Monitoring device for wind generating set

Abstract

The utility model relates to the technical field of wind power generation, and discloses a monitoring device for a wind generating set, which comprises an installation box, a power supply is arranged in the installation box, a controller is arranged on one side of the power supply, a communication cable is arranged on the right side of the controller, a LoRa wireless communication module is arranged above the controller, and a LoRa wireless communication module is arranged on the LoRa wireless communication module. According to the device, data are detected through a wind direction sensor and a wind speed sensor and transmitted to a single-chip microcomputer controller through a Modbus bus communication cable, an antenna of a LoRa wireless communication module extends out through an exhaust port, the data are sent to a tower bottom ground station, wind speed and wind direction graded delay yaw control can be achieved, the power generation capacity and equipment safety are both considered, and the device is simple in structure and convenient to use. Therefore, the method is suitable for monitoring the wind generating set.

Description

Technical Field

[0001] This utility model relates to the field of wind power generation technology, specifically a monitoring device for wind turbine generator sets. Background Technology

[0002] A wind turbine is a device that converts wind energy into electrical energy. It mainly consists of blades, a generator, mechanical components, and electrical components. Based on the different rotating shafts, wind turbines are mainly divided into two categories: horizontal axis wind turbines and vertical axis wind turbines. Currently, horizontal axis wind turbines dominate the market.

[0003] The acquisition and monitoring of wind power data plays an important role in the operation and scheduling of wind power generation. Conventional control methods for wind power yaw monitoring systems generally use PLCs and wired communication, which are costly. Furthermore, under traditional yaw strategy control, the yaw motor starts and stops frequently, and the wind speed classification during yaw execution is coarse, affecting power generation. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] The purpose of this utility model is to provide a monitoring device for wind turbine generator sets, in order to solve the problems mentioned in the background art, where conventional control methods for wind power yaw monitoring systems generally use PLCs and wired communication, which are costly, and where the yaw motor starts and stops frequently under traditional yaw strategy control, and the wind speed classification during yaw execution is coarse, affecting power generation.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a monitoring device for wind turbine generator sets, comprising a mounting box, a power supply installed inside the mounting box, a controller installed on one side of the power supply, a communication cable installed on the right side of the controller, a LoRa wireless communication module installed above the controller, and a detection mechanism installed at the top of the mounting box. By transmitting collected information such as wind speed and wind direction through a communication cable using the Modbus protocol, control cables can be saved. The LoRa wireless communication module has the advantages of long distance, strong anti-interference ability, low power consumption, and easy deployment.

[0008] Preferably, the detection mechanism includes a protective plate, a wind direction sensor, and a wind speed sensor. The protective plate is installed on the upper end of the mounting box, the wind direction sensor is installed on the upper end of the protective plate, and the wind speed sensor is installed on one side of the wind direction sensor. The protective plate can prevent rainwater from entering the mounting box. The wind direction sensor can detect the wind direction, and the wind speed sensor can detect the wind speed.

[0009] Preferably, one end of the mounting box is provided with an exhaust port, and a dustproof net is installed inside the exhaust port. The exhaust port facilitates heat dissipation, and the dustproof net can prevent dust from entering the mounting box.

[0010] Preferably, an air inlet is provided at the end of the mounting box away from the exhaust port. A dustproof net is installed inside the air inlet. A cooling fan is installed inside the mounting box on the side near the air inlet. The cooling fan facilitates the intake of cold air from the outside into the mounting box, and then carries away the heat generated by the operation of the device and discharges it through the exhaust port. This allows the device to cool down quickly and avoids the overheating from affecting the operation of the device.

[0011] Preferably, the lower end of the mounting box is equipped with a mounting base, and the upper end of the mounting base is connected with a fastening bolt by a thread. The fastening bolt facilitates the fixing of the monitoring device to the top of the wind turbine tower for use.

[0012] Preferably, the controller is a microcontroller, the communication cable is electrically connected to the wind direction sensor and the wind speed sensor, the communication cable 4 is electrically connected to the controller 3, the communication antenna of the LoRa wireless communication module extends out of the mounting box through the exhaust port, the extension of the communication antenna of the LoRa wireless communication module out of the mounting box can improve the stability of the communication effect, the communication cable adopts the Modbus communication protocol, thereby saving the use of cable and facilitating the transmission of detected data to the controller through the cable.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The monitoring device for this wind turbine generator set can detect wind speed and direction through wind direction and wind speed sensors. The wind speed and direction data are transmitted to the controller via a communication cable using the Modbus protocol. The controller processes the data and then sends the data detected by the monitoring device to the ground station controller at the bottom of the tower via a LoRa wireless communication module. The ground station controller transmits the data information to the human-machine interface for display via WiFi wireless communication, and performs cloud monitoring and data storage. This facilitates the development of yaw control and control strategies for the wind turbine generator set. It can achieve yaw after a certain time delay when the wind speed is high and the wind direction deviation is large, and yaw after a certain time delay when the wind speed is low and the wind direction deviation is small. This ensures power generation at low wind speeds and safe operation of the equipment at high wind speeds, reduces the workload of yaw maintenance, and improves the practicality of the monitoring device for the wind turbine generator set.

[0015] 2. The monitoring device for this wind turbine generator set, through the setting of the cooling fan, facilitates the intake of cold outside air into the installation box through the air inlet, and then carries away the heat generated by the operation of the device and discharges it through the exhaust port. This can quickly cool the device, avoid the overheating affecting the operation of the device, and improve the heat dissipation effect of the monitoring device for the wind turbine generator set. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the air inlet structure of the mounting box of this utility model;

[0018] Figure 3 This is a schematic cross-sectional view of the present invention.

[0019] Figure 4 This is a schematic diagram of the structure of the testing mechanism of this utility model.

[0020] In the diagram: 1. Mounting box; 2. Power supply; 3. Controller; 4. Communication cable; 5. LoRa wireless communication module; 6. Protective plate; 7. Wind direction sensor; 8. Wind speed sensor; 9. Exhaust port; 10. Dustproof net one; 11. Air inlet; 12. Dustproof net two; 13. Cooling fan; 14. Mounting base; 15. Fastening bolts. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-4 This utility model provides a technical solution:

[0023] A monitoring device for wind turbine generator sets includes a mounting box 1. A power supply 2 is installed inside the mounting box 1. A controller 3 is installed on one side of the power supply 2. A communication cable 4 is installed on the right side of the controller 3. A LoRa wireless communication module 5 is installed above the controller 3. A detection mechanism is installed at the top of the mounting box 1. The collected wind speed, wind direction and other information are transmitted through the communication cable 4 using the Modbus protocol, which can save control cables. The LoRa wireless communication module 5 has the advantages of long distance, strong anti-interference ability, low power consumption and easy deployment.

[0024] In this embodiment, the preferred detection mechanism includes a protective plate 6, a wind direction sensor 7, and a wind speed sensor 8. The protective plate 6 is installed on the upper end of the mounting box 1, the wind direction sensor 7 is installed on the upper end of the protective plate 6, and the wind speed sensor 8 is installed on one side of the wind direction sensor 7. The protective plate 6 can prevent rainwater from entering the mounting box 1. The wind direction sensor 7 can detect the wind direction, and the wind speed sensor 8 can detect the wind speed.

[0025] In this embodiment, preferably, one end of the installation box 1 is provided with an exhaust port 9, and a dustproof net 10 is installed inside the exhaust port 9. The exhaust port 9 is designed to facilitate heat dissipation, and the dustproof net 10 can prevent dust from entering the installation box 1.

[0026] In this embodiment, preferably, an air inlet 11 is provided at the other end of the mounting box 1 away from the exhaust port 9. A dustproof net 12 is installed inside the air inlet 11. A cooling fan 13 is installed inside the mounting box 1 on the side near the air inlet 11. The cooling fan 13 facilitates the intake of cold air from the outside into the mounting box 1, and then carries away the heat generated by the operation of the device and discharges it through the exhaust port 9. This allows the device to cool down quickly and avoids the device from operating due to excessive temperature.

[0027] In this embodiment, the lower end of the preferred mounting box 1 is equipped with a mounting base 14, and the upper end of the mounting base 14 is connected with a fastening bolt 15 by a thread. The fastening bolt 15 facilitates the fixing of the monitoring device to the top of the wind turbine tower for use.

[0028] In this embodiment, the controller 3 is preferably a microcontroller. The communication cable 4 is electrically connected to the wind direction sensor 7 and the wind speed sensor 8. The communication cable 4 is also electrically connected to the controller 3. The communication antenna of the LoRa wireless communication module 5 extends out of the mounting box 1 through the exhaust port 9. The extension of the communication antenna of the LoRa wireless communication module 5 out of the mounting box 1 can improve the stability of the communication effect. The communication cable 4 adopts the Modbus communication protocol, thereby saving the use of cable and facilitating the transmission of detected data to the controller 3 through the cable.

[0029] In this embodiment, a monitoring device for a wind turbine generator set is installed using fastening bolts 15 to secure it to the top of the wind turbine tower. During operation, wind speed and direction are detected by wind direction sensor 7 and wind speed sensor 8. The data is transmitted to controller 3 via communication cable 4 using the Modbus bus communication protocol. Controller 3 processes the data and then transmits it to ground station controller at the base of the tower via LoRa wireless communication module 5. Ground station controller transmits the data to human-machine interface for display via WiFi wireless communication, and performs cloud monitoring and data storage, facilitating the development of wind turbine yaw control and its control strategies. Cooling fan 13 draws in cool outside air through air inlet 11 into the mounting box 1, and then removes the heat generated by the device through exhaust port 9, allowing for rapid cooling and preventing overheating from affecting the device's operation.

[0030] Finally, it should be noted that the above content is only used to illustrate the technical solution of this utility model, and is not intended to limit the scope of protection of this utility model. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model do not depart from the essence and scope of the technical solution of this utility model.

Claims

1. A monitoring device for a wind turbine generator set, comprising a mounting box (1), characterized in that: The installation box (1) is equipped with a power supply (2), a controller (3) is provided on one side of the power supply (2), a communication cable (4) is provided on the right side of the controller (3), a LoRa wireless communication module (5) is provided above the controller (3), and a detection mechanism is provided at the top of the installation box (1). The detection mechanism includes a protective plate (6), a wind direction sensor (7) and a wind speed sensor (8). The upper end of the mounting box (1) is equipped with a protective plate (6), the upper end of the protective plate (6) is equipped with a wind direction sensor (7), and the side of the wind direction sensor (7) is equipped with a wind speed sensor (8). One end of the mounting box (1) is provided with an exhaust port (9), and a dustproof net (10) is installed inside the exhaust port (9). An air inlet (11) is provided at the other end of the mounting box (1) away from the exhaust port (9). A dustproof net (12) is installed inside the air inlet (11). A cooling fan (13) is installed inside the mounting box (1) on the side near the air inlet (11). The lower end of the mounting box (1) is equipped with a mounting base (14), and the upper end of the mounting base (14) is connected with a fastening bolt (15) by a thread. The controller (3) is a microcontroller. The communication cable (4) is electrically connected to the wind direction sensor (7) and the wind speed sensor (8). The communication cable (4) is electrically connected to the controller (3). The communication antenna of the LoRa wireless communication module (5) extends out of the mounting box (1) through the exhaust port (9).

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