CN114552752A - Intelligent hybrid power supply air conditioning device with solar priority power supply and power supply method thereof - Google Patents
Intelligent hybrid power supply air conditioning device with solar priority power supply and power supply method thereof Download PDFInfo
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- CN114552752A CN114552752A CN202210186183.5A CN202210186183A CN114552752A CN 114552752 A CN114552752 A CN 114552752A CN 202210186183 A CN202210186183 A CN 202210186183A CN 114552752 A CN114552752 A CN 114552752A
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- photovoltaic
- power supply
- air conditioner
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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
- 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
- H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
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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
- H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
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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
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/20—Charging or discharging characterised by the power electronics converter
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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
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/50—Charging of capacitors, supercapacitors, ultra-capacitors or double layer capacitors
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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
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides an intelligent hybrid power supply air conditioning device with preferential solar power supply, which comprises: the system comprises a photovoltaic assembly, a photovoltaic air conditioner controller and an air conditioner assembly; the photovoltaic module is connected with the photovoltaic air conditioner controller and is used for providing photovoltaic input voltage for the photovoltaic air conditioner controller; the photovoltaic air conditioner controller is connected with the air conditioner assembly and used for converting photovoltaic input voltage and commercial power into working voltage required by operation of the air conditioner assembly. The intelligent hybrid power supply air-conditioning device with the solar priority power supply directly guides the photovoltaic electric energy into the air conditioner for direct use through the photovoltaic air-conditioning controller, and the switching of an intermediate link for converting the external electric energy is not needed, so that the energy loss is reduced; when the photovoltaic electric energy is insufficient, the photovoltaic air conditioner controller can also access the commercial power to supply power to the air conditioner component, so that the stable use of the air conditioner component is ensured, and the use of the commercial power is reduced to the maximum extent.
Description
Technical Field
The invention relates to the technical field of air conditioner power supply, in particular to an intelligent hybrid power supply air conditioner device with solar priority power supply and a power supply method thereof.
Background
Under the large environment that global climate conditions are continuously worsened, people begin to review the energy industry again, and the introduction of clean energy releases positive signals, wherein photovoltaic power generation belongs to a mature industry, and with the development of material technology, the photoelectric conversion efficiency is higher and higher, and the application range is wider and wider. Meanwhile, with the development of global economy, the air conditioner becomes an indispensable important device in the household, market, industry and communication industry. In the prior art, photovoltaic power generation can be applied to electrical appliances such as air conditioners after multiple conversions and multi-link switching, and the energy loss is easily caused in the middle process, so that the low utilization rate of the photovoltaic power generation is caused. Therefore, it is very necessary to invent an intelligent hybrid power supply air conditioner with solar energy priority power supply and a power supply method thereof.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in order to solve the problem of low photovoltaic power generation utilization rate in the prior art, the invention provides an intelligent hybrid power supply air conditioning device with solar priority power supply to solve the problem.
The technical scheme adopted by the invention for solving the technical problems is as follows: an intelligent hybrid power supply air conditioning device with preferential solar power supply comprises: the system comprises a photovoltaic assembly, a photovoltaic air conditioner controller and an air conditioner assembly;
the photovoltaic module is connected with the photovoltaic air conditioner controller and is used for providing photovoltaic input voltage for the photovoltaic air conditioner controller; the photovoltaic air conditioner controller is connected with the air conditioner assembly and used for converting photovoltaic input voltage and commercial power into working voltage required by operation of the air conditioner assembly.
Preferably, the photovoltaic module comprises a photovoltaic power generation panel.
Preferably, the air conditioning assembly is an air conditioning assembly which can only work on direct current, and the working voltage is direct current.
In addition, the invention also discloses a power supply method of the intelligent hybrid power supply air conditioning device based on the solar priority power supply, which comprises the following steps:
s1, collecting a photovoltaic voltage Vpmax when the photovoltaic input voltage is detected, taking the photovoltaic voltage Vpmax as a reference voltage, and continuously tracking the power of the reference voltage Vpmax;
s2, boosting the photovoltaic input voltage to be working voltage, and storing the working voltage into an energy storage electrolytic capacitor for supplying power to the air conditioning assembly;
s3, judging whether the air conditioner is started or not, and if the air conditioner is not started, re-entering the step S2;
s4, judging whether the photovoltaic input power can meet the full-power operation of the air conditioning assembly, and if so, continuing to operate the air conditioning assembly; if the photovoltaic input voltage can not be met, the photovoltaic input voltage is firstly processed into working voltage to supply power to the air conditioning assembly, and when the photovoltaic input voltage is insufficient, the commercial power is rectified and boosted to be processed into the working voltage to supply power to the air conditioning assembly.
Preferably, the following steps are further included between step S3 and step S4:
s31, judging whether commercial power exists or not, if so, entering the step S4, and if not, operating the air conditioning assembly under the condition that the operating frequency is the basic frequency;
s32, judging whether the current photovoltaic input power can meet the requirement that the current air conditioner component operates at the current operating frequency, if so, entering a step S33, and if not, entering a step S34;
s33, the operation frequency of the air conditioning assembly is increased according to the first speed, and the process goes to step S32;
s34, judging whether the operating frequency of the air-conditioning assembly is greater than the basic frequency, if so, stopping the operation of the air-conditioning assembly until the photovoltaic input voltage is sufficient again; otherwise, the operation frequency of the air conditioning assembly is decreased according to the second speed, and the process goes to step S32.
Preferably, the first rate is less than the second rate.
The intelligent hybrid power supply air conditioning device with the solar priority power supply has the advantages that the photovoltaic electric energy is directly led into the air conditioner for direct use through the photovoltaic air conditioning controller, the switching of an intermediate link for converting the external electric energy is not needed, and the energy loss is reduced; when the photovoltaic electric energy is insufficient, the photovoltaic air conditioner controller can also connect the commercial power into the power supply of the air conditioner, so that the stable use of the air conditioner is ensured, and the use of the commercial power is reduced to the maximum extent.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a flow chart of the operation of the preferred embodiment of the intelligent hybrid power supply air conditioning device with solar priority power supply.
Fig. 2 is a flowchart of a first embodiment of a power supply method of an intelligent hybrid power supply air conditioning device with solar priority power supply according to the present invention.
Fig. 3 is a flowchart of a second embodiment of a power supply method of an intelligent hybrid power supply air conditioning device with solar priority power supply according to the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the present invention.
Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
As shown in fig. 1, the present invention provides an intelligent hybrid power supply air conditioning device with solar priority power supply, comprising: the system comprises a photovoltaic assembly, a photovoltaic air conditioner controller and an air conditioner assembly;
the photovoltaic assembly comprises a plurality of photovoltaic power generation plates, and the number of the photovoltaic power generation plates is determined by the power of the air conditioner assembly. In this embodiment, air conditioner component is domestic air conditioner, and the quantity of preferred photovoltaic module is 3~10, photovoltaic power generation board with photovoltaic air conditioner controller connects, can provide photovoltaic input voltage for photovoltaic air conditioner controller.
The photovoltaic air conditioner controller is connected with the air conditioner assembly and can convert photovoltaic input voltage and commercial power into working voltage required by operation of the air conditioner assembly. In this embodiment, the air conditioning assembly is an air conditioning assembly capable of only working on direct current, and includes a compressor, and the working voltage is direct current voltage. The photovoltaic air conditioner controller is a controller component which is suitable for operation of a full-direct-current air conditioner component and has photovoltaic voltage input, and comprises an MCU (microprogrammed control unit) for control and sampling, an IPM (intelligent power module) for driving a compressor, an MPPT (maximum power point tracking) module for photovoltaic power tracking, an electrolytic capacitor for mains supply input control and rectification, a voltage and power factor adjusting module and confluence energy storage.
The working flow of the intelligent hybrid power supply air conditioning device with solar priority power supply is as follows: the photovoltaic power generation panel converts solar energy into 70-360V direct current and outputs the direct current to the MPPT power following module, the MPPT power following module boosts the 70-360V direct current to 360-372V direct current, and then inputs the 360-372V direct current to the filtering energy storage convergence module; when the photovoltaic input voltage is insufficient and the mains supply voltage is needed to be supplemented, the rectifying module rectifies, corrects and stabilizes 220V alternating current output by the mains supply into 310-360V direct current, and then outputs the 310-360V direct current to the filtering energy storage convergence module.
The filtering energy storage convergence module filters, stores and converges input 360-372V direct current or 310-360V direct current into working voltage and stores the working voltage into an energy storage electrolytic capacitor, and the electrolytic capacitor can release the working voltage of the IPM module driving compressor to provide electric energy, and in the embodiment, the working voltage is 365-372V direct current.
The intelligent hybrid power supply air conditioning device with the solar priority power supply can directly connect the photovoltaic module with the photovoltaic air conditioning controller, so that the loss of photovoltaic output voltage can be reduced, and the utilization rate of photovoltaic power generation is improved. Meanwhile, the photovoltaic air conditioner controller can be connected with a mains supply, and the alternative mains supply can ensure the normal operation of the air conditioner component when the photovoltaic power generation is insufficient or the air conditioner component cannot be used.
Based on the above intelligent hybrid power supply air conditioning device with preferential solar power supply, as shown in fig. 2, the first embodiment of the power supply method for the intelligent hybrid power supply air conditioning device with preferential solar power supply provided by the present invention further includes the following steps:
s1, collecting a photovoltaic voltage Vpmax when the photovoltaic input voltage is detected, taking the photovoltaic voltage Vpmax as a reference voltage, and continuously tracking the power of the reference voltage Vpmax;
s2, boosting the photovoltaic input voltage to be working voltage, and storing the working voltage into an energy storage electrolytic capacitor for supplying power to the air conditioning assembly;
s3, judging whether the air conditioner is started or not, and if the air conditioner is not started, re-entering the step S2;
s4, judging whether the photovoltaic input power can meet the full-power operation of the air conditioning assembly, wherein the photovoltaic input power is determined by the photovoltaic input voltage, and if the photovoltaic input power can meet the full-power operation of the air conditioning assembly, the air conditioning assembly continues to operate; if the photovoltaic input voltage can not be met, the photovoltaic input voltage is firstly processed into working voltage to supply power to the air conditioning assembly, and when the photovoltaic input voltage is insufficient, the commercial power is rectified and boosted to be processed into the working voltage to supply power to the air conditioning assembly.
According to the power supply method of the intelligent hybrid power supply air conditioning device with the solar priority power supply, when the commercial power and the photovoltaic input voltage exist at the same time, the photovoltaic output voltage output by the photovoltaic module is preferentially adopted to supply power to the air conditioning module, and when the photovoltaic output voltage is insufficient, the commercial power is adopted to supplement, so that the use of the commercial power is reduced to the maximum extent.
In consideration of the situation that the commercial power cannot be used due to a failure such as power failure or power maintenance, the first embodiment of the power supply method for the intelligent hybrid power supply air conditioning device with the solar priority power supply is based on, as shown in fig. 3, the invention further discloses a second embodiment of the power supply method for the intelligent hybrid power supply air conditioning device with the solar priority power supply, which comprises the following steps:
s1, collecting a photovoltaic voltage Vpmax when the photovoltaic input voltage is detected, taking the photovoltaic voltage Vpmax as a reference voltage, and continuously tracking the power of the reference voltage Vpmax;
s2, boosting the photovoltaic input voltage to be working voltage, and storing the working voltage into an energy storage electrolytic capacitor for supplying power to the air conditioning assembly;
s3, judging whether the air conditioner is started or not, and if the air conditioner is not started, re-entering the step S2;
s31, judging whether commercial power exists or not, if so, entering the step S4, and if not, operating the air conditioning assembly under the condition that the operating frequency is the basic frequency;
s32, judging whether the current photovoltaic input power can meet the requirement that the current air conditioner component operates at the current operating frequency, if so, entering a step S33, and if not, entering a step S34;
s33, the operation frequency of the air conditioning assembly is increased according to the first rate, in the step, the maximum voltage of the photovoltaic input is increased to a value Fobj which can meet the requirement of the compressor for cooling or heating the current environment, namely, the operation is stopped and is not increased, and the step is S32;
s34, judging whether the operating frequency of the air-conditioning assembly is greater than the basic frequency, if so, stopping the operation of the air-conditioning assembly until the photovoltaic input voltage is sufficient again; otherwise, the air conditioning module performs the operation frequency reduction according to the second rate, where the first rate is lower than the second rate in this embodiment, and the process goes to step S32.
S4, judging whether the photovoltaic input power can meet the full-power operation of the air conditioning assembly, and if so, continuing to operate the air conditioning assembly; if the photovoltaic input voltage can not be met, the photovoltaic input voltage is firstly processed into working voltage to supply power to the air conditioning assembly, and when the photovoltaic input voltage is insufficient, the commercial power is rectified and boosted to be processed into the working voltage to supply power to the air conditioning assembly.
In the embodiment in the market, after the air conditioning assembly operates, the judgment on whether the commercial power exists is added, when the commercial power does not exist, the air conditioning assembly operates at the basic frequency of 20Hz (1200 RPM) in the beginning, and meanwhile, the real-time judgment on whether the photovoltaic input power can meet the current operating frequency of the compressor is carried out;
after the photovoltaic input power is determined to meet the current operating frequency of the compressor, the operating frequency of the compressor is increased, and whether the photovoltaic input power meets the current operating frequency of the compressor or not is judged next time;
if the photovoltaic input power cannot meet the current operating frequency of the compressor, continuing to compare the current operating frequency of the compressor with the basic frequency, and if the current operating frequency of the compressor is higher than the basic frequency, stopping the compressor to wait for the photovoltaic input power to be sufficient; and if the current operating frequency of the compressor is not higher than the basic frequency, reducing the operating frequency of the compressor, and judging whether the photovoltaic input power meets the current operating frequency of the compressor next time.
According to the power supply method provided by the embodiment, under the condition that the commercial power cannot be supplied, the operation frequency of the compressor is adjusted by judging the photovoltaic input power, and the normal operation of the air conditioning component can be ensured to the greatest extent.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, a schematic representation of the term does not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (6)
1. The utility model provides an intelligent hybrid power supply air conditioning equipment of preferential power supply of solar energy which characterized in that includes: the system comprises a photovoltaic module, a photovoltaic air conditioner controller and an air conditioner module;
the photovoltaic module is connected with the photovoltaic air conditioner controller and is used for providing photovoltaic input voltage for the photovoltaic air conditioner controller; the photovoltaic air conditioner controller is connected with the air conditioner assembly and used for converting photovoltaic input voltage and commercial power into working voltage required by operation of the air conditioner assembly.
2. The intelligent hybrid power supply air conditioning device with preferential solar power supply of claim 1, wherein:
the photovoltaic module comprises a photovoltaic power generation panel.
3. The intelligent hybrid power supply air conditioning device with preferential solar power supply of claim 1, wherein:
the air conditioning component is an air conditioning component which can only work on direct current, and the working voltage is direct current.
4. A power supply method of an intelligent hybrid power supply air conditioning device with solar energy priority power supply according to any one of claims 1-3, characterized by comprising the following steps:
s1, acquiring a photovoltaic voltage Vpmax when a photovoltaic input voltage is detected, taking the photovoltaic voltage Vpmax as a reference voltage, and continuously tracking the power of the reference voltage Vpmax;
s2, boosting the photovoltaic input voltage to be working voltage, and storing the working voltage into an energy storage electrolytic capacitor for supplying power to the air conditioning assembly;
s3, judging whether the air conditioner is started or not, and if the air conditioner is not started, re-entering the step S2;
s4, judging whether the photovoltaic input power can meet the full-power operation of the air conditioning assembly, and if so, continuing to operate the air conditioning assembly; if the photovoltaic input voltage can not be met, the photovoltaic input voltage is firstly processed into working voltage to supply power to the air conditioning assembly, and when the photovoltaic input voltage is insufficient, the commercial power is rectified and boosted to be processed into the working voltage to supply power to the air conditioning assembly.
5. The intelligent hybrid power supply air conditioning device with preferential solar power supply of claim 4, wherein:
the following steps are also included between step S3 and step S4:
s31, judging whether commercial power exists or not, if so, entering the step S4, and if not, operating the air conditioning assembly under the condition that the operating frequency is the basic frequency;
s32, judging whether the current photovoltaic input power can meet the requirement that the current air conditioner component operates at the current operating frequency, if so, entering a step S33, and if not, entering a step S34;
s33, the operation frequency of the air conditioning module is increased according to the first speed, and the process goes to step S32;
s34, judging whether the operating frequency of the air-conditioning assembly is greater than the basic frequency, if so, stopping the operation of the air-conditioning assembly until the photovoltaic input voltage is sufficient again; otherwise, the operation frequency of the air conditioning assembly is decreased according to the second speed, and the process goes to step S32.
6. The intelligent hybrid power supply air conditioning device with preferential solar power supply of claim 5, wherein:
the first rate is less than the second rate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210186183.5A CN114552752A (en) | 2022-02-28 | 2022-02-28 | Intelligent hybrid power supply air conditioning device with solar priority power supply and power supply method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210186183.5A CN114552752A (en) | 2022-02-28 | 2022-02-28 | Intelligent hybrid power supply air conditioning device with solar priority power supply and power supply method thereof |
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| CN114552752A true CN114552752A (en) | 2022-05-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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2022
- 2022-02-28 CN CN202210186183.5A patent/CN114552752A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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