CN112234922A

CN112234922A - Photovoltaic system

Info

Publication number: CN112234922A
Application number: CN202011174893.3A
Authority: CN
Inventors: 张海平; 顾彩军; 平川; 许利强
Original assignee: Wuxi Haosolar Technology Co ltd
Current assignee: Wuxi Haosolar Technology Co ltd
Priority date: 2020-10-28
Filing date: 2020-10-28
Publication date: 2021-01-15

Abstract

The application discloses a photovoltaic system. Wherein photovoltaic system includes: a photovoltaic panel assembly for converting light energy into electrical energy; an adjustable support assembly for supporting the photovoltaic panel assembly and adjustably changing the orientation of the photovoltaic panel assembly to receive light energy at an appropriate angle; the motor driving component is used for driving the adjustable bracket component to actuate according to a preset movement mode; the control assembly is electrically connected with the photovoltaic panel assembly and the motor driving assembly and is used for controlling the motor driving assembly to adjust the adjustable support assembly according to a preset movement mode; the photovoltaic panel assembly is electrically connected with the motor driving assembly, and the motor driving assembly is mainly supplied with electric energy by the photovoltaic panel assembly, so that a low-cost implementation mode is provided.

Description

Photovoltaic system

Technical Field

The application relates to the technical field of solar energy, in particular to a photovoltaic system.

Background

Photovoltaic systems in the prior art may include a photovoltaic panel assembly, an adjustable bracket assembly. Photovoltaic panel assemblies are used primarily to convert solar or light energy into electrical energy. The adjustable support assembly supports the photovoltaic panel assembly and is mainly used for adjusting the orientation of the photovoltaic panel assembly. It is understood that the sun periodically rises and falls with respect to the earth east. In order to improve the receiving efficiency of solar energy, the orientation of the photovoltaic panel assembly may be periodically adjusted. The adjustment period of one photovoltaic panel assembly may be in units of days and the adjustment period of another photovoltaic panel assembly may be in units of years.

In the process of realizing the prior art, the inventor finds that:

the photovoltaic panel assembly with the day as the adjusting period needs to use a motor to drive the adjustable support assembly to move. Therefore, the motor in the photovoltaic system periodically rotates, the service life and the operation reliability of the motor are high, and the realization cost of the photovoltaic system is high.

The photovoltaic panel assembly with the year as the adjusting period is mainly adjusted manually. The large-area photovoltaic system is mainly installed in the field with rich solar energy resources. For example, the orientation of the photovoltaic panel assembly is adjusted every year in four seasons of spring, summer, autumn and winter. People need to be specially dispatched to a photovoltaic system installation place to adjust the orientation of the photovoltaic panel assembly in each season, and the labor cost is high.

Therefore, it is desirable to provide a photovoltaic system related solution with low implementation cost.

Disclosure of Invention

The embodiment of the application provides a technical scheme with low implementation cost, and the technical scheme is used for solving the technical problem that a photovoltaic system is high in implementation cost.

The present application provides a photovoltaic system comprising:

a photovoltaic panel assembly for converting light energy into electrical energy;

an adjustable support assembly for supporting the photovoltaic panel assembly and adjustably changing the orientation of the photovoltaic panel assembly to receive light energy at an appropriate angle;

the motor driving component is used for driving the adjustable bracket component to actuate according to a preset movement mode;

the control assembly is electrically connected with the photovoltaic panel assembly and the motor driving assembly and is used for controlling the motor driving assembly to adjust the adjustable support assembly according to a preset movement mode;

the photovoltaic panel assembly is electrically connected with the motor driving assembly, and the motor driving assembly is mainly supplied with electric energy by the photovoltaic panel assembly.

Further, in a preferred embodiment provided by the present application, an electrical connector is disposed between the photovoltaic panel assembly and the control assembly.

Further, in a preferred embodiment provided herein, the adjustable bracket assembly includes:

the supporting legs are fixed on the ground and used for providing supporting force;

the bracket is pivotally connected with the supporting leg;

and the adjusting mechanism is arranged between the bracket and the supporting leg and used for adjusting the relative position of the bracket and the supporting leg.

Further, in a preferred embodiment provided herein, the motor drive assembly includes a motor;

the motor is installed in the supporting leg.

the motor is mounted to the adjustment mechanism.

Further, in a preferred embodiment provided herein, the adjustment mechanism includes a frame and an adjustment rod passing through the frame;

the motor comprises a motor shell and a motor shaft extending out of the motor shell;

the motor shell is matched and connected with the frame;

the motor shaft is matched and connected with the adjusting rod.

the motor shell is matched and connected with the frame;

the motor shaft and the adjusting rod are integrally formed.

the photovoltaic panel assembly masks the motor.

the motor is installed according to the following mode:

the motor shaft is vertically upward.

the motor is installed according to the following mode:

the motor shaft extends in a horizontal direction.

the power of the motor is designed according to the following requirements:

the highest rotation angular velocity of the photovoltaic panel assembly is 4 degrees per minute.

Further, in a preferred embodiment provided herein, the motor power is less than 60W.

Further, in a preferred embodiment provided by the present application, the motor is provided with a built-in speed reduction mechanism;

the reduction ratio of the reduction mechanism is 1:100-1: 1000.

Further, in a preferred embodiment provided by the present application, the control assembly is packaged inside the motor driving assembly.

Further, in a preferred embodiment provided by the present application, the control assembly includes a communication module for updating an operating program of the control assembly.

The present application further provides a photovoltaic system, comprising:

the adjustable bracket assembly comprises a bracket for supporting the photovoltaic panel assembly, a supporting leg for bearing the bracket, and an adjusting mechanism arranged between the bracket and the supporting leg;

and the motor is arranged on the adjusting mechanism and used for driving the adjustable bracket component to actuate according to a preset movement mode.

the motor shell is matched and connected with the frame;

the motor shaft is matched and connected with the adjusting rod.

the motor shell is matched and connected with the frame;

the motor shaft and the adjusting rod are integrally formed.

Further, in a preferred embodiment provided by the present application, the power of the motor is designed according to the following requirements:

the reduction ratio of the reduction mechanism is 1:100-1: 1000.

The embodiment provided by the application has at least the following beneficial effects:

the photovoltaic panel assembly is electrically connected with the motor driving assembly, and the motor driving assembly is mainly supplied with electric energy by the photovoltaic panel assembly, so that a low-cost implementation mode is provided.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic block diagram of a photovoltaic system provided in an embodiment of the present application;

fig. 2 is a schematic structural diagram of another photovoltaic system provided in an embodiment of the present application;

FIG. 3 is a schematic structural diagram of a tray-supported photovoltaic panel assembly according to an embodiment of the present disclosure;

FIG. 4 is a schematic structural view of one embodiment of an adjustable brace assembly provided in accordance with an embodiment of the present disclosure;

fig. 5 is a partial enlarged view of a portion a-a in fig. 1.

100 photovoltaic system

101 adjustment mount subsystem

102 motor drive subsystem

11 photovoltaic panel assembly

12 Adjustable rack assembly

121 fixed foot

122 support leg

123 bracket

124 adjustment mechanism

13 Motor drive Assembly

14 control assembly

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, 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 application.

Referring to fig. 1, the present application discloses a photovoltaic system 100, comprising:

a photovoltaic panel assembly 11 for converting light energy into electric energy;

an adjustable support assembly 12 for supporting the photovoltaic panel assembly 11 and adjustably changing the orientation of the photovoltaic panel assembly 11 to receive light energy at an appropriate angle;

the motor driving component 13 is used for driving the adjustable bracket component 12 to actuate according to a preset movement mode;

the control assembly 14 is electrically connected with the photovoltaic panel assembly 11 and the motor driving assembly 13, and is used for controlling the motor driving assembly 13 to adjust the adjustable support assembly 12 according to a preset movement mode;

the photovoltaic panel assembly 11 is electrically connected to the motor driving assembly 13, and the motor driving assembly 13 is mainly supplied with electric energy by the photovoltaic panel assembly 11.

The photovoltaic panel assembly 11 is used to convert light energy into electrical energy. The photovoltaic panel assembly 11 may be made primarily of polycrystalline or monocrystalline silicon, or other semiconductor materials having an electro-optical effect. Sunlight impinges on the photovoltaic panel assembly 11 and is absorbed at the interface layer of the photovoltaic panel assembly 11. The photovoltaic panel assembly 11 made of semiconductor material has a PN junction. Photons of sufficient energy in the absorbed sunlight can excite electrons in the PN junction from covalent bonds so as to generate electron-hole pairs. The electrons and holes near the interface layer will be separated from each other by the electric field effect of space charge before recombination. The charge separation at the interface layer will create an outward testable voltage across the PN junction. The more electron-hole pairs are generated at the interface layer of the photovoltaic panel assembly 11 by sunlight, the greater the current. The more light energy absorbed by the interface layer of the photovoltaic panel assembly 11, the larger the interface layer, i.e., the area of the photovoltaic panel assembly 11 that is illuminated, the greater the current generated by the photovoltaic panel assembly 11. The current generated by the photovoltaic panel assembly 11 is collected by the bus wires and can be used as a power source.

The adjustable bracket assembly 12 is used to support the photovoltaic panel assembly 11 and adjustably change the orientation of the photovoltaic panel assembly 11 to receive light energy at an appropriate angle.

Referring to fig. 2, in another structural schematic diagram of the photovoltaic system provided in the present application, the adjustable bracket assembly 12 includes a fixed foot 121 fixable to the ground, a supporting leg 122 connected to the fixed foot 121, a bracket 123 pivotable relative to the supporting leg 122, and an adjusting mechanism 124 disposed between the bracket 123 and the supporting leg 122.

It is understood that the fixing legs 121 are not necessarily constructed. The manner in which the fixing foot 121 is fixed to the ground may have various forms. In the preferred embodiment provided by the present application, in order to strengthen the supporting structure, the fixing feet 121 can be partially embedded in the ground, and only part of the fixing feet is exposed for connecting the supporting legs 122. The fixing leg 121 may be a cement pier, a metal block, or other material or composite material. In the specific implementation form provided in the present application, the fixing leg 121 may be a rod-shaped member extending in the longitudinal direction, or may be an array of fixing legs 121 formed by arranging a plurality of fixing legs 121.

The support legs 122 are connected to the fixing feet 121. The support legs 122 are mainly used to provide a supporting force for supporting the photovoltaic panel assembly 11. The connection of the support legs 122 to the fixing feet 121 may be various. In one embodiment provided herein, the support legs 122 are also pivotally connected to the feet 121. As shown in fig. 2, the fixing feet 121 may be formed of two rod-shaped members disposed in parallel, or two arrays of fixing feet 121 disposed in substantially parallel. The support legs 122 are correspondingly arranged in two or two rows. One side of the supporting leg 122 is connected with the fixing foot 121. The other sides of the supporting legs 122 arranged in pairs abut against each other to form a supporting portion. The supporting part can be a linear supporting part or a plurality of supporting points which are arranged in a dotted line shape. Thus, the supporting portion and the fixing leg 121 together form three vertexes of a triangle. In this way, the weight of the photovoltaic panel assembly 11 is supported in the vertical direction by the securing feet 121. The torque and biasing force when the photovoltaic panel assembly 11 is not oriented simultaneously, or when the photovoltaic panel assembly 11 is biased, are balanced by the connection mechanism between the support legs 122 and the fixing feet 121. Further, in order to keep the support structure formed by the support legs 122 and the fixing feet 121, which are provided in pairs, stable, a reinforcing bar may be provided at a position substantially in the middle in the extending direction of the support legs 122.

As shown in fig. 3, is another viewing angle of the bracket 123.

The bracket 123 is directly used to support the photovoltaic panel assembly 11. The bracket 123 is pivotable relative to the support leg 122. The bracket 123 may have a flat plate structure, or may be a supporting frame formed by rod-shaped members crossing each other. The support frame may include a first beam extending in a first direction and a second beam extending in a second direction. The first beam and the second beam may intersect each other in the same plane, or may be stacked to form a depth of the supporting direction of the photovoltaic panel assembly 11. The projections of the ground of the first beam and the second beam may or may not be perpendicular to each other.

The bracket 123 can be pivoted relative to the supporting leg 122 as a whole to form a shape with different included angles with the ground. The change and the limit of the bracket 123 forming different included angles with the ground are realized by the adjusting mechanism 124.

The adjustment mechanism 124 is disposed between the bracket 123 and the support leg 122. The adjustment mechanism 124 functions to rotate and position the carriage 123 relative to the ground.

Referring to fig. 4, in an embodiment provided in the present application, the adjusting mechanism 124 may be a telescopic rod structure. One end of the telescopic rod is connected to the bracket 123, and the other end is connected to the supporting leg 122. The projection of the two ends of the telescopic rod, the pivot point of the support or bracket 123, the pivot axis, in a side view, form the three vertices of a triangle. The projection of the telescopic rod, the bracket 123 and the supporting leg 122 in a side view forms three sides of a triangle. Because supporting leg 122 is relatively fixed, can change the contained angle of bracket 123 and supporting leg 122 through adjusting the length of telescopic link, and then change the contained angle of bracket 123 and ground. In particular, the telescopic rod structure may comprise a worm wheel and a worm. The rotation of the worm wheel drives the relative position between the worm wheel and the worm to change, and finally the included angle between the bracket 123 and the ground is changed. Here, the rotation of the worm wheel can be realized by the motor driving component 13 in the process of embodying the present application.

Referring to fig. 1 and 5, in one embodiment provided herein, the adjusting mechanism 124 may be a jack structure. Thus, the adjustment mechanism 124 may be considered essentially a four-bar linkage structure, or may be embodied as a diamond-shaped structure in a side view projection. One of a pair of vertices of the diamond shape is attached to the bracket 123 and the other vertex of the pair is disposed on the support leg 122. The projection of the pair of vertices of the diamond shaped adjustment mechanism 124, the pivot point, the pivot axis of the support or bracket 123 in a side view, form the three vertices of a triangle. The projection of the jack, bracket 123, and support leg 122 in a side view forms three sides of a triangle. Because the supporting leg 122 is relatively fixed, the included angle between the bracket 123 and the supporting leg 122 can be changed by adjusting the included angle of the rhombus of the adjusting mechanism 124, and further the included angle between the bracket 123 and the ground is changed.

In the specific embodiment provided herein, the adjustment mechanism 124 is implemented using a jack structure. The adjustment mechanism 124 changes the projection length of the side by adjusting the pitch between the vertices of the rhombus in the direction perpendicular to the supporting direction of the photovoltaic panel assembly 11. In this case, in particular, an adjusting lever is arranged between two vertices of the lifting jack structure. Through the rotation of the adjusting rod, the change of the distance between the two vertexes of the rhombic adjusting mechanism 124 is realized, and finally, the change of the included angle between the bracket 123 and the ground is realized. Rotation of the adjustment lever may be accomplished by the motor drive assembly 13 during the practice of the present application.

And the motor driving component 13 is used for driving the adjustable bracket component 12 to actuate according to a preset movement mode. The motor drive assembly 13 may include a motor and various stages of gearing. The transmission ultimately transmits power to the adjustable bracket assembly 12. The motor driving assembly 13 is electrically connected with the photovoltaic panel assembly 11, and the motor driving assembly 13 is mainly supplied with electric energy by the photovoltaic panel assembly 11.

It is to be noted in particular that here the motor drive assembly 13 is mainly supplied with electrical energy by said photovoltaic panel assembly 11. It is mainly understood that "in normal use", "according to the normal use scenario faced by the design", the electric energy required by the motor drive assembly 13 is all supplied by the photovoltaic panel assembly 11, except for special requirements and engineering redundancy backup.

And the control component 14 is electrically connected with the photovoltaic panel component 11 and the motor driving component 13 and is used for controlling the motor driving component 13 to adjust the adjustable support component 12 according to a preset movement mode.

The control unit 14 may be implemented by a single chip microcomputer or a microprocessor having a simple function. In a typical configuration, the control component 14 may include one or more processors (CPUs), input/output interfaces, network interfaces, and memory.

The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). Memory is an example of a computer-readable medium.

Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.

It should be noted that the representation form of the control component 14 in the specific application may be a single chip, a microprocessor, an integrated circuit, etc. These embodiments should not be construed as limiting the scope of the present application.

Again, it should be reiterated that the motor drive assembly 13 is primarily powered by the photovoltaic panel assembly 11. It is mainly understood that "in normal use", "according to the normal use scenario faced by the design", the electric energy required by the motor drive assembly 13 is all supplied by the photovoltaic panel assembly 11, except for special requirements and engineering redundancy backup.

It is important to emphasize that the motor here can be specifically customized.

Towards the photovoltaic panel assembly 11 with the day adjustment cycle, a motor is required to drive the movement of the adjustable bracket assembly 12. Thus, the motor in the photovoltaic system 100 periodically rotates, and the requirements on the service life and the operational reliability of the motor are high, which further results in high implementation cost of the photovoltaic system 100. In addition, in the design of the photovoltaic system 100, in order to improve the effective work of the adjustment motor in consideration of the adjustment period in the unit of day, the weight of the bracket 123 needs to be reduced as much as possible, and theoretically, the smaller the mass of the bracket is, the higher the effective work of the rotation of the photovoltaic panel assembly 11 is. That is, the photovoltaic system 100 with the day as the adjustment cycle needs to be light-weighted. Lightweight photovoltaic systems 100 typically tend to select high power motors when faced with wind resistance requirements. When the wind resistance demand appears, the orientation of the photovoltaic panel assembly 11 can be quickly adjusted to the wind resistance position through the high-power motor. Because the photovoltaic panel assembly 11 takes the day as the adjustment period, the orientation of the photovoltaic panel assembly 11 can correspond to the position of the sun within one day, and the power generation efficiency is high. It is understood that the orientation of the photovoltaic panel assembly 11 with the day as the adjustment cycle, in terms of implementation in china, is primarily directed toward adjustment from east to west.

In the direction of the photovoltaic panel assembly 11 with the year as the adjustment cycle, the adjustment of the photovoltaic panel assembly 11 is mainly performed manually. The large-area photovoltaic system 100 is mainly installed in the field where solar energy resources are abundant. The photovoltaic panel assembly 11 is adjusted in a year-by-year adjusting period, for example, the orientation of the photovoltaic panel assembly 11 is adjusted every year in four seasons of spring, summer, autumn and winter, and a cycle is completed within one year. The orientation of the photovoltaic panel assembly 11 needs to be adjusted by specially sending people to the installation place of the photovoltaic system 100 every season, and the labor cost is also high. In order to improve the efficiency of manual adjustment, when the motor is selected, a high-power motor is usually selected, otherwise, the adjustment of one minimum unit in the photovoltaic system 100 takes too long, for example, takes 2 hours, and the limit endured by an operator is exceeded. It is understood that the photovoltaic panel assembly 11, which is oriented to the year as the adjustment period, is primarily adjusted between different heights in the south in terms of the chinese implementation.

In theory, the photovoltaic panel assembly 11 oriented to the day as the adjustment cycle has a higher power generation efficiency than the photovoltaic panel assembly 11 oriented to the year as the adjustment cycle.

The application finds that:

under normal circumstances, the power generation efficiency of the photovoltaic panel assembly 11 oriented to the day as the adjustment period is higher than that of the photovoltaic panel assembly 11 oriented to the year as the adjustment period. However, the photovoltaic panel assembly 11 with the day as the adjustment period requires higher product performance of the motor driving assembly 13, specifically, high operation stability and long service life. Once the motor driving assembly 13 fails, the photoelectric conversion efficiency of the photovoltaic panel assembly 11 is greatly reduced. For a photovoltaic system generally taking megawatts as a unit, in the whole designed life cycle of the photovoltaic system, the number of the motor driving components 13 is huge, the working time length is extremely long, and the occurrence of a fault belongs to a high-probability event.

The power generation efficiency of the photovoltaic panel assembly 11 oriented to the year adjustment cycle is lower than the power generation efficiency of the photovoltaic panel assembly 11 oriented to the day adjustment cycle. However, since only a limited number of adjustments are required within a year towards the photovoltaic panel assembly 11 with a year as an adjustment period, manual adjustment can be performed without large-scale configuration of the high-quality motor driving assembly 13, and thus the implementation cost is low and the cost performance is relatively high. Even if a powerful motor is used in order to increase the efficiency of the adjustment, the number of uses, the duration of use of the motor drive assembly 11, is still relatively small. The number of the motor driving assemblies 13 can be configured to be equal to the number of operators, and the one-time investment cost of the motor driving assemblies 13 is still limited. Further, the power generation efficiency and cost efficiency of the photovoltaic panel assembly 11 are relatively high in the year adjustment cycle. In the face of the wind resistance requirement of the photovoltaic system 100 or the photovoltaic panel assembly 11, since the requirement of the photovoltaic panel assembly 11 with the year as the adjustment period for the angular velocity of rotation is very low, the adjustable bracket assembly 12 is designed to emphasize rigidity and strength, that is, the adjustable bracket assembly 12 and the photovoltaic panel assembly 11 are designed to be sturdy.

The applicant, in the case of intensive research into two different implementations, found that:

although the power generation efficiency toward the photovoltaic panel assembly 11 with the adjustment period of day is higher than that toward the photovoltaic panel assembly 11 with the adjustment period of year in the normal case, once the consideration is given to the failure probability of the motor drive assembly 11, in the photovoltaic system 100 with the unit of GW, the improvement ratio of the power generation efficiency toward the photovoltaic panel assembly 11 with the adjustment period of day is approximately 1% to 2% with respect to that toward the photovoltaic panel assembly 11 with the adjustment period of year. For a design life cycle of the photovoltaic system 100 of 20 years, when the photovoltaic system 100 is used for more than 10 years, the maintenance cost of the motor driving assembly 13 of the photovoltaic system 100 facing the day as the adjustment cycle is greatly increased. That is, overall, the photovoltaic system 100 is more competitive with the year-based regulation period. However, the large-scale application of the photovoltaic system 100 with the year as the adjustment period, and the adjustment time of the photovoltaic system 100 with the year as the adjustment period is concentrated in several days before and after spring equinox, summer solstice, autumn equinox, and winter solstice. Near these concentrated adjustment times, the adjustments can effectively improve the photoelectric conversion efficiency of the photovoltaic system 100 for the annual adjustment period. Limited by the number of operators, overlapping the problem of reduced working population in the future, the deployment scale of the photovoltaic system 100 is limited by the year adjustment period, and the use cost will rise significantly in the future.

In the embodiments provided in the present application, the applicant adopts a customized low-power motor, so as to reduce the power requirement of the motor driving assembly 11 and reduce the one-time investment cost of the motor driving assembly 11. This makes large-scale deployment of the motor drive assembly 11 in the photovoltaic system 100 with a year-justified period possible at commercial cost. In the embodiment provided by the present application, since the adjustment of the orientation of the photovoltaic panel assembly 11 is automatically controlled by the control assembly 14, it is possible to complete the change of the orientation by 1 degree within a period from sunset to sunset, for example, 12 hours, and therefore, the requirement on the motor power is extremely low, thereby greatly reducing the implementation cost of the photovoltaic system 100.

Meanwhile, in order to reduce the dependence of the photovoltaic system 100 of the photovoltaic panel assembly 11 on the number of operators in the adjustment period of the year, the motor driving assembly 13 is electrically connected with the photovoltaic panel assembly 11, and the motor driving assembly 13 is mainly supplied with electric energy by the photovoltaic panel assembly 11. This was not achievable in the prior art. For the photovoltaic panel assembly 11 oriented to the day as the adjustment period, when the lighting condition is insufficient and the wind resistance requirement is met, if no external power supply supplies power, the photovoltaic panel assembly 11 cannot be adjusted to the proper wind resistance angle, and the photovoltaic panel assembly 11 is extremely easy to damage. For a photovoltaic panel assembly 11 oriented in the year adjustment cycle, due to the concentration of the adjustment time window, if no external power supply is provided and the lighting conditions within the adjustment time window are insufficient, the adjustment task of the photovoltaic panel assembly 11 cannot be completed.

In the specific embodiment provided by the present application, the motor power in the motor driving assembly is extremely low, and the photovoltaic panel assembly 11 is regulated in a year period. The control component 14 is electrically connected to the photovoltaic panel component 11 and the motor driving component 13, so that the control component 14 only needs to be set to complete the adjustment of the orientation of the photovoltaic panel component 11 when the lighting condition allows, in this case, the electric energy formed by the photoelectric conversion of the photovoltaic panel component 11 is enough to complete the adjustment of the orientation of the photovoltaic panel component 11, and no operator is required to participate, and meanwhile, no external power supply is required, so that the implementation cost of the photovoltaic system 100 is low.

Further, more than 85% of the energy required by the adjustable bracket assembly 12 in one adjustment cycle is supplied by the photovoltaic panel assembly 11.

Assuming that the energy consumed by the photovoltaic panel assembly 11 during the year toward the adjustment direction is N joules, or the energy consumed by the pivoting of the parts in the adjustable support assembly 12 is N joules, the energy supplied by the photovoltaic panel assembly 11 can reach 0.85N joules. That is, the engineering redundancy of energy is less than 15%. That is, those skilled in the art should not be considered to depart from the scope of the present application by setting an invalid power source, or setting a power source for engineering redundancy backup only.

Further, in a preferred embodiment provided herein, the energy required by the adjustable bracket assembly 12 during a single adjustment cycle is supplied entirely by the photovoltaic panel assembly 11.

The energy consumed by pivoting some parts in the adjustable support assembly 12 is supplied by energy generated immediately by the photovoltaic panel assembly 11 or energy stored in the previous photovoltaic panel assembly 11.

Further, in a preferred embodiment provided herein, the photovoltaic system 100 is further provided with a clutch assembly for transmitting and disconnecting the driving force of the motor driving assembly 13 for driving the adjustable bracket assembly 12;

when the motor driving assembly 13 is in a disengaged state with the adjustable bracket assembly 12, the driving force of the motor driving assembly 13 cannot be transmitted to the adjustable bracket assembly 12;

when the motor driving assembly 13 is engaged with the adjustable bracket assembly 12, the driving force of the motor driving assembly 13 is transmitted to the adjustable bracket assembly 12.

The photovoltaic system 100 is further provided with a clutch assembly for switching the supply of energy consumed by pivoting some of the components in the adjustable support assembly 12. For example, when the motor drive assembly 13 is disengaged from the adjustable brace assembly 12, the driving force of the motor drive assembly 13 cannot be transmitted to the adjustable brace assembly 12 in a manner that is used to supply power, typically, from the photovoltaic panel assembly 11. When the motor driving assembly 13 is disengaged from the adjustable bracket assembly 12, the driving force of the motor driving assembly 13 cannot be transmitted to the adjustable bracket assembly 12, which is used for manual operation. By arranging the clutch assembly, the application range of the photovoltaic system 100 can be enlarged.

The present application further provides a regulatory bracket subsystem 101 for adjusting the orientation of a photovoltaic panel assembly 11, comprising:

an adjustable bracket assembly 12 supporting the photovoltaic panel assembly 11 and adjustably changing the orientation of the photovoltaic panel assembly 11 to receive light energy at an appropriate angle;

the motor driving component 13 is provided with an electrical interface which can be connected with the photovoltaic panel component 11;

the energy required by the motor driving component 13 is mainly input by the electrical interface.

The adjustable support assemblies 12, the motor drive assemblies 13, and the control assemblies 14 in the adjustable support subsystem 101 may be the same as or different from the photovoltaic system 100. The conditioning bracket subsystem 101 is primarily adapted for use with individually packaged products after the photovoltaic panel assembly 11 is peeled from the photovoltaic system 100. The manufacturer of the adjustable support subsystem 101 is typically the integrator of the adjustable support. The motor driving assembly 13 is provided with an electrical interface which can be connected with the photovoltaic panel assembly 11. The voltage range of the electrical interface may be a dc voltage interface below 48V. The specific form of the electrical interface can be various pin types. The type and form of the electrical interface of the motor drive assembly 13 obviously do not constitute a substantial limitation to the scope of protection of the present application.

Further, in a preferred embodiment provided herein, the adjustable bracket assembly 12 is supplied by the photovoltaic panel assembly 11 with more than 85% of the energy required for one adjustment cycle.

The application also provides a control component 14, which is used for controlling the motor driving component 13 to drive the adjustable bracket component 12 to actuate according to a preset movement mode;

the control component 14 is used for controlling the mode of supplying the electric energy to the motor driving component 13 by the photovoltaic panel component 11;

when the electric energy supplied by the photovoltaic panel assembly 11 is in the first state, the control assembly 14 controls the motor driving assembly 13 to drive the adjustable bracket assembly 12 to the first position.

The control component 14 is used for controlling the motor driving component 13 to drive the adjustable bracket component 12 to actuate according to a preset movement mode. In the specific implementation process of the present application, the specific implementer of the control component 14 may be a hardware producer of a single chip microcomputer, a microprocessor, and an integrated circuit board, or may be a software server that uses an integrated circuit editing program.

Further, in a preferred embodiment provided in the present application, the control assembly 14 further includes a communication interface for updating the operating program of the control assembly 14.

The communication interface is mainly used for updating the working program of the control component 14. Any communication interface having this function should be considered as not departing from the scope of protection of the present application. The communication interface may be physical or virtual. The communication interface of the entity can be represented as a USB interface, an RJ45 interface, a Type-C, lighting interface and the like in the implementation process. The virtual communication interface can be represented as a network virtual address, a calling function of the interface and the like in the implementation process.

Further, in a preferred embodiment provided in the present application, the control assembly 14 further includes a storage module for storing an operating program of the control assembly 14.

It will be appreciated that the storage module may be configured to reduce the problem of data loss during the operation of the control component 14, resulting in a higher operational stability of the control component. Also, when a problem occurs in the operation program of the control unit 14 and the network fails, the operation of the control unit 14 can be timely restored through the storage medium.

Further, the present application also provides a storage medium storing an operating program of the control unit 14, and when the operating program is executed, the following steps are implemented:

judging whether the electric energy which can be used by the motor driving component 13 is in a first state;

when the electric energy is in a first state, the motor driving assembly 13 drives the adjustable bracket assembly 12 to move to a first position;

wherein, the first state represents that the electric energy generated by the photovoltaic panel assembly 11 is enough to drive the adjustable bracket assembly 12 to move; or that the electrical energy generated and stored by the photovoltaic panel assembly 11 is sufficient to drive the movement of the adjustable support assembly 12.

The storage medium may be embodied in various forms such as a usb disk, an optical disk, and a cloud storage server when the present application is embodied.

Further, the present application also provides a motor driving subsystem 102 for driving the adjustable support assembly 12 to move so as to adjust the orientation of the photovoltaic panel assembly 11 by using the electric energy provided by the photovoltaic panel assembly 11, including:

the control assembly 14 is electrically connected with the motor driving assembly 13 and is used for controlling the motor driving assembly 13 to adjust the adjustable bracket assembly 12 according to a preset movement mode;

the control component 14 may be electrically connected to the photovoltaic panel component 11.

Further, in a preferred embodiment provided herein, the control assembly 14 is packaged inside the motor drive assembly 12.

Here, the motor drive subsystem 102 is embodied in the form of a motor drive assembly 13 present with the control assembly 14. The control assembly 14 may be connected to the motor drive assembly 13 through a mounting structure, or may be directly packaged in the motor drive assembly 13 during the manufacturing process. The motor drive subsystem 102 may facilitate centralized procurement and use by a user. In addition, when the manufacturer manufactures the motor driving assembly 13, the manufacturer can cooperatively detect and match the motor driving assembly and the motor driving assembly to improve the control precision of the motor driving assembly and the motor driving assembly.

Further, in a preferred embodiment provided herein, the first state indicates that the electric energy generated by the photovoltaic panel assembly 11 is sufficient to drive the adjustable support assembly 12 to move; or

Indicating that the photovoltaic module is generating and storing sufficient electrical energy to drive the movement of the adjustable support assembly 12.

The first state represents that the photovoltaic panel assembly 11 generates enough electric energy to drive the adjustable bracket assembly 12 to move; or that the electrical energy generated and stored by the photovoltaic panel assembly 11 is sufficient to drive the movement of the adjustable support assembly 12.

The first state may further limit the generation of electrical energy by the photovoltaic panel assembly 11 to be sufficient to move the adjustable leg assembly 12 to the first position. Or the photovoltaic panel assembly 11 generates and stores sufficient electrical energy to drive the adjustable leg assembly 12 to move to the first position.

The first position may correspond to an orientation within an area defined by the latitude and longitude of the day such that the photovoltaic panel assembly 11 is facing the height of the sun at 12 am, or an orientation that facilitates direct solar sunlight at 12 am onto the photovoltaic panel assembly 11. Of course the first position may also be defined by other spatio-temporal conditions.

In one embodiment provided herein, the sequence of first locations is determined based on the latitude and longitude of the photovoltaic system 100 and the weather of the solar terms. At several first positions in the sequence, the integration of the photoelectrically converted electrical energy of the photovoltaic panel assembly 11 over time is at a maximum. Specifically, for example, through simulation by simulation software, in a certain orientation, the integral of the electric energy photoelectrically converted by the photovoltaic panel assembly in 90 days in spring is the maximum value. Then the orientation given by the simulation software is set to the first position. Of course, the first position here varies with integration time.

When the electric energy supplied by the photovoltaic panel assembly 11 does not reach the first state, the motor driving assembly 13 does not drive the adjustable bracket assembly 12 to move. For example, in a rainy weather condition for a period of time, which results in insufficient power, the motor drive assembly 13 does not move until the next weather condition occurs that satisfies the efficiency of converting light energy into electric energy.

The present application further provides a method of operating a photovoltaic system 100, comprising the steps of:

wherein, the first state represents that the electric energy generated by the photovoltaic panel assembly 11 is enough to drive the adjustable bracket assembly 12 to move; or that the photovoltaic module generates and stores sufficient electrical energy to drive movement of the adjustable support assembly 12.

Further, in a preferred embodiment provided herein, the first location is determined according to a spatiotemporal condition in which the photovoltaic system 100 is located;

when the power available to the motor drive assembly 13 is restored to the first state, the motor drive assembly 13 drives the adjustable bracket assembly 12 to move to the first position at one time.

It will be appreciated that the photovoltaic system herein is completely devoid of external power sources and that the electrical power required for operation of the motor drive assembly is derived entirely from the instantly converted light energy of the photovoltaic panel assembly 11. The disposable state here means that the motor driving assembly 13 directly drives the adjustable bracket assembly 12 to move to the updated first position after the first position is updated at least once due to weather conditions. In this way, since the adjustable bracket assembly 13 moves directly to the latest first position, the photovoltaic panel assembly 11 is adjusted to the latest first position thereof accordingly, and the decrease of the photoelectric conversion efficiency caused by the mismatch of the first position can be prevented.

Further, in a preferred embodiment provided herein, the motor driving assembly 13 continuously drives the adjustable bracket assembly 12 to move to the first position;

wherein the adjustable support assembly 12 rotates at an angular velocity of less than 4 degrees per minute.

In the embodiment provided in the present application, since the photovoltaic panel assembly 11 is directly supported by the adjustable bracket assembly 12, and there is no speed reduction mechanism therebetween, the angular speed of the rotation of the adjustable bracket assembly 12 is equal to the angular speed of the rotation of the photovoltaic panel assembly 11. It can be understood that the motor driving assembly 13 continuously performs fine adjustment on the adjustable bracket assembly 12, and then the photovoltaic panel assembly 11, so as to further improve the photoelectric conversion efficiency of the photovoltaic system 100. For example, from the first position of the solar spring festival to the first position of the solar summer festival, the optimal first position between the two is continuously changed, and the orientation of the photovoltaic panel assembly 11 is correspondingly finely adjusted to improve the photoelectric conversion efficiency of the photovoltaic system 100. The angular velocity of rotation of adjustable bracket assembly 12 is less than 4 degrees per minute, can be according to this parameter requirement of adjustable bracket assembly 12, the power of the motor in motor drive assembly 13 is selected correspondingly to the customization low-power motor makes motor drive assembly 13 become possible in the large-scale deployment in photovoltaic system 100 of annual adjustment cycle.

Further, in a preferred embodiment provided herein, the motor driving assembly 13 intermittently drives the adjustable bracket assembly 12 to move to the first position;

In the embodiment provided in the present application, since the photovoltaic panel assembly 11 is directly supported by the adjustable bracket assembly 12, and there is no speed reduction mechanism therebetween, the angular speed of the rotation of the adjustable bracket assembly 12 is equal to the angular speed of the rotation of the photovoltaic panel assembly 11. It can be understood that, here, the motor driving assembly 13 intermittently drives the adjustable bracket assembly 12, so as to reduce the complexity of the control program of the motor driving assembly 13 and reduce the development cost of the control program of the motor driving assembly 13. The angular velocity of rotation of adjustable bracket assembly 12 is less than 4 degrees per minute, can be according to this parameter requirement of adjustable bracket assembly 12, the power of the motor in motor drive assembly 13 is selected correspondingly to the customization low-power motor makes motor drive assembly 13 become possible in the large-scale deployment in photovoltaic system 100 of annual adjustment cycle.

Further, in a preferred embodiment provided by the present application, an electrical connector is disposed between the photovoltaic panel assembly 11 and the control assembly 14.

The electrical connector is mainly used for quickly connecting and disconnecting the connection between the photovoltaic panel assembly 11 and the control assembly 14. The electric connector can be in various forms, such as a plug type, an absorption type, a thread matching type and an adhesion type. The specific implementation of the electrical connector obviously does not constitute a substantial limitation to the scope of protection of the present application.

Further, in a preferred embodiment provided herein, the motor driving assembly 13 includes a motor;

the motor is mounted to the support leg 122.

The motor is installed in supporting leg 122, and the motor centre of gravity position does not change, can promote the effective work of motor drive assembly 13.

the motor is mounted to the adjustment mechanism 124.

The motor mounting to the adjustment 124 may allow for a compact overall structure, reduce the space occupied, and facilitate maintenance of the photovoltaic system 100 by an operator.

the motor shell is matched and connected with the frame;

the motor shaft is matched and connected with the adjusting rod.

Referring to fig. 5, the adjustment mechanism 124 of the jack structure has a diamond-shaped frame and an adjustment rod passing through the frame. The adjusting rod rotates to drive the frame to deform, and further drive the bracket 123 to change an angle relative to the ground, and finally cause the orientation of the photovoltaic panel assembly 11 to change. The motor may include a motor housing and a motor shaft extending from within the motor housing. In a preferred embodiment provided herein, a motor housing is coupled to the frame. The motor casing and the frame can be matched and connected in various forms. In the present application, the motor casing is coupled to the frame via the flange. A simple transformation of the motor casing to the frame, as will be appreciated by the person skilled in the art, does not obviously depart from the scope of protection of the present application. The motor shaft is matched and connected with the adjusting rod. The motor shaft and the adjusting rod can be matched and connected together through various embedding structures. The jogged structures can be pin-hole matching, internal and external thread nesting and groove-bump matching. The motor shaft and the adjusting rod can be connected through riveting, welding and the like. The motor shaft and the adjusting rod can be connected together through various couplings. It is clear that these simple variants of the coupling do not depart from the essential scope of protection of the present application.

Further, in a preferred embodiment provided herein, the adjusting mechanism 124 includes a frame and an adjusting rod passing through the frame;

the motor shell is matched and connected with the frame;

the motor shaft and the adjusting rod are integrally formed.

Of course, the motor shaft and the adjusting lever can also be integrally formed here. The motor shaft and the adjusting rod can be obviously distinguished in the integral forming mode, and the motor shaft and the adjusting rod can also be provided with no distinguishing limit.

the photovoltaic panel assembly 11 shrouds the motor.

The photovoltaic panel component 11 covers the motor, so that the motor can be prevented from being corroded by weathering, and the service life of the motor is prolonged.

the motor is installed according to the following mode:

the motor shaft is vertically upward.

The motor shaft is vertical upwards, and the motor casing can regard as bearing part, and like this, the whole focus of motor is in the below, and the motor is difficult to drop, has promoted photovoltaic system 100 security.

the motor is installed according to the following mode:

the motor shaft extends in a horizontal direction.

The motor shaft extends in the horizontal direction, can directly act on the adjusting mechanism or use a very simple coupler or connecting structure to drive the adjusting mechanism, and has simple integral structure and low implementation cost.

the power of the motor is designed according to the following requirements:

The power of the motor in the motor driving assembly 13 can be selected correspondingly according to the parameter requirement of the photovoltaic panel assembly 11, so that a low-power motor is customized, large-scale deployment of the motor driving assembly 13 in the photovoltaic system 100 with an annual adjustment period becomes possible, and the implementation cost of the photovoltaic system 100 is reduced.

Due to the reduction of the power of the motor, the overall cost of the corresponding matched structures such as the speed reducing mechanism, the lubricating oil, the coil and the like can be obviously reduced, so that the large-scale deployment of the motor in the photovoltaic system 100 becomes possible.

the reduction ratio of the reduction mechanism is 1:100-1: 1000.

Further, in a preferred embodiment provided herein, the reduction ratio of the outer belt speed reduction mechanism in the photovoltaic system 100 is 1:3 to 1: 30.

Because of the reduction of the motor power, the speed reducing mechanism of the motor and the speed reducing mechanism of the motor driving assembly can be reduced, thereby reducing the whole realization cost.

Further, in a preferred embodiment provided herein, the control assembly 14 includes a communication module for updating the operating program of the control assembly 14.

The communication module can enable the control assembly 14 to be arranged inside the motor driving assembly 14 or outside the motor driving assembly 14, so that the selection of a user is enriched, and the application range of the photovoltaic system 100 is widened.

Further, the present application also provides a photovoltaic system 100, comprising:

an adjustable bracket assembly 12 comprising a bracket 123 for supporting the photovoltaic panel assembly 11, a support leg 122 carrying the bracket, and an adjustment mechanism 124 disposed between the bracket and the support leg;

and the motor is arranged on the adjusting mechanism 124 and is used for driving the adjustable bracket assembly 12 to actuate according to a preset movement mode.

The motor is installed in adjustment mechanism makes whole photovoltaic system 100 compact structure, reduces the occupation to the space, and the operating personnel of being convenient for overhauls.

the motor shell is matched and connected with the frame;

the motor shaft is matched and connected with the adjusting rod.

the motor shell is matched and connected with the frame;

the motor shaft and the adjusting rod are integrally formed.

the reduction ratio of the reduction mechanism is 1:100-1: 1000.

It should be noted that the effective angle of operation of the photovoltaic system adjustable bracket assembly in a daily period is more than or equal to 180 degrees every day; the total accumulated operation range is 25X 365X 180 DEG-1642500 DEG in 25 years of operation

The annual effective rotation angle of the adjustable bracket component of the photovoltaic system taking the year as a period is less than or equal to 180 degrees; the total accumulated operation range is 25 x 180 degrees to 4500 degrees after 25 years of operation

The working time of the motor is greatly reduced, and the cost of accessories selected by the motor, including a speed reducing mechanism, lubricating oil, a coil and the like, can be reduced.

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A photovoltaic system, comprising:

2. The photovoltaic system of claim 1, wherein an electrical connector is disposed between the photovoltaic panel assembly and the control assembly.

3. The photovoltaic system of claim 1, wherein the adjustable bracket assembly comprises:

the bracket is pivotally connected with the supporting leg;

4. The photovoltaic system of claim 3, wherein the motor drive assembly comprises a motor;

the motor is installed in the supporting leg.

5. The photovoltaic system of claim 3, wherein the motor drive assembly comprises a motor;

the motor is mounted to the adjustment mechanism.

6. The photovoltaic system of claim 5, wherein the adjustment mechanism includes a frame and an adjustment rod extending through the frame;

the motor shell is matched and connected with the frame;

the motor shaft is matched and connected with the adjusting rod.

7. The photovoltaic system of claim 5, wherein the adjustment mechanism includes a frame and an adjustment rod extending through the frame;

the motor shell is matched and connected with the frame;

the motor shaft and the adjusting rod are integrally formed.

8. The photovoltaic system of claim 1, wherein the motor drive assembly comprises a motor;

the photovoltaic panel assembly masks the motor.

9. The photovoltaic system of claim 1, wherein the motor drive assembly comprises a motor;

the motor is installed according to the following mode:

the motor shaft is vertically upward.

10. The photovoltaic system of claim 1, wherein the motor drive assembly comprises a motor;

the motor is installed according to the following mode:

the motor shaft extends in a horizontal direction.

11. The photovoltaic system of claim 1, wherein the motor drive assembly comprises a motor;

the power of the motor is designed according to the following requirements:

12. The photovoltaic system of claim 11, wherein the motor power is less than 60W.

13. The photovoltaic system of claim 1, wherein the motor incorporates a speed reduction mechanism;

the reduction ratio of the reduction mechanism is 1:100-1: 1000.

14. The photovoltaic system of claim 1, wherein the control assembly is packaged within the motor drive assembly.

15. The photovoltaic system of claim 1, wherein the control assembly includes a communication module for updating an operating program of the control assembly.

16. A photovoltaic system, comprising:

17. The photovoltaic system of claim 16, wherein the adjustment mechanism comprises a frame and an adjustment rod extending through the frame;

the motor shell is matched and connected with the frame;

the motor shaft is matched and connected with the adjusting rod.

18. The photovoltaic system of claim 17, wherein the adjustment mechanism comprises a frame and an adjustment rod extending through the frame;

the motor shell is matched and connected with the frame;

the motor shaft and the adjusting rod are integrally formed.

19. The photovoltaic system of claim 16, wherein the power of the motor is designed according to the following requirements:

20. The photovoltaic system of claim 16, wherein the motor power is less than 60W.

21. The photovoltaic system of claim 16, wherein the motor incorporates a speed reduction mechanism;

the reduction ratio of the reduction mechanism is 1:100-1: 1000.