CN112576488B

CN112576488B - Frequency adjusting method, device and equipment of variable frequency compressor and storage medium

Info

Publication number: CN112576488B
Application number: CN201910935470.XA
Authority: CN
Inventors: 肖威; 黄晓华; 李操炫; 雷朋飞
Original assignee: Guangdong PHNIX Eco Energy Solution Ltd
Current assignee: Guangdong PHNIX Eco Energy Solution Ltd
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2023-02-21
Anticipated expiration: 2039-09-29
Also published as: CN112576488A

Abstract

The embodiment of the application discloses a frequency adjusting method, a frequency adjusting device, frequency adjusting equipment and a storage medium of a variable frequency compressor. According to the embodiment of the application, the vibration amplitude of the unit is detected in the frequency increasing or reducing adjustment process of the compressor, and when the vibration amplitude of the unit exceeds the preset vibration threshold value, the frequency is adjusted, so that the vibration amplitude of the unit is lower than the vibration threshold value. And simultaneously recording the vibration amplitude of the unit under different operating frequencies and different operating conditions of the compressor, and generating an operating recording chart so as to determine the optimal operating frequency of the unit in the next operation. Adopt above-mentioned technical means, can solve the too big problem of current compressor unit vibration range, carry out compressor operating frequency according to compressor operating mode and adjust, and then realize the real-time regulation of unit amplitude to obtain better unit amplitude regulation effect, prevent that compressor unit from damaging because of excessive vibration.

Description

Frequency adjusting method, device and equipment of variable frequency compressor and storage medium

Technical Field

The embodiment of the application relates to the technical field of compressor vibration reduction, in particular to a frequency adjusting method, a frequency adjusting device, frequency adjusting equipment and a storage medium of a variable frequency compressor.

Background

The compressor is a device for raising low-pressure gas into high-pressure gas as a power source, and is a heart of a refrigeration system of an electric appliance. At present, the compressor often can appear the too big problem of compressor unit vibration amplitude when the compressor is in operation. This problem may be caused by resonance of the unit during the frequency regulation of the compressor or by sudden changes in the system pressure during shutdown. Therefore, in order to solve the problem of too large vibration amplitude of the compressor unit, reduce noise generated by vibration, and prevent the unit from being damaged due to too much vibration, an experimental method is generally adopted, the frequency of the compressor causing the large vibration amplitude of the unit is measured, and the frequency is avoided when the frequency modulation control is performed on the compressor, so that the too large vibration amplitude of the unit is avoided.

However, because the experimental test method is adopted to determine the operation frequency of the compressor causing the too large vibration amplitude of the unit, the experimental condition of the operation frequency is not completely consistent with the actual working condition of the compressor, the frequency modulation control is performed on the compressor according to the frequency obtained by the experiment, the problem of the too large vibration amplitude of the compressor unit cannot be solved well, and the amplitude adjustment effect on the unit is relatively poor.

Disclosure of Invention

The embodiment of the application provides a frequency adjustment method, a frequency adjustment device, frequency adjustment equipment and a storage medium for a variable frequency compressor, which can solve the problem of overlarge vibration amplitude of an existing compressor unit and provide a good amplitude adjustment effect.

In a first aspect, an embodiment of the present application provides a frequency adjustment method for an inverter compressor, including:

presetting a vibration threshold value for unit operation, wherein the vibration threshold value is set according to a noise threshold value and a vibration amplitude allowable threshold value allowed by unit operation;

detecting the vibration amplitude of a unit in real time in the process of up-conversion or down-conversion adjustment of the compressor, and if the vibration amplitude of the unit exceeds the vibration threshold, correspondingly performing step up-conversion or step down-conversion adjustment on the running frequency of the compressor until the vibration amplitude of the unit is lower than the vibration threshold;

recording the vibration amplitude of the unit under different operating frequencies and different operating conditions of the compressor in real time to generate an operating recording chart;

and determining the operation frequency which enables the vibration amplitude of the unit to reach the minimum from the operation recording chart according to the real-time operation condition of the compressor when the unit operates next time, and taking the operation frequency as the optimal operation frequency for the operation of the current compressor.

Further, the detecting the vibration amplitude of the unit in real time during the up-conversion or down-conversion adjustment process of the compressor, and if the vibration amplitude of the unit exceeds the vibration threshold, performing the step up-conversion or step down-conversion adjustment of the operation frequency of the compressor correspondingly until the vibration amplitude of the unit is lower than the vibration threshold, includes:

detecting the vibration amplitude of the unit in real time in the up-conversion adjustment process of the compressor, and comparing the vibration amplitude of the unit detected in real time with the vibration threshold value;

and if the vibration amplitude of the unit exceeds the vibration threshold, performing step frequency-up adjustment of the running frequency of the compressor for a set number of times until the vibration amplitude of the unit is lower than the vibration threshold, wherein each step frequency-up adjustment corresponds to the frequency-up of the running frequency of the compressor by a frequency adjustment value of a set unit.

Further, in the step frequency-up adjustment of the operating frequency of the compressor for a set number of times until the vibration amplitude of the unit is lower than the vibration threshold, the method further includes:

when the frequency of the step frequency increasing adjustment exceeds a set frequency and the vibration amplitude of the unit still exceeds the vibration threshold value, adjusting the operating frequency of the compressor to the initial frequency increasing operating frequency of the secondary compressor during frequency increasing adjustment;

step frequency reduction adjustment is carried out on the initial frequency increasing operation frequency for a set number of times until the vibration amplitude of the unit is lower than the vibration threshold value, and each time the step frequency reduction adjustment corresponds to the frequency adjustment value of one set unit of the compressor operation frequency;

and if the vibration amplitude of the unit still exceeds the vibration threshold value after the stepped frequency reduction adjustment for the set times, judging that the current unit is abnormal in vibration, and outputting a unit abnormal prompt.

Further, in the process of frequency-up or frequency-down regulation of the compressor, detecting the vibration amplitude of the unit in real time, and if the vibration amplitude of the unit exceeds the vibration threshold, correspondingly performing step frequency-up or step frequency-down regulation on the operating frequency of the compressor until the vibration amplitude of the unit is lower than the vibration threshold, further comprising:

detecting the vibration amplitude of the unit in real time in the frequency reduction adjustment process of the compressor, and comparing the vibration amplitude of the unit detected in real time with the vibration threshold value;

and if the vibration amplitude of the unit exceeds the vibration threshold, performing stepped frequency reduction adjustment of the running frequency of the compressor for a set number of times until the vibration amplitude of the unit is lower than the vibration threshold, wherein each time the stepped frequency reduction adjustment corresponds to the running frequency reduction of the compressor by a frequency adjustment value of a set unit.

Further, the step down-conversion adjustment of the operating frequency of the compressor for the set number of times is performed until the vibration amplitude of the unit is lower than the vibration threshold, and the method further includes:

when the frequency of the step frequency reduction adjustment exceeds a set frequency and the vibration amplitude of the unit still exceeds the vibration threshold, adjusting the operating frequency of the compressor to the initial frequency reduction operating frequency of the frequency reduction adjustment of the secondary compressor;

step frequency increasing adjustment is carried out on the initial frequency reducing operation frequency for a set number of times until the vibration amplitude of the unit is lower than the vibration threshold value, and each time the step frequency increasing adjustment corresponds to the frequency increasing of the operation frequency of the compressor by a frequency adjustment value of a set unit;

and if the vibration amplitude of the unit still exceeds the vibration threshold value after the step frequency-up adjustment for the set times, judging that the current unit is abnormal in vibration, and outputting a unit abnormal prompt.

Further, in the step of recording the vibration amplitudes of the unit under different operating frequencies and different operating conditions of the compressor in real time to generate the operation recording chart, the vibration amplitudes of the unit under different operating frequencies and different operating conditions of the compressor are recorded corresponding to each unit operation, so as to generate the corresponding operation recording chart, and the newly generated operation recording chart is used for replacing the operation recording chart obtained by the previous unit operation.

Further, detecting the vibration amplitude of the unit in real time, and if the vibration amplitude of the unit exceeds the vibration threshold, performing step frequency up or step frequency down adjustment on the operating frequency of the compressor correspondingly until the vibration amplitude of the unit is lower than the vibration threshold, and then the method further includes:

and when the compressor is shut down next time, the compressor is shut down after running for a set time period at the shutdown frequency point.

Further, the step down-conversion shutdown operation is performed when the compressor is in the set shutdown operation frequency, vibration amplitude information corresponding to each frequency point is recorded, a shutdown frequency point is selected from each frequency point according to the vibration amplitude information, and the compressor is shut down after running for the set time period at the shutdown frequency point next time, including:

presetting a critical vibration value, wherein the critical vibration value is set according to the allowable amplitude of unit vibration when the compressor is shut down;

performing down-conversion shutdown operation when the compressor is at a set shutdown operation frequency, and performing step down-conversion adjustment on the set shutdown operation frequency every other set time period until the operation frequency of the compressor is adjusted to the set lowest operation frequency of the compressor;

in the step frequency-reducing adjustment process, unit vibration amplitude detection is carried out on each frequency point, the unit lowest vibration amplitude corresponding to each frequency point is recorded, and if the unit lowest vibration amplitude corresponding to each frequency point is lower than the critical vibration value, the time when the unit vibration amplitude reaches the critical vibration value when the compressor runs at the corresponding frequency point is recorded as amplitude adjustment time;

and determining a shutdown frequency point from all frequency points according to the lowest vibration amplitude and the amplitude regulation time, and when the compressor is shut down next time, operating the compressor for a set time period according to the shutdown frequency point and then shutting down the compressor.

Further, in determining a shutdown frequency point from each frequency point according to the lowest vibration amplitude and the amplitude adjustment time, selecting one frequency point with the lowest vibration amplitude having the smallest value from each frequency point as the shutdown frequency point, and if a plurality of frequency points with the lowest vibration amplitude having the smallest value exist, selecting the frequency point with the shortest amplitude adjustment time from the frequency points as the shutdown frequency point.

Further, in the step frequency-down adjustment process, unit vibration amplitude detection is performed on each frequency point, the lowest unit vibration amplitude corresponding to each frequency point is recorded, if the lowest unit vibration amplitude corresponding to the frequency point is lower than the critical vibration value, the time when the unit vibration amplitude reaches the critical vibration value when the compressor runs at the corresponding frequency point is recorded, and if the lowest unit vibration amplitude corresponding to the frequency point still exceeds the critical vibration value, the corresponding frequency point is marked as a vibration failing point;

correspondingly, in the step of determining a shutdown frequency point from all frequency points according to the lowest vibration amplitude and the amplitude adjusting time, the frequency points marked as vibration failing points are screened in advance.

In a second aspect, an embodiment of the present application provides an apparatus for adjusting a frequency of an inverter compressor, including:

the device comprises a setting module, a control module and a control module, wherein the setting module is used for presetting a vibration threshold value of unit operation, and the vibration threshold value is set according to a noise threshold value and a vibration amplitude allowable threshold value allowed by the unit operation;

the adjusting module is used for detecting the vibration amplitude of the unit in real time in the process of the frequency increasing or frequency reducing adjustment of the compressor, and if the vibration amplitude of the unit exceeds the vibration threshold, the step frequency increasing or step frequency reducing adjustment of the running frequency of the compressor is correspondingly carried out until the vibration amplitude of the unit is lower than the vibration threshold;

the recording module is used for recording the vibration amplitude of the unit under different operating frequencies and different operating conditions of the compressor in real time to generate an operating recording chart;

and the operation module is used for determining the operation frequency which enables the vibration amplitude of the unit to reach the minimum from the operation recording chart according to the real-time operation condition of the compressor when the unit operates next time, and the operation frequency is used as the optimal operation frequency for the operation of the secondary compressor.

In a third aspect, an embodiment of the present application provides an apparatus, including:

a memory and one or more processors;

the memory for storing one or more programs;

when executed by the one or more processors, cause the one or more processors to implement the inverter compressor frequency adjustment method of the first aspect.

In a fourth aspect, embodiments of the present application provide a storage medium containing computer executable instructions for performing the inverter compressor frequency regulation method according to the first aspect when executed by a computer processor.

According to the embodiment of the application, the vibration amplitude of the unit is detected in the frequency increasing or reducing adjustment process of the compressor, and when the vibration amplitude of the unit exceeds the preset vibration threshold value, the frequency is adjusted, so that the vibration amplitude of the unit is lower than the vibration threshold value. And simultaneously recording the vibration amplitude of the unit under different operating frequencies and different operating conditions of the compressor, and generating an operating recording chart so as to determine the optimal operating frequency of the unit in the next operation. Adopt above-mentioned technical means, can solve the too big problem of current compressor unit vibration range, carry out compressor operating frequency according to compressor operating mode and adjust, and then realize the real-time regulation of unit amplitude to obtain better unit amplitude regulation effect, prevent that compressor unit from damaging because of excessive vibration.

In addition, the operation frequency of the compressor is adjusted in real time, and the optimal operation frequency obtained through the operation recording chart is used as the operation frequency of the compressor in the next operation of the unit. The problem that errors exist when the existing experimental data are adopted to adjust the vibration amplitude of the compressor unit can be solved, and the real-time performance of adjusting the vibration amplitude of the compressor unit is achieved.

Drawings

FIG. 1 is a flow chart of a method for adjusting the frequency of an inverter compressor according to an embodiment of the present disclosure;

FIG. 2 is a flowchart illustrating an up-conversion adjustment according to a first embodiment of the present application;

fig. 3 is a flowchart of adjusting the initial up-conversion operating frequency in the first embodiment of the present application;

FIG. 4 is a flow chart of down-regulation according to a first embodiment of the present application;

FIG. 5 is a flowchart illustrating an initial down-conversion operation frequency adjustment according to a first embodiment of the present application;

FIG. 6 is a flow chart of another frequency adjustment method for an inverter compressor according to a second embodiment of the present application;

fig. 7 is a schematic structural diagram of a frequency adjustment device of an inverter compressor according to a third embodiment of the present application;

fig. 8 is a schematic structural diagram of an apparatus provided in the fourth embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, specific embodiments of the present application are described in detail below with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad application. It should be further noted that, for the convenience of description, only some but not all of the relevant portions of the present application are shown in the drawings. Before discussing exemplary embodiments in more detail, it should be noted that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although a flowchart may describe the operations (or steps) as a sequential process, many of the operations can be performed in parallel, concurrently or simultaneously. In addition, the order of the operations may be re-arranged. The process may be terminated when its operations are completed, but may have additional steps not included in the figure. The processes may correspond to methods, functions, procedures, subroutines, subprograms, and the like.

The application provides a frequency conversion compressor frequency adjustment method aims at adjusting the operating frequency of frequency conversion compressor in real time to avoid the compressor unit to produce great vibration amplitude because of resonance, make the vibration amplitude control of compressor unit at reasonable within range, realize better unit vibration amplitude and adjust, and then avoid the too big vibration noise and the unit wearing and tearing scheduling problem that lead to of compressor unit vibration. Compared with the existing compressor operation frequency which causes the too large vibration amplitude of the unit and is determined by adopting an experimental test method, the problem of the too large vibration amplitude of the unit is avoided by avoiding the frequencies. Because the unit of experiment test may have the difference with the unit of production line production, can lead to the unit vibration amplitude too big frequency that results in that the experiment measured can not represent all units in actual production and lead to the too big frequency of vibration amplitude. Moreover, the working condition of the compressor during the experimental test cannot be completely consistent with the working condition of the compressor during the actual use, and the operation frequency points needing to be avoided during the experimental test are not necessarily the operation frequency points needing to be avoided during the actual use. In addition, the compressor is along with unit wearing and tearing in the use, leads to its too big frequency of vibration amplitude also can constantly change, and the operating frequency that needs to avoid that the experiment was measured is fixed unchangeable, if only avoid the operating frequency that needs to avoid that the experiment was measured, can lead to compressor unit when leaving the factory that the unit vibration amplitude is little, but will appear the risk that the unit vibration amplitude is big after using a period. Based on this, the frequency adjustment method for the variable frequency compressor provided by the embodiment of the application solves the problems that the vibration amplitude of the existing compressor unit is too large and the error of the adjustment of the vibration amplitude of the unit is large through experimental data by adjusting the real-time running frequency.

The first embodiment is as follows:

fig. 1 is a flowchart of an inverter compressor frequency adjustment method according to an embodiment of the present disclosure, where the inverter compressor frequency adjustment method provided in this embodiment may be executed by an inverter compressor frequency adjustment device, the inverter compressor frequency adjustment device may be implemented in a software and/or hardware manner, and the inverter compressor frequency adjustment device may be formed by two or more physical entities or may be formed by one physical entity. Generally, the inverter compressor frequency adjustment device may be a control device of the compressor.

The following description will be given taking an inverter compressor frequency adjusting apparatus as an example of an apparatus for performing the inverter compressor frequency adjusting method. Referring to fig. 1, the method for adjusting the frequency of the inverter compressor specifically includes:

s110, presetting a vibration threshold value of unit operation, wherein the vibration threshold value is set according to a noise threshold value and a vibration amplitude allowable threshold value allowed by the unit operation;

specifically, before the frequency of the compressor is adjusted, a vibration threshold value for the operation of the compressor unit is preset. And setting a vibration threshold value under the normal operation condition of the compressor unit. The vibration threshold is the maximum vibration amplitude value allowed to be generated by the unit when the compressor normally operates. It will be appreciated that, when the compressor is running, if the vibration amplitude of the unit is less than the vibration threshold, the wear on the unit is relatively small, and no loud noise is generated, which affects the use of the user. If the vibration amplitude of the unit exceeds the vibration threshold, large vibration noise can be generated, and various parts of the unit can be damaged to a certain extent.

And when the vibration threshold is set, the noise threshold and the vibration amplitude allowable threshold allowed by the unit during operation are comprehensively measured and calculated, and then the setting is carried out. The noise threshold is the maximum noise allowed when the compressor operates, and when the noise threshold is lower than the noise threshold, larger noise cannot be generated, so that the influence on the normal use of a user is avoided. Similarly, the vibration amplitude allowable threshold is a maximum vibration amplitude value that is considered from the unit wear perspective alone to minimize equipment wear. The vibration threshold is determined by integrating this vibration amplitude allowance threshold and the noise threshold. In actual use, according to the unit operation needs, the noise threshold value and the allowable threshold value of the vibration amplitude are adjusted, and the adjustment can be carried out corresponding to the vibration threshold value. It should be noted that, in the implementation of the present application, the vibration threshold of the unit is determined not only by using the vibration amplitude allowable threshold, but also by considering that although the vibration amplitude of a part of the unit is lower than the vibration amplitude allowable threshold, serious noise is still generated at the vibration amplitude, and therefore the vibration threshold cannot be determined by using the vibration amplitude allowable threshold alone. Similarly, the vibration threshold may also be adaptively adjusted up to approach the vibration amplitude tolerance threshold for performance requirements, with the acceptance of appropriate noise.

And S120, detecting the vibration amplitude of the unit in real time in the process of the frequency increasing or frequency reducing adjustment of the compressor, and if the vibration amplitude of the unit exceeds the vibration threshold, correspondingly performing step frequency increasing or step frequency reducing adjustment on the running frequency of the compressor until the vibration amplitude of the unit is lower than the vibration threshold.

Illustratively, the embodiment of the application acquires data of a vibration sensor to detect the vibration amplitude of the unit in real time. The vibration sensor is generally installed at a position on the unit where vibration amplitude data can be conveniently detected, such as a chassis of the unit. When the unit normally operates, the vibration sensor detects the vibration amplitude of the unit in real time and uploads the vibration amplitude data to the frequency regulation equipment of the variable frequency compressor. And comparing the acquired unit vibration amplitude with a preset vibration threshold value by the frequency conversion compressor frequency adjusting equipment. And according to the comparison result, if the vibration amplitude of the unit does not exceed the vibration threshold, the current unit normally operates, the vibration amplitude of the unit is in a normal state, and the compressor is controlled to operate according to the current operation frequency. If the vibration amplitude of the unit exceeds the vibration threshold value, the vibration amplitude of the unit is in an abnormal state, and the operation frequency of the compressor needs to be adjusted to reduce the vibration amplitude of the unit. When the operation frequency of the compressor is adjusted, the frequency is further adjusted according to whether the current compressor is in an up-frequency adjustment state or a down-frequency adjustment state, so that the vibration amplitude of the unit is reduced to be below a vibration threshold value.

Specifically, referring to fig. 2, the compressor up-conversion adjustment process includes:

s1211, detecting the vibration amplitude of the unit in real time in the process of increasing the frequency of the compressor, and comparing the vibration amplitude of the unit detected in real time with the vibration threshold value;

and S1212, if the vibration amplitude of the unit exceeds the vibration threshold, performing step frequency-up adjustment on the operation frequency of the compressor for a set number of times until the vibration amplitude of the unit is lower than the vibration threshold, wherein each step frequency-up adjustment corresponds to the step frequency-up adjustment of the operation frequency of the compressor by a frequency adjustment value of a set unit.

Specifically, when the compressor is in the frequency-increasing adjusting process, the real-time vibration amplitude of the unit is detected through the vibration sensor, and when the vibration amplitude is larger than a vibration threshold value, the vibration amplitude of the unit is controlled under the frequency-increasing adjusting state of the compressor. It will be appreciated that since the unit vibration is a resonance caused by the compressor when operating. Therefore, the resonance frequency of the unit can be changed by changing the running frequency of the compressor, and the vibration amplitude of the unit is further changed. Based on this, this application adopts the ladder frequency modulation mode to carry out frequency control. And in the process of the frequency rising adjustment of the compressor, if the vibration amplitude of the unit exceeds a vibration threshold value, performing step frequency rising adjustment operation on the compressor. And in the step frequency rising regulation, each step frequency rising regulation corresponds to the frequency of the compressor operation frequency rising by a frequency regulation value of a set unit. The frequency adjustment value for this set unit may be the minimum variable frequency adjustment value for the compressor. And (3) regulating the frequency each time, automatically increasing the frequency by the compressor by a minimum variable frequency regulating value, detecting the vibration amplitude of the unit again, and if the vibration amplitude of the unit is reduced to be below a vibration threshold value, normally operating the unit at the frequency. And if the vibration amplitude of the unit still exceeds the vibration threshold value, continuously increasing the frequency by a minimum frequency conversion regulating value. According to the logic, the set number of step frequency raising adjustments (five times in the embodiment of the application) is carried out until the vibration amplitude of the unit is reduced below the vibration threshold value.

If the vibration amplitude of the unit still exceeds the vibration threshold value after five times of continuous step frequency-up adjustment, performing initial frequency-up operation frequency adjustment, referring to fig. 3, where the initial frequency-up operation frequency adjustment process includes:

s1213, when the stepped frequency-increasing adjustment times exceed the set times and the vibration amplitude of the unit still exceeds the vibration threshold, adjusting the operating frequency of the compressor to the initial frequency-increasing operating frequency of the secondary compressor;

s1214, performing stepped down-conversion adjustment on the initial frequency increasing operation frequency for a set number of times until the vibration amplitude of the unit is lower than the vibration threshold value, wherein each time the stepped down-conversion adjustment corresponds to a frequency adjustment value of a set unit of compressor operation frequency down-conversion;

and S1215, if the vibration amplitude of the unit still exceeds the vibration threshold value after the stepped frequency reduction adjustment for the set times, judging that the current unit is abnormal in vibration, and outputting a unit abnormal prompt.

For example, after five times of continuous step frequency-up adjustment, the vibration amplitude of the unit still cannot be reduced below the vibration threshold, and then the initial frequency-up operation frequency adjustment of the current frequency-up adjustment is performed. And further adjusting the running frequency of the compressor by reducing the running frequency of the current compressor to the initial frequency-increasing running frequency of the frequency-increasing adjustment of the current compressor.

Based on this adjusted initial up-conversion operating frequency, step down-conversion adjustment is performed a set number of times (five times). Wherein, each step frequency reduction adjustment corresponds to a frequency adjustment value of a set unit of the compressor running frequency reduction. The frequency adjustment value of the set unit may be a minimum variable frequency adjustment value of the compressor frequency adjustment. And reducing a minimum frequency conversion regulating value for the initial frequency increasing operation frequency, detecting the vibration amplitude of the unit, and comparing whether the detected vibration amplitude of the unit is smaller than a vibration threshold value. And if the vibration amplitude of the unit is reduced to be lower than the vibration threshold value, controlling the compressor unit to normally operate at the frequency. And if the vibration amplitude of the unit still exceeds the vibration threshold value, continuing to reduce the frequency by a minimum variable frequency regulating value. According to this logic, the frequency is reduced until the vibration amplitude of the unit falls below the vibration threshold.

Further, in the step frequency reduction adjustment process, if the vibration amplitude still cannot be reduced to be below the vibration threshold value after five times of continuous frequency reduction, the adjustment fails, and it is determined that the unit has abnormal vibration, which indicates that the current frequency adjustment cannot eliminate the abnormal vibration amplitude. And if the abnormal condition needs to be further eliminated manually, the frequency-conversion compressor frequency adjusting equipment outputs an alarm prompt to prompt a user to eliminate the abnormal vibration of the unit so as to solve the abnormal vibration.

On the other hand, referring to fig. 4, the compressor down-regulation process includes:

s1221, detecting the vibration amplitude of the unit in real time in the compressor frequency reduction adjusting process, and comparing the vibration amplitude of the unit detected in real time with the vibration threshold value;

and S1222, if the vibration amplitude of the unit exceeds the vibration threshold, performing step down-frequency adjustment of the operation frequency of the compressor for a set number of times until the vibration amplitude of the unit is lower than the vibration threshold, wherein each step down-frequency adjustment corresponds to a frequency adjustment value of a set unit of the operation frequency down-frequency of the compressor.

Specifically, when the compressor is in the frequency reduction adjustment process, the real-time vibration amplitude of the unit is detected through the vibration sensor, and when the vibration amplitude is larger than a vibration threshold value, the vibration amplitude of the unit is controlled under the frequency reduction adjustment state of the compressor. It will be appreciated that since the unit vibration is a resonance caused by the compressor operation. Therefore, the resonance frequency of the unit can be changed by changing the running frequency of the compressor, and the vibration amplitude of the unit is further changed. Based on this, this application adopts the ladder frequency modulation mode to carry out frequency control. And in the process of the compressor frequency reduction adjustment, if the vibration amplitude of the unit exceeds a vibration threshold value, performing step frequency reduction adjustment operation on the compressor. In the step frequency-reducing regulation process, each step frequency-reducing regulation corresponds to a frequency regulation value of a set unit of the running frequency of the compressor. The frequency adjustment value for this set unit may be the minimum variable frequency adjustment value for the compressor. And (3) regulating the frequency each time, automatically reducing the frequency of the compressor to a minimum variable frequency regulating value, detecting the vibration amplitude of the unit again, and if the vibration amplitude of the unit is reduced to be below a vibration threshold value, enabling the unit to normally operate at the frequency. And if the vibration amplitude of the unit still exceeds the vibration threshold value, continuing to reduce the frequency by a minimum variable frequency regulating value. According to the logic, stepped down frequency adjustment is performed for a set number of times (five times in the embodiment of the application), and down frequency is performed until the vibration amplitude of the unit is reduced below the vibration threshold.

If the vibration amplitude of the unit still exceeds the vibration threshold after the continuous stepped frequency reduction adjustment is performed for five times, performing initial frequency reduction operation frequency adjustment, referring to fig. 5, where the initial frequency reduction operation frequency adjustment process includes:

s1223, when the stepped frequency reduction adjustment times exceed the set times and the vibration amplitude of the unit still exceeds the vibration threshold value, adjusting the operating frequency of the compressor to the initial frequency reduction operating frequency of the secondary compressor frequency reduction adjustment;

s1224, step frequency rising adjustment is carried out on the initial frequency reduction operation frequency for a set number of times until the vibration amplitude of the unit is lower than the vibration threshold value, and each step frequency rising adjustment corresponds to the frequency of the compressor operation frequency and is carried out by a frequency adjustment value of a set unit;

and S1225, if the vibration amplitude of the set still exceeds the vibration threshold value after the set number of times of step frequency-up adjustment, judging that the current set is abnormal in vibration, and outputting a prompt of the set abnormality.

For example, after five times of continuous stepped down-frequency adjustment, if the vibration amplitude of the unit still cannot be reduced below the vibration threshold, the initial down-frequency operation frequency adjustment of the current down-frequency adjustment is performed. And increasing the current running frequency of the compressor to the initial frequency-reduction running frequency of the current compressor frequency-reduction regulation, and further regulating the running frequency of the compressor.

Based on this adjusted initial down-conversion operation frequency, step up-conversion adjustment is performed for a set number of times (five times). And each time of step frequency rising adjustment is carried out, the frequency of the frequency rising adjustment value corresponds to the running frequency of the compressor, and the frequency of the frequency rising adjustment value corresponds to a set unit. The frequency adjustment value of the set unit may be a minimum variable frequency adjustment value of the compressor frequency adjustment. And detecting the vibration amplitude of the set by raising the initial frequency reduction operating frequency by a minimum frequency conversion regulating value, and comparing whether the detected vibration amplitude of the set is smaller than a vibration threshold value. And if the vibration amplitude of the unit is reduced to be below the vibration threshold value, controlling the compressor unit to normally operate under the frequency. And if the vibration amplitude of the unit still exceeds the vibration threshold value, continuously increasing the frequency by a minimum variable frequency regulating value. According to this logic, the frequency is increased until the amplitude of the vibration of the unit falls below a vibration threshold.

Further, in the process of step frequency-up adjustment, if the vibration amplitude still cannot be reduced below the vibration threshold value for five times of continuous frequency-up adjustment, the adjustment fails, and it is determined that the unit has abnormal vibration, which indicates that the current frequency adjustment cannot eliminate the abnormal vibration amplitude. And if the abnormal condition needs to be further eliminated manually, the frequency-conversion compressor frequency adjusting equipment outputs an alarm prompt to prompt a user to eliminate the abnormal vibration of the unit so as to solve the abnormal vibration.

And S130, recording the vibration amplitude of the unit under different operating frequencies and different operating conditions of the compressor in real time, and generating an operating record chart.

Specifically, in the process of adjusting the frequency of the compressor, the vibration amplitudes of the unit corresponding to different operating frequencies of the compressor are recorded, so that the operating frequency at which the vibration of the unit reaches the minimum is determined according to the recording. And, when recording, still record corresponding to the operating condition that the compressor runs. The operation condition specifically comprises the environmental parameters and the operation indexes of the unit, and is generally described as the parameter information such as the environmental temperature, the compressor outlet water temperature, the unit energy efficiency and the like, and the parameter information is stored together with the real-time operation frequency and the corresponding unit operation frequency. So as to determine an optimal operation frequency according to the actual operation condition.

More specifically, after the unit vibration amplitudes under different operating frequencies and operating conditions are recorded, the operating frequencies exceeding the vibration threshold are automatically judged and removed, and an operating recording chart of the unit operating conditions, the operating frequencies and the corresponding vibration amplitudes is generated. And corresponding to each unit operation, recording the vibration amplitude of the unit under different operating frequencies and different operating conditions of the compressor, generating a corresponding operation recording chart, and replacing the newly generated operation recording chart with the operation recording chart obtained by the previous unit operation. Because along with the compressor operation, various operating modes such as running-in, ageing can appear in the unit, consequently, need all record the frequency control of unit operation each time to obtain compressor unit real-time operating mode, real-time operating frequency and corresponding vibration amplitude, ensure the real-time of data. Further avoid real-time wearing and tearing of unit equipment to lead to the error of unit vibration amplitude adjustment.

And S140, determining the operation frequency which enables the vibration amplitude of the unit to be minimum from the operation recording diagram according to the real-time operation condition of the compressor during the next operation of the unit, and taking the operation frequency as the optimal operation frequency for the current operation of the compressor.

According to the operation record chart obtained in the step S130, when the unit operates next time, the frequency-variable compressor frequency adjusting device compares the operation record chart according to the detected real-time operation condition of the unit, selects the operation frequency that minimizes the vibration amplitude of the unit as the optimal operation frequency to perform step frequency modulation control, and selects the optimal operation frequency by combining the step frequency adjustment logic and contrasting the operation record chart with each frequency output.

Furthermore, the optimal operation frequency of the unit is determined from the latest operation record chart according to the real-time operation condition every time the unit operates. And real-time frequency adjustment of the compressor is performed based on the optimal operating frequency. And simultaneously, in the operation process, recording the real-time operation frequency, the real-time operation condition and the corresponding unit vibration amplitude corresponding to each unit operation, and generating an operation recording chart so as to provide the optimal operation frequency of the next unit operation.

In the process of frequency increasing or frequency reducing adjustment of the compressor, the vibration amplitude of the unit is detected, and when the vibration amplitude of the unit exceeds a preset vibration threshold value, frequency adjustment is performed, so that the vibration amplitude of the unit is lower than the vibration threshold value. And simultaneously recording the vibration amplitude of the unit under different operating frequencies and different operating conditions of the compressor, and generating an operating recording chart so as to determine the optimal operating frequency of the unit in the next operation. Adopt above-mentioned technical means, can solve the too big problem of current compressor unit vibration range, carry out compressor operating frequency according to compressor operating mode and adjust, and then realize the real-time regulation of unit amplitude to obtain better unit amplitude regulation effect, prevent that compressor unit from damaging because of excessive vibration.

Example two:

on the basis of the foregoing embodiment, fig. 6 is a flowchart of another frequency adjustment method for an inverter compressor according to a second embodiment of the present application. Referring to fig. 6, the method for adjusting the frequency of the inverter compressor provided in this embodiment specifically includes:

s210, presetting a vibration threshold value for unit operation, wherein the vibration threshold value is set according to a noise threshold value and a vibration amplitude allowable threshold value allowed by unit operation;

s220, detecting the vibration amplitude of the unit in real time in the process of frequency increasing or frequency reducing adjustment of the compressor, and if the vibration amplitude of the unit exceeds the vibration threshold, correspondingly performing step frequency increasing or step frequency reducing adjustment on the running frequency of the compressor until the vibration amplitude of the unit is lower than the vibration threshold;

s230, presetting a critical vibration value, wherein the critical vibration value is set according to the allowable vibration amplitude of the unit when the compressor is shut down;

s240, performing frequency reduction shutdown operation when the compressor is in the set shutdown operation frequency, and performing stepped frequency reduction adjustment on the set shutdown operation frequency every other set time period until the operation frequency of the compressor is adjusted to the set lowest operation frequency of the compressor;

s250, in the process of stepped frequency reduction adjustment, unit vibration amplitude detection is carried out on each frequency point, the lowest vibration amplitude of the unit corresponding to each frequency point is recorded, if the lowest vibration amplitude of the unit corresponding to the frequency point still exceeds the critical vibration value, the corresponding frequency point is marked as a vibration unqualified point, and if the lowest vibration amplitude of the unit corresponding to the frequency point is lower than the critical vibration value, the time when the unit vibration amplitude reaches the critical vibration value when the compressor runs at the corresponding frequency point is recorded as amplitude adjustment time;

and S260, screening frequency points marked as vibration unqualified points in advance, determining a shutdown frequency point from each frequency point according to the lowest vibration amplitude and the amplitude regulation time, and when the compressor is shut down next time, operating the compressor for a set time period according to the shutdown frequency point and then shutting down the compressor.

Specifically, the embodiment of the application provides adjustment of the vibration amplitude of the unit when the compressor is shut down. A critical vibration value is preset and is set according to the allowable vibration amplitude of the unit when the compressor is shut down. It can be understood that the critical vibration value is used as a maximum vibration amplitude value allowed when the unit is shut down, when the vibration amplitude of the unit is lower than the critical vibration value, the unit is normally shut down, and when the vibration amplitude of the unit exceeds the critical vibration value, the unit is abnormally shut down.

And selecting to perform a frequency-reducing shutdown operation when the unit is at a set shutdown operation frequency based on the critical vibration value, wherein the set shutdown operation frequency is an operation frequency of which the operation frequency of the compressor is 10HZ higher than the set lowest operation frequency of the unit. And each frequency point is operated for 5 minutes by decreasing the minimum frequency conversion regulating value from the shutdown operation frequency point to the set minimum operation frequency point of the compressor, and the minimum vibration amplitude of the unit and the time for the unit to reach the critical vibration value in the operation process are recorded. And after 5 minutes, the frequency is reduced to the next frequency point, and the work is repeated. If the vibration amplitude of the unit is not reduced to the critical vibration value after the compressor operates for 5 minutes at a certain operating frequency, marking the operating frequency point as a vibration failure point, directly adjusting to the next operating frequency point, and repeating the operation until the operating frequency of the compressor is reduced to the set lowest operating frequency point. In the step frequency-reducing adjustment process, the lowest vibration amplitude corresponding to each frequency in the process and the amplitude adjustment time for reaching the critical vibration value are recorded, the frequency points with unqualified vibration are analyzed, and the frequency point with the lowest vibration value as the minimum is selected from the qualified frequency points. Further, if there are a plurality of lowest vibration values with the smallest recorded values, a frequency point with the shortest amplitude adjustment time, that is, a frequency point faster reaching the critical vibration value, is selected from the frequencies as a shutdown frequency point for the next shutdown of the compressor. And when the compressor is shut down later, taking the shutdown frequency point as the running frequency of the compressor during shutdown, and controlling the unit to stop after continuously running for 30 minutes.

By adopting the technical scheme, the vibration amplitude adjustment of the compressor unit when the compressor unit is shut down can be realized, a better amplitude adjustment effect is provided when the compressor unit is shut down, and the problem that the compressor unit is abraded and even damaged due to large vibration amplitude when the compressor unit is shut down is avoided.

Example three:

on the basis of the foregoing embodiments, fig. 7 is a schematic structural diagram of a frequency adjustment device of an inverter compressor according to a third embodiment of the present application. Referring to fig. 7, the frequency adjusting apparatus of the inverter compressor provided in this embodiment specifically includes: a setting module 31, a regulating module 32, a recording module 33 and an operating module 34.

The setting module 31 is configured to preset a vibration threshold for unit operation, where the vibration threshold is set according to a noise threshold and a vibration amplitude allowable threshold allowed by unit operation;

the adjusting module 32 is configured to detect a vibration amplitude of the unit in real time during a frequency-up or frequency-down adjustment process of the compressor, and if the vibration amplitude of the unit exceeds the vibration threshold, perform step frequency-up or step frequency-down adjustment of the operating frequency of the compressor correspondingly until the vibration amplitude of the unit is lower than the vibration threshold;

the recording module 33 is used for recording the vibration amplitude of the unit under different operating frequencies and different operating conditions of the compressor in real time to generate an operating recording chart;

and the operation module 34 is configured to determine, from the operation log according to the real-time operation condition of the compressor, an operation frequency at which the vibration amplitude of the unit reaches a minimum value as an optimal operation frequency for the current operation of the compressor when the unit is operated next time.

Specifically, the adjusting module 32 includes:

the first detection unit is used for detecting the vibration amplitude of the unit in real time in the frequency-up regulation process of the compressor and comparing the vibration amplitude of the unit detected in real time with the vibration threshold value;

the first frequency increasing unit is used for performing step frequency increasing adjustment on the running frequency of the compressor for a set number of times when the vibration amplitude of the unit exceeds the vibration threshold value until the vibration amplitude of the unit is lower than the vibration threshold value, and the step frequency increasing adjustment is performed for one frequency adjustment value of a set unit corresponding to the running frequency of the compressor each time.

The first adjusting unit is used for adjusting the operating frequency of the compressor to the initial frequency-increasing operating frequency of the secondary compressor when the frequency of the step frequency-increasing adjustment exceeds the set frequency and the vibration amplitude of the unit still exceeds the vibration threshold value;

the first frequency reduction unit is used for carrying out stepped frequency reduction adjustment on the initial frequency increasing operation frequency for a set number of times until the vibration amplitude of the unit is lower than the vibration threshold value, and the stepped frequency reduction adjustment is carried out for one set unit of frequency adjustment value corresponding to the compressor operation frequency in frequency reduction manner every time;

and the first prompting unit is used for judging that the current unit vibrates abnormally after the set vibration amplitude still exceeds the vibration threshold value after the stepped frequency reduction adjustment for the set times, and outputting a unit abnormal prompt.

Specifically, the adjusting module 32 further includes:

the second detection unit is used for detecting the vibration amplitude of the unit in real time in the frequency reduction adjustment process of the compressor and comparing the vibration amplitude of the unit detected in real time with the vibration threshold value;

the second frequency reduction unit is used for performing step frequency reduction adjustment of the running frequency of the compressor for a set number of times when the vibration amplitude of the unit exceeds the vibration threshold value until the vibration amplitude of the unit is lower than the vibration threshold value, and each time the step frequency reduction adjustment corresponds to the frequency adjustment value of one set unit of the running frequency reduction of the compressor.

The second adjusting unit is used for adjusting the operating frequency of the compressor to the initial frequency reduction operating frequency of the secondary compressor when the stepped frequency reduction adjusting times exceed the set times and the vibration amplitude of the unit still exceeds the vibration threshold value;

the second frequency increasing unit is used for performing step frequency increasing adjustment on the initial frequency reduction operation frequency for a set number of times until the vibration amplitude of the unit is lower than the vibration threshold value, and each step frequency increasing adjustment corresponds to the frequency increase of the operation frequency of the compressor by a frequency adjustment value of a set unit;

and the second prompting unit is used for judging that the current unit vibrates abnormally after the set number of step frequency-up adjustments and the unit vibration amplitude still exceeds the vibration threshold value, and outputting a unit abnormal prompt.

Specifically, still include:

the setting module is used for presetting a critical vibration value, and the critical vibration value is set according to the allowable amplitude of unit vibration when the compressor is shut down;

the second adjusting module is used for performing frequency reduction shutdown operation when the compressor is at the set shutdown operation frequency, and performing step frequency reduction adjustment on the set shutdown operation frequency at intervals of a set time period until the operation frequency of the compressor is adjusted to the set lowest operation frequency of the compressor;

the recording module is used for detecting the vibration amplitude of the unit for each frequency point in the stepped frequency reduction adjusting process, recording the lowest vibration amplitude of the unit corresponding to each frequency point, and recording the time when the vibration amplitude of the unit reaches the critical vibration value when the compressor runs at the corresponding frequency point as the amplitude adjusting time if the lowest vibration amplitude of the unit corresponding to each frequency point is lower than the critical vibration value;

and the shutdown module is used for determining a shutdown frequency point from all frequency points according to the lowest vibration amplitude and the amplitude regulation time, and when the compressor is shut down next time, the compressor is shut down after running for a set time period at the shutdown frequency point.

The frequency adjusting device of the inverter compressor provided by the third embodiment of the present application can be used for executing the frequency adjusting method of the inverter compressor provided by the first embodiment and the second embodiment, and has corresponding functions and beneficial effects.

Example four:

an embodiment of the present application provides an apparatus, and with reference to fig. 8, the apparatus includes: a processor 41, a memory 42, a communication module 43, an input device 44, and an output device 45. The number of processors in the device may be one or more and the number of memories in the device may be one or more. The processor 41, memory 42, communication module 43, input device 44 and output device 45 of the apparatus may be connected by a bus or other means.

The memory 42 is a computer-readable storage medium for storing software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the frequency adjustment method of the inverter compressor according to any embodiment of the present application (for example, a setting module, an adjusting module, a recording module, and an operating module in the frequency adjustment apparatus of the inverter compressor). The memory can mainly comprise a program storage area and a data storage area, wherein the program storage area can store an operating system and an application program required by at least one function; the storage data area may store data created according to use of the device, and the like. Further, the memory may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, the memory may further include memory remotely located from the processor, which may be connected to the device through a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The communication module 43 is used for data transmission.

The processor 41 executes various functional applications and data processing of the device by executing software programs, instructions and modules stored in the memory, that is, the frequency adjustment method of the inverter compressor is realized.

The input device 44 may be used to receive entered numeric or character information and to generate key signal inputs relating to user settings and function controls of the apparatus. The output device 45 may include a display device such as a display screen.

The device provided by the above can be used for executing the frequency adjusting method of the inverter compressor provided by the first embodiment and the second embodiment, and has corresponding functions and beneficial effects.

Example five:

embodiments of the present application also provide a storage medium containing computer-executable instructions, which when executed by a computer processor, are configured to perform a method for frequency adjustment of an inverter compressor, the method comprising: presetting a vibration threshold value for unit operation, wherein the vibration threshold value is set according to a noise threshold value and a vibration amplitude allowable threshold value allowed by unit operation; detecting the vibration amplitude of a unit in real time in the process of up-conversion or down-conversion adjustment of the compressor, and if the vibration amplitude of the unit exceeds the vibration threshold, correspondingly performing step up-conversion or step down-conversion adjustment on the running frequency of the compressor until the vibration amplitude of the unit is lower than the vibration threshold; recording the vibration amplitude of the unit under different operating frequencies and different operating conditions of the compressor in real time to generate an operating recording chart; and determining the operation frequency which enables the vibration amplitude of the unit to be minimum from the operation recording chart according to the real-time operation condition of the compressor when the unit operates next time, wherein the operation frequency is used as the optimal operation frequency for the operation of the compressor at the current time.

Storage medium-any of various types of memory devices or storage devices. The term "storage medium" is intended to include: mounting media such as CD-ROM, floppy disk, or tape devices; computer system memory or random access memory such as DRAM, DDR RAM, SRAM, EDO RAM, lanbas (Rambus) RAM, etc.; non-volatile memory, such as flash memory, magnetic media (e.g., hard disk or optical storage); registers or other similar types of memory elements, etc. The storage medium may also include other types of memory or combinations thereof. In addition, the storage medium may be located in a first computer system in which the program is executed, or may be located in a different second computer system connected to the first computer system through a network (such as the internet). The second computer system may provide program instructions to the first computer for execution. The term "storage medium" may include two or more storage media residing in different locations, e.g., in different computer systems connected by a network. The storage medium may store program instructions (e.g., embodied as a computer program) that are executable by one or more processors.

Of course, the storage medium provided by the embodiments of the present application contains computer-executable instructions, and the computer-executable instructions are not limited to the frequency adjustment method of the inverter compressor described above, and may also perform related operations in the frequency adjustment method of the inverter compressor provided by any embodiments of the present application.

The frequency adjusting device, the storage medium and the apparatus of the inverter compressor provided in the above embodiments may perform the frequency adjusting method of the inverter compressor provided in any embodiment of the present application, and refer to the frequency adjusting method of the inverter compressor provided in any embodiment of the present application without detailed technical details described in the above embodiments.

The foregoing is considered as illustrative of the preferred embodiments of the invention and the technical principles employed. The present application is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present application has been described in more detail with reference to the above embodiments, the present application is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present application, and the scope of the present application is determined by the scope of the claims.

Claims

1. A method of frequency regulation of an inverter compressor, comprising:

presetting a vibration threshold value for unit operation, wherein the vibration threshold value is set according to a noise threshold value and a vibration amplitude allowable threshold value allowed by the unit operation;

determining the operation frequency which enables the vibration amplitude of the unit to reach the minimum from the operation recording chart according to the real-time operation condition of the compressor when the unit operates next time, and taking the operation frequency as the optimal operation frequency for the operation of the current compressor;

the method comprises the steps of performing step frequency reduction shutdown operation when a compressor is in a set shutdown operation frequency, recording vibration amplitude information corresponding to each frequency point, selecting a shutdown frequency point from each frequency point according to the vibration amplitude information, and stopping the compressor after the shutdown frequency point operates for a set time period when the compressor is shut down next time.

2. The method as claimed in claim 1, wherein the step of detecting the vibration amplitude of the unit in real time during the up-conversion or down-conversion adjustment of the compressor, and if the vibration amplitude of the unit exceeds the vibration threshold, performing the step up-conversion or step down-conversion adjustment of the operating frequency of the compressor until the vibration amplitude of the unit is lower than the vibration threshold comprises:

detecting the vibration amplitude of a unit in real time in the up-conversion adjustment process of the compressor, and comparing the vibration amplitude of the unit detected in real time with the vibration threshold value;

and if the vibration amplitude of the unit exceeds the vibration threshold, performing step frequency-up adjustment of the running frequency of the compressor for a set number of times until the vibration amplitude of the unit is lower than the vibration threshold, wherein each step frequency-up adjustment corresponds to the step frequency-up of the running frequency of the compressor by a frequency adjustment value of a set unit.

3. The method for adjusting the frequency of the inverter compressor according to claim 2, wherein, in the step-up frequency adjustment of the operating frequency of the compressor for a set number of times until the vibration amplitude of the unit is lower than the vibration threshold value, the method further comprises:

step frequency reduction adjustment is carried out on the initial frequency increasing operation frequency for a set number of times until the vibration amplitude of the unit is lower than the vibration threshold value, and each time the step frequency reduction adjustment corresponds to the frequency adjustment value of one set unit of compressor operation frequency reduction;

4. The method as claimed in claim 1, wherein during the up-conversion or down-conversion adjustment of the compressor, the vibration amplitude of the unit is detected in real time, and if the vibration amplitude of the unit exceeds the vibration threshold, the step up-conversion or step down-conversion adjustment of the operating frequency of the compressor is correspondingly performed until the vibration amplitude of the unit is lower than the vibration threshold, further comprising:

5. The method as claimed in claim 4, wherein the step down frequency adjustment of the operating frequency of the compressor is performed for a set number of times until the vibration amplitude of the unit is lower than the vibration threshold, further comprising:

6. The method for adjusting the frequency of the inverter compressor according to claim 1, wherein in the step of recording the vibration amplitudes of the unit under different operating frequencies and different operating conditions of the compressor in real time to generate the operation recording map, the vibration amplitudes of the unit under different operating frequencies and different operating conditions of the compressor are recorded corresponding to each unit operation, so as to generate a corresponding operation recording map, and the newly generated operation recording map is used for replacing an operation recording map obtained by the previous unit operation.

7. The method as claimed in claim 1, wherein the step down shutdown operation is performed when the compressor is in the set shutdown operation frequency, and vibration amplitude information corresponding to each frequency point is recorded, and a shutdown frequency point is selected from the frequency points according to the vibration amplitude information, and the compressor is shut down after operating at the shutdown frequency point for a set time period when next shutdown, comprising:

and determining a shutdown frequency point from all frequency points according to the lowest vibration amplitude and the amplitude regulation time, and when the compressor is shut down next time, operating the compressor for a set time period at the shutdown frequency point and then stopping the compressor.

8. The method according to claim 7, wherein, in determining a shutdown frequency point from among the frequency points according to the lowest vibration amplitude and the amplitude adjustment time, a frequency point with the lowest vibration amplitude having a smallest value is selected from among the frequency points as the shutdown frequency point, and if there are a plurality of frequency points with the lowest vibration amplitude having a smallest value, the frequency point with the shortest amplitude adjustment time is selected as the shutdown frequency point.

9. The frequency adjustment method of the inverter compressor according to claim 7, wherein during the step down frequency adjustment, unit vibration amplitude detection is performed on each frequency point, a unit lowest vibration amplitude corresponding to each frequency point is recorded, if the unit lowest vibration amplitude corresponding to the frequency point is lower than the critical vibration value, the time that the unit vibration amplitude reaches the critical vibration value when the compressor runs at the corresponding frequency point is recorded, and if the unit lowest vibration amplitude corresponding to the frequency point still exceeds the critical vibration value, the corresponding frequency point is marked as a vibration failing point;

correspondingly, in the step of determining the shutdown frequency point from all the frequency points according to the lowest vibration amplitude and the amplitude adjusting time, the frequency points marked as vibration unqualified points are screened in advance.

10. An inverter compressor frequency adjustment device, comprising:

the adjusting module is used for detecting the vibration amplitude of the unit in real time in the process of up-conversion or down-conversion adjustment of the compressor, and if the vibration amplitude of the unit exceeds the vibration threshold, the step up-conversion or step down-conversion adjustment of the running frequency of the compressor is correspondingly carried out until the vibration amplitude of the unit is lower than the vibration threshold;

the operation module is used for determining the operation frequency which enables the vibration amplitude of the unit to reach the minimum from the operation recording chart according to the real-time operation working condition of the compressor when the unit operates next time, and the operation frequency is used as the optimal operation frequency for the operation of the current compressor;

the shutdown module is used for performing step frequency reduction shutdown operation when the compressor is in the set shutdown operation frequency, recording vibration amplitude information corresponding to each frequency point, selecting a shutdown frequency point from each frequency point according to the vibration amplitude information, and stopping the compressor after the shutdown frequency point operates for the set time period when the compressor is shut down next time.

11. An apparatus, comprising:

a memory and one or more processors;

the memory for storing one or more programs;

when executed by the one or more processors, cause the one or more processors to implement the inverter compressor frequency adjustment method of any of claims 1-6.

12. A storage medium containing computer executable instructions for performing the inverter compressor frequency adjustment method of any one of claims 1 to 6 when executed by a computer processor.