Small wind power generation integrated control system

Abstract

The invention discloses a small wind power generation integrated control system, which comprises a detection system, a control system and an execution system, and is characterized in that the detection system comprises a UI terminal interface, a wind speed sensor and a frequency converter; the control system comprises a single-chip microcomputer system. The single-chip microcomputer system comprises a real-time display module and a manual control module. The execution system comprises an electric driving module, a yaw control module and a variable pitch control module; the system sends out a control instruction through the UI terminal interface, and the instruction is received by the control system, is received through the single-chip microcomputer system and sends an electric signal to the execution system. The execution system controls motor driving according to the received electric signals so as to change the state of the wind turbine, and then the sensor transmits various parameters of the wind turbine to a UI terminal interface through single-chip microcomputer serial port communication. According to the system, closed-loop control of the wind turbine and real-time monitoring of the system state can be achieved, and the stability and accuracy of the system are improved.

Description

Technical Field

[0001] This invention relates to the field of small wind power generation technology, specifically an integrated control system for small wind power generation. Background Technology

[0002] Existing small-scale wind power systems used in wind tunnel experiments suffer from problems such as low integration, low control efficiency, and limited real-time monitoring and response capabilities. This leads to reduced experimental efficiency, compromised data accuracy, increased experimental safety risks, resource waste, and limited technological development. These issues restrict further research and development of wind power technology in wind tunnel experiments, hindering technological progress and innovation. Summary of the Invention

[0003] This invention proposes a small-scale integrated control system for wind power generation, which integrates wind tunnel wind speed control and active control of wind turbine yaw and pitch through a user interface terminal and a microcontroller system to achieve real-time detection and closed-loop control of the wind turbine's status in the wind tunnel. This significantly reduces the cost of wind turbine-related experiments, thereby promoting the research and development of wind power generation technology.

[0004] The present invention achieves the above-mentioned technical objectives through the following technical means:

[0005] An integrated control system for small wind power generation includes a detection system, a control system, and an execution system. The detection system includes a user interface (UI), a wind speed sensor, and a frequency converter. The control system includes a microcontroller system, which comprises a real-time display module and a manual control module. The execution system includes an electric drive module, a yaw control module, and a pitch control module. The microcontroller system receives parameters from the wind speed sensor in real-time via serial communication and feeds them back to the UI. The wind speed sensor, frequency converter, and UI are used to receive and detect the information fed back by the microcontroller system via serial communication and display it on the UI. The UI can also issue commands to the microcontroller system to control the wind speed and the yaw and pitch states of the wind turbine.

[0006] Furthermore, the wind speed sensor and the frequency converter communicate via serial port and interact through the UI terminal interface.

[0007] Furthermore, the real-time display module is an LED screen directly connected to the microcontroller system.

[0008] Furthermore, the manual control module consists of a knob and a toggle switch, and is connected to the wind turbine via a drive.

[0009] Furthermore, the motor drive module is used to receive signals from the microcontroller system and convert them into electrical signals to control the wind turbine.

[0010] Furthermore, the yaw control module and the pitch control module are composed of mechanical structures inside the wind turbine.

[0011] By employing the above technical solutions, the beneficial effects of the present invention are as follows:

[0012] This invention integrates the control of wind turbines and wind speeds in wind tunnel experiments. The UI terminal interface receives feedback from wind speed and rotational speed sensors and wind turbine status, and can directly issue control commands and reprocess data through the UI terminal interface, without being restricted to the data fed back by the sensors. Through communication between various systems, simultaneous control of wind speed and wind turbine yaw and pitch angles and closed-loop control of the entire integrated system can be achieved, increasing the diversity of feasible experiments. Attached Figure Description

[0013] The above is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0014] Figure 1 This is a schematic diagram of the composition of the integrated wind power generation control system of the present invention. Detailed Implementation

[0015] The system requires integration of three systems: detection, control, and execution. A key aspect is the communication between the UI terminal, various sensors, and the microcontroller—the connection between these three systems. The UI terminal sends input signals (control commands) to the microcontroller. The microcontroller, through its internal programming, processes these commands into electrical signals that the motor drive module can receive. The motor drive module receives these signals and controls the yaw and pitch control modules on the wind turbine. Finally, the UI terminal updates the wind turbine status and initiates the next round of control. This achieves closed-loop control and real-time display functionality.

[0016] Please see Figure 1 As shown, a small-scale integrated wind power generation control system according to this embodiment includes:

[0017] The detection system includes a user interface (UI) and various sensors for detecting wind turbine speed, temperature, humidity, and wind speed. These sensors detect the wind turbine's status and process the signals via a microcontroller, feeding the data back to the UI. The UI displays the detected data in real-time and allows users to input control commands through the interface program, which are then sent to the control system.

[0018] The control system includes a core component—a microcontroller—a real-time display module, and a manual control module. The real-time display module is an LED screen connected to the microcontroller, receiving data such as pitch angle, yaw angle, speed, and power from the wind turbine during processing and displaying it on the screen in real time. The manual control module consists of a knob and a lever. Moving the lever up and down switches to manual control; initially, the knob controls the pitch angle, and pressing it switches to controlling the yaw angle. The microcontroller receives commands from the UI terminal, processes them through its internal program, and transmits them to the motor drive module, while also controlling all modules connected to the microcontroller.

[0019] The execution system includes a motor drive module and the yaw control module and pitch control module it controls. The motor drive module comprises a drive module connected to a microcontroller and a stepper motor inside the wind turbine. The drive module receives signals from the microcontroller, processes them into electrical signals, and transmits them to the stepper motor inside the wind turbine to control its movement. The yaw and pitch control module consists of a mechanical structure inside the wind turbine connected to the stepper motor. This mechanical structure can change the pitch angle and yaw angle of the wind turbine through the drive of the stepper motor.

[0020] Specifically, the UI terminal interface is written using Python code in Qt. The interface integrates the detection values ​​of existing sensors and calculates relevant physical quantities such as tip speed ratio and power through the code.

[0021] Specifically, communication between the UI terminal interface and the microcontroller can be achieved by issuing control commands directly from the UI terminal interface, which are then processed by the microcontroller program to control the wind turbine.

[0022] Specifically, the wind speed sensor and the frequency converter communicate via serial port and are integrated into the user interface. This means that the wind speed value fed back from the wind speed sensor to the UI can be changed by adjusting the frequency of the frequency converter, thereby altering the fan speed.

[0023] The wind power generation integrated control system of this invention mainly consists of a wind speed sensor, a rotational speed sensor, a temperature and humidity sensor, a frequency converter, a UI terminal interface, a microcontroller system, a motor drive, and a yaw and pitch control module.

[0024] An anemometer sensor acquires the wind speed in the wind tunnel, a speed sensor acquires the wind turbine speed, and a temperature and humidity sensor acquires the current air temperature and humidity. The anemometer and the frequency converter communicate via a serial port, meaning the frequency converter can control the wind tunnel fan speed to change the wind speed.

[0025] The user interface (UI) receives signals from various sensors via serial communication and displays them on the screen. Data processing programs extract and process these signals to obtain parameters such as tip speed ratio and power. Simultaneously, control commands can be input into the UI and transmitted to the microcontroller system via serial port.

[0026] The microcontroller system consists of an ESP32 microcontroller and connected real-time display and manual control modules. The program burned into the microcontroller can recognize control commands from the UI terminal interface and convert them into signals to control the movement of the motor drive module, which are then sent to the motor drive module.

[0027] The manual control module uses a lever and a knob to manually control the wind turbine. Moving the lever up or down switches the microcontroller control program between two programs: manual control and communication control. In manual control mode, the knob controls the stepper motor within the wind turbine's drive module, which in turn controls the internal mechanical structure to control the pitch and yaw angles. Moving the lever switches to manual control; the knob controls the pitch angle (0-90°), and pressing the knob controls the yaw angle (-90-90°).

[0028] The yaw and pitch control module consists of a mechanical structure connected to a stepper motor, which can control the yaw and pitch angles of the wind turbine by driving the stepper motor.

[0029] After the wind turbine's status changes, various sensors transmit the wind turbine parameters to the UI terminal interface via serial communication and display them in real time for the next round of control.

[0030] The system issues control commands through a user interface (UI). These commands are received by the control system, then received by the microcontroller system and sent as electrical signals to the execution system. The execution system controls the motor drive to change the wind turbine's state based on the received electrical signals. Subsequently, sensors transmit various wind turbine parameters to the UI via the microcontroller's serial communication. This system enables closed-loop control of the wind turbine and real-time monitoring of the system status, improving system stability and accuracy, and making a significant contribution to research on small wind turbines.

Claims

1. A small-scale wind power integrated control system, characterized by comprising a detection system, a control system, and an execution system, wherein... The detection system includes a UI terminal interface, a wind speed sensor, and a frequency converter. The control system includes a microcontroller system, which includes a real-time display module and a manual control module. The execution system includes an electric drive module, a yaw control module, and a pitch control module; The microcontroller system is used to receive parameters from the wind speed sensor in real time via serial communication and feed them back to the UI terminal interface. The wind speed sensor, frequency converter, and UI terminal interface are used to receive and detect the information fed back by the serial communication of the microcontroller system in real time and display it on the UI terminal interface. The UI terminal interface can also issue commands to the microcontroller system to control the wind speed and the yaw and pitch states of the wind turbine.

2. The integrated control system for small-scale wind power generation according to claim 1, characterized in that: The wind speed sensor and the frequency converter communicate via serial port and interact through the UI terminal interface.

3. The integrated control system for small-scale wind power generation according to claim 1, characterized in that: The real-time display module is an LED screen that is directly connected to the microcontroller system.

4. The integrated control system for small-scale wind power generation according to claim 1, characterized in that: The manual control module consists of a knob and a toggle switch, and is connected to the wind turbine via a drive.

5. The integrated control system for small-scale wind power generation according to claim 1, characterized in that: The motor drive module is used to receive signals from the microcontroller system and convert them into electrical signals to control the wind turbine.

6. The integrated control system for small-scale wind power generation according to claim 1, characterized in that: The yaw control module and the pitch control module are composed of mechanical structures inside the wind turbine.

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