Methods for determining air conditioner fan compatibility, electronic equipment, air conditioners and storage media

By obtaining the motor parameters and operating parameters of the air conditioner fan, it is possible to determine whether the fan is compatible, thus solving the problem of inaccurate fan compatibility in air conditioner production and after-sales service, ensuring the normal operation of the fan, and improving the efficiency of production and after-sales service as well as the user experience.

CN118998942BActive Publication Date: 2025-11-14QINGDAO HAIER AIR CONDITIONING ELECTRONICS CO LTD +3
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Patent Information

Application Number
CN202310564730.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-05-18
Publication Date
2025-11-14
Estimated Expiration
2043-05-18

AI Technical Summary

Technical Problem

In the process of air conditioner production and sales, when there is a shortage of fan manufacturers or when an air conditioner is compatible with multiple fan models, traditional methods cannot accurately determine whether the fan is compatible, leading to problems such as abnormal fan operation.

Method used

By acquiring the current motor parameters of the wind turbine, including line-to-line inductance, phase-to-phase resistance, and back EMF, the wind turbine is driven to run. The operating parameters such as phase current, IPM temperature, and DC bus voltage are also acquired. It is determined whether these parameters meet the preset thresholds to determine whether the wind turbine is compatible, and a fault prompt is issued if it is not compatible.

Benefits of technology

It ensures normal operation when the air conditioner and fan are compatible, improves the efficiency of air conditioner production and after-sales service, and enhances the user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention relates to the field of air conditioning technology, specifically providing a method, electronic device, air conditioner, and storage medium for determining air conditioner fan compatibility. The aim is to solve the problem of accurately determining whether an air conditioner and fan are compatible, ensuring the normal operation of the fan. To this end, the method of this invention includes: acquiring the current motor parameters of the fan; driving the fan to operate based on the motor parameters; acquiring the fan operating parameters; and determining whether the fan is compatible based on the fan operating parameters. Through the above implementation, parameter identification is automatically performed when the air conditioner is being adapted to the fan, and the fan is driven to operate based on the identified parameters, thereby acquiring the fan operating parameters. This allows for accurate determination of whether the air conditioner and fan are compatible, improving the efficiency of air conditioner production and after-sales service, and enhancing the user experience.
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Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, specifically to a method for determining the compatibility of an air conditioning fan, an electronic device, an air conditioner, and a storage medium. Background Technology

[0002] During the production and sales of air conditioners, there may be situations where the supply of fans from the fan manufacturer is interrupted, requiring the search for a new supplier, or a single air conditioner may be compatible with multiple fan models, making after-sales maintenance and fan replacement inconvenient.

[0003] Traditional methods rely solely on parameters such as the rated power, rated speed, and number of pole pairs of the fan motor to determine compatibility between air conditioners and fans. However, different manufacturers have different production processes, which may result in different fans having the same rated power, rated speed, and number of pole pairs, but inconsistent parameters such as inter-line inductance (Ld, Lq), inter-phase resistance Res, and back EMF Ke. Furthermore, for different permanent magnet synchronous motors (PMSMs) in fans, the fan drive program relies heavily on parameters such as Ld, Lq, Res, and Ke when there is no speed sensor for control.

[0004] Therefore, a new technical solution is needed in this field to solve or partially solve the above-mentioned technical problems, namely, how to accurately determine whether the air conditioner fan is compatible and ensure its normal operation when the air conditioner fan is out of stock and needs to be adapted to a new manufacturer's fan or when production and after-sales personnel replace the fan. Summary of the Invention

[0005] To overcome the above-mentioned defects, the present invention is proposed to provide a method, electronic device, air conditioner and storage medium for determining the compatibility of an air conditioner and a fan, which solves or at least partially solves the technical problem of how to accurately determine whether an air conditioner and a fan are compatible and ensure the normal operation of the fan.

[0006] Firstly, a method for determining the compatibility of an air conditioner fan is provided, the method comprising:

[0007] S1. Obtain the current motor parameters of the fan;

[0008] S2. Drive the fan to operate based on the motor parameters;

[0009] S3. Obtain the fan operating parameters;

[0010] S4. Determine whether the fan is suitable based on the fan operating parameters.

[0011] In one technical solution of the above method for determining the compatibility of an air conditioner fan, the fan operating parameters include phase current, power module (IPM) temperature, and DC bus voltage; the step of determining whether the fan is compatible based on the fan operating parameters includes:

[0012] Determine whether the phase current, the IPM temperature, and the DC bus voltage all meet the corresponding preset parameter thresholds;

[0013] Based on the judgment result, it is determined whether the fan is suitable.

[0014] In one technical solution of the above method for determining the compatibility of an air conditioner fan, the step of determining whether the fan is compatible based on the determination result includes:

[0015] If the phase current, the IPM temperature, and the DC bus voltage all meet the corresponding preset parameter thresholds, then the fan is determined to be compatible.

[0016] If at least one of the phase current, the IPM temperature, and the DC bus voltage does not meet the corresponding preset parameter threshold, then the fan is determined to be unsuitable, or steps S1-S4 are repeated.

[0017] In one technical solution of the above method for determining the compatibility of an air conditioner fan, after repeatedly executing steps S1-S4, the method further includes:

[0018] If the repeated execution of steps S1-S4 reaches a preset number of times, and at least one of the phase current, the IPM temperature, and the DC bus voltage still does not meet the corresponding preset parameter threshold, then the fan is determined to be unsuitable.

[0019] In one technical solution of the above method for determining the compatibility of an air conditioner fan, the motor parameters of the current fan include line-to-line inductance, phase-to-phase resistance, and back EMF; obtaining the motor parameters of the current fan includes:

[0020] Receive fan adaptation commands;

[0021] The line-to-line inductance, phase-to-phase resistance, and back EMF are obtained based on the wind turbine adaptation instructions.

[0022] In one technical solution of the above method for determining the compatibility of an air conditioner fan, obtaining the fan operating parameters includes:

[0023] When the fan is driven to operate within the preset speed range corresponding to the air conditioner based on the motor parameters, the fan operating parameters are obtained.

[0024] In one technical solution of the above-mentioned method for determining the compatibility of an air conditioner fan, the method further includes:

[0025] If the fan is determined to be incompatible based on the fan operating parameters, a fault warning will be issued.

[0026] In a second aspect, an electronic device is provided, comprising a processor and a storage device, the storage device being adapted to store a plurality of program codes, the program codes being adapted to be loaded and executed by the processor to perform the method for determining air conditioner fan compatibility as described in any of the above-described technical solutions.

[0027] In a third aspect, an air conditioner is provided, which includes an air conditioner body and the electronic equipment described in the above-mentioned electronic equipment technical solution.

[0028] In a fourth aspect, a computer-readable storage medium is provided, wherein a plurality of program codes are stored therein, the program codes being adapted to be loaded and run by a processor to perform the method for determining air conditioner fan compatibility as described in any of the above-described technical solutions.

[0029] The present invention comprises one or more of the following technical solutions:

[0030] Beneficial effects:

[0031] In implementing the technical solution of this invention, the motor parameters of the current fan can be obtained first, and the fan can be driven to run based on the motor parameters. Then, the fan operating parameters can be obtained, and the fan compatibility can be determined based on the fan operating parameters. Through the above implementation method, when the air conditioner is adapted to the fan, parameter identification is automatically performed, and the fan is driven to run according to the identified parameters, thereby obtaining the fan operating parameters and accurately determining whether the air conditioner and the fan are compatible. Furthermore, the fan can be driven to run normally when the air conditioner and the fan are compatible, and a fault prompt can be given in a timely manner when the air conditioner and the fan are incompatible, which can improve the efficiency of air conditioner production and after-sales service and improve the user experience. Attached Figure Description

[0032] The disclosure of this invention will become more readily understood with reference to the accompanying drawings. It will be readily understood by those skilled in the art that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention. Wherein:

[0033] Figure 1 This is a schematic flowchart of the main steps of a method for determining the compatibility of an air conditioner fan according to an embodiment of the present invention;

[0034] Figure 2 This is a schematic flowchart of the main steps for obtaining the motor parameters of a current wind turbine according to an embodiment of the present invention;

[0035] Figure 3 This is a schematic diagram of the vector control principle of a permanent magnet synchronous motor according to an embodiment of the present invention;

[0036] Figure 4This is a schematic flowchart of the main steps for determining whether a fan is suitable based on its operating parameters according to an embodiment of the present invention.

[0037] Figure 5 This is a schematic diagram of the main structure of an electronic device according to an embodiment of the present invention.

[0038] List of reference numerals in the attached diagram:

[0039] 501: Processor; 502: Storage device. Detailed Implementation

[0040] Some embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0041] In the description of this invention, "module" and "processor" can include hardware, software, or a combination of both. A module can include hardware circuitry, various suitable sensors, communication ports, memory, and may also include software components, such as program code, or a combination of software and hardware. A processor can be a central processing unit, microprocessor, image processor, digital signal processor, or any other suitable processor. The processor has data and / or signal processing capabilities. The processor can be implemented in software, in hardware, or a combination of both. Non-transitory computer-readable storage media includes any suitable medium capable of storing program code, such as magnetic disks, hard disks, optical disks, flash memory, read-only memory, random access memory, etc. The term "A and / or B" means all possible combinations of A and B, such as only A, only B, or A and B. The terms "at least one A or B" or "at least one of A and B" have a similar meaning to "A and / or B" and can include only A, only B, or A and B. The singular terms "a" or "this" can also include plural forms.

[0042] Here we will first explain some of the terms involved in this invention.

[0043] Line-to-line inductance: This is a property of a closed circuit. When current flows through a coil, a magnetic field is induced within it. This induced magnetic field then generates an induced current that opposes the current flowing through the coil. This interaction between the current and the coil is called inductive reactance, or inductance. Line-to-line inductance includes Ld and Lq, where Ld is the direct-axis inductance of the motor, and Lq is the quadrature-axis inductance.

[0044] Phase-to-phase resistance (Res): This refers to the resistance between each phase in a motor. In a motor, current flows through the windings, generating a magnetic field that causes the motor to rotate. Phase resistance is a crucial parameter that directly affects the motor's performance and efficiency.

[0045] Back electromotive force (EMF) Ke: This refers to the electromotive force generated against the tendency of a current to change. Back EMF is commonly found in electromagnetic coils, such as relay coils, solenoid valves, contactor coils, motors, and inductors.

[0046] As described in the background section, during the production and sales of air conditioners, there may be situations where the supply of fans from the fan manufacturer is interrupted, requiring the search for a new supplier, or where an air conditioner is compatible with multiple fan models, making after-sales maintenance and fan replacement inconvenient.

[0047] Traditional methods rely solely on parameters such as the rated power, rated speed, and number of pole pairs of the fan motor to determine compatibility between air conditioners and fans. However, different manufacturers have different production processes, which may result in different fans having the same rated power, rated speed, and number of pole pairs, but inconsistent parameters such as inter-line inductance (Ld, Lq), inter-phase resistance Res, and back EMF Ke. Furthermore, for different permanent magnet synchronous motors (PMSMs) in fans, the fan drive program relies heavily on parameters such as Ld, Lq, Res, and Ke when there is no speed sensor for control.

[0048] Therefore, a new technical solution is needed in this field to solve or partially solve the above-mentioned technical problems, namely, how to accurately determine whether the air conditioner fan is compatible and ensure its normal operation when the air conditioner fan is out of stock and needs to be adapted to a new manufacturer's fan or when production and after-sales personnel replace the fan.

[0049] To address the aforementioned problems, this invention provides a method for determining the compatibility of an air conditioner fan, an electronic device, an air conditioner, and a storage medium.

[0050] See appendix Figure 1 , Figure 1 This is a schematic flowchart illustrating the main steps of a method for determining the compatibility of an air conditioner fan according to an embodiment of the present invention. Figure 1 As shown, the method for determining the compatibility of an air conditioner fan in this embodiment of the invention mainly includes the following steps S101 to S104.

[0051] Step S101: Obtain the motor parameters of the current fan.

[0052] Step S102: Drive the fan to run based on motor parameters.

[0053] Step S103: Obtain the fan operating parameters.

[0054] Step S104: Determine whether the fan is compatible based on the fan operating parameters.

[0055] Based on the methods described in steps S101 to S103 above, parameter identification is automatically performed when the air conditioner is paired with the fan, and the fan is driven to operate according to the identified parameters, thereby obtaining the fan operating parameters and accurately determining whether the air conditioner and the fan are compatible. Furthermore, the fan can be driven to operate normally when the air conditioner and the fan are compatible, and fault prompts can be provided in a timely manner when they are incompatible, which can improve the efficiency of air conditioner production and after-sales service, and enhance the user experience.

[0056] The following provides a further explanation of steps S101 to S104.

[0057] In the method for determining the compatibility of an air conditioner fan provided by the present invention, the air conditioner's electronic controller includes at least a fan drive module, a fan test module, and a communication module.

[0058] An air conditioner fan includes at least a motor, casing, impeller, and air inlet.

[0059] Currently, commonly used motors for air conditioner fans include induction motors, synchronous motors, and asynchronous motors. Among them, permanent magnet synchronous motors (PMSMs) are widely used due to their advantages such as simple structure, high power density, high power factor, and high efficiency.

[0060] Permanent magnet synchronous motors are mainly composed of components such as rotor, end cover and stator. The stator structure of permanent magnet synchronous motors is very similar to that of ordinary induction motors. The biggest difference between the rotor structure and asynchronous motors is that high-quality permanent magnet poles are placed on the rotor. Depending on the position of the permanent magnets on the rotor, permanent magnet synchronous motors are usually divided into surface rotor structure and built-in rotor structure.

[0061] Permanent magnet synchronous motors employ control algorithms such as vector control, field weakening control, and sensorless control. For different permanent magnet synchronous motors, sensorless control relies heavily on parameters such as line-to-line inductance, phase-to-phase resistance, and back EMF. Therefore, the compatibility of a wind turbine can be determined by obtaining the motor parameters of the current wind turbine.

[0062] In some embodiments of step S101 above, the motor parameters of the current wind turbine obtained include line inductance Ld, Lq, phase resistance Res, and back EMF Ke, etc.

[0063] See appendix Figure 2 , Figure 2 This is a schematic flowchart illustrating the main steps of obtaining the motor parameters of a current wind turbine according to an embodiment of the present invention. Figure 2 As shown, step S101 mainly includes the following steps S1011 to S1012.

[0064] Step S1011: Receive the wind turbine adaptation command.

[0065] Step S1012: Obtain the line inductance Ld, Lq, phase resistance Res, and back EMF Ke based on the fan adaptation command.

[0066] In some implementations, when it is necessary to determine whether the air conditioner and the fan are compatible, a fan compatibility command can be sent to the air conditioner's electronic controller via the air conditioner remote control or other controller.

[0067] For example, if two air conditioner fan manufacturers produce two fans with identical parameters such as rated motor power, rated speed, and number of motor pole pairs, and one of the fans is a mass-produced model, and it is necessary to determine whether a new fan can replace the original fan, or if an air conditioner is compatible with multiple fan models, and after-sales maintenance requires replacing the fan, the staff can send a fan compatibility command to the air conditioner's electronic controller through the air conditioner remote control or other controllers.

[0068] Furthermore, after receiving the fan adaptation command, the air conditioner controller's communication module sends the fan adaptation command to the fan drive module, which then obtains the current fan motor parameters.

[0069] In some implementations, the fan drive module can obtain the motor parameters of the current fan through parameter identification.

[0070] Parameter identification includes offline parameter identification and online parameter identification.

[0071] Offline parameter identification involves detecting and calculating motor parameters by applying various types of excitation signals, such as voltage and current, to the motor before it starts running.

[0072] Offline parameter identification methods are further divided into static parameter identification when the motor is completely stationary and dynamic parameter identification when the motor is rotating. There are also parameter detection methods that use external devices and methods that rely solely on the frequency converter itself for excitation and detection without adding any devices.

[0073] Commonly used static parameter identification methods include impulse response method, step response method, and frequency response method.

[0074] Online parameter identification adjusts the controller parameters based on relevant algorithms, thereby improving the system's control performance.

[0075] Commonly used online parameter identification methods include least squares method, extended Kalman filter method, model parameter adaptive method, and other intelligent identification (neural network, genetic optimization) algorithms.

[0076] Among them, the least squares identification method has strong applicability and few restrictions, so it is also commonly used in parameter identification; the model reference adaptive method depends on the quality of the adaptive rate design; the extended Kalman filter method can identify multiple parameters at the same time, but the computational load is slightly larger.

[0077] Offline parameter identification can provide initial motor parameter values ​​for the control system, but it cannot track parameter changes during online motor operation. Online parameter identification can track motor parameter changes in real time, but in practical applications, motors are usually directly connected to the load, making it impossible to achieve no-load rotation or even arbitrary rotation. Therefore, in practical applications, those skilled in the art can choose the parameter identification method according to the specific scenario, and no limitations are imposed here.

[0078] Since the high-frequency injection method is less affected by the rotor position rotation, it can achieve offline and online identification, and even estimate the motor rotor position while identifying parameters. Therefore, in some implementations, the high-frequency injection method can be selected to obtain the motor parameters of the current fan.

[0079] See appendix Figure 3 , Figure 3 This is a schematic diagram of the vector control principle of a permanent magnet synchronous motor according to an embodiment of the present invention.

[0080] like Figure 3 As shown in the figure, the system includes a permanent magnet synchronous motor (PMSM), PI controllers (first PI controller, second PI controller and third PI controller), IPARK conversion module, Clark conversion module, PARK conversion module, space vector modulation module, inverter, SMO observation module and parameter identification module.

[0081] Among them, the PI controller is a linear controller. It uses the control deviation between the given value and the actual output value to form the control quantity by linearly combining the proportional and integral of the deviation, thereby controlling the controlled object.

[0082] The IPARK transformation module, Clark transformation module, and PARK transformation module are all coordinate transformation modules used to analyze motor operation.

[0083] Among them, the IPARK transformation represents the transformation from two phases stationary relative to the rotor to two phases stationary relative to the stator; the Clark transformation represents the transformation from three stationary coordinates to two stationary coordinates; and the Park transformation represents the transformation from stationary coordinate axes to rotating coordinate axes.

[0084] The space vector modulation module is used for field-oriented control of induction motors and permanent magnet synchronous motors.

[0085] Inverters are used to convert direct current (DC) into alternating current (AC).

[0086] The SMO observation module is used to estimate the induced electromotive force, speed, and position of the motor.

[0087] The parameter identification module is used to calculate motor parameters.

[0088] Furthermore, in some implementations, based on Figure 3 The schematic diagram of the permanent magnet synchronous motor vector control shown below illustrates the following steps for obtaining the motor parameters of the current wind turbine using the high-frequency injection method:

[0089] (1) Collect the current signal at the input terminal of the permanent magnet synchronous motor, and input the stator currents ia, ib, and ic of phases a, b, and c into the Clark conversion module to obtain the currents iα and iβ of the αβ axis;

[0090] (2) The Clark transformation module inputs the currents iα and iβ of the αβ axis into the PARK transformation module to obtain the actual current values ​​id and iq of the dq axis;

[0091] (3) Subtract the actual motor speed value wr calculated by the SMO observer from the given speed value wr* of the motor, and input the difference into the first PI controller to obtain the given current value iq* of the q axis and the given current value id* of the d axis;

[0092] (4) Subtract the actual current value id obtained by the PARK conversion module from the given current value id* of the d-axis, and input the difference to the second PI controller to obtain the voltage Ud; Subtract the actual current value iq obtained by the PARK conversion module from the given current value iq* of the q-axis, and input the difference to the third PI controller to obtain the voltage Uq;

[0093] (5) Add the injected high-frequency sinusoidal voltage to the voltages Ud and Uq and input them to the IPARK conversion module to obtain the voltages Uα and Uβ on the αβ axis;

[0094] (6) Input Uα and Uβ into the space vector pulse width modulation module to obtain the inverter switching control signal;

[0095] (7) The space pulse width vector modulation module inputs the inverter switching control signal into the inverter to obtain the input voltage of the permanent magnet synchronous motor;

[0096] (8) Input the actual dq axis current values ​​id and iq obtained in step (2) into the parameter identification module unit to calculate the dq axis inductance values ​​Ld and Lq.

[0097] The above is the relevant content on obtaining the motor parameters of the current wind turbine through the high-frequency injection method.

[0098] In some implementations, as temperature and load current change, the inductance, resistance, and magnetic flux of the permanent magnet synchronous motor will change, causing the control model and sensorless observation model required by the motor to gradually deviate from the design model. Therefore, parameter identification can also be used to improve the control performance of the motor.

[0099] It should be noted that the above examples of methods for obtaining the motor parameters of the current wind turbine are only for illustrative purposes. In practical applications, those skilled in the art can choose according to the specific scenario, and no limitation is made here.

[0100] The above is a further explanation of step S101.

[0101] In some embodiments of step S102 above, after the fan drive module obtains the motor parameters of the current fan, it can drive the fan to start running based on the motor parameters.

[0102] Furthermore, in some embodiments of step S103 above, when the fan is driven to run to the preset speed range corresponding to the air conditioner based on the motor parameters, the fan operating parameters are obtained.

[0103] Specifically, when the fan drive module drives the fan to the speed range corresponding to the air conditioner model, the fan test module initiates a fan test command and obtains the fan operating parameters.

[0104] In some implementations, the wind turbine operating parameters include phase current, power module (IPM) temperature, and DC bus voltage.

[0105] The power module (IPM), also known as the inverter, is one of the most important components of a variable frequency air conditioner, essentially acting as its brain. The IPM integrates power switching devices and drive circuits, and also incorporates fault detection circuits for overvoltage, overcurrent, and overheating. It can send detection signals to the CPU and consists of high-speed, low-power transistors, optimized gate drive circuits, and fast protection circuits.

[0106] The above is a further explanation of step S103. The following is a further explanation of step S104.

[0107] In some embodiments of step S104 above, see Appendix Figure 4 , Figure 4 This is a schematic flowchart illustrating the main steps of determining whether a wind turbine is suitable based on its operating parameters, according to an embodiment of the present invention. Figure 4 As shown, step S104 mainly includes the following steps S1041 to S1042.

[0108] Step S1041: Determine whether the phase current, IPM temperature and DC bus voltage all meet the corresponding preset parameter thresholds.

[0109] Specifically, the preset parameter thresholds for parameters such as phase current, IPM temperature, and DC bus voltage of air conditioner fans vary for different models. In practical applications, those skilled in the art can set the preset parameter thresholds for parameters such as phase current, IPM temperature, and DC bus voltage of air conditioner fans according to the specific air conditioner model, which is not limited here.

[0110] Step S1042: Determine whether the fan is compatible based on the judgment result.

[0111] Specifically, if the phase current, IPM temperature, and DC bus voltage all meet the corresponding preset parameter thresholds, the fan is deemed compatible. At this point, the fan can be driven to operate normally.

[0112] If at least one of the phase current, IPM temperature and DC bus voltage does not meet the corresponding preset parameter threshold, the fan is determined to be unsuitable, or steps S101 to S104 are repeated.

[0113] In some implementations, the motor parameters of the current fan may be inaccurate due to factors such as environment and temperature. Therefore, steps S101 to S104 can be repeated to determine whether the fan is compatible.

[0114] Furthermore, if steps S101 to S104 are repeated a preset number of times (e.g., three times), and at least one parameter among phase current, IPM temperature, and DC bus voltage still does not meet the corresponding preset parameter threshold, then the fan is determined to be unsuitable.

[0115] Furthermore, if the fan is determined to be incompatible based on its operating parameters, a fault warning will be issued.

[0116] Specifically, fault prompts can be sent to relevant personnel via the communication module of the electronic controller, or by issuing alarm sounds, flashing fault lights, or displaying compatibility failures on the screen. No specific method is specified here.

[0117] The above is a further explanation of step S104.

[0118] Through the above implementation method, when the air conditioner is matched with the fan, the parameters are automatically identified and the fan is driven to run according to the identified parameters, thereby obtaining the fan operating parameters and accurately determining whether the air conditioner and the fan are compatible.

[0119] Furthermore, the ability to drive the fan to operate normally when the air conditioner and fan are compatible, and to promptly provide fault indications when the air conditioner and fan are incompatible, can improve the efficiency of air conditioner production and after-sales service, and enhance the user experience.

[0120] It should be noted that although the steps in the above embodiments are described in a specific order, those skilled in the art will understand that in order to achieve the effects of the present invention, different steps do not necessarily have to be executed in such an order. They can be executed simultaneously (in parallel) or in other orders, and these variations are all within the scope of protection of the present invention.

[0121] Those skilled in the art will understand that all or part of the processes in the method of the above embodiment of the present invention can also be implemented by a computer program instructing related hardware. The computer program can be stored in a computer-readable storage medium, and when executed by a processor, it can implement the steps of the various method embodiments described above. The computer program includes computer program code, which can be in the form of source code, object code, executable file, or some intermediate form. The computer-readable storage medium can include any entity or device capable of carrying the computer program code, a medium, a USB flash drive, a portable hard drive, a magnetic disk, an optical disk, a computer memory, a read-only memory, a random access memory, an electrical carrier signal, a telecommunication signal, and a software distribution medium, etc.

[0122] Furthermore, the present invention also provides an electronic device. (See appendix.) Figure 5 , Figure 5 This is a schematic diagram of the main structure of an electronic device according to an embodiment of the present invention. Figure 5 As shown, the electronic device in this embodiment of the invention mainly includes a processor 501 and a storage device 502. The storage device 502 can be configured to store a program for executing the method of determining air conditioner fan compatibility in the above-described method embodiments. The processor 501 can be configured to execute the program in the storage device 502, which includes, but is not limited to, the program for executing the method of determining air conditioner fan compatibility in the above-described method embodiments. For ease of explanation, only the parts related to the embodiments of the present invention are shown. For specific technical details not disclosed, please refer to the method section of the embodiments of the present invention.

[0123] In some possible embodiments of the present invention, the electronic device may include multiple processors 501 and multiple storage devices 502. The program executing the method for determining air conditioner fan compatibility in the above-described method embodiments can be divided into multiple subroutines. Each subroutine can be loaded and run by a processor 501 to execute different steps of the method for determining air conditioner fan compatibility in the above-described method embodiments. Specifically, each subroutine can be stored in different storage devices 502, and each processor 501 can be configured to execute programs in one or more storage devices 502 to jointly implement the method for determining air conditioner fan compatibility in the above-described method embodiments. That is, each processor 501 executes different steps of the method for determining air conditioner fan compatibility in the above-described method embodiments to jointly implement the method for determining air conditioner fan compatibility in the above-described method embodiments.

[0124] The aforementioned multiple processors 501 can be processors deployed on the same device. For example, the aforementioned electronic device can be a high-performance device composed of multiple processors, and the aforementioned multiple processors 501 can be processors configured on that high-performance device. Alternatively, the aforementioned multiple processors 501 can also be processors deployed on different devices. For example, the aforementioned electronic device can be a server cluster, and the aforementioned multiple processors 501 can be processors on different servers within the server cluster.

[0125] Furthermore, the present invention also provides an air conditioner. In one embodiment of an air conditioner according to the present invention, the air conditioner may include an air conditioner body and the electronic equipment described in the above-described electronic equipment embodiments.

[0126] Furthermore, the present invention also provides a computer-readable storage medium. In one embodiment of the computer-readable storage medium according to the present invention, the computer-readable storage medium can be configured to store a program for executing the method of determining air conditioner fan compatibility in the above-described method embodiments. This program can be loaded and run by a processor to implement the above-described method of determining air conditioner fan compatibility. For ease of explanation, only the parts related to the embodiments of the present invention are shown; for specific technical details not disclosed, please refer to the method section of the embodiments of the present invention. The computer-readable storage medium can be a storage device comprising various electronic devices. Optionally, in the embodiments of the present invention, the computer-readable storage medium is a non-transitory computer-readable storage medium.

[0127] The technical solution of the present invention has been described above with reference to one embodiment shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions resulting from such changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A method for determining the compatibility of an air conditioner fan, characterized in that, The method includes: S1. Obtain the motor parameters of the current fan; the motor parameters of the current fan include line inductance, phase resistance and back EMF; S2. Drive the fan to operate based on the motor parameters; S3. Obtain the fan operating parameters; the fan operating parameters include phase current, power module IPM temperature and DC bus voltage; S4. Determine whether the fan is suitable based on the fan operating parameters; The process of obtaining the motor parameters of the current wind turbine includes: Receive the fan adaptation command; obtain the line-to-line inductance, the phase-to-phase resistance, and the back EMF based on the fan adaptation command; The step of determining whether the fan is suitable based on the fan operating parameters includes: Determine whether the phase current, the IPM temperature, and the DC bus voltage all meet the corresponding preset parameter thresholds; determine whether the fan is compatible based on the determination results.

2. The method for determining air conditioner fan compatibility according to claim 1, characterized in that, The determination of whether the fan is compatible based on the judgment result includes: If the phase current, the IPM temperature, and the DC bus voltage all meet the corresponding preset parameter thresholds, then the fan is determined to be compatible. If at least one of the phase current, the IPM temperature, and the DC bus voltage does not meet the corresponding preset parameter threshold, then the fan is determined to be unsuitable, or steps S1-S4 are repeated.

3. The method for determining air conditioner fan compatibility according to claim 2, characterized in that, After repeating steps S1-S4, the method further includes: If the repeated execution of steps S1-S4 reaches a preset number of times, and at least one of the phase current, the IPM temperature, and the DC bus voltage still does not meet the corresponding preset parameter threshold, then the fan is determined to be unsuitable.

4. The method for determining air conditioner fan compatibility according to claim 1, characterized in that, The acquisition of wind turbine operating parameters includes: When the fan is driven to operate within the preset speed range corresponding to the air conditioner based on the motor parameters, the fan operating parameters are obtained.

5. The method for determining air conditioner fan compatibility according to claim 1, characterized in that, The method further includes: If the fan is determined to be incompatible based on the fan operating parameters, a fault warning will be issued.

6. An electronic device comprising a processor and a storage device, said storage device being adapted to store a plurality of program codes, characterized in that, The program code is adapted to be loaded and run by the processor to perform the method for determining air conditioner fan compatibility as described in any one of claims 1 to 5.

7. An air conditioner, characterized in that, The air conditioner includes an air conditioner body and the electronic device as described in claim 6.

8. A computer-readable storage medium storing a plurality of program codes, characterized in that, The program code is adapted to be loaded and run by a processor to perform the method for determining air conditioner fan compatibility as described in any one of claims 1 to 5.

Citation Information

Patent Citations

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