CN104165689B - Yaw noise detection method and device of wind turbine generator - Google Patents
Yaw noise detection method and device of wind turbine generator Download PDFInfo
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- CN104165689B CN104165689B CN201410424793.XA CN201410424793A CN104165689B CN 104165689 B CN104165689 B CN 104165689B CN 201410424793 A CN201410424793 A CN 201410424793A CN 104165689 B CN104165689 B CN 104165689B
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Abstract
The invention discloses a yaw noise detection method of a wind turbine generator. The detection method includes the steps that current signals and voltage signals of a yaw motor are obtained firstly, the obtained current numerical values and voltage numerical values are processed, and a power fluctuation curve of the yaw motor is drawn; the reason for yaw noise is analyzed according to the power fluctuation curve of the yaw motor. The invention further discloses a detection device applying the detection method. The detection device comprises a breaker, a current transformer, a current transducer, a voltage transformer, a voltage transducer and a PLC, wherein the breaker is connected with the yaw motor in a master control cabinet of the wind turbine generator. According to the yaw noise detection method and device of the wind turbine generator, the current values and the voltage values of the yaw motor are collected, the power of the yaw motor is computed in real time, the power fluctuation curve is drawn and is analyzed, the reason for the yaw noise of the wind turbine generator is obtained, and a basis is provided for solving the yaw noise. The detection method is safe, reliable and easy and convenient to implement.
Description
Technical field
The present invention relates to noise detection technique field, more particularly to a kind of Wind turbines driftage noise detecting method and inspection
Survey device.
Background technology
The yaw system of wind power generating set (hereinafter referred to as Wind turbines) can drive the cabin of Wind turbines around yaw axis
Hold rotation, complete the driftage of Wind turbines, enable Wind turbines to capture maximal wind-energy.But can produce huge in During yaw
Noise, there is potential safety hazard in the even running to Wind turbines, and cause sound pollution to the surrounding area of Wind turbines,
The daily productive life of impact nearby residents.In During yaw, the brakes of Wind turbines is subject to the materials such as hydraulic oil
Pollution is corroded, and makes yaw system extraordinary noise, even results in brake disc surface abrasion, causes the things such as yaw system inefficacy
Therefore；In addition, brake disc surface roughness is overproof and yaw system drive disk assembly lost efficacy and all can lead to occur punching in During yaw
Hit load, cause the appearance of noise of going off course.
For avoiding yaw system that serious fault occurs, need the driftage noise of Wind turbines is detected, find product
The reason raw driftage noise, it is addressed driftage noise problem.Detection method currently for driftage noise is mainly based upon skill
The micro-judgment of art personnel or monitored by vibration monitor system.Method based on technical staff's micro-judgment needs experienced
, there is a certain degree of subjective impact and potential safety hazard in technical staff's reconnaissance at criminal scene；The method monitored by vibration monitor system
Need, in Wind turbines, vibrating sensor is installed, and some portion faces of Wind turbines are not suitable for even to install vibration
Sensor, so vibration monitor system has that installation is limited.
As can be seen here, above-mentioned existing yaw system noise detecting method obviously still suffers from respective defect, needs badly into one
Step is improved.Therefore, how to found one kind safely, conveniently and testing result reliable Wind turbines driftage noise detecting method and
Detection means, is currently to solve the problems, such as one of important topic of Wind turbines yaw system extraordinary noise.
Content of the invention
The technical problem to be solved in the present invention is to provide a kind of Wind turbines driftage noise safe and reliable and easy and simple to handle
Detection method so as to the determination of safe and convenient cause go off course noise the reason, thus overcoming existing yaw system noise measuring
The deficiency of method.
For solving above-mentioned technical problem, the invention provides a kind of Wind turbines driftage noise detecting method, detecting step
For:
(1) obtain electric current and the voltage signal of yaw motor, the electric current obtaining and voltage value are processed, and draws
Go out the power swing curve of yaw motor；
(2) the reason cause driftage noise according to the power swing tracing analysiss of yaw motor.
Further, the ripple that the magnitude of power that the power swing curve of described yaw motor occurs continuing for some time declines
Dynamic, and when fluctuating, magnitude of power is in slowly varying rule, then cause to go off course noise the reason for Wind turbines yaw system system
Moving plate is by hydraulic oil Substances Pollution.
Further, the power swing curve of described yaw motor occurs continuing accidental fluctuation, then cause noise of going off course
The reason for Wind turbines yaw system brake disc surface roughness overproof.
Further, fluctuation in very short time in the power swing curve of described yaw motor, and power number when fluctuating
Value in rapidly Changing Pattern, then cause to go off course noise the reason lost efficacy for the drive disk assembly of Wind turbines yaw system.
Present invention technical problem also to be solved is that safely, conveniently and the reliable Wind turbines of testing result are inclined for offer one kind
Boat noise detection apparatus so as to convenient reliable determination cause go off course noise the reason, thus overcoming existing yaw system to make an uproar
The deficiency of sound detection device.
For solving above-mentioned technical problem, realize above-mentioned Wind turbines and go off course noise detecting method the invention provides a kind of
Detection means, including chopper, current transformer, current transducer, voltage transformer, voltage transmitter and PLC；Institute
State chopper to be connected with yaw motor in Wind turbines control cabinet, the outfan of described chopper respectively with current transformer and
The input of voltage transformer connects, and the outfan of described current transformer is connected with the input of current transducer, described electricity
The outfan of pressure transformer is connected with the input of voltage transmitter, and the outfan of described current transducer and voltage transmitter is equal
It is connected with described PLC.
Improve further, the input of described chopper is connected with the corresponding catalyst of yaw motor in Wind turbines control cabinet
Connecting terminal is connected.
Using above-mentioned technical scheme, the present invention at least has advantages below：
1st, the present invention goes off course noise detecting method by gathering electric current and the magnitude of voltage of yaw motor, calculates driftage in real time electric
The power of machine, and draw the power swing curve of yaw motor, through to the record of power swing curve and analysis, drawing and causing wind
The reason group of motors driftage noise, provide reliable basis for solving driftage noise problem, solving driftage noise measuring must technology
Personnel on site reconnoitres and installs limited problem with vibration monitor system.
2nd, present invention driftage noise detection apparatus integrated level is high, and the vibrating mass away from Wind turbines yaw system, keeps away
Exempt from the vibration interference of part vibrated, cause test data accurately and reliably.
3rd, present invention driftage noise detecting method is safe and reliable and easy and simple to handle.
Brief description
Above-mentioned be only technical solution of the present invention general introduction, in order to better understand the technological means of the present invention, below
In conjunction with accompanying drawing, the present invention is described in further detail with specific embodiment.
Fig. 1 is the corresponding power of driftage noise causing after brake disc is subject to the Substances Pollution such as hydraulic oil；
Fig. 2 is the overproof corresponding power of driftage noise causing of brake disc surface roughness；
Fig. 3 is the corresponding power of driftage noise that the inefficacy of yaw system drive disk assembly causes；
Fig. 4 is the structural representation of Wind turbines driftage noise detection apparatus of the present invention.
Specific embodiment
In Wind turbines yaw system, the power of yaw motor can be affected by yaw system difference operating condition：
Such as the first operating mode, when the brake disc of Wind turbines yaw system is by Substances Pollution such as hydraulic oil, contaminated in brake disc
The coefficient of friction in region reduces, and leads to yaw motor power drop now, and because brake disc is by Substances Pollution such as hydraulic oil
When typically all can pollute certain continuum, therefore the decline of driftage power can continue necessarily according to the magnitude range of Polluted area
Time, and magnitude of power is in slowly varying rule, brake disc is inclined by cause after the Substances Pollution such as hydraulic oil as shown in Figure 1
Boat noise corresponding power features curve chart；Second operating mode, when the brake disc surface roughness of Wind turbines yaw system surpasses
It may appear that driftage assumes sticking friction phenomenon during difference, cause to damp constantly random change, lead to the power of yaw motor to be held
Continuous accidental fluctuation, the overproof driftage noise corresponding power features curve causing of brake disc surface roughness as shown in Figure 2
Figure；The third operating mode, when the drive disk assembly of Wind turbines yaw system lost efficacy, i.e. the tooth surface mill of yawing gear ring or little gear
During loss effect, can cause in During yaw and shock loading occurs, lead to the power of yaw motor to change in very short time, and work(
Rate score is in rapidly Changing Pattern, the corresponding power of driftage noise that the inefficacy of yaw system drive disk assembly causes as shown in Figure 3
Characteristic curve diagram.
Wind turbines driftage noise detecting method of the present invention is namely based on the driftage noise correspondence that above-mentioned difference operating mode produces
Carry out in the principle of different yaw motor power swing curves.
Wind turbines driftage noise detection apparatus of the present invention pass through to gather electric current and the voltage data of yaw motor, then pass through
Data processing, obtains yaw motor power swing curve, according to the numerical fluctuations situation of power swing curve, analyzes yaw system
The generating unit of noise and producing cause, provide reliable basis for solving driftage noise problem.
Referring to the drawings shown in 4, as the present invention one specific embodiment：Wind turbines driftage noise detection apparatus 10 of the present invention
Including chopper 4, current transformer 5, current transducer 6, voltage transformer 7, voltage transmitter 8 and PLC 9.Open circuit
The connection terminal of the input of device 4 catalyst 2 corresponding with yaw motor in Wind turbines control cabinet 13 is connected, chopper 4
Outfan is connected with the input of current transformer 5 and voltage transformer 7 respectively, and the outfan of current transformer 5 is become with electric current
The input sending device 6 connects, and the outfan of voltage transformer 7 is connected with the input of voltage transmitter 8, current transducer 6 He
The outfan of voltage transmitter 8 is all connected with PLC 9.
Voltage transformer 7 summation current transformer 5 when catalyst 2 and chopper 4 all close, first in detection means 10
Obtain the voltage and current value of yaw motor 3 respectively, and current transformer 5 by the current value of yaw motor 3 just successive step to 0-
5A, then voltage transformer 7 summation current transformer 5 by magnitude of voltage and adjustment after current value export respectively to voltage transmitter 8
With current transducer 6, the magnitude of voltage of acquisition and current value are transformed into PLC control by voltage transmitter 8 and current transducer 6 afterwards
It is transferred to PLC 9, the voltage and current acquiring data is passed through number by PLC 9 again after the detectable data of device 9
Arrange according to processing to carry out concentrating with analysis software, draw out the power swing curve of yaw motor 3.Cause according to different reasons
Driftage noise corresponding power features curve chart, analysis driftage noise Producing reason.
Wind turbines driftage noise detection apparatus of the present invention are mountable to, away from the remote monitoring room of Wind turbines, can pacify
Entirely, easily complete the detection of noise reason of going off course.
The present invention, under conditions of in accordance with wind energy turbine set safety codes, overcomes the deficiency of existing detection method, more convenient
Reliable determine the reason cause to go off course noise it is achieved that noise measuring problem that Wind turbines are gone off course effectively solving it is ensured that
Wind turbines reach design working life, improve the running quality of Wind turbines again, more embody the environment of Wind turbines
Friendly feature.
The above, be only presently preferred embodiments of the present invention, and not the present invention is made with any pro forma restriction, this
Skilled person makes a little simple modification, equivalent variations or modification using the technology contents of the disclosure above, all falls within this
In bright protection domain.
Claims (3)
1. a kind of Wind turbines driftage noise detecting method is it is characterised in that detecting step is as follows:
(1) obtain electric current and the voltage signal of yaw motor, the electric current obtaining and voltage value are processed, and draw out partially
The power swing curve of avionics machine；
(2) the reason cause driftage noise according to the power swing tracing analysiss of yaw motor；
The fluctuation that the magnitude of power that the power swing curve of described yaw motor occurs continuing for some time declines, and work(when fluctuating
Rate score be in slowly varying rule, then cause go off course noise the reason for Wind turbines yaw system brake disc by hydraulic oil thing
Matter pollutes；
The power swing curve of described yaw motor occurs continuing accidental fluctuation, then cause to go off course noise the reason be wind turbine
The brake disc surface roughness of group yaw system is overproof；
Fluctuation in very short time in the power swing curve of described yaw motor, and when fluctuating, magnitude of power is in rapidly to change rule
Rule, then cause go off course noise the reason for Wind turbines yaw system drive disk assembly lost efficacy.
2. a kind of detection means of the Wind turbines driftage noise detecting method realized described in claim 1 is it is characterised in that wrap
Include chopper, current transformer, current transducer, voltage transformer, voltage transmitter and PLC；Described chopper
Input is connected with yaw motor in Wind turbines control cabinet, the outfan of described chopper respectively with current transformer and electricity
The input of pressure transformer connects, and the outfan of described current transformer is connected with the input of current transducer, described voltage
The outfan of transformer is connected with the input of voltage transmitter, the outfan of described current transducer and voltage transmitter all with
Described PLC is connected.
3. detection means according to claim 2 is it is characterised in that the input of described chopper and Wind turbines master control
In cabinet, yaw motor corresponding catalyst connection terminal is connected.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410424793.XA CN104165689B (en) | 2014-08-26 | 2014-08-26 | Yaw noise detection method and device of wind turbine generator |
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| CN201410424793.XA CN104165689B (en) | 2014-08-26 | 2014-08-26 | Yaw noise detection method and device of wind turbine generator |
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| CN104165689A CN104165689A (en) | 2014-11-26 |
| CN104165689B true CN104165689B (en) | 2017-02-22 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108075689B (en) * | 2018-01-09 | 2023-06-09 | 福建船政交通职业学院 | Noise detection braking system of direct current motor and application method thereof |
| CN112901427A (en) * | 2021-03-26 | 2021-06-04 | 华润风电(龙岩)有限公司 | Wind turbine generator system motor monitoring system and wind power generation field |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1288505A (en) * | 1998-01-14 | 2001-03-21 | 丹麦控制工程公司 | Method for measuring and controlling oscillations in a wind turbine |
| CN101930486A (en) * | 2010-07-12 | 2010-12-29 | 沈阳工业大学 | A device and method for predicting load index of wind turbines in a wind farm |
| CN202917983U (en) * | 2012-11-16 | 2013-05-01 | 国电联合动力技术有限公司 | Wind turbine generator reactive adjusting system based on wind power plant AQC |
| CN103573550A (en) * | 2012-07-27 | 2014-02-12 | 华锐风电科技(集团)股份有限公司 | Control method and system of wind turbine |
-
2014
- 2014-08-26 CN CN201410424793.XA patent/CN104165689B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1288505A (en) * | 1998-01-14 | 2001-03-21 | 丹麦控制工程公司 | Method for measuring and controlling oscillations in a wind turbine |
| CN101930486A (en) * | 2010-07-12 | 2010-12-29 | 沈阳工业大学 | A device and method for predicting load index of wind turbines in a wind farm |
| CN103573550A (en) * | 2012-07-27 | 2014-02-12 | 华锐风电科技(集团)股份有限公司 | Control method and system of wind turbine |
| CN202917983U (en) * | 2012-11-16 | 2013-05-01 | 国电联合动力技术有限公司 | Wind turbine generator reactive adjusting system based on wind power plant AQC |
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Effective date of registration: 20191206 Address after: 071051 Baoding City, Hebei high tech Development Zone, Wind Street No. 88 Patentee after: Guodian United Power Technology (Baoding) Co., Ltd. Address before: 100000, No. 1, building 16, No. 8 West Fourth Ring Road, Beijing, Haidian District Patentee before: Guodian United Power Technology Co., Ltd. |
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Address after: 071051 No.88, Fengfeng street, high tech Development Zone, Baoding City, Hebei Province Patentee after: Guoneng United Power Technology (Baoding) Co.,Ltd. Address before: 071051 No.88, Fengfeng street, high tech Development Zone, Baoding City, Hebei Province Patentee before: GUODIAN UNITED POWER TECHNOLOGY (BAODING) Co.,Ltd. |
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