CN115451625A - Variable frequency compressor, working frequency control method and device thereof and computer equipment - Google Patents

Variable frequency compressor, working frequency control method and device thereof and computer equipment Download PDF

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Publication number
CN115451625A
CN115451625A CN202211157853.7A CN202211157853A CN115451625A CN 115451625 A CN115451625 A CN 115451625A CN 202211157853 A CN202211157853 A CN 202211157853A CN 115451625 A CN115451625 A CN 115451625A
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CN
China
Prior art keywords
frequency
frequency control
point set
control point
compressor
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Pending
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CN202211157853.7A
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Chinese (zh)
Inventor
甘鑫濠
明开云
董亚飞
张学雨
劳加鑫
冯承勇
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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Priority to CN202211157853.7A priority Critical patent/CN115451625A/en
Publication of CN115451625A publication Critical patent/CN115451625A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F25B49/022—Compressor control arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2500/00—Problems to be solved
    • F25B2500/12—Sound
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2500/00—Problems to be solved
    • F25B2500/13—Vibrations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/02—Compressor control
    • F25B2600/021—Inverters therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Abstract

The application relates to a variable frequency compressor, a working frequency control method and device thereof, computer equipment, a storage medium and a computer program product. The method comprises the following steps: acquiring the current sound intensity of the current operating frequency of the compressor and a frequency control point set; if the current sound intensity is greater than the minimum sound intensity in the frequency control point set, replacing the running frequency corresponding to the minimum sound intensity in the frequency control point set with the current running frequency corresponding to the current sound intensity; and outputting a frequency control instruction according to the updated frequency control point set. According to the whole scheme, the operation frequency n higher than the sound intensity in the operation period of the compressor is continuously obtained and updated, and then when the operation frequency in the operation process of the compressor is equal to the operation frequency in the frequency control point set, the operation frequency in the frequency control point set is shielded, so that the frequency points which can generate resonance are eliminated, and noise abnormal sound caused by the resonance is reduced.

Description

Variable frequency compressor, working frequency control method and device thereof and computer equipment
Technical Field
The present application relates to the field of inverter compressors, and in particular, to an inverter compressor, a method and an apparatus for controlling an operating frequency of the inverter compressor, a computer device, a storage medium, and a computer program product.
Background
A compressor is a driven fluid machine that raises low-pressure gas into high-pressure gas, and is a heart of a refrigeration system. The refrigerating cycle is powered by sucking low-temperature and low-pressure refrigerant gas from the air suction pipe, driving the piston to compress the refrigerant gas through the operation of the motor, and discharging high-temperature and high-pressure refrigerant gas to the exhaust pipe. In order to make the operation state more stable, the inverter compressor is produced. For a compressor with constant relative rotating speed, the rotating speed of the variable frequency compressor is continuously adjusted within a certain range through a control mode or means, the compressor capable of continuously changing output energy can be used for refrigerating in variable frequency air conditioners, refrigerators, cold storages and variable frequency condensing units.
Taking a frequency conversion condensing unit as an example, the frequency conversion condensing unit is a refrigeration device consisting of one or more frequency conversion compressors, a condenser and necessary auxiliary equipment (without an evaporator and a throttling device). For the outdoor unit of the variable-frequency condensing unit, the working frequency of the compressor is not fixed, and the span of about 100Hz is usually formed from the lowest frequency to the highest frequency. In the actual use process, the phenomenon that the compressor resonates with the system structure of the unit when the compressor runs to certain frequency points often occurs, and therefore large noise abnormal sound is emitted.
The current main practice is to determine a frequency point of a compressor, which is easy to resonate with a unit, by an experimental method after a system structure of the unit is determined, and then shield the frequency point by a software algorithm so that the compressor does not run at the frequency.
The conventional method can well reduce the possibility of noise abnormal sound caused by structural resonance of the unit, but dust accumulation or rust occurs after the unit is used for a long time, or the system structure is slightly changed due to the conditions of collision and the like in the transportation and installation processes, so that the noise abnormal sound is generated. Therefore, a control method capable of accurately shielding the resonance point is needed.
Disclosure of Invention
Based on the method, the variable frequency compressor, the working frequency control method and the device thereof, the computer equipment, the computer readable storage medium and the computer program product are provided for accurately shielding the variable frequency resonance point aiming at the problem that the running frequency of the compressor can cause resonance and generate noise.
In a first aspect, the present application provides a method for controlling an operating frequency of an inverter compressor. The method comprises the following steps:
acquiring the current sound intensity of the current operating frequency of the compressor and a frequency control point set; the frequency control point set comprises the operation frequency n times before the sound intensity during the operation of the compressor;
if the current sound intensity is greater than the minimum sound intensity in the frequency control point set, replacing the running frequency corresponding to the minimum sound intensity in the frequency control point set with the current running frequency corresponding to the current sound intensity;
and outputting a frequency control instruction according to the updated frequency control point set, wherein the frequency control instruction is used for controlling the running frequency of the compressor in the running process to be equal to the running frequency in the updated frequency control point set, and skipping the running frequency in the updated frequency control point set.
In one embodiment, outputting the frequency control instruction according to the updated set of frequency control points comprises: and outputting a frequency control instruction according to the updated frequency control point set and the current working state of the compressor.
In one embodiment, the current operating condition of the compressor comprises a compressor down-conversion operating condition; the frequency control command comprises a first frequency control command; outputting a frequency control command according to the updated frequency control point set and the current working state of the compressor, wherein the frequency control command comprises: and outputting a first frequency control instruction according to the updated frequency control point set and the compressor frequency reduction working state, wherein the first frequency control instruction is used for reducing the running frequency in the frequency control point set by a preset frequency when the running frequency in the compressor frequency reduction process is equal to the running frequency in the updated frequency control point set so as to skip the running frequency in the updated frequency control point set.
In one embodiment, the current operating state of the compressor comprises an up-conversion operating state of the compressor; the frequency control command comprises a second frequency control command; outputting a frequency control command according to the updated frequency control point set and the current working state of the compressor, wherein the frequency control command comprises: and outputting a second frequency control instruction according to the updated frequency control point set and the frequency boosting working state of the compressor, wherein the second frequency control instruction is used for increasing a preset frequency at the operating frequency in the frequency control point set when the operating frequency is equal to that in the updated frequency control point set in the frequency boosting process of the compressor so as to skip the operating frequency in the updated frequency control point set.
In one embodiment, if the current sound intensity is greater than the minimum sound intensity in the set of frequency control points, replacing the operating frequency corresponding to the minimum sound intensity in the set of frequency control points with the current operating frequency corresponding to the current sound intensity includes: acquiring the number of operating frequencies in a frequency control point set; when the number of the operating frequencies in the frequency control point set is smaller than the preset frequency control number, adding the current operating frequency corresponding to the current sound intensity into the frequency control point set; when the number of the operating frequencies in the frequency control point set is equal to the preset frequency control number, if the current sound intensity is greater than the minimum sound intensity in the frequency control point set, replacing the operating frequency corresponding to the minimum sound intensity in the frequency control point set with the current operating frequency corresponding to the current sound intensity.
In one embodiment, the method further includes: and when the running time of the compressor reaches the preset time length, emptying the latest frequency control point set.
In one embodiment, the method further includes: when the compressor stops running, the latest set of frequency control points is emptied.
In a second aspect, the application further provides a device for controlling the working frequency of the inverter compressor. The device comprises:
the acquisition module is used for acquiring the current sound intensity of the current operating frequency of the compressor and the frequency control point set; the frequency control point set comprises the operation frequency n times before the sound intensity during the operation of the compressor;
the updating module is used for replacing the running frequency corresponding to the minimum sound intensity in the frequency control point set with the current running frequency corresponding to the current sound intensity if the current sound intensity is larger than the minimum sound intensity in the frequency control point set;
and the control module is used for outputting a frequency control instruction according to the updated frequency control point set, wherein the frequency control instruction is used for controlling the running frequency in the running process of the compressor to be equal to the running frequency in the updated frequency control point set, and skipping the running frequency in the updated frequency control point set.
In a third aspect, the present application further provides an inverter compressor, which includes a compressor body and a controller. The controller comprises a memory storing a computer program and a processor implementing the following steps when executing the computer program:
acquiring the current sound intensity of the current operating frequency of the compressor and a frequency control point set; the frequency control point set comprises the operation frequency n times before the sound intensity during the operation of the compressor;
if the current sound intensity is greater than the minimum sound intensity in the frequency control point set, replacing the running frequency corresponding to the minimum sound intensity in the frequency control point set with the current running frequency corresponding to the current sound intensity;
and outputting a frequency control instruction according to the updated frequency control point set, wherein the frequency control instruction is used for controlling the running frequency in the running process of the compressor to be equal to the running frequency in the updated frequency control point set, and skipping the running frequency in the updated frequency control point set.
In a fourth aspect, the application also provides a computer device. The computer device comprises a memory storing a computer program and a processor implementing the following steps when executing the computer program:
acquiring the current sound intensity of the current operating frequency of the compressor and a frequency control point set; the frequency control point set comprises the operation frequency n times before the sound intensity during the operation of the compressor;
if the current sound intensity is larger than the minimum sound intensity in the frequency control point set, replacing the operating frequency corresponding to the minimum sound intensity in the frequency control point set with the current operating frequency corresponding to the current sound intensity;
and outputting a frequency control instruction according to the updated frequency control point set, wherein the frequency control instruction is used for controlling the running frequency of the compressor in the running process to be equal to the running frequency in the updated frequency control point set, and skipping the running frequency in the updated frequency control point set.
In a fifth aspect, the present application further provides a computer-readable storage medium. The computer-readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of:
acquiring the current sound intensity of the current operating frequency of the compressor and a frequency control point set; the frequency control point set comprises the operation frequency n times before the sound intensity during the operation of the compressor;
if the current sound intensity is larger than the minimum sound intensity in the frequency control point set, replacing the operating frequency corresponding to the minimum sound intensity in the frequency control point set with the current operating frequency corresponding to the current sound intensity;
and outputting a frequency control instruction according to the updated frequency control point set, wherein the frequency control instruction is used for controlling the running frequency in the running process of the compressor to be equal to the running frequency in the updated frequency control point set, and skipping the running frequency in the updated frequency control point set.
In a sixth aspect, the present application further provides a computer program product. The computer program product comprising a computer program which when executed by a processor performs the steps of:
acquiring the current sound intensity of the current operating frequency of the compressor and a frequency control point set; the frequency control point set comprises the operation frequency n times before the sound intensity during the operation of the compressor;
if the current sound intensity is larger than the minimum sound intensity in the frequency control point set, replacing the operating frequency corresponding to the minimum sound intensity in the frequency control point set with the current operating frequency corresponding to the current sound intensity;
and outputting a frequency control instruction according to the updated frequency control point set, wherein the frequency control instruction is used for controlling the running frequency of the compressor in the running process to be equal to the running frequency in the updated frequency control point set, and skipping the running frequency in the updated frequency control point set.
The variable frequency compressor and the working frequency control method, device, computer equipment, storage medium and computer program product thereof obtain the current sound intensity and frequency control point set of the current operating frequency of the compressor; the frequency control point set comprises the operation frequency n times higher than the sound intensity during the operation of the compressor; if the current sound intensity is larger than the minimum sound intensity in the frequency control point set, replacing the operating frequency corresponding to the minimum sound intensity in the frequency control point set with the current operating frequency corresponding to the current sound intensity; and outputting a frequency control instruction according to the updated frequency control point set, wherein the frequency control instruction is used for controlling the running frequency of the compressor in the running process to be equal to the running frequency in the updated frequency control point set, and skipping the running frequency in the updated frequency control point set. In the whole scheme, the operation frequency n before the sound intensity is continuously acquired and updated during the operation of the compressor, and then when the operation frequency is equal to the operation frequency in the frequency control point set in the operation process of the compressor, the operation frequency in the frequency control point set is shielded, so that the frequency points which can generate resonance are eliminated, and noise abnormal sound caused by the resonance is reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the description of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the description below are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic flow chart of a method for controlling the operating frequency of an inverter compressor according to an embodiment;
FIG. 2 is a schematic flow chart of a method for controlling the operating frequency of an inverter compressor according to another embodiment;
FIG. 3 is a block diagram of an exemplary embodiment of an apparatus for controlling an operating frequency of an inverter compressor;
FIG. 4 is a diagram of the internal structure of a computer device in one embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In one embodiment, as shown in fig. 1, there is provided an operation frequency control method for an inverter compressor, which is described by taking the method as an example for a compressor controller, and includes the following steps:
step 102, obtaining the current sound intensity of the current operation frequency of the compressor and a frequency control point set.
The frequency control point set stores the operation frequency n times higher than the sound intensity in the current compressor operation period, the frequency control point set stores the operation frequency and the corresponding sound intensity, and the operation frequency and the corresponding sound intensity are stored in a correlated mode. The sound intensity refers to the sound intensity generated when the compressor works at the current operating frequency, a sound sensor can be adopted to collect the sound intensity of the compressor at the current operating frequency, and a frequency control point set is obtained by continuously collecting and updating the operating frequency n times before the sound intensity during the operation of the compressor. n is a positive integer, which can be set according to the working state of the compressor, for example, n can be 10, and can also be 15, and the embodiment is not limited herein.
Specifically, after the inverter compressor is started, the compressor controller obtains a target frequency point of the inverter compressor, and performs PID (Proportional, integral, and Derivative) regulation control to adjust the operating frequency of the compressor to the target frequency point. A sound sensor is arranged in the variable-frequency compressor, and is used for collecting the current sound intensity of the current operating frequency of the compressor and transmitting the current sound intensity of the current operating frequency of the compressor to the compressor controller. The compressor controller can send the sound collection instruction to the sound sensor, and the sound sensor receives the sound collection instruction and collects the current sound intensity of the current working frequency of the variable frequency compressor according to the sound collection instruction. The sound sensor can also collect the current sound intensity of the current working frequency of the variable frequency compressor at regular time and send the current sound intensity of the current working frequency of the variable frequency compressor to the compressor controller. The compressor controller acquires the current sound intensity of the current operating frequency of the compressor collected by the sound sensor and a locally recorded frequency control point set during the current operating period of the compressor.
In an implementation, the sound sensor may be implemented using a sound-sensitive electret condenser microphone. The condenser electret microphone is arranged in the frequency conversion compressor, the compressor controller can send a sound collection instruction to the condenser electret microphone, the condenser electret microphone receives the sound collection instruction, and the current sound intensity of the current working frequency of the frequency conversion compressor is collected according to the sound collection instruction. The condenser electret microphone can also collect the current sound intensity of the current working frequency of the variable frequency compressor at regular time, and send the current sound intensity of the current working frequency of the variable frequency compressor to the compressor controller. The compressor controller obtains the current sound intensity of the current operating frequency of the compressor collected by the condenser electret microphone and the locally recorded frequency control point set. Further, the sound sensor can also adopt a piezoelectric ceramic or moving coil type sound sensor to collect the volume intensity.
In this embodiment, the current sound intensity corresponding to the current operating frequency of the inverter compressor is collected through the sound sensor, so that the cost is low, and the operating frequency n higher than the sound intensity during the operation of the compressor can be accurately obtained, thereby facilitating the accurate shielding of the frequency point at which the inverter compressor resonates with a unit (such as an inverter condensation unit) which operates together with the inverter compressor.
And 104, if the current sound intensity is greater than the minimum sound intensity in the frequency control point set, replacing the operating frequency corresponding to the minimum sound intensity in the frequency control point set with the current operating frequency corresponding to the current sound intensity.
Specifically, when the compressor controller acquires the current sound intensity of the current operating frequency and the frequency control point set, the magnitude of the current sound intensity of the current operating frequency is compared with the magnitude of the sound intensity of the operating frequency in the frequency control point set, and if the current sound intensity is judged to be greater than the minimum sound intensity in the frequency control point set, the operating frequency corresponding to the minimum sound intensity in the frequency control point set is replaced with the current operating frequency corresponding to the current sound intensity according to a tail elimination mechanism, so that an updated frequency control point set is obtained. If the current sound intensity is judged to be smaller than the minimum sound intensity in the frequency control point set, the current sound intensity is smaller than the sound intensity of all the operating frequencies in the frequency control point set, and the noise generated by the current sound intensity is smaller than the noise generated by the sound intensity of the operating frequencies in the frequency control point set, so that the current operating frequency of the current sound intensity is not required to be stored in the frequency control point set, the frequency control point set does not need to be updated, and n frequency points with the maximum noise intensity of the unit can be guaranteed to be always caused by the operating frequency with the maximum sound intensity before the sound intensity in the frequency control point set.
And 106, outputting a frequency control instruction according to the updated frequency control point set.
And the frequency control instruction is used for controlling the running frequency in the running process of the compressor to be equal to the running frequency in the frequency control point set, and skipping the running frequency in the updated frequency control point set.
Specifically, the compressor controller outputs a frequency control instruction according to the operating frequency in the updated frequency control point set, when the difference between the current operating frequency of the compressor and any one operating frequency in the updated frequency control point set is smaller than or equal to a preset control threshold, and when the operating frequency in the process of controlling the operation of the compressor is equal to the operating frequency in the frequency control point set, skips over the operating frequency in the updated frequency control point set, and the compressor does not operate at n operating frequencies in the updated frequency control point set during the operation of the compressor this time. For example, there is a point with an operating frequency of 3 in the updated frequency control point set, the preset control threshold is 1, and when the operating frequency of the compressor is 2, the difference between the current operating frequency and the point with the operating frequency of 2 in the frequency control point set is equal to the preset control threshold 1, a frequency control command is output to skip 3 frequency control points.
In the method for controlling the working frequency of the variable frequency compressor, the current sound intensity and the frequency control point set of the current operating frequency of the compressor are obtained; the frequency control point set comprises the operation frequency n times higher than the sound intensity during the operation of the compressor; if the current sound intensity is greater than the minimum sound intensity in the frequency control point set, replacing the running frequency corresponding to the minimum sound intensity in the frequency control point set with the current running frequency corresponding to the current sound intensity; and outputting a frequency control instruction according to the frequency control point set, wherein the frequency control instruction is used for skipping the running frequency in the updated frequency control point set when the running frequency in the running process of the compressor is equal to the running frequency in the frequency control point set. According to the whole scheme, the operation frequency n higher than the sound intensity in the operation period of the compressor is continuously obtained and updated, and then when the operation frequency in the operation process of the compressor is equal to the operation frequency in the frequency control point set, the operation frequency in the frequency control point set is shielded, so that the frequency points which can generate resonance are eliminated, and noise abnormal sound caused by the resonance is reduced.
In an alternative embodiment, outputting the frequency control instruction according to the set of frequency control points comprises: and outputting a frequency control instruction according to the updated frequency control point set and the current working state of the compressor.
The frequency control instruction is used for controlling the compressor to skip the frequency control point during the current operation period, the frequency control instruction may include frequency control instructions of n frequency control points, the frequency control instruction may also be a frequency control instruction of 1 frequency control point, and the frequency control instruction is continuously generated according to the current operation frequency of the compressor and the updated frequency control point set. The current operating state of the compressor refers to a current PID-regulated state of the compressor.
Specifically, the compressor controller generates a control command including n frequency control points according to the frequency control points in the updated frequency control point set and the current PID regulation state of the compressor, and outputs the frequency control command including n frequency control points. Or the compressor controller outputs a frequency control instruction when the difference value between the current working frequency of the compressor and any one operating frequency in the updated frequency control point set is smaller than or equal to a preset control threshold value according to the current operating frequency of the compressor, the frequency control points in the updated frequency control point set and the current PID adjustment state of the compressor.
In an alternative embodiment, outputting the frequency control command according to the frequency control point set and the current working state of the compressor comprises: and outputting a first frequency control instruction according to the frequency control point set and the compressor frequency reduction working state.
The current working state of the compressor comprises a compressor frequency reduction working state; the frequency control instructions comprise a first frequency control instruction, and the first frequency control instruction is used for reducing the running frequency in the frequency control point set by a preset frequency when the running frequency is equal to the running frequency in the frequency control point set in the compressor frequency reduction process so as to skip the running frequency in the updated frequency control point set. The preset frequency may be set according to a rate of change of the compressor frequency.
Specifically, the compressor controller, according to the frequency control point in the updated frequency control point set and the current down-conversion working state of the compressor by PID adjustment, reduces the preset frequency at the operating frequency (or the current operating frequency) in the frequency control point set when the current operating frequency is equal to the operating frequency in the frequency control point set in the down-conversion process of the compressor, generates a frequency control instruction of the frequency control point, and outputs the frequency control instruction.
In this embodiment, during the down-conversion operation of the compressor, the frequency control instruction is generated continuously according to the current operation frequency of the compressor and the operation frequency in the frequency control point set updated in real time, so as to reduce the resonance with the unit during the down-conversion operation and reduce the noise caused by the resonance.
In an alternative embodiment, outputting the frequency control command according to the frequency control point set and the current working state of the compressor comprises: and outputting a second frequency control instruction according to the frequency control point set and the frequency boosting working state of the compressor.
The current working state of the compressor comprises a frequency-increasing working state regulated by the current PID of the compressor; the frequency control instructions comprise second frequency control instructions, and the second frequency control instructions are used for increasing preset frequencies at the operating frequencies in the frequency control point set when the operating frequencies in the frequency increasing process of the compressor are equal to the operating frequencies in the frequency control point set so as to skip the operating frequencies in the updated frequency control point set. The preset frequency may be set according to a rate of change of the compressor frequency.
Specifically, according to the frequency control point in the updated frequency control point set and the current PID-adjusted frequency-increasing working state of the compressor, when the current operating frequency is equal to the operating frequency in the frequency control point set in the compressor frequency-increasing process, the compressor controller increases the preset frequency at the operating frequency (or the current operating frequency) in the frequency control point set, generates a frequency control command of the frequency control point, and outputs the frequency control command.
In this embodiment, during the up-conversion operation of the compressor, the frequency control instruction is generated continuously according to the current operation frequency of the compressor and the operation frequency in the frequency control point set updated in real time, so as to reduce the resonance with the unit during the up-conversion operation and reduce the noise generated by the resonance.
In an optional embodiment, if the current sound intensity is greater than the minimum sound intensity in the set of frequency control points, replacing the operating frequency corresponding to the minimum sound intensity in the set of frequency control points with the current operating frequency corresponding to the current sound intensity includes: acquiring the number of operating frequencies in a frequency control point set; when the number of the operating frequencies in the frequency control point set is smaller than the preset frequency control number, adding the current operating frequency corresponding to the current sound intensity into the frequency control point set; when the number of the operating frequencies in the frequency control point set is greater than or equal to the preset frequency control number, if the current sound intensity is greater than the minimum sound intensity in the frequency control point set, replacing the operating frequency corresponding to the minimum sound intensity in the frequency control point set with the current operating frequency corresponding to the current sound intensity.
Specifically, when the compressor controller acquires the set of frequency control points, it first determines whether the number of frequency control points in the set of frequency control points reaches a preset frequency control number, that is, n. The compressor controller obtains the number of the operating frequencies in the frequency control point set, when the number of the operating frequencies in the frequency control point set is judged to be smaller than the preset frequency control number, the number of the operating frequencies in the frequency control point set is less than n, the operating frequencies n before the sound intensity need to be collected, the current operating frequency corresponding to the current sound intensity is added into the frequency control point set, and the number of the frequency control points in the frequency control point set is increased by 1. And when the current sound intensity is judged to be greater than the minimum sound intensity in the frequency control point set, replacing the operating frequency corresponding to the minimum sound intensity in the frequency control point set with the current operating frequency corresponding to the current sound intensity to obtain an updated frequency control point set.
In this embodiment, whether the number in the frequency control point set reaches the preset frequency control number or not can be judged, so that the operation frequency n higher than the sound intensity in the operation period of the compressor can be guaranteed, the operation frequency n higher than the sound intensity in the operation period can be shielded in the operation period of the compressor, noise abnormal sound generated by resonance can be reduced, the quality of the variable frequency compressor and a unit operated together with the variable frequency compressor can be improved, and customer experience can be improved.
In an optional embodiment, the method further comprises: and when the running time of the compressor reaches the preset time length, emptying the latest frequency control point set.
Specifically, due to the fact that a frequency conversion compressor and a certain frequency point of a fan which operates together with the frequency conversion compressor cause the conditions of high noise generated by structural resonance of a unit, high noise generated by knocking a unit shell by the outside and the like, the system can be mistakenly judged as the noise generated by the structural resonance caused by the frequency point of the compressor. In order to reduce the error influence caused by the factors, a strategy of automatically acquiring the frequency shielding points of the compressor at intervals is adopted.
After the compressor is started, the compressor controller records the starting time of the compressor, judges whether the implementation duration of the compressor reaches the preset duration or not during the running period of the compressor, and empties the latest frequency control point set when the implementation duration of the compressor reaches the preset duration so as to obtain the frequency control point set again and improve the accuracy of the shielding of the resonance point.
In an optional embodiment, the method further comprises: when the compressor stops running, the latest set of frequency control points is emptied.
Specifically, when the compressor controller detects that the compressor stops running, the latest locally recorded frequency control point set is emptied, so that when the compressor is started next time, the frequency control point set is collected again, and the accuracy of resonance point shielding is improved.
In order to easily understand the technical solution provided by the embodiment of the present application, as shown in fig. 2, a method for controlling an operating frequency of an inverter compressor provided by the embodiment of the present application is briefly described with a complete process for controlling an operating frequency of an inverter compressor:
(1) And acquiring the current sound intensity of the current running frequency of the compressor and the frequency control point set.
(2) The number of operating frequencies in the set of frequency control points is obtained.
(3) And when the number of the operating frequencies in the frequency control point set is less than the preset frequency control number, adding the current operating frequency corresponding to the current sound intensity into the frequency control point set.
(4) When the number of the operating frequencies in the frequency control point set is equal to the preset frequency control number, if the current sound intensity is greater than the minimum sound intensity in the frequency control point set, replacing the operating frequency corresponding to the minimum sound intensity in the frequency control point set with the current operating frequency corresponding to the current sound intensity.
(5) And outputting a first frequency control instruction according to the updated frequency control point set and the compressor frequency reduction working state.
(6) And outputting a second frequency control instruction according to the updated frequency control point set and the ascending frequency working state of the compressor.
(7) And judging whether the running time of the compressor reaches a preset time length or not, and emptying the latest frequency control point set when the running time of the compressor reaches the preset time length.
(8) And judging whether the compressor stops running or not, and emptying the latest frequency control point set when the compressor stops running.
It should be understood that, although the steps in the flowcharts related to the embodiments as described above are sequentially displayed as indicated by arrows, the steps are not necessarily performed sequentially as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a part of the steps in the flowcharts related to the embodiments described above may include multiple steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, and the execution order of the steps or stages is not necessarily sequential, but may be performed alternately or alternately with other steps or at least a part of the steps or stages in other steps.
Based on the same inventive concept, the embodiment of the application also provides an operating frequency control device of the inverter compressor, which is used for realizing the operating frequency control method of the inverter compressor. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the method, so the specific limitations in one or more embodiments of the device for controlling the operating frequency of the inverter compressor provided below can be referred to the limitations on the method for controlling the operating frequency of the inverter compressor, and are not described herein again.
In one embodiment, as shown in fig. 3, there is provided an operation frequency control apparatus of an inverter compressor, including: an acquisition module 302, an update module 304, and a control module 306, wherein:
an obtaining module 302, configured to obtain a current sound intensity of a current operating frequency of the compressor and a set of frequency control points; the set of frequency control points includes the operating frequency n times greater than the sound intensity during operation of the compressor.
The updating module 304 is configured to replace the operating frequency corresponding to the minimum sound intensity in the frequency control point set with the current operating frequency corresponding to the current sound intensity if the current sound intensity is greater than the minimum sound intensity in the frequency control point set.
And the control module 306 is configured to output a frequency control instruction according to the updated frequency control point set, where the frequency control instruction is used to skip the operating frequency in the updated frequency control point set when the operating frequency in the operating process of the compressor is equal to the operating frequency in the updated frequency control point set.
In one embodiment, the control module 306 is further configured to output a frequency control command according to the updated frequency control point set and the current operating state of the compressor.
In one embodiment, the current operating condition of the compressor comprises a compressor down-conversion operating condition; the frequency control command comprises a first frequency control command; the control module 306 is further configured to output a first frequency control instruction according to the updated frequency control point set and the compressor frequency reduction operating state, where the first frequency control instruction is used to reduce the operating frequency in the frequency control point set by a preset frequency when the operating frequency is equal to the operating frequency in the updated frequency control point set in the compressor frequency reduction process, so as to skip the operating frequency in the updated frequency control point set.
In one embodiment, the current operating state of the compressor comprises a compressor up-conversion operating state; the frequency control command comprises a second frequency control command; the control module 306 is further configured to output a second frequency control instruction according to the updated frequency control point set and the compressor up-conversion working state, where the second frequency control instruction is used to increase a preset frequency at the operating frequency in the frequency control point set when the operating frequency is equal to the operating frequency in the updated frequency control point set in the up-conversion process of the compressor, so as to skip the operating frequency in the updated frequency control point set.
In one embodiment, the updating module 304 is further configured to obtain the number of operating frequencies in the frequency control point set; when the number of the operating frequencies in the frequency control point set is smaller than the preset frequency control number, adding the current operating frequency corresponding to the current sound intensity into the frequency control point set; when the number of the operating frequencies in the frequency control point set is equal to the preset frequency control number, if the current sound intensity is greater than the minimum sound intensity in the frequency control point set, replacing the operating frequency corresponding to the minimum sound intensity in the frequency control point set with the current operating frequency corresponding to the current sound intensity.
In one embodiment, the update module 304 is further configured to empty the latest set of frequency control points when the compressor run time reaches a preset duration.
In one embodiment, the update module 304 is further configured to empty the latest set of frequency control points when the compressor is not running.
All or part of the modules in the device for controlling the working frequency of the inverter compressor can be realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent of a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
In one embodiment, a computer device is provided, which may be a terminal, and its internal structure diagram may be as shown in fig. 4. The computer device includes a processor, a memory, a communication interface, a display screen, and an input device connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The communication interface of the computer device is used for carrying out wired or wireless communication with an external terminal, and the wireless communication can be realized through WIFI, a mobile cellular network, NFC (near field communication) or other technologies. The computer program is executed by a processor to implement a method of controlling the operating frequency of an inverter compressor. The display screen of the computer equipment can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer equipment can be a touch layer covered on the display screen, a key, a track ball or a touch pad arranged on a shell of the computer equipment, an external keyboard, a touch pad or a mouse and the like.
It will be appreciated by those skilled in the art that the configuration shown in fig. 4 is a block diagram of only a portion of the configuration associated with the present application, and is not intended to limit the computing device to which the present application may be applied, and that a particular computing device may include more or fewer components than shown, or may combine certain components, or have a different arrangement of components.
In one embodiment, a computer apparatus, inverter compressor, is provided that includes a compressor body and a controller. The controller comprises a memory and a processor, the memory stores a computer program, and the processor realizes the following steps when executing the computer program:
acquiring the current sound intensity of the current operating frequency of the compressor and a frequency control point set; the frequency control point set comprises the operation frequency n times higher than the sound intensity during the operation of the compressor;
if the current sound intensity is greater than the minimum sound intensity in the frequency control point set, replacing the running frequency corresponding to the minimum sound intensity in the frequency control point set with the current running frequency corresponding to the current sound intensity;
and outputting a frequency control instruction according to the updated frequency control point set, wherein the frequency control instruction is used for controlling the running frequency of the compressor in the running process to be equal to the running frequency in the updated frequency control point set, and skipping the running frequency in the updated frequency control point set.
In one embodiment, the processor when executing the computer program further performs the steps of: outputting a frequency control command according to the updated set of frequency control points comprises: and outputting a frequency control instruction according to the updated frequency control point set and the current working state of the compressor.
In one embodiment, the processor, when executing the computer program, further performs the steps of: the current working state of the compressor comprises a compressor frequency reduction working state; the frequency control command comprises a first frequency control command; according to the updated frequency control point set and the current working state of the compressor, outputting a frequency control instruction comprises: and outputting a first frequency control instruction according to the updated frequency control point set and the compressor frequency reduction working state, wherein the first frequency control instruction is used for reducing the running frequency in the frequency control point set by a preset frequency when the running frequency in the compressor frequency reduction process is equal to the running frequency in the updated frequency control point set so as to skip the running frequency in the updated frequency control point set.
In one embodiment, the processor, when executing the computer program, further performs the steps of: the current working state of the compressor comprises a compressor frequency increasing working state; the frequency control command comprises a second frequency control command; outputting a frequency control command according to the updated frequency control point set and the current working state of the compressor, wherein the frequency control command comprises: and outputting a second frequency control instruction according to the updated frequency control point set and the frequency boosting working state of the compressor, wherein the second frequency control instruction is used for increasing a preset frequency at the operating frequency in the frequency control point set when the operating frequency is equal to that in the updated frequency control point set in the frequency boosting process of the compressor so as to skip the operating frequency in the updated frequency control point set.
In one embodiment, the processor when executing the computer program further performs the steps of: if the current sound intensity is greater than the minimum sound intensity in the frequency control point set, replacing the operating frequency corresponding to the minimum sound intensity in the frequency control point set with the current operating frequency corresponding to the current sound intensity, including: acquiring the number of operating frequencies in a frequency control point set; when the number of the operating frequencies in the frequency control point set is smaller than the preset frequency control number, adding the current operating frequency corresponding to the current sound intensity into the frequency control point set; when the number of the operating frequencies in the frequency control point set is equal to the preset frequency control number, if the current sound intensity is greater than the minimum sound intensity in the frequency control point set, replacing the operating frequency corresponding to the minimum sound intensity in the frequency control point set with the current operating frequency corresponding to the current sound intensity.
In one embodiment, the processor, when executing the computer program, further performs the steps of: and when the running time of the compressor reaches the preset time length, emptying the latest frequency control point set.
In one embodiment, the processor, when executing the computer program, further performs the steps of: when the compressor stops running, the latest set of frequency control points is emptied.
In one embodiment, a computer device is provided, comprising a memory and a processor, the memory having a computer program stored therein, the processor implementing the following steps when executing the computer program:
acquiring the current sound intensity of the current operating frequency of the compressor and a frequency control point set; the frequency control point set comprises the operation frequency n times before the sound intensity during the operation of the compressor;
if the current sound intensity is greater than the minimum sound intensity in the frequency control point set, replacing the running frequency corresponding to the minimum sound intensity in the frequency control point set with the current running frequency corresponding to the current sound intensity;
and outputting a frequency control instruction according to the updated frequency control point set, wherein the frequency control instruction is used for controlling the running frequency in the running process of the compressor to be equal to the running frequency in the updated frequency control point set, and skipping the running frequency in the updated frequency control point set.
In one embodiment, the processor, when executing the computer program, further performs the steps of: outputting a frequency control command according to the updated set of frequency control points comprises: and outputting a frequency control instruction according to the updated frequency control point set and the current working state of the compressor.
In one embodiment, the processor when executing the computer program further performs the steps of: the current working state of the compressor comprises a compressor frequency reduction working state; the frequency control command comprises a first frequency control command; outputting a frequency control command according to the updated frequency control point set and the current working state of the compressor, wherein the frequency control command comprises: and outputting a first frequency control instruction according to the updated frequency control point set and the compressor frequency reduction working state, wherein the first frequency control instruction is used for reducing the running frequency in the frequency control point set by a preset frequency when the running frequency in the compressor frequency reduction process is equal to the running frequency in the updated frequency control point set so as to skip the running frequency in the updated frequency control point set.
In one embodiment, the processor, when executing the computer program, further performs the steps of: the current working state of the compressor comprises a compressor frequency increasing working state; the frequency control command comprises a second frequency control command; according to the updated frequency control point set and the current working state of the compressor, outputting a frequency control instruction comprises: and outputting a second frequency control instruction according to the updated frequency control point set and the frequency boosting working state of the compressor, wherein the second frequency control instruction is used for increasing a preset frequency at the operating frequency in the frequency control point set when the operating frequency is equal to that in the updated frequency control point set in the frequency boosting process of the compressor so as to skip the operating frequency in the updated frequency control point set.
In one embodiment, the processor, when executing the computer program, further performs the steps of: if the current sound intensity is greater than the minimum sound intensity in the frequency control point set, replacing the operating frequency corresponding to the minimum sound intensity in the frequency control point set with the current operating frequency corresponding to the current sound intensity, including: acquiring the number of operating frequencies in a frequency control point set; when the number of the operating frequencies in the frequency control point set is smaller than the preset frequency control number, adding the current operating frequency corresponding to the current sound intensity into the frequency control point set; when the number of the operating frequencies in the frequency control point set is equal to the preset frequency control number, if the current sound intensity is greater than the minimum sound intensity in the frequency control point set, replacing the operating frequency corresponding to the minimum sound intensity in the frequency control point set with the current operating frequency corresponding to the current sound intensity.
In one embodiment, the processor, when executing the computer program, further performs the steps of: and when the running time of the compressor reaches the preset time length, emptying the latest frequency control point set.
In one embodiment, the processor, when executing the computer program, further performs the steps of: when the compressor stops running, the latest set of frequency control points is emptied.
In one embodiment, a computer-readable storage medium is provided, having a computer program stored thereon, which when executed by a processor, performs the steps of:
acquiring the current sound intensity of the current operating frequency of the compressor and a frequency control point set; the frequency control point set comprises the operation frequency n times higher than the sound intensity during the operation of the compressor;
if the current sound intensity is greater than the minimum sound intensity in the frequency control point set, replacing the running frequency corresponding to the minimum sound intensity in the frequency control point set with the current running frequency corresponding to the current sound intensity;
and outputting a frequency control instruction according to the updated frequency control point set, wherein the frequency control instruction is used for controlling the running frequency in the running process of the compressor to be equal to the running frequency in the updated frequency control point set, and skipping the running frequency in the updated frequency control point set.
In one embodiment, the computer program when executed by the processor further performs the steps of: outputting a frequency control command according to the updated set of frequency control points comprises: and outputting a frequency control instruction according to the updated frequency control point set and the current working state of the compressor.
In one embodiment, the computer program when executed by the processor further performs the steps of: the current working state of the compressor comprises a compressor frequency reduction working state; the frequency control command comprises a first frequency control command; outputting a frequency control command according to the updated frequency control point set and the current working state of the compressor, wherein the frequency control command comprises: and outputting a first frequency control instruction according to the updated frequency control point set and the compressor frequency reduction working state, wherein the first frequency control instruction is used for reducing the running frequency in the frequency control point set by a preset frequency to skip the running frequency in the updated frequency control point set when the running frequency in the compressor frequency reduction process is equal to the running frequency in the updated frequency control point set.
In one embodiment, the computer program when executed by the processor further performs the steps of: the current working state of the compressor comprises a compressor frequency-increasing working state; the frequency control command comprises a second frequency control command; outputting a frequency control command according to the updated frequency control point set and the current working state of the compressor, wherein the frequency control command comprises: and outputting a second frequency control instruction according to the updated frequency control point set and the frequency boosting working state of the compressor, wherein the second frequency control instruction is used for increasing a preset frequency at the operating frequency in the frequency control point set when the operating frequency is equal to that in the updated frequency control point set in the frequency boosting process of the compressor so as to skip the operating frequency in the updated frequency control point set.
In one embodiment, the computer program when executed by the processor further performs the steps of: if the current sound intensity is greater than the minimum sound intensity in the frequency control point set, replacing the operating frequency corresponding to the minimum sound intensity in the frequency control point set with the current operating frequency corresponding to the current sound intensity, including: acquiring the number of operating frequencies in a frequency control point set; when the number of the operating frequencies in the frequency control point set is smaller than the preset frequency control number, adding the current operating frequency corresponding to the current sound intensity into the frequency control point set; when the number of the operating frequencies in the frequency control point set is equal to the preset frequency control number, if the current sound intensity is greater than the minimum sound intensity in the frequency control point set, replacing the operating frequency corresponding to the minimum sound intensity in the frequency control point set with the current operating frequency corresponding to the current sound intensity.
In one embodiment, the computer program when executed by the processor further performs the steps of: and when the running time of the compressor reaches the preset time length, emptying the latest frequency control point set.
In one embodiment, the computer program when executed by the processor further performs the steps of: when the compressor stops running, the latest set of frequency control points is emptied.
In one embodiment, a computer program product is provided, comprising a computer program which when executed by a processor performs the steps of:
acquiring the current sound intensity of the current operating frequency of the compressor and a frequency control point set; the frequency control point set comprises the operation frequency n times higher than the sound intensity during the operation of the compressor;
if the current sound intensity is larger than the minimum sound intensity in the frequency control point set, replacing the operating frequency corresponding to the minimum sound intensity in the frequency control point set with the current operating frequency corresponding to the current sound intensity;
and outputting a frequency control instruction according to the updated frequency control point set, wherein the frequency control instruction is used for controlling the running frequency of the compressor in the running process to be equal to the running frequency in the updated frequency control point set, and skipping the running frequency in the updated frequency control point set.
In one embodiment, the computer program when executed by the processor further performs the steps of: outputting a frequency control command according to the updated set of frequency control points comprises: and outputting a frequency control instruction according to the updated frequency control point set and the current working state of the compressor.
In one embodiment, the computer program when executed by the processor further performs the steps of: the current working state of the compressor comprises a compressor frequency reduction working state; the frequency control command comprises a first frequency control command; outputting a frequency control command according to the updated frequency control point set and the current working state of the compressor, wherein the frequency control command comprises: and outputting a first frequency control instruction according to the updated frequency control point set and the compressor frequency reduction working state, wherein the first frequency control instruction is used for reducing the running frequency in the frequency control point set by a preset frequency to skip the running frequency in the updated frequency control point set when the running frequency in the compressor frequency reduction process is equal to the running frequency in the updated frequency control point set.
In one embodiment, the computer program when executed by the processor further performs the steps of: the current working state of the compressor comprises a compressor frequency-increasing working state; the frequency control command comprises a second frequency control command; outputting a frequency control command according to the updated frequency control point set and the current working state of the compressor, wherein the frequency control command comprises: and outputting a second frequency control instruction according to the updated frequency control point set and the frequency boosting working state of the compressor, wherein the second frequency control instruction is used for increasing a preset frequency at the operating frequency in the frequency control point set when the operating frequency is equal to that in the updated frequency control point set in the frequency boosting process of the compressor so as to skip the operating frequency in the updated frequency control point set.
In one embodiment, the computer program when executed by the processor further performs the steps of: if the current sound intensity is greater than the minimum sound intensity in the frequency control point set, replacing the operating frequency corresponding to the minimum sound intensity in the frequency control point set with the current operating frequency corresponding to the current sound intensity, including: acquiring the number of operating frequencies in a frequency control point set; when the number of the operating frequencies in the frequency control point set is smaller than the preset frequency control number, adding the current operating frequency corresponding to the current sound intensity into the frequency control point set; when the number of the operating frequencies in the frequency control point set is equal to the preset frequency control number, if the current sound intensity is greater than the minimum sound intensity in the frequency control point set, replacing the operating frequency corresponding to the minimum sound intensity in the frequency control point set with the current operating frequency corresponding to the current sound intensity.
In one embodiment, the computer program when executed by the processor further performs the steps of: and when the running time of the compressor reaches the preset time length, emptying the latest frequency control point set.
In one embodiment, the computer program when executed by the processor further performs the steps of: when the compressor stops running, the latest set of frequency control points is emptied.
It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data for analysis, stored data, displayed data, etc.) referred to in the present application are information and data authorized by the user or sufficiently authorized by each party.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above may be implemented by hardware instructions of a computer program, which may be stored in a non-volatile computer-readable storage medium, and when executed, may include the processes of the embodiments of the methods described above. Any reference to memory, databases, or other media used in the embodiments provided herein can include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, high-density embedded nonvolatile Memory, resistive Random Access Memory (ReRAM), magnetic Random Access Memory (MRAM), ferroelectric Random Access Memory (FRAM), phase Change Memory (PCM), graphene Memory, and the like. Volatile Memory can include Random Access Memory (RAM), external cache Memory, and the like. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), for example. The databases involved in the embodiments provided herein may include at least one of relational and non-relational databases. The non-relational database may include, but is not limited to, a block chain based distributed database, and the like. The processors referred to in the various embodiments provided herein may be, without limitation, general purpose processors, central processing units, graphics processors, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, or the like.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims (12)

1. An operation frequency control method of an inverter compressor, characterized by comprising the following steps:
acquiring the current sound intensity of the current operating frequency of the compressor and a frequency control point set; the frequency control point set comprises the operation frequency n times higher than the sound intensity during the operation of the compressor;
if the current sound intensity is greater than the minimum sound intensity in the frequency control point set, replacing the operating frequency corresponding to the minimum sound intensity in the frequency control point set with the current operating frequency corresponding to the current sound intensity;
and outputting a frequency control instruction according to the updated frequency control point set, wherein the frequency control instruction is used for skipping the operating frequency in the updated frequency control point set when the operating frequency in the operating process of the compressor is equal to the operating frequency in the updated frequency control point set.
2. The method of claim 1, wherein outputting a frequency control command according to the updated set of frequency control points comprises:
and outputting a frequency control instruction according to the updated frequency control point set and the current working state of the compressor.
3. The method of claim 2, wherein the compressor current operating condition comprises a compressor down-conversion operating condition; the frequency control instruction comprises a first frequency control instruction;
the outputting a frequency control instruction according to the updated frequency control point set and the current working state of the compressor comprises:
and outputting a first frequency control instruction according to the updated frequency control point set and the compressor frequency reduction working state, wherein the first frequency control instruction is used for reducing the preset frequency of the running frequency in the updated frequency control point set when the running frequency in the compressor frequency reduction process is equal to the running frequency in the updated frequency control point set so as to skip the updated running frequency in the frequency control point set.
4. The method of claim 2, wherein the compressor current operating state comprises a compressor up-frequency operating state; the frequency control instruction comprises a second frequency control instruction;
the outputting a frequency control instruction according to the updated frequency control point set and the current working state of the compressor comprises:
and outputting a second frequency control instruction according to the updated frequency control point set and the compressor frequency-increasing working state, wherein the second frequency control instruction is used for increasing a preset frequency at the operating frequency in the updated frequency control point set when the operating frequency is equal to the operating frequency in the updated frequency control point set in the compressor frequency-increasing process so as to skip the operating frequency in the updated frequency control point set.
5. The method of claim 1, wherein if the current sound intensity is greater than the minimum sound intensity in the set of frequency control points, replacing the operating frequency corresponding to the minimum sound intensity in the set of frequency control points with the current operating frequency corresponding to the current sound intensity comprises:
acquiring the number of operating frequencies in the frequency control point set;
when the number of the operating frequencies in the frequency control point set is smaller than the preset frequency control number, adding the current operating frequency corresponding to the current sound intensity into the frequency control point set;
when the number of the operating frequencies in the frequency control point set is equal to the preset frequency control number, if the current sound intensity is greater than the minimum sound intensity in the frequency control point set, replacing the operating frequency corresponding to the minimum sound intensity in the frequency control point set with the current operating frequency corresponding to the current sound intensity.
6. The method of claim 1, further comprising:
and emptying the latest frequency control point set when the running time of the compressor reaches a preset time length.
7. The method of claim 1, further comprising:
emptying the latest frequency control point set when the compressor stops running.
8. An apparatus for controlling the operating frequency of an inverter compressor, the apparatus comprising:
the acquisition module is used for acquiring the current sound intensity of the current operating frequency of the compressor and the frequency control point set; the frequency control point set comprises the operation frequency n times higher than the sound intensity during the operation of the compressor;
an updating module, configured to replace, if the current sound intensity is greater than the minimum sound intensity in the frequency control point set, the operating frequency corresponding to the minimum sound intensity in the frequency control point set with a current operating frequency corresponding to the current sound intensity;
and the control module is used for outputting a frequency control instruction according to the updated frequency control point set, wherein the frequency control instruction is used for controlling the running frequency in the running process of the compressor to be equal to the running frequency in the updated frequency control point set, and skipping the running frequency in the updated frequency control point set.
9. An inverter compressor comprising a compressor body and a controller, said controller frequency controlling said compressor body using the method of any one of claims 1 to 7.
10. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor, when executing the computer program, implements the steps of the method of any of claims 1 to 7.
11. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 7.
12. A computer program product comprising a computer program, characterized in that the computer program realizes the steps of the method of any one of claims 1 to 7 when executed by a processor.
CN202211157853.7A 2022-09-22 2022-09-22 Variable frequency compressor, working frequency control method and device thereof and computer equipment Pending CN115451625A (en)

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CN104266310A (en) * 2014-10-08 2015-01-07 美的集团股份有限公司 Control method of air conditioner, control device of air conditioner and air conditioner
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