CN203457099U

CN203457099U - Solar energy power supply system

Info

Publication number: CN203457099U
Application number: CN201320582201.8U
Authority: CN
Inventors: 王凤皋; 郭军
Original assignee: ZTE ENERGY (TANGSHAN) ENERGY-SAVING Co Ltd
Current assignee: ZTE ENERGY (TANGSHAN) ENERGY-SAVING Co Ltd
Priority date: 2013-09-18
Filing date: 2013-09-18
Publication date: 2014-02-26
Anticipated expiration: 2023-09-18

Abstract

The utility model relates to a solar energy power supply system, comprising a photovoltaic assembly, a control inversion integration machine, accumulators and a starting switch, wherein the control inversion integration machine is respectively in connection with the photovoltaic assembly, the accumulators and the starting switch and can be in connection with a load through an interface. The solar energy power supply system can provide sufficient and stable electric energy for each family.

Description

Solar power supply system

Technical Field

The utility model relates to a solar power supply technical field especially relates to a solar power system.

Background

Remote areas in the western part of China have complex landforms and dispersed population, and large-scale power plants or large-scale power transmission lines are difficult to build to meet the requirements of production and life, so that many areas lack basic power, and people's life is greatly disturbed. To solve this problem, small wind power plants are usually built in these areas, which often provide insufficient power to meet the needs of each household, and the voltage is unstable, and power failure often occurs.

Disclosure of Invention

The utility model aims to solve the technical problem that a solar power system is provided, can provide sufficient and stable electric energy to every family.

The utility model provides an above-mentioned technical problem's technical scheme as follows: a solar power system converts solar energy into electric energy to supply power to a load; characterized in that the system comprises: the photovoltaic module, the control inversion all-in-one machine, the storage battery and the starting switch; wherein,

and the control inversion all-in-one machine is respectively connected with the photovoltaic module, the storage battery and the starting switch and can be connected with the load through interfaces.

On the basis of the technical scheme, the utility model discloses can also do as follows the improvement:

further, still include: the photovoltaic module cabinet is used for loading the photovoltaic module, the storage battery cabinet is used for loading the storage battery, and the control and inversion integrated cabinet is used for loading the control and inversion integrated machine.

Further, the storage cabinet is used for loading standby equipment and tools.

Furthermore, the storage battery cabinet is supported below the photovoltaic component cabinet and the control inversion integrated cabinet, the bottom surface of the storage battery cabinet is a square plane, and a roller capable of being lifted and fixed is mounted at each corner of the bottom surface of the storage battery cabinet.

Furthermore, 2 cabinet body fixing slideways which are arranged in parallel in the horizontal direction are arranged in the photovoltaic module cabinet; the photovoltaic assembly comprises a photovoltaic bracket and a photovoltaic device; the photovoltaic support includes: the device comprises a cross beam, a bracket slideway and a bracket rotating shaft;

the support rotating shaft is a rotating shaft of the support slide way which rotates in a vertical plane, and two ends of the support rotating shaft are fixed at the tail ends of the cabinet body fixing slide ways close to the side cabinet doors of the photovoltaic component cabinet and are connected with 2 support slide ways which are arranged in parallel in a sliding mode;

two ends of the cross beam are respectively and vertically fixed with the tail ends of the 2 support slide ways;

the photovoltaic device is planar and is fixed on the support slideway through screws.

And furthermore, the support frame further comprises a support frame guard plate, and two ends of the support frame guard plate are respectively fixed with the tail ends, close to the cross beam, of the 2 support frame slide ways.

And furthermore, the support structure also comprises a support floor, wherein two ends of the support floor are respectively fixed with the tail ends, close to the cross beam, of the 2 support slideways, and the two ends of the support floor can be in contact with the ground.

Further, a storage battery bracket is fixed in the storage battery cabinet; the storage battery is fixed on the storage battery bracket.

The utility model has the advantages that: the utility model provides a photovoltaic module is after turning into the electric energy with solar energy, and control contravariant all-in-one stores this electric energy in the battery, opens the back at starting switch, and the electric energy release of control contravariant all-in-one in with the battery gives the load that the interface is connected, and this has realized the process of accumulate and power supply. Because western area solar energy resource is more abundant usually, as long as the capacity of battery is enough big, the time of accumulate is enough long, and this system is through the photoelectric conversion of certain time, can obtain the electric energy that satisfies every family's production life utilization to the technique that the battery supplied power to the load stability has been mature technique, consequently, the utility model discloses can utilize western area sufficient solar energy, provide sufficient and stable electric energy to every family. In addition, the system can be completely miniaturized, so that one household is provided, and the problem of power shortage caused by the fact that large-scale power stations cannot be built in western regions and residents are scattered is solved.

Drawings

Fig. 1 is a structural diagram of a solar power system according to the present invention;

fig. 2 is a structural diagram of an embodiment of a solar power system according to the present invention;

fig. 3 is a side view of a photovoltaic module in a solar power system according to the present invention;

fig. 4 is a top view of a photovoltaic support in a solar power system provided by the present invention.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

Fig. 1 is a structural diagram of a solar power system provided by the present invention, which supplies power to a load 103 after converting solar energy into electric energy. As shown in fig. 1, the system includes: the system comprises a photovoltaic module 101, a control inversion all-in-one machine 102, a storage battery 104 and a starting switch 105; the control and inversion integrated machine 102 is respectively connected with the photovoltaic module 101, the storage battery 104 and the starting switch 105, and can be connected with the load 103 through an interface.

The load 103 is a variety of electric devices, which may be ac or dc devices, and thus the interface may be an ac or dc outlet, or both.

The photovoltaic module 101 is a device that converts solar energy into electric energy using a photovoltaic effect. The photovoltaic effect is an effect in which when an object is irradiated with light, a charge distribution state in the object is changed to generate an electromotive force and an electric current. For example, when sunlight or other light irradiates a PN junction of a semiconductor, a voltage appears across the PN junction, which becomes a photovoltaic voltage, and this phenomenon is typically a photovoltaic effect.

The control and inversion integrated machine 102 integrates a controller and an inverter. The photovoltaic module 101 converts light energy into electric energy, and the electric energy is transmitted to the storage battery 104 for storage under the control of the control inversion all-in-one machine 102; when power is needed, the starting switch 105 is turned on, the inverter all-in-one machine 102 is controlled to be connected with the load 103, and therefore the electric energy in the storage battery 104 is supplied to the load 103 for use. Here, the main role of the control inverter all-in-one machine 102 is to perform charge and discharge management on the storage battery 104, and when the electric energy supply of the storage battery 104 is insufficient to meet the demand, the control inverter all-in-one machine 102 can automatically cut off the power supply path to the load 103, so as to perform over-discharge protection on the storage battery 104; when the storage battery 104 is fully charged, if the photovoltaic module 101 is still charging the storage battery 104, the control inverter all-in-one machine 102 can perform overcharge protection on the storage battery 104. Another function of the control/inverter integrated machine 102 is to perform ac/dc conversion, i.e., converting dc power into ac power when the battery 104 is discharged, for use by an ac load.

Therefore, the utility model provides a photovoltaic module is after becoming the electric energy with solar energy, and control contravariant all-in-one stores this electric energy in the battery, opens the back at starting switch, and the electric energy release of control contravariant all-in-one in with the battery gives the load that the interface is connected, and this has realized the process of accumulate and power supply. Because western area solar energy resource is more abundant usually, as long as the capacity of battery is enough big, the time of accumulate is enough long, and this system is through the photoelectric conversion of certain time, can obtain the electric energy that satisfies every family's production life utilization to the technique that the battery supplied power to the load stability has been mature technique, consequently, the utility model discloses can utilize western area sufficient solar energy, provide sufficient and stable electric energy to every family. In addition, the system can be completely miniaturized, so that one household is provided, and the problem of power shortage caused by the fact that large-scale power stations cannot be built in western regions and residents are scattered is solved.

This system utilizes photovoltaic module to convert solar energy into the electric energy, easily realizes the miniaturization to conveniently carry, uses as portable power source, consequently, the utility model provides a utilize light energy power generation's portable photovoltaic portable power source.

The system can also be used for carrying out split protection on all devices in the system, so that the system can further comprise a photovoltaic module cabinet for loading the photovoltaic module 101, a storage battery cabinet for loading the storage battery 104 and a control and inversion integrated cabinet for loading the control and inversion integrated machine 102. Fig. 2 shows a structure diagram of a specific embodiment of the present invention, as shown in fig. 2, the numbers of the photovoltaic module cabinet, the storage battery cabinet, and the control inversion cabinet are 201, 204, and 202, respectively. In addition, a holding cabinet 203 for loading spare equipment and tools (collectively 2031) may also be provided for the system. Here, the functions of the photovoltaic module cabinet 201, the storage battery cabinet 204, the control inverter integrated cabinet 202 and the storage cabinet 203 include, in addition to corresponding devices for loading and protecting the loading thereof, an integrated function of fixing the photovoltaic module cabinet 201, the storage battery cabinet 204, the control inverter integrated cabinet 202 and the storage cabinet 203, which are designed in a regular shape (cubic in the embodiment of fig. 2), together as shown in fig. 2, thereby realizing integration and miniaturization of the system, and facilitating transportation and movement.

As shown in fig. 2, the control inverter all-in-one machine 102 is placed in (or may be fixed to) the control inverter all-in-one machine cabinet 202, and a dc socket 2021, an ac socket 2022 and a start switch 105, which are used as interfaces, may be further provided outside the control inverter all-in-one machine cabinet 202.

As shown in fig. 2, the storage battery cabinet 204 is supported below the photovoltaic module cabinet 201 and the control and inversion integrated cabinet 202, and the bottom surface of the storage battery cabinet 204 is a square plane, so that a roller 205 capable of lifting and fixing can be respectively installed at each corner of the bottom surface of the storage battery cabinet 204, thereby further facilitating the overall transportation of the system.

The storage battery support 2042 is further fixed in the storage battery cabinet 204, and the storage battery 104 can be fixed on the storage battery support 2042, so that the storage battery 104 is protected. Of course, the number of battery holders 2042 cannot be less than the number of batteries 104.

Further, a battery cabinet safety lock 2041 is further provided on the cabinet door of the battery cabinet 204 to protect the safety of the battery 104. Similarly, the optoelectronic component cabinet 201 may also have a cabinet door, and a optoelectronic component cabinet safety lock 2014 may also be disposed on the cabinet door to protect the safety of the optoelectronic component 101.

In the embodiment of fig. 2, the storage battery cabinet 204 is located at the lowest layer of the other cabinets, the photovoltaic module cabinet 201 is located at the highest layer of the other cabinets, and the storage cabinet 203 and the control inversion integrated cabinet 202 are located between the storage battery cabinet 204 and the photovoltaic module cabinet 201 side by side, and the four cabinets are fixed together. In other embodiments, the optoelectronic component cabinet 201, the control and inversion integrated cabinet 202, the storage cabinet 203, and the storage battery cabinet 204 may have other position relationships, which are easily listed by enumeration, and are not described herein, but it should be noted that these position relationships are also within the scope of the present invention.

Fig. 3 is a side view of an embodiment of the photovoltaic module 101 of the present invention. In this embodiment, 2 cabinet body fixing slideways 3024 arranged in parallel in the horizontal direction are provided in the photovoltaic module cabinet 201; photovoltaic module 101 includes a photovoltaic support and a photovoltaic device 301. Figure 4 provides a top view of one embodiment of a photovoltaic mount. As shown in fig. 4, the photovoltaic support includes: a cross beam 3021, a bracket slide 3022, and a bracket rotating shaft 3025.

The rack slide 3022 needs to rotate in a vertical plane, and the rack rotating shaft 3025 is a rotating shaft for the rack slide 3022 to rotate in the vertical plane. The two ends of the support rotating shaft 3025 are fixed to the end of the cabinet fixing slide 3024, which refers to the end of the cabinet fixing slide 3024 close to the side cabinet door of the photovoltaic module cabinet 201. The support rotation shaft 3025 is also slidably connected to 2 support slide ways 3022 arranged in parallel, which ensures that the 2 support slide ways 3022 are limited in the cabinet fixing slide ways 3024 by the support rotation shaft 3025, can only slide along the cabinet fixing slide ways 3024, and when it needs to rotate in the vertical plane, it must also rotate with the support rotation shaft 3025 as the rotation shaft.

The two ends of the cross beam 3021 are vertically fixed with one end of each of the 2 bracket slideways 3022. Since the other end of the support slide 3022 must slide from the support rotation shaft 3025 along the cabinet body fixing slide 3024 toward the inside of the photovoltaic module cabinet 201, the end of the beam 3021 fixedly connected to the support slide 3022 is uniquely determined to be close to the end of the side cabinet door of the photovoltaic module cabinet 201 when the support slide 3022 is completely slid into the photovoltaic module cabinet 201, and not the other end.

The connection of the cross beam 3021 and the 2 support slideways 3022 builds the support framework of the photovoltaic device 301. As shown in fig. 3, the photovoltaic device 301 is planar and can be fixed on the bracket slide track 3022 by screws, as shown in fig. 4, and the photovoltaic device 3023 is indicated by corresponding screw holes.

In order to prevent the photovoltaic support from being damaged by collision when the support slide track 3022 slides into the photovoltaic module cabinet 201, the system further includes a support guard 3026, as shown in fig. 3, two ends of the support guard 3026 are respectively fixed with the ends of the 2 support slide tracks 3022 close to the cross beam 3021.

In addition, the system may further include a support floor 3027, both ends of which are respectively fixed to the ends of the 2 support slideways 3022 close to the cross beam 3021, and the support floor may contact with the ground to perform a supporting function.

In the embodiment of fig. 2-4, the number of photovoltaic supports and photovoltaic devices 301 attached thereto is 3, while in other embodiments, the number of photovoltaic supports and photovoltaic devices attached thereto is typically no more than 4, depending on the electrical requirements, the conversion efficiency of the photovoltaic devices 301, and the robustness of the system.

In fig. 3, a photovoltaic module in which a photovoltaic support connected to the support rotation shaft 3025 is located is referred to as a primary photovoltaic module, a photovoltaic module in which a photovoltaic support contactable with the ground through the support stay 3027 is located is referred to as a final photovoltaic module, and photovoltaic modules located in the primary photovoltaic module and the final photovoltaic module support are referred to as secondary photovoltaic modules. Obviously, only the support floor 3027 needs to be provided at the corresponding position on the final photovoltaic module. Sliding connection can also be achieved between the primary photovoltaic module and the secondary photovoltaic module and between the secondary photovoltaic module and the final photovoltaic module, and after all the adjacent photovoltaic modules enter the photovoltaic module cabinet 201, the adjacent photovoltaic modules can be in a staggered relationship from top to bottom, so that the internal space of the photovoltaic module cabinet 201 is fully utilized as far as possible. In fig. 2, to show that the number of the photovoltaic supports and the photovoltaic devices 301 (i.e., photovoltaic modules) connected thereto is 3, 2011-2013 is used to mark the primary photovoltaic module, the secondary photovoltaic module and the final photovoltaic module, so as to show the relationship between the primary photovoltaic module, the secondary photovoltaic module and the final photovoltaic module.

Under the different circumstances of region, user distribution, the power consumption condition also has difference, and this can cause the condition that great difference appears in the aspect such as the specification and the quantity ratio of photovoltaic module, battery in this system, and this kind of difference further influences again the utility model provides a specification selection of each cabinet body. Therefore, point out specially here, the utility model discloses do not do the restriction to the specification of the specification and the quantity ratio of photovoltaic module, battery and the specification of the cabinet body, no matter what kind of selection, all be in the utility model discloses an within the scope of protection.

The generating efficiency of this system is directly relevant with photovoltaic module's inclination, and the following factor needs to be considered comprehensively in the selection of inclination: (1) the latitude and longitude of the place where the system is located and the climate conditions are as follows: in general, the higher the latitude, the larger the inclination angle; (2) the selection of the inclination angle is changed along with the seasons; (3) time of day: the inclination angle of the sunlight at different time periods is changed, so that the inclination angle of the sunlight at the time needs to be referred when charging is carried out at different time periods. The selection of the inclination angle can be realized by adjusting the height of the roller at the bottom of the cabinet body and the angle of the floor supported by the photovoltaic module support.

The photovoltaic module can be a polycrystalline silicon solar cell module, the energy conversion efficiency is not lower than 14%, the design life is not less than 20 years, and the energy attenuation is not more than 20%; the photovoltaic module is sealed by adopting silicon resin; the deviation of the output power is within +/-5 percent; a bypass diode can be arranged, so that damage caused by power loss or local shadow can be reduced;

the storage battery is selected from colloid batteries with more cycle times, and the charge and discharge times are more than 1000; the self-discharge rate is required to be low, the storage battery is kept stand for 28 days at the room temperature of 25 ℃, the self-discharge rate of the storage battery is less than 1.8 percent, and the storage battery is free from maintenance; the usable temperature range is as wide as possible, the water-proof and moisture-proof water-proof; the sealing performance is as good as possible, no leakage and corrosion exist, and the sealing device is safe and environment-friendly; the explosion-proof exhaust system is safe and reliable, so that the phenomenon of bulging of a battery shell caused by overlarge pressure is eliminated when the storage battery is abnormally used.

Therefore, the utility model has the advantages of it is following:

(1) the utility model provides a photovoltaic module is after turning into the electric energy with solar energy, and control contravariant all-in-one stores this electric energy in the battery, opens the back at starting switch, and the electric energy release of control contravariant all-in-one in with the battery gives the load that the interface is connected, and this has realized the process of accumulate and power supply. Because western area solar energy resource is more abundant usually, as long as the capacity of battery is enough big, the time of accumulate is enough long, and this system is through the photoelectric conversion of certain time, can obtain the electric energy that satisfies every family's production life utilization to the technique that the battery supplied power to the load stability has been mature technique, consequently, the utility model discloses can utilize western area sufficient solar energy, provide sufficient and stable electric energy to every family. In addition, the system can be completely miniaturized, so that one household is provided, and the problem of power shortage caused by the fact that large-scale power stations cannot be built in western regions and residents are scattered is solved.

(2) The utility model discloses in, photovoltaic module cabinet, battery cabinet, the integrative rack of control contravariant and deposit cabinet design are regular shape and fixed together, and this integration and miniaturization of having realized the system are convenient for transport and remove.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A solar power system converts solar energy into electric energy to supply power to a load; characterized in that the system comprises: the photovoltaic module, the control inversion all-in-one machine, the storage battery and the starting switch; wherein,

2. The system of claim 1, further comprising: the photovoltaic module cabinet is used for loading the photovoltaic module, the storage battery cabinet is used for loading the storage battery, and the control and inversion integrated cabinet is used for loading the control and inversion integrated machine.

3. The system of claim 1 or 2, further comprising a holding cabinet for holding spare equipment and tools.

4. The system of claim 2, wherein the storage battery cabinet is supported below the photovoltaic module cabinet and the control inverter integrated cabinet, and the bottom surface of the storage battery cabinet is a square plane, and a roller capable of lifting and fixing is respectively installed at each corner of the bottom surface of the storage battery cabinet.

5. The system according to claim 4, wherein the photovoltaic module cabinet is internally provided with 2 cabinet body fixing slideways which are arranged in parallel in the horizontal direction; the photovoltaic assembly comprises a photovoltaic bracket and a photovoltaic device; the photovoltaic support includes: the device comprises a cross beam, a bracket slideway and a bracket rotating shaft;

6. The system of claim 5, further comprising a support guard having two ends respectively secured to the ends of the 2 support runners proximate the cross member.

7. The system of claim 5 or 6, further comprising a support floor having two ends respectively fixed to the ends of the 2 support runners near the cross member and contactable with the ground.

8. The system of claim 2, wherein a battery holder is secured within the battery cabinet; the storage battery is fixed on the storage battery bracket.