WO2023142261A1 - Climatiseur photovoltaïque et son procédé de commande et système de climatiseur photovoltaïque - Google Patents

Climatiseur photovoltaïque et son procédé de commande et système de climatiseur photovoltaïque Download PDF

Info

Publication number
WO2023142261A1
WO2023142261A1 PCT/CN2022/084066 CN2022084066W WO2023142261A1 WO 2023142261 A1 WO2023142261 A1 WO 2023142261A1 CN 2022084066 W CN2022084066 W CN 2022084066W WO 2023142261 A1 WO2023142261 A1 WO 2023142261A1
Authority
WO
WIPO (PCT)
Prior art keywords
inverter device
compressor
photovoltaic
air conditioner
alternating current
Prior art date
Application number
PCT/CN2022/084066
Other languages
English (en)
Chinese (zh)
Inventor
刘洋
何成军
单烁
Original Assignee
青岛海信日立空调系统有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 青岛海信日立空调系统有限公司 filed Critical 青岛海信日立空调系统有限公司
Priority to CN202280063781.1A priority Critical patent/CN118044088A/zh
Publication of WO2023142261A1 publication Critical patent/WO2023142261A1/fr

Links

Images

Classifications

    • 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
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
    • F24F5/001—Compression cycle type
    • 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
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
    • H02J3/466—Scheduling the operation of the generators, e.g. connecting or disconnecting generators to meet a given demand
    • 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
    • H02S40/38—Energy storage means, e.g. batteries, structurally associated with PV modules
    • 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
    • H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/20—The dispersed energy generation being of renewable origin
    • H02J2300/22—The renewable source being solar energy
    • H02J2300/24—The renewable source being solar energy of photovoltaic origin
    • 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
    • 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
    • Y02E70/00—Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin

Definitions

  • the present disclosure relates to the technical field of air conditioning, and in particular to a photovoltaic air conditioner, a control method thereof, and a photovoltaic air conditioner system.
  • the air conditioner is a kind of heat exchange equipment, including the indoor unit of the air conditioner, which is installed indoors, and the heat or cold generated by the heating or cooling of the internal system of the air conditioner is sent to the room through the fan, so as to achieve the purpose of adjusting the indoor temperature.
  • the present disclosure provides a photovoltaic air conditioner, including a first compressor, a first inverter device, a first switch circuit and a main control board.
  • the first inverter device is configured to convert direct current from the photovoltaic module into alternating current.
  • the first switch circuit is coupled to the first inverter device and the first compressor; the first switch circuit is configured to conduct the first inverter device with the power grid or connect the first inverter device with the first compressor.
  • a compressor is turned on.
  • the main control board is coupled to the first switch circuit and the first inverter device.
  • the main control board is configured to control the first inverter device to convert the direct current from the photovoltaic module into alternating current when the photovoltaic power generation is satisfied and the photovoltaic air conditioner is in the air supply state or the standby state, And control the first switch circuit to conduct the first inverter device with the grid, so that the alternating current converted by the first inverter device is output to the grid; when photovoltaic power generation is satisfied, and the photovoltaic When the air conditioner is in cooling state or heating state, control the first inverter device to convert the direct current from the photovoltaic module into alternating current, and control the first switch circuit to connect the first inverter device with the The first compressor is turned on, so that the alternating current converted by the first inverter device is output to the first compressor.
  • the present disclosure also provides a method for controlling the photovoltaic air conditioner, which is used to control the above photovoltaic air conditioner, including: when the photovoltaic air conditioner satisfies photovoltaic power generation, according to the instruction information, determine the location where the photovoltaic air conditioner is located. working status.
  • the working states at least include a blowing state, a standby state, a cooling state and a heating state.
  • control the first inverter device When the photovoltaic air conditioner is in the air supply state or standby state, control the first inverter device to convert the direct current from the photovoltaic module into alternating current, and control the first switch circuit to convert the first inverter device Conducting with the grid, so that the alternating current converted by the first inverter device is output to the grid.
  • control the first inverter device When the photovoltaic air conditioner is in cooling state or heating state, control the first inverter device to convert the direct current from the photovoltaic module into alternating current, and control the first switch circuit to convert the first inverter device Conducting with the first compressor, so that the alternating current converted by the first inverter device is output to the first compressor.
  • the present disclosure also provides a photovoltaic air conditioner system, including the above photovoltaic air conditioner and a photovoltaic module.
  • the photovoltaic component is coupled to the photovoltaic air conditioner, and the photovoltaic component is used to convert solar energy into electrical energy and transmit the electrical energy to the photovoltaic air conditioner.
  • Fig. 1 is a structural block diagram of a photovoltaic air conditioning system according to some embodiments
  • Fig. 2 is the circuit diagram of the photovoltaic air conditioning system shown in Fig. 1;
  • Fig. 3 is a structural block diagram of another photovoltaic air conditioning system according to some embodiments.
  • Fig. 4 is the circuit diagram of the photovoltaic air conditioning system shown in Fig. 3;
  • Fig. 5 is a structural block diagram of another photovoltaic air conditioning system according to some embodiments.
  • Fig. 6 is a circuit diagram of the photovoltaic air conditioning system shown in Fig. 5;
  • Fig. 7 is a flowchart of a control method of a photovoltaic air conditioner according to some embodiments.
  • Fig. 8 is a flowchart of another control method of a photovoltaic air conditioner according to some embodiments.
  • first and second are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as “first” and “second” may explicitly or implicitly include one or more of these features. In the description of the present disclosure, unless otherwise specified, "plurality" means two or more.
  • Coupled may be used in describing some embodiments to indicate that two or more elements are in direct physical or electrical contact with each other.
  • the term “coupled” may be used when describing some embodiments to indicate that two or more elements are in direct physical or electrical contact.
  • the terms “coupled” or “communicatively coupled” may also mean that two or more elements are not in direct contact with each other, but yet still co-operate or interact with each other.
  • the embodiments disclosed herein are not necessarily limited by the context herein.
  • At least one of A, B and C has the same meaning as “at least one of A, B or C” and both include the following combinations of A, B and C: A only, B only, C only, A and B A combination of A and C, a combination of B and C, and a combination of A, B and C.
  • a and/or B includes the following three combinations: A only, B only, and a combination of A and B.
  • the term “if” is optionally interpreted to mean “when” or “at” or “in response to determining” or “in response to detecting,” depending on the context.
  • the phrases “if it is determined that " or “if [the stated condition or event] is detected” are optionally construed to mean “when determining ! or “in response to determining ! depending on the context Or “upon detection of [stated condition or event]” or “in response to detection of [stated condition or event]”.
  • the photovoltaic air conditioner 100 includes a first compressor 10 , a first inverter device 20 , a first switch circuit 30 and a main control board 40 .
  • the first inverter device 20 is configured to convert the DC power from the photovoltaic module 200 into AC power.
  • the first switch circuit 30 is coupled to the first inverter device 20 and the first compressor 10 , and the first switch circuit 30 is configured to connect the first inverter device 20 to the grid 300 or the first compressor 10 .
  • the main control board 40 is coupled to the first switch circuit 30 and the first inverter device 20 .
  • the main control board 40 is configured to control the first inverter device 20 to convert the direct current from the photovoltaic module 200 into alternating current and control the first
  • the switch circuit 30 connects the first inverter device 20 with the grid 300, so that the alternating current converted by the first inverter device 20 is output to the grid 300;
  • control the first inverter device 20 to convert the direct current from the photovoltaic module 200 into alternating current
  • control the first switch circuit 30 to conduct the first inverter device 20 with the first compressor 10, so that the first inverter device 20 the converted AC power is output to the first compressor 10 .
  • cooling state or heating state does not only represent the cooling or heating mode of the photovoltaic air conditioner 100 , but also includes other modes that require the compressor to work, such as defrosting mode or dehumidification mode.
  • the photovoltaic air conditioner 100 of some embodiments of the present disclosure can convert the direct current output by the photovoltaic module 200 into alternating current and input it into the power grid when photovoltaic power generation is satisfied and the photovoltaic air conditioner 100 is in the air supply state or the standby state. 300, in order to improve energy utilization and obtain income; in the case of satisfying photovoltaic power generation and the photovoltaic air conditioner 100 is in the cooling state or heating state, the direct current output by the photovoltaic module 200 can be converted into alternating current and input to the first compressor 10, to drive the first compressor 10, so as to realize cooling or heating, and reduce operating costs.
  • the photovoltaic module 200 when the photovoltaic module 200 converts solar energy into electrical energy and provides it to the photovoltaic air conditioner 100, it can also convert the solar energy converted by the photovoltaic module 200 when the photovoltaic air conditioner 100 is in standby or blowing air. Electric energy is input into the grid to improve energy utilization and obtain income.
  • the above-mentioned photovoltaic air conditioner 100 also includes a command input device 60 coupled to the main control board 40, and the command input device 60 is used to receive user operation commands and output command information.
  • the operation instruction includes at least one of the air supply state, the standby state, the cooling state, the heating state and the set temperature
  • the instruction information includes controlling the first compressor 10 and/or the second compressor 11 (see FIG. 3 ) command information of start, stop and running frequency. That is to say, the main control board 40 can judge the required running state of the photovoltaic air conditioner 100 and the running frequency of the compressor according to the command information output by the command input device 60 .
  • instruction input device 60 may be one or more of touch-sensing input, voice input, vibration input and text code graphic input.
  • the grid 300 may be any one of single-phase electricity, two-phase electricity or three-phase electricity.
  • the inverter device and the compressor can be adaptively adjusted according to the actual situation of the power grid 300 .
  • FIG. 2 is a circuit diagram of the photovoltaic air-conditioning system shown in FIG. 1 , and the command input device 60 is not shown in FIG. 2 .
  • the above-mentioned first compressor 10 may be a permanent magnet synchronous motor, and the three stators of the permanent magnet synchronous motor are respectively connected to the R phase, S phase and T phase of the three-phase electricity in one-to-one correspondence.
  • the first inverter device 20 includes a first drive board 22 and a three-phase bridge circuit 23 .
  • the first driving board 22 is configured to receive instruction information from the main control board 40 and control the three-phase bridge circuit 23 to be turned on or off according to the instruction information.
  • the three-phase bridge circuit 23 includes a first phase bridge arm, a second phase bridge arm and a third phase bridge arm connected in parallel.
  • the first phase bridge arm includes a first upper arm composed of a first power transistor Q1 and a first antiparallel diode D1, and a second upper arm composed of a second power transistor Q2 and an antiparallel first diode D2. upper arm.
  • the control terminal of the first power transistor Q1 and the control terminal of the second power transistor Q2 are coupled to the first driving board 22 .
  • the second phase bridge arm includes a second upper arm composed of a third power transistor Q3 and an antiparallel third diode D3, and a fourth power transistor Q4 and an antiparallel fourth diode D4. the second lower arm.
  • the control terminal of the third power transistor Q3 and the control terminal of the fourth power transistor Q4 are coupled to the first driving board 22 .
  • the third phase bridge arm includes a third upper arm composed of a fifth power transistor Q5 and an antiparallel fifth diode D5, and a sixth power transistor Q6 and an antiparallel sixth diode D6. the third lower arm.
  • the control terminal of the fifth power transistor Q5 and the control terminal of the sixth power transistor Q6 are coupled to the first driving board 22 .
  • the R phase of the three-phase power can be connected to the junction U of the first upper arm and the first lower arm
  • the S phase of the three-phase power supply can be connected to the junction V of the second upper arm and the second lower arm.
  • the T phase of the three-phase power supply can be connected to the junction W of the third upper arm and the third lower arm.
  • the above-mentioned first switch circuit 30 may be a relay.
  • the first switch circuit 30 is a switching relay, and the switching relay is coupled to the main control board 40 (not shown in FIG. 2 ).
  • the conversion relay includes a moving contact 1, a first static contact 2 and a second static contact 3, the moving contact 1 is coupled to the first inverter device 20, the first static contact 2 is coupled to the first compressor 10 connected, the second static contact 3 is coupled to the grid 300 .
  • the movable contact 1 When the coil is not energized, the movable contact 1 is disconnected from one of the static contacts and the other is closed, for example, the movable contact 1 is disconnected from the first static contact 2, and the second static contact 3 is closed; in the coil When energized, the movable contact, the movable contact 1 and the original static contact are disconnected, and the other static contact is closed, for example, the movable contact 1 and the second static contact 3 are disconnected, and the first static contact is disconnected 2 is closed, so as to achieve the purpose of line switching, that is, to conduct the first inverter device 20 with the power grid 300 or to conduct the first compressor 10 .
  • the first inverter device 20 is further configured to convert AC power from the grid 300 into DC power.
  • the photovoltaic air conditioner 100 also includes at least one second compressor 11 and at least one second inverter device 21, each second inverter device 21 is connected to a second compressor 11 and the main The control board 40 is coupled.
  • the photovoltaic air conditioner 100 includes a second compressor 11 as an example for illustration.
  • the second inverter device 21 is used to convert the DC power from the photovoltaic module 200 or the first inverter device 20 into AC power, and transmit the AC power to the second compressor 11 .
  • the second inverter device 21 includes a second driving board 24 and a three-phase bridge circuit 23 coupled to the second driving board 24, the structures of the second driving board 24 and the three-phase bridge circuit 23 can refer to the first
  • the inverter device 20 is not described in detail in this disclosure.
  • the main control board 40 is also used to control the first switch circuit 30 to connect the first inverter device 20 to the power grid 300 under the conditions that photovoltaic power generation is not satisfied and the photovoltaic air conditioner 100 is in a cooling state or a heating state, and controls the first
  • An inverter device 20 converts AC power from the grid 300 into DC power
  • controls the second inverter device 21 to convert the DC power converted from the first inverter device 20 into AC power
  • transmits the AC power to the second compressor 11 is also used to control the first switch circuit 30 to connect the first inverter device 20 to the power grid 300 under the conditions that photovoltaic power generation is not satisfied and the photovoltaic air conditioner 100 is in a cooling state or a heating state
  • the photovoltaic air conditioner 100 can also be connected to the grid 300, and the grid 300 provides electrical energy.
  • the second compressor 11 to realize cooling or heating, so as to ensure the normal use of the photovoltaic air conditioner 100 .
  • the main control board 40 can drive the first compressor 10 and/or the second compressor 11 according to requirements.
  • the main control board 40 is further configured to control the The first inverter device 20 converts the direct current from the photovoltaic module 200 into alternating current, and controls the first switch circuit 30 to conduct the first inverter device 20 with the grid 300, so that the alternating current converted by the first inverter device 20 is output to The grid 300 ; and, controlling the second inverter device 21 to convert the DC power from the photovoltaic module 200 into AC power, and transmit the AC power to the second compressor 11 .
  • the photovoltaic air conditioner 100 can drive a compressor to meet the demand, and the electric energy converted by the photovoltaic module 200 is greater than the electric energy required to drive a compressor, the photovoltaic air conditioner 100 uses the electric energy of the photovoltaic module 200 to realize cooling or heating. At the same time, the excess electric energy can be input into the grid 300 to obtain income.
  • the main control board 40 can also only drive the first compressor 10 .
  • the first inverter device 20 is controlled to convert the direct current from the photovoltaic module 200 into alternating current
  • the first switch circuit 30 is controlled to conduct the first inverter device 20 with the first compressor 10, so that the first inverter The alternating current converted by the inverter device 20 is output to the first compressor 10;
  • the main control board 40 is also used for when the first compressor 10 and the second compressor 11 When both need to work, control the first inverter device 20 to convert the DC power from the photovoltaic module 200 into AC power, and control the first switch circuit 30 to conduct the first inverter device 20 and the first compressor 10, so that the first The alternating current converted by the inverter device 20 is output to the first compressor 10 ;
  • the cooling efficiency of the photovoltaic air conditioner 100 is relatively high, and the power grid 300 is not required to provide electric energy, thereby saving costs.
  • the above-mentioned main control board 40 also controls the second inverter device 21 to be disconnected, that is, the second inverter device 21
  • the three-phase bridge circuit 23 is disconnected, so that the photovoltaic assembly 200 is disconnected from the second compressor 11, preventing the second compressor 11 from starting; through, so that the maximum amount of electric energy converted by the photovoltaic module 200 is input into the grid 300 to obtain income.
  • the photovoltaic air conditioner 100 further includes at least one rectifier 50 , and the rectifier 50 is coupled to the first inverter device 20 , the second inverter device 21 and the main control board 40 .
  • the photovoltaic air conditioner 100 includes a rectifier 50 as an example for illustration.
  • the first inverter device 20 is further configured to convert the DC power from the rectifier 50 into AC power, and transmit the AC power to the first compressor 10 .
  • the second inverter device 21 is also configured to convert the DC power from the rectifier 50 into AC power, and transmit the AC power to the second compressor 11 .
  • the rectifier 50 is configured to convert the AC power of the grid 300 into a DC power and transmit it to the first inverter device 20 and/or the second inverter device 21 .
  • the rectifier 50 includes three rectifying circuits connected in parallel, each rectifying circuit including two diodes connected in series.
  • the first phase, the second phase and the third phase of the three-phase electricity respectively correspond to a rectification circuit and are connected between two diodes of the rectification circuit.
  • the rectifier 50 may also include a capacitor to ensure that the output voltage is substantially constant.
  • the main control board 40 can drive the first compressor 10 and/or the second compressor 11 according to the requirement when photovoltaic power generation is not satisfied and the photovoltaic air conditioner 100 is in a cooling state or a heating state.
  • the main control board 40 is further configured to control the
  • the second inverter device 21 converts the DC power converted from the first inverter device 20 and/or the DC power from the rectifier 50 into AC power, and transmits the AC power to the second compressor 11 .
  • the main control board 40 is further configured to control the The first switch circuit 30 connects the first inverter device 20 to the first compressor 10, so that the alternating current converted by the first inverter device 20 is output to the first compressor 10; and controls the second inverter device 21 to be turned off. to disconnect the grid 300 from the second compressor 21.
  • the photovoltaic air conditioner 100 can also be connected to the grid 300, and the grid 300 provides electrical energy to drive the first compressor 10 or The second compressor 11 realizes cooling or heating to ensure the normal use of the photovoltaic air conditioner 100 .
  • the main control board 100 is also configured to operate when the first compressor 10 and the second compressor 11, when both need to work, control the first switch circuit 30 to conduct the first inverter device 20 and the first compressor 10, control the first inverter device 20 to convert the direct current from the rectifier 50 into alternating current, and transmit the alternating current to The first compressor 10 ; and, controlling the second inverter device 21 to convert the DC power from the rectifier 50 into AC power, and transmit the AC power to the second compressor 11 .
  • the photovoltaic air conditioner 100 can also be connected to the grid 300, and the grid 300 provides electrical energy to drive the first compressor 10 and the second compressor 11, so as to realize high-efficiency cooling or heating.
  • an embodiment of the present disclosure further provides a control method of the photovoltaic air conditioner 100 described above.
  • the control method includes S100-S400.
  • the photovoltaic air conditioner 100 meets photovoltaic power generation.
  • the actual power of the photovoltaic module 200 is greater than or equal to the maximum power of the photovoltaic air conditioner 100, it is determined that the photovoltaic air conditioner 100 meets photovoltaic power generation; Air conditioner 100 does not meet photovoltaic power generation.
  • the photovoltaic air conditioner 100 needs to perform a self-test, etc., which is not limited in this disclosure.
  • S200 Determine the working state of the photovoltaic air conditioner 100.
  • the working state of the photovoltaic air conditioner 100 can be determined according to the instruction information.
  • the instruction information is output by the instruction input device according to the user's operation instruction.
  • the operation instruction includes at least one of the air supply state, standby state, cooling state, heating state and set temperature, and the instruction information includes controlling the start, stop and operation of the first compressor 10 and/or the second compressor 11 Frequency command information.
  • the user inputs the air supply state or the standby state, and the main control board 40 receives the instruction information for controlling the stop of the first compressor 10, and executes S300;
  • the user inputs a cooling state or a heating state, and the main control board 40 receives instruction information for controlling the start of the first compressor 10, and executes S400.
  • S300 Control the first inverter device 20 to convert the DC power from the photovoltaic module 200 into AC power, and control the first switch circuit 30 to conduct the first inverter device 20 with the grid 300 .
  • the AC power converted by the first inverter device 20 can be output to the grid 300 , that is, the electric energy converted by the photovoltaic module 200 can be input into the grid 300 to improve energy utilization and obtain income.
  • S400 Control the first inverter device 20 to convert the DC power from the photovoltaic module 200 into AC power, and control the first switch circuit 30 to connect the first inverter device 20 to the first compressor 10 .
  • the AC power converted by the first inverter device 20 can be output to the first compressor 10, that is, the electric energy converted by the photovoltaic module 200 can drive the first compressor 10, thereby realizing refrigeration or refrigeration. heat, reducing operating costs.
  • the above control method further includes S500.
  • S500 When the photovoltaic air conditioner 100 does not satisfy photovoltaic power generation, and the user inputs a cooling state or a heating state, S500 may be executed.
  • S500 Control the first switch circuit 30 to connect the first inverter device 20 to the power grid 300, control the first inverter device 20 to convert the alternating current from the power grid 300 into direct current, and control the second inverter device 21 to convert the The DC power converted by the transformer 20 is converted into AC power, and the AC power is transmitted to the second compressor 11 .
  • the photovoltaic air conditioner 100 when the solar energy cannot be converted into electrical energy through the photovoltaic module 200 and provided to the photovoltaic air conditioner 100, for example, at night or on cloudy days, the photovoltaic air conditioner 100 can also be connected to the grid 300, Electric energy is provided by the grid 300 to drive the second compressor 11 to realize cooling or heating and ensure the normal use of the photovoltaic air conditioner 100 .
  • the above control method may further include S600-S800.
  • S600 may be executed before S400 is executed.
  • S700 Control the first inverter device 20 to convert the direct current from the photovoltaic module 200 into alternating current, and control the first switch circuit 30 to conduct the first inverter device 20 with the grid 300;
  • the DC power of the assembly 200 is converted into AC power, and the AC power is transmitted to the second compressor 11 .
  • the photovoltaic air conditioner 100 utilizes the electric energy of the photovoltaic module 200 to realize cooling or heating functions, it can also input excess electric energy into the grid 300 to obtain income.
  • S800 Control the first inverter device 20 to convert the direct current from the photovoltaic module 200 into alternating current, and control the first switch circuit 30 to conduct the first inverter device 20 with the first compressor 10; control the second inverter device 21
  • the DC power from the photovoltaic module 200 is converted into AC power, and the AC power is transmitted to the second compressor 11 .
  • the cooling efficiency of the photovoltaic air conditioner 100 is relatively high, and the power grid 300 is not required to provide electric energy, thereby saving costs.
  • the above control method may further include S900.
  • S600 may be executed before S500 is executed.
  • S900 when both the first compressor 10 and the second compressor 11 need to work, execute S900; when only one compressor needs to be started, the second compressor 11 can be selected to be started, that is, execute S500.
  • the second inverter device 21 may convert and transmit the DC power converted by the first inverter device 20 to the second compressor 11, or convert and transmit the DC power from the rectifier 50 to the second compressor 11.
  • S900 Control the first switch circuit 30 to connect the first inverter device 20 to the first compressor 10, control the first inverter device 20 to convert the DC power from the rectifier 50 into AC power, and transmit the AC power to the first compressor 10; and, control the second inverter device 21 to convert the DC power from the rectifier 50 into AC power, and transmit the AC power to the second compressor 11 .
  • the photovoltaic air conditioner 100 can also be connected to the grid 300, and the grid 300 provides electrical energy to drive the first compressor 10 and The second compressor 11, so as to realize high-efficiency cooling or heating.
  • an embodiment of the present disclosure further provides a photovoltaic air conditioner system 1000.
  • the photovoltaic air conditioner system 1000 includes the photovoltaic air conditioner 100 and the photovoltaic module 200 described in any of the above embodiments.
  • the photovoltaic assembly 200 is coupled with the photovoltaic air conditioner 100 , and the photovoltaic assembly 200 is used to convert solar energy into electrical energy and transmit the electrical energy to the photovoltaic air conditioner 100 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Inverter Devices (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

La présente invention concerne un climatiseur photovoltaïque et son procédé de commande et un système de climatiseur photovoltaïque. Le climatiseur photovoltaïque comprend un premier compresseur, un premier dispositif onduleur, un premier circuit de commutation et une carte de commande principale. La carte de commande principale est configurée pour, lorsque la génération d'énergie photovoltaïque est satisfaite et que le climatiseur photovoltaïque est dans un état d'alimentation en air ou un état de veille, commander le premier dispositif onduleur pour convertir un courant continu d'un ensemble photovoltaïque en courant alternatif, et commander le premier circuit de commutation pour connecter le premier dispositif onduleur à un réseau électrique, de telle sorte que le courant alternatif obtenu par conversion est délivré au réseau électrique ; et lorsque la génération d'énergie photovoltaïque est satisfaite et que le climatiseur photovoltaïque est dans un état de refroidissement ou de chauffage, commander le premier dispositif onduleur pour convertir un courant continu de l'ensemble photovoltaïque en courant alternatif, et commander le premier circuit de commutation pour connecter le premier dispositif onduleur au premier compresseur, de telle sorte que le courant alternatif obtenu par conversion est délivré au premier compresseur.
PCT/CN2022/084066 2022-01-27 2022-03-30 Climatiseur photovoltaïque et son procédé de commande et système de climatiseur photovoltaïque WO2023142261A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202280063781.1A CN118044088A (zh) 2022-01-27 2022-03-30 光伏空调及其控制方法、光伏空调系统

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202210103307.9 2022-01-27
CN202210103307.9A CN114256879A (zh) 2022-01-27 2022-01-27 一种光伏空调及其控制方法、光伏空调系统

Publications (1)

Publication Number Publication Date
WO2023142261A1 true WO2023142261A1 (fr) 2023-08-03

Family

ID=80796875

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/084066 WO2023142261A1 (fr) 2022-01-27 2022-03-30 Climatiseur photovoltaïque et son procédé de commande et système de climatiseur photovoltaïque

Country Status (2)

Country Link
CN (2) CN114256879A (fr)
WO (1) WO2023142261A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114256879A (zh) * 2022-01-27 2022-03-29 青岛海信日立空调系统有限公司 一种光伏空调及其控制方法、光伏空调系统

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH085124A (ja) * 1994-06-16 1996-01-12 Hitachi Ltd 太陽電池を備えたルームエアコンシステム
CN102705944A (zh) * 2012-06-28 2012-10-03 南车株洲电力机车研究所有限公司 一种太阳能变频空调系统
CN104142008A (zh) * 2014-08-18 2014-11-12 珠海格力电器股份有限公司 光伏空调器和光伏空调系统
CN204141794U (zh) * 2014-08-18 2015-02-04 珠海格力电器股份有限公司 光伏空调器和光伏空调系统
US20150229268A1 (en) * 2012-08-06 2015-08-13 Kyocera Corporation Management system, management method, control apparatus, and photovoltaic cell apparatus
CN104949246A (zh) * 2015-06-29 2015-09-30 南车株洲电力机车研究所有限公司 一种太阳能变频空调系统
CN114256879A (zh) * 2022-01-27 2022-03-29 青岛海信日立空调系统有限公司 一种光伏空调及其控制方法、光伏空调系统

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104135027B (zh) * 2014-07-11 2016-09-14 珠海格力电器股份有限公司 光伏变频空调器及其供电控制方法
CN116557990A (zh) * 2022-01-27 2023-08-08 青岛海信日立空调系统有限公司 一种光伏空调及其控制方法、光伏空调系统
CN116557991A (zh) * 2022-01-27 2023-08-08 青岛海信日立空调系统有限公司 一种光伏空调及其控制方法、光伏空调系统

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH085124A (ja) * 1994-06-16 1996-01-12 Hitachi Ltd 太陽電池を備えたルームエアコンシステム
CN102705944A (zh) * 2012-06-28 2012-10-03 南车株洲电力机车研究所有限公司 一种太阳能变频空调系统
US20150229268A1 (en) * 2012-08-06 2015-08-13 Kyocera Corporation Management system, management method, control apparatus, and photovoltaic cell apparatus
CN104142008A (zh) * 2014-08-18 2014-11-12 珠海格力电器股份有限公司 光伏空调器和光伏空调系统
CN204141794U (zh) * 2014-08-18 2015-02-04 珠海格力电器股份有限公司 光伏空调器和光伏空调系统
CN104949246A (zh) * 2015-06-29 2015-09-30 南车株洲电力机车研究所有限公司 一种太阳能变频空调系统
CN114256879A (zh) * 2022-01-27 2022-03-29 青岛海信日立空调系统有限公司 一种光伏空调及其控制方法、光伏空调系统

Also Published As

Publication number Publication date
CN114256879A (zh) 2022-03-29
CN118044088A (zh) 2024-05-14

Similar Documents

Publication Publication Date Title
AU2012359824B2 (en) Air conditioner
CN1455193A (zh) 数字直流变频空调控制器
WO2023142261A1 (fr) Climatiseur photovoltaïque et son procédé de commande et système de climatiseur photovoltaïque
CN104566730A (zh) 一种太阳能光伏空调系统及其供电方法
CN103836766A (zh) 空调器室内机及其自动调节静压方法和装置
US20230332799A1 (en) Control circuit for air conditioner outdoor unit, electric control component and air conditioner
CN116557991A (zh) 一种光伏空调及其控制方法、光伏空调系统
CN202024430U (zh) 太阳能空气调节器
CN116557990A (zh) 一种光伏空调及其控制方法、光伏空调系统
WO2012114702A1 (fr) Appareil de conditionnement d'air
CN101237215B (zh) 车辆空调变频控制系统及其方法
JP5478959B2 (ja) ガスヒートポンプ式空気調和機を用いた系統連系システム
US20210372652A1 (en) Air-Conditioning Device, and Electric Energy Processing Method for Air-Conditioning Device
US11936327B2 (en) Hybrid power system with electric generator and auxiliary power source
JPH08228487A (ja) 空調機のインバータ装置
JP3504843B2 (ja) 電源装置及びこれを用いた空気調和装置
CN201032709Y (zh) 车辆空调变频控制装置
CN219414969U (zh) 一种空调器及光伏空调
CN112310966A (zh) 光伏储能空调供电系统及其控制方法
JP2011012848A (ja) ガスヒートポンプ式空気調和機を用いた系統連系システム
CN111174389A (zh) 分布式供电的空调功率控制方法及空调系统
JP2012083063A (ja) 直流駆動エアコン
WO2022218266A1 (fr) Dispositif de commande, climatiseur et circuit de protection haute tension
CN214380118U (zh) 光伏空调供电电路、供电控制系统及光伏空调
CN213542795U (zh) 一种室内机待机功耗控制电路和空调器

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22923079

Country of ref document: EP

Kind code of ref document: A1