Wind and light storage integrated power generation device for micro-grid

Abstract

The invention relates to the technical field of power generation, in particular to a wind and light storage integrated power generation device for a micro-grid, which comprises a control assembly, the control assembly is arranged on a vertical shaft and arranged below a wind power assembly, the control assembly comprises an outer ring and a sliding block, and a slideway is formed in the end face, facing the wind power assembly, of the outer ring; the sliding ways are coaxial with the rotating centers of the blades, the rotating shafts are rotationally arranged on the crank, the bottom of each rotating shaft is connected with a sliding block arranged in the corresponding sliding way in a sliding mode, and the center of each sliding block is coaxial with the axis of the corresponding rotating shaft. Through the arrangement of the control assembly, the blades can be alternately converted between a progress area and a return stroke area during revolution; when the blades pass through the process area, the driving force for driving the generator head to rotate in the process is improved; when the blades pass through the return stroke area, the blades can be interfered by wind power in the wind breaking process and freely develop to the minimum resistance angle, and therefore the resistance to rotation of the generator head in the return stroke process is reduced to the maximum extent.

Description

Technical Field

[0001] The present invention relates to the technical field of power generation, and in particular to a wind-solar-storage integrated power generation device for a microgrid. Background Art

[0002] Although renewable energy sources such as wind and solar energy have the advantages of being clean and renewable, they also have obvious intermittency and uncertainty; for example, wind power generation is greatly affected by changes in wind speed, while photovoltaic power generation depends on weather conditions and the alternation of day and night; in order to overcome these problems, wind and solar power generation are combined with energy storage technology to form an integrated wind, solar and storage power generation device for microgrids; the integrated wind, solar and storage power generation device is an important component of the microgrid system. It realizes the effective utilization and management of renewable energy by integrating wind power generation, solar power generation and energy storage systems.

[0003] However, in actual use, taking vertical axis wind power generation as an example, the blades often have a forward stroke and a return stroke during the process of rotation driven by wind. The blades in the forward stroke need to overcome the resistance brought by the blades in the return stroke to achieve rotation, resulting in a lower rotation speed and poor power generation efficiency. Summary of the invention

[0004] In view of the problems in the prior art, the present invention provides a wind-solar-storage integrated power generation device for a microgrid. The specific technical solution is as follows:

[0005] A wind-solar-storage integrated power generation device for a microgrid, comprising a vertical shaft and a wind power assembly arranged on the top of the vertical shaft, wherein the wind power assembly comprises a generator head rotatably arranged on the top of the vertical shaft and a plurality of groups of drive arms uniformly distributed around the circumference of the generator head, wherein the drive arm comprises a crank, a rotating shaft and blades, wherein the rotating shaft is connected to the free end of the crank, and the blades are arranged on the top of the rotating shaft;

[0006] It also includes a control component, which is mounted on the vertical shaft and arranged below the wind power component. The control component includes an outer ring and a slider. The outer ring is provided with a slideway on the end surface facing the wind power component. The slideway is coaxial with the rotation center of the blade. The rotating shaft is rotatably arranged on the crank, and the bottom of each rotating shaft is connected to a slider slidably arranged in the slideway, and the center of the slider is coaxial with the axis of the rotating shaft.

[0007] The slideway is divided into a forward area and a return area along a dividing line L. When the blade is driven by wind to revolve, the slider is driven to alternate between the forward area and the return area. When the slider slides in the forward area, the forward area is close to the slider and limits the angle of the blade, and the blade extends in the long direction through its center of revolution. When the slider slides in the return area, there is a gap between the slider and the return area to allow the blade to rotate around the axis of rotation.

[0008] As a further technical solution of the present invention, the control component also includes an inner ring and a connecting rod, the inner ring is connected to the surface of the vertical shaft, the outer ring is spaced outside the inner ring, and the outer ring and the inner ring are connected by a connecting rod.

[0009] As a further technical solution of the present invention, the dividing line L is a line parallel to the wind direction passing through the center of the slide.

[0010] As a further technical solution of the present invention, the distance from the center of the slider to the outer diameter of the progress area is R, the distance from the center of the slider to the outer diameter of the return area is R, and the slider has a shortest radius r and a longest radius r, and r=R, R>r.

[0011] As a further technical solution of the present invention, the inner ring is rotatably connected to the vertical shaft, and the vertical shaft is also provided with an adjustment component for driving the outer ring to rotate, the adjustment component includes a support plate, a drive motor, a driving gear, a gear ring and a wind direction sensor, the support plate is mounted on the vertical shaft, the drive motor is mounted on the support plate, the driving gear is connected to the output end of the drive motor, and the gear ring is coaxially connected to the bottom of the inner ring.

[0012] As a further technical solution of the present invention, the wind direction sensor is installed on the generator head and monitors the wind direction in real time. The wind direction sensor is communicatively connected to the drive motor and feeds back an electrical signal to the drive motor. When the drive motor receives the electrical signal from the wind direction sensor, it starts and drives the outer ring to rotate so that the dividing line L is always parallel to the wind direction.

[0013] As a further technical solution of the present invention, it also includes at least one photovoltaic component installed on a vertical shaft, the vertical shaft is a hollow structure, a generator and an energy storage component are installed inside the vertical shaft, the generator and the wind power component are transmission connected, the energy storage component and the generator are electrically connected, and the photovoltaic component and the energy storage component are electrically connected.

[0014] The beneficial effects of the present invention are as follows:

[0015] (1) In the present application, the control assembly is set so that the blade can alternate between the forward travel area and the return travel area during its revolution;

[0016] When the blades pass through the process area, their angle is fixed, and at this time the longitudinal direction extends past their revolution center, so that the blades are at the optimal windward angle, increasing the driving force for the generator head to rotate during the process;

[0017] When the blades pass through the return area, their restrictions are lifted. At this time, the blades can rotate due to the interference of wind force. When the blades are free, they will be interfered by wind force during the wind breaking process and develop freely to the angle of minimum resistance, thereby minimizing the resistance to the rotation of the generator head during the return journey, and comprehensively improving the rotation speed and power generation efficiency of the generator head.

[0018] (2) In the present application, by adjusting the setting of the components, as the wind direction changes, the wind direction sensor can sense the change in wind direction and convert it into an electrical signal and feed it back to the drive motor, and the drive motor can drive the outer ring to rotate according to the received electrical signal to adjust the angle of the dividing line L in real time, so that the dividing line L is always parallel to the wind direction, that is, the process area and the return area are always divided into two parts by the wind direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The overall structural schematic diagram of the wind-solar-storage integrated power generation device for microgrid is shown;

[0020] Figure 2 A perspective view of a wind power assembly is shown;

[0021] Figure 3 A schematic diagram of the structure of the rotating shaft and the blades is shown;

[0022] Figure 4 A schematic diagram of the structure of the control component is shown;

[0023] Figure 5 A schematic diagram of the projection structure of the outer ring is shown;

[0024] Figure 6 A schematic diagram of the projection structure of the slider and the outer ring is shown;

[0025] Figure 7 A schematic diagram of the structure of a slider is shown;

[0026] Figure 8 A schematic diagram of the projection structure of the blades on the outer ring is shown;

[0027] Fig. 9 A schematic structural diagram of the regulating component is shown.

[0028] Description of the drawings: 100, vertical axis; 200, photovoltaic module; 300, wind power module; 310, generator head; 320, drive arm; 321, crank; 322, rotating shaft; 323, blade; 400, control module; 410, inner ring; 420, connecting rod; 430, outer ring; 431, slideway; 431a, forward area; 431b, return area; 440, slider; 500, adjustment module; 510, support plate; 520, drive motor; 530, driving gear; 540, gear ring; 550, wind direction sensor. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0030] Figure 1 The overall structural schematic diagram of the wind-solar-storage integrated power generation device for microgrid is shown; Figure 1 In the invention, a vertical shaft 100, at least one photovoltaic assembly 200 mounted on the vertical shaft 100, and a wind assembly 300 arranged on the top of the vertical shaft 100 are included; the vertical shaft 100 is used to support the entire power generation device, and the vertical shaft 100 is a hollow structure for installing corresponding components and for cable shuttle. A turbine generator and an energy storage assembly are installed inside the vertical shaft 100, the generator and the wind assembly 300 are connected by transmission, the energy storage assembly and the generator are electrically connected, and the photovoltaic assembly 200 and the energy storage assembly are electrically connected; when in use, the blades of the wind assembly 300 capture the wind energy in the natural environment, the wind assembly 300 converts the wind energy into mechanical energy and transmits it to the generator, and the generator collects the electrical energy to the energy storage part through the rectifier transformer inside the energy storage assembly. Among them, the power generation and energy storage methods of the generator are conventional technologies in this field, and its working principle will not be described in detail here.

[0031] Figure 2 A perspective view of a wind power assembly 300 is shown; Figure 3 A schematic diagram of the structure of the rotating shaft 322 and the blade 323 is shown; Figure 2 and Figure 3 In the figure, the wind power assembly 300 includes a generator head 310 rotatably arranged on the top of the vertical shaft 100, and the generator head 310 is connected to the generator in a transmission manner; when the generator head 310 rotates, the generator can convert the mechanical energy generated by the generator head 310 into electrical energy and transmit it to the energy storage assembly; a plurality of groups of driving arms 320 are evenly arranged on the outer circumference of the generator head 310, and the driving arm 320 includes a crank 321, a rotating shaft 322 and blades 323, the rotating shaft 322 is connected to the free end of the crank 321, and the blades 323 are arranged on the top of the rotating shaft 322; when in use, driven by wind force, the blades 323 drive the driving arm 320 to rotate as a whole, and a plurality of groups of driving arms 320 drive the generator head 310 to rotate to realize the conversion of wind energy into mechanical energy.

[0032] Figure 4 A schematic diagram of the structure of the control component 400 is shown; Figure 5 A schematic diagram of the projection structure of the outer ring 430 is shown; Figure 6 A schematic diagram of the projection structure of the slider 440 and the outer ring 430 is shown; Figure 7 A schematic diagram of the structure of the slider 440 is shown; Figure 8A schematic diagram of the projection structure of the blade 323 on the outer ring 430 is shown; Figure 4-Figure 8 The invention also includes a control assembly 400, which is mounted on the vertical shaft 100 and arranged below the wind assembly 300. The control assembly 400 includes an inner ring 410, a connecting rod 420, an outer ring 430 and a slider 440. The inner ring 410 is connected to the surface of the vertical shaft 100 to support the entire control assembly 400. The outer ring 430 is arranged outside the inner ring 410 at intervals. The outer ring 430 and the inner ring 410 are connected by a connecting rod 420. A slideway 431 is provided on the end surface of the outer ring 430 facing the wind assembly 300. The slideway 431 is coaxial with the rotation center of the blade 323. The rotating shaft 322 is rotatably arranged on the crank 321, and each rotating shaft 322 is connected to a sliding arrangement at the bottom. The center of the slider 440 in the slideway 431 is coaxial with the axis of the rotating shaft 322. Since the center of the slider 440 is coaxial with the axis of the rotating shaft 322, and the slider 440 is slidably arranged in the slideway 431, the driving arm 320 can simultaneously drive the slider 440 to slide in the slideway 431 while the driving arm 320 revolves as a whole, thereby increasing the stability of the rotation of the driving arm 320. Since the rotating shaft 322 is rotatably arranged on the crank 321, the rotating shaft 322 can rotate relative to the crank 321, that is, it can drive the blades 323 to rotate in the process of revolving around the generator head 310. In other words, while the driving arm 320 is driven by wind to revolve, it is also allowed to rotate.

[0033] The slide 431 is divided into a process area 431a and a return area 431b along a dividing line L, and the dividing line L is a line parallel to the wind direction passing through the center of the slide 431, the distance from the center of the slider 440 to the outer diameter of the process area 431a is R1, and the distance from the center of the slider 440 to the outer diameter of the return area 431b is R2, and the slider 440 has a shortest radius r1 and a longest radius r2, and r1=R1, R2>r2; because R2>r2, that is, the slider 440 is allowed to rotate when sliding in the return area 431b, and there will be no interference between the boundary of the slider 440 and the slide 431, and r1=R1, which means that when the slider 440 slides in the process area 431a, it is not allowed to rotate, and the side wall of the shortest side of the slider 440 slides close to the outer diameter of the process area 431a, and the angle of the blade 323 is fixed at this time.

[0034] When the blade 323 is driven by wind to revolve, it drives the slider 440 to alternate between the advance area 431a and the return area 431b. When the slider 440 slides in the advance area 431a, the advance area 431a is close to the slider 440 and limits the angle of the blade 323, and the length of the blade 323 extends past its revolution center; when the slider 440 slides in the return area 431b, there is a gap between the slider 440 and the return area 431b to allow the blade 323 to rotate around the rotation axis 322; this shows that when the blade 323 passes through the advance area 431a, its angle is fixed. , and at this time, the longitudinal extension passes through its revolution center, so that the blade 323 is at the optimal windward angle, thereby increasing the driving force for driving the generator head 310 to rotate during the forward movement; and when the blade 323 passes through the return area 431b, its restriction is released. At this time, the blade 323 can rotate due to the interference of wind force, and when the blade 323 is free, according to aerodynamics and fluid mechanics, it will be interfered by the wind force during the wind-breaking process and develop freely to the minimum resistance angle, thereby minimizing the resistance to the rotation of the generator head 310 during the return journey, and comprehensively improving the rotation speed and power generation efficiency of the generator head 310.

[0035] Fig. 9 A schematic diagram of the structure of the adjustment component 500 is shown; Fig. 9 In the embodiment, the inner ring 410 is rotatably connected with the vertical shaft 100, and the vertical shaft 100 is also provided with an adjustment component 500 for driving the outer ring 430 to rotate. The adjustment component 500 includes a support plate 510, a drive motor 520, a driving gear 530, a gear ring 540 and a wind direction sensor 550. The support plate 510 is mounted on the vertical shaft 100, the drive motor 520 is mounted on the support plate 510, the driving gear 530 is connected to the output end of the drive motor 520, the gear ring 540 is coaxially connected to the lower part of the inner ring 410, the wind direction sensor 550 is mounted on the generator head 310 and monitors the wind direction in real time, and the wind direction sensor 550 and the drive motor 520 communication connection and feed back electrical signals to the driving motor 520. When the driving motor 520 receives the electrical signals from the wind direction sensor 550, it starts and drives the outer ring 430 to rotate so that the dividing line L is always parallel to the wind direction; that is, as the wind direction changes, the wind direction sensor 550 can sense the change in wind direction and convert it into electrical signals and feed back to the driving motor 520, and the driving motor 520 can drive the outer ring 430 to rotate according to the received electrical signals to adjust the angle of the dividing line L in real time, so that the dividing line L is always parallel to the wind direction, that is, the process area 431a and the return area 431b are always divided into two parts by the wind direction.

[0036] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them.

Claims

1. A wind-solar-storage integrated power generation device for a microgrid, comprising a vertical shaft (100) and a wind power assembly (300) arranged on the top of the vertical shaft (100), wherein the wind power assembly (300) comprises a generator head (310) rotatably arranged on the top of the vertical shaft (100) and a plurality of groups of drive arms (320) uniformly distributed around the generator head (310) in a circumferential direction, wherein the drive arm (320) comprises a crank (321), a rotating shaft (322) and a blade (323), wherein the rotating shaft (322) is connected to the free end of the crank (321), and the blade (323) is arranged on the top of the rotating shaft (322); It is characterized in that The invention also comprises a control assembly (400), wherein the control assembly (400) is mounted on the vertical shaft (100) and arranged below the wind assembly (300), and the control assembly (400) comprises an outer ring (430) and a slider (440), wherein a slideway (431) is provided on the end surface of the outer ring (430) facing the wind assembly (300), wherein the slideway (431) is coaxial with the rotation center of the blade (323), and the rotating shaft (322) is rotatably arranged on the crank (321), and the bottom of each rotating shaft (322) is connected to a slider (440) slidably arranged in the slideway (431), and the center of the slider (440) is coaxial with the axis of the rotating shaft (322); The slideway (431) is divided into a progress area (431a) and a return area (431b) along a dividing line L. When the blade (323) is driven by wind to revolve, it drives the slider (440) to alternate between the progress area (431a) and the return area (431b). When the slider (440) slides in the progress area (431a), the progress area (431a) is tightly attached to the slider (440) and limits the angle of the blade (323), and the blade (323) extends in the length direction over its revolution center; when the slider (440) slides in the return area (431b), there is a gap between the slider (440) and the return area (431b) to allow the blade (323) to rotate around the rotation axis (322).

2. The wind-solar-storage integrated power generation device for a microgrid according to claim 1 is characterized in that: The control assembly (400) further comprises an inner ring (410) and a connecting rod (420); the inner ring (410) is connected to the surface of the vertical shaft (100); the outer ring (430) is arranged outside the inner ring (410) at intervals; and the outer ring (430) and the inner ring (410) are connected via the connecting rod (420).

3. The wind-solar-storage integrated power generation device for a microgrid according to claim 2 is characterized in that: The dividing line L is a line parallel to the wind direction passing through the center of the slideway (431).

4. The wind-solar-storage integrated power generation device for a microgrid according to claim 2 is characterized in that: The distance from the center of the slider (440) to the outer diameter of the progress area (431a) is R1, and the distance from the center of the slider (440) to the outer diameter of the return area (431b) is R2. The slider (440) has a shortest radius r1 and a longest radius r2, and r1=R1, R2>r2.

5. The wind-solar-storage integrated power generation device for microgrid according to claim 2 is characterized in that: The inner ring (410) is rotatably connected to the vertical shaft (100); an adjusting assembly (500) for driving the outer ring (430) to rotate is also arranged on the vertical shaft (100); the adjusting assembly (500) comprises a support plate (510), a drive motor (520), a driving gear (530), a gear ring (540) and a wind direction sensor (550); the support plate (510) is mounted on the vertical shaft (100); the drive motor (520) is mounted on the support plate (510); the driving gear (530) is connected to the output end of the drive motor (520); and the gear ring (540) is coaxially connected to the lower side of the inner ring (410).

6. The wind-solar-storage integrated power generation device for a microgrid according to claim 5 is characterized in that: The wind direction sensor (550) is installed on the generator head (310) and monitors the wind direction in real time. The wind direction sensor (550) is connected to the drive motor (520) for communication and feeds back an electrical signal to the drive motor (520). When the drive motor (520) receives the electrical signal from the wind direction sensor (550), it starts and drives the outer ring (430) to rotate so that the dividing line L is always parallel to the wind direction.

7. The wind-solar-storage integrated power generation device for a microgrid according to any one of claims 1 to 6, characterized in that: It also includes at least one photovoltaic assembly (200) mounted on a vertical shaft (100); the vertical shaft (100) is a hollow structure; a generator and an energy storage assembly are mounted inside the vertical shaft (100); the generator and the wind assembly (300) are transmission-connected; the energy storage assembly and the generator are electrically connected; and the photovoltaic assembly (200) and the energy storage assembly are electrically connected.

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