Zero-carbon wind-solar complementary device

Abstract

The utility model discloses a zero-carbon wind-solar complementary device, which relates to the technical field of new energy power generation, and comprises a protection box, a support column arranged on the protection box, a wind-solar complementary voltage self-adjusting assembly, a solar cell panel assembly, a cell panel single-shaft sun-tracking assembly and a fan assembly. According to the utility model, zero-carbon power supply and cost optimization can be realized through wind-solar complementary power generation, the commercial power consumption cost is greatly reduced, and the annual carbon reduction amount is greatly improved; according to the equipment, the BMS system monitor is matched with the electric energy output of the lithium battery, so that the voltage stabilization performance is greatly improved, and the phenomenon that the screen printing of the equipment is unstable due to voltage fluctuation is avoided; according to the equipment, through the design of the ETFE protective film, the erosion resistance of the surface of the solar cell panel is greatly improved, and the problem that the sunlight collection rate is reduced due to yellowing is avoided.

Description

Technical Field

[0001] This utility model relates to the field of new energy power generation technology, specifically a zero-carbon wind-solar hybrid device. Background Technology

[0002] As a key link in the deep processing of glass, glass screen printing requires equipment with stringent requirements for the stability and cleanliness of the power supply. Traditional glass screen printing production lines consume 15-25 kWh of electricity per hour, of which 85% depends on the municipal power grid. Coal-fired power generation accounts for more than 60% of the grid's energy structure. This power supply mode results in 65-85 tons of carbon dioxide emissions per year for a screen printing production line operating for an average of 12 hours per day, which is detrimental to environmental protection and also incurs high electricity costs.

[0003] Traditional renewable energy power generation often uses a single energy source. Single photovoltaic power generation is inefficient in cloudy or rainy weather, while independent wind power generation is blocked by workshop buildings, and the power generation drops sharply when the wind speed is below 4 meters per second. Traditional wind-solar hybrid devices often use a simple series connection mode of power generation-energy storage-power consumption, without load matching for the pulsed power consumption characteristics of screen printing equipment. This can easily lead to voltage drops when the equipment restarts due to response delays, causing control module failures. The EVA film of traditional solar panels will yellow faster due to the erosion of organic solvents in the exhaust gas of screen printing workshops, resulting in a decrease in light transmittance. Utility Model Content

[0004] This invention provides a zero-carbon wind-solar hybrid device, which has the advantages of being environmentally friendly and having the complementary benefits of wind power generation and solar power generation, in order to solve the environmental problems of existing power generation and the problem of insufficient single power supply from new energy power generation.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a zero-carbon wind-solar hybrid device, comprising a protective box and a support column mounted on the protective box, and further comprising a wind-solar hybrid voltage self-regulating component, a solar panel component, a single-axis solar tracking component for the solar panel, and a wind turbine component, wherein:

[0006] The wind-solar hybrid voltage self-regulating component is located inside the protective box, and the support column is a hollow column and is fixed to the top of the protective box by screws.

[0007] The wind-solar hybrid voltage self-regulating component includes an MPPT controller, a voltage regulator, a BMS system monitor, a bidirectional DC-DC converter, an energy storage box, an integrated inverter and controller, and a lithium battery. The MPPT controller is electrically connected to the bidirectional DC-DC converter, and the bidirectional DC-DC converter is electrically connected to the BMS system monitor.

[0008] The BMS system monitor is electrically connected to the lithium battery, which is electrically connected to the DC-DC converter. The MPPT controller is electrically connected to the energy storage box, which is electrically connected to the inverter / controller unit. The solar panel assembly includes a cadmium telluride thin-film solar panel, the surface of which is covered with an ETFE protective film. The MPPT controller is an intelligent "solar energy extractor." It tracks and locks the optimal power generation state (maximum power point) of the solar panel in the current environment in real time, and efficiently converts the acquired maximum power into a form suitable for charging the battery or supplying it to the inverter, thereby significantly improving the energy output and efficiency of the entire solar power generation system. It is an indispensable key component in modern high-performance solar systems. The BMS system monitor usually refers to the core monitoring function component or display interface in the Battery Management System (BMS). Its core function is to monitor and manage the key operating parameters and status of the battery pack (especially the lithium-ion battery pack) in real time, ensuring the safe, efficient, and reliable operation of the battery and extending its service life. Bidirectional DC-DC converters are a core technology in power electronics, breaking the limitations of traditional unidirectional converters and providing a key solution for applications requiring bidirectional energy flow, recovery, and flexible management. They play an increasingly important role in electric vehicles, renewable energy, energy storage systems, microgrids, and UPS systems, serving as a core component for achieving efficient, intelligent, and sustainable energy systems. Their core value lies in seamlessly and efficiently transferring and converting electrical energy between two DC ports on demand, based on system status.

[0009] As a preferred embodiment of this utility model, the cadmium telluride thin-film solar panel is heat-pressed to the backplate via an encapsulating film, the power output terminal of the cadmium telluride thin-film solar panel is electrically connected to an MPPT controller, and a mounting bracket is welded to one end of the backplate.

[0010] As a preferred technical solution of this utility model, the wind turbine assembly includes a low wind speed permanent magnet generator, the low wind speed permanent magnet generator is symmetrically provided with carbon fiber blades around its perimeter, and the bottom end of the low wind speed permanent magnet generator is mounted on a support column and electrically connected to an energy storage box.

[0011] As a preferred embodiment of this utility model, the single-axis solar tracking assembly of the solar panel includes a photosensitive sensor, an integrated power amplifier circuit chip, a movable frame, a rotating shaft, a main gear, a secondary gear, a servo motor, and a single-axis solar tracking bracket.

[0012] In a preferred embodiment of this invention, the photosensitive sensor and the integrated power amplifier circuit chip are both fixed to the mounting bracket with screws, and the photosensitive sensor is symmetrically arranged on both sides of the integrated power amplifier circuit chip. The photosensitive sensor is electrically connected to the integrated power amplifier circuit chip and the cadmium telluride thin-film battery board.

[0013] As a preferred technical solution of this utility model, the movable frame is fixed to the back side of the back plate by bolts, the two ends of the rotating shaft are welded to the movable frame, and the middle part passes through the top of the single-axis sun-tracking bracket and is rotatably engaged.

[0014] As a preferred embodiment of this utility model, a secondary gear is welded onto the rotating shaft, the secondary gear meshes with the main gear and rotates in cooperation, the main gear is connected to one end of a servo motor, and the servo motor is fixed to the top of the movable frame by screws.

[0015] Compared with existing technologies, this utility model provides a zero-carbon wind-solar hybrid device with the following advantages: This utility model can achieve zero-carbon power supply and cost optimization through wind-solar hybrid power generation, greatly reducing commercial electricity costs and significantly increasing annual carbon reduction; the device, through the BMS system monitor and the power output of the lithium battery, greatly improves voltage regulation performance and avoids the phenomenon of unstable screen printing caused by voltage fluctuations; the device, through the design of the ETFE protective film, greatly improves the corrosion resistance of the solar panel surface and avoids the problem of reduced solar energy collection rate caused by yellowing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a structural diagram of the wind-solar hybrid voltage self-regulating component of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the solar panel assembly of this utility model;

[0019] Figure 4 This is a structural diagram of the single-axis solar tracking module of the solar panel of this utility model;

[0020] Figure 5 This is a schematic diagram of the wind turbine assembly structure of this utility model.

[0021] In the diagram: 1. Protective box; 2. Support column; 3. Wind-solar hybrid voltage self-regulating component; 31. MPPT controller; 32. Voltage regulator; 33. BMS system monitor; 34. Bidirectional DC-DC converter; 35. Energy storage box; 36. Inverter control unit; 37. Lithium battery; 4. Solar panel assembly; 41. Cadmium telluride thin-film solar panel; 42. ETFE protective film; 43. Backsheet; 44. Mounting bracket; 5. Solar panel single-axis solar tracking component; 51. Photosensitive sensor; 52. Integrated power amplifier circuit chip; 53. Movable frame; 54. Shaft; 55. Main gear; 56. Secondary gear; 57. Servo motor; 58. Single-axis solar tracking bracket; 6. Wind turbine assembly; 61. Low wind speed permanent magnet generator; 62. Carbon fiber blades. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0023] Please see Figures 1-5 This utility model discloses a zero-carbon wind-solar hybrid device, including a protective box 1 and a support column 2 mounted on the protective box 1, and also includes a wind-solar hybrid voltage self-regulating component 3, a solar panel component 4, a solar panel single-axis solar tracking component 5, and a wind turbine component 6, wherein:

[0024] The wind-solar hybrid voltage self-regulating component 3 is located inside the protective box 1, and the support column 2 is a hollow column and is fixed to the top of the protective box 1 by screws.

[0025] Please refer to the appendix. Figure 2 The wind-solar hybrid voltage self-regulating component 3 includes an MPPT controller 31, a voltage regulator 32, a BMS system monitor 33, a bidirectional DC-DC converter 34, an energy storage box 35, an inverter control unit 36, and a lithium battery 37. The MPPT controller 31 is electrically connected to the bidirectional DC-DC converter 34, and the bidirectional DC-DC converter 34 is electrically connected to the BMS system monitor 33. Specifically, the inverter control unit 36 ​​can adjust the output voltage and frequency of the wind turbine to stabilize it within a suitable storage range. It can also control the start-up, shutdown, and speed of the wind turbine according to wind speed and other conditions to ensure the safe operation of the system. At the same time, it converts the DC power generated by the wind turbine into AC power for the use of screen printing equipment.

[0026] Please refer to the appendix. Figure 3 The BMS system monitor 33 is electrically connected to the lithium battery 37, the lithium battery 37 is electrically connected to the DC-DC converter 34, the MPPT controller 31 is electrically connected to the energy storage box 35, the energy storage box 35 is electrically connected to the inverter control unit 36, and the solar panel assembly 4 includes a cadmium telluride thin-film solar panel 41. The surface of the cadmium telluride thin-film solar panel 41 is covered with an ETFE protective film 42. Specifically, the ETFE protective film has excellent weather resistance and long-term resistance to the erosion of organic solvents in the exhaust gas of the screen printing workshop. It will not yellow and has good light transmittance, which greatly improves the conversion efficiency of solar energy.

[0027] The cadmium telluride thin-film solar panel 41 is heat-pressed to the backplate 43 through an encapsulating film. The power output terminal of the cadmium telluride thin-film solar panel 41 is electrically connected to the MPPT controller 31. A mounting bracket 44 is welded to one end of the backplate 43. Specifically, the MPPT controller 31 can automatically adjust the output according to the charging status of the lithium battery 37 to ensure charging efficiency and battery life. The bidirectional DC-DC converter 34 has a bidirectional buck-boost conversion function and can adapt to changes under different pulse voltages.

[0028] The wind turbine assembly 6 includes a low-speed permanent magnet generator 61. The low-speed permanent magnet generator 61 is symmetrically equipped with carbon fiber blades 62. The bottom end of the low-speed permanent magnet generator 61 is mounted on the support column 2 and electrically connected to the energy storage box 35. Specifically, the carbon fiber blades 62 are lightweight and easy to drive, which improves the wind energy conversion efficiency.

[0029] In this embodiment, after the wind and solar power generation is combined by the MPPT controller, it first supplies power to the screen printing equipment through the voltage regulator 32. When the equipment has a pulsed power demand, the BMS system monitor 33 monitors the load change of the voltage regulator 32 in real time and releases the energy stored in the lithium battery 37 to make up for the gap in a short time, so as to avoid the control module failure caused by voltage fluctuation. When the wind and solar power generation is greater than the power consumption of the equipment, the excess power is stored in the lithium battery 37 through the bidirectional DC-DC converter 34. Example 2

[0030] Based on the above embodiment 1, please refer to the appendix. Figure 4 as well as Figure 5 The single-axis solar tracking assembly 5 of the solar panel includes a photosensitive sensor 51, an integrated power amplifier circuit chip 52, a movable frame 53, a rotating shaft 54, a main gear 55, a secondary gear 56, a servo motor 57, and a single-axis solar tracking bracket 58.

[0031] The photosensitive sensor 51 and the integrated power amplifier circuit chip 52 are both fixed on the mounting bracket 44 with screws, and the photosensitive sensor 51 is symmetrically arranged on both sides of the integrated power amplifier circuit chip 52. The photosensitive sensor 51 is electrically connected to the integrated power amplifier circuit chip 52 and the cadmium telluride thin film battery plate 41.

[0032] The movable frame 53 is fixed to the back side of the back plate 43 by bolts, and the two ends of the rotating shaft 54 ​​are welded to the movable frame 53. The top of the single-axis sun-tracking bracket 58 passes through the middle and rotates in cooperation with it.

[0033] A secondary gear 56 is welded onto the rotating shaft 54. The secondary gear 56 meshes with the main gear 55 and rotates in coordination. The main gear 55 is connected to one end of the servo motor 57. The servo motor 57 is fixed to the top of the movable frame 53 by screws.

[0034] In this embodiment, as the direction of sunlight changes over time, different incident angles cause the resistance of the two symmetrically arranged photosensitive sensors 51 on the mounting bracket 44 to change and differ, thus generating a voltage difference in the circuits at the corresponding ends. At this time, the integrated power amplifier chip 52 acts as a voltage comparator to determine the magnitude of the voltage on both sides, thereby controlling the servo motor 57 to start. The servo motor 57 drives the secondary gear 56 to rotate through the main gear 55. The secondary gear 56 drives the rotating shaft 54 ​​to rotate on the single-axis sun-tracking bracket 58, thereby causing the movable frame 53 to drive the cadmium telluride thin-film solar panel 41 on the back plate 43 to perform sun-tracking motion. The movement of the back plate 43 will drive the photosensitive sensors 51 to rotate. When the two photosensitive sensors 51 are exactly at the center of the illumination, the voltage difference in the circuit disappears, the servo motor 57 stops working, thus ensuring that the solar panel is always facing the sun.

[0035] Working principle and usage process of this utility model:

[0036] First, the device is installed at a high place where there are no buildings around to block it. The direction of the solar panel is perpendicular to the axis of the sun's direction of movement. When the wind speed outside the workshop is greater than 3 m / s, the wind drives the carbon fiber blades 62 to rotate, which in turn drives the low wind speed permanent magnet generator 61 to generate electricity. The electricity is conducted to the energy storage box 35. The energy storage box 35 can store excess electrical energy when the wind speed is high and release electrical energy when the wind speed is low, ensuring that the output power is stably delivered to the MPPT controller 31.

[0037] When the device is exposed to sunlight, the cadmium telluride thin-film solar panel 41 receives the light and converts the light energy into electrical energy and transmits the electricity to the MPPT controller 31. The ETFE protective film on the cadmium telluride thin-film solar panel 41 has excellent weather resistance and the ability to resist the erosion of organic solvents in the exhaust gas of the screen printing workshop for a long time. It will not turn yellow and has good light transmittance, which greatly improves the conversion rate of solar energy.

[0038] As sunlight changes its direction of incidence over time, different angles of incidence cause the resistance of the two symmetrically arranged photosensitive sensors 51 on the mounting bracket 44 to change and differ, resulting in a voltage difference in the circuits at the corresponding ends. At this time, the integrated power amplifier chip 52 acts as a voltage comparator to determine the magnitude of the voltage on both sides, thereby controlling the servo motor 57 to start. The servo motor 57 drives the secondary gear 56 to rotate through the main gear 55. The secondary gear 56 drives the rotating shaft 54 ​​to rotate on the single-axis sun-tracking bracket 58, thereby causing the movable frame 53 to drive the cadmium telluride thin-film solar panel 41 on the back plate 43 to perform sun-tracking motion. The movement of the back plate 43 will drive the photosensitive sensors 51 to rotate. When the two photosensitive sensors 51 are exactly at the center of the sunlight, the voltage difference in the circuit disappears, and the servo motor 57 stops working, thus ensuring that the solar panel is always facing the sun, greatly improving the solar energy conversion efficiency.

[0039] When wind and solar power is combined through the MPPT controller, it prioritizes powering the screen printing equipment through the voltage regulator 32. When the equipment has a pulsed power demand, the BMS system monitor 33 monitors the load change of the voltage regulator 32 in real time and releases the energy stored in the lithium battery 37 to make up for the gap in a short time, so as to avoid the control module failure caused by voltage fluctuation. When the wind and solar power generation is greater than the power consumption of the equipment, the excess power is stored in the lithium battery 37 through the bidirectional DC-DC converter 34.

Claims

1. A zero-carbon wind-solar hybrid device, comprising a protective enclosure (1) and a support column (2) mounted on the protective enclosure (1), characterized in that, It also includes a wind-solar hybrid voltage self-regulating component (3), a solar panel component (4), a solar panel single-axis tracking component (5), and a wind turbine component (6), wherein: The wind-solar hybrid voltage self-regulating component (3) is located inside the protective box (1), and the support column (2) is a hollow column and is fixed to the top of the protective box (1) by screws; The wind-solar hybrid voltage self-regulating component (3) includes an MPPT controller (31), a voltage regulator (32), a BMS system monitor (33), a bidirectional DC-DC converter (34), an energy storage box (35), an inverter control unit (36), and a lithium battery (37). The MPPT controller (31) is electrically connected to the bidirectional DC-DC converter (34), and the bidirectional DC-DC converter (34) is electrically connected to the BMS system monitor (33). The BMS system monitor (33) is electrically connected to the lithium battery (37), the lithium battery (37) is electrically connected to the DC-DC converter (34), the MPPT controller (31) is electrically connected to the energy storage box (35), the energy storage box (35) is electrically connected to the inverter control unit (36), and the solar panel assembly (4) includes a cadmium telluride thin-film solar panel (41), the surface of which is covered with an ETFE protective film (42).

2. The zero-carbon wind-solar hybrid device according to claim 1, characterized in that: The cadmium telluride thin-film solar panel (41) is heat-pressed to the back plate (43) through an encapsulating film. The power output terminal of the cadmium telluride thin-film solar panel (41) is electrically connected to the MPPT controller (31). A mounting bracket (44) is welded to one end of the back plate (43).

3. A zero-carbon wind-solar hybrid device according to claim 2, characterized in that: The wind turbine assembly (6) includes a low wind speed permanent magnet generator (61), which is symmetrically provided with carbon fiber blades (62) around its perimeter. The bottom end of the low wind speed permanent magnet generator (61) is mounted on a support column (2) and electrically connected to an energy storage box (35).

4. A zero-carbon wind-solar hybrid device according to claim 1, characterized in that: The single-axis solar tracking assembly (5) of the solar panel includes a photosensitive sensor (51), an integrated power amplifier circuit chip (52), a movable frame (53), a rotating shaft (54), a main gear (55), a secondary gear (56), a servo motor (57), and a single-axis solar tracking bracket (58).

5. A zero-carbon wind-solar hybrid device according to claim 4, characterized in that: The photosensitive sensor (51) and the integrated power amplifier circuit chip (52) are both fixed on the mounting bracket (44) by screws, and the photosensitive sensor (51) is symmetrically arranged on both sides of the integrated power amplifier circuit chip (52). The photosensitive sensor (51) is electrically connected to the integrated power amplifier circuit chip (52) and the cadmium telluride thin film battery plate (41).

6. A zero-carbon wind-solar hybrid device according to claim 5, characterized in that: The movable frame (53) is fixed to the back side of the back plate (43) by bolts. The two ends of the rotating shaft (54) are welded to the movable frame (53), and the middle part passes through the top of the single-axis sun-chasing bracket (58) and rotates in cooperation.

7. A zero-carbon wind-solar hybrid device according to claim 6, characterized in that: A secondary gear (56) is welded onto the rotating shaft (54). The secondary gear (56) meshes with the main gear (55) and rotates in coordination. The main gear (55) is connected to one end of the servo motor (57). The servo motor (57) is fixed to the top of the movable frame (53) by screws.

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