Novel wind generating set energy compensation device
By introducing compensation devices and control systems into the wind turbine set, using components such as gearbox and frequency converter to mesh gears or start compensation wheels when the wind speed is insufficient, the problem of low power generation efficiency of wind turbines when the wind speed is insufficient is solved, and the wind turbine is realized High-efficiency power generation under various wind speed conditions significantly improves power generation efficiency.
Patent Information
- Application Number
- CN202420848855.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-23
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-04-23
AI Technical Summary
Existing wind turbines have low power generation efficiency in areas with insufficient wind speed or unstable wind speeds, and cannot effectively utilize wind energy under breeze and windless conditions, resulting in large differences in power generation.
A new type of energy compensation device for wind turbines is designed, including generator sets and compensation devices. Through gearboxes, frequency converters, converters, battery packs and compensation wind wheels, the control system is used to detect wind speed, and in the absence of wind and mild wind Or when the wind speed is insufficient, mesh the gear or start the compensation wind wheel to jointly undertake the power generation task to ensure that the generator set is always in operation.
It improves the power generation efficiency of wind turbines in areas with poor wind resources or unstable wind resources, ensures that the generator set can effectively generate power under various wind speed conditions, significantly improving the power generation efficiency, which is practical and economical.
Smart Images
Figure CN222262395U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of wind power generation equipment, in particular to a novel energy compensation device for a wind power generator set. Background Art
[0002] Wind farm operation data analysis refers to the process of collecting, sorting, analyzing and utilizing various data generated during the operation of a wind farm to obtain valuable information for evaluating, improving and optimizing the operation status of a wind farm. Through the analysis of wind farm operation data, it can be seen that the power generation effect of a wind farm is closely related to wind speed. Power generation is an important indicator for evaluating the operation status of a wind farm. Various parameters such as temperature, humidity, voltage, current, etc. need to be monitored and controlled in real time during the operation of a wind farm. Through the analysis of monitoring and control data, the operation status of a wind farm can be understood. Existing wind turbines are electrical equipment that converts wind energy into mechanical energy, which drives the rotor to rotate and ultimately outputs alternating current. Wind turbines generally have wind rotors, generators, speed increasers, devices, direction finders (tail wings), towers, control units, wind measuring devices, etc. The working principle of a wind turbine is relatively simple. The wind rotor rotates under the action of wind power, converting the kinetic energy of the wind into the mechanical energy of the wind rotor shaft. The generator generates electricity while rotating under the drive of the wind rotor shaft, with wind power as the working medium. Therefore, there are the following defects: 1. The working conditions of existing wind turbines must reach a certain wind speed; 2. The application areas are different. For example, in plain areas, the wind resources in winter and summer are very different, and the power generation is also very different. Summary of the invention
[0003] In order to solve the above problems, the utility model provides a novel energy compensation device for a wind turbine generator set, which has a reasonable structure and solves the above problems.
[0004] The technical scheme of the utility model is: to provide a novel energy compensation device for wind power generator set, including a generator set and a compensation device, the generator set including a control system, a generator, a main relay, a main switch, a fuse, a transformer, a power grid, a speed increaser, a wind wheel, a rectifier, and a thyristor, the rotational motion of the blades on the wind wheel is transmitted to the generator through the speed increaser, the rotation of the rotor inside the generator generates electromagnetic induction, converting mechanical energy into electrical energy, the control system is connected with the generator, the main relay, the main switch, the fuse, and the thyristor through a line, the electrical energy generated by the generator passes through the control system, the main relay, the main switch, the fuse, the transformer, the rectifier, and the thyristor The power is processed and transmitted to the power grid, the generator set is connected to the compensation device, the compensation device includes a device control unit, a gear box, a motor, a frequency converter, a converter, a battery pack, a charging unit, and a compensation wind wheel. The compensation wind wheel is connected to the control system through a line, the control system is connected to the device control unit through a line, the generator is connected to the charging unit through a line, the charging unit is connected to the battery pack through a line, the battery pack is connected to the converter through a line, the converter is connected to the frequency converter through a line, the device control unit is connected to the frequency converter through a line, the frequency converter is connected to the motor through a line, and the speed increaser, the device control unit, and the motor are respectively connected to the gear box through a line;
[0005] Optionally, the compensation device is different when used under conditions of no wind, light wind, or insufficient wind speed.
[0006] Optionally, when the control system detects that the wind speed is insufficient, that is, the wind speed driven by the wind wheel blades is 3-5 meters per second and the power generation conditions cannot be met, the gears in the gearbox engage on the low-speed side and participate in the operation, and the wind wheel and the compensation device jointly bear the energy for wind turbine power generation. The control system gives a start signal to the device control unit, and the device control unit gives the inverter an output ratio. The inverter outputs the corresponding frequency according to the output ratio, the gears of the gearbox engage, and the device control unit outputs power generation.
[0007] Optionally, when the control system detection unit checks that there is no wind, the wind rotor blades are not driven by wind energy, and the compensation device is 100% put into operation. The gears in the gearbox engage and run on the low-speed side. The control system sends a start signal to the device control unit and disengages the wind rotor device. The compensation wind rotor transmits the wind energy forward through the control system through the line, and the device control unit sends a start signal to the frequency converter. The frequency converter works according to the instructions of the device control unit and reaches the generator.
[0008] Optionally, when the control system detection unit checks that it is a breeze, the wind energy of the wind wheel blades is driven in the range of 10-50%, the gears in the gear box engage and participate in the operation on the low-speed side, the wind wheel and the compensation device jointly bear the energy for wind turbine power generation, the control system gives a working signal to the device control unit, the charging unit adds current to the device battery pack, the battery pack provides current to the converter, the converter provides current to the frequency converter, the frequency converter adds current to the motor, and the device control unit starts working.
[0009] Optionally, the charging unit, battery pack and control system working power supply share a single branch.
[0010] Compared with the prior art, the beneficial effects of the utility model are: reasonable structure, auxiliary power generation energy, used in areas with poor or unstable wind resources, improving power generation efficiency, laying the foundation for optimizing wind turbine performance, greatly improving power generation efficiency, and having strong practicality and economy. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] The utility model is further described below according to the figure:
[0012] Figure 1 It is a structural diagram of the utility model;
[0013] Figure 1 As shown in: control system 8, generator 9, main relay 10, main switch 11, fuse 12, transformer 13, power grid 14, speed increaser 15, wind wheel 16, rectifier 18, thyristor 19, device control unit 1, gearbox 2, motor 3, frequency converter 4, converter 5, battery pack 6, charging unit 7, compensation wind wheel 17. DETAILED DESCRIPTION
[0014] The present invention is further described in detail below in conjunction with the drawings. It should be noted that the drawings are only used to explain the present invention and are schematic illustrations of embodiments of the present invention, and cannot be understood as limiting the present invention.
[0015] In the description of the present invention, it should be noted that the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, or a laser welding connection; it can be directly connected, or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0016] like Figure 1As shown, the novel wind power generator energy compensation device includes a generator set and a compensation device. The generator set includes a control system 8, a generator 9, a main relay 10, a main switch 11, a fuse 12, a transformer 13, a power grid 14, a speed increaser 15, a wind wheel 16, a direction regulator 18, and a thyristor 19. The rotational motion of the blades on the wind wheel 16 is transmitted to the generator 9 through the speed increaser 15. Inside the generator, the rotation of the rotor generates electromagnetic induction, which converts mechanical energy into electrical energy. The control system 8 is connected with the generator 9, the main relay 10, the main switch 11, the fuse 12, and the thyristor 19 through a line. The electrical energy generated by the generator 9 passes through the control system 8, the main relay 10, the main switch 11, the fuse 12, the transformer 13, the direction regulator 18, and the thyristor 19. The compensation device includes a device control unit 1, a gear box 2, a motor 3, a frequency converter 4, a converter 5, a battery pack 6, a charging unit 7, and a compensation wind wheel 17. The compensation wind wheel 17 is connected to the control system 8 through a line, the control system 8 is connected to the device control unit 1 through a line, the generator 9 is connected to the charging unit 7 through a line, the charging unit 7 is connected to the battery pack 6 through a line, the battery pack 6 is connected to the converter 5 through a line, the converter 5 is connected to the frequency converter 4 through a line, the device control unit 1 is connected to the frequency converter 4 through a line, the frequency converter 4 is connected to the motor 3 through a line, and the speed increaser 15, the device control unit 1, and the motor 3 are respectively connected to the gear box 2 through a line;
[0017] The compensation device is used differently when used under conditions of no wind, light wind, or insufficient wind speed.
[0018] When the control system 8 detects that the wind speed is insufficient, that is, the wind speed driven by the wind wheel 16 blades is 3-5 meters per second and the power generation conditions cannot be met, the gears in the gear box 2 engage in operation on the low-speed side, and the wind wheel 16 and the compensation device jointly bear the energy for wind turbine power generation. The control system 8 gives a start signal to the device control unit 1, and the device control unit 1 gives an output ratio to the frequency converter 4. The frequency converter 4 outputs the corresponding frequency according to the output ratio, the gears of the gear box 2 engage, and the device control unit 1 outputs power for generation.
[0019] When the detection unit of the control system 8 checks that there is no wind, the wind wheel 16 blades are not driven by wind energy, and the compensation device is 100% put into operation. The gears in the gear box 2 are meshed and run on the low-speed side. The control system 8 gives a start signal to the device control unit 1 and disengages the wind wheel 16 device. The compensation wind wheel 17 transmits the wind energy forward through the control system 8 through the line. The device control unit 1 gives a start signal to the frequency converter 4, and the frequency converter 4 works according to the instructions of the device control unit 1 and reaches the generator 9.
[0020] When the detection unit of the control system 8 checks that it is a breeze, the wind energy of the wind wheel 16 blades is driven in the range of 10-50%, and the gears in the gear box 2 are engaged on the low-speed side to participate in the operation. The wind wheel 16 and the compensation device jointly bear the energy for wind turbine power generation. The control system 8 gives a working signal to the device control unit 1, the charging unit 7 adds current to the device battery pack 6, the battery pack 6 provides current to the converter, the converter 5 gives current to the frequency converter 4, the frequency converter 4 adds current to the motor 3, and the device control unit 1 starts working.
[0021] The charging unit 7, the battery pack 6 and the control system 8 share a common working power supply, forming a single branch.
[0022] Example
[0023] The working wind speed of the wind wheel 16 is 3-5 meters. When the control system 8 detects that the wind speed is insufficient and cannot meet the power generation conditions, the control system 8 gives a start signal to the device control unit 1 and gives an output ratio. The device control unit 1 gives the output ratio to the frequency converter 4. The frequency converter 4 outputs the corresponding frequency (speed) according to the output ratio, the gear box 2 engages, and the device control unit 1 outputs power to generate electricity.
[0024] When the detection unit of the control system 8 checks that there is no wind, a start signal is given to the device control unit 1, and the wind wheel 16 device is disengaged. The device control unit 1 gives a start signal to the inverter 4, and the inverter 4 works according to the instructions of the device control unit 1 and meets the necessary conditions for the generator 9 to generate electricity.
[0025] The control system 8 sends a working signal to the device charging unit 1, the charging unit 7 adds current to the device battery pack 6, the battery pack 6 provides current to the converter (DC-AC), the converter 5 provides current to the frequency converter 4, the frequency converter 4 is powered and works, adds current to the motor 3, and the device charging unit 1 starts working.
[0026] When used in a breeze, the output of the wind wheel 16 blades is insufficient. When the output is 10% load, the device participates in the operation and actively bears the remaining load. The control system 8 is connected to the device control unit 1 through the line and starts it with air. The generator 9 is connected to the charging unit 7 through the line and provides assistance. The charging unit 7 provides assistance to the battery pack 6, the converter 5, the frequency converter 4, the motor 3, and the gear box 2 in sequence through the line and starts them. The speed increaser 15, the device control unit 1, and the motor 3 start the gear box 2 through the line respectively, the compensation wind wheel 17 rotates and drives the main shaft of the generator 9 to run and generate electricity through the control system 8, so that the power generation reaches effective power.
[0027] When used in a windless environment, the wind wheel 16 stops running, the device runs at 100% load, the control system 8 is connected to the device control unit 1 through the line and starts it with air, the generator 9 is connected to the charging unit 7 through the line and provides power assistance, the charging unit 7 provides power assistance to the battery pack 6, the converter 5, the frequency converter 4, the motor 3, and the gear box 2 in sequence through the line and starts them, the speed increaser 15, the device control unit 1, and the motor 3 start the gear box 2 through the line respectively, the compensation wind wheel 17 rotates and drives the main shaft of the generator 9 to generate electricity through the control system 8, so that the power generation reaches the effective power.
[0028] When the wind power is insufficient, when the output is 80% of the load, it actively bears the remaining 20% of the load, the control system 8 is connected to the device control unit 1 through the line and starts it, the generator 9 is connected to the charging unit 7 through the line and provides assistance, the charging unit 7 provides assistance to the battery pack 6, the converter 5, the frequency converter 4, the motor 3, and the gear box 2 through the line in sequence and starts them, the speed increaser 15, the device control unit 1, and the motor 3 start the gear box 2 through the line respectively, the compensation wind wheel 17 rotates and drives the main shaft of the generator 9 to generate electricity through the control system 8, so that the power generation reaches the effective power.
[0029] Participate in power generation in light wind, work together with the wind wheel 16, and meet the necessary conditions for the generator 9 to work;
[0030] Under windless conditions, the wind wheel 16 is disconnected and the generator 9 is driven by itself to generate electricity.
[0031] The utility model has a reasonable structure and is an auxiliary power generation device. It is used in areas with poor or unstable wind resources to improve power generation efficiency, lays a foundation for optimizing wind turbine performance, greatly improves power generation efficiency, and has strong practicality and economy.
[0032] The above is an embodiment of the utility model and is not intended to limit the present invention. For those skilled in the art, the utility model may have various improvements and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the scope of the claims of the utility model.
Claims
1. A novel wind power generator energy compensation device, comprising a generator set and a compensation device, wherein the generator set comprises a control system (8), a generator (9), a main relay (10), a main switch (11), a fuse (12), a transformer (13), a power grid (14), a speed increaser (15), a wind wheel (16), a rectifier (18), and a thyristor (19), wherein the rotational motion of the blades on the wind wheel (16) is transmitted to the generator (9) through the speed increaser (15), wherein the rotation of the rotor inside the generator generates electromagnetic induction, converting mechanical energy into electrical energy, wherein the control system (8) is connected to the generator (9), the main relay (10), the main switch (11), the fuse (12), and the thyristor (19) through a line, wherein the electrical energy generated by the generator (9) is processed by the control system (8), the main relay (10), the main switch (11), the fuse (12), the transformer (13), the rectifier (18), and the thyristor (19) and transmitted to the power grid (14), wherein the generator set is connected to the compensation device, wherein the characteristics are as follows: The compensation device comprises a device control unit (1), a gear box (2), a motor (3), a frequency converter (4), a converter (5), a battery pack (6), a charging unit (7), and a compensation wind wheel (17). The compensation wind wheel (17) is connected to a control system (8) via a line, the control system (8) is connected to the device control unit (1) via a line, the generator (9) is connected to the charging unit (7) via a line, the charging unit (7) is connected to the battery pack (6) via a line, the battery pack (6) is connected to the converter (5) via a line, the converter (5) is connected to the frequency converter (4) via a line, the device control unit (1) is connected to the frequency converter (4) via a line, the frequency converter (4) is connected to the motor (3) via a line, and the speed increaser (15), the device control unit (1), and the motor (3) are respectively connected to the gear box (2) via a line.
2. The novel wind turbine generator energy compensation device according to claim 1 is characterized in that: The compensation device is used differently when used under conditions of no wind, light wind, or insufficient wind speed.
3. The novel wind turbine generator energy compensation device according to any one of claims 1 and 2 is characterized in that: When the control system (8) detects that the wind speed is insufficient, that is, the wind speed driven by the wind blades of the wind wheel (16) is 3-5 meters per second and cannot meet the power generation conditions, the gears in the gear box (2) mesh on the low-speed side and participate in the operation, and the wind wheel (16) and the compensation device jointly bear the energy for wind turbine power generation. The control system (8) gives a start signal to the device control unit (1), and the device control unit (1) gives an output ratio to the frequency converter (4). The frequency converter (4) outputs a corresponding frequency according to the output ratio, the gears of the gear box (2) mesh, and the device control unit (1) generates power for power generation.
4. The novel wind turbine generator energy compensation device according to any one of claims 1 and 2 is characterized in that: When the detection unit of the control system (8) detects that there is no wind, the wind wheel (16) blades are not driven by wind energy, and the compensation device is 100% put into operation. The gears inside the gear box (2) are meshed and run at the low speed side. The control system (8) sends a start signal to the device control unit (1) and disengages the wind wheel (16) device. The compensation wind wheel (17) transmits wind energy forward through the control system (8) through the line. The device control unit (1) sends a start signal to the frequency converter (4), and the frequency converter (4) works according to the instruction of the device control unit (1) and reaches the generator (9).
5. The novel wind turbine generator energy compensation device according to any one of claims 1 and 2, characterized in that: When the detection unit of the control system (8) detects that there is a breeze, the wind energy of the wind wheel (16) blades is driven within the range of 10-50%, the gears in the gear box (2) are meshed on the low-speed side and participate in the operation, the wind wheel (16) and the compensation device jointly bear the energy for generating electricity from the wind turbine, the control system (8) gives a working signal to the device control unit (1), the charging unit (7) adds current to the device battery pack (6), the battery pack (6) provides current to the converter, the converter (5) provides current to the frequency converter (4), the frequency converter (4) adds current to the motor (3), and the device control unit (1) starts to work.
6. The novel wind turbine generator energy compensation device according to claim 1 is characterized in that: The charging unit (7), the battery pack (6) and the control system (8) share a working power supply, forming a single branch.