CN104165689A - 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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- CN104165689A CN104165689A CN201410424793.XA CN201410424793A CN104165689A CN 104165689 A CN104165689 A CN 104165689A CN 201410424793 A CN201410424793 A CN 201410424793A CN 104165689 A CN104165689 A CN 104165689A
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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, particularly relate to a kind of wind-powered electricity generation set yaw noise detecting method and pick-up unit.
Background technology
The yaw system of wind power generating set (hereinafter to be referred as wind-powered electricity generation unit) can drive the cabin of wind-powered electricity generation unit around driftage bearing rotary, completes the driftage of wind-powered electricity generation unit, makes wind-powered electricity generation unit can capture maximal wind-energy.But in driftage process, can produce huge noise, the even running of wind-powered electricity generation unit be existed to potential safety hazard, and noise pollution is caused in the surrounding area of wind-powered electricity generation unit, affect the daily productive life of periphery resident.In driftage process, the brake system of wind-powered electricity generation unit is subject to the pollution erosion of hydraulic pressure wet goods material, makes yaw system occur extraordinary noise, even causes brake disc surface abrasion, causes the accidents such as yaw system inefficacy; In addition, the overproof and yaw system drive disk assembly of brake disc surfaceness lost efficacy and all can cause occurring shock load in driftage process, caused the appearance of driftage noise.
For avoiding yaw system to occur serious fault, need to detect the driftage noise of wind-powered electricity generation unit, find the reason that produces driftage noise, solved driftage noise problem.Detection method for driftage noise is mainly the micro-judgment based on technician or monitors by vibration monitor system at present.Method based on technician's micro-judgment needs experienced technician's site inspection, has subjectivity impact and potential safety hazard to a certain degree; The method of monitoring by vibration monitor system need to be installed vibration transducer in wind-powered electricity generation unit, and some surfaces, position of wind-powered electricity generation unit are not suitable for even cannot installing vibration transducer, so vibration monitor system exists the limited problem of installing.
As can be seen here, obviously still there is defect separately in above-mentioned existing yaw system noise detecting method, needs further improvement badly.Therefore, how founding a kind of safe, convenient and testing result reliable wind-powered electricity generation set yaw noise detecting method and pick-up unit, is one of important topic of current solution wind-powered electricity generation unit yaw system extraordinary noise problem.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of wind-powered electricity generation set yaw noise detecting method safe, reliable and easy and simple to handle, makes definite reason that causes driftage noise of its safe and convenient, thereby overcomes the deficiency of existing yaw system noise detecting method.
For solving the problems of the technologies described above, the invention provides a kind of wind-powered electricity generation set yaw noise detecting method, detecting step is:
(1) obtain electric current and the voltage signal of yaw motor, the electric current obtaining and voltage value are processed, and draw out the power swing curve of yaw motor;
(2) according to the power swing tracing analysis of yaw motor, cause the reason of driftage noise.
Further, there is the fluctuation that the magnitude of power that continues for some time declines in the power swing curve of described yaw motor, and magnitude of power is slow Changing Pattern during fluctuation, cause the former of driftage noise because the brake disc of wind turbine group yaw system is polluted by hydraulic oil material.
Further, the power swing curve of described yaw motor occurs continuing random fluctuation, causes the former of driftage noise because the brake disc surfaceness of wind turbine group yaw system is overproof.
Further, there is fluctuation in the utmost point short time in the power swing curve of described yaw motor, and magnitude of power is Changing Pattern rapidly during fluctuation, causes the former of driftage noise because the drive disk assembly of wind turbine group yaw system lost efficacy.
The technical matters that the present invention also will solve is to provide a kind of safe, the convenient and reliable wind-powered electricity generation set yaw of testing result noise detection apparatus, make its convenient definite reason that causes driftage noise reliably, thereby overcome the deficiency of existing yaw system noise detection apparatus.
For solving the problems of the technologies described above, the invention provides a kind of pick-up unit of realizing above-mentioned wind-powered electricity generation set yaw noise detecting method, comprise isolating switch, current transformer, current transducer, voltage transformer (VT), voltage transmitter and PLC controller; Described isolating switch is connected with yaw motor in wind-powered electricity generation unit master control cabinet, the output terminal of described isolating switch is connected with the input end of current transformer and voltage transformer (VT) respectively, the output terminal of described current transformer is connected with the input end of current transducer, the output terminal of described voltage transformer (VT) is connected with the input end of voltage transmitter, and the output terminal of described current transducer and voltage transmitter is all connected with described PLC controller.
Further improve, the contactor splicing ear that the input end of described isolating switch is corresponding with yaw motor in wind-powered electricity generation unit master control cabinet is connected.
Adopt above-mentioned technical scheme, the present invention at least has the following advantages:
1, the present invention goes off course noise detecting method by gathering electric current and the magnitude of voltage of yaw motor, calculate in real time the power of yaw motor, and draw the power swing curve of yaw motor, warp is to the record of power swing curve and analysis, draw the reason that causes wind-powered electricity generation set yaw noise, for solving driftage noise problem, provide reliable basis, solved driftage walkaway palpus technician's site inspection and vibration monitor system limited problem is installed.
2, the present invention's noise detection apparatus integrated level of going off course is high, and away from the vibrating mass of wind-powered electricity generation unit yaw system, has avoided being subject to the vibration interference of vibrating mass, causes test data accurately and reliably.
3, the present invention's noise detecting method of going off course is safe, reliable and easy and simple to handle.
Accompanying drawing explanation
Above-mentioned is only the general introduction of technical solution of the present invention, and in order to better understand technological means of the present invention, below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail.
Fig. 1 is that brake disc is subject to power corresponding to driftage noise causing after hydraulic pressure wet goods material pollutes;
Fig. 2 is overproof power corresponding to driftage noise causing of brake disc surfaceness;
Fig. 3 is power corresponding to driftage noise that yaw system drive disk assembly lost efficacy and causes;
Fig. 4 is the structural representation of wind-powered electricity generation set yaw noise detection apparatus of the present invention.
Embodiment
In wind-powered electricity generation unit yaw system, the power of yaw motor can be subject to the impact of the different operating conditions of yaw system: the first operating mode for example, when the brake disc of wind-powered electricity generation unit yaw system is polluted by hydraulic pressure wet goods material, on brake disc, the friction factor of poluted region reduces, cause yaw motor power now to decline, while being polluted by hydraulic pressure wet goods material because of brake disc again, generally all can pollute certain continuum, therefore the decline meeting of driftage power is according to the magnitude range certain time of Polluted area, and magnitude of power is slow Changing Pattern, brake disc is subject to power features curve map corresponding to driftage noise causing after hydraulic pressure wet goods material pollutes as shown in Figure 1, the second operating mode, when the brake disc surfaceness of wind-powered electricity generation unit yaw system is overproof, there will be driftage to present sticking friction phenomenon, cause damping random variation constantly, cause the power of yaw motor to continue random fluctuation, as shown in Figure 2 power features curve map corresponding to the overproof driftage noise causing of brake disc surfaceness, the third operating mode, drive disk assembly inefficacy when wind-powered electricity generation unit yaw system, while being the tooth surface wear out failure of yawing gear ring or pinion wheel, can cause in driftage process and occur shock load, cause the power of yaw motor to change in the short time at the utmost point, and magnitude of power is Changing Pattern rapidly, power features curve map corresponding to driftage noise that yaw system drive disk assembly lost efficacy and causes as shown in Figure 3.
The driftage noise that wind-powered electricity generation set yaw noise detecting method of the present invention produces based on above-mentioned different operating modes carries out corresponding to the principle of different yaw motor power swing curves.
Wind-powered electricity generation set yaw noise detection apparatus of the present invention is by gathering electric current and the voltage data of yaw motor, pass through again data processing, obtain yaw motor power swing curve, numerical fluctuations situation according to power swing curve, analyze the generation position and generation reason of yaw system noise, for solving driftage noise problem, provide reliable basis.
Shown in accompanying drawing 4, as the present invention's one specific embodiment: wind-powered electricity generation set yaw noise detection apparatus 10 of the present invention comprises isolating switch 4, current transformer 5, current transducer 6, voltage transformer (VT) 7, voltage transmitter 8 and PLC controller 9.The input end of isolating switch 4 is connected with the splicing ear of the corresponding contactor 2 of yaw motor 3 in wind-powered electricity generation unit master control cabinet 1, the output terminal of isolating switch 4 is connected with the input end of voltage transformer (VT) 7 with current transformer 5 respectively, the output terminal of current transformer 5 is connected with the input end of current transducer 6, the output terminal of voltage transformer (VT) 7 is connected with the input end of voltage transmitter 8, and the output terminal of current transducer 6 and voltage transmitter 8 is all connected with PLC controller 9.
When contactor 2 and isolating switch 4 equal closure, first 7 summation current transformers 5 of the voltage transformer (VT) in pick-up unit 10 obtain respectively the voltage and current value of yaw motor 3, and current transformer 5 is tentatively adjusted to 0-5A by the current value of yaw motor 3, then the current value of voltage transformer (VT) 7 summation current transformers 5 by magnitude of voltage and after adjusting exported to respectively voltage transmitter 8 and current transducer 6, voltage transmitter 8 and current transducer 6 are transferred to PLC controller 9 after the magnitude of voltage of acquisition and current value are transformed into the detectable data of PLC controller 9 afterwards, PLC controller 9 is concentrated arrangement by the voltage and current data that acquire by data processing and analysis software again, draw out the power swing curve of yaw motor 3.Power features curve map corresponding to driftage noise causing according to different reasons, analyzes the reason that driftage noise produces.
Wind-powered electricity generation set yaw noise detection apparatus of the present invention can be installed in the remote monitoring chamber away from wind-powered electricity generation unit, can complete safely, easily the detection of driftage noise reason.
The present invention is observing under the condition of wind energy turbine set safety regulations, overcome the deficiency of existing detection method, more convenient definite reason that causes driftage noise reliably, realized the effective solution to wind-powered electricity generation set yaw walkaway problem, guarantee that wind-powered electricity generation unit reaches design working life, promote again the running quality of wind-powered electricity generation unit, more embodied the environmentally friendly feature of wind-powered electricity generation unit.
The above; it is only preferred embodiment of the present invention; not the present invention is done to any pro forma restriction, those skilled in the art utilize the technology contents of above-mentioned announcement to make a little simple modification, equivalent variations or modification, all drop in protection scope of the present invention.
Claims (6)
1. a wind-powered electricity generation set yaw noise detecting method, is characterized 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 the power swing curve of yaw motor;
(2) according to the power swing tracing analysis of yaw motor, cause the reason of driftage noise.
2. wind-powered electricity generation set yaw noise detecting method according to claim 1, it is characterized in that, there is the fluctuation that the magnitude of power that continues for some time declines in the power swing curve of described yaw motor, and magnitude of power is slow Changing Pattern during fluctuation, cause the former of driftage noise because the brake disc of wind turbine group yaw system is polluted by hydraulic oil material.
3. wind-powered electricity generation set yaw noise detecting method according to claim 1, it is characterized in that, the power swing curve of described yaw motor occurs continuing random fluctuation, causes the former of driftage noise because the brake disc surfaceness of wind turbine group yaw system is overproof.
4. wind-powered electricity generation set yaw noise detecting method according to claim 1, it is characterized in that, there is fluctuation in the utmost point short time in the power swing curve of described yaw motor, and magnitude of power is Changing Pattern rapidly during fluctuation, cause the former of driftage noise because the drive disk assembly of wind turbine group yaw system lost efficacy.
5. a pick-up unit of realizing the wind-powered electricity generation set yaw noise detecting method described in claim 1 to 4 any one, is characterized in that, comprises isolating switch, current transformer, current transducer, voltage transformer (VT), voltage transmitter and PLC controller; The input end of described isolating switch is connected with yaw motor in wind-powered electricity generation unit master control cabinet, the output terminal of described isolating switch is connected with the input end of current transformer and voltage transformer (VT) respectively, the output terminal of described current transformer is connected with the input end of current transducer, the output terminal of described voltage transformer (VT) is connected with the input end of voltage transmitter, and the output terminal of described current transducer and voltage transmitter is all connected with described PLC controller.
6. pick-up unit according to claim 5, is characterized in that, the contactor splicing ear that the input end of described isolating switch is corresponding with yaw motor in wind-powered electricity generation unit master control cabinet is connected.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108075689A (en) * | 2018-01-09 | 2018-05-25 | 福建船政交通职业学院 | The noise measuring braking system and its application method of a kind of direct current generator |
| 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 |
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| 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 |
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2014
- 2014-08-26 CN CN201410424793.XA patent/CN104165689B/en active Active
Patent Citations (4)
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| 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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108075689A (en) * | 2018-01-09 | 2018-05-25 | 福建船政交通职业学院 | The noise measuring braking system and its application method of a kind of direct current generator |
| 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 |
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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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