CN110784011A - Solar energy and commercial power hybrid power supply control air conditioner control mode - Google Patents
Solar energy and commercial power hybrid power supply control air conditioner control mode Download PDFInfo
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- CN110784011A CN110784011A CN201911074031.0A CN201911074031A CN110784011A CN 110784011 A CN110784011 A CN 110784011A CN 201911074031 A CN201911074031 A CN 201911074031A CN 110784011 A CN110784011 A CN 110784011A
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- 238000000034 method Methods 0.000 claims abstract description 17
- 239000003990 capacitor Substances 0.000 claims description 18
- 230000005611 electricity Effects 0.000 claims description 10
- 238000005286 illumination Methods 0.000 claims description 9
- 238000005070 sampling Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 238000010248 power generation Methods 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
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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
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
-
- 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
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/30—Electrical components
-
- 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
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
-
- 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
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- 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
-
- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a control method of a solar energy and commercial power hybrid power supply control air conditioner, which comprises the following steps: the method comprises the following steps that a plurality of solar panels are directly connected to a solar energy connecting end of an air conditioner outdoor unit, generally 3 to 10 solar panels can be adjusted according to different machine types; when the air conditioner is started and operated, the solar panel is preferentially used when generating electric quantity; when the solar input electric quantity is not enough, enough commercial power is supplemented to meet the electric power consumed by the air conditioner; when the solar energy is enough, the air conditioner can operate under the power supply of full solar energy; the invention aims to track the solar power generation quantity in real time and adjust the power consumption of the compressor in real time, so that the consumption of a mains supply power grid is saved to the greatest extent, the optimal energy-saving effect is achieved, and the comfort of a user is guaranteed.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a solar energy and commercial power hybrid power supply control air conditioner control mode.
Background
The invention aims to create new energy consumption in the operation process of the air conditioner, introduce a solar panel to directly supply the air conditioner, directly apply clean energy in the process of greatly reducing the energy consumption of the air conditioner, reduce the multiple conversion loss in the energy use process, reduce more energy waste and is a new development direction for applying clean green energy.
Disclosure of Invention
The invention aims to solve the problem that the solar panel generates electricity and is repeatedly converted and inverted to be applied to the household appliance, thereby ensuring the using effect of the air conditioner, saving more energy, reducing energy consumption waste and achieving more energy-saving and comfortable air conditioning effect.
In order to achieve the purpose, the invention adopts the following technical scheme:
a control method for controlling an air conditioner by hybrid power supply of solar energy and commercial power specifically comprises the following steps:
s1, directly connecting a plurality of solar panels into a solar energy connecting end of an air conditioner outdoor unit, wherein 3 to 10 solar panels can be adjusted according to different models;
s2, when the air conditioner is started and operated, and the solar panel generates electricity, the electricity of the solar panel is preferentially used;
s3, when the solar energy input electric quantity is not enough, enough commercial power is supplemented to meet the electric power consumed by the air conditioner;
and S4, when the solar energy is enough, the air conditioner can be operated under the full solar power supply.
Preferably, the mains supply is Input from the AC Input end, and the Vdc1 voltage is Input to the electrolytic capacitor through the rectifier bridge and the PFC, and the compressor driving module takes electricity from the two ends of the electrolytic capacitor to control the rotating speed of the compressor.
Preferably, the solar energy electric quantity is transmitted to the controller from the DC Input, the voltage is neutralized to Vdc2 to two ends of the electrolytic capacitor through Boost, and the voltage at the two ends of the electrolytic capacitor fluctuates between Vdc 1-Vdc 2, so that the guarantee of electrolytic ripple and service life can be met.
Preferably, the maximum power of the solar panel is tracked in real time, the power is actually applied to the operation of the air conditioner compressor, the solar energy is characterized in that under illumination, the input voltage is basically consistent, but the output current is different along with the intensity of illumination, and the output voltage slightly fluctuates at different temperatures under the illumination condition.
Preferably, the power tracking of the series solar panels adopts a relatively simple fixed voltage method, and the control flow is as follows:
A. sampling the current solar panel input voltage before the compressor is started, wherein the current sampled voltage is marked as Uoc when the current compressor is not started and the load is very small;
B. when the compressor is started, the input power of the sun side is gradually increased, the input voltage is reduced along with the increase of the load, when the input voltage of the solar side is reduced to Uref which is 0.78Uoc, the current maximum solar power point is reached, the input current is adjusted near the voltage of the point, and the current input voltage of the solar panel is kept, namely the current input power of the solar panel is maintained;
C. when the solar input power is suddenly changed, the current solar input voltage is directly reduced to be not enough to maintain the current set voltage ratio due to the load, the Boost quits working, the calculation of the solar input voltage is carried out again, and after the Boost is put into use, the current is increased to maintain Uref again;
D. when the solar power rises from a small power to a large power, the maintained ratio changes along with the increase of the power, and then the Boost can increase the input voltage and maintain the Uref at 0.78Uoc so as to ensure the maximum input of the solar input power.
Preferably, when the solar input power is insufficient, the commercial power supplies real-time power to ensure the stable operation of the compressor, the voltage at two ends of the electrolytic capacitor is between Vdc1 and Vdc2, and the difference between Vdc1 and Vdc2 generally fluctuates at 5V, so that the stable operation of the compressor can be ensured, and the service life of the electrolytic capacitor is not influenced.
Compared with the prior art, the solar energy and commercial power hybrid power supply control air conditioner control method provided by the invention comprises the following steps:
according to the invention, the solar energy generating capacity is tracked in real time, the consumed power of the compressor is adjusted in real time, the consumption of a mains supply power grid is saved to the greatest extent, the optimal energy-saving effect is achieved, and the comfort of the user is ensured.
Drawings
FIG. 1 is a schematic diagram of a DC inverter air conditioner according to the present invention;
FIG. 2 is a schematic connection diagram of the principle of the present invention;
FIG. 3 is a flow chart of the present invention;
FIG. 4 is a graph of Vdc 1-Vdc 2 according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to specific embodiments and the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
A control method for controlling an air conditioner by hybrid power supply of solar energy and commercial power specifically comprises the following steps:
s1, directly connecting a plurality of solar panels into a solar energy connecting end of an air conditioner outdoor unit, wherein 3 to 10 solar panels can be adjusted according to different models;
s2, when the air conditioner is started and operated, and the solar panel generates electricity, the electricity of the solar panel is preferentially used;
s3, when the solar energy input electric quantity is not enough, enough commercial power is supplemented to meet the electric power consumed by the air conditioner;
and S4, when the solar energy is enough, the air conditioner can be operated under the full solar power supply.
The direct-current variable-frequency air conditioner controlled by the method and powered by mixing the solar panel power generation with the commercial power comprises a variable-frequency air conditioner and a solar panel, and is shown in figure 1;
the principle block is shown in fig. 2;
the commercial power is Input from the AC Input end, the Vdc1 voltage is Input to the electrolytic capacitor through the rectifier bridge and the PFC, and the compressor driving module is used for taking electricity from the two ends of the electrolytic capacitor to control the rotating speed of the compressor.
Preferably, the solar energy electric quantity is transmitted to the controller from the DC Input, the voltage is neutralized to Vdc2 to two ends of the electrolytic capacitor through Boost, and the voltage at the two ends of the electrolytic capacitor fluctuates between Vdc 1-Vdc 2, so that the guarantee of electrolytic ripple and service life can be met.
As shown in fig. 3, the maximum power of the solar panel is tracked in real time, and the power is actually applied to the operation of the air conditioner compressor, the characteristics of the solar energy are that under illumination, the input voltage is basically consistent, but the output current is different along with the intensity of illumination, and the output voltage slightly fluctuates at different temperatures and under illumination conditions.
The power tracking of the series solar panel adopts a relatively simple fixed voltage method, and the control flow is as follows:
A. sampling the current solar panel input voltage before the compressor is started, wherein the current sampled voltage is marked as Uoc when the current compressor is not started and the load is very small;
B. when the compressor is started, the input power of the sun side is gradually increased, the input voltage is reduced along with the increase of the load, when the input voltage of the solar side is reduced to Uref which is 0.78Uoc, the current maximum solar power point is reached, the input current is adjusted near the voltage of the point, and the current input voltage of the solar panel is kept, namely the current input power of the solar panel is maintained;
C. when the solar input power is suddenly changed, the current solar input voltage is directly reduced to be not enough to maintain the current set voltage ratio due to the load, the Boost quits working, the calculation of the solar input voltage is carried out again, and after the Boost is put into use, the current is increased to maintain Uref again;
D. when the solar power rises from a small power to a large power, the maintained ratio changes along with the increase of the power, and then the Boost can increase the input voltage and maintain the Uref at 0.78Uoc so as to ensure the maximum input of the solar input power.
As shown in fig. 4, when the compressor runs with insufficient solar input power, the commercial power supplies real-time power to ensure the stable running of the compressor, the voltage at two ends of the electrolytic capacitor is between Vdc1 and Vdc2, and the difference between Vdc1 and Vdc2 generally fluctuates at 5V, so that the stable running of the compressor can be ensured, and the service life of the electrolytic capacitor is not influenced.
According to the invention, the solar energy generating capacity is tracked in real time, the consumed power of the compressor is adjusted in real time, the consumption of a mains supply power grid is saved to the greatest extent, the optimal energy-saving effect is achieved, and the comfort of the user is ensured.
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 person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. A control mode of a solar energy and commercial power hybrid power supply control air conditioner is characterized by comprising the following steps:
s1, directly connecting a plurality of solar panels into a solar energy connecting end of an air conditioner outdoor unit, wherein 3 to 10 solar panels can be adjusted according to different models;
s2, when the air conditioner is started and operated, and the solar panel generates electricity, the electricity of the solar panel is preferentially used;
s3, when the solar energy input electric quantity is not enough, enough commercial power is supplemented to meet the electric power consumed by the air conditioner;
and S4, when the solar energy is enough, the air conditioner can be operated under the full solar power supply.
2. The control method of the air conditioner with the hybrid power supply of the solar energy and the commercial power as claimed in claim 1, is characterized in that: the commercial power is Input from the AC Input end, the Vdc1 voltage is Input to the electrolytic capacitor through the rectifier bridge and the PFC, and the compressor driving module is used for taking electricity from the two ends of the electrolytic capacitor to control the rotating speed of the compressor.
3. The control method of the air conditioner with the hybrid power supply of the solar energy and the commercial power as claimed in claim 2, characterized in that: the solar energy electric quantity is transmitted to the controller from the DC Input, the voltage is transmitted to the two ends of the electrolytic capacitor from the Vdc2 through the Boost, and the voltage at the two ends of the electrolytic capacitor fluctuates between Vdc 1-Vdc 2, so that the guarantee of electrolytic ripple and service life can be met.
4. The control method of the air conditioner with the hybrid power supply of the solar energy and the commercial power as claimed in claim 3, characterized in that: the maximum power of the solar panel is tracked in real time, the power is actually applied to the operation of the air conditioner compressor, the solar energy is characterized in that under illumination, the input voltage is basically consistent, but the output current is different along with the illumination intensity, and the output voltage slightly fluctuates in a tasting manner under different temperatures and illumination conditions.
5. The control method of the air conditioner with the hybrid power supply of the solar energy and the commercial power as claimed in claim 4, wherein: the power tracking of the series solar panel adopts a relatively simple fixed voltage method, and the control flow is as follows:
A. sampling the current solar panel input voltage before the compressor is started, wherein the current sampled voltage is marked as Uoc when the current compressor is not started and the load is very small;
B. when the compressor is started, the input power of the sun side is gradually increased, the input voltage is reduced along with the increase of the load, when the input voltage of the solar side is reduced to Uref which is 0.78Uoc, the current maximum solar power point is reached, the input current is adjusted near the voltage of the point, and the current input voltage of the solar panel is kept, namely the current input power of the solar panel is maintained;
C. when the solar input power is suddenly changed, the current solar input voltage is directly reduced to be not enough to maintain the current set voltage ratio due to the load, the Boost quits working, the calculation of the solar input voltage is carried out again, and after the Boost is put into use, the current is increased to maintain Uref again;
D. when the solar power rises from a small power to a large power, the maintained ratio changes along with the increase of the power, and then the Boost can increase the input voltage and maintain the Uref at 0.78Uoc so as to ensure the maximum input of the solar input power.
6. The control method of the air conditioner with the hybrid power supply of the solar energy and the commercial power as claimed in claim 5, is characterized in that: when the solar energy input power is insufficient, the compressor operates, the commercial power supplies real-time power, the stable operation of the compressor is guaranteed, the voltage at two ends of the electrolytic capacitor is between Vdc1 and Vdc2, and the difference between Vdc1 and Vdc2 generally fluctuates at 5V, so that the stable operation of the compressor can be guaranteed, and the service life of the electrolytic capacitor is not influenced.
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| CN201911074031.0A CN110784011A (en) | 2019-12-12 | 2019-12-12 | Solar energy and commercial power hybrid power supply control air conditioner control mode |
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| CN201911074031.0A CN110784011A (en) | 2019-12-12 | 2019-12-12 | Solar energy and commercial power hybrid power supply control air conditioner control mode |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113864219A (en) * | 2021-09-29 | 2021-12-31 | 刘敏 | Negative pressure fan linkage control system based on solar power supply |
| CN115764851A (en) * | 2022-11-23 | 2023-03-07 | 青岛海尔空调器有限总公司 | Energy-saving operation control method and device of air conditioner and air conditioner |
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2019
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Cited By (2)
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