | 中国华能集团清洁能源技术研究院有限公司 | Wind turbine generator system all-state monitoring system based on multi-source sensing |
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