Independent power generation system using air temperature difference convection and control method thereof

Abstract

The present invention relates to an independent power generation system utilizing air temperature difference convection and a control method thereof, belonging to the technical field of wind power generation. The system comprises a system housing; the system housing comprises a diffuser, a beam section and a collector; the left side of the beam section is fixedly connected to the diffuser, and the right side is fixedly connected to the collector; the bottom of the system housing is fixed on a base frame; a wind speed sensor is installed in the beam section; a plurality of coaxially arranged blades are also installed in the beam section; a connecting rod is also included, which connects all blades from right to left and transmits them to a generator set through a universal joint; a servo motor and a servo driver are installed on one side of each blade; the system of the present invention has the advantages of simple structure, convenient maintenance, low cost, long service life, convenient installation, safety and stability, long service life, low failure rate, etc., and is easy to promote and apply.

Description

Technical Field

[0001] The present invention belongs to the technical field of wind power generation, and in particular relates to an independent power generation system utilizing air temperature difference convection and a control method thereof. Background Art

[0002] Wind power generation is the process of converting wind kinetic energy into mechanical kinetic energy, and then converting mechanical energy into electrical kinetic energy. As a renewable clean energy source, it is increasingly valued and utilized by people. Wind power generation uses wind power to drive the windmill blades to rotate, and then increases the speed of rotation through a speed increaser to drive the generator to generate electricity. According to windmill technology, it can start generating electricity at a breeze speed of about three meters per second. Wind power generation is becoming a trend in the world because it does not require the use of fuel and does not produce radiation or air pollution.

[0003] However, wind power generation currently has the following problems: wind power generation is noisy, the equipment is large, the installation requirements are high, and it can only be built in open areas. The huge blades also cause interference to flying birds when they are running. At the same time, the exposed blades are quickly weathered by sunlight and have a short lifespan. Therefore, how to overcome the shortcomings of the existing technology is an urgent problem to be solved in the field of wind power generation technology. Summary of the invention

[0004] The purpose of the present invention is to address the deficiencies of the prior art and to provide an independent power generation system utilizing air temperature difference convection and a control method thereof. The system designs the blades inside the system to overcome the threat of weathering due to sunlight exposure, utilizes the principle of air temperature difference flow to drive the blades to operate, and utilizes the designed control system to group the blades to generate electricity according to different wind speeds.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0006] An independent power generation system utilizing air temperature difference convection, including a system housing;

[0007] The system housing comprises a diffuser, a beam section and a collector;

[0008] The left side of the beam section is fixedly connected to the diffuser, and the right side is fixedly connected to the collector;

[0009] The bottom of the system housing is fixed to the base frame;

[0010] A wind speed sensor is installed in the beam section;

[0011] A plurality of coaxially arranged blades are also installed in the beam section;

[0012] It also includes a connecting rod, which connects all the blades from right to left and transmits the power to the generator set through a universal joint;

[0013] A servo drive and a servo motor driven by the servo drive are installed on one side of each blade;

[0014] The wind speed sensor is connected to the servo drive.

[0015] Furthermore, preferably, it further comprises an engine frame, and the generator set is fixedly mounted on the engine frame.

[0016] Further, preferably, there are six blades.

[0017] Further, preferably, the servo motor and the servo driver are installed on the right side of the blade.

[0018] Further, preferably, a drain hole is provided at the bottom of the diffuser.

[0019] The present invention also provides a method for controlling independent power generation by using air temperature difference convection, which uses the above-mentioned independent power generation system by using air temperature difference convection, and comprises the following steps:

[0020] Assume that there are six blades in total, which are the first blade, the second blade, the third blade, the fourth blade, the fifth blade, and the sixth blade from right to left. Six servo motors and servo drivers are installed corresponding to the six blades, which are the first servo motor and the first servo driver, the second servo motor and the second servo driver, the third servo motor and the third servo driver, the fourth servo motor and the fourth servo driver, the fifth servo motor and the fifth servo driver, and the sixth servo motor and the sixth servo driver; control is performed according to the wind speed detected by the wind speed sensor:

[0021] 1) If the wind force reaches level 8, that is, the wind speed is greater than 17m / s, the first servo driver controls the first servo motor to brake the first blade, so that it stops running and stops working; if the wind speed is less than or equal to 17m / s, the first servo driver controls the first servo motor to stop braking the first blade, so that it runs and works;

[0022] 2) If the wind force reaches level 7, that is, the wind speed is greater than 13m / s, the second servo driver controls the second servo motor to brake the second blade, so that it stops running and stops working; if the wind speed is less than or equal to 13m / s, the second servo driver controls the second servo motor to stop braking the second blade, so that it runs and works;

[0023] 3) If the wind speed reaches level 6, that is, the wind speed is greater than 10m / s, the third servo driver controls the third servo motor to brake the third blade, so that it stops running and stops working; if the wind speed is less than or equal to 10m / s, the third servo driver controls the third servo motor to stop braking the third blade, so that it runs and works;

[0024] 4) If the wind force reaches level 5, that is, the wind speed is greater than 8m / s, the fourth servo driver controls the fourth servo motor to brake the fourth blade, so that it stops running and stops working; if the wind speed is less than or equal to 8m / s, the fourth servo driver controls the fourth servo motor to stop braking the fourth blade, so that it runs and works;

[0025] 5) If the wind force reaches level 4, that is, the wind speed is greater than 5.5m / s, the fifth servo driver controls the fifth servo motor to brake the fifth blade, so that it stops running and stops working; if the wind speed is less than or equal to 5.5m / s, the fifth servo driver controls the fifth servo motor to stop braking the fifth blade, so that it runs and works;

[0026] 6) If the wind force reaches level 3, that is, the wind speed is greater than 1.6m / s, the sixth servo driver controls the sixth servo motor to brake the sixth blade so that it stops running and stops working; if the wind speed is less than or equal to 1.6m / s, the sixth servo driver controls the sixth servo motor to stop braking the sixth blade and keep it running and working.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] The present invention utilizes the air temperature difference convection independent power generation system. The blades are designed inside the system, which reduces the sunlight weathering speed, has a small loss of tight wind flow around it, has low noise, and does not cause interference to flying birds during operation. At the same time, the designed drainage holes can remove internal water accumulation and reduce the occurrence of faults. In addition, the installation is simple, and there is no need to open mountains and build roads, which saves costs.

[0029] The independent power generation system utilizing air temperature difference convection of the present invention has the advantages of simple structure, convenient maintenance, low cost, long service life, convenient installation, safety and stability, long service life and low failure rate. It can be built in valleys and can meet the requirements of narrow spaces with air temperature difference convection in upper and lower elevations, and is easy to promote and apply. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0031] Figure 1 This is a schematic diagram of the structure of the independent power generation system utilizing air temperature difference convection of the present invention;

[0032] Figure 2 This is a logic diagram of the independent power generation control method using air temperature difference convection of the present invention;

[0033] Among them, 1. Basic frame; 2. Drain hole; 3. Diffuser; 4. Blade; 5. Servo motor and servo driver; 6. Connecting rod; 7. Universal joint; 8. Wind speed sensor; 9. Beam section; 10. Collecting port; 11. Generator set; 12. Engine frame; 13. Servo driver. DETAILED DESCRIPTION

[0034] The present invention is further described in detail below in conjunction with embodiments.

[0035] Those skilled in the art will understand that the following examples are only used to illustrate the present invention and should not be considered to limit the scope of the present invention. If no specific technology, connection relationship or condition is specified in the examples, the technology, connection relationship, condition described in the literature in the field or the product specification is used. If the manufacturer of the materials, instruments or equipment used is not specified, they are all conventional products that can be purchased.

[0036] Those skilled in the art will appreciate that, unless expressly stated otherwise, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present invention refers to the presence of the features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof. It should be understood that when we refer to an element as being "connected" to another element, it may be directly connected to the other element, or intermediate elements may also be present. Furthermore, the "connection" used herein may include wireless connections. The term "and / or" used herein includes any unit and all combinations of one or more of the associated listed items.

[0037] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two. The terms "inside", "upper", "lower", etc., indicating positions or state relationships, are based on the positions or state relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operate in a specific position, and therefore cannot be understood as limiting the present invention.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "provided with" 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 an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention will be understood according to specific circumstances.

[0039] It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as generally understood by those skilled in the art in the field to which the present invention belongs. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with the meanings in the context of the prior art, and will not be interpreted with idealized or overly formal meanings unless defined as herein.

[0040] like Figure 1 As shown, an independent power generation system utilizing air temperature difference convection includes a system housing;

[0041] The system housing includes a diffuser 3, a beam section 9 and a collector 10;

[0042] The left side of the beam section 9 is fixedly connected to the diffuser 3, and the right side is fixedly connected to the collector 10;

[0043] The bottom of the system housing is fixed on the basic frame 1;

[0044] A wind speed sensor 8 is installed in the beam section 9;

[0045] A plurality of coaxially arranged blades 4 are also installed in the beam section 9;

[0046] It also includes a connecting rod 6, which connects all the blades from right to left and transmits the power to the generator set 11 through a universal joint 7;

[0047] A servo driver 13 and a servo motor 5 driven by the servo driver 13 are installed on one side of each blade 4;

[0048] The wind speed sensor 8 is connected to the servo driver 13. The servo driver 13 is used to control the operation of the servo motor 5 according to whether the monitoring value of the wind speed sensor 8 reaches a preset threshold value; when the monitoring value is greater than the threshold value, the blade 4 is braked, otherwise the blade 4 is operated.

[0049] The preferred solution further includes an engine frame 12 , and the generator set 11 is fixedly mounted on the engine frame 12 .

[0050] In a preferred embodiment, there are six blades 4 .

[0051] In a preferred embodiment, the servo motor and the servo driver 5 are installed on the right side of the blade 4 .

[0052] In a preferred embodiment, a drain hole 2 is provided at the bottom of the diffuser 3 .

[0053] The basic frame 1 is installed below the system casing to provide a stable support for the power generation system.

[0054] The engine block frame 12 is installed below the engine block 11 to provide a stable support for the generator block.

[0055] A servo motor and a servo driver 5 are installed on the right side of the blade 4. The servo motor and the servo driver 5 brake the blade 4 according to the feedback of the wind speed sensor 8. Preferably, the wind speed sensor 8 is installed at the top of the beam section 9.

[0056] The rotating part of the blade 4 is a ratchet mechanism, which is a unidirectional intermittent motion mechanism.

[0057] The connecting rod 6 connects the six blades from right to left and transmits the power to the generator set 11 through the universal joint 7.

[0058] The collecting port 10 located on the right side plays the role of concentrating the wind flow, sending the wind flow into the beam section 9, and after the blades 4 do work, the wind flow is discharged into the atmosphere through the diffuser port 3 at the top.

[0059] The drain hole 2 at the bottom is used to drain the accumulated water inside the power generation system.

[0060] Installation steps:

[0061] 1) Install the base frame 1 and the engine assembly frame 12, on which the beam section 9 and the generator set 11 are respectively installed.

[0062] 2) Six blades 4 are installed from left to right inside the beam section 9, each blade 4 is installed with a matching servo motor and a servo driver 5, and the blades 4 are connected by connecting rods 6; Note: the connecting rod 6 is preferably an integral one;

[0063] 3) The connection between the connecting rod 6 and the generator set 11 is preferably connected through a connecting rod and a universal joint 7 , and the turning parts are connected through the universal joint 7 .

[0064] 4) The collecting port 10 is installed on the right side of the beam section 9, and the diffuser 3 is installed on the left side.

[0065] 5) Install the wind speed sensor 8 in the beam section 9.

[0066] like Figure 2 As shown, the independent power generation control method using air temperature difference convection adopts the above-mentioned independent power generation system using air temperature difference convection, including the following steps:

[0067] Assume that there are six blades in total, which are the first blade, the second blade, the third blade, the fourth blade, the fifth blade, and the sixth blade from right to left. Six servo motors and servo drivers are installed corresponding to the six blades, which are the first servo motor and the first servo driver, the second servo motor and the second servo driver, the third servo motor and the third servo driver, the fourth servo motor and the fourth servo driver, the fifth servo motor and the fifth servo driver, and the sixth servo motor and the sixth servo driver; control is performed according to the wind speed detected by the wind speed sensor:

[0068] 1) If the wind force reaches level 8, that is, the wind speed is greater than 17m / s, the first servo driver controls the first servo motor to brake the first blade, so that it stops running and stops working; if the wind speed is less than or equal to 17m / s, the first servo driver controls the first servo motor to stop braking the first blade, so that it runs and works;

[0069] 2) If the wind force reaches level 7, that is, the wind speed is greater than 13m / s, the second servo driver controls the second servo motor to brake the second blade, so that it stops running and stops working; if the wind speed is less than or equal to 13m / s, the second servo driver controls the second servo motor to stop braking the second blade, so that it runs and works;

[0070] 3) If the wind speed reaches level 6, that is, the wind speed is greater than 10m / s, the third servo driver controls the third servo motor to brake the third blade, so that it stops running and stops working; if the wind speed is less than or equal to 10m / s, the third servo driver controls the third servo motor to stop braking the third blade, so that it runs and works;

[0071] 4) If the wind force reaches level 5, that is, the wind speed is greater than 8m / s, the fourth servo driver controls the fourth servo motor to brake the fourth blade, so that it stops running and stops working; if the wind speed is less than or equal to 8m / s, the fourth servo driver controls the fourth servo motor to stop braking the fourth blade, so that it runs and works;

[0072] 5) If the wind force reaches level 4, that is, the wind speed is greater than 5.5m / s, the fifth servo driver controls the fifth servo motor to brake the fifth blade, so that it stops running and stops working; if the wind speed is less than or equal to 5.5m / s, the fifth servo driver controls the fifth servo motor to stop braking the fifth blade, so that it runs and works;

[0073] 6) If the wind force reaches level 3, that is, the wind speed is greater than 1.6m / s, the sixth servo driver controls the sixth servo motor to brake the sixth blade so that it stops running and stops working; if the wind speed is less than or equal to 1.6m / s, the sixth servo driver controls the sixth servo motor to stop braking the sixth blade and keep it running and working.

[0074] The purpose of controlling the corresponding servo drive and servo motor blades at different wind speeds is to prevent the wind speed from being too high, damaging the blades and the mechanical structure.

[0075] Product principle:

[0076] The system uses the flow principle generated by different air temperature differences, and converts the flowing air into mechanical energy through the rotation of the blades. The blades drive the connecting rods to allow the generator set to do work and convert it into electrical energy for power generation.

[0077] There are differences in the vertical distribution of atmospheric temperature. The temperature of the ground is decreasing within a certain range upward. The ground temperature is high, the air pressure is high, and the density is high. Due to the diffusion movement of the gas (Brownian motion), air convection is generated, and its potential energy is converted into kinetic energy to drive the generator set to rotate. The generator set then converts the kinetic energy into electrical energy to generate electricity. Compared with the prior art, the advantages of the present invention are: it utilizes the atmospheric temperature difference to be diffused and convected in a continuous cycle to achieve the purpose of the generator set doing work, thus achieving continuous and stable power generation.

[0078] The purpose of designing the collecting port is to collect more air to flow into the cavity of the device, and the purpose of the beam section is to accelerate the flow rate of the air passing through the collecting port to drive the blades to do work. The present invention occupies a small area, has low cost and has a broad development prospect.

[0079] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A method for controlling power generation of an independent power generation system using air temperature difference convection, characterized in that: The independent power generation system utilizing air temperature difference convection comprises a system housing; The system housing comprises a diffuser (3), a beam section (9) and a collector (10); The left side of the beam section (9) is fixedly connected to the diffuser (3), and the right side is fixedly connected to the collector (10); The bottom of the system housing is fixed on the base frame (1); A wind speed sensor (8) is installed in the beam section (9); A plurality of coaxially arranged blades (4) are also installed in the beam section (9); It also includes a connecting rod (6), which connects all the blades from right to left and transmits power to the generator set (11) through a universal joint (7); A servo drive (13) and a servo motor (5) driven by the servo drive (13) are installed on one side of each blade (4); The wind speed sensor (8) is connected to the servo driver (13); The power generation control method comprises the following steps: Assume that there are six blades in total, which are the first blade, the second blade, the third blade, the fourth blade, the fifth blade, and the sixth blade from right to left. Six servo motors and servo drivers are installed corresponding to the six blades, which are the first servo motor and the first servo driver, the second servo motor and the second servo driver, the third servo motor and the third servo driver, the fourth servo motor and the fourth servo driver, the fifth servo motor and the fifth servo driver, and the sixth servo motor and the sixth servo driver; control is performed according to the wind speed detected by the wind speed sensor: 1) If the wind force reaches level 8, that is, the wind speed is greater than 17m / s, the first servo driver controls the first servo motor to brake the first blade, so that it stops running and stops working; if the wind speed is less than or equal to 17m / s, the first servo driver controls the first servo motor to stop braking the first blade, so that it runs and works; 2) If the wind force reaches level 7, that is, the wind speed is greater than 13m / s, the second servo driver controls the second servo motor to brake the second blade, so that it stops running and stops working; if the wind speed is less than or equal to 13m / s, the second servo driver controls the second servo motor to stop braking the second blade, so that it runs and works; 3) If the wind speed reaches level 6, that is, the wind speed is greater than 10m / s, the third servo driver controls the third servo motor to brake the third blade, so that it stops running and stops working; if the wind speed is less than or equal to 10m / s, the third servo driver controls the third servo motor to stop braking the third blade, so that it runs and works; 4) If the wind force reaches level 5, that is, the wind speed is greater than 8m / s, the fourth servo driver controls the fourth servo motor to brake the fourth blade, so that it stops running and stops working; if the wind speed is less than or equal to 8m / s, the fourth servo driver controls the fourth servo motor to stop braking the fourth blade, so that it runs and works; 5) If the wind force reaches level 4, that is, the wind speed is greater than 5.5m / s, the fifth servo driver controls the fifth servo motor to brake the fifth blade, so that it stops running and stops working; if the wind speed is less than or equal to 5.5m / s, the fifth servo driver controls the fifth servo motor to stop braking the fifth blade, so that it runs and works; 6) If the wind force reaches level 3, that is, the wind speed is greater than 1.6m / s, the sixth servo driver controls the sixth servo motor to brake the sixth blade so that it stops running and stops working; if the wind speed is less than or equal to 1.6m / s, the sixth servo driver controls the sixth servo motor to stop braking the sixth blade and keep it running and working.

2. The method for controlling power generation of an independent power generation system using air temperature difference convection according to claim 1, characterized in that: It also includes an engine assembly frame (12), on which the generator set (11) is fixedly mounted.

3. The method for controlling power generation of an independent power generation system using air temperature difference convection according to claim 1, characterized in that: The paddle blades (4) are six in number.

4. The method for controlling power generation of an independent power generation system using air temperature difference convection according to claim 1, characterized in that: The servo motor and the servo driver (13) are installed on the right side of the blade (4).

5. The method for controlling power generation of an independent power generation system using air temperature difference convection according to claim 1, characterized in that: A drainage hole (2) is provided at the bottom of the diffusion port (3).

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