Wind-solar complementary intelligent power supply and meteorological monitoring device and method for remote areas

Abstract

The invention discloses a wind-solar complementary intelligent power supply and meteorological monitoring device and method for a remote area, and the device comprises a mounting frame which is provided with an electric control box, a wind power generation system, a solar power generation system, and a wind speed measuring instrument. An electric energy storage battery, a main controller, a solar charging controller, a BMS management system, a LoRa communication unit and a super capacitor bank are arranged in the electric control box, the wind power generation system is connected with the electric energy storage battery through the super capacitor bank, and the solar power generation system is connected with the electric energy storage battery through the solar charging controller and the BMS management system. The main controller is in bidirectional signal transmission with the monitoring center through the LoRa communication unit, and the signal output ends of the wind power generation system, the solar power generation system and the wind speed measuring instrument are connected with the signal input end of the main controller. The power generation efficiency is remarkably improved, the reliability is extremely high, functions are highly integrated, remote operation and maintenance are convenient, the structural design is reasonable, and electric energy use in remote areas is facilitated.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of new energy, and particularly relates to a wind-solar complementary intelligent power supply and meteorological monitoring device and method for remote areas. BACKGROUND

[0002] With the growth of electricity demand in remote areas, wind-solar complementary power supply systems are widely used due to their complementary resources. However, the existing systems still have many defects: traditional solar panels are mostly fixedly installed or single-axis tracked, with low energy capture efficiency, and lack of active protection mechanisms in severe weather such as strong winds and hail, which easily leads to equipment damage; small wind turbines, especially vertical axis wind turbines, generally have high starting wind speed and mismatched tip speed ratio under variable wind speed conditions, which leads to low wind energy conversion efficiency; the existing systems have single functions, the deployment cost of independent meteorological monitoring stations is high, it is difficult to form an effective data network, the system has weak remote monitoring capability, and maintenance is difficult after a fault occurs. Therefore, there is an urgent need for a high-reliability comprehensive solution that integrates efficient power generation, intelligent protection, state monitoring and remote operation and maintenance. SUMMARY

[0003] The purpose of the present application is to provide a wind-solar complementary intelligent power supply and meteorological monitoring device and method for remote areas, which has high intelligent degree and high power generation efficiency.

[0004] To solve the above technical problems, the present application adopts the following technical scheme: a wind-solar complementary intelligent power supply and meteorological monitoring device for remote areas, comprising a mounting frame, an electric control box, a wind power generation system, a solar power generation system and a wind speed measuring instrument are arranged on the mounting frame, an electric energy storage battery, a main controller, a solar charging controller, a BMS management system, a LoRa communication unit and a super capacitor group are arranged in the electric control box, the wind power generation system is connected with the electric energy storage battery through the super capacitor group, the solar power generation system is connected with the electric energy storage battery through the solar charging controller and the BMS management system, the main controller is connected with a monitoring center for bidirectional signal transmission through the LoRa communication unit, and signal output ends of the wind power generation system, the solar power generation system and the wind speed measuring instrument are connected with a signal input end of the main controller.

[0005] The mounting frame comprises three vertical vertical rods, the vertical projections of the three vertical rods are located at the three vertices of an equilateral triangle, and the three vertical rods are spaced apart from top to bottom to form an upper triangular plate, a middle triangular plate and a lower triangular plate, the electric control box is arranged on the lower triangular plate, and the wind speed measuring instrument is arranged on the upper triangular plate.

[0006] The wind power generation system comprises a driving shaft and a generator, the driving shaft is vertically arranged, the upper end of the driving shaft is rotatably connected to the bottom surface of the upper triangular plate through an upper bearing, the lower end of the driving shaft is rotatably connected to the top surface of the lower triangular plate through a lower bearing, the middle part of the driving shaft passes through the middle triangular plate and is rotatably connected to the middle triangular plate through a middle bearing, three wind blades are evenly arranged on the driving shaft between the upper triangular plate and the lower triangular plate, the wind blades are of a composite three-dimensional twisted structure, the generator is arranged on the lower triangular plate, and the lower part of the driving shaft is in transmission connection with the power input end of the generator through a speed reducer.

[0007] The solar power generation system comprises a support rod, a solar panel, a light tracking motor set and a four-way light sensitive sensor array, the support rod is vertically arranged, the lower end of the support rod is fixedly connected to the upper triangular plate, the upper end of the support rod is connected to the bottom surface of the solar panel through the light tracking motor set, and the four-way light sensitive sensor array is built in the solar panel.

[0008] The light tracking motor set comprises a horizontal rotary motor and a vertical rotary motor, the bottom of the horizontal rotary motor is fixedly arranged on the upper end of the support rod, the main shaft of the horizontal rotary motor is arranged on the same center line as the support rod, the bottom of the vertical rotary motor is fixedly arranged on the upper end of the main shaft of the horizontal rotary motor, the center line of the main shaft of the vertical rotary motor is horizontally arranged, and the main shaft of the vertical rotary motor is fixedly connected to the bottom of the solar panel through a connecting piece.

[0009] The wind-solar complementary intelligent power supply and meteorological monitoring method for remote areas is implemented by using a wind-solar complementary intelligent power supply and meteorological monitoring device, and comprises the following steps.

[0010] S1, the wind-solar complementary intelligent power supply and meteorological monitoring device is installed at a specified position, and the lower triangular plate is connected to the bottom surface of the specified position through expansion bolts;

[0011] S2, the solar power generation system absorbs sunlight to generate photovoltaic power during the day, the wind power generation system keeps working to generate wind power all day long, and the wind speed measuring instrument measures the wind speed in real time; the electric energy generated by photovoltaic power generation and wind power generation is stored in the electric energy storage battery in the control line, the wind speed signal is transmitted to the main controller, and then transmitted to the monitoring center through the LoRa communication unit; and the monitoring center monitors the local wind speed in real time.

[0012] S3, all data is transmitted to the monitoring center by the LoRa communication unit, the LoRa communication unit remotely receives the signal of the monitoring center to the main controller, and sends instructions to manually fold the solar panel and forcibly limit the maximum output power of the fan to the staff when necessary.

[0013] S4, after the electric energy storage battery is fully charged, the fully charged electric energy storage battery is taken out for use, and the electric energy storage battery that needs to be charged is placed in the electric control box for charging.

[0014] The solar energy system in step S2 adopts a solar panel to track light in real time in the working process, including: 1) real-time detection of a light tracking mode and 2) real-time astronomical algorithm light tracking mode;

[0015] 1) The real-time detection of the light tracking mode is specifically as follows:

[0016] A four-way light sensor array monitors the position of sunlight in real time, and transmits a monitoring signal to a main controller. The main controller calculates data acquisition and errors of light intensity, and outputs a control signal to a horizontal rotating motor and a vertical rotating motor through a PID algorithm, so that the solar panel is perpendicular to the sun. At the same time, the main controller calculates the solar azimuth angle as a backup reference in real time;

[0017] The light intensity calculation formula is as follows:

[0018]

[0019] In the formula, V adc is a voltage value collected by an ADC channel;

[0020] Error generation:

[0021] E(t) = Lux right -Lux left (2)

[0022] In the formula, Lux right , Lux left are light intensities measured by right and left light-sensitive resistors respectively (the light intensity error measured by the upper and lower light-sensitive resistors is calculated in the same way as the left and right calculation) ;

[0023] The controllers of the horizontal rotating motor and the vertical rotating motor both adopt a PID control algorithm, and the PWM OUT of the driving motor is

[0024]

[0025] In the formula, K p , K i , K d are controller parameters, and different light conditions can be adapted by adjusting the parameters;

[0026] 2) Real-time astronomical algorithm light tracking mode

[0027] The system preferentially runs the photovoltaic light tracking mode 1); if a light sensor is damaged or has abnormal values, the system automatically switches to a pure astronomical algorithm mode to continue working;

[0028] Astronomical algorithm redundancy compensation:

[0029] Real-time calculation of the solar azimuth angle (enabled when the light sensor fails):

[0030]

[0031] In the formula: H is the hour angle, is the latitude, and δ is the declination angle;

[0032] Angle calibration: record the actual motor angle θ every 30 seconds check , θ sun - θ check > 5°, the astronomical algorithm is used to obtain the sun azimuth value to control the PWM output of the horizontal rotating motor and the vertical rotating motor.

[0033] In step S2, the wind power generation system operates all day long, the main controller reads the wind speed monitor and the generator speed, calculates the current tip speed ratio (TSR), and compares it with the preset optimal value; the output PWM signal duty cycle to the MOS tube is adjusted through the PID algorithm, the MOS tube connected to the output end of the generator is dynamically adjusted through the PWM signal conduction ratio, so as to control the generator load, make it stable in the vicinity of the optimal tip speed ratio, dynamically change the load, and lock the wind blade speed in the high efficiency interval; the instantaneous large current is absorbed and buffered by the super capacitor, and then smoothly charges the power storage battery;

[0034] Wind speed-speed synchronous detection, the ADC reads the voltage of the wind speed measuring instrument as U adc , and the wind speed is calculated as:

[0035] V wind = 0.027 × U adc (5)

[0036] The Hall sensor captures the motor magnetic pole frequency f, and obtains the motor speed ω;

[0037] Real-time TSR calculation:

[0038]

[0039] In the formula, R is the radius of the wind blade;

[0040] The tip speed ratio calculation is related to the load regulation, the MOS tube PWM regulation, and the target TSR (the best efficiency point of the vertical axis wind turbine):

[0041] λ opt = 3.5 (7) PWM duty cycle adjustment amount:

[0042] ΔD = K P_tsr · (λ opt - λ) + K i_tsr · ∑ (λ opt - λ) (8)

[0043] In the formula, KP_tsr and K i_tsr is an adjustment parameter, by adjusting the MOS transistor conduction ratio, changing the generator electromagnetic load, so that the tip speed ratio λ∈[3.2, 3.8];

[0044] The main controller is also configured with a strong wind protection strategy: when the wind speed measuring instrument data exceeds the set threshold, the controller will ignore the light chasing instruction, and the main controller continuously monitors the wind speed during operation; if the wind speed exceeds 15 m / s, the wind speed is too large at this time, and the device is immediately interrupted to chase light, and the main controller instructs the horizontal rotating motor and the vertical rotating motor to start, so that the solar panel is rotated to be parallel to the wind direction until the wind speed decreases; the light chasing motor group is preferentially controlled to adjust the solar panel to an angle parallel to the wind direction to minimize wind resistance and protect the equipment safety.

[0045] Compared with the prior art, the mounting frame of the application is a three-prism frame structure as a whole. The solar panel can rotate within the horizontal azimuth angle range of 0-360° and the pitch angle range of 0-90°. The solar panel is selected to be a single crystal silicon panel, and the edges thereof are uniformly arranged with 4 light-dependent resistors to form a sensor array.

[0046] The three vertical rods form a natural barrier, which protects the high-speed rotating fan blades from external impact, and has a guide effect that can converge wind volume, thereby improving the starting performance to a certain extent. The wind speed measuring instrument is installed on the upper triangular plate to accurately measure the wind conditions acting on the solar panel. The fan blades can be formed by additive manufacturing (3D printing) process, and the three-dimensional twisted shape thereof is optimized through preliminary aerodynamic simulation to balance the starting torque and operating efficiency.

[0047] All circuit systems are integrated in the electric control box. The STM32 series single-chip microcomputer is used as the main controller. The fan blades driven by the wind force drive the drive shaft, and the drive shaft drives the generator to generate three-phase alternating current, which is converted into direct current after the rectifier bridge. The direct current output end is connected in parallel with a super capacitor group (optional 24V, 500F), and is connected in series with a MOS tube circuit controlled by the main controller through PWM. By adjusting the conduction degree of the MOS tube, the load of the generator is equivalent changed, so that the speed control is realized. The electric energy output by the solar panel is connected to a dedicated solar charging controller, which efficiently charges the lithium battery. The BMS management system is responsible for monitoring the voltage, current and temperature state of the electric energy storage battery (lithium battery group). The LoRa communication unit communicates with the main controller through the serial port, encapsulates the data and transmits it to the remote gateway device.

[0048] The super capacitor group is used for buffering the unstable voltage generated by the generator and storing part of the electric energy; the solar charging controller is used for tracking and maintaining the maximum power output of the solar panel in real time, and the electric energy obtained by both is stored in the lithium battery group after being processed by the BMS management system, and finally the electric energy stored in the lithium battery group and the super capacitor is used for supplying power to the power supply equipment. A set of LoRa remote communication unit is responsible for uploading all system data (voltage, current, wind speed, rotating speed, attitude angle and the like) to the remote monitoring center, and can receive control instructions from the remote monitoring center.

[0049] In summary, the present application has the following technical effects:

[0050] 1. The power generation efficiency is significantly improved: the double-redundant light tracking mechanism ensures the high-precision operation of the photovoltaic system under various weather conditions; the combination of dynamic closed-loop control of the fan tip speed ratio and the aerodynamic optimized fan blade greatly improves the wind energy capture efficiency.

[0051] 2. The system reliability is extremely high: the photoelectric sensor and the astronomical algorithm are mutually backed up, solving the single-point failure problem of the sensor; the strong wind protection strategy can actively avoid the risk of severe weather, prolonging the service life of the equipment.

[0052] 3. The function is highly integrated: one set of system simultaneously solves the power supply and weather monitoring two major needs, and through LoRa networking can constitute a low-cost regional weather monitoring network, with high added value.

[0053] 4. Remote operation is convenient: all key data are remotely visible, and some faults can be diagnosed and recovered through remote instructions, greatly reducing the maintenance cost and time in remote areas.

[0054] 5. The structure is reasonably designed: the installation frame adopts three vertical rods arranged in an equilateral triangle, which not only provides physical protection for the fan, but also reduces wind resistance due to its aerodynamic shape, and the overall structure is compact and solid, suitable for outdoor harsh environments.

[0055] 6. The electric energy generated by wind power and solar power is stored in the lithium battery group in the electric control box, and the battery can be replaced after being fully charged, facilitating the use of electric energy in remote areas. BRIEF DESCRIPTION OF DRAWINGS

[0056] Figure 1 It is a schematic diagram of the three-dimensional structure of the present application;

[0057] Figure 2 It is a schematic diagram of the side elevation projection of the present application;

[0058] Figure 3 It is Figure 2 the enlarged view of the middle A part;

[0059] Figure 4 It is a control principle block diagram of the present application. DETAILED DESCRIPTION

[0060] As Figures 1-4 shown, the wind-solar complementary intelligent power supply and meteorological monitoring device for remote areas comprises a mounting frame, an electric control box 1, a wind power generation system, a solar power generation system and a wind speed measuring instrument 2 are arranged on the mounting frame, an electric energy storage battery 3, a main controller 4, a solar charging controller 5, a BMS management system 6, a LoRa communication unit 7 and a super capacitor group 8 are arranged in the electric control box 1, the wind power generation system is connected with the electric energy storage battery 3 through the super capacitor group 8, the solar power generation system is connected with the electric energy storage battery 3 through the solar charging controller 5 and the BMS management system 6, the main controller 4 is connected with a monitoring center 23 for bidirectional signal transmission through the LoRa communication unit 7, and signal output ends of the wind power generation system, the solar power generation system and the wind speed measuring instrument 2 are connected with a signal input end of the main controller 4.

[0061] The mounting frame comprises three vertical vertical rods 9, vertical projections of the three vertical rods 9 are located at three vertices of an equilateral triangle, the three vertical rods 9 are spaced apart from top to bottom to form an upper triangular plate 10, a middle triangular plate 11 and a lower triangular plate 12, the electric control box 1 is arranged on the lower triangular plate 12, and the wind speed measuring instrument 2 is arranged on the upper triangular plate 10.

[0062] The wind power generation system comprises a driving shaft 13 and a generator 14, the driving shaft 13 is vertically arranged, the upper end of the driving shaft 13 is rotatably connected to the bottom surface of the upper triangular plate 10 through an upper bearing, the lower end of the driving shaft 13 is rotatably connected to the top surface of the lower triangular plate 12 through a lower bearing, the middle part of the driving shaft 13 penetrates through the middle triangular plate 11 and is rotatably connected to the middle triangular plate 11 through a middle bearing, three wind blades 15 are evenly arranged on the driving shaft 13 between the upper triangular plate 10 and the lower triangular plate 12, the wind blades 15 are of a composite three-dimensional twisted structure, the generator 14 is arranged on the lower triangular plate 12, and the lower part of the driving shaft 13 is in transmission connection with the power input end of the generator 14 through a speed reducer 16.

[0063] The solar power generation system comprises a support rod 17, a solar panel 18, a light tracking motor group 19 and a four-way photosensitive sensor array 20, the support rod 17 is vertically arranged, the lower end of the support rod 17 is fixedly connected to the upper triangular plate 10, the upper end of the support rod 17 is connected to the bottom surface of the solar panel 18 through the light tracking motor group 19, and the four-way photosensitive sensor array 20 is built in the solar panel 18.

[0064] The light tracking motor group 19 comprises a horizontal rotary motor 21 and a vertical rotary motor 22, the bottom of the horizontal rotary motor 21 is fixedly arranged on the upper end of the support rod 17, the main shaft of the horizontal rotary motor 21 is arranged on the same center line as the support rod 17, the bottom of the vertical rotary motor 22 is fixedly arranged on the upper end of the main shaft of the horizontal rotary motor 21, the center line of the main shaft of the vertical rotary motor 22 is horizontally arranged, and the main shaft of the vertical rotary motor 22 is fixedly connected to the bottom of the solar panel 18 through a connecting piece 23.

[0065] The method for wind-solar complementary intelligent power supply and meteorological monitoring in remote areas is implemented by a wind-solar complementary intelligent power supply and meteorological monitoring device, comprising the following steps:

[0066] S1, install the wind-solar complementary intelligent power supply and meteorological monitoring device to the designated position, and connect the lower triangular plate 12 with the bottom surface of the designated position through expansion bolts;

[0067] S2, the solar power generation system absorbs sunlight during the day to generate photovoltaic power, the wind power generation system works all day and all night to generate wind power, and the anemometer 2 measures the wind speed in real time; the electric energy generated by photovoltaic power generation and wind power generation is stored in the electric energy storage battery 3 in the control line, the wind speed signal is transmitted to the main controller 4, and then transmitted to the monitoring center 23 through the LoRa communication unit 7, and the monitoring center 23 monitors the local wind speed in real time;

[0068] S3, all data are transmitted to the monitoring center 23 by the LoRa communication unit 7 module, the LoRa communication unit 7 remotely receives the signal of the monitoring center 23 to the main controller 4, and sends instructions to manually fold the solar panel 18 and forcibly limit the maximum output power of the fan to the staff when necessary;

[0069] S4, after the electric energy storage battery 3 is fully charged, the fully charged electric energy storage battery 3 is taken out for use, and the electric energy storage battery 3 that needs to be charged is placed in the electric control box 1 for charging.

[0070] In step S2, the solar panel 18 is used to track light in real time during the working process of the solar power generation system, including: 1) real-time detection of tracking mode and 2) real-time astronomical algorithm tracking mode;

[0071] 1) The real-time detection tracking mode is described as follows:

[0072] The four-way photosensitive sensor array monitors the position of sunlight in real time, transmits the monitoring signal to the main controller, and the main controller calculates the data acquisition and error of the light intensity, and outputs the control signal to the horizontal rotating motor and the vertical rotating motor through the PID algorithm, so that the solar panel is perpendicular to the sun; at the same time, the main controller calculates the solar azimuth angle in real time as a backup reference;

[0073] The light intensity calculation formula is:

[0074]

[0075] In the formula, V adc is the voltage value collected by the ADC channel;

[0076] Error generation:

[0077] E(t) = Lux right -Luxleft (2)

[0078] In the formula, Lux right , Lux left are the light intensities measured by the right and left light-dependent resistors (the light intensity measurement error of the upper and lower light-dependent resistors is the same as the left and right calculation method);

[0079] The controllers of the horizontal rotating motor and the vertical rotating motor both adopt a PID control algorithm, and the PWM OUT of the driving motor is

[0080]

[0081] In the formula, K p , K i , and K d are controller parameters, and the parameters can be adjusted to adapt to different light conditions;

[0082] 2) Real-time astronomical algorithm light tracking mode

[0083] The system preferentially runs the photovoltaic light tracking mode 1); if a certain road light sensor is damaged or has abnormal values, the system automatically switches to the pure astronomical algorithm mode to continue working;

[0084] Astronomical algorithm redundancy compensation:

[0085] Real-time calculation of the solar azimuth angle (enabled when the light sensor fails):

[0086]

[0087] In the formula: H is the hour angle, is the latitude, and δ is the declination angle;

[0088] Angle calibration: record the actual motor angle θ check every 30 seconds sun - θ check > 5°, the astronomical algorithm is used to obtain the solar azimuth angle value to control the PWM output of the horizontal rotating motor and the vertical rotating motor.

[0089] In step S2, the wind power generation system runs all day, the main controller 4 reads the wind speed monitor and the generator 14 speed, calculates the current tip speed ratio (TSR), and compares it with the preset optimal value; the PWM signal duty cycle output to the MOS tube is adjusted through the PID algorithm, the MOS tube conduction ratio connected to the output end of the generator 14 is dynamically adjusted through the PWM signal, so as to control the generator 14 load, make it stable in the vicinity of the optimal tip speed ratio, dynamically change the load, and lock the wind blade 15 speed in the high efficiency interval; the instantaneous large current is absorbed and buffered by the super capacitor, and then smoothly charges the power storage battery 3;

[0090] Wind speed - rotation speed synchronous detection, ADC reads the wind speed meter voltage as U adc , the wind speed is calculated as:

[0091] V wind = 0.027xU adc (5)

[0092] The Hall sensor captures the motor magnetic pole frequency as f, and the motor rotation speed as ω;

[0093] TSR real-time calculation:

[0094]

[0095] In the formula, R is the radius of the wind blade;

[0096] The tip speed ratio calculation is related to the load regulation, MOS tube PWM regulation, target TSR (vertical axis wind turbine best efficiency point):

[0097] λ opt = 3.5 (7) PWM duty cycle adjustment amount:

[0098] ΔD = K P_tsr ·(λ opt - λ) + K i_tsr ·∑(λ opt - λ) (8)

[0099] In the formula, K P_tsr and K i_tsr are adjustment parameters, by adjusting the MOS tube conduction ratio, changing the generator electromagnetic load, so that the tip speed ratio λ ∈ [3.2, 3.8];

[0100] The main controller 4 is also configured with a strong wind protection strategy: when the wind speed meter data exceeds the set threshold value, the controller will ignore the light chasing instruction, and during operation, the main controller 4 continuously monitors the wind speed; if the wind speed exceeds 15 m / s, at this time the wind speed is too large, in order to protect the device, the light chasing is immediately interrupted, the main controller instructs the horizontal rotating motor and the vertical rotating motor to start, so that the solar panel 18 is rotated to be parallel to the wind direction, until the wind speed decreases; the light chasing motor group is preferentially controlled to adjust the solar panel 18 to an angle parallel to the wind direction, so as to minimize the wind resistance and protect the safety of the equipment.

[0101] The above examples illustrate the basic principles and characteristics of the present application, but the above only illustrates the preferred embodiments of the present application, and is not limited by the described embodiments. Those skilled in the art can make many forms of deformation and improvement under the inspiration of the present patent without departing from the purpose of the present application and the scope protected by the claims, which all belong to the protection scope of the present application. Therefore, the present patent and the protection scope should be subject to the appended claims.

Claims

1. A wind-solar complementary intelligent power supply and meteorological monitoring device for remote areas, characterized in that: The installation frame is provided with an electric control box, a wind power generation system, a solar power generation system and a wind speed measuring instrument, the electric control box is internally provided with an electric energy storage battery, a main controller, a solar charging controller, a BMS management system, a LoRa communication unit and a super capacitor group, the wind power generation system is connected with the electric energy storage battery through the super capacitor group, the solar power generation system is connected with the electric energy storage battery through the solar charging controller and the BMS management system, the main controller is in two-way signal transmission with the monitoring center through the LoRa communication unit, and the signal output ends of the wind power generation system, the solar power generation system and the wind speed measuring instrument are connected with the signal input end of the main controller.

2. The wind-solar hybrid intelligent power supply and weather monitoring device for remote areas as claimed in claim 1 wherein: The installation frame comprises three vertical vertical rods, the vertical projections of the three vertical rods are located at the three vertices of an equilateral triangle, the three vertical rods are spaced apart from top to bottom to form an upper triangular plate, a middle triangular plate and a lower triangular plate, the electric control box is arranged on the lower triangular plate, and the wind speed measuring instrument is arranged on the upper triangular plate.

3. The wind-solar hybrid intelligent power supply and weather monitoring device for remote areas as claimed in claim 2 wherein: The wind power generation system comprises a driving shaft and a generator, the driving shaft is vertically arranged, the upper end of the driving shaft is rotatably connected to the bottom surface of the upper triangular plate through an upper bearing, the lower end of the driving shaft is rotatably connected to the top surface of the lower triangular plate through a lower bearing, the middle part of the driving shaft penetrates through the middle triangular plate and is rotatably connected to the middle triangular plate through a middle bearing, and three wind blades are uniformly arranged on the driving shaft between the upper triangular plate and the lower triangular plate, the wind blades are of a composite three-dimensional twisted structure, the generator is arranged on the lower triangular plate, and the lower part of the driving shaft is in transmission connection with the power input end of the generator through a speed reducer.

4. The wind-solar complementary intelligent power supply and weather monitoring device for remote areas according to claim 3, characterized in that: The solar power generation system comprises a supporting rod, a solar panel, a light tracking motor group and a four-way photosensitive sensor array, the supporting rod is vertically arranged, the lower end of the supporting rod is fixedly connected to the upper triangular plate, the upper end of the supporting rod is connected to the bottom surface of the solar panel through the light tracking motor group, and the four-way photosensitive sensor array is built-in the solar panel.

5. The wind-solar hybrid intelligent power supply and weather monitoring device for remote areas as claimed in claim 4 wherein: The light tracking motor group comprises a horizontal rotary motor and a vertical rotary motor, the bottom of the horizontal rotary motor is fixedly arranged on the upper end of the supporting rod, the main shaft of the horizontal rotary motor is arranged on the same center line as the supporting rod, the bottom of the vertical rotary motor is fixedly arranged on the upper end of the main shaft of the horizontal rotary motor, the center line of the main shaft of the vertical rotary motor is horizontally arranged, and the main shaft of the vertical rotary motor is fixedly connected to the bottom of the solar panel through a connecting piece.

6. The method for wind-solar complementary intelligent power supply and meteorological monitoring in remote areas, which is implemented by the wind-solar complementary intelligent power supply and meteorological monitoring device according to claim 5, characterized in that: The method comprises the following steps: S1, the wind-solar complementary intelligent power supply and weather monitoring device is installed at a specified position, the lower triangular plate is connected to the bottom surface of the specified position through expansion bolts; S2, the solar power generation system absorbs sunlight for photovoltaic power generation during the day, the wind power generation system keeps working for wind power generation all day long, and the wind speed measuring instrument measures the wind speed in real time; the electric energy generated by photovoltaic power generation and wind power generation is stored in the electric energy storage battery in the control line, the wind speed signal is transmitted to the main controller, and then transmitted to the monitoring center through the LoRa communication unit, and the monitoring center monitors the local wind speed in real time; S3, all data is transmitted to the monitoring center by the LoRa communication unit, the LoRa communication unit remotely receives the signal of the monitoring center to the main controller, and sends instructions for manually folding the solar panel and forcibly limiting the maximum output power of the wind turbine to the staff when necessary. S4, after the electric energy storage battery is fully charged, the fully charged electric energy storage battery is taken out for use, and the electric energy storage battery needing to be charged is placed in the electric control box for charging.

7. The method as claimed in claim 6, wherein the method for remote area wind-solar hybrid smart power supply and weather monitoring system further comprises of: In step S2, the solar power generation system adopts a solar panel to track light in real time in the working process, including: 1) real-time detection of tracking mode and 2) real-time astronomical algorithm tracking mode; 1) the real-time detection of tracking mode is specifically as follows: A four-way light-sensitive sensor array monitors the position of sunlight in real time, and transmits the monitoring signal to the main controller. The main controller calculates the data acquisition and error of the light intensity, and outputs the control signal to the horizontal rotating motor and the vertical rotating motor through the PID algorithm, so that the solar panel is perpendicular to the sun. At the same time, the main controller calculates the solar azimuth angle as a backup reference in real time; The data acquisition and error calculation of the light intensity is as follows: The light-sensitive signal acquisition mode: the main controller samples the voltage of the light-sensitive resistor through the ADC channel (12-bit precision) in a cycle; The light intensity calculation formula is as follows: In the formula, V adc is the voltage value collected by the ADC channel; Error generation: E(t) = Lux right - Lux left (2) In the formula, Lux right , Lux left are the light intensities measured by the right and left light-dependent resistors respectively (the light intensity error of the upper and lower light-dependent resistors is the same as the left and right calculation method). The controllers of the horizontal rotating motor and the vertical rotating motor both adopt PID control algorithm, and the PWM OUT For where K p , K i , K d are controller parameters that can be adjusted to adapt to different lighting conditions. 2) real-time astronomical algorithm tracking mode The system preferentially runs the photovoltaic tracking mode 1); if a light-sensitive sensor is damaged or the value is abnormal, the system automatically switches to the pure astronomical algorithm mode to continue working; Astronomical algorithm redundancy compensation: Real-time calculation of the solar azimuth angle (activated when the light-sensitive sensor fails): where H is the hour angle, is the latitude, and δ is the declination angle. Angle calibration: record actual motor angle θ every 30 seconds check , θ sun - θ check > 5°, the astronomical algorithm is used to obtain the sun azimuth value to control the horizontal rotation motor and the vertical rotation motor PWM output.

8. The method for wind-solar complementary intelligent power supply and weather monitoring in remote areas according to claim 6, characterized in that: In step S2, the wind power generation system runs all-weather, the main controller reads the wind speed monitor and the generator speed, calculates the current tip speed ratio (TSR), and compares it with the preset optimal value; the PID algorithm is used to adjust the PWM signal duty cycle output to the MOS tube, and the MOS tube connected to the generator output end is dynamically adjusted by the PWM signal to control the generator load, so that it runs near the optimal tip speed ratio, dynamically changes the load, and locks the wind blade speed in the high efficiency interval; the instantaneous large current is absorbed and buffered by the super capacitor, and then smoothly charges the electric energy storage battery; Wind speed - rotation speed synchronous detection, ADC reads the wind speed measuring instrument voltage as U adc , the wind speed is calculated as: V wind = 0.027 x U adc (5) The Hall sensor captures the magnetic pole frequency of the motor as f, and obtains the motor speed as ω; TSR real-time calculation: In the formula, R is the radius of the wind blade; The tip speed ratio calculation is related to the load regulation, the MOS tube PWM regulation, and the target TSR (the best efficiency point of the vertical axis fan): λ opt = 3.5 (7) PWM duty cycle adjustment amount: ΔD = K P_tsr • (λ opt - λ) + K i_tsr • ∑(λ opt - λ) (8) In the formula, K P_tsr and K i_tsr are adjustment parameters, the electromagnetic load of the generator is changed by adjusting the on-off ratio of the MOS tube, so that the tip speed ratio λ is in the range of [3.2, 3.8]; The main controller is also configured with a high wind protection strategy: when the wind speed measuring instrument data exceeds the set threshold, the controller will ignore the tracking instruction, and during operation, the main controller continuously monitors the wind speed; If the wind speed exceeds 15 m / s, the wind speed is too large at this time, and the device is immediately interrupted to track light, the main controller instructs the horizontal rotating motor and the vertical rotating motor to start, so that the solar panel is rotated to be parallel to the wind direction, until the wind speed decreases, the tracking motor group is preferentially controlled to adjust the solar panel to an angle parallel to the wind direction, so as to minimize the wind resistance and protect the safety of the equipment.

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