Control system of wind driven generator

Abstract

The utility model discloses a control system of a wind driven generator, which relates to the technical field of electric control and comprises a data acquisition module, a processor and an interaction module, the data acquisition module, the processor and the interaction module are connected in sequence; the data acquisition module is used for acquiring voltage, current, frequency, power and temperature of the wind driven generator and transmitting data to the processor; the processor is used for receiving the data transmitted by the data acquisition module and determining whether abnormity occurs or not according to a preset threshold value; if the motor is abnormal, early warning is carried out at the first time, a worker is reminded, and voltage regulation, frequency regulation and power control are carried out on the motor; the interaction module has a function of manually setting processing parameters for the processor. According to the invention, intelligent monitoring and control of the motor can be realized, the stability and reliability of the system are improved, and the working efficiency and safety of operators are also improved.

Description

Technical Field

[0001] The present invention relates to the field of electric control technology, and more particularly to a control system for a wind turbine generator. Background Art

[0002] At present, the kinetic energy of the wind is converted into mechanical kinetic energy, and then the mechanical energy is converted into electric kinetic energy, which is wind power generation. The principle of wind power generation is to use the wind to drive the rotation of the windmill blades, and then increase the rotation speed through a speed increaser to promote the generator to generate electricity. According to windmill technology, a breeze speed of about three meters per second (the degree of a gentle breeze) can start generating electricity. Wind power generation is forming a boom in the world because wind power generation does not require the use of fuel and does not produce radiation or air pollution. The wind power in emerging markets has developed rapidly. Against the background of national policy support and tight energy supply, the wind power in China, especially the wind power equipment manufacturing industry, has also risen rapidly and has become the most active place for global wind power.

[0003] However, in the field of wind turbine generators, there is no mature technology and equipment to ensure the stability of the generator. Especially in the aspect of automatic control of the generator, there are still many technical problems.

[0004] Therefore, how to use an intelligent control system to monitor and adjust the operating state of the generator to achieve efficient, stable and reliable power generation is an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the present invention provides a control system for a wind turbine generator to solve the problems in the background art.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] A control system for a wind turbine generator includes: a data acquisition module, a processor, and an interaction module; the data acquisition module, the processor, and the interaction module are connected in sequence;

[0008] The data acquisition module collects the voltage, current, frequency, power, and temperature of the wind turbine generator and transmits the data to the processor;

[0009] The processor receives the data transmitted by the data acquisition module and determines whether an abnormality occurs according to a preset threshold; if an abnormality occurs, it gives an early warning in the first time to remind the staff and adjusts the voltage, frequency, and power control of the motor;

[0010] The interaction module has an input device, a display device, and a communication unit, wherein the communication unit is connected to the processor;

[0011] The interaction module has the function of manually setting processing parameters for the processor.

[0012] Optionally, the data acquisition module includes a plurality of voltage sensors, current sensors, frequency sensors, power sensors, and temperature sensors; the voltage sensors, current sensors, frequency sensors, power sensors, and temperature sensors respectively acquire the voltage, current, frequency, power, and temperature of the wind turbine.

[0013] Optionally, the processor includes an input module, a data parsing module, a data anomaly module, a data storage module, a warning module, an adjustment module, a protection module, and an output module;

[0014] The input module is connected to the data parsing module, the data parsing module is respectively connected to the data anomaly module and the data storage module, the data anomaly module is connected to the warning module, the warning module is connected to the adjustment module, the adjustment module is connected to the protection module, and the protection module and the data storage module are respectively connected to the output module.

[0015] Optionally, the input module includes a signal conditioning circuit and an analog-to-digital conversion circuit. The input end of the signal conditioning circuit is connected to the data acquisition module, the output end of the signal conditioning circuit is connected to the input end of the analog-to-digital conversion circuit, and the output end of the analog-to-digital conversion circuit is connected to the data parsing module.

[0016] Optionally, the input device is a keyboard; the display device is a display.

[0017] Optionally, it further includes:

[0018] An electrical cabinet, at least the processor and the interaction module are arranged in the electrical cabinet;

[0019] The electrical cabinet has an opening for the input device and the display device to be exposed, or,

[0020] The electrical cabinet has a connection port for the input device and the display device to be externally connected.

[0021] Optionally, the processor further includes a data recording and storage module for recording and storing the initial data, warning information, and adjusted data of the wind turbine for subsequent reference.

[0022] As can be seen from the above technical solutions, compared with the prior art, the present invention discloses a control system for a wind turbine, including: a data acquisition module, a processor, and an interaction module; the data acquisition module, the processor, and the interaction module are connected in sequence; the data acquisition module collects the voltage, current, frequency, power, and temperature of the wind turbine and transmits the data to the processor; the processor receives the data transmitted by the data acquisition module and determines whether an abnormality occurs according to a preset threshold; if an abnormality occurs, a warning is given immediately to remind the staff, and the voltage of the motor is adjusted, the frequency is adjusted, and the power is controlled; the interaction module has an input device, a display device, and a communication unit, wherein the communication unit is connected to the processor; the interaction module has the function of manually setting processing parameters for the processor. The present invention can realize intelligent monitoring and control of the motor, improve the stability and reliability of the system, and at the same time improve the work efficiency and safety of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to the provided drawings.

[0024] Figure 1 It is a schematic structural diagram of the system provided by the present invention;

[0025] Figure 2 It is a perspective view of the electrical cabinet provided by the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] An embodiment of the present invention discloses a control system for a wind turbine, as Figure 1 shown, including: a data acquisition module, a processor, and an interaction module; the data acquisition module, the processor, and the interaction module are connected in sequence;

[0028] The data acquisition module collects the voltage, current, frequency, power, and temperature of the wind turbine and transmits the data to the processor;

[0029] A processor that receives data transmitted by a data acquisition module and determines whether an abnormality occurs according to a preset threshold; if an abnormality occurs, it gives an early warning immediately, alerts the staff, and adjusts the voltage, frequency, and power of the motor.

[0030] An interaction module having an input device, a display device, and a communication unit, where the communication unit is connected to the processor.

[0031] The interaction module has the function of manually setting processing parameters for the processor.

[0032] In a specific embodiment, the data acquisition module includes multiple voltage sensors, current sensors, frequency sensors, power sensors, and temperature sensors; the voltage sensor, current sensor, frequency sensor, power sensor, and temperature sensor respectively collect the voltage, current, frequency, power, and temperature of the wind turbine.

[0033] Specifically, the voltage sensor can be one or more of ZMPT101B, ACS712, ZMPT107, and INA219;

[0034] The current sensor can be one or more of ACS758, ACS712, INA219, and LTSR15;

[0035] The frequency sensor can be one or more of HAL3625 and FC361;

[0036] The power sensor can be one or more of INA219, INA226, and ACS712;

[0037] The temperature sensor can be one or more of DS18B20, LM35, DHT22, and TMP36.

[0038] In a specific embodiment, the processor includes an input module, a data parsing module, a data abnormality module, a data storage module, an early warning module, an adjustment module, a protection module, and an output module;

[0039] The input module is connected to the data parsing module, the data parsing module is respectively connected to the data abnormality module and the data storage module, the data abnormality module is connected to the early warning module, the early warning module is connected to the adjustment module, the adjustment module is connected to the protection module, and the protection module and the data storage module are respectively connected to the output module.

[0040] After the data acquisition module transmits data to the processor, the input module receives the data and transmits it to the data parsing module. The data parsing module determines whether the data exceeds a preset threshold. If it does not exceed the preset threshold, the data is only sent to the data storage module for storage. If it exceeds the preset threshold, an abnormal signal corresponding to the data is sent to the data anomaly module, and at the same time the data is sent to the data storage module for storage. The data anomaly module receives the abnormal signal and generates a warning signal, which is sent to the warning module. When the warning module receives the warning signal transmitted by the data anomaly module, it gives a warning immediately to remind the staff and sends an adjustment signal to the adjustment module. The adjustment module receives the adjustment signal and performs voltage adjustment, frequency adjustment, and power control on the motor. After the adjustment, the adjusted data is sent to the protection module to provide overcurrent protection, overvoltage protection, underfrequency protection, and overtemperature protection for the motor. Finally, the data is transmitted to the transmission module to prevent the motor from malfunctioning and enable immediate adjustment.

[0041] Specifically, a single-chip microcomputer can be used as the processor, and preset thresholds corresponding to voltage, current, frequency, power, and temperature are respectively set in the single-chip microcomputer. When the data parsing module makes a data anomaly judgment, the above-mentioned preset thresholds are called. Specifically: when the collected current exceeds the current preset threshold, it is judged as data anomaly; when the collected voltage exceeds the voltage preset threshold, it is judged as data anomaly; when the collected frequency exceeds the frequency preset threshold, it is judged as data anomaly; when the collected temperature exceeds the temperature preset threshold, it is judged as data anomaly.

[0042] In a specific embodiment, the input module includes a signal conditioning circuit and an analog-to-digital conversion circuit. The input end of the signal conditioning circuit is connected to the data acquisition module, the output end of the signal conditioning circuit is connected to the input end of the analog-to-digital conversion circuit, and the output end of the analog-to-digital conversion circuit is connected to the data parsing module.

[0043] The collected signals need to be converted into signals that can be used by the processor. At this time, signal conditioning and analog-to-digital conversion are required. The above-mentioned input module includes a signal conditioning circuit and an analog-to-digital conversion circuit. The signal conditioning circuit can perform functions such as signal amplification and filtering.

[0044] In a specific embodiment, the interaction module can manually input parameters to the processor for manual setting or manual control. Specifically, the interaction module has an input device, a display device, and a communication unit. Optionally, the input device can be a keyboard, and the form of the keyboard can be in various forms. The display device can be a display, such as an LCD (Liquid Crystal Display) monitor. Of course, it can also have a display circuit for the display device, such as an LCD display circuit. The communication unit in the interaction module is connected to the processor and is used to communicate with the processor, and can send the content input by the input device to the processor.

[0045] The function of the communication unit is to realize the signal transmission between the interaction module and the processor. The processor can also display the data received from the data acquisition module on the display device through the communication unit.

[0046] In a specific embodiment, as Figure 2 shown, it further includes:

[0047] An electrical cabinet, at least the processor and the interaction module are arranged in the electrical cabinet;

[0048] The electrical cabinet has an opening for the input device 4 and the display device 3 to be exposed, or,

[0049] The electrical cabinet has a connection port for the input device 4 and the display device 3 to be externally connected.

[0050] An opening is provided on the electrical cabinet for the display device 3 and the input device 4 to be exposed. Of course, it can also be a connection port for the display device 3 and the input device 4 to be externally connected. For example, a USB connection port or an HDMI connection port can be used. Of course, the electrical cabinet has interfaces for the power cord 1 and the network cable 2 to enter.

[0051] In a specific embodiment, the processor further includes a data recording and storage module, which is used to record and store the initial data, warning information, and adjusted data of the wind turbine for subsequent reference. Among them, the data recording and storage module can adopt one of a memory card, a hard disk drive (HDD), a solid state drive (SSD), and a flash memory.

[0052] In the present utility model, the data acquisition module, the processor, and the interaction module can be separate printed circuit boards, and through electrical wiring, signal acquisition, power supply, and communication are realized between different modules.

[0053] In the present specification, the various embodiments are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same or similar parts among the various embodiments, reference can be made to each other. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple. For the relevant parts, reference can be made to the description in the method section.

[0054] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A control system for a wind turbine, characterized in that: include: A data acquisition module, a processor and an interaction module; the data acquisition module, the processor and the interaction module are connected in sequence; Data acquisition module, which collects the voltage, current, frequency, power and temperature of the wind turbine and transmits the data to the processor; The processor receives the data transmitted by the data acquisition module and determines whether an abnormality occurs according to a preset threshold. If an abnormality occurs, an early warning is issued immediately to remind the staff and the voltage, frequency and power of the motor are adjusted. The interaction module comprises an input device, a display device and a communication unit, wherein the communication unit is connected to the processor; The interaction module has the function of manually setting processing parameters for the processor.

2. A control system for a wind turbine according to claim 1, characterized in that: The data acquisition module includes a plurality of voltage sensors, current sensors, frequency sensors, power sensors, and temperature sensors; the voltage sensors, current sensors, frequency sensors, power sensors, and temperature sensors respectively collect the voltage, current, frequency, power, and temperature of the wind turbine.

3. A control system for a wind turbine according to claim 1, characterized in that: The processor includes an input module, a data analysis module, a data anomaly module, a data storage module, an early warning module, a regulation module, a protection module and an output module; The input module is connected to the data analysis module, the data analysis module is respectively connected to the data anomaly module and the data storage module, the data anomaly module is connected to the early warning module, the early warning module is connected to the adjustment module, the adjustment module is connected to the protection module, and the protection module and the data storage module are respectively connected to the output module.

4. A control system for a wind turbine according to claim 3, characterized in that: The input module includes a signal conditioning circuit and an analog-to-digital conversion circuit. The input end of the signal conditioning circuit is connected to the data acquisition module, the output end of the signal conditioning circuit is connected to the input end of the analog-to-digital conversion circuit, and the output end of the analog-to-digital conversion circuit is connected to the data analysis module.

5. A control system for a wind turbine according to claim 1, characterized in that: The input device is a keyboard; the display device is a monitor.

6. A control system for a wind turbine according to claim 1, characterized in that: Also includes: An electrical cabinet, in which at least the processor and the interaction module are arranged; The electrical cabinet has an opening for exposing the input device and the display device, or, The electrical cabinet has a connection port for external connection of the input device and the display device.

7. A control system for a wind turbine according to claim 1, characterized in that: The processor also includes a data recording and storage module for recording and storing initial data, warning information and adjusted data of the wind turbine for subsequent reference.

Images