阅读说明：本技术 点头鸭式波浪能发电系统及其工作方法 (Nodding duck type wave energy power generation system and working method thereof ) 是由 王志明 胡匡银 许光锐 林扬翔 缪澳华 蒋嘉林 于 2020-04-27 设计创作，主要内容包括：本发明涉及一种点头鸭式波浪能发电系统及其工作方法,该系统的系统单元包括鸭式发电装置,鸭式发电装置包括水滴型的壳体、永磁电机、内圈支架、控制皮带、输电管道,壳体贯穿设置输电管道,并两者相对摆转,永磁电机内定子线圈固定于壳体内输电管道,永磁电机内转子部分随内圈支架往复摆转时形成单向转动,内圈支架于壳体之间设有联动两者转动,并限制两者间相对转动行程的具有弹性伸缩的控制皮带。工作方法为：当壳体随波浪运动形成摆转时,壳体通过控制皮带联动内圈支架摆转,内圈支架联动永磁电机实现发电,并通过输电管道内的发电输出引线引出至壳体外部,作为电气部分的供电使用。上述结构较为简单,机械传动稳定、可靠,电能转化效率较高。(The invention relates to a nodding duck-type wave energy power generation system and a working method thereof, wherein a system unit of the system comprises a duck-type power generation device, the duck-type power generation device comprises a water drop-shaped shell, a permanent magnet motor, an inner ring bracket, a control belt and a power transmission pipeline, the shell is provided with the power transmission pipeline in a penetrating way and swings and rotates relatively, an inner stator coil of the permanent magnet motor is fixed on the power transmission pipeline in the shell, an inner rotor part of the permanent magnet motor forms unidirectional rotation when swinging and rotating reciprocally along with the inner ring bracket, and the inner ring bracket is provided with the control belt which is linked with the shell and rotates and limits the relative rotation stroke between the shell and has elastic expansion. The working method comprises the following steps: when the shell swings and rotates along with wave motion, the shell is linked with the inner ring support through the control belt, the inner ring support is linked with the permanent magnet motor to realize power generation, and the power generation output lead wire in the power transmission pipeline is led out to the outside of the shell to be used as power supply of an electric part. The structure is simple, the mechanical transmission is stable and reliable, and the electric energy conversion efficiency is high.)

1. A nodding duck-type wave energy power generation system is characterized in that a main body of the mechanical part is a duck-type power generation device (1) which comprises a water drop-shaped shell (101), a permanent magnet motor (103), an inner ring support (102) and a power transmission pipeline (105), wherein the permanent magnet motor and the inner ring support are both positioned in the shell, the power transmission pipeline penetrates through the shell, the shell is positioned and swung relative to the power transmission pipeline, the power transmission pipeline is used as a fixed support of a stator coil in the permanent magnet motor, and a power generation output lead of a stator coil is led out of the shell through the power transmission pipeline; permanent-magnet motor inner rotor part with for the one-way transmission cooperation between the inner circle support, permanent-magnet motor's rotor part follows promptly inner circle support forms unidirectional rotation when reciprocating to pendulum changes, the inner circle support for the casing is the location pendulum and changes, and is equipped with linkage both between the outer lane of inner circle support and the casing and rotates to the restriction has elastic expansion between the two relative rotation stroke the control belt controls the outer lane that belt one end is fixed in the inner circle support promptly, and the other end is fixed in inside the casing.

2. The nodding duck-type wave energy power generation system according to claim 1, characterized in that an outer ring of a rotor part of the permanent magnet motor (103) is provided with a ratchet structure, and the inner ring support (102) is provided with a pawl structure which is matched with the ratchet structure when rotating, namely the ratchet structure and the pawl structure are combined to form the one-way transmission matching.

3. The noded duck wave energy power generation system according to claim 1, wherein an electrical part is arranged in the power transmission pipeline (105), the electrical part comprises a rectifying and filtering circuit (6), a voltage stabilizing circuit (7) and an inverter circuit (8), a power generation output lead of the permanent magnet motor is connected to the rectifying and filtering circuit, the rectifying and filtering circuit is connected to the voltage stabilizing circuit, the voltage stabilizing circuit is connected with a storage battery (9) and the inverter circuit, the inverter circuit is coupled with a transformer, and the output of the transformer is used as power supply of a load.

4. The nodding duck-type wave energy power generation system according to claim 3, characterized in that the rectifying and filtering circuit (6) is a three-phase bridge-type rectifying and filtering circuit, the voltage stabilizing circuit (7) is a 12V voltage stabilizing circuit, and the transformer transforms the output voltage of the inverter circuit (8) to 220V.

5. The nodding duck-type wave energy power generation system according to claim 1, characterized in that the mechanical part comprises a platform device, the platform device comprises a horizontal telescopic part and a vertical lifting part, the main body of the horizontal telescopic part is a horizontally arranged circular support body (2), namely, one ends of two symmetrical horizontal supports (202) are hinged to a support (201) to form swinging rotation in the horizontal direction, a spring support frame (203) positioned between the two horizontal supports is integrally arranged in the middle of the support along the horizontal direction, and two sides of the spring support frame in the horizontal direction and the corresponding horizontal supports are respectively connected with a return spring (3) with elasticity positioned in the horizontal direction; the vertical lifting part comprises a vertical rod (4) and a floating pile (5), the upper end of the vertical rod is fixedly connected with the support, the lower end of the vertical rod is in telescopic fit with a trepanning column (501) arranged on the floating pile, slots (502) which are radially communicated with trepanning holes in the trepanning column are distributed in the circumferential array of the trepanning column, and the length of the slots is consistent with the telescopic stroke of the vertical rod in the trepanning column; the duck-type power generation device (1) is fixed on the horizontal support through the power transmission pipeline (105).

6. The nodding duck-type wave energy power generation system according to claim 5, characterized in that the horizontal support (202) is fixedly arranged with at least one duck-type power generation device (1) in a horizontal direction, and each duck-type power generation device is fixed to the horizontal support by sharing one transmission pipe (105).

7. The nodding duck-type wave energy power generation system according to claim 5, characterized in that any one or more combinations of electric energy storage means, electric energy conversion means and electric energy transmission means for collecting or using the electric energy of the duck-type power generation device (1) are provided in the support (201) of the bracket body (2).

8. The nodding duck wave energy power generation system according to claim 5, characterized in that the nodding duck wave energy power generation system is of a multi-machine parallel structure, i.e. more than one system unit is connected in parallel to form a power generation platform.

9. A working method of the nodding duck-type wave energy power generation system according to claim 5, characterized in that the working method of the wave energy power generation system is as follows: when a horizontal telescopic part in the platform device is in a high sea state, the symmetrical horizontal support (202) compresses the return spring (3) to form angle contraction; when the sea is low, the symmetrical horizontal supports are bounced open along with the return spring to form an angle increase; when the vertical lifting part changes along with the height of the sea level, the upright stanchion (4) stretches relative to the floating pile (5) to keep the duck-type power generation device on the working water surface; when the shell of the duck-type power generation device swings along with wave motion, the shell swings through the inner ring support (102) in a linkage mode through the control belt (104), the inner ring support is in linkage mode, the rotor part of the permanent magnet motor (103) rotates and forms magnetic induction line cutting with the stator coil part, induced electromotive force is generated, power generation is achieved, and finally the generated power is led out to the outside of the shell (1) through a power generation output lead in the power transmission pipeline (105) and used as power supply of an external load.

10. The working method of the nodding duck-type wave energy power generation system according to claim 9, characterized in that when the housing (1) is linked with the inner ring support (102) through a control belt (104) to swing, the control belt is elastically deformed in a telescopic manner under the action of the swing resistance and the gravity inertia force of the inner ring support, and when the control belt is elongated, the control belt forms a pulling force on the housing to provide a swing reset force for the housing, so that the purpose of limiting the swing of the housing is achieved.

Technical Field

The invention relates to the field of ocean power generation, in particular to a nodding duck wave power generation system and a working method thereof.

Background

The existing wave energy conversion into electric energy is mostly based on two principles: one is that the object is acted by wave force to generate up-down floating and left-right swinging movement, and then converted into mechanical energy and electric energy; the other is to convert the kinetic energy of the waves into the potential energy of the waves through a high-low ramp and then convert the potential energy into mechanical energy and electric energy. The existing duck-type power generation device adopts the first principle, but the existing duck-type power generation device mostly adopts a hydraulic drive hydraulic cylinder piston to reciprocate, hydraulic energy converted into hydraulic oil impacts a hydraulic motor to rotate in a single direction, and a rotating motor is driven to generate power. The main defects of the above structure are that the structure is complex, the cost is high, the mechanical error is large, the capacity conversion efficiency is not high, the integral structure is fixed and cannot be adjusted, the sea wave impact resistance and the sea water corrosion resistance are poor, and the service life is relatively short. Therefore, the existing duck wave power generation device needs to be improved.

Disclosure of Invention

In order to overcome the defects, the invention aims to provide a nodding duck wave energy power generation system and a working method thereof for the field, so that the technical problems of complex structure, higher cost, larger mechanical error, lower conversion efficiency, poorer sea wave impact resistance and seawater corrosion resistance and shorter service life of the conventional similar device or system are solved. The purpose is realized by the following technical scheme.

A nodding duck-type wave energy power generation system is characterized in that a main body of the mechanical part is a duck-type power generation device, the duck-type power generation device comprises a water drop-shaped shell, a permanent magnet motor, an inner ring support and a power transmission pipeline, the permanent magnet motor and the inner ring support are both positioned in the shell, the power transmission pipeline penetrates through the shell, the shell is positioned and swung relative to the power transmission pipeline, the power transmission pipeline is used as a fixed support of a stator coil in the permanent magnet motor, and a power generation output lead of the stator coil is led out of the shell from the power transmission pipeline; permanent-magnet motor inner rotor part with for the one-way transmission cooperation between the inner circle support, permanent-magnet motor's rotor part follows promptly inner circle support forms unidirectional rotation when reciprocating to pendulum changes, the inner circle support for the casing is the location pendulum and changes, and is equipped with linkage both between the outer lane of inner circle support and the casing and rotates to the control belt that has elastic expansion of restriction relative rotation stroke between the two, control belt one end is fixed in the outer lane of inner circle support, and the other end is fixed in inside the casing. Through the structure, the rotation power generation of the permanent magnet motor can be realized by swinging the shell, the mechanical structure is relatively simple, the energy conversion efficiency is higher, and the better power generation effect is realized. And the control belt plays the effect of pendulum commentaries on classics buffering and spacing to the casing, through the tensile deformation of control belt, effectively offsets the too big impact of wave to prevent that the casing from appearing the problem that the dislocation pendulum changes, topples the inefficacy, guarantee duck formula power generation facility job stabilization nature and reliability.

The outer ring of the rotor part of the permanent magnet motor is provided with a ratchet wheel structure, and the inner ring support is provided with a pawl structure matched with the ratchet wheel structure during rotation, namely the ratchet wheel structure and the pawl structure are combined to form the one-way transmission matching. The structure is an embodiment structure which is used for driving the permanent magnet motor to rotate in a unidirectional way by the reciprocating swing of the inner ring support.

The power transmission pipeline is internally provided with an electric part, the electric part comprises a rectification filter circuit, a voltage stabilizing circuit and an inverter circuit, a power generation output lead of the permanent magnet motor is connected to the rectification filter circuit, the rectification filter circuit is connected to the voltage stabilizing circuit, the voltage stabilizing circuit is connected with a storage battery and the inverter circuit, the inverter circuit is coupled with a transformer, and the output of the transformer is used as the power supply of a load. Through this circuit structure, realize reliable, stable electric energy output.

The rectification filter circuit is a three-phase bridge rectification filter circuit, the voltage stabilizing circuit is a 12V voltage stabilizing circuit, and the transformer transforms the output voltage of the inverter circuit to 220V. The structure is taken as an implementation structure of a specific circuit.

The mechanical part comprises a platform device, the platform device comprises a horizontal telescopic part and a vertical lifting part, the main body of the horizontal telescopic part is a horizontally arranged circular support body, namely, one end of each of two symmetrical horizontal supports is hinged to the support to form swinging rotation in the horizontal direction, the middle part of the support is integrally provided with a spring support frame positioned between the two horizontal supports along the horizontal direction, and two sides of the spring support frame in the horizontal direction and the corresponding horizontal supports are respectively connected with a return spring with elasticity positioned in the horizontal direction; the vertical lifting part comprises a vertical rod and a floating pile, the upper end of the vertical rod is fixedly connected with the support, the lower end of the vertical rod is in telescopic fit with a trepanning column arranged on the floating pile, slots which are radially communicated with trepanning holes in the trepanning column are distributed in the circumferential array of the trepanning column, and the length of the slots is consistent with the telescopic stroke of the vertical rod in the trepanning column; the duck-type power generation device is fixed on the horizontal support through the power transmission pipeline. Through the structure, the wave energy power generation system realizes self-adaptive adjustment of the wave head-on angle and the height of the working water surface along with the height of the sea condition and the height of the sea level, so that the energy conversion efficiency of the power generation system and the stability and the safety of the whole work are improved, the sea wave impact resistance and the sea water corrosion resistance are better, the maintenance cost is effectively reduced, and the service life is prolonged.

The horizontal support is fixedly provided with at least one duck type power generation device in a horizontal direction, and each duck type power generation device is fixed on the horizontal support through one shared power transmission pipeline. With this structure, the power generation efficiency is improved.

Any one or more combinations of an electric energy storage device, an electric energy conversion device and an electric energy transmission device for collecting or using the electric energy of the duck-type power generation device are arranged in the support of the support body. Through this structure, the duck formula power generation facility electric energy of being convenient for effectively exports the use.

The wave energy power generation system is of a multi-machine parallel structure, namely, more than one system unit is connected in parallel to form a power generation platform. Through this structure, realize better electricity generation application.

The working method of the wave energy power generation system comprises the following steps: when the horizontal telescopic part in the platform device is in a high sea state, the symmetrical horizontal supports compress the return spring to form angle contraction; when the sea is low, the symmetrical horizontal supports are bounced open along with the return spring to form an angle increase; when the vertical lifting part changes along with the height of the sea level, the upright posts stretch relative to the floating piles to keep the duck-type power generation device on the working water surface; when the shell of the duck-type power generation device swings and rotates along with wave motion, the shell is linked with the inner ring support through the control belt, the inner ring support is linked with the rotor part of the permanent magnet motor to rotate, magnetic induction wire cutting is formed between the rotor part and the stator coil part, induced electromotive force is generated, power generation is achieved, and finally the power generation output lead in the power transmission pipeline is led out to the outside of the shell to be used as power supply of an external load.

Work as the casing passes through the linkage of control belt the inner circle support pendulum when changeing under the effect of inner circle support pendulum resistance and gravity inertial force, the control belt forms elastic stretching deformation, when control belt extension, right the casing forms the pulling force, for the casing provides pendulum commentaries on classics reset force, realizes the casing pendulum and changes spacing purpose. Through this mode, effectively prevent that the casing from shifting to rotate, the problem of the inefficacy that topples appears.

The invention has simple integral structure, stable and reliable mechanical transmission and higher electric energy conversion efficiency, and has the functions of self-adapting to sea conditions and sea level, thereby effectively improving the sea wave impact resistance and the sea water corrosion resistance, reducing the maintenance cost, prolonging the service life, and being suitable for being used as a power generation system for ocean power generation or the structural improvement of the similar power generation system.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the present invention.

FIG. 2 is a schematic diagram of the internal structure of the duck-type power generation device of the present invention.

Fig. 3 is a schematic view of the partially disassembled structure of fig. 1.

Fig. 4 is a schematic circuit diagram of the electrical portion of the present invention.

Fig. 5 is a reference diagram of a multi-machine parallel circuit of the present invention.

The sequence numbers and names in the figure are: 1. duck formula power generation facility, 101, casing, 1011, projection, 102, inner circle support, 103, permanent-magnet machine, 104, control belt, 105, transmission pipe way, 2, support body, 201, support, 202, horizontal stand, 203, spring support frame, 3, reset spring, 4, pole setting, 5, the floating pile, 501, the casing string, 502, fluting, 503, trepanning, 6, rectification filter circuit, 7, voltage stabilizing circuit, 8, inverter circuit, 9, battery.

Detailed Description

The invention will now be further described with reference to the accompanying drawings.

As shown in fig. 1-3, the system unit of the nodding duck wave energy power generation system comprises a mechanical part, wherein the mechanical part comprises a duck power generation device 1 and a platform device. The duck-type power generation device comprises a water drop type shell 101, a permanent magnet motor 103, an inner ring support 102, a control belt 104 and a power transmission pipeline 105, wherein the permanent magnet motor, the inner ring support and the control belt are all located in the shell. The power transmission pipeline runs through the shell, the shell is positioned and swung relative to the power transmission pipeline to form a nodding duck-shaped structure, and a corresponding rotary sealing piece is arranged at the position of the positioning and swinging. And a stator coil in the permanent magnet motor is sleeved and fixed on the power transmission pipeline of the shell, and a power generation output lead of the stator coil is led out of the shell from the power transmission pipeline. The permanent magnet motor rotor part is in one-way transmission fit with the inner ring support, namely, a ratchet structure is arranged on the outer ring of the permanent magnet motor rotor part, a pawl structure matched with the ratchet structure during rotation is arranged on the inner ring support, and the ratchet structure and the pawl structure form one-way transmission fit to realize that the rotor part of the permanent magnet motor rotates in one way along with the inner ring support during reciprocating swing. The inner circle support is the location for the casing and swings changeing, and is equipped with the control belt that has elastic expansion that limits relative rotation stroke between the two between the outer lane of inner circle support and the casing is inside, specifically is: one end of the control belt is fixed on the outer ring of the inner ring support, and the other end of the control belt is wound and connected with three quarters of the inner ring support along the outer ring of the inner ring support and then fixed with the convex column in the shell, namely the telescopic deformation stroke of the control belt is matched with the swinging stroke of the shell, and the purpose of limiting the swinging stroke of the shell is achieved.

An electrical part is arranged in the power transmission pipeline 105, and as shown in fig. 4, the electrical part comprises a rectifying and filtering circuit 6, a voltage stabilizing circuit 7 and an inverter circuit 8, a power generation output lead of the permanent magnet motor is connected to the rectifying and filtering circuit, the rectifying and filtering circuit is connected to the voltage stabilizing circuit, the voltage stabilizing circuit is connected with a storage battery 9 and the inverter circuit, the inverter circuit is coupled to a transformer, and the output of the transformer is used as the power supply of a load. The rectifying and filtering circuit in fig. 3 is a three-phase bridge rectifying and filtering circuit, the voltage stabilizing circuit is a 12V voltage stabilizing circuit, and the transformer transforms the output voltage of the inverter circuit to 220V. The specific working principle is as follows: the rectifying and filtering circuit receives the three-phase induced current, and the diodes in the rectifying circuit are periodically switched on and off, so that the voltage is changed into single-phase pulsating voltage, and the current and the waveform only have a positive half period. The current transmitted from the duck-type power generation device is led into the rectifying and filtering circuit for filtering, and the alternating current with different phases is combed into direct current and then is connected with the voltage stabilizing circuit. The voltage stabilizing circuit uniformly converts the electric energy with different sizes at different moments into required set values for storage and conversion. Because the electric energy that wave energy was gathered at different moments is big or small different, can't collect and store, so need through above-mentioned voltage stabilizing circuit, the voltage that will be disorderly different stabilizes into required setting value voltage and stores and changes. The inverter circuit is opposite to the rectifier circuit, when electric energy passes through the inverter circuit, direct current is changed into alternating current, then voltage is increased to 220V through the transformer and is supplied to a load, and excessive electric energy is stored in the storage battery. The inverter circuit is driven by a multivibrator consisting of BG2 and BG3 and is driven by BG1 and BG4 to control BG6 and BG7 to work. The oscillating circuit is powered by a voltage stabilizing power supply of BG5 and DW group, so that the output frequency is stable. The inverter circuit is coupled with the transformer to realize electric energy output.

The platform device of the wave energy power generation system comprises a horizontal telescopic part and a vertical lifting part, wherein the main body of the horizontal telescopic part is a support body 2 of a compass type which is horizontally arranged, one end of each of two symmetrical horizontal supports 202 is hinged to a support 201 to form swinging in the horizontal direction, a spring support frame 203 which is positioned between the two horizontal supports is integrally arranged in the middle of the support along the horizontal direction, and two sides of the spring support frame in the horizontal direction and the corresponding horizontal supports are respectively connected with a reset spring 3 of which the elastic force is positioned in the horizontal direction. The vertical lifting part comprises a vertical rod 4 and a floating pile 5, the upper end of the vertical rod is fixedly connected with a support, the lower end of the vertical rod is in telescopic fit with a trepanning column 501 arranged on the floating pile, namely, a trepanning 503 is arranged in the trepanning column, slots 502 which are radially communicated with the trepanning are distributed in the trepanning column along the circumferential array, and the length of the slots is consistent with the telescopic stroke of the vertical rod in the trepanning column. The duck-type power generation device 1 is fixed on a horizontal bracket along the horizontal direction through two ends of a power transmission pipeline 105, and a system unit of the wave energy power generation system is formed.

In order to improve the power generation effect, the horizontal bracket 202 may also fix a row of the duck-type power generation devices 1 along the horizontal direction, and each duck-type power generation device is fixed on the horizontal bracket by sharing one power transmission pipeline 105.

In order to facilitate the application of the duck-type power generation device, any one or more combinations of an electric energy storage device, an electric energy conversion device and an electric energy transmission device for collecting or using the electric energy of the duck-type power generation device 1 are arranged in the support 201 of the support body 2.

The wave energy power generation system can also be designed into a multi-machine parallel structure, namely, more than one system unit is connected in parallel to form a power generation platform. As shown in fig. 5, a circuit diagram of a system with multiple parallel circuits is provided as an implementation reference.

The working method of the wave energy power generation system comprises the following steps: when the horizontal telescopic part in the platform device is under high sea conditions, the symmetrical horizontal support 202 compresses the return spring 3 to form angle contraction, so that the aim of seawater impact resistance is fulfilled, and an effective protection effect is achieved. When the sea is low, the symmetrical horizontal supports are bounced open along with the return spring to form an angle which is increased, so that the conversion efficiency of wave energy is improved; when the vertical lifting part changes along with the height of the sea level, the upright stanchion 4 stretches relative to the floating pile 5, so that the duck-type power generation device 1 is kept on the working water surface, and the reliability and stability of the work are ensured. When the shell 1 of the duck-type power generation device swings along with wave motion, the shell is linked with the inner ring support 102 through the control belt 104, the inner ring support is linked with the rotor part of the permanent magnet motor 103 to rotate, magnetic induction wire cutting is formed between the rotor part and the stator coil part to generate induced electromotive force, power generation is achieved, and finally the induced electromotive force is led out to the outside of the shell through a power generation output lead in the power transmission pipeline 105 to be used as power supply of the electric part or an external load.

When the shell 1 is linked with the inner ring support 102 to swing through the control belt 104, the control belt is elastically deformed under the action of the swing resistance and the gravity inertia force of the inner ring support. For example, when the wave strikes the casing too much, the casing pendulum angle is great in the twinkling of an eye, and the inner circle support is not at once with the commentaries on classics because of the effect of pendulum resistance and gravity inertia power down, so control belt when this is stretched, forms reverse pulling force to the casing, provides pendulum reset force (spacing pulling force) for the casing promptly to prevent that the casing from pendulum to cross, guarantee reliable, stable when the casing pendulum changes, the inefficacy of being difficult for toppling.

The above description is intended to illustrate the technical means of the present invention, and not to limit the technical scope of the present invention. Obvious modifications or alterations to the present invention in combination with the prior art knowledge will be apparent to those skilled in the art and fall within the scope of the appended claims.