CN111245016B - New energy photovoltaic power generation self-steady state output adjusting method and device - Google Patents

New energy photovoltaic power generation self-steady state output adjusting method and device Download PDF

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CN111245016B
CN111245016B CN202010146272.8A CN202010146272A CN111245016B CN 111245016 B CN111245016 B CN 111245016B CN 202010146272 A CN202010146272 A CN 202010146272A CN 111245016 B CN111245016 B CN 111245016B
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power generation
energy
power
photovoltaic panel
electric
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CN111245016A (en
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张天鹏
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Ningxia Baolong New Energy Technology Co ltd
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/28—Arrangements for balancing of the load in a network by storage of energy
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/28—Arrangements for balancing of the load in a network by storage of energy
    • H02J3/30—Arrangements for balancing of the load in a network by storage of energy using dynamo-electric machines coupled to flywheels
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/56—Power conversion systems, e.g. maximum power point trackers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E70/00—Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin

Abstract

The invention discloses a new energy photovoltaic power generation self-steady state output adjusting method and device, which comprises a controller, wherein the controller controls the electrical connection of the output end of a photovoltaic panel, a capacitor and a motor; in the implementation of the invention, the stability of the output power of the solar power generation is improved; according to historical power generation power data of the photovoltaic panel and distribution and state of cloud layers in the sky, output electric power of the photovoltaic panel in the next period is predicted, output current and voltage are subjected to smoothing processing in combination with prediction of the electric power of the photovoltaic panel in the next period, total output electric power is adjusted according to electric loads, storage and release of fluctuating electric quantity in photovoltaic power generation are achieved by arranging a capacitor, a flywheel and a voltage-resistant shell triple energy storage device, and finally stability of the total output power is achieved.

Description

New energy photovoltaic power generation self-steady state output adjusting method and device
Technical Field
The invention relates to the field of new energy power generation, in particular to a new energy photovoltaic power generation self-steady-state output adjusting method and device.
Background
The solar energy in the new energy is used as clean energy, not only has the advantage of inexhaustibility, but also does not discharge greenhouse gases and pollutants. The solar energy is an ideal new energy, but the illumination of the solar energy is converted into electric energy, which is greatly influenced by aerial cloud layers, so that the output power of a power grid is unstable.
Disclosure of Invention
The invention aims to overcome the problems in the prior art, and provides a new energy photovoltaic power generation self-steady-state output adjusting method and device, which can improve the stability of the output power of solar power generation.
In order to achieve the technical purpose and achieve the technical effect, the invention is realized by the following technical scheme:
a new energy photovoltaic power generation self-steady state output adjusting method comprises the following steps,
predicting the power generation power of the next period of non-cloud-layer shielding state according to the historical power generation power data of the photovoltaic panel;
observing the distribution and the state of cloud layers in the sky, and predicting the output electric power of the photovoltaic panel in the next period;
monitoring the output electric power of the photovoltaic panel in real time, and smoothing the output current and voltage by combining the prediction of the electric power of the photovoltaic panel in the next period;
the total output electric power is adjusted according to the electric load.
Further, the method for predicting the power generation power of the photovoltaic panel in the non-cloud-layer shielding state in the next time period according to the historical power generation power data of the photovoltaic panel comprises the following steps,
the historical power generation power data of the photovoltaic panel comprises cloud layer sheltered time segment data and cloud layer sheltered state power generation data, and the same-day working time-power generation power curves with the same sunshine length and the same-day sun height and the same highest point are compared;
intercepting the coincident maximum values in the curves to form a new curve;
and solving a derivative function of a new curve about the working time, wherein the derivative function has one zero point and only one zero point in the working time interval, and the new curve is the working time-power generation curve without cloud cover shielding in the same day.
Further, if two or more zero points exist in the working time interval of the new curve, equivalent replacement is carried out on the non-cloud-layer-sheltered working time-power generation power curve of the adjacent working day within an error allowable range;
and modifying the equivalent replaced non-cloud-layer shielding working time-power generation power curve by combining the sunshine length and the difference of the highest point of the sun on the same day.
Further, the method for observing the distribution and the state of the cloud layer in the sky and predicting the output electric power of the photovoltaic panel in the next period comprises the following steps,
observation t0The method comprises the steps of obtaining the position, the shape and the color of a sky cloud at a moment, wherein the position comprises three-dimensional space coordinates of the cloud, the shape comprises the boundary and the size of the cloud, and the color comprises RGB values of all pixel points of the cloud;
at t1Repeating the observation steps at any moment;
according to t0To t1Establishing a mapping with the output electric power of the photovoltaic panel in the next time period according to the change difference of the clouds at the moment;
and (3) training the mapping input neural network to obtain a cloud layer-output electric power prediction model.
Further, the real-time monitoring of the output electric power of the photovoltaic panel and the prediction of the electric power of the photovoltaic panel in the next period are combined to carry out smoothing treatment on the output current and voltage, including,
according to the prediction of the electric power of the photovoltaic panel in the next time period, integrating the electric power with respect to time to obtain the total power generation amount in the time period;
when the total power generation amount in the time period is higher than the demand of a load end, storing the electric energy;
when the total power generation amount in the time period is lower than the demand of the load end, releasing the stored electric energy;
the stability of the total output voltage and current during this period is maintained during the storage/discharge of electric energy.
Further, the storing of the electrical energy may include,
when the surplus generated energy is lower than the available surplus of the capacitor, the surplus electric energy is stored in the capacitor, and the stability of the total output current and the voltage is realized by controlling the voltage connected to the capacitor in the process;
when the surplus generated power is higher than the available allowance of the capacitor, the photovoltaic panel is connected into the motor, electric energy is converted into kinetic energy of the flywheel, and the stability of total output current and voltage is realized by controlling the voltage connected into the motor in the process;
when the kinetic energy of the flywheel is not enough to accommodate the energy of the redundant electric energy, the motor drives the air pump to rotate, the electric energy is converted into the internal energy of the compressed air, and the stability of the total output current and the voltage is realized by controlling the air compression rate in the process.
Further, the discharging of the stored electrical energy may include,
when the generated energy of the gap is lower than the available electric energy in the capacitor, the available electric energy is released to enter a total output circuit, and the stability of the total output current and the voltage is realized by controlling the voltage connected to the capacitor in the process;
when the power generation amount of the gap is higher than the available electric energy of the capacitor, the motor is connected into the total output circuit, the kinetic energy of the flywheel is converted into electric energy, and the stability of the total output current and the voltage is realized in a pulse width modulation mode by controlling the connection and disconnection of the motor in the process;
when the kinetic energy of the flywheel is lower than the electric energy gap, the internal energy of the released compressed air is converted into mechanical energy to drive the motor to rotate, and finally the mechanical energy is converted into electric energy to be connected into a main output circuit.
A new energy photovoltaic power generation self-steady state output adjusting device can achieve any one of the steps.
The device further comprises a controller, wherein the controller controls the output end of the photovoltaic panel to be electrically connected with the capacitor and the motor, a coaxial flywheel is fixed on a driving shaft of the motor, the tail end of the driving shaft drives the compression pump through a speed trigger coupler, and a first one-way electric control valve is arranged between an exhaust port of the compression pump and the pressure shell;
and a second one-way electric control valve is arranged between the pressure-resistant shell and the pneumatic pump, and the pneumatic pump drives a driving shaft of the motor to rotate through a one-way coupling.
Further, the speed trigger coupling comprises a first inner shaft fixed with the driving shaft and a first outer cylinder coaxial with the first inner shaft, a series of grooves are radially formed in the first inner shaft, sliding blocks are connected in the grooves through elastic belts, and the sliding blocks can be embedded into bayonets in the inner wall of the first outer cylinder under the action of centrifugal force in a high-rotating-speed state;
the shell of the one-way electro-pneumatic valve is provided with an air inlet, the inner side of the air inlet is abutted with an arc-shaped blocking block, the blocking block moves under the action of a swing rod, a permanent magnet at the tail end of the swing rod is displaced under the action of a coil group, and the shell is also provided with an air outlet which is provided with a T-shaped plug to prevent external air from entering the shell;
the one-way coupling comprises a second inner shaft fixed with the pneumatic pump, a swinging block is hinged to the surface of the second inner shaft in the circumferential direction, and the swinging block is clamped with the inner wall wedge-shaped groove of the second outer barrel under the pressing of the spring.
The benefit effects of the invention are:
the stability of the output power of the solar power generation is improved; according to historical power generation power data of the photovoltaic panel and distribution and state of cloud layers in the sky, output electric power of the photovoltaic panel in the next period is predicted, output current and voltage are subjected to smoothing processing in combination with prediction of the electric power of the photovoltaic panel in the next period, total output electric power is adjusted according to electric loads, storage and release of fluctuating electric quantity in new energy photovoltaic power generation are achieved by arranging a capacitor, a flywheel and a pressure-resistant shell triple energy storage device, and finally stability of the total output power is achieved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced 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 that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic connection diagram of a new energy photovoltaic power generation self-steady-state output adjusting device according to the present invention;
fig. 2 is a schematic flow chart of a new energy photovoltaic power generation self-steady-state output adjustment method according to the present invention;
fig. 3 is a schematic illustration of a three-dimensional split structure of the speed trigger coupling according to the present invention;
FIG. 4 is a schematic cross-sectional view of a velocity activated coupling according to the present invention;
fig. 5 is a schematic perspective view of the one-way coupling according to the present invention;
FIG. 6 is a schematic cross-sectional view of the one-way coupling of the present invention;
FIG. 7 is a schematic view of a three-dimensional split structure of the one-way electric control valve of the present invention;
FIG. 8 is a schematic side-sectional perspective view of the electrically controlled one-way valve of the present invention;
fig. 9 is a schematic side sectional plan view of the one-way electric control valve of the present invention.
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.
As shown in fig. 1, a connection schematic diagram of main components of the device is shown, which includes a controller 1, the controller 1 controls the output end of the photovoltaic panel and the capacitor, and the electric connection of the motor 2, a coaxial flywheel 3 is fixed on the drive shaft of the motor 2, the end of the drive shaft drives a compression pump 5 through a speed trigger coupling 4, a first one-way electric control valve 7 is arranged between the exhaust port of the compression pump 5 and a pressure-resistant shell 6, a second one-way electric control valve 8 is arranged between the pressure-resistant shell 6 and a pneumatic pump 9, and the pneumatic pump 9 drives the drive shaft of the motor 2 to rotate through a one-way coupling 10 and a transmission belt. By arranging a capacitor, a flywheel 3 and a pressure-resistant shell 6, the storage and release of fluctuation electric quantity in photovoltaic power generation are realized, and the stability of the total output power is finally realized.
However, considering the influence of cloud layers, the power generation amount of the photovoltaic panel in the future period needs to be estimated, and therefore a new energy photovoltaic power generation self-steady-state output adjustment method is needed.
As shown in fig. 2, the method includes:
the historical power generation power data of the photovoltaic panel comprises cloud layer sheltered time segment data and cloud layer sheltered state power generation data, and the same-day working time-power generation power curves with the same sunshine length and the same-day solar height and the same highest point are compared;
intercepting the coincident maximum values in the curves to form a new curve;
solving a derivative function of a new curve about the working time, wherein the derivative function has one zero point and only one zero point in a working time interval, and the new curve is a cloud-layer-free shading working time-power generation power curve in the same day;
if the new curve has two or more zero points in the working time interval, performing equivalent replacement on the non-cloud-layer-sheltered working time-power generation curve of the adjacent working day within the error allowable range;
and modifying the equivalent replaced non-cloud-layer shielding working time-power generation power curve by combining the sunshine length and the difference of the highest point of the sun on the same day.
Observation t0The method comprises the steps of obtaining the position, the shape and the color of a sky cloud at a moment, wherein the position comprises three-dimensional space coordinates of the cloud, the shape comprises the boundary and the size of the cloud, and the color comprises RGB values of all pixel points of the cloud;
at t1Repeating the observation steps at any moment;
according to t0To t1Establishing a mapping with the output electric power of the photovoltaic panel in the next time period according to the change difference of the clouds at the moment;
training the mapping input neural network to obtain a cloud layer-output electric power prediction model;
according to the prediction of the electric power of the photovoltaic panel in the next time period, integrating the electric power with respect to time to obtain the total power generation amount in the time period;
when the total power generation amount in the time period is higher than the demand of a load end, storing the electric energy;
when the total power generation amount in the time period is lower than the demand of the load end, releasing the stored electric energy;
during the process of storing/releasing the electric energy, the stability of the total output voltage and the total output current in the time period is kept;
the manufacturing cost of unit capacity of the capacitor is too high, but the response speed is high, the capacitor is suitable for primary energy storage, the corresponding speed and the manufacturing cost of the flywheel are intermediate, the capacitor is suitable for secondary energy storage, the manufacturing cost of the pressure-resistant shell is lowest, but the response speed is low, and the capacitor is suitable for tertiary energy storage;
as shown in fig. 1, when the surplus generated energy is lower than the available margin of the capacitor, the surplus electric energy is stored in the capacitor, and the total output current and the voltage are stabilized by controlling the voltage connected to the capacitor in the process;
when the surplus generated power is higher than the available allowance of the capacitor, the photovoltaic panel is connected into the motor, electric energy is converted into kinetic energy of the flywheel, and the stability of total output current and voltage is realized by controlling the voltage connected into the motor in the process;
when the kinetic energy of the flywheel 2 is not enough to accommodate the energy of the redundant electric energy, the motor 3 drives the air pump 5 to rotate, the electric energy is converted into the internal energy of the compressed air, and the stability of the total output current and the voltage is realized by controlling the air compression rate in the process.
When the generated energy of the gap is lower than the available electric energy in the capacitor, the available electric energy is released to enter a total output circuit, and the stability of the total output current and the voltage is realized by controlling the voltage connected to the capacitor in the process;
when the power generation amount of the gap is higher than the available electric energy of the capacitor, the motor 2 is connected into a total output circuit, the kinetic energy of the flywheel 3 is converted into electric energy, and the stability of total output current and voltage is realized in a pulse width modulation mode by controlling the connection and disconnection of the motor 2 in the process;
when the kinetic energy of the flywheel 3 is lower than the electric energy gap, the internal energy of the released compressed air is converted into mechanical energy to drive the motor 2 to rotate, and finally the mechanical energy is converted into electric energy to be connected into a total output circuit, and the stability of the total output current and the voltage is realized by controlling the release flow rate of the compressed air in the process.
As shown in fig. 3-4, in order to stabilize the overall output current and voltage in the above operations, the controller 1 needs to control the charging and discharging of the capacitor, the starting and stopping of the motor 2, and the forward and reverse charging and discharging operations in real time, and the speed trigger coupler 4 needs to drive the compression pump 5 to operate after the rotation speed of the driving shaft reaches the set rotation speed;
the speed trigger coupling 4 comprises a first inner shaft 41 fixed with a driving shaft and a first outer cylinder 42 coaxial with the first inner shaft, the first inner shaft is radially provided with a series of grooves 43, the grooves 43 are internally connected with sliders 45 through elastic belts 44, and the sliders 45 can be embedded into bayonets 46 on the inner wall of the first outer cylinder 42 under the action of centrifugal force in a high-rotating-speed state; so that the compression pump 5 can be driven to work only after the rotating speed of the driving shaft is too high.
As shown in fig. 7-9, the unidirectional electric control valves 7 and 8 are further required to realize air flow control of a preset target under the control of the controller 1, a shell 70 of the unidirectional electric pneumatic valve 7 or 8 is provided with an air inlet 71, an inner side of the air inlet 71 is abutted with an arc-shaped blocking block 72, the blocking block 72 moves under the action of a swing rod 73, a permanent magnet 74 at the tail end of the swing rod 73 is displaced under the action of a coil group 75, and the shell 70 is further provided with an air outlet 76 provided with a T-shaped plug 77 to prevent external air from entering the shell; the current direction and the on-off of the coil set 75 are controlled to realize the set function.
As shown in fig. 5-6, a one-way coupling 10 is further required to convert the energy released by the compressed gas into the kinetic energy for driving the motor 2 to rotate, but the motor 2 does not drive the pneumatic pump 9 to work when rotating normally, the one-way coupling 10 includes a second inner shaft 101 fixed with the pneumatic pump 9, a swing block 102 is hinged to the surface of the second inner shaft 101 in the circumferential direction, the swing block 102 is clamped with an inner wall wedge-shaped groove 105 of a second outer cylinder 104 under the compression of a spring 103, and the function of one-way driving is achieved through a ratchet effect.
In the above-mentioned operation, compare traditional mode, improve solar energy power generation output's stability.
In the description herein, references to the terms "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims (9)

1. A new energy photovoltaic power generation self-steady state output adjusting method is characterized by comprising the following steps: comprises the following steps of (a) carrying out,
predicting the power generation power of the next period of non-cloud-layer shielding state according to the historical power generation power data of the photovoltaic panel;
observing the distribution and the state of cloud layers in the sky, and predicting the output electric power of the photovoltaic panel in the next period;
monitoring the output electric power of the photovoltaic panel in real time, and smoothing the output current and voltage by combining the prediction of the electric power of the photovoltaic panel in the next period;
adjusting the total output electric power according to the electric load;
the method for predicting the power generation power of the photovoltaic panel in the non-cloud-layer shielding state in the next period according to the historical power generation power data of the photovoltaic panel comprises the following steps,
the historical power generation power data of the photovoltaic panel comprises cloud layer sheltered time segment data and cloud layer sheltered state power generation data, and the same-day working time-power generation power curves with the same sunshine length and the same-day sun height and the same highest point are compared;
intercepting the coincident maximum values in the curves to form a new curve;
and solving a derivative function of a new curve about the working time, wherein the derivative function has one zero point and only one zero point in the working time interval, and the new curve is the working time-power generation curve without cloud cover shielding in the same day.
2. The method of claim 1, wherein: if the new curve has two or more zero points in the working time interval, performing equivalent replacement on the non-cloud-layer-sheltered working time-power generation curve of the adjacent working day within the error allowable range;
and modifying the equivalent replaced non-cloud-layer shielding working time-power generation power curve by combining the sunshine length and the difference of the highest point of the sun on the same day.
3. The method of claim 1, wherein: the method for forecasting the output electric power of the photovoltaic panel in the next period by observing the distribution and the state of cloud layers in the sky comprises the following steps,
observation t0The method comprises the steps of obtaining the position, the shape and the color of a sky cloud at a moment, wherein the position comprises three-dimensional space coordinates of the cloud, the shape comprises the boundary and the size of the cloud, and the color comprises RGB values of all pixel points of the cloud;
at t1Repeating the observation steps at any moment;
according to t0To t1Establishing a mapping with the output electric power of the photovoltaic panel in the next time period according to the change difference of the clouds at the moment;
and (3) training the mapping input neural network to obtain a cloud layer-output electric power prediction model.
4. The method of claim 1, wherein: the real-time monitoring of the output electric power of the photovoltaic panel and the combined prediction of the electric power of the photovoltaic panel in the next period are used for smoothing the output current and voltage, comprising,
according to the prediction of the electric power of the photovoltaic panel in the next period, integrating the electric power with respect to time to obtain the total power generation amount in the next period;
when the total power generation amount in the next time period is higher than the demand of a load end, storing the electric energy;
when the total power generation amount in the next time period is lower than the demand of the load end, releasing the stored electric energy;
the stability of the total output voltage and current in the next period is maintained during the process of storing/releasing electric energy.
5. The method of claim 4, wherein: the method for storing the electric energy comprises the following steps,
when the surplus generated energy is lower than the available surplus of the capacitor, the surplus electric energy is stored in the capacitor, and the stability of the total output current and the voltage is realized by controlling the voltage connected to the capacitor in the process;
when the surplus generated power is higher than the available allowance of the capacitor, the photovoltaic panel is connected into the motor, electric energy is converted into kinetic energy of the flywheel, and the stability of total output current and voltage is realized by controlling the voltage connected into the motor in the process;
when the kinetic energy of the flywheel is not enough to accommodate the energy of the redundant electric energy, the motor drives the air pump to rotate, the electric energy is converted into the internal energy of the compressed air, and the stability of the total output current and the voltage is realized by controlling the air compression rate in the process.
6. The method of claim 4, wherein: the discharging of the stored electrical energy may include,
when the generated energy of the gap is lower than the available electric energy in the capacitor, the available electric energy is released to enter a total output circuit, and the stability of the total output current and the voltage is realized by controlling the voltage connected to the capacitor in the process;
when the power generation amount of the gap is higher than the available electric energy of the capacitor, the motor is connected into the total output circuit, the kinetic energy of the flywheel is converted into electric energy, and the stability of the total output current and the voltage is realized in a pulse width modulation mode by controlling the connection and disconnection of the motor in the process;
when the kinetic energy of the flywheel is lower than the electric energy gap, the internal energy of the released compressed air is converted into mechanical energy to drive the motor to rotate, and finally the mechanical energy is converted into electric energy to be connected into a main output circuit.
7. The utility model provides a new forms of energy photovoltaic power generation homeostatic output adjusting device which characterized in that: the apparatus is capable of implementing the method of any one of claims 1-6.
8. The apparatus of claim 7, wherein: the device also comprises a controller, wherein the controller controls the electrical connection between the output end of the photovoltaic panel and the capacitor as well as between the output end of the photovoltaic panel and the motor, a coaxial flywheel is fixed on a driving shaft of the motor, the tail end of the driving shaft drives a compression pump through a speed trigger coupler, and a first one-way electric control valve is arranged between an exhaust port of the compression pump and a pressure shell;
and a second one-way electric control valve is arranged between the pressure-resistant shell and the pneumatic pump, and the pneumatic pump drives a driving shaft of the motor to rotate through a one-way coupling.
9. The apparatus of claim 8, wherein: the speed trigger coupling comprises a first inner shaft fixed with the driving shaft and a first outer cylinder coaxial with the first inner shaft, a series of grooves are radially formed in the first inner shaft, sliding blocks are connected in the grooves through elastic belts, and the sliding blocks can be embedded into bayonets in the inner wall of the first outer cylinder under the action of centrifugal force in a high-rotating-speed state;
the shell of the one-way electric control valve is provided with an air inlet, the inner side of the air inlet is abutted with an arc-shaped blocking block, the blocking block moves under the action of a swing rod, a permanent magnet at the tail end of the swing rod is displaced under the action of a coil group, and the shell is also provided with an air outlet which is provided with a T-shaped plug to prevent external air from entering the shell;
the one-way coupling comprises a second inner shaft fixed with the pneumatic pump, a swinging block is hinged to the surface of the second inner shaft in the circumferential direction, and the swinging block is clamped with the inner wall wedge-shaped groove of the second outer barrel under the pressing of the spring.
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