CN110259358B - Photovoltaic sun-shading shutter system and control method thereof - Google Patents
Photovoltaic sun-shading shutter system and control method thereof Download PDFInfo
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- CN110259358B CN110259358B CN201910517721.2A CN201910517721A CN110259358B CN 110259358 B CN110259358 B CN 110259358B CN 201910517721 A CN201910517721 A CN 201910517721A CN 110259358 B CN110259358 B CN 110259358B
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- 230000005855 radiation Effects 0.000 claims abstract description 53
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- 238000009423 ventilation Methods 0.000 claims description 11
- 230000007704 transition Effects 0.000 claims description 7
- 238000004321 preservation Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 238000004378 air conditioning Methods 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 230000006870 function Effects 0.000 description 6
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B7/00—Special arrangements or measures in connection with doors or windows
- E06B7/02—Special arrangements or measures in connection with doors or windows for providing ventilation, e.g. through double windows; Arrangement of ventilation roses
- E06B7/08—Louvre doors, windows or grilles
- E06B7/084—Louvre doors, windows or grilles with rotatable lamellae
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
- E06B9/26—Lamellar or like blinds, e.g. venetian blinds
- E06B9/28—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
- E06B9/26—Lamellar or like blinds, e.g. venetian blinds
- E06B9/38—Other details
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
- E06B9/26—Lamellar or like blinds, e.g. venetian blinds
- E06B9/38—Other details
- E06B9/386—Details of lamellae
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S20/00—Supporting structures for PV modules
- H02S20/30—Supporting structures being movable or adjustable, e.g. for angle adjustment
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
- E06B2009/2476—Solar cells
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/10—Photovoltaic [PV]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
Abstract
The invention relates to a photovoltaic sun-shading louver system and a control method thereof, and belongs to the technical field of photovoltaic control. The system comprises a movable shutter, a photovoltaic solar panel assembly, a temperature monitor, a light intensity monitor and an automatic controller; the movable shutter is used for blocking light or ventilating indoors and outdoors through the unfolding state of the shutter; the temperature monitor is used for monitoring the gradual time value of the outdoor air temperature to obtain the average value of the daily air temperature; the light intensity monitor is used for monitoring a local real-time solar altitude angle gradual time value and a solar radiation intensity real-time monitoring value; and the automatic controller is used for controlling the unfolding states of the shutters of the upper half part and the lower half part and the shutter angles of the unfolding parts according to the gradual time value of the outdoor air temperature, the gradual time value of the local real-time solar altitude angle and the real-time solar radiation intensity monitoring value. The invention effectively improves the thermal performance of the house external window, improves the comfort level of the indoor thermal environment and reduces the energy consumption of heating and air conditioning of the house.
Description
Technical Field
The invention relates to the technical field of photovoltaic control, in particular to a photovoltaic sun-shading louver system and a control method thereof.
Background
In a residential building, sunlight enters the room through transparent building enclosures such as an external window and a skylight. In cold, hot and cold summer, and warm summer and winter areas, the air conditioning cooling load due to the heat gain from solar radiation accounts for approximately 1/3 total cooling load. More than 90% of the heat entering the room is radiated. The sun-shading outside the building is one of the most effective means for controlling solar radiant heat, and the sun-shading component can block 80 percent of radiant heat outside the building through reflection of sunlight long-wave radiation, so that the cold load of the air conditioner of the building is greatly reduced. In addition, reasonable and effective sun-shading measures can also have good regulating effect on the light environment in the room.
The house in the hot summer and the cold winter areas of China has the requirements of heat insulation and ventilation in summer and the requirements of heat preservation and solar heat utilization in winter, but the working mode of the existing sun-shading shutter system cannot effectively improve the thermal performance of the enclosure structure of the house so as to improve the indoor heat comfort level and achieve the purposes of building energy conservation and solar energy utilization.
Disclosure of Invention
In view of the foregoing analysis, the present invention aims to provide a photovoltaic sun blind system and a control method thereof, so as to achieve the modularization of the photovoltaic sun blind system, prevent radiation from entering a room to achieve the purpose of reducing consumption, and simultaneously achieve the composite functions of capacity and dimming, and have the advantages of saving occupied space, reducing investment and loss of a power transmission line, and replacing or partially replacing building materials, thereby effectively reducing the air conditioning cooling load required for ensuring a comfortable indoor environment.
The purpose of the invention is mainly realized by the following technical scheme:
the invention provides a photovoltaic sun-shading shutter system which comprises a movable shutter, a photovoltaic solar panel assembly, a temperature monitor, a light intensity monitor and an automatic controller, wherein the movable shutter is arranged on the movable shutter;
the movable shutter is used for blocking light or ventilating indoors and outdoors through the unfolding state of the shutter, is divided into an upper half part and a lower half part, and presents the same or different shutter states at the same time;
the temperature monitor is used for monitoring the gradual time value of the outdoor air temperature to obtain the average value of the daily air temperature;
the light intensity monitor is used for monitoring a local real-time solar altitude angle gradual time value and a solar radiation intensity real-time monitoring value;
and the automatic controller is used for controlling the unfolding states of the shutters of the upper half part and the lower half part and the shutter angles of the unfolding parts according to the gradual time value of the monitored outdoor air temperature, the local real-time solar altitude angle gradual time value and the real-time solar radiation intensity monitoring value.
Further, the system further comprises a remote controller, the function options comprise shutter sun shading, light regulation and capacity utilization, the shutter is completely unfolded when the shutter sun shading is manually controlled in a remote mode, the upper half part of the shutter is folded and the lower half part of the shutter is unfolded to block light or the upper half part of the shutter is unfolded to block light and the lower half part of the shutter is folded when the light is regulated, and the shutter is completely folded when the capacity is utilized.
Further, the automatic controller obtains the average value of the daily air temperature after monitoring the gradual time value of the outdoor air temperature, and the average value is compared with a preset temperature threshold value to determine the working condition of the movable shutter; the working conditions of the movable shutter comprise summer working conditions, winter working conditions and transitional season working conditions;
the automatic controller sends out an instruction to automatically control the unfolding state of the shutter according to the working condition of the movable shutter and the real-time solar radiation intensity monitoring value, and automatically adjusts the shutter angle of the unfolded part according to the local real-time solar altitude angle time-by-time calculation value;
the summer working condition comprises that the louver enters a fully-unfolded mode, the louver enters an upper half unfolding light-blocking mode and a lower half folding mode, the louver enters an upper half folding light-blocking mode and a lower half unfolding light-blocking mode, and the louver completely folds to keep an indoor and outdoor ventilation mode;
the working conditions in winter comprise that the shutter enters an upper half unfolding and light blocking mode and a lower half folding mode, the shutter enters the upper half folding mode and the lower half unfolding and light blocking mode, and the shutter enters a complete unfolding mode;
the transitional season conditions include that the shutter enters an upper half part retracting mode and a lower half part unfolding light blocking mode and a fully retracted mode of the shutter.
Further, the temperature threshold TS under the summer working condition is set to be 24-28 ℃, and the temperature threshold TW under the winter working condition is set to be 12-16 ℃;
when the outdoor average air temperature T01> TS for 3 consecutive days, the shutter automatically enters the summer working condition; when the outdoor average air temperature T02< TW for 3 consecutive days, the shutter automatically enters the winter working condition, and when the outdoor average air temperature T03 is between TS and TW, the shutter enters the transition season working condition.
Further, based on the control method of the system, the unfolding state of the louver is controlled according to the outdoor real-time solar radiation intensity monitoring value Qin and the action threshold value Qm, and the value α is calculated one by one according to the local real-time solar altitude angle0Morning action threshold θ1Midday action threshold θ2And afternoon action threshold θ3To control the louver angle of the unfolded part;
the action threshold Qm comprises an action threshold Qm1 under a summer condition and an action threshold Qm2 under a winter condition;
the morning action threshold value theta1Including the early morning state louver angle value theta under the summer working condition1SMorning state shutter angle value theta under working condition in winter1WThe shutter angle value theta of the early morning state under the working condition of the transitional season1T；
The noon action threshold θ2Including the midday state and night state louver angle values theta under the summer working condition2SMidday state and night state shutter angle values theta under winter working condition2W；
The afternoon action threshold θ3Including the value theta of the louver angle in the afternoon state under the working condition of summer3SAnd the shutter angle value theta of the afternoon state under the working condition in winter3WAnd the shutter angle value theta of the afternoon state under the working condition of the transitional season3T。
Further, under the working condition of summer, when the real-time solar radiation intensity monitoring value Qin is greater than Qm1, the shutter enters a fully-unfolded mode; when 0< Qin < Qm1, the blind enters a top half deployed light blocking and bottom half stowed mode; when Qin is 0, the louver is completely folded at night, and the indoor and outdoor ventilation mode is kept.
Further, when α0When the angle is less than 27 degrees, the east side window shutter automatically enters an upper half part folding mode and a lower half part unfolding light blocking mode, and the shutter angle of the unfolding part is adjusted to be theta1S；
When the angle is less than or equal to 27 degrees and less than or equal to α degrees0When the angle is less than 153 degrees, the states of the upper half part and the lower half part of the shutter are determined by the intensity of solar radiation, and the shutter angle of the unfolding part is adjusted to theta2S；
When the angle is 153- α ≦ 153 ≦0When the angle is less than 180 degrees, the west side window shutter automatically enters an upper half part retracting mode and a lower half part unfolding light blocking mode, and the shutter angle of the unfolding part is theta3S；
The upper half part and the lower half part of the night shutter are determined by the intensity of solar radiation, and the shutter angle of the unfolding part is adjusted to theta2S。
Further, under the working condition in winter, when the solar radiation monitoring value Qin is larger than Qm2, the louver enters an upper half unfolding light blocking mode and a lower half folding mode; when Qin is more than or equal to 0 and less than Qm2, the shutter enters the fully-unfolded mode.
Further, when α0When the angle is less than 27 degrees, the east side window shutter automatically enters an upper half part folding mode and a lower half part unfolding light blocking mode, and the shutter angle of the unfolding part is adjusted to be theta1W；
When the angle is less than or equal to 27 degrees and less than or equal to α degrees0When the angle is less than 153 degrees, the states of the upper half part and the lower half part of the shutter are determined by the intensity of solar radiation, and the shutter angle of the unfolding part is adjusted to theta2W；
When the angle is 153- α ≦ 153 ≦0When the angle is less than 180 degrees, the west side window shutter automatically enters an upper half part retracting mode and a lower half part unfolding light blocking mode, and the shutter angle of the unfolding part is adjusted to theta3W；
The upper half part and the lower half part of the night shutter are determined by the intensity of solar radiation, and the shutter angle of the unfolding part is adjusted to theta2W90 deg. higher than the otherThermal insulation and sealing properties of the window.
Further, during the transition season, when α0When the angle is less than 27 degrees, the east side window shutter automatically enters an upper half part folding mode and a lower half part unfolding light blocking mode, and the shutter angle of the unfolding part is adjusted to be theta1T；
When the angle is less than or equal to 27 degrees and less than or equal to α degrees0When the angle is less than 153 degrees, the shutter is completely retracted;
when the angle is 153- α ≦ 153 ≦0When the angle is less than 180 degrees, the west side window shutter automatically enters an upper half part retracting mode and a lower half part unfolding light blocking mode, and the shutter angle of the unfolding part is adjusted to theta3T。
The technical scheme of the invention has the beneficial effects that: the invention discloses a photovoltaic sun-shading louver system and a control method thereof, wherein a novel modularized photovoltaic sun-shading louver system is adopted, the composite functions of capacity and dimming are achieved while the aim of reducing consumption is achieved by preventing radiation from entering a room, the system has the advantages of saving occupied space, reducing investment and loss of a power transmission line, replacing or partially replacing building materials and the like, and the air-conditioning cold load required for ensuring a comfortable indoor environment is effectively reduced.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention, wherein like reference numerals are used to designate like parts throughout.
Fig. 1 is a schematic structural diagram of a photovoltaic sun-shading louver system according to an embodiment of the present invention;
FIG. 2 is a view showing a louver state of the louver according to the embodiment of the present invention;
fig. 3 is a flowchart of a control method of a photovoltaic sun shading louver system according to an embodiment of the present invention.
Detailed Description
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate preferred embodiments of the invention and together with the description, serve to explain the principles of the invention and not to limit the scope of the invention.
In an embodiment of the present invention, as shown in fig. 1, a photovoltaic sun blind system includes a movable blind 1, a photovoltaic solar panel assembly 2, a temperature monitor 3, a light intensity monitor 4 and an automatic controller 5;
the movable blind window 1 is used for light blocking or indoor and outdoor ventilation through the unfolding state of the blind window, is divided into an upper half part and a lower half part, and simultaneously presents the same or different blind window states;
the temperature monitor 3 is used for monitoring the gradual time value of the outdoor air temperature to obtain the average value of the daily air temperature;
the light intensity monitor 4 is used for monitoring a local real-time solar altitude angle gradual time value and a solar radiation intensity real-time monitoring value;
and the automatic controller 5 is used for controlling the unfolding states of the shutters of the upper half part and the lower half part and the shutter angles of the unfolding parts according to the gradual time value of the monitored outdoor air temperature, the gradual time value of the local real-time solar altitude angle and the real-time solar radiation intensity monitoring value.
Compared with the prior art, the invention provides a reasonable and convenient modularized photovoltaic sun-shading louver system, so that the aim of reducing consumption is fulfilled when radiation is prevented from entering a room, the combined functions of capacity and dimming are achieved, and the system has the advantages of saving occupied space, reducing investment and loss of a power transmission line, replacing or partially replacing building materials and the like.
The photovoltaic solar panel assembly is used for collecting solar energy, converting the collected solar energy into electric energy for storage, and providing driving power for the photovoltaic sun shading shutter system. That is to say, when the shutter is unfolded to play the role of shading, the photovoltaic solar panel component can convert solar energy into electric power at the same time and store the electric power in the electricity storage equipment. The driving power can be provided by the solar energy collected and converted by the photovoltaic solar panel component.
The output end of the photovoltaic solar panel assembly is respectively connected with the input ends of the temperature monitor, the light intensity monitor and the automatic controller, the output ends of the temperature monitor and the light intensity monitor are respectively connected with the input end of the automatic controller, and the output end of the automatic controller is connected with the movable shutter, which is shown in fig. 1.
In one embodiment of the invention, the system further comprises a remote controller, the function options comprise shutter sunshade, light regulation and capacity utilization, the shutter is completely unfolded when the shutter sunshade is manually controlled remotely, the upper half part of the shutter is folded and the lower half part of the shutter is unfolded to block light or the upper half part of the shutter is unfolded to block light and the lower half part of the shutter is folded when the light is regulated, and the shutter is completely folded when the capacity is utilized. That is, the unfolding states of the upper half part and the lower half part of the louver can be automatically adjusted and simultaneously controlled by a human remote control.
When the selected shutter sunshade is selected, the controller receives a remote instruction and controls the shutter to be completely unfolded.
When the option light adjustment is selected, the controller receives a remote instruction and controls the upper half part of the blind window to be folded and the lower half part to be unfolded and light-blocking or the upper half part to be unfolded and light-blocking and the lower half part to be folded according to the working condition of the movable blind window.
When the option capacity utilization is selected, the controller receives a remote instruction and controls the shutter state to be completely folded.
According to a specific embodiment of the invention, the automatic controller obtains an average value of the daily air temperature after monitoring the gradual time value of the outdoor air temperature, and determines the working condition of the movable blind window after comparing the average value with a preset temperature threshold; the working conditions of the movable shutter comprise summer working conditions, winter working conditions and transitional season working conditions;
the automatic controller sends out an instruction to automatically control the unfolding state of the shutter according to the working condition of the movable shutter and the real-time solar radiation intensity monitoring value, and automatically adjusts the shutter angle of the unfolded part according to the local real-time solar altitude angle time-by-time calculation value;
specifically, after the automatic controller determines the working condition of the movable shutter, under the corresponding working condition, the shutter is controlled to enter the corresponding shutter state after the solar radiation intensity real-time monitoring value is compared with the action threshold value, and meanwhile, the shutter angle in the unfolding state is adjusted by calculating the local real-time solar altitude angle time-by-time value.
If the solar radiation intensity real-time monitoring value is larger than the action threshold value in summer under the working condition of summer, the shutter enters a fully unfolding mode; when the real-time solar radiation intensity monitoring value is smaller than the action threshold value in summer, the shutter enters an upper half unfolding light blocking mode and a lower half folding mode; when the real-time solar radiation intensity monitoring value is equal to zero, the shutter is completely retracted. In order to prevent glare from affecting indoor people, and simultaneously along with the change of the magnitude of the gradual time value of the local real-time solar altitude angle, the automatic controller automatically adjusts the louver angle to be in the early morning state, the noon state and the afternoon state according to the set early morning, noon and afternoon action threshold values, and the louver state is determined by the solar radiation intensity in the night state.
If the solar radiation intensity real-time monitoring value is larger than the action threshold value in winter under the working condition in winter, the shutter enters an upper half unfolding and light blocking mode and a lower half folding mode; when the real-time solar radiation intensity monitoring value is smaller than the action threshold value in winter and is larger than or equal to zero, the shutter enters a full unfolding mode. Meanwhile, the size of the local real-time solar altitude gradual value changes, the automatic controller automatically adjusts the shutter angle to a morning state, a noon state and an afternoon state according to the set action threshold values in the morning, the noon and the afternoon, and the shutter state is determined according to the solar radiation intensity in the night state.
If under the working condition of a transitional season, the external window does not need to be insulated or insulated, so that the glare prevention only needs to be considered, namely the automatic controller automatically adjusts the louver angle to be in the early morning state, the noon state and the afternoon state according to the set action threshold values of the early morning, the noon and the afternoon according to the change of the gradual time value of the local real-time solar altitude angle.
The summer working condition comprises that the louver enters a fully-unfolded mode, the louver enters an upper half unfolding light-blocking mode and a lower half folding mode, the louver enters an upper half folding light-blocking mode and a lower half unfolding light-blocking mode, and the louver completely folds to keep an indoor and outdoor ventilation mode;
the working conditions in winter comprise that the shutter enters an upper half unfolding and light blocking mode and a lower half folding mode, the shutter enters the upper half folding mode and the lower half unfolding and light blocking mode, and the shutter enters a complete unfolding mode;
the transitional season conditions include that the shutter enters an upper half part retracting mode and a lower half part unfolding light blocking mode and a fully retracted mode of the shutter.
According to a specific embodiment of the invention, the temperature threshold TS under the summer working condition is set to be 24-28 ℃, and the temperature threshold TW under the winter working condition is set to be 12-16 ℃;
when the outdoor average air temperature T01> TS for 3 consecutive days, the shutter automatically enters the summer working condition; when the outdoor average air temperature T02< TW for 3 consecutive days, the shutter automatically enters the winter working condition, and when the outdoor average air temperature T03 is between TS and TW, the shutter enters the transition season working condition.
The temperature threshold is set in consideration of the comfort level of the environment in the building.
An embodiment of the present invention, as shown in fig. 2, is a control method based on the system, that is, a control method based on a novel modular photovoltaic sun-shading louver system for sun-shading, consumption reduction, light regulation and capacity utilization, comprising the following steps:
controlling the unfolding state of the louver according to the outdoor real-time solar radiation intensity monitoring value Qin and the action threshold value Qm, and calculating the value α one by one according to the local real-time solar altitude angle0Morning action threshold θ1Midday action threshold θ2And afternoon action threshold θ3To control the louver angle of the unfolded part;
the action threshold Qm comprises an action threshold Qm1 under a summer condition and an action threshold Qm2 under a winter condition;
the morning action threshold value theta1Including the early morning state louver angle value theta under the summer working condition1SMorning state shutter angle value theta under working condition in winter1WThe shutter angle value theta of the early morning state under the working condition of the transitional season1T；
The noon action threshold θ2Including the midday state and night state louver angle values theta under the summer working condition2SMidday state and night state shutter angle values theta under winter working condition2W；
The afternoon action threshold θ3Including the value theta of the louver angle in the afternoon state under the working condition of summer3SAnd the shutter angle value theta of the afternoon state under the working condition in winter3WAnd the shutter angle value theta of the afternoon state under the working condition of the transitional season3T。
Specifically, first, the automatic control mode start outdoor temperature thresholds TS and TW are set, the outdoor temperature T0 is measured, and then compared with the temperature thresholds, and the outdoor average temperature T01 for 3 consecutive days>TS, the shutter automatically enters the summer working condition; outdoor average air temperature T02 for 3 consecutive days<TW, automatically entering winter working condition, entering transition season working condition when outdoor average air temperature T03 is between TS and TW, calculating local real-time solar altitude gradual time value α0And judge α0Size according to α0The unfolding states of the shutters in different directions and the shutter angles of the unfolding parts are determined under three conditions of summer working conditions, winter working conditions and transitional season working conditions, and the shutter state display diagram of the shutters shown in fig. 2 is specifically referred.
In an embodiment of the present invention, as shown in fig. 2, in summer, when the solar radiation intensity real-time monitoring value Qin > Qm1, the louver enters the fully-unfolded mode, which is shown in the second right of fig. 2; when 0< Qin < Qm1, the blind enters the upper half deployed light blocking and lower half stowed mode, see the blind state shown in the left second of fig. 2; when Qin is 0, the louver is completely retracted after entering night, and the indoor and outdoor ventilation mode is maintained, referring to the louver state shown in the left of fig. 2.
It should be noted that, as the local real-time solar altitude changes from time to time, the blinds in different orientations either maintain or change the corresponding blinds status, as described below.
One embodiment of the present invention is shown in FIG. 2 when α0When the angle is less than 27 degrees, the east side window shutter automatically enters an upper half part folding mode and a lower half part unfolding light blocking mode, referring to a shutter state shown in the right part of figure 2, and the shutter angle of the unfolding part is adjusted to be theta1SThat is, the shutter unfolding state is the early morning state;
when the angle is less than or equal to 27 degrees and less than or equal to α degrees0If the angle is less than 153 degrees, the states of the upper half part and the lower half part of the blind are determined by the solar radiation intensity, or the right two of the figure 2, or the left one of the figure 2, and the louver angle of the unfolding part is adjusted to theta2SThat is, the unfolding state of the shutters is the noon state;
specifically, when the solar radiation intensity real-time monitoring value Qin > Qm1, the blind enters the fully deployed mode, see the blind state shown in the second right of fig. 2; when 0< Qin < Qm1, the blind enters the upper half deployed light blocking and lower half stowed mode, see the blind state shown in the left second of fig. 2; when Qin is 0, the louver is completely retracted after entering night, and the indoor and outdoor ventilation mode is maintained, referring to the louver state shown in the left of fig. 2.
When the angle is 153- α ≦ 153 ≦0When the angle is less than 180 degrees, the west side window shutter automatically enters an upper half part folding mode and a lower half part unfolding light blocking mode, see the right side of the shutter state shown in the figure 2, and the shutter angle of the unfolding part is theta3SThat is, the shutter unfolding state is the afternoon state;
the upper half part and the lower half part of the night blind are determined by the solar radiation intensity, or the right two of figure 3, or the left two of figure 2, or the left one of figure 2, and the blind angle of the unfolding part is adjusted to theta2SThat is, the shutter unfolding state is the night state.
Specifically, when the solar radiation intensity real-time monitoring value Qin > Qm1, the blind enters the fully deployed mode, see the blind state shown in the second right of fig. 2; when 0< Qin < Qm1, the blind enters the upper half deployed light blocking and lower half stowed mode, see the blind state shown in the left second of fig. 2; when Qin is 0, the louver is completely retracted after entering night, and the indoor and outdoor ventilation mode is maintained, referring to the louver state shown in the left of fig. 2.
In an embodiment of the present invention, as shown in fig. 2, under the winter condition, when the solar radiation monitoring value Qin > Qm2, the louver enters the upper half unfolding and light blocking mode and the lower half folding mode, which is the louver state shown in the left two of fig. 2; when 0 & ltoreq Qin & ltqm 2, the blind enters the fully deployed mode, see the blind state shown in the right two of FIG. 2.
One embodiment of the present invention is shown in FIG. 2 when α0When the angle is less than 27 degrees, the east side window shutter automatically enters an upper half part folding mode and a lower half part unfolding light blocking mode, referring to a shutter state shown in the right part of figure 2, and the shutter angle of the unfolding part is adjusted to be theta1WThat is, the shutter unfolding state is the early morning state;
when the angle is less than or equal to 27 degrees and less than or equal to α degrees0If the angle is less than 153 DEG, the state of the upper half part and the lower half part of the blind is determined by the intensity of solar radiation, or the state of the blind is shown in the left second of figure 2, or the state of the blind is shown in the right second of figure 2, and the blind angle of the unfolding part is adjusted to theta2WThat is, the unfolding state of the shutters is the noon state;
specifically, when the solar radiation monitoring value Qin > Qm2, the louver enters the upper half deployed light blocking and lower half stowed mode, see the louver state shown in the left second of fig. 2; when 0 & ltoreq Qin & ltqm 2, the blind enters the fully deployed mode, see the blind state shown in the right two of FIG. 2.
When the angle is 153- α ≦ 153 ≦0When the angle is less than 180 degrees, the west side window shutter automatically enters an upper half part folding mode and a lower half part unfolding light blocking mode, referring to a shutter state shown in the right part of fig. 2, and the shutter angle of the unfolding part is adjusted to theta3WThat is, the shutter unfolding state is the afternoon state;
the upper half part and the lower half part of the night blind are determined by the intensity of solar radiation, or the blind state shown in the left second of fig. 2, or the blind state shown in the right second of fig. 2, and the blind angle of the unfolding partIs adjusted to theta2WThe heat preservation performance and the sealing performance of the external window are improved when the angle is 90 degrees, namely the unfolding state of the louver is the night state.
Specifically, when the solar radiation monitoring value Qin > Qm2, the louver enters the upper half deployed light blocking and lower half stowed mode, see the louver state shown in the left second of fig. 2; when 0 & ltoreq Qin & ltqm 2, the blind enters the fully deployed mode, see the blind state shown in the right two of FIG. 2.
One embodiment of the present invention, as shown in FIG. 2, is shown in transition season when α is applied0When the angle is less than 27 degrees, the east side window shutter automatically enters an upper half part folding mode and a lower half part unfolding light blocking mode, referring to a shutter state shown in the right part of figure 2, and the shutter angle of the unfolding part is adjusted to be theta1TThat is, the shutter unfolding state is the early morning state;
when the angle is less than or equal to 27 degrees and less than or equal to α degrees0When the angle is less than 153 degrees, the louver is completely folded, and the louver state shown in the left side of the figure 2 is referred to, namely, the louver unfolding state is the noon state;
when the angle is 153- α ≦ 153 ≦0When the angle is less than 180 degrees, the west side window shutter automatically enters an upper half part folding mode and a lower half part unfolding light blocking mode, referring to a shutter state shown in the right part of fig. 2, and the shutter angle of the unfolding part is adjusted to theta3TThat is, the shutter-unfolded state is the afternoon state.
In summary, the invention discloses a photovoltaic sun-shading louver system, which comprises a movable louver, a photovoltaic solar panel assembly, a temperature monitor, a light intensity monitor and an automatic controller; the movable shutter is used for light blocking or indoor and outdoor ventilation through the unfolding state of the shutter and is divided into an upper half part and a lower half part; the photovoltaic solar panel assembly is used for collecting solar energy, converting the collected solar energy into electric energy for storage and providing driving power for the photovoltaic sun shading shutter system; the temperature monitor is used for monitoring a gradual time value of outdoor air temperature to obtain an average value of the daily air temperature, and comparing the average value with a preset temperature threshold value to determine the working condition of the movable shutter; the light intensity monitor is used for monitoring a local real-time solar altitude angle gradual time value and a solar radiation intensity real-time monitoring value; and the automatic controller is used for sending an instruction to automatically control the unfolding state of the shutter according to the working condition of the movable shutter and the real-time solar radiation intensity monitoring value, and automatically adjusting the shutter angle of the unfolding part according to the local real-time solar altitude angle time-by-time calculation value. The invention provides a reasonable and convenient modularized photovoltaic sun-shading shutter system aiming at the technical requirements of improving the heat preservation, the air tightness and the energy utilization of a glass external window, so that the modularized photovoltaic sun-shading shutter system has the combined functions of capacity and light modulation while preventing radiation from entering a room to achieve the purpose of reducing consumption, has the advantages of saving occupied area, reducing investment and loss of a power transmission line, replacing or partially replacing building materials and the like, and can be adopted in double-layer and single-layer glass external windows (push-pull windows, side-hung windows or top-hung windows) in houses in hot summer and cold winter based on the control method of the movable shutter provided by the system. Because the part needing sun shading on the building is usually a vertical surface or a lighting skylight, the part is the position most strongly irradiated by sunlight and is the best installation position of a photovoltaic system most needing solar radiation. Therefore, the solar technology is combined with the building sunshade, the photovoltaic element is added to the external sunshade device, the thermal performance of the external window of the house can be effectively improved, and the solar energy-saving building sunshade device has positive effects on improving the comfort level of an indoor thermal environment and reducing the energy consumption of heating and air conditioning of the house.
Those skilled in the art will appreciate that all or part of the processes for implementing the methods in the above embodiments may be implemented by a computer program, which is stored in a computer-readable storage medium, to instruct associated hardware. The computer readable storage medium is a magnetic disk, an optical disk, a read-only memory or a random access memory.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Claims (9)
1. A photovoltaic sun-shading shutter system is characterized by comprising a movable shutter, a photovoltaic solar panel assembly, a temperature monitor, a light intensity monitor and an automatic controller;
the movable shutter is used for blocking light or ventilating indoors and outdoors through the unfolding state of the shutter, is divided into an upper half part and a lower half part, and presents the same or different shutter states at the same time;
the temperature monitor is used for monitoring the gradual time value of the outdoor air temperature to obtain the average value of the daily air temperature;
the light intensity monitor is used for monitoring a local real-time solar altitude angle gradual time value and a solar radiation intensity real-time monitoring value;
the automatic controller is used for controlling the unfolding states of the shutters of the upper half part and the lower half part and the shutter angles of the unfolding parts according to the gradual time value of the monitored outdoor air temperature, the gradual time value of the local real-time solar altitude angle and the real-time solar radiation intensity monitoring value;
the automatic controller sends out the instruction according to portable shutter's operating mode and the real-time monitoring value of solar radiation intensity and automatic control tripe's the state of expanding, carries out automatic adjustment according to local real-time sun altitude angle chronogenesis calculated value to the tripe angle of expansion part simultaneously, specifically includes:
controlling the unfolding state of the louver according to the outdoor real-time solar radiation intensity monitoring value Qin and the action threshold value Qm, and calculating the value α one by one according to the local real-time solar altitude angle0Morning action threshold θ1Midday action threshold θ2And afternoon action threshold θ3To control the louver angle of the unfolded part;
the action threshold Qm comprises an action threshold Qm1 under a summer condition and an action threshold Qm2 under a winter condition;
the morning action threshold value theta1Including the early morning state louver angle value theta under the summer working condition1SMorning state shutter angle value theta under working condition in winter1WThe shutter angle value theta of the early morning state under the working condition of the transitional season1T；
The noon action threshold θ2Including the midday state and night state louver angle values theta under the summer working condition2SMidday state and night state shutter angle values theta under winter working condition2W；
The afternoon action threshold θ3Including the value theta of the louver angle in the afternoon state under the working condition of summer3SAnd the shutter angle value theta of the afternoon state under the working condition in winter3WAnd the shutter angle value theta of the afternoon state under the working condition of the transitional season3T。
2. The system of claim 1, further comprising a remote control, wherein the function options include sun shade, light adjustment, and energy utilization, and the sun shade is fully deployed when the sun shade is manually remotely controlled, the upper half of the sun shade is retracted and the lower half of the sun shade is deployed and blocks light or the upper half of the sun shade is deployed and blocks light and the lower half of the sun shade is retracted when the light adjustment is performed, and the sun shade is fully retracted when the energy utilization is performed.
3. The system of claim 1, wherein the automatic controller obtains an average value of the daily air temperature after monitoring the gradual value of the outdoor air temperature, and determines the working condition of the movable blind window after comparing the average value with a preset temperature threshold; the working conditions of the movable shutter comprise summer working conditions, winter working conditions and transitional season working conditions;
the summer working condition comprises that the louver enters a fully-unfolded mode, the louver enters an upper half unfolding light-blocking mode and a lower half folding mode, the louver enters an upper half folding light-blocking mode and a lower half unfolding light-blocking mode, and the louver completely folds to keep an indoor and outdoor ventilation mode;
the working conditions in winter comprise that the shutter enters an upper half unfolding and light blocking mode and a lower half folding mode, the shutter enters the upper half folding mode and the lower half unfolding and light blocking mode, and the shutter enters a complete unfolding mode;
the transitional season conditions include that the shutter enters an upper half part retracting mode and a lower half part unfolding light blocking mode and a fully retracted mode of the shutter.
4. The system according to claim 3, wherein the temperature threshold TS under summer conditions is set to 24-28 ℃ and the temperature threshold TW under winter conditions is set to 12-16 ℃;
when the outdoor average air temperature T01> TS for 3 consecutive days, the shutter automatically enters the summer working condition; when the outdoor average air temperature T02< TW for 3 consecutive days, the shutter automatically enters the winter working condition, and when the outdoor average air temperature T03 is between TS and TW, the shutter enters the transition season working condition.
5. A control method based on the system of claim 1, characterized in that, in summer conditions, when the real-time solar radiation intensity monitoring values Qin > Qm1, the shutter enters the fully deployed mode; when 0< Qin < Qm1, the blind enters a top half deployed light blocking and bottom half stowed mode; when Qin is 0, the louver is completely folded at night, and the indoor and outdoor ventilation mode is kept.
6. The control method of claim 5, wherein when α0When the angle is less than 27 degrees, the east side window shutter automatically enters an upper half part folding mode and a lower half part unfolding light blocking mode, and the shutter angle of the unfolding part is adjusted to be theta1S；
When the angle is less than or equal to 27 degrees and less than or equal to α degrees0When the angle is less than 153 degrees, the states of the upper half part and the lower half part of the shutter are determined by the intensity of solar radiation, and the shutter angle of the unfolding part is adjusted to theta2S；
When the angle is 153- α ≦ 153 ≦0When the angle is less than 180 degrees, the west side window shutter automatically enters an upper half part retracting mode and a lower half part unfolding light blocking mode, and the shutter angle of the unfolding part is theta3S；
The upper half part and the lower half part of the night shutter are determined by the intensity of solar radiation, and the shutter angle of the unfolding part is adjusted to theta2S。
7. The control method according to claim 5, wherein, in winter conditions, when the solar radiation monitoring value Qin > Qm2, the shutter enters an upper half deployed light blocking and lower half stowed mode; when Qin is more than or equal to 0 and less than Qm2, the shutter enters the fully-unfolded mode.
8. The control method of claim 7, wherein when α0When the angle is less than 27 degrees, the east side window shutter automatically enters an upper half part folding mode and a lower half part unfolding light blocking mode, and the shutter angle of the unfolding part is adjusted to be theta1W；
When the angle is less than or equal to 27 degrees and less than or equal to α degrees0When the angle is less than 153 degrees, the states of the upper half part and the lower half part of the shutter are determined by the intensity of solar radiation, and the shutter angle of the unfolding part is adjusted to theta2W；
When the angle is 153- α ≦ 153 ≦0When the angle is less than 180 degrees, the west side window shutter automatically enters an upper half part retracting mode and a lower half part unfolding light blocking mode, and the shutter angle of the unfolding part is adjusted to theta3W；
The upper half part and the lower half part of the night shutter are determined by the intensity of solar radiation, and the shutter angle of the unfolding part is adjusted to theta2W90 degrees, the heat preservation performance and the sealing performance of the external window are improved.
9. The control method of claim 5, wherein α is determined during the transition season when0When the angle is less than 27 degrees, the east side window shutter automatically enters an upper half part folding mode and a lower half part unfolding light blocking mode, and the shutter angle of the unfolding part is adjusted to be theta1T；
When the angle is less than or equal to 27 degrees and less than or equal to α degrees0When the angle is less than 153 degrees, the shutter is completely retracted;
when the angle is 153- α ≦ 153 ≦0When the angle is less than 180 degrees, the west side window shutter automatically enters an upper half part retracting mode and a lower half part unfolding light blocking mode, and the shutter angle of the unfolding part is adjusted to theta3T。
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| CN114645669B (en) * | 2022-03-17 | 2023-03-24 | 江苏倍斯特物联网技术有限公司 | Intelligent sun shading method for sunlight room based on intelligent Internet of things |
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| CN101787844B (en) * | 2010-01-19 | 2012-07-04 | 中国建筑设计研究院 | Mobile heat-insulating louver and automatic control method thereof |
| CN103809617B (en) * | 2014-03-11 | 2016-08-17 | 太原科技大学 | The control method of photovoltaic generation dual-axis tracking system |
| CN107288524B (en) * | 2017-08-04 | 2022-11-29 | 威海职业学院 | Intelligent louver outer sun-shading device convenient to disassemble |
| CN107795263B (en) * | 2017-09-11 | 2019-02-26 | 广东省建筑科学研究院集团股份有限公司 | A kind of Indoor Natural daylighting lifting system based on venetian blind |
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