A smart wind turbine generator set with a liquid cooling system

Abstract

This invention provides an intelligent wind turbine generator set with a liquid cooling system, including a tower, a nacelle mounted on top of the tower, and a generator body and converter housed within the nacelle. It also includes a liquid cooling circulation system and a control unit. The liquid cooling circulation system comprises coolant, a pump station, a radiator, and cooling channels arranged on the surfaces of the generator body and converter. This application effectively reduces hot spot temperatures and improves heat dissipation efficiency by tightly adhering the cooling channels to the generator and converter surfaces, combined with real-time adjustment of the coolant flow rate by the control unit. For example, the cooling channels are made of thermally conductive material and adhered to the stator windings and power modules, ensuring rapid heat conduction. The coordinated operation of the pump station and flow control valve optimizes coolant circulation energy consumption, while the combined design of the radiator and fan enhances heat dissipation. The overall system reduces energy consumption while extending the service life of key components.

Description

Technical Field

[0001] This invention relates to the field of wind power generation technology, and in particular to an intelligent wind turbine generator set with a liquid cooling system, belonging to the field of new energy power generation equipment technology. Background Technology

[0002] During operation, key components of traditional wind turbine generators, such as the generator and converter, often experience reduced efficiency and shortened lifespan due to high-temperature operating environments. Current technologies primarily employ air-cooling systems for heat dissipation, but air cooling suffers from low efficiency and slow response times, making precise temperature control difficult, especially under high-temperature or high-load conditions. Furthermore, the fluctuating internal environment of the nacelle easily leads to condensation, causing equipment corrosion or electrical short circuits, increasing maintenance costs and the risk of failure. Therefore, an intelligent cooling solution is urgently needed to improve the reliability and energy efficiency of wind turbine generators. To address this, a smart wind turbine generator set with a liquid cooling system is proposed. Summary of the Invention

[0003] In view of this, the present invention provides an intelligent wind turbine generator set with a liquid cooling system to solve or alleviate the technical problems existing in the prior art, and at least provides a beneficial alternative.

[0004] The technical solution of the present invention is implemented as follows: an intelligent wind turbine generator set with a liquid cooling system, comprising: a tower, a nacelle disposed on the top of the tower, and a generator body and a converter disposed in the nacelle, and further comprising a liquid cooling circulation system and a control unit. The liquid cooling circulation system includes coolant, a pump station, a radiator, and cooling channels arranged on the surface of the generator body and the converter; the control unit is electrically connected to the pump station and is used to adjust the circulation flow rate of the coolant according to the temperature of the generator body and the converter.

[0005] More preferably, the radiator is disposed in the internal bulkhead of the cabin, and its surface is provided with a fan electrically connected to the control unit.

[0006] More preferably, the cooling channel is made of thermally conductive material and is closely attached to the surface of the generator main stator winding and the converter power module.

[0007] More preferably, the liquid cooling circulation system is further provided with a liquid temperature sensor and a flow regulating valve electrically connected to the control unit.

[0008] Further preferably, the engine compartment is also equipped with a vibration sensor electrically connected to the control unit. The control unit is configured to adjust the workload of the generator body and correspondingly increase the cooling power of the liquid cooling circulation system when abnormal vibration is detected.

[0009] More preferably, an environmental monitoring module is installed inside the cabin. The environmental monitoring module is installed inside the cabin and is used to collect temperature and humidity data in the cabin in real time and send them to the control unit. The control unit is configured to control the operating status of the liquid cooling circulation system based on the temperature and humidity data to prevent condensation inside the cabin.

[0010] The embodiments of the present invention have the following advantages due to the adoption of the above technical solutions: I. This invention effectively reduces hot spot temperatures and improves heat dissipation efficiency by tightly attaching cooling channels to the surfaces of the generator and converter, combined with real-time coolant flow regulation by the control unit. For example, the cooling channels are made of thermally conductive material and attached to the stator windings and power modules, ensuring rapid heat conduction. The coordinated operation of the pump station and flow regulating valve optimizes coolant circulation energy consumption, while the combined design of the radiator and fan enhances heat dissipation. The overall system reduces energy consumption while extending the service life of key components.

[0011] Second, by introducing vibration sensors and an environmental monitoring module, this invention enables the system to detect abnormal vibrations and changes in the cabin environment. The control unit can dynamically adjust the generator load and increase cooling power to prevent equipment overload or condensation, thereby enhancing the system's safety and adaptability.

[0012] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a first perspective view of the present invention; Figure 2 This is a second perspective view of the present invention; Figure 3 This is a three-dimensional structural diagram of the cabin interior of the present invention; Figure 4 This is a three-dimensional structural diagram of the liquid cooling circulation system of the present invention.

[0015] Reference numerals: 1. Tower; 2. Nacelle; 3. Generator body; 4. Converter; 5. Liquid cooling circulation system; 501. Coolant; 502. Pump station; 503. Radiator; 504. Cooling channel; 505. Fan; 506. Liquid temperature sensor; 507. Flow regulating valve; 6. Control unit; 7. Vibration sensor; 8. Environmental monitoring module. Detailed Implementation

[0016] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0017] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0018] like Figures 1-4 As shown, this embodiment of the invention provides an intelligent wind turbine generator set with a liquid cooling system, including: a tower 1, a nacelle 2 disposed on the top of the tower 1, and a generator body 3 and a converter 4 disposed in the nacelle 2. It also includes a liquid cooling circulation system 5 and a control unit 6. The liquid cooling circulation system 5 includes a coolant 501, a pump station 502, a radiator 503, and cooling channels 504 arranged on the surface of the generator body 3 and the converter 4. The control unit 6 is electrically connected to the pump station 502 and is used to adjust the circulation flow rate of the coolant 501 according to the temperature of the generator body 3 and the converter 4. The radiator 503 is disposed in the inner wall of the nacelle 2, and a fan 505 electrically connected to the control unit 6 is disposed on its surface.

[0019] The coolant 501 is driven by the pump station 502 to circulate in a closed pipeline. The coolant 501 first flows through the cooling channel 504, which is closely attached to the surface of the stator winding of the generator body 3 and the power module of the converter 4. The cooling channel 504 is made of a high thermal conductivity material and can quickly absorb the large amount of heat generated by the generator and converter 4 during operation.

[0020] Reference Figures 2-3 The cooling channel 504 is made of thermally conductive material and is closely attached to the surface of the stator winding of the generator body 3 and the power module of the converter 4. The liquid cooling circulation system 5 is also equipped with a liquid temperature sensor 506 and a flow regulating valve 507 that are electrically connected to the control unit 6.

[0021] The high-temperature coolant 501, after absorbing heat, is pumped to the radiator 503 located on the inner wall of the engine compartment 2. The fan 505 on the surface of the radiator 503 forces air into or from the engine compartment 2. The control unit 6 continuously receives real-time data from the liquid temperature sensors 506 built into the generator body 3, the converter 4, and the liquid cooling circulation system 5.

[0022] Reference Figures 2-4 The engine compartment 2 is also equipped with a vibration sensor 7 electrically connected to the control unit 6. The control unit 6 is configured to adjust the workload of the generator body 3 and increase the cooling power of the liquid cooling circulation system 5 accordingly when abnormal vibration is detected. An environmental monitoring module 8 is installed inside the engine compartment 2. The environmental monitoring module 8 is installed inside the engine compartment 2 and is used to collect temperature and humidity data in the engine compartment 2 in real time and send it to the control unit 6. The control unit 6 is configured to control the operating status of the liquid cooling circulation system 5 based on the temperature and humidity data to prevent condensation inside the engine compartment 2.

[0023] The control unit 6 continuously receives real-time data from the liquid temperature sensors 506 located in the generator body 3, converter 4, and liquid cooling circulation system 5. The control unit 6 dynamically adjusts the speed of the pump station 502 and the opening of the flow regulating valve 507 to precisely control the circulation flow rate of the coolant 501. When the equipment temperature rises, the system increases the flow rate to enhance cooling.

[0024] In operation, the present invention works as follows: After system startup, pump station 502 drives coolant 501 to circulate in a closed pipeline. Coolant 501 first flows through cooling channels 504 tightly attached to the stator windings of generator body 3 and the power module surface of converter 4. Cooling channels 504 are made of highly thermally conductive material, which can quickly absorb the large amount of heat generated by the generator and converter 4 during operation, raising the temperature of coolant 501. The high-temperature coolant 501 after absorbing heat is pumped to radiators 503 located on the inner wall of the engine compartment 2. Fans 505 on the surface of radiators 503 force air into the engine compartment 2 or from the outside. Control unit 6 continuously receives real-time data from liquid temperature sensors 506 built into generator body 3, converter 4, and liquid cooling circulation system 5. Control unit 6 dynamically adjusts the speed of pump station 502 and the opening of flow regulating valve 507 to precisely control the circulation flow rate of coolant 501. When the equipment temperature rises, the system increases the flow rate to enhance cooling.

[0025] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in the present invention, and these should all be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A smart wind turbine generator set with a liquid cooling system, characterized in that: The device includes a tower (1), a nacelle (2) located on top of the tower (1), and a generator body (3) and a converter (4) located in the nacelle (2). It is characterized by further including a liquid cooling circulation system (5) and a control unit (6). The liquid cooling circulation system (5) includes a coolant (501), a pump station (502), a radiator (503), and cooling channels (504) arranged on the surface of the generator body (3) and the converter (4). The control unit (6) is electrically connected to the pump station (502) and is used to adjust the circulation flow rate of the coolant (501) according to the temperature of the generator body (3) and the converter (4).

2. The intelligent wind turbine generator set with a liquid cooling system according to claim 1, characterized in that: The radiator (503) is installed in the inner wall of the cabin (2), and a fan (505) electrically connected to the control unit (6) is provided on its surface.

3. The intelligent wind turbine generator set with a liquid cooling system according to claim 1, characterized in that: The cooling channel (504) is made of thermally conductive material and is closely attached to the surface of the stator winding of the generator body (3) and the power module of the converter (4).

4. The intelligent wind turbine generator set with a liquid cooling system according to claim 1, characterized in that: The liquid cooling circulation system (5) is also provided with a liquid temperature sensor (506) and a flow regulating valve (507) that are electrically connected to the control unit (6).

5. A smart wind turbine generator set with a liquid cooling system according to claim 1, characterized in that: The engine compartment (2) is also equipped with a vibration sensor (7) electrically connected to the control unit (6). The control unit (6) is configured to adjust the workload of the generator body (3) and increase the cooling power of the liquid cooling circulation system (5) accordingly when abnormal vibration is detected.

6. The intelligent wind turbine generator set with a liquid cooling system according to claim 1, characterized in that: An environmental monitoring module (8) is installed inside the cabin (2). The environmental monitoring module (8) is installed inside the cabin (2) and is used to collect temperature and humidity data inside the cabin (2) in real time and send it to the control unit (6). The control unit (6) is configured to control the operation status of the liquid cooling circulation system (5) based on the temperature and humidity data to prevent condensation inside the cabin (2).

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