CN108869205B - Intelligent control system and method for automatic lubrication of generator bearing of wind turbine generator - Google Patents
Intelligent control system and method for automatic lubrication of generator bearing of wind turbine generator Download PDFInfo
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- CN108869205B CN108869205B CN201810523615.0A CN201810523615A CN108869205B CN 108869205 B CN108869205 B CN 108869205B CN 201810523615 A CN201810523615 A CN 201810523615A CN 108869205 B CN108869205 B CN 108869205B
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- 238000005461 lubrication Methods 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000001050 lubricating effect Effects 0.000 claims abstract description 85
- 238000004891 communication Methods 0.000 claims abstract description 49
- 238000012545 processing Methods 0.000 claims abstract description 31
- 238000007405 data analysis Methods 0.000 claims abstract description 29
- 239000004519 grease Substances 0.000 claims abstract description 29
- 238000002347 injection Methods 0.000 claims abstract description 20
- 239000007924 injection Substances 0.000 claims abstract description 20
- 238000004458 analytical method Methods 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000009194 climbing Effects 0.000 abstract 1
- 230000006872 improvement Effects 0.000 description 5
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000003203 everyday effect Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000002354 daily effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007619 statistical method Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
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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
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/70—Bearing or lubricating arrangements
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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
-
- 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
- F03D7/00—Controlling wind motors
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- 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
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- 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)
- Control Of Eletrric Generators (AREA)
Abstract
The invention discloses an intelligent control system for automatic lubrication of a generator bearing of a wind turbine generator, which comprises a lubrication pump and an intelligent control subsystem, wherein the intelligent control subsystem comprises a communication module, and a data analysis processing module, a control module and a power supply module which are connected with the communication module. Also discloses an intelligent control method for automatic lubrication of the generator bearing of the wind turbine generator. The invention adopts the combination of a mechanical lubricating pump and an intelligent control system, takes the actually measured rotating speed of the generator and a main control instruction as the basis, takes the rotating speed of the generator as the influence factor of the lubricating period and the grease injection amount, and utilizes an intelligent control module to carry out precise variable-period and variable-grease-injection-amount lubrication on the bearing, thereby being beneficial to the bearing to be in the optimal lubricating state; the lubricating parameters can be conveniently and quickly and efficiently remotely modified, maintenance personnel are prevented from entering the cabin to manually modify the lubricating parameters one by one when climbing the tower, the workload is greatly saved, and the maintenance cost is reduced; the original timing and automatic lubricating device is also omitted, the complexity of the system is reduced, and the reliability is improved.
Description
Technical Field
The invention relates to the technical field of automatic bearing lubrication, in particular to an intelligent control system and method for automatic lubrication of a generator bearing of a wind turbine generator.
Background
The existing high-power wind generating set generator bearing lubrication mostly adopts a mode of combining manual lubrication with a fixed-period automatic lubrication device. In daily operation, an automatic lubricating system with a fixed period is adopted; during the regular inspection of half year or one year, the grease retaining amount in the bearing chamber is supplemented and adjusted by a manual lubrication mode, and the manual lubrication mode is only used as a supplementing means when the bearing is adjusted and maintained.
The existing automatic lubrication system is basically a fixed-period lubrication mode, namely before the generator leaves a factory, an automatic lubrication period is manually set in the lubrication system, after a unit is connected to the power grid, a main control program powers on the automatic lubrication system, and the system starts timing; after the timing reaches the preset lubrication period, the automatic lubrication system automatically injects a fixed amount of lubricating grease into the bearing chamber. However, the grease required by the generator shaft to carry the generator has a close relationship with the rotating speed of the generator, so that the required amount of the grease is small when the generator operates at low speed. Therefore, once the unit is connected to the power grid, the automatic lubricating system injects grease into the bearing chamber according to the same interval time and grease injection amount no matter the rotating speed of the generator is high or low. The lubricating strategy adopted by the system is relatively rough, and particularly when the wind turbine generator runs at a low speed for a long time in a grid-connected mode, the bearing is easy to give an alarm due to over-lubrication and high temperature, and redundant lubricating grease is hardened in the bearing chamber and blocks a grease discharging channel due to the long-term situation.
Therefore, the above-mentioned existing automatic lubrication system for the generator bearing of the wind turbine obviously still has the inconvenience and defects, and further improvement is needed. How to create a new intelligent control system and method for automatically lubricating a generator bearing of a wind turbine generator, the system and method can make a lubricating strategy according to the actual rotating speed of a generator, realize more accurate timing and quantitative lubrication, and become the target of great need for improvement in the current industry.
Disclosure of Invention
The invention aims to provide an intelligent control system and method for automatically lubricating a generator bearing of a wind turbine generator, which can make a lubricating strategy according to the actual rotating speed of a generator and realize more accurate timing and quantitative lubrication, thereby overcoming the defects of the traditional automatic lubricating system for the generator bearing of the wind turbine generator.
In order to solve the technical problem, the invention provides an intelligent control system for automatic lubrication of a generator bearing of a wind turbine generator, which comprises a mechanical lubrication pump and an intelligent control subsystem, wherein the intelligent control subsystem comprises a communication module, and a data analysis processing module, a control module and a power supply module which are connected with the communication module;
the communication module is used for being connected with a main control system of the wind turbine generator so as to receive instructions and data information of the main control system of the wind turbine generator and transmit the instructions and the data information to the data analysis processing module; the system is also used for receiving the analysis result data of the data analysis processing module and feeding back the analysis result data to the main control system and the control module of the wind turbine generator;
the data analysis processing module is used for receiving instructions and data information of the wind turbine main control system transmitted by the communication module, wherein the instructions and data information comprise a generator bearing lubrication strategy, unit grid-connected operation time, generator rotating speed statistical data and generator bearing temperature; the data analysis processing module counts the running time of the generator and the counting result of the rotating speed of the generator according to a preset time interval, analyzes the lubricating period of the bearing of the generator and the grease injection amount information of each time according to a set bearing lubricating strategy, and then sends the obtained information to the communication module;
the control module is used for receiving the information of the lubricating period of the bearing of the generator and the grease injection amount of each time, which is obtained by analyzing the data by the data analyzing and processing module, through the communication module, controlling the starting and stopping and the running time of the mechanical lubricating pump according to the obtained information, and feeding back the action of controlling the mechanical lubricating pump to the communication module;
and the power supply module is used for providing required electric energy for the data analysis processing module, the communication module and the control module.
The mechanical lubricating pump is further improved, a fault sensor is arranged in the mechanical lubricating pump, and the fault sensor is used for being connected with a master control system of the wind turbine generator.
In a further refinement, the fault sensor comprises a low fuel level alarm sensor and/or a jam alarm sensor.
The mechanical lubricating pump is characterized in that the mechanical lubricating pump is internally provided with a fault sensor, the fault sensor is further connected with a fault alarm device, the fault alarm device is connected with a main control system of the wind turbine generator through the communication module, then the fault alarm device realizes alarm through receiving fault information collected by the fault sensor, and transmits the collected fault information to the main control system of the wind turbine generator through the communication module.
In a further improvement, the power module is connected with a self-power supply of the wind turbine generator.
The invention also provides an intelligent control method for automatically lubricating the bearing of the generator of the wind turbine generator by applying the intelligent control system for automatically lubricating the bearing of the generator of the wind turbine generator, which comprises the following steps:
(1) the communication module receives instructions and data information provided by a master control system of the wind turbine generator and transmits the received information to the data analysis processing module;
(2) the data analysis processing module receives the instruction and the data information of the wind turbine main control system transmitted by the communication module, analyzes and processes the instruction and the data information to obtain the lubricating period of the bearing of the generator and the grease injection amount information of each time, and then transmits the analysis result information to the communication module;
(3) the communication module sends the received information analyzed by the data analysis processing module to the control module and a wind generating set main control system, and the control module controls the opening and closing and the running time of the mechanical lubricating pump according to the received information.
Further improvement, the instruction and data information provided by the wind turbine generator main control system in the step (1) comprise a generator bearing lubrication strategy, unit grid-connected operation time, generator rotating speed statistical data and generator bearing temperature.
In a further improvement, the generator bearing lubricating strategy sets different lubricating periods and grease injection amounts according to different use environments of the wind turbine generator.
The method is further improved, the method further comprises an automatic alarm function of the mechanical lubricating pump, the mechanical lubricating pump is provided with a fault sensor inside, the fault sensor is further connected with a fault alarm device, the fault alarm device is connected with a main control system of the wind turbine generator through the communication module, the fault alarm device receives fault information collected by the fault sensor to realize alarm, and the fault information collected by the fault alarm device is transmitted to the main control system of the wind turbine generator through the communication module.
After adopting such design, the invention has at least the following advantages:
the invention adopts a simple mechanical lubrication pump without a control system, is combined with an intelligent control system, takes the rotating speed of a generator measured in real time and a main control instruction as the basis, takes the rotating speed of the generator as the influence factor of a lubrication period and a grease injection amount, utilizes an intelligent control module to carry out precise variable-period and variable-grease-injection-amount lubrication on a bearing, changes the existing constant-period and constant-grease-injection-amount lubrication into variable-period and variable-grease-injection-amount lubrication, and is beneficial to the bearing to be always in an optimal lubrication state on the one hand; on the other hand, the lubricating parameters can be conveniently and remotely modified quickly and efficiently, so that the condition that maintenance personnel climb each unit into the engine room one by one to manually modify the parameters of the automatic lubricating pump is avoided, the workload is greatly saved, and the maintenance cost is reduced; the original timing and automatic lubricating device is also omitted, the complexity of the system is greatly reduced, and the reliability is improved.
The mechanical lubricating pump can realize the function of fault alarm of the mechanical lubricating pump by arranging the fault sensor and the fault alarm device connected with the fault sensor in the mechanical lubricating pump.
Drawings
The foregoing is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and the detailed description.
FIG. 1 is a schematic structural diagram of an intelligent control system for automatic lubrication of a generator bearing of a wind turbine generator.
Detailed Description
Referring to the attached drawing 1, the automatic lubrication intelligent control system for the generator bearing of the wind turbine generator comprises a lubrication pump and an intelligent control subsystem.
In this embodiment, the lubrication pump is a mechanical lubrication pump without a control system. The mechanical lubricating pump comprises a grease injection port, a grease injection pipe, a driving motor, a grease storage chamber and a fault sensor. The fault sensor includes a low fuel level alarm sensor and/or a jam alarm sensor. The intelligent control system also comprises a fault alarm device connected with the low oil level alarm sensor and/or the blockage alarm sensor, and the fault alarm device is connected with a communication module in the intelligent control system. The fault alarm device realizes alarm by receiving fault information acquired by the fault sensor and transmits the acquired fault information to the master control system of the wind turbine generator through the communication module.
Furthermore, the mechanical lubricating pump also comprises a power supply interface, and the power supply interface is connected with the mechanical lubricating pump and the fault alarm device to supply power to the mechanical lubricating pump and the fault alarm device. The mechanical lubricating pump obtains power through the power interface, and is powered on to operate, and is powered off to stop operating.
Of course, the fault signal of the mechanical lubricating pump collected by the low oil level alarm sensor and/or the blockage alarm sensor can also be directly fed back to the main control system of the wind turbine generator.
In this embodiment, the intelligent control subsystem includes a communication module, and a data analysis processing module, a control module, and a power module connected to the communication module.
The communication module is used for being connected with a main control system of the wind turbine generator so as to receive instructions and data information of the main control system of the wind turbine generator and transmit the instructions and the data information to the data analysis processing module; and the intelligent control system is also used for receiving the analysis result data of the data analysis processing module and feeding the analysis result data back to the wind turbine main control system and the control module so as to realize the information interaction between the intelligent control system and the wind turbine main control system.
The data analysis processing module is used for receiving instructions and data information of the wind turbine main control system transmitted by the communication module, wherein the instructions and the data information comprise a generator bearing lubrication strategy, unit grid-connected operation time, generator rotating speed statistical data and generator bearing temperature. The data analysis processing module counts the running time of the generator and the counting result of the rotating speed of the generator according to a preset time interval, analyzes the lubricating period of the bearing of the generator and the grease injection amount information of each time according to a set bearing lubricating strategy and then sends the obtained information to the communication module;
the control module is used for receiving the information of the lubricating period and the grease injection amount of the generator bearing, which is obtained by analyzing the data analysis and processing module through the communication module, controlling the opening and closing and the running time of the mechanical lubricating pump according to the obtained information and feeding back the action of controlling the mechanical lubricating pump to the communication module.
The power supply module is connected with a self-power supply of the wind turbine generator set and used for providing required electric energy for the data analysis processing module, the communication module and the control module, and the power supply amount of the power supply module to each module can be provided according to the requirements of each module on power supply type, power supply power, voltage grade and the like.
The invention discloses an intelligent control method for automatically lubricating a bearing of a wind turbine generator of an intelligent control system for automatically lubricating the bearing of the wind turbine generator, which comprises the following steps:
(1) the communication module receives instructions and data information provided by a master control system of the wind turbine generator and transmits the received information to the data analysis processing module;
the instruction and data information provided by the wind turbine main control system comprise a generator bearing lubrication strategy, unit grid-connected operation time, generator rotating speed statistical data and generator bearing temperature.
The generator bearing lubricating strategy can set different lubricating periods and grease injection amounts according to different use environments of the wind turbine generator. If the lubricating action is performed regularly in multiple times every day according to the statistical analysis result aiming at the south or the environment with higher air temperature; aiming at the northern or alpine environment, in order to prevent the insufficient injection amount of the lubricating grease caused by the reduction of the fluidity of the lubricating grease due to low temperature, one lubricating action is executed at the highest temperature every day, such as about 2 pm, and the injection amount of the lubricating grease is the required amount all day.
(2) The data analysis processing module receives the instruction and the data information of the wind turbine main control system transmitted by the communication module, analyzes and processes the instruction and the data information to obtain the lubricating period of the bearing of the generator and the grease injection amount information each time, and then transmits the analysis result information to the communication module.
(3) The communication module sends the received information analyzed by the data analysis processing module to the control module and the wind generating set main control system, and the control module controls the opening and closing and the running time of the mechanical lubricating pump according to the received information.
The intelligent control method also comprises an automatic alarm function of the mechanical lubricating pump. The fault alarm device realizes alarm by receiving fault information acquired by a fault sensor in the mechanical lubricating pump, and transmits the acquired fault information to the master control system of the wind turbine generator through the communication module.
Aiming at the automatic lubricating system of the generator bearing of the wind turbine generator, the invention adopts a simple mechanical lubricating pump without a control system and an intelligent control system combined structure. The method is characterized in that the rotating speed of the generator measured in real time and a main control instruction are taken as the basis, the rotating speed of the generator is taken as the influence factor of the lubricating period and the grease injection amount, and the intelligent control module is utilized to perform accurate variable-period and variable-grease-injection-amount lubrication on the bearing, so that the conventional constant-period and constant-grease-injection-amount lubrication is changed into variable-period and variable-grease-injection-amount lubrication; meanwhile, a lubricating program can be set remotely through the master control system, and remote interaction of data and instructions of the automatic lubricating system and the master control system is achieved. The intelligent control system can be matched with other automatic lubricating pumps for use according to requirements.
The invention ensures that the generator bearing lubrication is more accurate through the unique design, and can set the lubrication parameters in real time and remotely according to the requirements. On one hand, the bearing is beneficial to be in an optimal lubrication state; on the other hand, the lubricating parameters can be conveniently and remotely modified quickly and efficiently, the condition that maintenance personnel climb each unit into the engine room one by one to manually modify the parameters of the automatic lubricating pump is avoided, the workload is greatly saved, and the maintenance cost is reduced.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention in any way, and it will be apparent to those skilled in the art that the above description of the present invention can be applied to various modifications, equivalent variations or modifications without departing from the spirit and scope of the present invention.
Claims (8)
1. An intelligent control system for automatic lubrication of a generator bearing of a wind turbine generator is characterized by comprising a mechanical lubrication pump and an intelligent control subsystem, wherein the intelligent control subsystem comprises a communication module, and a data analysis processing module, a control module and a power supply module which are connected with the communication module;
the communication module is used for being connected with a main control system of the wind turbine generator so as to receive instructions and data information of the main control system of the wind turbine generator and transmit the instructions and the data information to the data analysis processing module; the system is also used for receiving the analysis result data of the data analysis processing module and feeding back the analysis result data to the main control system and the control module of the wind turbine generator;
the data analysis processing module is used for receiving instructions and data information of the wind turbine main control system transmitted by the communication module, wherein the instructions and data information comprise a generator bearing lubrication strategy, unit grid-connected operation time, generator rotating speed statistical data and generator bearing temperature; the data analysis processing module counts the running time of the generator and the counting result of the rotating speed of the generator according to a preset time interval, analyzes the lubricating period of the bearing of the generator and the grease injection amount information of each time according to a set bearing lubricating strategy, and then sends the obtained information to the communication module;
the control module is used for receiving the information of the lubricating period of the bearing of the generator and the grease injection amount of each time, which is obtained by analyzing the data by the data analyzing and processing module, through the communication module, controlling the starting and stopping and the running time of the mechanical lubricating pump according to the obtained information, and feeding back the action of controlling the mechanical lubricating pump to the communication module;
and the power supply module is used for providing required electric energy for the data analysis processing module, the communication module and the control module.
2. The intelligent control system for automatically lubricating the bearing of the generator of the wind turbine generator set according to claim 1, wherein a fault sensor is arranged in the mechanical lubricating pump and used for being connected with a main control system of the wind turbine generator set.
3. The intelligent control system for automatically lubricating a bearing of a generator of a wind turbine generator as set forth in claim 2, wherein the fault sensor comprises a low oil level alarm sensor and/or a jam alarm sensor.
4. The intelligent control system for automatic lubrication of the bearing of the generator of the wind turbine generator according to claim 1, wherein the mechanical lubrication pump is a mechanical lubrication pump with a fault sensor arranged inside, the fault sensor is further connected with a fault alarm device, the fault alarm device is connected with the main control system of the wind turbine generator through the communication module, and the fault alarm device receives fault information collected by the fault sensor to realize alarm and transmits the collected fault information to the main control system of the wind turbine generator through the communication module.
5. The intelligent control system for automatically lubricating a bearing of a generator of a wind turbine generator set according to claim 1, wherein the power module is connected with a self-powered power supply of the wind turbine generator set.
6. An intelligent control method for automatic lubrication of a bearing of a wind turbine generator by using the intelligent control system for automatic lubrication of a bearing of a wind turbine generator according to any one of claims 1 to 5, wherein the method comprises the following steps:
(1) the communication module receives instructions and data information provided by a master control system of the wind turbine generator and transmits the received information to the data analysis processing module; the instruction and data information provided by the wind turbine main control system comprise a generator bearing lubrication strategy, unit grid-connected operation time, generator rotating speed statistical data and generator bearing temperature;
(2) the data analysis processing module receives the instruction and the data information of the wind turbine main control system transmitted by the communication module, analyzes and processes the instruction and the data information to obtain the lubricating period of the bearing of the generator and the grease injection amount information of each time, and then transmits the analysis result information to the communication module;
(3) the communication module sends the received information analyzed by the data analysis processing module to the control module and a wind generating set main control system, and the control module controls the opening and closing and the running time of the mechanical lubricating pump according to the received information.
7. The intelligent control method for automatically lubricating the bearing of the generator of the wind turbine generator as claimed in claim 6, wherein the lubricating strategy of the bearing of the generator is set to different lubricating periods and grease injection amounts according to different use environments of the wind turbine generator.
8. The intelligent control method for automatic lubrication of the bearing of the generator of the wind turbine generator according to claim 6, further comprising an automatic alarm function of a mechanical lubrication pump, wherein the mechanical lubrication pump is a mechanical lubrication pump with a fault sensor arranged inside, the fault sensor is further connected with a fault alarm device, the fault alarm device is connected with a main control system of the wind turbine generator through the communication module, and the fault alarm device receives fault information collected by the fault sensor to realize alarm and transmits the collected fault information to the main control system of the wind turbine generator through the communication module.
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| CN201810523615.0A CN108869205B (en) | 2018-05-28 | 2018-05-28 | Intelligent control system and method for automatic lubrication of generator bearing of wind turbine generator |
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| CN112128063A (en) * | 2020-09-16 | 2020-12-25 | 周德旺 | Lifting offshore wind driven generator |
| CN114000988B (en) * | 2021-11-01 | 2024-06-14 | 西安热工研究院有限公司 | Fatigue life prediction device and method for bearing seat of wind turbine generator |
| CN115164082A (en) * | 2022-06-27 | 2022-10-11 | 国电联合动力技术有限公司 | Automatic lubricating system for generator set bearing |
| CN116838781B (en) * | 2023-08-30 | 2023-11-21 | 南京讯联液压技术股份有限公司 | Lubrication system and method for long-life wind power generation gear box |
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