KR102038910B1 - Hybrid type generating system for solar cell generating and piezoelectric generating - Google Patents

Abstract

The present invention relates to a hybrid type power generation control method and a hybrid type power generation system that combines a power generation function using a solar cell of a leaf and a power generation function using a piezoelectric device operating by shaking of a leaf, and a conventional fan or propeller. Breaking away from the power generation method using the rotation of the propeller, in the present invention produces electricity in the unit solar cell, by applying a piezoelectric device (element that generates pressure as power) to detect fine shaking in the breeze, twig leaves It can produce electricity by converting the movement of the gas into electric energy. Also, it is equipped with a gas shock absorber (gas buffer) to prevent fatigue breakdown even in the severe shaking of the leaves. You can also use the absorber to shake the leaves to move them forward have. In addition, when there is only sunlight and there is no wind, only the solar cell of the leaf operates to produce electricity, but when sunlight and wind are simultaneously, the solar cell and the piezoelectric element may be used to produce electricity by mixing (hybrid). That is, during the day, solar cell power generation and piezoelectric power generation can be generated by mixing, and at night, piezoelectric power generation and street lighting are possible.

Description

HYBRID TYPE GENERATING SYSTEM FOR SOLAR CELL GENERATING AND PIEZOELECTRIC GENERATING} which combines the power generation function using solar cell of leaf and the power generation function using piezoelectric device operated by shaking of leaf.

The present invention relates to a hybrid type power generation system that combines a power generation function using a solar cell of the leaf and a power generation function using a piezoelectric device operated by the shaking of the leaves, and more specifically, using a solar cell of the leaf. It uses the piezoelectric device that functions or operates by the shaking of the leaves, so that the power generation function can be combined with the solar cell and the piezoelectric device during the day, and the piezoelectric device is used during the night. In the event of severe shaking of the leaves due to strong winds or typhoons, the gas shock absorber firmly holds the branches so that fatigue breakage does not occur, and if there is no wind, use the gas shock absorber. Foot using solar cell of leaf which can shake leaf and start up It relates to a hybrid-type power generation system, which combine the power generation function using a piezoelectric device that works by a shake of the function and leaves.

In general, the wind power generator is installed in an area where high winds are easily collected, such as highlands or coasts, and is formed to generate electricity from rotation of a propeller mounted at an upper end of a body.

Wind turbines are classified into vertical and horizontal types according to the connection type of the rotor shaft.

Conventional rotor-type wind turbines have various mechanical components such as momentum converters, power trains, power converters, and controllers that absorb wind energy in the process of converting the mechanical energy of the wind into electrical energy. It is provided.

However, such a conventional wind power generator is not easy to spread because of its basic appearance, that is, bulky and relatively expensive, and it is necessary to rotate the generator at a constant speed regardless of the wind speed, so that the tilt of the windmill blade according to the wind speed. You need to add extra controls, such as changing the.

In addition, the above-mentioned conventional wind power generator is mostly a rotor type, and in order to produce the necessary electricity, a support of 10 m or more from the ground must be installed, and a wind of a certain wind speed or more must be secured, and installation conditions are very limited, and noise is generated. In the past, it has been tried to generate electric power by installing separate solar panels. However, the efficiency is low and installation cost is high. In case of poor design, it is unsuitable for the climate situation in Korea.

In addition, if the wind speed is too weak or excessive, it is not possible to generate power smoothly, and various kinds of mechanical elements are combined, so that maintenance is not easy, and problems such as noise due to rotor rotation are not completely solved.

On the other hand, solar energy is efficiently collected by moving heat engines and generators to make electrical energy. Solar energy is a solar energy source that causes wind or weather in the atmosphere that causes water to move in a broad sense. Both hydro and wind power can be referred to as solar power, but most of them refer to the direct generation of solar power.

There is a method of using solar cells in the solar power generation method, which is attached to satellites and space probes and plays an important function of supplying power by itself, but the method of using solar cells is used in large-scale places such as desert areas where solar radiation is heavy. Although it has been built and tested, its efficiency is still low, so it has not reached the point of full practical use.

Conventional photovoltaic power generation method using a conventional opaque solar cell is mostly a method of changing the incident light into electricity after aligning the solar cells in a row on a stationary plate.

Such a method has a problem in that a large installation area is required or the installed solar cell back sheet cannot be used.

At present, there is an urgent need for a new concept of power generation system which has the advantages of the solar power generation method and the wind power generator but solves the disadvantages.

Korean Patent Publication No. 10-2012-0006009

The present invention is a power generation function using the solar cell of the leaf or by using a piezoelectric device using a piezoelectric device operating by shaking the leaves, the daytime power generation using the solar cell and the piezoelectric device together at night and The piezoelectric device operated by the shaking of the leaves can be used to control the power generation function.

In addition, the present invention in the case of severe shaking of the leaves due to strong winds or typhoons to ensure that the gas shock absorber firmly hold the branches so that fatigue failure does not occur, as well as use the gas shock absorber when there is no wind at all To shake the leaves so that they can be activated early.

In addition, since the artificial tree is installed in the present invention, it is easy to install and does not need water or fertilizer to grow the tree, and does not need cleaning due to fallen leaves in autumn. It is to be able to convert the color of the branches to suit the four seasons.

In addition, the present invention is to install a wireless charging unit for the electric vehicle in the energy storage device, or to configure the electric vehicle to be automatically charged when the electric charge is on the wireless charging pad to utilize the electricity stored in the energy storage device in the electric vehicle.

The present invention provides a hybrid type power generation control method and hybrid type power generation system that combines the power generation function using the solar cell of the leaf and the power generation function using the piezoelectric device operated by the shaking of the leaf.

Hybrid type power generation system that combines the power generation function using the solar cell of the leaves of the present invention and the power generation function using a piezoelectric device operated by the shaking of the leaves, artificial wood of carbon composite material having a plurality of leaves on the branches ; A unit solar cell installed on the leaves to produce electricity using sunlight; A piezoelectric device installed at a connection portion of the branch and the leaf to generate electricity by using the fine movement of the leaf moving by a breeze; A power converter (inverter) for converting direct current produced by the unit solar cell and the piezoelectric device into alternating current; And an electrical storage device for converting and storing the alternating current converted by the power converter into direct current.

The unit solar cell may be configured of any one of a dye-sensitized solar cell or a flexible solar cell.

The branch is provided with a gas shock absorber is installed in the tree branch so that fatigue destruction does not occur even in the severe shaking of the leaves, and when the wind is not at all, the leaf is shaken and started by using the gas absorber. The piezoelectric device in the leaves can be used to produce electricity.

If there is only sunlight and no wind, only the unit solar cell of the leaf operates to produce electricity, but when sunlight and wind are simultaneously, the unit solar cell and the piezoelectric device may be used to produce electricity by mixing. .

In order to utilize the electric power of the electric storage device in an electric vehicle, the artificial tree wireless charging unit may be installed in the artificial tree, or may be configured to automatically charge the electric vehicle when it comes up over the wireless charging pad.

On the other hand, the present invention is a unit of the solar cell is installed on the leaves to produce electricity using sunlight and the connection portion of the branches and the leaves to produce electricity by using the fine movement of the leaves moving by the breeze In a hybrid type power generation system having a piezoelectric device is installed in, the first step of producing electricity in the unit solar cell and the piezoelectric device; A second step of converting direct current (DC) produced by the unit solar cell and the piezoelectric device into alternating current (AC) in a power converter (inverter); A third step of storing the alternating current converted by the power converter in an electrical storage device; A fourth step of judging whether the current is excessively shaken by the leaves due to strong wind or typhoon; And if overcurrent and overvoltage do not occur, continue to the first step, and if overcurrent and overvoltage occur, operating a gas shock absorber to perform a safe mode so that fatigue failure does not occur even under severe shaking of the leaves. The fifth step; It provides a hybrid type power generation control method having a power generation function using a power generation function using the unit solar cell of the leaf and a piezoelectric device operating by shaking the leaves.

As described above, in order to escape from the conventional method using the rotation of the fan (propeller) or propeller (propeller), in the present invention to produce electricity in a unit solar cell, a piezoelectric device (element generating pressure as power) It can detect the small shaking in the breeze and convert the movement of twig leaves into the electric energy to produce electricity, and it can be connected to the grid in a small area to produce the small power efficiently.

In addition, the leaves may be composed of a dye-sensitized solar cell or a flexible solar cell, the waterproof and anti-corrosion technology is applied, rain water does not penetrate, there is an effect that does not corrode even long-term use.

It is also equipped with a gas absorber (gas buffer) to prevent fatigue from aggravating the leaves, and when there is no wind, by using the gas absorber to shake the leaves and start them from the leaves. You can also make progress.

In addition, branches and artificial wood are made of an unbroken carbon composite material to prevent breakage or damage in strong winds or typhoons, and the safety sensor stops the power generation mode during strong winds or typhoons to promptly damage or break the system. Can be protected.

In addition, after producing a small power by using a piezoelectric device, the power can be stored in the electrical storage device, by converting the stored power in the power conversion device, for example, the converter and inverter after power-up (380V) 220V) can be supplied to the customer, and can also be used as a power generator for mountaintops and shelters.

In addition, the present invention may be used to turn on the street lamp at night by using the power generation of the leaves while providing a shade in the existing mountaintop, night mountain, campsite, other places where the shade is necessary, for example, desert, field, beach, city park. .

In addition, when there is only sunlight and there is no wind, only the solar cell of the leaf operates to produce electricity, but when sunlight and wind are simultaneously, the solar cell and the piezoelectric element may be used to produce electricity by mixing (hybrid). That is, during the day, solar cell power generation and piezoelectric power generation can be generated by mixing, and at night, piezoelectric power generation and street lighting are possible.

In addition, the present invention is because the artificial tree is installed, it is easy to construct and install, do not need water or fertilizer to grow the tree, do not need cleaning due to the leaves in autumn, fall in autumn color to adjust the color to fall color You can also change the color of the leaves to match the four seasons by painting insensitive colors.

In addition, the present invention can install the wireless charging unit for the electric vehicle in the energy storage device, or can be automatically charged when the electric vehicle is on the wireless charging pad to utilize the electricity stored in the energy storage device in the electric vehicle.

1 is a block diagram of a hybrid type power generation system of the present invention
2A and 2B are diagrams illustrating unit solar cells and piezoelectric devices in the hybrid type power generation system of the present invention, illustrating the plunger before and after operation.
3 is a view for explaining the concept of a dye-sensitized solar cell
4 is a view for explaining a configuration in which the electric vehicle is automatically charged when raised over the wireless charging pad
5 is a flowchart illustrating a hybrid type power generation control method of the present invention.

Hereinafter, with reference to the accompanying drawings, a hybrid type power generation control method and a hybrid type power generation system that combine a power generation function using a solar cell of a leaf according to the present invention and a power generation function using a piezoelectric device operated by leaf shake. Explain.

1 is a configuration diagram of a hybrid type power generation system of the present invention, Figures 2a, 2b is a configuration diagram showing a unit solar cell and a piezoelectric device in the hybrid type power generation system of the present invention, illustrating the before and after operation of the plunger 3 is a view for explaining the concept of the dye-sensitized solar cell, and FIG. 4 is a view for explaining a configuration that is automatically charged when the electric vehicle is raised over the wireless charging pad.

The hybrid type power generation system 100 that combines the power generation function using the solar cell of the leaf of the present invention and the power generation function using the piezoelectric device operated by the shaking of the leaves, has a plurality of leaves 113 on the branches 111. The artificial wood 110 of the carbon composite material is provided; A plurality of unit solar cells 120 installed in the leaves 113 to produce electricity using sunlight; A piezoelectric device 130 installed at a connection portion of the branches 111 and the leaves 113 to produce electricity by using the fine motion of the leaves 113 moving by a breeze; A power converter (inverter) 140 for converting direct current produced by the unit solar cell 120 and the piezoelectric device 130 into alternating current; And an electrical storage device 150 that converts and stores the alternating current converted by the power converter 140 into direct current.

The street lamp 115 may be installed at an upper portion of the artificial tree 110. The street light 115 may use electricity stored in the electrical storage device 150.

The unit solar cell 120 may be configured of any one of a dye-sensitized solar cell or a flexible solar cell.

The unit solar cell 120 may be separately installed in the leaf 113 or the leaf 113 itself may be configured as a unit solar cell.

Referring to FIG. 3, the dye-sensitized solar cell may use a method of painting a transparent dye-sensitized solar cell Ge-Si compound solution on a leaf, and the like. This is a case where a dye having an absorbing function is combined with a polymer and applied to a solar cell. Dye-sensitized solar cell is based on fuel polymer for solar absorption, semiconductor oxide with wide band gap acting as n-type semiconductor, electrolyte acting as p-type semiconductor, counter electrode for catalyst and transparent electrode for solar transmission . The fundamental difference from the conventional solar cell is that the solar energy absorption process and the separation / transfer of the electron-hole phase formed in this process occur simultaneously in the semiconductor due to the potential difference inside the battery. On the other hand, in the dye-sensitized solar cell, the absorption of solar energy is in charge of the dye, and the separation / transfer of the generated electrons is performed in the semiconductor nanoparticles in a manner that is diffused by the difference in electron concentration.

The dye-sensitized solar cell has a sandwich structure of a transparent substrate, and the inside of the cell is coated with a monolayer on the surface of the porous TiO ₂ and TiO ₂ particles composed of a transparent electrode coated on a projection substrate and nanoparticles adhered thereon. It consists of dye polymer, oxidation / reduction electrolyte solution filling a space of 30-100㎛ thickness between two electrodes, and counter electrode for reducing electrolyte. When sunlight is incident on the cell, the photons passing through the transparent substrate and the transparent electrode are absorbed by the dye polymer. The dye generates electrons when excited by solar absorption, and the generated electrons are transferred to the TiO ₂ conduction band and flow to the external circuit through the transparent electrode to transfer electrical energy.

The sunlight reaches the dye-sensitized solar cell, and electrons move from the (-) pole to the (+) pole to generate electricity by the movement of ions in the cell, and the electricity is described below with the first connector 114 and the first electrode. Through the electrical circuit of the piezoelectric device 130 through the two connectors 136, the generated micro-power can be transferred to the power conversion device (inverter) 140 without generating a reverse voltage, and then stored in the electrical storage device 150. have.

The electrode of the organic-inorganic hybrid dye-sensitized solar cell applying the photosynthesis principle, such as a leaf, is a 20 nm-sized anatase phase TiO ₂ transparent electrode, which can have a band gap (3.2 eV).

Dye can be a silane system with efficiency similar to that of ruthenium, and I- (iodine) serves as an electrolyte to provide electrons to dye molecules, and oxidized I3- receives electrons reaching the counter electrode and is converted back to I-. Reduced. LiI + I2 + MPN + (PVDF-HFP) electrolyte with high photoelectric conversion efficiency is excellent in all properties. Dye-sensitized cells have cell efficiencies of less than 14% and perovskite structures of less than 23%.

The first connector 114 may be installed below the leaf 113, and the second connector 136 may also be installed in the piezoelectric device 130 to be detachably connected to the first connector 114.

The first connector 114 and the second connector 136 is detachably connected, and is configured to replace the leaf 113 with a new one.

The piezoelectric device 130 is a built-in piezoelectric power generating device for converting the actuator up, down, left and right kinetic energy into piezoelectric energy while the leaves of the solar cell moves in the breeze, and has a reverse flow prevention diode.

The piezoelectric device 130 includes a housing 131 serving as a casing; A spring 132 installed in the housing 131; Piezoelectric elements 133 disposed above and below the spring 132; A pressure plate 134 for pressing the piezoelectric element 133; An actuator 135 rotatably installed on an upper portion of the housing 131 and having a hinge 135a; A plunger 136 which presses the pressure plate 134 while being pressed downward when the actuator 135 is rotated; The second connector 137 is detachable from the first connector 114.

The piezoelectric element 133 represents a piezoelectric phenomenon and is also called a piezoelectric element. Quartz, tourmaline, roselle salt, and the like are used as piezoelectric element materials. Recently, artificial crystals such as barium titanate, ammonium dihydrogen phosphate, and ethylene titanate diamine are also excellent in piezoelectricity.

Actuator 135 can be rotated finely about the hinge (135a) finely, and configured to rotate only in a certain angle range, pressurizing the plunger 136 while rotating, the plunger 136 is a piezoelectric element 133 is pressed downward. Here, the actuator 135 rotates about the hinge 135a, but rotates in the front-rear direction as well as the left and right directions.

The spring 132 provides elastic force such that the pressure plate 134 always elastically contacts the plunger 136.

A gas shock absorber 160 is installed in the tree branch 111 so that fatigue destruction does not occur even in the severe shaking of the leaves. When there is no wind, the gas 113 is shaken using the gas shock absorber 160. It can be activated to produce electricity in the piezoelectric device 130 of the leaf 113.

If there is only sunlight and no wind, only the unit solar cell 120 of the leaf 113 operates to produce electricity. However, when sunlight and wind are simultaneously used, the solar cell 120 and the piezoelectric element 130 are used. To produce electricity by mixing.

In order to utilize the electric power of the electric storage device 150 in an electric vehicle, an artificial vehicle wireless charging unit 170 is installed on the artificial tree 110 (see FIG. 1), or the electric vehicle 10 is placed on the wireless charging pad 117. It may be configured to any one of the automatic charging when it comes up (see Figure 4).

Meanwhile, the present invention provides a hybrid type power generation control method having a power generation function using the solar cell 120 of the leaf 113 and a power generation function using the piezoelectric device 130 operated by shaking the leaf 113. .

5 is a flowchart illustrating a hybrid type power generation control method of the present invention.

Referring to FIG. 5, the hybrid type power generation control method of the present invention includes a unit solar cell 120 installed in a leaf 112 to produce electricity using sunlight, and a leaf 113 moving by a breeze. In a hybrid type power generation system 100 having a piezoelectric device 130 installed at a connection portion of a branch 111 and a leaf 113 to produce electricity using fine movement of a plurality of unit solar cells ( 120 and the first step (S110) for producing electricity in the piezoelectric device 130; A second step (S120) of converting direct current (DC) produced by the unit solar cell 120 and the piezoelectric device 130 into alternating current (AC) in the power converter (inverter) 140; A third step (S130) of converting the alternating current converted by the power converter 140 into a direct current and storing it in the electrical storage device 150; A fourth step (S140) of determining whether the leaf 113 is excessively shaken due to a strong wind or a typhoon to generate an overcurrent and an overvoltage (whether creep is generated); And if the overcurrent and the overvoltage does not occur, continue to the first step (S110), if the overcurrent and overvoltage occurs, by operating the gas shock absorber 160, fatigue breakdown occurs even under severe shaking of the leaf 113 Performing a safe mode so as not to perform a fifth step (S150); A sixth step S160 in which the leaf 113 is excessively shaken to determine whether the creep phenomenon continues; And if the creep phenomenon continues to move to a previous step, and if there is no creep phenomenon includes a seventh step (S170) for producing electricity in the plurality of unit solar cell 120 and the piezoelectric device 130 again.

In the safety mode, when the excessively creep (CREEP) state of the leaf 113, the self-diagnosis mode (15m / s) to operate in the safety mode (20 ~ 30m / s per second) while automatically monitoring by the preset value ) And safety mode operation, 30m / s power generation stop (automatic shut down, in case of rain, short circuit, safety cut off due to short circuit monitoring with possibility of short circuit).

On the other hand, when looking at the power generation (압 電) by the operation of the piezoelectric device 130, when the leaf 113 is shaken by the breeze, the actuator 135 swings back and forth or left and right to start, the actuator 135 as the shaking gradually increases Pushes the plunger 136 downward, and the plunger 136 presses the pressure plate 134 downward, and the pressure plate 134 presses the piezoelectric element 133 to produce electricity in the piezoelectric element 133. .

Since the electricity produced by the piezoelectric device 130 is a direct current, the power converter (inverter) 140 stores the electricity in the electrical storage device 150 after converting the direct current into alternating current. The surplus power can be transmitted through the power converter connected to the used power, and can be turned on and off depending on the lighting of the street lamp and the illumination and timer setting.

Electricity of the electrical storage device 150 may be utilized for the street light 115 or the electric vehicle wired or wireless charging installed on the artificial tree 110.

In order to utilize the electric power of the electric storage device 150 in an electric vehicle, an artificial vehicle wireless charging unit 170 is installed on the artificial tree 110, or when the electric vehicle 10 comes up on the wireless charging pad 117, automatically. You can also charge it.

In this embodiment, for example, a unit solar cell: 1000 (1W, 20% efficiency), 200W, carbon composite artificial leaves + tree branches: 1000 (1.65W, 20% efficiency), power converter efficiency 90 In the case of%, when applied to the hybrid type power generation control system of the present invention, the amount of power generation is calculated as 0.9 x 200 x 1.65 = 163WH, it is possible to light six 25W LED street lights.

As described above, in order to escape from the conventional method using the rotation of the fan (propeller) or propeller (propeller), in the present invention to produce electricity in a unit solar cell, a piezoelectric device (element generating pressure as power) It can detect the small shaking in the breeze and convert the movement of twig leaves into the electric energy to produce electricity, and it can be connected to the grid in a small area to produce the small power efficiently.

In addition, the leaves may be composed of a dye-sensitized solar cell or a flexible solar cell, the waterproof and anti-corrosion technology is applied, rain water does not penetrate, there is an effect that does not corrode even long-term use.

It is also equipped with a gas absorber (gas buffer) to prevent fatigue from aggravating the leaves, and when there is no wind, by using the gas absorber to shake the leaves and start them from the leaves. You can also make progress.

In addition, branches and artificial wood are made of an unbroken carbon composite material to prevent breakage or damage in strong winds or typhoons, and the safety sensor stops the power generation mode during strong winds or typhoons to promptly damage or break the system. Can be protected.

In addition, after producing a small power by using a piezoelectric device, the power can be stored in the electrical storage device, by converting the power stored in the power conversion device, for example, the converter and inverter after boosting the commercial power 380V power transmission ( 220V) can be supplied to the customer, and can also be used as a power generator for mountaintops and shelters.

In addition, the present invention may be used to turn on the street lamp at night by using the power generation of the leaves while providing a shade in the existing mountaintop, night mountain, campsite, other places where the shade is necessary, for example, desert, field, beach, city park. .

In addition, when there is only sunlight and there is no wind, only the solar cell of the leaf operates to produce electricity, but when sunlight and wind are simultaneously, the solar cell and the piezoelectric element may be used to produce electricity by mixing (hybrid). That is, during the day, solar cell power generation and piezoelectric power generation can be generated by mixing, and at night, piezoelectric power generation and street lighting are possible.

In addition, the present invention is because the artificial tree is installed, it is easy to construct and install, do not need water or fertilizer to grow the tree, do not need cleaning due to the leaves in autumn, fall in autumn color to adjust the color to fall color You can also change the color of the leaves to match the four seasons by painting insensitive colors.

In addition, the present invention can install the wireless charging unit for the electric vehicle in the energy storage device, or can be automatically charged when the electric vehicle is on the wireless charging pad to utilize the electricity stored in the energy storage device in the electric vehicle.

The present invention is not limited to the above-described embodiments and the accompanying drawings, and various permutations, modifications, and changes can be made without departing from the spirit of the present invention. It will be clear to those who have it.

For example, although the embodiment of the present invention illustrates the installation of a plurality of unit solar cells in the leaves, the leaves themselves may be constituted by solar cells, and in the present embodiment, the fine movement of the leaves is performed by the top and bottom of the plunger. The method of switching to the movement and pressing the piezoelectric element by the vertical movement of the plunger has been described as an example, but is not limited thereto. It is also possible to use other forms. In addition, the shape of the branches or leaves is not limited to those shown in the drawings, may be configured in various shapes in order to increase the power generation efficiency. In addition, the actuator has been described as rotating the left and right around the hinge as an example, the hinge is configured as a joint structure may be rotated in the front and rear direction as well as the left and right directions.

100: hybrid type power generation system
110: artificial tree
111: tree branches
113: leaves
114: first connector
115: street light
120: unit solar cell
130: piezoelectric device
131: housing
132: spring
133: piezoelectric element
134: pressure plate
135: actuator
135a: hinge
136: plunger
137: second connector
140: power converter (inverter)
150: electrical storage device
170: wireless charging unit for the electric vehicle

Claims (6)

delete delete delete delete delete A unit solar cell installed on a leaf to produce electricity by using sunlight, and a piezoelectric device installed on a branch part of the leaf to produce electricity by using the fine movement of the leaf moved by a breeze. In the hybrid type power generation system provided,
A first step of producing electricity in the unit solar cell and the piezoelectric device;
A second step of converting direct current (DC) produced by the unit solar cell and the piezoelectric device into alternating current (AC) in a power converter (inverter);
A third step of converting the alternating current converted by the power converter into direct current and storing the alternating current in an electrical storage device;
A fourth step of judging whether the current is excessively shaken by the leaves due to strong wind or typhoon;
If overcurrent and overvoltage do not occur, continue with the first step, and if overcurrent and overvoltage occur, operate the gas shock absorber to perform a safe mode so that fatigue failure does not occur even under severe shaking of the leaves. Step 5;
A sixth step of determining whether the leaf is excessively shaken and creep continues; And
If the creep phenomenon continues, it moves to the previous stage, and if there is no creep phenomenon, power generation using a solar cell of leaves, including a seventh step of producing electricity from the plurality of unit solar cells and the piezoelectric apparatus again. Hybrid type power generation control method with power generation function using piezoelectric device operated by function and shaking of leaf.

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