CN113623146A - Wind generating set gear box fatigue state on-line monitoring method - Google Patents
Wind generating set gear box fatigue state on-line monitoring method Download PDFInfo
- Publication number
- CN113623146A CN113623146A CN202111080734.1A CN202111080734A CN113623146A CN 113623146 A CN113623146 A CN 113623146A CN 202111080734 A CN202111080734 A CN 202111080734A CN 113623146 A CN113623146 A CN 113623146A
- Authority
- CN
- China
- Prior art keywords
- gearbox
- torque
- generator
- generating set
- wind generating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
-
- 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
- F03D15/00—Transmission of mechanical power
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
Abstract
The invention discloses an online monitoring method for fatigue state of a gearbox of a wind generating set, which comprises the following steps: firstly, determining a design fatigue curve of a gear box of the wind generating set according to the operating environment parameters of the wind generating set; then monitoring the output electric power, the torque of the generator and the rotating speed of the generator of the wind generating set; then, calculating the torque and the rotating speed of the input end of the gearbox by outputting electric power, the torque of the generator and the rotating speed of the generator and combining the speed ratio of the gearbox and mechanical and electrical loss parameters; then based on the torque and the rotating speed of the input end of the gearbox, calculating by adopting an LDD fatigue calculation method to obtain the equivalent fatigue load of the gearbox; and finally, comparing the calculated equivalent fatigue load with a designed fatigue curve to determine the fatigue state of the gearbox of the wind generating set, wherein if the gearbox is in the fatigue state, the wind generating set can adopt a preset reduction or rotation speed scheme to form closed-loop monitoring of gearbox fatigue monitoring and control intervention.
Description
Technical Field
The invention relates to the technical field of monitoring or controlling of wind driven generators, in particular to an online monitoring method for a fatigue state of a gearbox of a wind driven generator set.
Background
The wind generating set is a system which obtains wind energy from wind through blades and converts the wind energy into mechanical energy, and the mechanical energy is converted into electric energy by a generator through transmission of a gear box. The blades, the gear box and the generator are three major components of the wind turbine generator set, and the design states of the three major components determine the overall performance of the wind turbine generator set. The unit power generation depends on the gearbox, so that the design research of the gearbox is very important.
At present, certain achievements are obtained for monitoring the gearbox at home and abroad, for example, a Marlin state monitoring system developed in Sweden and Puruff in Germany can better realize the functions of monitoring and analyzing the fault of the gearbox. Various domestic windmills have already carried out some experimental work, for example, dasp (data Acquisition and Signal processing) vibration systems developed by beijing oriental companies can better realize fault analysis and monitoring of gear boxes. However, at present, no technology for monitoring the fatigue state of the gearbox when the wind generating set operates exists.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides an online monitoring method for the fatigue state of a gearbox of a wind generating set, which can monitor the fatigue state of the gearbox when the wind generating set operates.
In a first aspect, a wind generating set gearbox equivalent fatigue load monitoring method is provided, and comprises the following steps:
monitoring the output electric power, the torque of the generator and the rotating speed of the generator of the wind generating set;
calculating the torque and the rotating speed of the input end of the gearbox by outputting electric power, the torque of the generator and the rotating speed of the generator and combining the speed ratio of the gearbox and mechanical and electrical loss parameters;
and calculating the equivalent fatigue load of the gearbox by adopting an LDD fatigue calculation method based on the torque and the rotating speed of the input end of the gearbox.
With reference to the first aspect, in a first implementable manner of the first aspect, calculating the torque at the gearbox input comprises:
calculating the electrical loss and the mechanical loss of the wind generating set according to the output electric power, the generator torque and the mechanical electrical loss parameters;
and calculating the torque of the input end of the gearbox through the torque of the generator, the speed ratio of the gearbox, the electrical loss and the mechanical loss.
With reference to the first implementable manner of the first aspect, in a second implementable manner of the first aspect, the electrical loss and the mechanical loss are calculated by using a linear interpolation method according to the output electric power, the generator torque and the mechanical electrical loss parameter.
With reference to the first aspect, the first or second implementable manner of the first aspect, in a third implementable manner of the first aspect, the rotational speed of the input of the gearbox is calculated from the generator rotational speed and the gearbox speed ratio.
In a second aspect, a method for online monitoring of fatigue state of a gearbox of a wind generating set is provided, which comprises the following steps:
determining a design fatigue curve of a gear box of the wind generating set according to the operating environment parameters of the wind generating set;
monitoring the output electric power, the torque of the generator and the rotating speed of the generator of the wind generating set;
calculating the torque and the rotating speed of the input end of the gearbox by outputting electric power, the torque of the generator and the rotating speed of the generator and combining the speed ratio of the gearbox and mechanical and electrical loss parameters;
calculating to obtain the equivalent fatigue load of the gearbox by adopting an LDD fatigue calculation method based on the torque and the rotating speed of the input end of the gearbox;
and comparing the calculated equivalent fatigue load with a design fatigue curve to determine the fatigue state of the gearbox of the wind generating set.
With reference to the second aspect, in a first implementation manner of the second aspect, the design fatigue curve is determined by using a simulation method according to an operating environment parameter of the wind turbine generator system.
With reference to the second aspect, in a second implementable manner of the second aspect, calculating the torque at the gearbox input comprises:
calculating the electrical loss and the mechanical loss of the wind generating set according to the output electric power, the generator torque and the mechanical electrical loss parameters;
and calculating the torque of the input end of the gearbox through the torque of the generator, the speed ratio of the gearbox, the electrical loss and the mechanical loss.
With reference to the second aspect, in a third implementable manner of the second aspect, the electrical loss and the mechanical loss are calculated by using a linear interpolation method according to the output electric power, the generator torque and the mechanical electrical loss parameters.
With reference to the second aspect, in a fourth implementable manner of the second aspect, the rotational speed of the gearbox input is calculated from the generator rotational speed and a gearbox speed ratio.
In a third aspect, a wind turbine generator system control method is provided, including:
determining a design fatigue curve of a gear box of the wind generating set according to the operating environment parameters of the wind generating set;
monitoring the output electric power, the torque of the generator and the rotating speed of the generator of the wind generating set;
calculating the torque and the rotating speed of the input end of the gearbox by outputting electric power, the torque of the generator and the rotating speed of the generator and combining the speed ratio of the gearbox and mechanical and electrical loss parameters;
calculating to obtain the equivalent fatigue load of the gearbox by adopting an LDD fatigue calculation method based on the torque and the rotating speed of the input end of the gearbox;
comparing the calculated equivalent fatigue load with a design fatigue curve to determine the fatigue state of the gearbox of the wind generating set;
and controlling the wind generating set by adopting a corresponding control strategy according to the fatigue state of the gear box of the wind generating set.
With reference to the third aspect, in a first implementable manner of the third aspect, the design fatigue curve is determined by using a simulation method according to an operating environment parameter of the wind turbine generator system.
With reference to the first implementable manner of the third aspect, in a second implementable manner of the third aspect, calculating the torque at the gearbox input comprises:
calculating the electrical loss and the mechanical loss of the wind generating set according to the output electric power, the generator torque and the mechanical electrical loss parameters;
and calculating the torque of the input end of the gearbox through the torque of the generator, the speed ratio of the gearbox, the electrical loss and the mechanical loss.
With reference to the third aspect, in a third implementable manner of the third aspect, the electrical loss and the mechanical loss are calculated by using a linear interpolation method according to the output electric power, the generator torque and the mechanical electrical loss parameter.
With reference to the third aspect and any one of the first to third implementable manners of the third aspect, in four implementable manners of the third aspect, the rotation speed of the input end of the gearbox is calculated according to the generator rotation speed and the gearbox speed ratio.
Has the advantages that: according to the method for monitoring the fatigue state of the gearbox of the wind generating set on line, monitoring data of torque and rotating speed of a high-speed shaft of the set are utilized, the speed ratio of the gearbox and mechanical and electrical losses are combined, the data are converted into the torque and the rotating speed of the input end of the gearbox, then the equivalent fatigue load of the gearbox is equivalent by adopting an LDD (light detection diode) calculation method, the fatigue state of the gearbox is monitored on line, and therefore when the fatigue of the running gearbox exceeds the design condition, control strategy intervention is started, and closed-loop monitoring of the fatigue monitoring and control intervention of the gearbox is formed.
Drawings
In order to more clearly illustrate the embodiments of the present invention, the drawings, which are required to be used in the embodiments, will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to actual scale.
FIG. 1 is a flowchart of a method for monitoring an equivalent fatigue load of a gearbox of a wind turbine generator system according to an embodiment of the present invention;
FIG. 2 is a flowchart of a method for online monitoring a fatigue state of a gearbox of a wind turbine generator system according to an embodiment of the present invention;
fig. 3 is a flowchart of a control method for a wind turbine generator system according to an embodiment of the present invention;
FIG. 4 is a diagram comparing the calculated torque at the input end of the gearbox with the simulation result, wherein Stationary Mx is the simulation result and Gear input torque is the calculated torque;
FIG. 5 is a comparison graph of the calculated result and the simulation result of the rotation speed at the input end of the gearbox, wherein Rotor speed is the simulation result, and Gear input torque is the calculated result.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
In a first embodiment, a flow chart of a wind turbine generator system gearbox equivalent fatigue load monitoring method shown in fig. 1 is provided, and the monitoring method includes:
step 1-1, monitoring output electric power, generator torque and generator rotating speed of a wind generating set;
step 1-2, calculating the torque and the rotating speed of the input end of the gearbox by outputting electric power, the torque of the generator and the rotating speed of the generator and combining the speed ratio of the gearbox and mechanical and electrical loss parameters;
and 1-3, calculating the equivalent fatigue load of the gearbox by adopting an LDD fatigue calculation method based on the torque and the rotating speed of the input end of the gearbox. Specifically, the method comprises the following steps:
firstly, the output electric power, the torque and the rotating speed of a generator in the wind generating set can be monitored through a monitoring system of the wind generating set; the torque and speed at the input of the gearbox can then be calculated by outputting electrical power, generator torque and generator speed, in combination with gearbox speed ratio and mechanical electrical loss parameters. The mechanical electrical loss parameters include a gearbox loss list and a generator loss list, both of which are directly available from the manufacturer.
The electric loss of the wind generating set under the output electric power can be determined by utilizing the generator loss list, the mechanical loss of the wind generating set under the generator torque can be determined by utilizing the mechanical loss list, the torque at the input end of the gear box can be reversely deduced by combining the speed ratio of the gear box, the electric loss, the mechanical loss and the generator torque, and the rotating speed at the input end of the gear box can be reversely deduced by the rotating speed of the generator and the speed ratio of the gear box.
The torque at the input of the gearbox can be calculated using the following calculation:
wherein the content of the first and second substances,
is the ith data point for the generator torque,
is the ith data point of the electrical loss,
is the ith data point for mechanical wear.
The results obtained by the experimental simulation are shown in fig. 4, and it can be seen from fig. 4 that the torque at the input end of the gearbox calculated by the method substantially conforms to the actual conditions.
Finally, according to the rotating speed and the torque of the input end of the gearbox, the equivalent fatigue load of the gearbox can be calculated by an LDD fatigue calculation method, and the calculation formula is as follows:
wherein the content of the first and second substances,
is the ith data point for the torque at the input to the gearbox,
is the ith data point of the rotational speed at the input of the gearbox, dt is the time interval for data acquisition, and m is the test index for different positions of the gearbox, typically 10/3.
The calculated equivalent fatigue load can be used for evaluating the fatigue state of the gearbox, and a foundation is provided for realizing online monitoring of the fatigue state of the gearbox.
In this embodiment, it is preferable to calculate the electrical loss and the mechanical loss by using a linear interpolation method according to the output electric power, the generator torque, and the mechanical electrical loss parameter. The linear interpolation method is adopted for calculation, so that the electrical loss and the mechanical loss can be more accurately calculated, and the error of equivalent fatigue load calculation is reduced.
In this embodiment, it is preferable to calculate the rotational speed of the input of the gearbox based on the generator rotational speed and the gearbox speed ratio.
The rotational speed at the input of the gearbox can be calculated using the following calculation:
wherein the content of the first and second substances,
is the ith data point for the generator speed, and n is the gearbox ratio.
The result obtained by the experimental simulation is shown in fig. 5, and it can be seen from fig. 5 that the rotating speed of the input end of the gearbox calculated by the method basically accords with the actual condition.
In a second embodiment, as shown in fig. 2, a flow chart of a method for online monitoring of fatigue state of a gearbox of a wind turbine generator system includes:
2-1, determining a design fatigue curve of a gear box of the wind generating set according to the operating environment parameters of the wind generating set;
step 2-2, monitoring the output electric power, the generator torque and the generator rotating speed of the wind generating set;
step 2-3, calculating the torque and the rotating speed of the input end of the gearbox by outputting electric power, the torque of the generator and the rotating speed of the generator and combining the speed ratio of the gearbox and mechanical and electrical loss parameters;
2-4, calculating to obtain the equivalent fatigue load of the gearbox by adopting an LDD fatigue calculation method based on the torque and the rotating speed of the input end of the gearbox;
and 2-5, comparing the calculated equivalent fatigue load with a designed fatigue curve, and determining the fatigue state of the gearbox of the wind generating set. Specifically, the method comprises the following steps:
firstly, the operating environment parameters of the environment where the wind generating set is located can be collected through an environment monitoring system according to the installation place of the wind generating set, and the design fatigue curve of the gear box of the wind generating set can be determined through the operating environment parameters.
Then, the equivalent fatigue load of the gearbox of the wind generating set is monitored. In this embodiment, the method for monitoring the equivalent fatigue load is the same as the method for monitoring the equivalent fatigue load of the gearbox of the wind turbine generator system, and specific technical principles and steps are not described herein again.
And finally, comparing the calculated equivalent fatigue load with the design fatigue curve, and if the equivalent fatigue load exceeds the design fatigue curve, the gearbox is in a fatigue state. Therefore, the fatigue state of the gearbox is monitored on line, and a foundation is provided for the fatigue control intervention of the gearbox.
In this embodiment, preferably, the design fatigue curve is determined by using a simulation method according to the operating environment parameters of the wind turbine generator system. Specifically, the existing simulation software can be used for simulation, for example, the bladed software is used for inputting the operating environment parameters of the installation place of the wind generating set, such as site wind speed, turbulence, air density and other data, into the simulation software for simulation calculation, so as to obtain the design fatigue curve of the wind generating set.
In this embodiment, preferably, calculating the torque at the input end of the gearbox comprises:
calculating the electrical loss and the mechanical loss of the wind generating set according to the output electric power, the generator torque and the mechanical electrical loss parameters;
and calculating the torque of the input end of the gearbox through the torque of the generator, the speed ratio of the gearbox, the electrical loss and the mechanical loss.
The mechanical electrical loss parameters include a gearbox loss list and a generator loss list, both of which are directly available from the manufacturer. The electric loss of the wind generating set under the output electric power can be determined by utilizing the generator loss list, the mechanical loss of the wind generating set under the generator torque can be determined by utilizing the mechanical loss list, the torque at the input end of the gear box can be reversely deduced by combining the speed ratio of the gear box, the electric loss, the mechanical loss and the generator torque, and the rotating speed at the input end of the gear box can be reversely deduced by the rotating speed of the generator and the speed ratio of the gear box.
In this embodiment, it is preferable that the electrical loss and the mechanical loss are calculated by a linear interpolation method according to the output electric power, the generator torque, and the mechanical electrical loss parameter.
In a third embodiment, as shown in fig. 3, a flow chart of a control method of a wind turbine generator system includes:
step 3-1, determining a design fatigue curve of a gear box of the wind generating set according to the operating environment parameters of the wind generating set;
step 3-2, monitoring the output electric power, the generator torque and the generator rotating speed of the wind generating set;
3-3, calculating the torque and the rotating speed of the input end of the gearbox by outputting electric power, the torque of the generator and the rotating speed of the generator and combining the speed ratio of the gearbox and mechanical and electrical loss parameters;
3-4, calculating to obtain the equivalent fatigue load of the gearbox by adopting an LDD fatigue calculation method based on the torque and the rotating speed of the input end of the gearbox;
step 3-5, comparing the calculated equivalent fatigue load with a designed fatigue curve, and determining the fatigue state of the gearbox of the wind generating set;
and 3-6, controlling the wind generating set by adopting a corresponding control strategy according to the fatigue state of the gear box of the wind generating set. Specifically, the method comprises the following steps:
firstly, a design fatigue curve of the wind generating set gear box can be determined according to the operating environment parameters of the wind generating set, in this embodiment, the determination method of the design fatigue curve is the same as the determination method of the design fatigue curve in the wind generating set gear box fatigue state online monitoring method, and the specific technical principle is not repeated here.
Then, the equivalent fatigue load of the gearbox of the wind generating set is monitored. In this embodiment, the method for monitoring the equivalent fatigue load is the same as the method for monitoring the equivalent fatigue load of the gearbox of the wind turbine generator system, and specific technical principles and steps are not described herein again.
And then, comparing the equivalent fatigue load with a design fatigue curve, and determining the fatigue state of the gearbox of the wind generating set.
And finally, controlling the wind generating set by adopting a corresponding control strategy according to the fatigue state of the gear box of the wind generating set.
If the gearbox is not in a fatigue state, the wind generating set can keep a normal operation state;
if the gearbox is in a fatigue state, the wind generating set can adopt a preset reduction or rotation speed reduction scheme, so that the fatigue of the gearbox is reduced. And when the fatigue of the gearbox operation exceeds the design condition, the control strategy intervention is started to form closed-loop monitoring of the gearbox fatigue monitoring and the control intervention.
In this embodiment, preferably, the design fatigue curve is determined by using a simulation method according to the operating environment parameters of the wind turbine generator system. The existing simulation software can be adopted for simulation, for example, the bladed software is adopted, and the data of the operating environment parameters of the installation place of the wind generating set, such as site wind speed, turbulence, air density and the like, are input into the simulation software for simulation calculation, so that the design fatigue curve of the wind generating set is obtained.
In this embodiment, preferably, calculating the torque at the input end of the gearbox comprises:
calculating the electrical loss and the mechanical loss of the wind generating set according to the output electric power, the generator torque and the mechanical electrical loss parameters;
and calculating the torque of the input end of the gearbox through the torque of the generator, the speed ratio of the gearbox, the electrical loss and the mechanical loss.
The mechanical electrical loss parameters include a gearbox loss list and a generator loss list, both of which are directly available from the manufacturer. The electric loss of the wind generating set under the output electric power can be determined by utilizing the generator loss list, the mechanical loss of the wind generating set under the generator torque can be determined by utilizing the mechanical loss list, the torque at the input end of the gear box can be reversely deduced by combining the speed ratio of the gear box, the electric loss, the mechanical loss and the generator torque, and the rotating speed at the input end of the gear box can be reversely deduced by the rotating speed of the generator and the speed ratio of the gear box.
In this embodiment, it is preferable that the electrical loss and the mechanical loss are calculated by a linear interpolation method according to the output electric power, the generator torque, and the mechanical electrical loss parameter.
In this embodiment, it is preferable to calculate the rotational speed of the input of the gearbox based on the generator rotational speed and the gearbox speed ratio. In this embodiment, the same calculation method as described above may be used to calculate the rotational speed at the input of the gearbox.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.
Claims (14)
1. A wind generating set gear box equivalent fatigue load monitoring method is characterized by comprising the following steps:
monitoring the output electric power, the torque of the generator and the rotating speed of the generator of the wind generating set;
calculating the torque and the rotating speed of the input end of the gearbox by outputting electric power, the torque of the generator and the rotating speed of the generator and combining the speed ratio of the gearbox and mechanical and electrical loss parameters;
and calculating the equivalent fatigue load of the gearbox by adopting an LDD fatigue calculation method based on the torque and the rotating speed of the input end of the gearbox.
2. The wind turbine generator system gearbox equivalent fatigue load monitoring method of claim 1, wherein calculating the torque at the gearbox input comprises:
calculating the electrical loss and the mechanical loss of the wind generating set according to the output electric power, the generator torque and the mechanical electrical loss parameters;
and calculating the torque of the input end of the gearbox through the torque of the generator, the speed ratio of the gearbox, the electrical loss and the mechanical loss.
3. The wind turbine generator system gearbox equivalent fatigue load monitoring method of claim 2, wherein the electrical and mechanical losses are calculated using linear interpolation based on the output electrical power, generator torque and mechanical electrical loss parameters.
4. A method for monitoring equivalent fatigue load of a gearbox of a wind turbine generator set according to any of claims 1-3, characterised in that the rotational speed of the input of said gearbox is calculated from said generator rotational speed and gearbox speed ratio.
5. A fatigue state online monitoring method for a gearbox of a wind generating set is characterized by comprising the following steps:
determining a design fatigue curve of a gear box of the wind generating set according to the operating environment parameters of the wind generating set;
monitoring the output electric power, the torque of the generator and the rotating speed of the generator of the wind generating set;
calculating the torque and the rotating speed of the input end of the gearbox by outputting electric power, the torque of the generator and the rotating speed of the generator and combining the speed ratio of the gearbox and mechanical and electrical loss parameters;
calculating to obtain the equivalent fatigue load of the gearbox by adopting an LDD fatigue calculation method based on the torque and the rotating speed of the input end of the gearbox;
and comparing the calculated equivalent fatigue load with a design fatigue curve to determine the fatigue state of the gearbox of the wind generating set.
6. The method for on-line monitoring of the fatigue state of the gearbox of the wind generating set according to claim 5, wherein the design fatigue curve is determined by adopting a simulation method according to the operating environment parameters of the wind generating set.
7. The method of claim 5, wherein calculating the torque at the input of the gearbox comprises:
calculating the electrical loss and the mechanical loss of the wind generating set according to the output electric power, the generator torque and the mechanical electrical loss parameters;
and calculating the torque of the input end of the gearbox through the torque of the generator, the speed ratio of the gearbox, the electrical loss and the mechanical loss.
8. The method for on-line monitoring the fatigue state of the gearbox of the wind generating set according to claim 5, wherein the electrical loss and the mechanical loss are calculated by adopting a linear interpolation method according to the output electric power, the generator torque and the mechanical electrical loss parameters.
9. The method of claim 5, wherein the rotational speed of the input end of the gearbox is calculated based on the generator rotational speed and the gearbox speed ratio.
10. A control method of a wind generating set is characterized by comprising the following steps:
determining a design fatigue curve of a gear box of the wind generating set according to the operating environment parameters of the wind generating set;
monitoring the output electric power, the torque of the generator and the rotating speed of the generator of the wind generating set;
calculating the torque and the rotating speed of the input end of the gearbox by outputting electric power, the torque of the generator and the rotating speed of the generator and combining the speed ratio of the gearbox and mechanical and electrical loss parameters;
calculating to obtain the equivalent fatigue load of the gearbox by adopting an LDD fatigue calculation method based on the torque and the rotating speed of the input end of the gearbox;
comparing the calculated equivalent fatigue load with a design fatigue curve to determine the fatigue state of the gearbox of the wind generating set;
and controlling the wind generating set by adopting a corresponding control strategy according to the fatigue state of the gear box of the wind generating set.
11. The wind turbine generator system control method according to claim 10, wherein the design fatigue curve is determined by simulation according to the operating environment parameters of the wind turbine generator system.
12. The wind park control method according to claim 10, wherein calculating the torque at the gearbox input comprises:
calculating the electrical loss and the mechanical loss of the wind generating set according to the output electric power, the generator torque and the mechanical electrical loss parameters;
and calculating the torque of the input end of the gearbox through the torque of the generator, the speed ratio of the gearbox, the electrical loss and the mechanical loss.
13. The wind park control method according to claim 10, wherein said electrical and mechanical losses are calculated using linear interpolation based on said output electrical power, generator torque and mechanical electrical loss parameters.
14. A method according to any of claims 10-13, characterised by calculating the rotational speed of the gearbox input from the generator rotational speed and gearbox speed ratio.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111080734.1A CN113623146B (en) | 2021-09-15 | 2021-09-15 | On-line monitoring method for fatigue state of gearbox of wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111080734.1A CN113623146B (en) | 2021-09-15 | 2021-09-15 | On-line monitoring method for fatigue state of gearbox of wind generating set |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113623146A true CN113623146A (en) | 2021-11-09 |
| CN113623146B CN113623146B (en) | 2023-06-30 |
Family
ID=78390092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111080734.1A Active CN113623146B (en) | 2021-09-15 | 2021-09-15 | On-line monitoring method for fatigue state of gearbox of wind generating set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113623146B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101835974A (en) * | 2007-10-24 | 2010-09-15 | 埃科泰克尼亚可再生能源有限公司 | Be used for determining the method for fatigue damage of the dynamical system of wind turbine |
| CN106286151A (en) * | 2016-08-26 | 2017-01-04 | 中车株洲电力机车研究所有限公司 | A kind of Wind turbines slow-speed shaft torsional load monitoring method and loading analysis method |
| CN107590311A (en) * | 2017-08-08 | 2018-01-16 | 明阳智慧能源集团股份公司 | A kind of planetary drive gear-box Strength co-mputation integrated system |
| US20180223808A1 (en) * | 2015-06-30 | 2018-08-09 | Vestas Wind Systems A/S | Control method and system for wind turbines |
| CN112219028A (en) * | 2018-05-07 | 2021-01-12 | 维斯塔斯风力系统集团公司 | Wind turbine control method |
-
2021
- 2021-09-15 CN CN202111080734.1A patent/CN113623146B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101835974A (en) * | 2007-10-24 | 2010-09-15 | 埃科泰克尼亚可再生能源有限公司 | Be used for determining the method for fatigue damage of the dynamical system of wind turbine |
| US20180223808A1 (en) * | 2015-06-30 | 2018-08-09 | Vestas Wind Systems A/S | Control method and system for wind turbines |
| CN106286151A (en) * | 2016-08-26 | 2017-01-04 | 中车株洲电力机车研究所有限公司 | A kind of Wind turbines slow-speed shaft torsional load monitoring method and loading analysis method |
| CN107590311A (en) * | 2017-08-08 | 2018-01-16 | 明阳智慧能源集团股份公司 | A kind of planetary drive gear-box Strength co-mputation integrated system |
| CN112219028A (en) * | 2018-05-07 | 2021-01-12 | 维斯塔斯风力系统集团公司 | Wind turbine control method |
Non-Patent Citations (1)
| Title |
|---|
| 胥良: "基于载荷谱的兆瓦级风电齿轮箱动态特性研究", 《硕士学位论文》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113623146B (en) | 2023-06-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Qiao et al. | A survey on wind turbine condition monitoring and fault diagnosis—Part I: Components and subsystems | |
| CN102104256B (en) | For operating the method and system of wind turbine | |
| Lu et al. | A review of recent advances in wind turbine condition monitoring and fault diagnosis | |
| Liu et al. | The structure healthy condition monitoring and fault diagnosis methods in wind turbines: A review | |
| CN1873219B (en) | System and method for operating a wind farm under high wind speed conditions | |
| Amirat et al. | A brief status on condition monitoring and fault diagnosis in wind energy conversion systems | |
| CN106886634B (en) | Fan variable pitch motor model selection parameter obtaining method, system and model selection method | |
| KR20120103966A (en) | Variable speed wind turbine system | |
| Nouira et al. | A contribution to the design and the installation of an universal platform of a wind emulator using a DC motor | |
| Aguglia et al. | Determination of fault operation dynamical constraints for the design of wind turbine DFIG drives | |
| Chong et al. | Wind turbine modelling and simulation using Matlab/SIMULINK | |
| CN102156044B (en) | Model selection method of wind turbine simulator applicable to testing of direct driving type wind generating set | |
| Carrelhas et al. | Control law design for the air-turbine-generator set of a fully submerged 1.5 MW mWave prototype. Part 2: Experimental validation | |
| CN116717434A (en) | Wind power generation system, early warning method of wind turbine generator system and readable storage medium | |
| Merizalde et al. | Diagnosis of wind turbine faults using generator current signature analysis: A review | |
| CN113623146A (en) | Wind generating set gear box fatigue state on-line monitoring method | |
| CN114219299B (en) | Multi-wind-turbine wind turbine transmission efficiency evaluation method considering interval uncertainty | |
| CN115065284A (en) | Method and system for optimizing power loss of double-fed wind generator under dq coordinate system | |
| CN104344956A (en) | Bearing fault simulation method for wind power generation gearbox | |
| Zinger et al. | A simple control scheme for variable speed wind turbines | |
| Emeksiz et al. | Some prognostic and diagnostic methods for determining wind turbine failures-A review | |
| Nienhaus et al. | Statistical and time domain signal analysis of the thermal behaviour of wind turbine drive train components under dynamic operation conditions | |
| Anaya-Lara et al. | Generic network model for wind farm control scheme design and performance assessment | |
| Yonis et al. | Dynamic Analysis of Current Loops Behavior in a Wind Turbine Based Doubly-fed Induction Generator | |
| Carlin et al. | Analytic expressions for maximum turbine average power in a Rayleigh wind regime |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |