阅读说明：本技术 一种应用接触起电技术的大规模风力发电系统 (Large-scale wind power generation system applying contact electrification technology ) 是由 赵景山 张家悦 于 2020-07-13 设计创作，主要内容包括：本发明公开一种应用接触起电技术的大规模风力发电系统,包括若干个发电微单元、电路系统、机箱；发电微单元、电路系统设于机箱内部,电路系统与发电微单元相连接；发电微单元包括由上到下依次设置的上基底、上电极、下电极、下基底；上电极、所述下电极之间连接有振动薄膜层,振动薄膜层能够上下振动且上下振动的过程中分别与上电极、下电极接触；上电极、所述下电极之间还设有若干个弹性立壁；电路系统包括若干个整流电路系统和外电路系统,整流电路系统将风力激发的交流电变为直流电；外电路系统将若干个所述整流电路系统进行串联或并联。本发明应用接触起电技术的大规模风力发电系统结构简单、自重小、发电效率高,降低了发电系统成本。(The invention discloses a large-scale wind power generation system applying a contact electrification technology, which comprises a plurality of power generation micro units, a circuit system and a case; the power generation micro unit and the circuit system are arranged in the case, and the circuit system is connected with the power generation micro unit; the power generation micro unit comprises an upper substrate, an upper electrode, a lower electrode and a lower substrate which are sequentially arranged from top to bottom; a vibration film layer is connected between the upper electrode and the lower electrode, and can vibrate up and down and is respectively contacted with the upper electrode and the lower electrode in the process of vibrating up and down; a plurality of elastic vertical walls are arranged between the upper electrode and the lower electrode; the circuit system comprises a plurality of rectifying circuit systems and an external circuit system, and the rectifying circuit systems convert alternating current excited by wind power into direct current; and the external circuit system connects a plurality of the rectification circuit systems in series or in parallel. The large-scale wind power generation system applying the contact electrification technology has the advantages of simple structure, small self weight and high power generation efficiency, and reduces the cost of the power generation system.)

1. A large-scale wind power generation system using a contact electrification technique, comprising: a plurality of power generation micro units (2), a circuit system and a case (1); the power generation micro unit (2) and the circuit system are arranged in the case (1), and the circuit system is connected with the power generation micro unit (2);

the power generation micro unit (2) comprises an upper substrate (3), an upper electrode (4), a lower electrode (7) and a lower substrate (8) which are sequentially arranged from top to bottom, wherein the upper electrode (4) is in contact connection with the upper substrate (3), and the lower electrode (7) is in contact connection with the lower substrate (8); a vibration film layer (6) is connected between the upper electrode (4) and the lower electrode (7), the vibration film layer (6) can vibrate up and down, and the vibration film layer (6) is respectively contacted with the upper electrode (4) and the lower electrode (7) in the process of vibrating up and down; a plurality of elastic vertical walls (5) are arranged between the upper electrode (4) and the lower electrode (7);

the circuit system comprises a plurality of rectifying circuit systems and an external circuit system, the rectifying circuit system is connected with the power generation micro unit (2), and the rectifying circuit system converts alternating current excited by wind power into direct current; the external circuit system connects a plurality of the rectification circuit systems in series or in parallel.

2. The large-scale wind power generation system applying contact electrification technology according to claim 1, wherein the vibration film layer (6) is made of a polymer film capable of generating contact charge; the vibrating thin film layer (6) is arranged in the middle position between the upper electrode (4) and the lower electrode (7), and the included angle between the vibrating thin film layer (6) and the upper electrode (4) is 0-3 degrees.

3. The large-scale wind power generation system applying the contact electrification technology according to claim 2, wherein a plurality of elastic vertical wall groups are arranged between the upper electrode (4) and the lower electrode (7), each elastic vertical wall group is composed of the elastic vertical walls (5) which are correspondingly arranged up and down, a gap is formed between the two elastic vertical walls (5) in the same group, and the vibration film layer (6) sequentially penetrates through the gap between the two elastic vertical walls (5).

4. Large-scale wind power generation system applying contact electrification technology according to claim 3, wherein the elastic standing wall (5) is made of an elastic continuum or a spring having a smaller elastic coefficient than the upper electrode (4), the lower electrode (7).

5. Large-scale wind power generation system applying contact electrification technology according to claim 2, characterized in that the upper electrode (4), the lower electrode (7) are made of thin metal plates.

6. The large-scale wind power generation system applying the contact electrification technique according to claim 1, wherein the vibration film layer (6) is made of a metal film or a composite material, and the upper electrode (4) and the lower electrode (7) are made of a polymer film.

7. The large-scale wind power generation system applying the contact electrification technology according to claim 6, wherein two elastic vertical walls (5) are arranged between the upper electrode (4) and the lower electrode (7), the two elastic vertical walls (5) are respectively arranged at two ends of the power generation microcell (2), and the vibration film layer (6) is fixedly arranged at the middle position between the upper electrode (4) and the lower electrode (7) through the elastic vertical walls (5).

8. Large scale wind power system applying contact electrification technology according to claim 7, characterized in that the elastic standing wall (5) is made of a composite material with a porous structure or an elastic continuum or a spring.

9. Large-scale wind power generation system applying contact electrification technology according to claim 8, characterized in that the power generation microcell (2) further comprises a vortex generator (9), a vortex vibration regulator (10); the vortex vibration generator (9) is arranged on the windward side of the power generation micro unit (2) through a vortex vibration regulator (10).

10. Large-scale wind power system applying contact electrification technology according to claim 9, characterized in that the vortex vibration modifier (10) is made of a composite material or an elastic continuum or a spring with a porous structure.

11. The large-scale wind power generation system applying the contact electrification technique according to claim 1, wherein the rectification circuit comprises four rectification diodes, and the four rectification diodes form a bridge rectification circuit.

12. The large-scale wind power generation system applying the contact electrification technology according to claim 1, wherein the distance between the upper electrode (4) and the lower electrode (7) is 0.1-10 mm.

Technical Field

The invention relates to the technical field of wind power generation, in particular to a large-scale wind power generation system applying a contact electrification technology.

Background

With the development of society, the shortage of energy becomes a global problem. Wind energy has huge application potential as a clean renewable energy source, and provides a solution for the problem of energy shortage. The existing wind power generator generally adopts a mode of converting wind energy into mechanical energy and then converting the mechanical energy into electric energy through an electromagnetic generator to generate electricity. At present, large-scale wind power plants are established in regions with good wind resources in all countries of the world for wind power conversion, but the wind power generation mode has the defects of high cost, low power generation efficiency, complex maintenance process and the like.

As scientific research progresses, scientists have discovered that electrical discharges also occur when two substances come into contact with each other. If the technology can be applied to the wind power generation direction in a large scale, the cost input can be reduced, the power generation efficiency can be improved, and the maintenance pressure can be reduced. Therefore, how to design a wind power generation system which applies contact electrification technology and can be applied in a large scale for collecting and converting wind energy is a problem to be solved in the field.

Disclosure of Invention

The invention aims to provide a large-scale wind power generation system applying a contact electrification technology, which solves the technical problems in the prior art, has the advantages of simple structure, small self weight and high power generation efficiency, reduces the maintenance pressure and lowers the cost of the power generation system.

In order to achieve the purpose, the invention provides the following scheme: the invention provides a large-scale wind power generation system applying a contact electrification technology, which comprises: a plurality of power generation micro units, a circuit system and a case; the power generation micro unit and the circuit system are arranged in the case, and the circuit system is connected with the power generation micro unit;

the power generation micro unit comprises an upper substrate, an upper electrode, a lower electrode and a lower substrate which are sequentially arranged from top to bottom, wherein the upper electrode is in contact connection with the upper substrate, and the lower electrode is in contact connection with the lower substrate; a vibration film layer is connected between the upper electrode and the lower electrode and can vibrate up and down, and the vibration film layer is respectively contacted with the upper electrode and the lower electrode in the process of vibrating up and down; a plurality of elastic vertical walls are arranged between the upper electrode and the lower electrode;

the circuit system comprises a plurality of rectifier circuit systems and an external circuit system, the rectifier circuit system is connected with the power generation micro unit, and the rectifier circuit system converts alternating current excited by wind power into direct current; the external circuit system connects a plurality of the rectification circuit systems in series or in parallel.

Preferably, the vibrating thin film layer is made of a polymer film capable of generating a contact charge; the vibrating thin film layer is arranged in the middle between the upper electrode and the lower electrode, and the included angle between the vibrating thin film layer and the upper electrode is 0-3 degrees.

Preferably, a plurality of elastic vertical wall groups are arranged between the upper electrode and the lower electrode, each elastic vertical wall group is composed of elastic vertical walls which are arranged up and down correspondingly, a gap is formed between two elastic vertical walls in the same group, and the vibration film layer sequentially penetrates through the gap between the two elastic vertical walls.

Preferably, the elastic vertical wall is made of an elastic continuous body or a spring with a smaller elastic coefficient than the upper electrode and the lower electrode.

Preferably, the upper electrode and the lower electrode are made of a thin metal plate.

Preferably, the vibration film layer is made of a metal film or a composite material, and the upper electrode and the lower electrode are made of a polymer film.

Preferably, two elastic vertical walls are arranged between the upper electrode and the lower electrode, the two elastic vertical walls are respectively arranged at two ends of the power generation micro unit, and the vibration film layer is fixedly arranged in the middle between the upper electrode and the lower electrode through the elastic vertical walls.

Preferably, said elastic standing wall is made of a composite material or an elastic continuous body having a porous structure or a spring.

Preferably, the power generation micro-unit further comprises a vortex generator and a vortex regulator; the vortex vibration generator is arranged on the windward side of the power generation micro unit through a vortex vibration regulator.

Preferably, the vortex vibration regulator is made of a composite material or an elastic continuous body having a porous structure or a spring.

Preferably, the rectifier circuit comprises four rectifier diodes, and the four rectifier diodes form a bridge rectifier circuit.

Preferably, the distance between the upper electrode and the lower electrode is 0.1-10 mm.

The invention discloses the following technical effects:

the vibration film layer in the power generation micro-unit is in high-frequency contact with the upper electrode and the lower electrode up and down under the action of wind power, so that the kinetic energy of airflow is fully dissipated, higher voltage is generated, and higher current and power are output under the action of an external circuit. Meanwhile, for the power generation micro-unit comprising the vibration film layer made of the polymer film with lower rigidity, the elastic vertical walls on the upper electrode and the lower electrode effectively prevent the vibration film layer from being clamped and blocked in the movement process. And for the power generation micro-unit comprising the vibration film layer made of the metal film with higher rigidity, the elastic vertical wall at the fixed end of the power generation micro-unit is made of a composite material with a porous structure, an elastic continuous body or a spring, so that the vibration amplitude and the contact area are improved while the high-frequency vibration of the thin plate is ensured. For a power generation micro unit comprising a vortex vibration generator and a vortex vibration regulator, high-frequency vortex-induced vibration of a vibration film is realized by arranging a spoiler in the incoming flow direction; the vortex vibration regulator is used for changing the characteristic size in the flow channel under the condition of uneven wind speed, so that the Reynolds number is at a certain value, and the vibration film layer can vibrate at the same high frequency under different wind speeds to generate continuous and stable current and voltage. The large-scale wind power generation system applying the contact electrification technology has the advantages of simple structure, small self weight and high power generation efficiency, reduces the maintenance pressure, reduces the overall cost of the power generation system, provides a low-cost solution for the problem of energy shortage in the global range, and has great economic, social and environmental significance.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.

FIG. 1 is a schematic structural diagram according to a first embodiment of the present invention; wherein FIG. 1(a) is a schematic view of a large-scale wind power generation system to which a contact electrification technique is applied, FIG. 1(b) is a three-dimensional view, and FIG. 1(c) is a front view and a circuit diagram;

FIG. 2 is a schematic structural diagram according to a second embodiment of the present invention; wherein FIG. 2(a) is a schematic view of a large-scale wind power generation system to which a contact electrification technique is applied, FIG. 2(b) is a three-dimensional view, and FIG. 2(c) is a front view and a circuit diagram;

FIG. 3 is a schematic structural diagram of a third embodiment of the present invention; wherein fig. 3(a) is a schematic view of a large-scale wind power generation system to which a contact electrification technique is applied, fig. 3(b) is a three-dimensional view, and fig. 3(c) is a front view.

The device comprises a case 1, a power generation micro unit 2, an upper substrate 3, an upper electrode 4, an elastic vertical wall 5, a vibration film layer 6, a lower electrode 7, a lower substrate 8, a vortex generator 9 and a vortex vibration regulator 10.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.