CN114753977A - Automatic control early warning system for air-to-air cooling of wind driven generator and control method thereof - Google Patents

Automatic control early warning system for air-to-air cooling of wind driven generator and control method thereof Download PDF

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Publication number
CN114753977A
CN114753977A CN202210552157.XA CN202210552157A CN114753977A CN 114753977 A CN114753977 A CN 114753977A CN 202210552157 A CN202210552157 A CN 202210552157A CN 114753977 A CN114753977 A CN 114753977A
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China
Prior art keywords
early warning
control
air inlet
air
fan
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Withdrawn
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CN202210552157.XA
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Chinese (zh)
Inventor
沙德生
王玉玉
张庆
李芊
邹歆
梁晏萱
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Huaneng Clean Energy Research Institute
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Huaneng Clean Energy Research Institute
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Priority to CN202210552157.XA priority Critical patent/CN114753977A/en
Publication of CN114753977A publication Critical patent/CN114753977A/en
Withdrawn legal-status Critical Current

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/42—Auxiliary equipment or operation thereof
    • B01D46/44—Auxiliary equipment or operation thereof controlling filtration
    • B01D46/442—Auxiliary equipment or operation thereof controlling filtration by measuring the concentration of particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/42—Auxiliary equipment or operation thereof
    • B01D46/44—Auxiliary equipment or operation thereof controlling filtration
    • B01D46/46—Auxiliary equipment or operation thereof controlling filtration automatic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/42—Auxiliary equipment or operation thereof
    • B01D46/48—Removing dust other than cleaning filters, e.g. by using collecting trays
    • 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 
    • 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
    • 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
    • F03D80/60—Cooling or heating of wind motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2270/00—Control
    • F05B2270/10—Purpose of the control system
    • F05B2270/107—Purpose of the control system to cope with emergencies

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

The invention belongs to the technical field of wind power generation equipment, and particularly discloses an air-to-air cooling automatic control early warning system of a wind driven generator and a control method thereof, wherein the control method comprises the following steps: the control early warning system, the air inlet and outlet control system and the air inlet filtering system are arranged; the air inlet and outlet control system and the air inlet filtering system are respectively connected with the control early warning system; also included is a SCADA system. According to the invention, early warning information of sand weather is obtained through the SCADA system and is transmitted to the control early warning system, and the control early warning system makes a control strategy of the fan according to different early warning information of sand weather; and making a control scheme according to a control strategy sent by the control early warning system. The air inlet and outlet baffle plates of the fan are automatically closed or the air inlet filtering system is opened according to weather conditions, so that electric elements inside the engine room and the internal environment of the engine room are protected, and the service life and the reliability of equipment in the engine room are prolonged.

Description

Automatic control early warning system for air-to-air cooling of wind driven generator and control method thereof
Technical Field
The invention belongs to the technical field of wind power generation equipment, and particularly relates to an air-to-air cooling automatic control early warning system of a wind driven generator and a control method thereof.
Background
The wind driven generator has complex and various installation environments including plain, plateau and sea, and gradually develops to a high-temperature desert area, and a fan inevitably faces severe natural environments, raises dust and floaters in different seasons, and even the desert edge area can be attacked by a sand storm. A large number of electric elements in the engine room have high requirements on environmental cleanliness, so that a good working environment is provided for the electric elements in the engine room, and the influence of the external environment on the electric elements is reduced as much as possible.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide an air-to-air cooling automatic control early warning system of a wind driven generator and a control method thereof, so as to solve the problems that electrical components in a cabin are damaged and the service life of equipment is shortened due to the fact that a fan is opened in a dust weather.
In order to achieve the purpose, the invention adopts the following technical scheme:
in one aspect, the invention provides an air-to-air cooling automatic control early warning system for a wind driven generator, which comprises:
the control early warning system, the air inlet and outlet control system and the air inlet filtering system are arranged; the air inlet and outlet control system and the air inlet filtering system are respectively connected with the control early warning system;
the system also comprises an SCADA system, wherein the SCADA system is connected with the fan and is used for acquiring sand weather early warning information and transmitting the sand weather early warning information to the control early warning system;
the control early warning system is arranged in the fan and used for acquiring early warning information of sand weather transmitted by the SCADA system, acquiring the predicted sand weather occurrence time, making a control strategy of the fan according to different early warning information of the sand weather and controlling the start and stop of the fan;
the air inlet and outlet control system comprises an air inlet control system and an air outlet control system; the air inlet and outlet control system is used for controlling the opening and closing of the air inlet and outlet baffle of the fan;
the air inlet filtering system is used for controlling the opening and closing of the filter element and monitoring the air speed and pressure in front of and behind the filter element.
Further, the bottom of the fan is provided with an air inlet, the rear part of the fan is provided with an air outlet, and the air inlet is communicated with the air outlet; the air inlet control system is arranged at the air inlet; the air outlet control system is arranged at the air outlet; the air inlet control system comprises an air inlet baffle and an air inlet baffle controller, and the air inlet baffle is connected with the air inlet baffle controller; the air outlet control system comprises an air outlet baffle and an air outlet baffle controller, and the air outlet baffle is connected with the air outlet baffle controller.
Furthermore, the air inlet filtering system comprises a filter element and a filter element controller, the filter element is connected with the filter element controller, the filter element is arranged between the air inlet baffle and the air outlet baffle, and the filter element controller is used for controlling the opening and closing of the filter element; the front sensor of the filter element is arranged in front of the filter element, and the rear sensor of the filter element is arranged behind the filter element and used for monitoring the wind speed and the pressure in front of and behind the filter element.
On the other hand, the invention provides a control method of an air-to-air cooling automatic control early warning system of a wind driven generator, which is based on the air-to-air cooling automatic control early warning system of the wind driven generator and comprises the following steps:
synchronizing a GPS clock;
acquiring early warning information of sand weather through an SCADA (supervisory control and data acquisition) system, transmitting the early warning information to a control early warning system, and making a control strategy of a fan by the control early warning system according to different early warning information of sand weather;
and (4) making a control scheme according to a control strategy sent by the control early warning system, and judging whether the fan needs to be shut down to avoid dust and sand.
Further, the GPS clock synchronization includes:
the GPS clock is used for synchronizing the clock of the wind driven generator air-to-air cooling automatic control early warning system, so that the fan clock and the wind driven generator air-to-air cooling automatic control early warning system clock are unified.
Further, the SCADA system obtains sand weather early warning information through a sensor on the fan or obtains sand weather early warning information through weather forecast, the sand weather early warning information is transmitted to the control early warning system, and the control early warning system makes a control strategy of the fan according to different sand weather early warning information; when the weather information is sand and dust weather, the fan control strategy is to shut down to avoid sand and dust; when the weather information is normal weather, the fan control strategy is normal operation; and the control early warning system inputs a control strategy into the air inlet and outlet control system and the air inlet filtering system and controls the starting and stopping of the fan.
Further, the control strategy includes:
if the fan control strategy is to shut down and avoid dust and sand, obtaining the shutdown time of the fan; after the fan is stopped, the air inlet and outlet control system controls the air inlet baffle and the air outlet baffle of the fan to be closed through the air inlet baffle controller and the air outlet baffle controller; or the air inlet filtering system controls the filter element to open through the filter element controller; and after the sand weather passes, acquiring the starting time of the fan, opening the air inlet filtering system of the fan 15 minutes before the fan is started, and controlling the opening of the air inlet baffle and the air outlet baffle by the air inlet baffle controller and the air outlet baffle controller through the air inlet and air outlet control system.
Further, the control strategy includes:
if the fan control strategy is normal operation, acquiring the starting time of the sand weather; 2 hours before the beginning of the dust weather, the air inlet filtering system controls the filter element to be opened through the filter element controller; and closing the air inlet filtering system of the fan 2 hours after the sand dust weather is finished.
Further, the method also comprises the following steps: monitoring and early warning the blockage of the filter element according to the sensor in front of the filter element and the sensor behind the filter element; and monitoring the wind speed and pressure before and after the air inlet filtering system, judging the blocking condition of a filter element in the air inlet filtering system, and when the pressure exceeds a threshold value, feeding back a control system for early warning, and replacing the filter element.
Further, the threshold is 2 bar.
The invention has at least the following beneficial effects:
1. according to the invention, early warning information of sand weather is obtained through an SCADA system and is transmitted to a control early warning system, and the control early warning system makes a control strategy of the fan according to different early warning information of sand weather; and making a control scheme according to a control strategy sent by the control early warning system. The air inlet and outlet baffle plates of the fan are automatically closed or the air inlet filtering system is opened according to weather conditions, so that electric elements inside the engine room and the internal environment of the engine room are protected, and the service life and the reliability of equipment in the engine room are prolonged.
2. The invention can realize that the fan filters the inlet air of the air inlet under the working conditions of common sand dust and raising wadding; the sealing in the engine room is ensured, and the good working environment of the parts in the engine room is protected.
3. The invention can judge the blocking condition of the filter element by monitoring the air flow rate and pressure before and after the filter element, and assist the fan to send out early warning to replace the filter element within three months.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
In the drawings:
FIG. 1 is a schematic structural view of an air-to-air cooling automatic control early warning system of a wind driven generator;
fig. 2 is a control method of the wind driven generator air-to-air cooling automatic control early warning system.
Reference numerals: 1. an air inlet; 2. an air inlet baffle; 3. an air inlet baffle controller; 4. a filter element; 5. a filter element controller; 6. an air outlet; 7. an air outlet baffle; 8. an air outlet baffle controller; 9. controlling an early warning system; 10. an SCADA system; 11. a sensor in front of the filter element; 12. a sensor behind the filter element.
Detailed Description
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The following detailed description is exemplary in nature and is intended to provide further details of the invention. Unless otherwise defined, all technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention.
Example 1
As shown in fig. 1, an air-to-air cooling automatic control early warning system for a wind turbine includes:
a control early warning system 9, an air inlet and outlet control system and an air inlet filtering system; the air inlet and outlet control system and the air inlet filtering system are respectively connected with the control early warning system 9.
The system further comprises a data acquisition and monitoring control system, namely an SCADA system 10, wherein the SCADA system 10 is connected with the fan and used for acquiring sand weather early warning information and transmitting the sand weather early warning information to the control early warning system 9.
The control early warning system 9 is installed inside the fan and used for acquiring early warning information of sand weather transmitted by the SCADA system 10, acquiring predicted sand weather occurrence time, making a fan control strategy according to different early warning information of sand weather, and controlling the start and stop of the fan;
the bottom of the fan is provided with an air inlet 1, the rear part of the fan is provided with an air outlet 6, and the air inlet 1 is communicated with the air outlet 2; the air inlet and outlet control system comprises an air inlet control system and an air outlet control system; the air inlet control system is arranged at an air inlet 1 of the fan; the air outlet control system is arranged at the air outlet 6 of the fan; the air inlet control system comprises an air inlet baffle 2 and an air inlet baffle controller 3, and the air inlet baffle 2 is connected with the air inlet baffle controller 3; the air outlet control system comprises an air outlet baffle 7 and an air outlet baffle controller 8, and the air outlet baffle 7 is connected with the air outlet baffle controller 8; the air inlet and outlet control system is used for controlling the opening and closing of the air inlet and outlet baffle of the fan;
the air inlet filtering system comprises a filter element 4 and a filter element controller 5, the filter element 4 is arranged between the air inlet baffle plate 2 and the air outlet baffle plate 7, and the filter element controller 5 is used for controlling the opening and closing of the filter element 4. The wind speed and pressure sensor also comprises a sensor 11 in front of the filter element and a sensor 12 behind the filter element, and is used for monitoring the wind speed and pressure in front of and behind the filter element.
The system also comprises GPS clock synchronization equipment used for synchronizing clocks of all fans in the wind field; and a GPS clock is arranged on the fan.
The SCADA system 10 is provided with a SCADA system clock, and when the GPS clock and the SCADA system clock are respectively connected with the GPS clock synchronization equipment and the time of the SCADA system clock is not consistent with the time of the GPS clock, the time of the SCADA system clock needs to be adjusted according to the time of the GPS clock.
Example 2
As shown in fig. 2, a control method of an air-to-air cooling automatic control early warning system of a wind turbine includes:
synchronizing a GPS clock; and synchronizing the SCADA system clock with the GPS clock time through the GPS clock synchronization equipment.
Acquiring early warning information of sand weather, such as flying cotton, floating dust, flying sand, a sand storm, a strong sand storm and an extra strong sand storm, by the SCADA system 10, and acquiring predicted sand weather occurrence time and control strategies of a fan under different weather early warning information by the control early warning system 9;
the SCADA system 10 obtains early warning information of sand weather through a sensor on the fan or obtains the early warning information of sand weather through weather forecast, the early warning information of sand weather is transmitted to the control early warning system 9, and the control early warning system 9 makes a control strategy of the fan according to different early warning information of sand weather; when the weather information is sand and dust weather, the fan control strategy is to shut down to avoid sand and dust; when the weather information is normal weather, the fan control strategy is normal operation; the control early warning system 9 inputs the control strategy into the air inlet and outlet control system and the air inlet filtering system, and controls the start and stop of the fan.
Making a control scheme according to a control strategy sent by the control early warning system 9;
if the fan control strategy is to shut down and avoid dust and sand, obtaining the shutdown time of the fan; after the fan is stopped, the air inlet and outlet control system controls the air inlet and outlet baffle 2 and the air outlet baffle 7 to be closed through the air inlet baffle controller 3 and the air outlet baffle controller 8; or the air inlet filtering system controls the filter element 4 to open through the filter element controller 5; after the sand weather passes, acquiring the starting time of the fan, opening the air inlet filtering system 15 minutes before the fan is started, and controlling the opening of the air inlet baffle 2 and the opening of the air outlet baffle 7 by the air inlet baffle controller 3 and the air outlet baffle controller 8 by the air inlet and air outlet control system;
if the fan control strategy is normal operation, acquiring the starting time of the sand weather; 2 hours before the beginning of the dust weather, the air inlet filtering system controls the filter element 4 to be opened through the filter element controller 5; and closing the air inlet filtering system 2 hours after the sand dust weather is finished.
Monitoring and early warning the blockage of the filter element 4 according to the sensor 11 in front of the filter element and the sensor 12 behind the filter element; monitoring the wind speed and the pressure before and after the air inlet filtering system, judging the blocking condition of a filter element in the air inlet filtering system by analyzing the pressure difference under different wind speeds, and when the pressure exceeds a threshold value, feeding back the control early warning system 9 to replace the filter element in the next three months. The threshold value for the pressure is 2 bar.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.

Claims (10)

1. The utility model provides a aerogenerator air-to-air cooling automatic control early warning system which characterized in that includes:
the control early warning system (9), the air inlet and outlet control system and the air inlet filtering system; the air inlet and outlet control system and the air inlet filtering system are respectively connected with the control early warning system (9);
the system further comprises an SCADA system (10), wherein the SCADA system (10) is connected with the fan and used for acquiring sand weather early warning information and transmitting the sand weather early warning information to the control early warning system (9);
the control early warning system (9) is arranged in the fan and used for acquiring early warning information of sand weather transmitted by the SCADA system (10), acquiring predicted sand weather occurrence time, making a fan control strategy according to different early warning information of sand weather and controlling the start and stop of the fan;
the air inlet and outlet control system comprises an air inlet control system and an air outlet control system; the air inlet and outlet control system is used for controlling the opening and closing of the air inlet and outlet baffle of the fan;
the air inlet filtering system is used for controlling the opening and closing of the filter element and monitoring the air speed and pressure in front of and behind the filter element.
2. The automatic control early warning system for the air-to-air cooling of the wind driven generator according to claim 1, characterized in that an air inlet (1) is arranged at the bottom of the fan, an air outlet (6) is arranged at the rear part of the fan, and the air inlet (1) is communicated with the air outlet (6); the air inlet control system is arranged at the air inlet (1); the air outlet control system is arranged at the air outlet (6); the air inlet control system comprises an air inlet baffle (2) and an air inlet baffle controller (3), and the air inlet baffle (2) is connected with the air inlet baffle controller (3); the air outlet control system comprises an air outlet baffle (7) and an air outlet baffle controller (8), and the air outlet baffle (7) is connected with the air outlet baffle controller (8).
3. The automatic control early warning system for the air-to-air cooling of the wind driven generator according to claim 2, characterized in that the air inlet filtering system comprises a filter element (4) and a filter element controller (5), the filter element (5) is connected with the filter element controller (5), the filter element (4) is arranged between the air inlet baffle (2) and the air outlet baffle (7), and the filter element controller (5) is used for controlling the opening and closing of the filter element (4); a filter element front sensor (11) is arranged in front of the filter element (4), and a filter element rear sensor (12) is arranged behind the filter element (4) and used for monitoring the wind speed and the pressure in front of and behind the filter element.
4. A control method of an automatic control early warning system for air-to-air cooling of a wind driven generator is based on the automatic control early warning system for air-to-air cooling of a wind driven generator as claimed in claim 3, and is characterized by comprising the following steps:
synchronizing a GPS clock;
early warning information of sand weather is acquired through the SCADA system (10) and transmitted to the control early warning system (9), and the control early warning system (9) makes a control strategy of the fan according to different early warning information of sand weather;
and (4) making a control scheme according to a control strategy sent by the control early warning system (9) and judging whether the fan needs to be shut down to avoid dust and sand.
5. The control method of the wind driven generator air-to-air cooling automatic control early warning system according to claim 4, wherein the GPS clock synchronization comprises:
and synchronizing the SCADA system clock with the GPS clock time through the GPS clock synchronization equipment.
6. The control method of the wind driven generator air-to-air cooling automatic control early warning system according to claim 4, characterized in that the SCADA system (10) obtains sand weather early warning information through a sensor on a fan or obtains sand weather early warning information through weather forecast, the sand weather early warning information is transmitted to the control early warning system (9), and the control early warning system (9) makes a control strategy of the fan according to different sand weather early warning information; when the weather information is sand and dust weather, the fan control strategy is to shut down to avoid sand and dust; when the weather information is normal weather, the fan control strategy is normal operation; and the control early warning system (9) inputs a control strategy into the air inlet and outlet control system and the air inlet filtering system and controls the start and stop of the fan.
7. The control method of the wind driven generator air-to-air cooling automatic control early warning system according to claim 6, wherein the control strategy comprises:
if the fan control strategy is to shut down and avoid dust and sand, obtaining the shutdown time of the fan; after the fan is stopped, the air inlet and outlet control system controls the air inlet baffle (2) and the air outlet baffle (7) of the fan to be closed through the air inlet baffle controller (3) and the air outlet baffle controller (8); or the air inlet filtering system controls the filter element (4) to open through the filter element controller (5); and after the sand weather passes, acquiring the starting time of the fan, opening an air inlet filtering system of the fan 15 minutes before the fan is started, and controlling an air inlet baffle (2) and an air outlet baffle (7) to be opened by an air inlet baffle controller (3) and an air outlet baffle controller (8) through an air inlet baffle controller and an air outlet baffle controller.
8. The control method of the wind driven generator air-to-air cooling automatic control early warning system according to claim 6, wherein the control strategy comprises:
if the fan control strategy is normal operation, acquiring the starting time of the sand weather; 2 hours before the beginning of the sand and dust weather, the air inlet filtering system controls the filter element (4) to be opened through the filter element controller (5); and closing the air inlet filtering system of the fan 2 hours after the sand-dust weather is finished.
9. The control method of the wind driven generator air-to-air cooling automatic control early warning system according to claim 4, further comprising: according to the filter element front sensor (11) and the filter element rear sensor (12), the blockage of the filter element (4) is monitored and early warned; and monitoring the wind speed and the pressure before and after the air inlet filtering system, judging the blocking condition of a filter element in the air inlet filtering system, and when the pressure exceeds a threshold value, feeding back a control system for early warning (9) to replace the filter element.
10. The control method of the wind driven generator air-to-air cooling automatic control early warning system according to claim 9, wherein the threshold value is 2 bar.
CN202210552157.XA 2022-05-20 2022-05-20 Automatic control early warning system for air-to-air cooling of wind driven generator and control method thereof Withdrawn CN114753977A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210552157.XA CN114753977A (en) 2022-05-20 2022-05-20 Automatic control early warning system for air-to-air cooling of wind driven generator and control method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210552157.XA CN114753977A (en) 2022-05-20 2022-05-20 Automatic control early warning system for air-to-air cooling of wind driven generator and control method thereof

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Publication Number Publication Date
CN114753977A true CN114753977A (en) 2022-07-15

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CN202210552157.XA Withdrawn CN114753977A (en) 2022-05-20 2022-05-20 Automatic control early warning system for air-to-air cooling of wind driven generator and control method thereof

Country Status (1)

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Application publication date: 20220715