CN111854096A - Control method and device of variable frequency air conditioner and variable frequency air conditioner - Google Patents
Control method and device of variable frequency air conditioner and variable frequency air conditioner Download PDFInfo
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- CN111854096A CN111854096A CN201910345422.5A CN201910345422A CN111854096A CN 111854096 A CN111854096 A CN 111854096A CN 201910345422 A CN201910345422 A CN 201910345422A CN 111854096 A CN111854096 A CN 111854096A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
- F24F2013/247—Active noise-suppression
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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- Air Conditioning Control Device (AREA)
Abstract
The application discloses a control method and a control device of a variable frequency air conditioner and the variable frequency air conditioner, which belong to the field of compressors, wherein in the method, a target frequency f is calculated according to the temperature Tp of an inner coil; and judging whether the target frequency f is greater than the winding boundary frequency f4, if f is greater than or equal to f4, selecting a first winding mode of the motor, enabling the air-conditioning compressor to sequentially operate to the frequencies of two pause platforms for respectively lasting preset time, enabling the air-conditioning compressor to operate to the winding boundary frequency f4, switching to a second winding mode of the motor for wiring, enabling the air-conditioning compressor to operate to the frequency of one pause platform for lasting preset time, and enabling the air-conditioning compressor to operate to the target frequency f. By judging whether the target frequency f is greater than the winding dividing point frequency f4, the motor of the air-conditioning compressor is controlled to be connected with the first winding mode or the second winding mode, and then the running frequency and the running time of the compressor on each pause platform (oil return platform) are controlled, so that the compressor runs stably and reliably.
Description
Technical Field
The application relates to the technical field of air conditioners, in particular to a control method and device of an inverter air conditioner and the inverter air conditioner.
Background
At present, along with the development of economy and the improvement of living standard, people have higher demands on variable frequency air conditioners with better comfort regulation and energy conservation.
When the air conditioner compressor of the existing air conditioner runs at certain frequency, resonance can be generated with a shell, a motor, a pipeline and the like, so that the noise is poor, and the pipeline stress exceeds the standard. After the air conditioner appeared protecting and removed, should slow running let the system stabilize, however along with the difference of indoor outside operating mode, the interior machine running load is different, to some special cases, can make air condition compressor's operation process unstable to probably lead to the unable normal operating of air condition compressor, cause the unstability of compressor operation.
Disclosure of Invention
The disclosed embodiments provide a control method and device of an inverter air conditioner and the inverter air conditioner, and the following presents a brief summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview and is intended to neither identify key/critical elements nor delineate the scope of such embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.
The embodiment of the disclosure provides a control method of a variable frequency air conditioner.
In some embodiments, the method comprises:
s1, calculating a target frequency f according to the temperature Tp of the inner coil of the indoor unit of the air conditioner;
s2, judging whether the target frequency f is larger than the winding dividing point frequency f4, if f is larger than or equal to f4, selecting a first winding mode of the motor, enabling the air-conditioning compressor to sequentially operate to the frequencies of two pause platforms for respectively continuing preset time, enabling the air-conditioning compressor to operate to the winding dividing point frequency f4, switching to a second winding mode of the motor for wiring, enabling the frequency of the air-conditioning compressor to operate to one pause platform for continuing preset time, and enabling the air-conditioning compressor to operate to the target frequency f.
The embodiment of the disclosure provides a control device of a variable frequency air conditioner.
In some embodiments, the apparatus comprises:
the calculation module is configured to calculate a target frequency f according to the temperature Tp of the inner coil of the indoor unit of the air conditioner;
a judging module configured to judge the magnitude of the target frequency f and a winding dividing point frequency f4 of a motor of an air conditioner compressor; and
and the control module is configured to control the air-conditioning compressor to select a first winding mode of the motor and enable the air-conditioning compressor to sequentially operate to the frequencies of two pause platforms for a preset time respectively according to the judgment that the target frequency f is greater than or equal to the dividing point frequency f4, enable the air-conditioning compressor to operate to the winding dividing point frequency f4, switch to a second winding mode of the motor for wiring, enable the frequency of the air-conditioning compressor to operate to one pause platform for the preset time, and enable the air-conditioning compressor to operate to the target frequency f.
The embodiment of the disclosure provides a variable frequency air conditioner.
In some embodiments, the inverter air conditioner includes: technical solution of any embodiment of the apparatus described above.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:
the control method of the inverter air conditioner provided by the disclosure judges whether the target frequency f is greater than the winding dividing point frequency f4, if f is greater than or equal to f4, the first winding mode of the motor is firstly performed, the air conditioner compressor is sequentially operated to the frequencies of two pause platforms for respectively continuing the preset time, the air conditioner compressor is operated to the winding dividing point frequency f4, the connection is switched to the second winding mode of the motor, the frequency of the air conditioner compressor which is operated to one pause platform continues the preset time, and the air conditioner compressor is operated to the target frequency f. The target frequency is determined through the temperature Tp of the inner coil pipe, whether the target frequency f is greater than the frequency f4 of the winding dividing point is judged, the motor of the air-conditioning compressor is controlled to be connected with the first winding mode or the second winding mode, and then the running frequency and the running time of the compressor on each pause platform (oil return platform) are controlled, so that the compressor can run more stably in the process of reaching the target frequency, and the compressor can run stably and reliably.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, are configured to explain the principles of the disclosure.
Fig. 1 is a flowchart illustrating a control method of an inverter air conditioner according to an embodiment of the present disclosure;
fig. 2 is another schematic flow chart illustrating a control method of an inverter air conditioner according to an embodiment of the present disclosure;
fig. 3 is a schematic diagram of an embodiment of a control device of an inverter air conditioner according to an embodiment of the disclosure;
fig. 4 is a schematic diagram of another embodiment of a control device of an inverter air conditioner according to an embodiment of the present disclosure;
fig. 5 is a schematic diagram of another embodiment of a control device of an inverter air conditioner according to an embodiment of the present disclosure;
FIG. 6 is a schematic diagram of a computing module of a control device of an inverter air conditioner according to an embodiment of the disclosure;
fig. 7 is a schematic structural diagram of an electronic device provided in an embodiment of the present disclosure.
Reference numerals;
10-a calculation module; 101-a temperature receiving unit; 102-a target frequency calculation unit; 20-a judging module; 30-a control module; 40-frequency comparison module; 50-time alignment module; 60-wind speed comparison module; 70-a real-time detection module; 200-a processor; 201-a memory; 202-a communication interface; 203-bus.
Detailed Description
So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing. So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.
As shown in fig. 1, an embodiment of the present disclosure provides a method for controlling an inverter air conditioner, including:
s1, calculating a target frequency f according to the temperature Tp of the inner coil of the indoor unit of the air conditioner;
alternatively, for example, the air conditioner may be powered on in a cooling mode, and the air conditioner may be provided with a real-time detection module 70, a calculation module 10, a determination module 20, and a control module 30, where the real-time detection module 70 obtains the temperature Tp of the inner coil through a temperature sensor, and certainly, the temperature Tp of the inner coil may also be directly obtained through other modules, and then the calculation module 10 calculates the target frequency f.
S2, judging whether the target frequency f is larger than the winding dividing point frequency f4, if f is larger than or equal to f4, selecting a first winding mode of the motor, enabling the air-conditioning compressor to sequentially operate to the frequencies of two pause platforms for respectively continuing preset time, enabling the air-conditioning compressor to operate to the winding dividing point frequency f4, switching to a second winding mode of the motor for wiring, enabling the frequency of the air-conditioning compressor to operate to one pause platform for continuing preset time, and enabling the air-conditioning compressor to operate to the target frequency f.
In step S2, optionally, if f is greater than or equal to f4, selecting the first winding manner and making the air conditioner compressor operate to the frequency of the first pause platform at the first preset operation speed V1 for the first pause time t1, operate to the frequency of the second pause platform at the second preset operation speed V2 for the second pause time t2 after the first pause time t1 is finished, and up-convert the air conditioner compressor to the winding boundary point frequency f4 after the second pause time t2 is finished; and switching to the second winding mode, enabling the air-conditioning compressor to operate according to a third preset operation speed V3 to a frequency f3 of a third stopping platform for a third stopping time t3, and enabling the air-conditioning compressor to increase the frequency to a target frequency f according to a fourth preset operation speed V4 after the third stopping time t3 is finished, wherein the motor windings of the air-conditioning compressor are a first winding with high impedance and a second winding with low impedance, the frequency of the first stopping platform is f1, the frequency of the second stopping platform is f2, the frequency of the third stopping platform is f3, both f1 and f2 are smaller than f4, and f3 is larger than f 4.
Alternatively, in the above operation, the first winding system of the motor may be a Y-type winding system, the second winding system may be a triangular winding system, the winding division point frequency f4, which is the winding division point frequency of the two winding systems, may be 65Hz (which may be adjusted according to the motor winding parameters), and the winding structure of the motor may be switched by the winding switching unit to select the Y-type or triangular connection system. Setting the frequency of the first pause platform as f1 (adjustable at 50 Hz) and the time as t1 (adjustable at 1 min); the frequency of the second stopping platform is f2(55Hz adjustable), and the time is t2(1min adjustable); the frequency of the third stopping platform is f3 (adjustable at 70 Hz), the time is t3 (adjustable at 1 min), the frequencies f1 and f2 of the three stopping platforms (oil return platforms) are set to be less than f4, and f3 is set to be greater than f 4.
In some optional embodiments, in step S2, a constant frequency boost is applied to the air conditioner compressor, and the first preset operation speed V1 is 0.5 to 2Hz/S, the second preset operation speed V2 is 0.5 to 2Hz/S, the third preset operation speed V3 is 0.5 to 2Hz/S, and the fourth preset operation speed V4 is 0.5 to 2 Hz/S.
As shown in fig. 2, in some embodiments, the method further comprises: s101, correcting the target frequency f according to a wind shield of a fan in an air conditioner room, and when the wind speed r of the wind shield of the fan in the air conditioner room is less than or equal to r1, negatively correcting the target frequency; when r is larger than r2, the target frequency is corrected in the forward direction, wherein r1 and r2 are preset wind speed values.
Optionally, when a windshield exists in the indoor unit of the air conditioner, a user starts the air conditioner firstly, selects a refrigeration mode, determines a target frequency f by detecting the temperature Tp of the inner coil of the indoor unit of the air conditioner firstly, then determines the target frequency f by setting f to K1 × Tp + c, K1 is the heat exchange coefficient of the inner coil, c is a frequency correction value, and determines c according to the wind speed of the windshield of the current indoor fan, wherein the optional value is 0 < K1 < 1.
The wind shield of the indoor fan is set to be silent, low wind, stroke, high wind and strong force, and the corresponding rotating speeds r are respectively 500rpm, 800rpm, 1200rpm, 1500rpm and 1700rpm (the rpm is the abbreviation of Revolentins Per minute and is Revolutions Per minute); the preset wind speed values r1 and r2 are 900rpm and 1500rpm respectively.
When different windshields exist in the indoor unit of the air conditioner, after the target frequency f is obtained through the calculation, the target frequency f is corrected according to the windshields of the indoor fan of the air conditioner; when the wind speed r of a wind shield of a fan in the air conditioner is less than or equal to r1, the target frequency is corrected in a negative direction, so that the coagulation or freezing is prevented; when r is greater than r1 and less than or equal to r2, the target frequency is not corrected; when r is more than r2, the target frequency is corrected in the positive direction, the superheat degree is prevented from being larger, and the capacity output of the evaporator is reduced; judging whether the target frequency f is greater than the winding boundary frequency f4, if f is greater than or equal to f4, selecting a first winding mode, enabling the air-conditioning compressor to operate to the frequency f1 of a first pause platform according to the first preset operation speed V1 of 2Hz/s for a first pause time t1(1min is adjustable), enabling the air-conditioning compressor to operate to the winding boundary frequency f4 after the first pause time is finished, switching the connection of a second winding mode at the moment, and enabling the air-conditioning compressor to operate to the frequency f2 of a second pause platform according to the second preset operation speed V2 of 2Hz/s for a second pause time t2(1min is adjustable); after the second pause time is finished, the frequency f from the second pause platform to the third pause platform is operated according to the third preset operation speed V3 of 2Hz/s for the third pause time t3(1min is adjustable); and after the third pause time is finished, the air-conditioning compressor is operated to the target frequency f2 according to the fourth preset operation speed V4 of 2Hz/s, and if f is more than or equal to f4, the heat exchange effect is quickly achieved, so that the operation of the compressor is more stable. And if f is less than f4, selecting the first winding mode to operate to the target frequency f. The air conditioner compressor is not limited to 2Hz/s according to the preset running speed and can be adjusted according to the requirement.
Optionally, when the air-conditioning indoor unit has no windshield, i.e. in a silent mode, firstly, the user starts the air-conditioning indoor unit, selects a refrigeration mode, firstly detects the temperature Tp of the inner coil of the air-conditioning indoor unit, the target frequency f is then determined by the inner coil temperature Tp, by setting f K1 Tp, K1 the inner coil heat transfer coefficient, optionally 0 < K1 < 1, after determining the target frequency f, determining whether the target frequency f is greater than the winding dividing point frequency f4, if f is greater than or equal to f4, the first winding type is selected, the frequency f1 of 2Hz/s running to the first pause stage at V1 is continued for a first pause time t1(1min adjustable), the frequency f2 from the operation to the second pause platform is continued for a second pause time t2(1min is adjustable) according to the second preset operation speed V2 being 2Hz/s, and the frequency of the air-conditioning compressor is increased to the frequency f4 of the winding demarcation point after the second pause time is finished; and switching to a second winding mode for operation, continuing the operation to the frequency f3 of a third pause platform for a third pause time t3 (the operation is adjustable for 1 min) according to the third preset operation speed V3 of 2Hz/s, and after the third pause time is finished, raising the frequency of the air-conditioning compressor to the target frequency f2 according to the fourth preset operation speed V4 of 2Hz/s, wherein if f is greater than or equal to f4, so that the heat exchange effect is quickly achieved, and the operation of the compressor is more stable. And if f is less than f4, selecting the first winding mode to operate to the target frequency f. The air conditioner compressor is not limited to 2Hz/s according to the preset running speed and can be adjusted according to the requirement.
In some optional embodiments, in step S2, the motor and the air conditioner compressor are connected by a winding switching unit, the winding structure of the motor is switched by the winding switching unit, and the switching operation of the winding switching unit is controlled according to the results of the determinations f and f 4.
The motor is a three-phase motor having three-phase windings of U-phase, V-phase, and W-phase, and two terminals of each phase winding of the motor are connected to the winding switching unit, and the winding switching unit switches the connection of the terminals to the Y-winding connection as the first winding system or the delta-winding connection as the second winding system.
The embodiment of the disclosure provides a control device of a variable frequency air conditioner.
As shown in fig. 3, in some embodiments, the control device of the inverter air conditioner includes:
a calculation module 10 configured to calculate a target frequency f according to an inner coil temperature Tp of the indoor unit of the air conditioner;
a judging module 20 configured to judge the magnitude of the target frequency f and a winding dividing point frequency f4 of a motor of an air conditioner compressor;
and the control module 30 is configured to control the air-conditioning compressor to select a first winding mode of the motor and sequentially operate the air-conditioning compressor to the frequencies of two pause platforms for a preset time respectively according to the judgment that the target frequency f is greater than or equal to the dividing point frequency f4 by the judgment module 20, operate the air-conditioning compressor to the winding dividing point frequency f4, switch to a second winding mode connection of the motor, operate the air-conditioning compressor to one pause platform for the preset time, and operate the air-conditioning compressor to the target frequency f.
In this embodiment, the calculating module 10 calculates the target frequency f according to the obtained inner coil temperature Tp, the determining module 20 determines the magnitude relationship between f and f4 according to the calculated target frequency f, the control module 30 controls the air conditioner compressor to select the first winding method (Y-winding method) of the motor according to the result that f is greater than or equal to f4, and the frequency of the air conditioner compressor running to a first pause platform continues for a first pause time, the frequency of the air conditioner compressor running to a second pause platform continues for a second pause time, the frequency of the air conditioner compressor running to a winding dividing point frequency f4 is switched to a second winding mode wiring mode (triangular winding mode) of the motor, and the frequency of the air conditioner compressor running to a third pause platform continues for a third pause time, and then the air conditioner compressor runs to the target frequency f.
As shown in fig. 4, in some embodiments, the apparatus further comprises:
a frequency comparison module 40 configured to compare the operating frequency of the air conditioner compressor with the frequency of the pause platform, obtain a comparison result, and send the comparison result to the control module 30;
the time comparison module 50 is configured to compare the running time of the air conditioner compressor with a preset pause platform time, obtain a comparison result, and send the comparison result to the control module 30;
The control module 30 controls the motor winding mode and the operating frequency of the air conditioner compressor according to the comparison result of the frequency comparison module 40, and then continuously controls the operating frequency of the air conditioner compressor according to the comparison result of the time comparison module 50.
In this embodiment, after the determining module 20 determines that f is greater than or equal to f4, the frequency comparing module 40 compares the operating frequency of the air conditioner compressor with the frequency of the pause platform and sends the comparison result of the time comparing module 50 to the control module 30, and the control module 30 controls the motor winding mode of the air conditioner compressor according to the comparison result, so as to control the operating frequency of the air conditioner compressor to operate to the target frequency value.
As shown in fig. 4, in some embodiments, the apparatus further comprises:
a wind speed comparison module 60 configured to compare the wind speed of the windshield of the indoor unit of the air conditioner with a preset wind speed, obtain a comparison result, and send the comparison result to the control module 30;
the control module 30 corrects the target frequency f according to the comparison result of the wind speed comparison module 60.
In this embodiment, on the basis of the frequency comparison module 40 and the time comparison module 50, the comparison result obtained by the wind speed comparison module 60 may be sent to the control module 30, the control module 30 corrects the target frequency according to the comparison result of the wind speed comparison module 60, the determination module 20 determines the magnitude relationship between f and f4 according to the corrected target frequency f, and then sends the relationship to the control module 30, and the control module 30 controls the motor winding mode of the air conditioner compressor according to the determination result, so as to control the operation frequency of the air conditioner compressor to the target frequency value.
As shown in fig. 5, in some embodiments, the apparatus further comprises:
real-time detection module 70, is configured to detect in real time the operating frequency, the operating time, the windshield wind speed and the interior coil temperature Tp of air condition compressor, and will detect interior coil temperature Tp send to calculation module 10, detect the operating frequency of air condition compressor send to frequency comparison module 40, detect the operating time of air condition compressor send to time comparison module 50, detect the windshield wind speed of air condition compressor send to wind speed comparison module 60.
In this embodiment, the frequency comparison module 40, the time comparison module 50 and the wind speed comparison module 60 may obtain corresponding parameters by detecting the operating frequency, the operating time and the wind speed of the wind shield of the air conditioning compressor in real time through the real-time detection module 70, and the calculation module 10 may also obtain corresponding parameters by detecting the temperature Tp of the inner coil in real time through the real-time detection module 70.
As shown in fig. 6, in some embodiments, the calculation module 10 includes:
a temperature receiving unit 101 configured to receive the inner coil temperature Tp detected by the real-time detection module; and
A target frequency calculation unit 102 configured to calculate the target frequency f from the calculation result of the temperature receiving unit 101.
In this embodiment, after obtaining the temperature Tp of the internal coil, the temperature receiving unit 101 sends the temperature Tp to the target frequency calculating unit 102, and the target frequency calculating unit 102 calculates the target frequency f according to the received temperature Tp of the internal coil.
The embodiment of the disclosure provides a variable frequency air conditioner.
In some embodiments, the inverter air conditioner includes the apparatus of any of the above embodiments:
in this embodiment, the inverter air conditioner includes the apparatus according to any of the above embodiments, so that all the advantages of the apparatus are achieved, and details are not repeated herein.
An embodiment of the present disclosure provides an electronic device, a structure of which is shown in fig. 7, the electronic device including:
at least one processor (processor)200, one processor 200 being exemplified in fig. 7; and a memory (memory)201, and may further include a Communication Interface (Communication Interface)202 and a bus 203. The processor 200, the communication interface 202 and the memory 201 can communicate with each other through the bus 203. The communication interface 202 may be used for information transfer. The processor 200 may call the logic instructions in the memory 201 to execute the control method of the above-described embodiment.
In addition, the logic instructions in the memory 201 may be implemented in the form of software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products.
The memory 201 is a computer-readable storage medium, and can be used for storing software programs, computer-executable programs, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 200 executes the functional application and data processing by executing the software program, instructions and modules stored in the memory 201, that is, implements the control method in the above-described method embodiment.
The memory 201 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal device, and the like. Further, the memory 201 may include a high-speed random access memory, and may also include a nonvolatile memory.
The technical solution of the embodiments of the present disclosure may be embodied in the form of a software product, where the computer software product is stored in a storage medium and includes one or more instructions to enable a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method of the embodiments of the present disclosure. And the aforementioned storage medium may be a non-transitory storage medium comprising: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes, and may also be a transient storage medium.
The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The scope of the disclosed embodiments includes the full ambit of the claims, as well as all available equivalents of the claims. As used in this application, although the terms "first," "second," etc. may be used in this application to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, unless the meaning of the description changes, so long as all occurrences of the "first element" are renamed consistently and all occurrences of the "second element" are renamed consistently. The first and second elements are both elements, but may not be the same element. Furthermore, the words used in the specification are words of description only and are not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and/or" as used in this application is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, the terms "comprises" and/or "comprising," when used in this application, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method or apparatus that comprises the element. In this document, each embodiment may be described with emphasis on differences from other embodiments, and the same and similar parts between the respective embodiments may be referred to each other. For methods, products, etc. of the embodiment disclosures, reference may be made to the description of the method section for relevance if it corresponds to the method section of the embodiment disclosure.
Those of skill in the art would appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software may depend upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the disclosed embodiments. It can be clearly understood by the skilled person that, for convenience and brevity of description, the specific working processes of the system, the apparatus and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments disclosed herein, the disclosed methods, products (including but not limited to devices, apparatuses, etc.) may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units may be merely a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form. The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to implement the present embodiment. In addition, functional units in the embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. In the description corresponding to the flowcharts and block diagrams in the figures, operations or steps corresponding to different blocks may also occur in different orders than disclosed in the description, and sometimes there is no specific order between the different operations or steps. For example, two sequential operations or steps may in fact be executed substantially concurrently, or they may sometimes be executed in the reverse order, depending upon the functionality involved. Each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by special purpose hardware-based systems that perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
Claims (10)
1. A control method of an inverter air conditioner is characterized by comprising the following steps:
calculating a target frequency f according to the temperature Tp of an inner coil of the indoor unit of the air conditioner;
and judging whether the target frequency f is greater than the winding boundary frequency f4, if f is greater than or equal to f4, selecting a first winding mode of the motor, enabling the air-conditioning compressor to sequentially operate to the frequencies of two pause platforms for respectively lasting preset time, enabling the air-conditioning compressor to operate to the winding boundary frequency f4, switching to a second winding mode of the motor for wiring, enabling the air-conditioning compressor to operate to the frequency of one pause platform for lasting preset time, and enabling the air-conditioning compressor to operate to the target frequency f.
2. The method of claim 1, further comprising:
correcting the target frequency f according to the wind shield of the indoor fan of the air conditioner, and when the wind speed r of the wind shield of the indoor fan of the air conditioner is less than or equal to r1, negatively correcting the target frequency; when r is larger than r2, the target frequency is corrected in the forward direction, wherein r1 and r2 are preset wind speed values.
3. The method of claim 1, further comprising:
if f is greater than or equal to f4, selecting the first winding mode, enabling the air-conditioning compressor to operate to the frequency of the first pause platform according to the first preset operation speed V1 for the first pause time t1, operating to the frequency of the second pause platform according to the second preset operation speed V2 for the second pause time t2 after the first pause time t1 is finished, and enabling the air-conditioning compressor to be increased to the winding dividing point frequency f4 after the second pause time t2 is finished; and switching to the second winding mode, enabling the air-conditioning compressor to operate according to a third preset operation speed V3 to a frequency f3 of a third stopping platform for a third stopping time t3, and enabling the air-conditioning compressor to increase the frequency to a target frequency f according to a fourth preset operation speed V4 after the third stopping time t3 is finished, wherein the motor windings of the air-conditioning compressor are a first winding with high impedance and a second winding with low impedance, the frequency of the first stopping platform is f1, the frequency of the second stopping platform is f2, the frequency of the third stopping platform is f3, both f1 and f2 are smaller than f4, and f3 is larger than f 4.
4. The method of claim 3, further comprising:
and raising or lowering the frequency of the air conditioner compressor at a constant speed.
5. A control device of a variable frequency air conditioner is characterized by comprising:
the calculation module is configured to calculate a target frequency f according to the temperature Tp of the inner coil of the indoor unit of the air conditioner;
a judging module configured to judge the magnitude of the target frequency f and a winding dividing point frequency f4 of a motor of an air conditioner compressor; and
and the control module is configured to control the air-conditioning compressor to select a first winding mode of the motor and enable the air-conditioning compressor to sequentially operate to the frequencies of two pause platforms for a preset time respectively according to the judgment that the target frequency f is greater than or equal to the dividing point frequency f4, enable the air-conditioning compressor to operate to the winding dividing point frequency f4, switch to a second winding mode of the motor for wiring, enable the frequency of the air-conditioning compressor to operate to one pause platform for the preset time, and enable the air-conditioning compressor to operate to the target frequency f.
6. The apparatus of claim 5, further comprising:
the frequency comparison module is configured to compare the operating frequency of the air conditioner compressor with the frequency of the pause platform, obtain a comparison result and send the comparison result to the control module;
The time comparison module is configured to compare the running time of the air conditioner compressor with the preset pause platform time, obtain a comparison result and send the comparison result to the control module;
the control module controls the motor winding mode and the operating frequency of the air-conditioning compressor according to the comparison result of the frequency comparison module, and then continuously controls the operating frequency of the air-conditioning compressor according to the comparison result of the time comparison module.
7. The apparatus of claim 6, further comprising:
the air speed comparison module is configured to compare the wind speed of a windshield of the indoor unit of the air conditioner with a preset wind speed, obtain a comparison result and send the comparison result to the control module;
and the control module corrects the target frequency f according to the comparison result of the wind speed comparison module.
8. The apparatus of claim 7, further comprising:
the real-time detection module is configured to detect the operating frequency, the operating time, the windshield wind speed and the inner coil temperature Tp of the air conditioner compressor in real time, and the inner coil temperature Tp is detected to be sent to the calculation module, the operating frequency of the air conditioner compressor is detected to be sent to the frequency comparison module, the operating time of the air conditioner compressor is detected to be sent to the time comparison module, and the windshield wind speed of the air conditioner compressor is detected to be sent to the wind speed comparison module.
9. The apparatus of claim 8, wherein the computing module comprises:
a temperature receiving unit configured to receive the inner coil temperature Tp detected by the real-time detection module; and
a target frequency calculation unit configured to calculate the target frequency f according to the inner coil temperature Tp received by the temperature receiving unit.
10. An inverter air conditioner characterized by comprising the apparatus of any one of claims 5 to 9.
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