Wind speed and wind direction correction device for wind turbine generator

Abstract

The utility model relates to the field of wind turbine generators, and discloses a wind turbine generator wind speed and direction correction device which comprises a box body, an air temperature sensor and an air pressure sensor are arranged on the two sides of the upper end of the box body respectively, and a signal input interface is arranged at one corner of the upper end in the box body. A single-chip microcomputer, a wind turbine generator control system, a mutual exclusion relay and a storage battery are sequentially arranged in the box body from top to bottom. According to the device, temperature and pressure are compensated in real time, the wind measurement precision is improved, the fan performance is optimized, the system reliability is enhanced through the independent operation capacity, continuous operation is ensured when a network is interrupted, the operation safety is improved through the power failure protection function, the data interruption risk is avoided, and the built-in single chip microcomputer corrects response in real time and adapts to wind regime changes; the control precision and the response capability are improved, and the power generation efficiency, the stability and the safety of the wind turbine generator are comprehensively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of wind turbine, especially a kind of wind speed and direction correction device of wind turbine. BACKGROUND

[0002] With renewable energy increasingly valued and the extensive development of wind energy resources, wind turbine plays an increasingly important role in the field of power generation. However, accurate measurement of wind speed and direction is crucial for efficient operation and energy output of wind turbine. Traditional wind measurement equipment is affected by environmental factors (such as temperature, atmospheric pressure) in actual operation, and the measurement value may have deviation, resulting in decreased operation efficiency or unstable operation control of wind turbine.

[0003] Therefore, the skilled person in the art provides a wind speed and direction correction device for wind turbine to solve the problems raised in the background. SUMMARY

[0004] The utility model provides a kind of wind speed and direction correction device of wind turbine to solve the problems existing in prior art, which compensates temperature and pressure in real time, improves wind measurement accuracy, optimizes wind turbine performance, enhances system reliability with independent operation capability, ensures continuous operation during network interruption, improves operation safety with power failure protection function, avoids data interruption risk, adapts to wind condition changes with built-in single-chip real-time correction response, improves control accuracy and response capability, and comprehensively improves power generation efficiency, stability and safety of wind turbine.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A kind of wind speed and direction correction device of wind turbine, including box, temperature sensor and baroceptor are respectively arranged at the upper end of the box two sides, signal input interface is arranged at the inside upper end of the box one corner, single-chip microcontroller, wind turbine control system, mutual exclusion relay, battery are sequentially arranged from top to bottom in the inside of the box;

[0007] Through the above technical scheme, the device compensates temperature and pressure in real time, improves wind measurement accuracy, optimizes wind turbine performance, enhances system reliability with independent operation capability, ensures continuous operation during network interruption, improves operation safety with power failure protection function, avoids data interruption risk, adapts to wind condition changes with built-in single-chip real-time correction response, improves control accuracy and response capability, and comprehensively improves power generation efficiency, stability and safety of wind turbine.

[0008] Further, the temperature sensor and baroceptor, signal input interface constitute signal acquisition module, and GD32F450VET6 chip is used as main control device;

[0009] By the technical scheme, high-precision analog-digital conversion of the wind speed and direction signal is realized by using the high-precision GD32F450VET6 chip, and the accuracy and stability of the signal are ensured.

[0010] Further, the single-chip microcomputer is a signal processing module, and an RK3568 chip module is used as a main control chip.

[0011] By the technical scheme, the RK3568 chip module has high-performance computing capability and rich interface support, can quickly process complex correction algorithms, the graphic acceleration function is convenient for later extension such as a display module and the like, and a plurality of low-power modes adapt to long-term operation requirements of the wind farm and the like, and the efficiency and flexibility of the system are significantly improved.

[0012] Further, the wind turbine control system is a signal output module, and an STC8H3K64 chip is used as a main control chip.

[0013] By the technical scheme, the STC8H3K64 chip has the characteristics of high precision, high reliability and low power consumption, can stably output the corrected signal, and ensures that the wind turbine can be controlled according to the accurate wind speed and direction information.

[0014] Further, the mutual exclusion relay is a power failure protection module, and is composed of a relay A and a relay B.

[0015] By the technical scheme, the mutual exclusion relay ensures that the corrected signal is transmitted through the relay A when the system is normally powered, and is automatically switched to the bypass mode of the relay B when power failure occurs, and the original wind speed and direction signal is directly output without manual intervention, and the stable operation of the wind turbine control system is ensured.

[0016] Further, a box door is rotatably connected to a corner of the box body.

[0017] By the technical scheme, the box door can be easily opened and closed by the rotatable connection, and the internal components can be easily checked and maintained by the operator.

[0018] Further, the box body and the box door are made of stainless steel material.

[0019] By the technical scheme, in a high-humidity environment, the stainless steel material can effectively resist corrosion and ensure the long-term stability of the equipment.

[0020] Further, the storage battery, the single-chip microcomputer, the wind turbine control system, the mutual exclusion relay, the air temperature sensor and the air pressure sensor are electrically connected.

[0021] By the technical scheme, the storage battery provides a backup power supply for the system, and the continuous operation of the system can be ensured when the main power supply is interrupted.

[0022] Further, the signal input interface adopts a standardized input interface;

[0023] By the above technical solution, the standardized interface enables the device to be easily connected with other devices conforming to the same standard.

[0024] Further, the mutual exclusion relay is a power failure protection module, and its response time is less than 10 ms;

[0025] By the above technical solution, when a dangerous situation is detected, the mutual exclusion relay can switch the power supply in a very short time to prevent the accident from expanding.

[0026] The utility model has the advantages of:

[0027] 1. The wind speed and direction correction device for a wind turbine generator set disclosed by the utility model can compensate the influence of air temperature and atmospheric pressure on wind speed and direction measurement in real time, output more accurate signals, help optimize the operation strategy of the wind turbine generator set, and improve the power generation efficiency and operation stability.

[0028] 2. The wind speed and direction correction device for a wind turbine generator set disclosed by the utility model can be independently operated without relying on a SCADA or central control system, can continue to work when the network is interrupted or the central control system fails, and guarantees the continuous operation of the wind turbine generator set.

[0029] 3. The wind speed and direction correction device for a wind turbine generator set disclosed by the utility model can directly output original signals through signal bypass design under system power failure or abnormal conditions, avoids the safety risk of the wind turbine generator set caused by data interruption or false output.

[0030] 4. The wind speed and direction correction device for a wind turbine generator set disclosed by the utility model can realize local fast signal processing and real-time correction through the built-in single-chip microcomputer, adapt to the rapid change of wind speed and direction, and improve the control precision and dynamic response capability of the wind turbine. BRIEF DESCRIPTION OF DRAWINGS

[0031] Fig. 1 FIG. 4 is an axonometric view of the wind speed and direction correction device for a wind turbine generator set disclosed by the utility model;

[0032] Fig. 2 FIG. 5 is a schematic view of the internal structure of the wind speed and direction correction device for a wind turbine generator set disclosed by the utility model;

[0033] Fig. 3 FIG. 6 is a system structure diagram of the wind speed and direction correction device for a wind turbine generator set disclosed by the utility model.

[0034] LEGEND:

[0035] 1, box; 2, air temperature sensor; 3, air pressure sensor; 4, single-chip microcomputer; 5, wind turbine control system; 6, mutual exclusion relay; 7, battery; 8, box door; 9, signal input interface. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, instead of all the embodiments. Based on the embodiments of the utility model, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0037] Referring to Figs. 1-3 The utility model provides a kind of concrete implementation of a kind of wind turbine wind speed and direction correction device, including box 1, the upper end both sides of box 1 are provided with air temperature sensor 2 and air pressure sensor 3, signal input interface 9 is arranged at the inside upper end corner of box 1, the inside of box 1 is sequentially provided with single-chip microcomputer 4, wind turbine control system 5, mutual exclusion relay 6, battery 7 from top to bottom;

[0038] The device improves the wind measurement accuracy by real-time compensation of temperature and pressure, optimizes the performance of the fan, enhances the reliability of the system, ensures continuous operation when the network is interrupted, improves the operation safety by power failure protection function, avoids the risk of data interruption, real-time correction response by built-in single-chip microcomputer 4, adapts to wind condition changes, improves control accuracy and response ability, and comprehensively improves the power generation efficiency, stability and safety of wind turbine.

[0039] The air temperature sensor 2 and the air pressure sensor 3, and the signal input interface 9 form a signal acquisition module, a GD32F450VET6 chip is used as a main control device, by using a high-precision GD32F450VET6 chip, high-precision analog-to-digital conversion of the wind speed and direction signal can be realized, the accuracy and stability of the signal are ensured, the single-chip microcomputer 4 is a signal processing module, an RK3568 chip module is used as a main control chip, the RK3568 chip module has high-performance computing capability and rich interface support, can quickly process complex correction algorithms, its graphics acceleration function is convenient for later expansion such as display module and other applications, and various low-power modes adapt to the long-term operation demand of the wind farm environment, significantly improve the efficiency and flexibility of the system, the wind turbine control system 5 is a signal output module, an STC8H3K64 chip is used as a main control chip, the STC8H3K64 chip has the characteristics of high precision, high reliability and low power consumption, can stably output the corrected signal, ensures that the wind turbine can run according to the accurate wind speed and direction information, the mutual exclusion relay 6 is a power failure protection module, which is composed of relay A and relay B, the mutual exclusion relay ensures that the system normally supplies power through relay A to transfer the corrected signal, and automatically switches to the bypass mode of relay B when power failure occurs, directly outputs the original wind speed and direction signal, without manual intervention, ensures the stable operation of the wind turbine control system, one corner of the box body 1 is rotatably connected with the box door 8, through the rotatable connection, the box door 8 can be easily opened and closed, which is convenient for the operator to check and maintain the internal components, the box body 1 and the box door 8 are made of stainless steel material, in a high humidity environment, the stainless steel material can effectively resist corrosion, ensuring the long-term stability of the equipment, the storage battery 7, the single-chip microcomputer 4, the wind turbine control system 5, the mutual exclusion relay 6, the air temperature sensor 2 and the air pressure sensor 3 are electrically connected, the storage battery 7 provides backup power for the system, and the system can still ensure continuous operation when the main power is interrupted, the signal input interface 9 adopts a standardized input interface, the standardized interface makes the device can be easily connected with other devices meeting the same standard, the mutual exclusion relay 6 is a power failure protection module, its response time is less than 10ms, when a dangerous situation is detected, the mutual exclusion relay 6 can switch the power supply in a very short time to prevent the accident from expanding.

[0040] Working principle: when the device is used, firstly, in the signal acquisition stage, the wind speed and direction signal is connected to the device through the signal input interface 9, and the sensor collects the air temperature and atmospheric pressure data in real time. After all signals are processed by the anti-interference filter circuit, they enter the signal acquisition module and are converted by the GD32F450VET6 chip with high precision. Then, in the signal correction stage, the single-chip microcomputer receives the wind speed and direction signal and the environmental parameters, and calculates the correction value of the wind speed and direction according to the preset correction algorithm model. The correction algorithm comprehensively considers the influence of air temperature and atmospheric pressure on the measurement of wind speed and direction, and generates the corrected wind speed and direction signal in real time. Finally, in the signal output stage, the corrected wind speed and direction signal is processed by the STC8H3K64 chip and converted into a standardized analog signal 4-20mA, which is convenient for the wind turbine control system 5 to read. In addition, when the system is powered off or abnormal, the power failure protection module automatically switches to the bypass mode through the mutual exclusion relay 6, and outputs the uncorrected original wind speed and direction signal directly, so as to ensure that the wind turbine will not be affected by signal interruption and ensure safe operation.

[0041] Finally, it should be pointed out that: the above only the preferred specific embodiments of the present application, and is not intended to limit the present application, although the foregoing detailed description of the present application, for those skilled in the art, it can still be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A wind turbine wind speed and direction correction device comprising a housing (1) characterised in that: The upper end of the box (1) is provided with an air temperature sensor (2) and an air pressure sensor (3) on both sides, respectively, a signal input interface (9) is arranged at a corner of the upper end of the inside of the box (1), and the inside of the box (1) is sequentially provided with a single-chip microcomputer (4), a wind turbine generator control system (5), a mutual exclusion relay (6) and a storage battery (7) from top to bottom.

2. A wind speed and direction correction device for a wind turbine according to claim 1, characterized in that: The air temperature sensor (2) and the air pressure sensor (3) and the signal input interface (9) constitute a signal acquisition module, and a GD32F450VET6 chip is used as a main control device.

3. A wind speed and direction correction device for a wind turbine according to claim 1, characterized in that: The single-chip microcomputer (4) is a signal processing module, and an RK3568 chip module is used as a main control chip.

4. A wind speed and direction correction device for a wind turbine according to claim 1, characterized in that: The wind turbine generator control system (5) is a signal output module, and an STC8H3K64 chip is used as a main control chip.

5. A wind turbine wind speed and direction correction device according to claim 1, wherein: The mutual exclusion relay (6) is a power failure protection module, which is composed of a relay A and a relay B.

6. A wind turbine wind speed and direction correction device according to claim 1, wherein: A box door (8) is rotatably connected to a corner of the box (1).

7. A wind turbine wind speed and direction correction device according to claim 1, wherein: The box (1) and the box door (8) are both made of stainless steel material.

8. A wind turbine wind speed and direction correction device according to claim 1, wherein: The storage battery (7) and the single-chip microcomputer (4), the wind turbine generator control system (5), the mutual exclusion relay (6), the air temperature sensor (2) and the air pressure sensor (3) are all electrically connected.

9. A wind turbine wind speed and direction correction device according to claim 1, wherein: The signal input interface (9) adopts a standardized input interface.

10. A wind turbine wind speed and direction correction device according to claim 1, wherein: The mutual exclusion relay (6) is a power failure protection module, and its response time is less than 10ms.

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