CN105720903B - A kind of intelligent photovoltaic electricity generation system - Google Patents

Abstract

The invention relates to an intelligent photovoltaic power generation system, comprising a composite photovoltaic power generation blade (1), a hollow transparent plate (2), a blade rotating device (4) and an electric energy output device (5), and the composite photovoltaic power generation blade (1) is arranged in a hollow The interior of the transparent plate (2) is connected to the blade rotating device (4) and the electric energy output device (5) respectively. The smart photovoltaic power generation system also includes a mobile terminal and a micro control unit (6). The micro control unit (6) is connected to the blade rotating device The device (4), the electric energy output device (5) are connected to the mobile terminal, and the micro control unit (6) is provided with a power generation calculation module and a power generation calculation module. Compared with the prior art, the present invention integrates power generation, sunshade and heat insulation, realizes intelligent control, has a stable structure and is easy to maintain. It is of great significance to people's social production and life under the condition that the country strongly supports the photovoltaic industry. real economic benefits.

Description

An intelligent photovoltaic power generation system

technical field

The invention relates to an intelligent photovoltaic power generation system, especially a photovoltaic power generation system that realizes the functions of heat insulation, sunshade, power generation, and intelligent control, and has the effect of light transmission and beauty of glass doors and windows.

Background technique

With the development of my country's economic construction, glass doors and windows, glass curtain walls, and agricultural greenhouse buildings are becoming more and more common, and the requirements for building thermal insulation and energy saving are getting higher and higher. Wherever glass curtain walls are used, it is mandatory to use hollow low-e Glass, and a special sunshade system or curtains should be made in the glass room to protect privacy and play an auxiliary role in the adjustment of indoor light intensity, temperature and humidity. In addition, there are more and more modern agricultural greenhouses with constant temperature and humidity. The application of hollow transparent panel curtain wall, the state subsidizes solar power generation, and realizes the transmission of excess electricity to the national grid through grid connection with the national grid, making solar photovoltaics have realistic economic benefits.

The use of glass curtain walls greatly facilitates the beautification of people's lives, but it also has the following disadvantages:

1) It only plays the role of heat preservation and heat insulation, but cannot make full use of sunlight, wasting precious resources. Today, when the concept of energy saving and environmental protection is gradually becoming popular, it is particularly precious to make full use of sunlight.

2) The mobile Internet is getting more and more into our lives, home intelligence is becoming more and more common in modern life, it is very inconvenient to simply rely on manual indoor lighting.

3) For heat insulation, to prevent direct sunlight indoors, or to protect indoor privacy, an additional shading system is added.

Contents of the invention

The purpose of the present invention is to provide an intelligent photovoltaic power generation system that can utilize solar photovoltaic power generation to be integrated into the national grid to realize intelligent control of sunshade in order to overcome the above inconvenience.

The purpose of the present invention can be achieved through the following technical solutions:

The invention relates to an intelligent photovoltaic power generation system, which includes a composite photovoltaic power generation blade, a hollow transparent plate, a blade rotating device, a mobile terminal and an electric energy output device. The composite photovoltaic power generation blade is made of single crystal or polycrystalline or copper indium gallium selenide compound Photovoltaic materials and photovoltaic backplanes are composited, arranged inside the hollow transparent plate and respectively connected to the blade rotating device and the electric energy output device. The intelligent photovoltaic power generation system also includes a mobile terminal and a micro control unit. The micro control unit It is respectively connected with the blade rotating device, the electric energy output device and the mobile terminal, and is controlled by the APP control software in the mobile terminal. The micro control unit is equipped with a power generation calculation module and a power generation calculation module, and the sunlight passes through the single crystal Or polycrystalline or copper indium gallium selenide compound photovoltaic materials into electrical energy, each composite photovoltaic power generation blade is an independent power generation unit, which is collected to the power output device through the blade rotating device at both ends of the blade; the generated voltage is lower than 36 volts, which is harmful to the human body harmless;

The user can remotely control multiple blade rotating devices at the same time through the APP control software in the mobile terminal. After the mobile terminal sends the blade angle adjustment command to the micro control unit, the micro control unit controls the blade rotating device, thereby driving the composite photovoltaic power generation. The blades rotate synchronously as a whole, and the blade adjustment command includes the power generation mode setting, and the power generation mode includes timing on or off mode, fixed rotation angle mode, and rotation with the sun mode;

In the timing on or off mode, set the timing on or off of the composite photovoltaic power generation blade according to the user's needs;

In the fixed rotation angle mode, the angle of the composite photovoltaic power generation blade remains at the set value, thereby controlling the degree of shading;

In the mode of rotating with the sun, since the optimal power generation angle between the photovoltaic sheet and the sunlight is 28-32 degrees, the micro-control unit controls the blade rotation device to operate continuously with the set variation in the set time period, driving the composite photovoltaic The power generation blades rotate synchronously as a whole, and the blade angle with the largest instantaneous power generation is selected as the blade angle of the corresponding period, so that the composite photovoltaic power generation blades rotate with the change of the sunlight angle to achieve maximum power generation, and the micro control unit transmits the power generation and power generation in real time display to the mobile terminal.

The hollow transparent board is tempered glass, divided into front and rear layers, has the functions of heat insulation and sealing, and realizes all functions as a window or a curtain wall.

The composite photovoltaic power generation blades are provided with multiple pieces arranged in a venetian blind structure, and a single blade is composed of solar power generation components and resin materials, with gears and fixed shafts at both ends.

The blade rotating device includes a variable frequency motor connected to a micro control unit, a rack connected to the output shaft of the motor, and gears arranged at both ends of the composite photovoltaic power generation blade. The gear meshes with the rack, and the rack and the blade Vertically, when the motor rotates, it drives the rack and the gear to rotate synchronously, thereby driving the composite photovoltaic power generation blades to rotate synchronously as a whole.

The blade rotating device is made of metal, graphite and other conductors, has conductive function, and is connected with the electric energy output device, and is installed in the abdominal cavity of the special aluminum alloy outer frame outside the hollow transparent plate.

The composite photovoltaic power generation blade is penetrated with an internal control wire for rotating the blade, and the two ends of the internal control wire are coaxially connected with the gear. It is transmitted to the electric energy output device through the blade rotating device.

The power output device includes interconnected inverters and current output ports. The inverter is connected to the blade rotating device and is a micro-inverter that collects the current generated by the composite photovoltaic power generation blades to form a standardized output interface for connecting Mains power also facilitates the connection of multiple generating units.

The electric energy output device, micro control unit, internal control wires and composite photovoltaic power generation blades are sequentially assembled in a special aluminum alloy outer frame.

The intelligent photovoltaic power generation system is used for any one or more of doors, windows, building curtain walls, daylighting roofs and agricultural greenhouses.

Compared with the prior art, the present invention has the following advantages:

(1) The integration of intelligent power generation, sunshade and heat insulation is of great significance to the production and life of the people's society. After the blade angle adjustment command is sent to the micro control unit through the mobile terminal, the micro control unit controls the blade rotating device, thereby driving the blade Turn to realize remote control of blade angle, adjust power generation efficiency and indoor lighting; or micro-control unit automatically adjusts blade angle to achieve maximum power generation; blades play the role of sunshade when they are fully closed; real-time power generation can also be learned through mobile terminals Power, select working mode, realize intelligent and personalized control.

(2) If the hollow transparent board is made of glass, toughened glass is used, which is divided into two layers, front and back, and has the functions of heat insulation and sealing safety.

(3) There are multiple blades. The blades are composed of single crystal or polycrystalline or copper indium gallium selenide compound photovoltaic materials and photovoltaic backplanes. The blades are arranged in a venetian curtain structure, with a large light receiving area and convenient power generation adjustment.

(4) When the motor rotates, it drives the rack and gear to rotate synchronously, thereby driving the composite photovoltaic power generation blade to rotate synchronously as a whole. The rack and gear have good stability, the rack is perpendicular to the blade, the rotation is stable, and the structure is simple and easy to maintain.

(5) The blade rotating device has a conductive function and acts as a confluence cable to transmit electric energy to the inverter, saving installation space, and the generated voltage is lower than 36 volts, which is harmless to the human body.

(6) Internal control wires for blade rotation run through the blades of the composite photovoltaic power generation, which are used for blade rotation, and can also collect the current transformed by the blades, and transmit the current to the electric energy output device through the blade rotation device.

(7) The blades are composite photovoltaic power generation blades, which are placed in a closed hollow transparent plate to avoid dust and have a long service life.

(8) The micro-control unit calculates the power generation and power generation, and transmits it to the mobile terminal for display in real time. It is convenient to check the real-time power generation, and adjust the blade angle according to the power generation, so that the photovoltaic power generation module faces the sun at the best angle, achieving Highest conversion efficiency.

(9) The mobile terminal is equipped with a dedicated APP control software for users to use. Each mobile terminal can be connected to multiple blade rotating devices to realize the unified management of the intelligent photovoltaic power generation system of the building.

Description of drawings

FIG. 1 is a schematic diagram of the overall structure of the smart photovoltaic power generation system of the present embodiment;

Reference signs:

1 is a composite photovoltaic power generation blade; 2 is a hollow transparent plate; 3 is a special aluminum alloy frame; 4 is a blade rotation device; 5 is an electric energy output device; 6 is a micro control unit; 7 is an internal control wire, and 8 is a mobile terminal.

Detailed ways

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is carried out on the premise of the technical solution of the present invention, and detailed implementation and specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.

Example 1

The invention relates to an intelligent photovoltaic power generation system, comprising a composite photovoltaic power generation blade 1, a hollow transparent plate 2, a blade rotating device 4 and an electric energy output device 5, and the composite photovoltaic power generation blade 1 is arranged inside the hollow transparent plate 2 and connected with the blade rotating device respectively. 4 is connected to the electric energy output device 5, and the smart photovoltaic power generation system also includes a mobile terminal 8 and a micro control unit 6, the micro control unit 6 is respectively connected to the blade rotating device 4, the electric energy output device 5 and a cable, and the micro control unit 6 is connected to the mobile terminal 8 Wireless connection, the micro control unit 6 adopts a control chip, and the chip is provided with a power generation calculation module and a power generation calculation module. Each composite photovoltaic power generation blade 1 is an independent power generation unit. Sunlight is converted into electrical energy through single crystal or polycrystalline or copper indium gallium selenide compound photovoltaic materials, and the electrical energy is collected to the electrical energy output device 5 through the blade rotating device 4 at both ends of the blade. The generated voltage is lower than 36 volts, which is harmless to the human body;

After the mobile terminal 8 sends the blade angle adjustment command to the micro control unit 6, the micro control unit 6 controls the blade rotating device 4, thereby driving the composite photovoltaic power generation blade 1 to rotate synchronously as a whole. The blade adjustment command includes power generation mode setting, and the power generation mode includes timing on or off mode, fixed rotation angle mode, and sun rotation mode; in timing on or off mode, the user can control the software through the APP in the mobile terminal 8, and remotely control A plurality of blade rotating devices 4; since the optimal power generation angle between the power generating blades and sunlight is 28-32 degrees, in the rotation mode with the sun, the micro control unit 6 controls the blade rotating devices 4 according to the generated power, thereby driving the composite photovoltaic power generation blades 1 The overall synchronous rotation makes the composite photovoltaic power generation blade 1 rotate with the change of the sunlight angle, and the blade angle with the maximum instantaneous power generation power is selected as the blade angle of the corresponding period to realize maximum power generation. It is transmitted to the mobile terminal 8 for display. The power generation and instantaneous power generation are calculated by the power generation calculation module and the power generation calculation module respectively. The instantaneous power generation can be calculated according to the inverter conversion efficiency, power generation area, incident light irradiance, and ambient temperature etc., the power generation is the accumulation of instantaneous power generation within the effective sunshine time.

Hollow transparent plate 2 is tempered glass or other transparent plates such as acrylic, divided into two layers, front and rear, and has the functions of heat insulation and sealing.

Composite photovoltaic power generation blade 1 has multiple pieces arranged in a venetian blind structure. A single blade is composed of solar power generation components and resin materials, such as single crystal or polycrystalline or copper indium gallium selenide compound photovoltaic materials and photovoltaic backplanes into, the two ends are connected to the blade rotating device 4.

The blade rotating device 4 includes a frequency conversion control motor connected to the micro control unit 6, a rack connected to the output shaft of the motor, and gears arranged at both ends of the composite photovoltaic power generation blade 1. The gear meshes with the rack, and when the motor rotates, it drives the gear The bar and the gear rotate synchronously, thereby driving the composite photovoltaic power generation blade 1 to rotate synchronously as a whole.

The blade rotating device 4 has a conductive function and is installed on the aluminum alloy frame outside the hollow transparent plate 2. The composite photovoltaic power generation blade 1 runs through an internal control wire 7 for rotating the blade, and the two ends of the internal control wire 7 are coaxial with the gear. Connection, the wire can be used for blade rotation, and can collect the current transformed by the blade, and transmit the current to the electric energy output device 5 through the blade rotation device 4 .

The electric energy output device 5 includes an interconnected inverter and a current output port. The inverter is connected to the blade rotating device 4 and is a micro-inverter. Incorporating into the mains also facilitates the connection of multiple power generation units.

Single crystal or polycrystalline or copper indium gallium selenide compound photovoltaic material sheet 1 is assembled in special aluminum alloy outer frame 3 in sequence.

The intelligent photovoltaic power generation system of this embodiment can be used for doors, windows, building curtain walls, daylighting roofs, agricultural greenhouses, etc., and can replace ordinary glass doors, windows, building curtain walls, daylighting roofs, agricultural greenhouses, etc. Glass doors, windows, building curtain walls, lighting roofs, agricultural greenhouses, etc. Because it is located on the periphery of the building, it can maximize the use of light energy. At the same time, it has the function of sunshade, and it is especially suitable for the daylighting roof of large public buildings. It is a new type of energy-saving building product. Under the new situation of vigorously promoting solar power generation in the country, it has a great market prospect and benefits the country and the people.

Taking the Shanghai area as an example, the ordinary glass doors and windows are modified, assuming that the blade power generation area of each power generation system is 1.5m ² , the power generation power is 260 watts, and the annual average sunshine time in Shanghai area is 3.8 hours;

Average daily power generation: 3.8*260＝988(w h), about 1 kilowatt-hour;

The annual power generation is about 360 degrees, the state subsidy is 0.42 yuan/kWh, the Shanghai city subsidizes 0.4 yuan/kWh, and the office and commercial electricity is 1.14 yuan/kWh. The economic value of each kWh of electricity is: 0.42+0.4+1.14=1.96 yuan .

The total economic value created by power generation every year: 360*1.96=705.6 yuan, 20 years of state subsidies, 5 years of Shanghai subsidies.

For a power generation system with a power generation area of 1.5m ² , the transformation on the basis of the original glass doors and windows will cost about 1,500 yuan, and the cost can be recovered in two years, so it has great economic value and market prospects.

Claims (6)

1. a kind of intelligent photovoltaic electricity generation system, including composite photo voltaic power generation blade (1), hollow transparent plate (2), blade rotating device (4) and and and blade internal in hollow transparent plate (2) is arranged in power output device (5), the composite photo voltaic power generation blade (1) Tumbler (4) and power output device (5) connection, which is characterized in that the hollow transparent plate (2) is tempered glass, point Front and back two layers, the composite photo voltaic power generation blade (1) is equipped with multi-disc, is arranged in jalousie curtain structure, the intelligent photovoltaic Electricity generation system further includes mobile terminal and miniature control unit (6), and the miniature control unit (6) rotates with blade fill respectively Set (4), power output device (5) is connected with mobile terminal, the blade rotating device (4) includes and miniature control unit (6) motor connected, the rack that is connect with the motor output shaft and tooth at composite photo voltaic power generation blade (1) both ends is set Wheel, the wheel and rack engagement when motor rotates, drive rack and pinion to rotate synchronously, compound to drive Photovoltaic generation blade (1) Integral synchronous rotates, and generated energy computing module and power generation work(are equipped in the miniature control unit (6) Rate computing module；

After adjustment of blade angle instruction is sent to miniature control unit (6) by the mobile terminal, miniature control unit (6) is fixed When control blade rotating device (4) act, to drive composite photo voltaic power generation blade (1) timing Integral synchronous rotate, or according to Generated output controls blade rotating device (4) and acts, to driving composite photo voltaic power generation blade (1) with sunlight angle change Integral synchronous rotates, and realizes maximum power power generation, miniature control unit (6) is by generated energy and generated output real-time Transmission to movement Terminal is shown.

2. a kind of intelligent photovoltaic electricity generation system according to claim 1, which is characterized in that the blade rotating device (4) there is conducting function, and connect with power output device (5), be mounted on outside the external dedicated aluminium alloy of hollow transparent plate (2) On frame (3).

3. a kind of intelligent photovoltaic electricity generation system according to claim 1, which is characterized in that the composite photo voltaic power generation leaf Through the internal control conducting wire (7) for being useful for that blade is enabled to rotate, internal control conducting wire (7) both ends and gear in piece (1) It is coaxially connected.

4. a kind of intelligent photovoltaic electricity generation system according to claim 1, which is characterized in that power output device (5) includes The inverter and electric current delivery outlet of interconnection, the blade rotating device (4) have conducting function, the inverter with Blade rotating device (4) connects, and collects the electric current that composite photo voltaic power generation blade (1) generates and forms standardized output interface.

5. a kind of intelligent photovoltaic electricity generation system according to claim 3, which is characterized in that the power output device (5), micro-control unit (6), internal control conducting wire (7) and composite photo voltaic power generation blade (1) are assemblied in dedicated aluminium alloy outline border (3) in.

6. a kind of intelligent photovoltaic electricity generation system according to claim 1, which is characterized in that the intelligent photovoltaic power generation system System is for any one or more in door, window, building curtain wall, lighting roof and agricultural greenhouse.