CN107449192A - Frequency adjustment method, device and the readable storage medium storing program for executing of frequency-changeable compressor - Google Patents
Frequency adjustment method, device and the readable storage medium storing program for executing of frequency-changeable compressor Download PDFInfo
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- CN107449192A CN107449192A CN201710637800.8A CN201710637800A CN107449192A CN 107449192 A CN107449192 A CN 107449192A CN 201710637800 A CN201710637800 A CN 201710637800A CN 107449192 A CN107449192 A CN 107449192A
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- frequency
- changeable compressor
- weak magnetic
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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
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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
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/021—Inverters therefor
Abstract
The invention discloses a kind of frequency adjustment method of frequency-changeable compressor, the frequency adjustment method of the frequency-changeable compressor includes：Obtain the current operation frequency of frequency-changeable compressor；Determine the frequency range in multiple working frequency sections corresponding to the frequency-changeable compressor；According to the current operation frequency and the frequency range in multiple working frequency sections, the working frequency section that the frequency-changeable compressor is currently at is determined；According to default working frequency section and the corresponding relation of frequency regulations speed, frequency regulations speed corresponding to the working frequency section that the frequency-changeable compressor is currently at is determined, and the running frequency of the frequency-changeable compressor is adjusted according to the frequency regulations speed.The invention also discloses a kind of frequency regulation arrangement of frequency-changeable compressor and computer-readable recording medium.The present invention improves the stability of frequency-changeable compressor operation.
Description
Technical field
The present invention relates to air conditioner technical field, more particularly to a kind of frequency adjustment method of frequency-changeable compressor, device and
Readable storage medium storing program for executing.
Background technology
With the development of science and technology, frequency-changeable compressor is widely applied in air conditioner.For convertible frequency air-conditioner, with ring
The change of border temperature, frequency-changeable compressor need regulating frequency, with from non-weak magnetic workspace raising frequency to weak magnetic workspace, or from weak
Magnetic workspace mixes down to non-weak magnetic workspace.Such as at low ambient temperatures, when convertible frequency air-conditioner runs heating mode, it is necessary to become
Frequency compressor is run with high-frequency, works in weak magnetic state of a control；And in high temperature environments, when convertible frequency air-conditioner runs refrigeration mode
When, it is necessary to frequency-changeable compressor is run with low frequency, work in non-weak magnetic state of a control.However, in frequency-changeable compressor running
In, and not according to the workspace being presently in, targetedly enter line frequency regulation so that the stability of frequency-changeable compressor operation
It is poor.
The content of the invention
It is a primary object of the present invention to propose a kind of frequency adjustment method of frequency-changeable compressor, device and readable storage medium
Matter, it is intended to solve the technical problem of the stability difference of frequency-changeable compressor operation in the prior art.
To achieve the above object, the present invention provides a kind of frequency adjustment method of frequency-changeable compressor, the frequency-changeable compressor
Frequency adjustment method comprise the following steps：
Obtain the current operation frequency of frequency-changeable compressor；
Determine the frequency range in multiple working frequency sections corresponding to the frequency-changeable compressor；
According to the current operation frequency and the frequency range in multiple working frequency sections, the frequency-changeable compressor is determined
The working frequency section being currently at；
According to default working frequency section and the corresponding relation of frequency regulations speed, determine that the frequency-changeable compressor is current
Frequency regulations speed corresponding to the working frequency section being in, and the frequency-changeable compressor is adjusted according to the frequency regulations speed
Running frequency.
Preferably, the working frequency section includes weak magnetic working frequency section, non-weak magnetic working frequency section and mistake
Frequency separation is crossed, described the step of determining the frequency range in multiple working frequency sections corresponding to the frequency-changeable compressor includes：
Calculate the weak magnetic critical frequency of the frequency-changeable compressor；
According to the weak magnetic critical frequency, weak magnetic working frequency section, non-weak magnetic corresponding to the frequency-changeable compressor are determined
Working frequency section and the frequency range in transition frequency section.
Preferably, it is described according to the weak magnetic critical frequency, determine weak magnetic working frequency corresponding to the frequency-changeable compressor
The step of frequency range in section, non-weak magnetic working frequency section and transition frequency section, includes：
The weak magnetic critical frequency and predeterminated frequency are subjected to read group total, first frequency corresponding to acquisition；
The weak magnetic critical frequency and the predeterminated frequency are carried out asking poor calculating, second frequency corresponding to acquisition；
According to the first frequency and the second frequency, weak magnetic working frequency area corresponding to the frequency-changeable compressor is determined
Between, the frequency range in non-weak magnetic working frequency section and transition frequency section；Wherein, the first frequency is the weak magnetic work
The lower limit critical frequency in working frequency section, the second frequency are the upper critical frequency in the non-weak magnetic working frequency section.
Preferably, the step of weak magnetic critical frequency of the calculating frequency-changeable compressor includes：
Obtain corresponding to the frequency-changeable compressor inductive voltage value between weak magnetic voltage threshold and line；
According to inductive voltage value between the weak magnetic voltage threshold and the line, calculate and obtain the weak magnetic critical frequency.
Preferably, it is described according to inductive voltage value between the weak magnetic voltage threshold and the line, calculate and obtain the weak magnetic
The step of critical frequency, includes：
According to calculation formula Fc=V0/V1*K1, calculate and obtain the weak magnetic critical frequency；Wherein, described in the Fc is represented
Weak magnetic critical frequency, the V0Represent the weak magnetic voltage threshold, the V1Represent inductive voltage value between the line, the K1Table
Show the first constant parameter.
Preferably, described the step of obtaining weak magnetic voltage threshold corresponding to the frequency-changeable compressor, includes：
Obtain DC bus-bar voltage corresponding to the frequency-changeable compressor；
According to the DC bus-bar voltage, calculate and obtain the weak magnetic voltage threshold.
Preferably, described according to the DC bus-bar voltage, calculating the step of obtaining the weak magnetic voltage threshold includes：
According to calculation formula V0=V2/K2* λ, calculate and obtain the weak magnetic voltage threshold；Wherein, the V0Represent described weak
Magnetic voltage threshold, the V2Represent the DC bus-bar voltage, the K2The second constant parameter is represented, the λ represents variable ginseng
Number.
Preferably, it is described according to default working frequency section and the corresponding relation of frequency regulations speed, determine the change
Include corresponding to the working frequency section that frequency compressor is currently at the step of frequency regulations speed：
When the frequency-changeable compressor is currently at non-weak magnetic working frequency section, according to the working frequency section and frequency
The corresponding relation of rate regulations speed, it is first rate to determine the frequency regulations speed；
When the frequency-changeable compressor is currently at weak magnetic working frequency section, according to the working frequency section and frequency
The corresponding relation of regulations speed, it is the second speed to determine the frequency regulations speed；
When the frequency-changeable compressor is currently at transition frequency section, adjusted according to the working frequency section and frequency
The corresponding relation of speed, it is third speed to determine the frequency regulations speed；
Wherein, the first rate is more than second speed, and second speed is more than the third speed.
In addition, to achieve the above object, the present invention also proposes a kind of frequency regulation arrangement of frequency-changeable compressor, the frequency conversion
The frequency regulation arrangement of compressor includes：Memory, processor and it is stored on the memory and can be on the processor
The frequency-changeable compressor frequency regulation program of operation, the frequency-changeable compressor frequency are realized when adjusting program by the computing device
Following steps：
Obtain the current operation frequency of frequency-changeable compressor；
Determine the frequency range in multiple working frequency sections corresponding to the frequency-changeable compressor；
According to the current operation frequency and the frequency range in multiple working frequency sections, the frequency-changeable compressor is determined
The working frequency section being currently at；
According to default working frequency section and the corresponding relation of frequency regulations speed, determine that the frequency-changeable compressor is current
Frequency regulations speed corresponding to the working frequency section being in, and the frequency-changeable compressor is adjusted according to the frequency regulations speed
Running frequency.
In addition, to achieve the above object, the present invention also proposes a kind of computer-readable recording medium, described computer-readable
Frequency-changeable compressor frequency regulation program is stored with storage medium, the frequency-changeable compressor frequency regulation program is executed by processor
Shi Shixian following steps：
Obtain the current operation frequency of frequency-changeable compressor；
Determine the frequency range in multiple working frequency sections corresponding to the frequency-changeable compressor；
According to the current operation frequency and the frequency range in multiple working frequency sections, the frequency-changeable compressor is determined
The working frequency section being currently at；
According to default working frequency section and the corresponding relation of frequency regulations speed, determine that the frequency-changeable compressor is current
Frequency regulations speed corresponding to the working frequency section being in, and the frequency-changeable compressor is adjusted according to the frequency regulations speed
Running frequency.
Scheme proposed by the present invention, by obtaining the current operation frequency of frequency-changeable compressor, and determine frequency-changeable compressor
The frequency range in corresponding multiple working frequency sections, so that it is determined that the working frequency section that frequency-changeable compressor is currently at, so
Afterwards according to default working frequency section and the corresponding relation of frequency regulations speed, the work that frequency-changeable compressor is currently at is determined
Frequency regulations speed corresponding to frequency separation, the running frequency of frequency-changeable compressor is adjusted according to the frequency regulations speed, so as to real
The working frequency section being currently at according to frequency-changeable compressor is showed, has targetedly been carried out using corresponding frequency regulations speed
Frequency is adjusted, and this improves the stability of frequency-changeable compressor operation.
Brief description of the drawings
Fig. 1 is the structural representation of the hardware running environment for the air conditioner that scheme of the embodiment of the present invention is related to；
Fig. 2 is the schematic flow sheet of the frequency adjustment method first embodiment of frequency-changeable compressor of the present invention；
Fig. 3 is to determine that the frequency-changeable compressor is corresponding in the frequency adjustment method second embodiment of frequency-changeable compressor of the present invention
Multiple working frequency sections frequency range refinement schematic flow sheet；
Fig. 4 is the schematic diagram of raising frequency speed corresponding to each working frequency section of frequency-changeable compressor of the present invention；
Fig. 5 is the schematic diagram of frequency reducing speed corresponding to each working frequency section of frequency-changeable compressor of the present invention.
The realization, functional characteristics and advantage of the object of the invention will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
The solution of the embodiment of the present invention is mainly：By obtaining the current operation frequency of frequency-changeable compressor, and really
The frequency range in multiple working frequency sections corresponding to frequency-changeable compressor is determined, so that it is determined that the work that frequency-changeable compressor is currently at
Frequency separation, then according to default working frequency section and the corresponding relation of frequency regulations speed, determine that frequency-changeable compressor is worked as
Frequency regulations speed corresponding to the preceding working frequency section being in, the operation of frequency-changeable compressor is adjusted according to the frequency regulations speed
Frequency, it is achieved thereby that the working frequency section being currently at according to frequency-changeable compressor, targetedly using corresponding frequency
Regulations speed enters line frequency regulation.By the technical scheme of the embodiment of the present invention, solves the stability that frequency-changeable compressor is run
The problem of poor.
Reference picture 1, Fig. 1 are the structural representation of the hardware running environment for the convertible frequency air-conditioner that scheme of the embodiment of the present invention is related to
Figure.
In follow-up description, the suffix using such as " module ", " part " or " unit " for representing element is only
Be advantageous to the explanation of the present invention, itself there is no a specific meaning.Therefore, " module ", " part " or " unit " can mix
Ground uses.
As shown in figure 1, the convertible frequency air-conditioner can include：Processor 1001, such as CPU, communication bus 1002, user interface
1003, network interface 1004, memory 1005.Wherein, communication bus 1002 is used to realize the connection communication between these components.
User interface 1003 can include display screen (Display), input block such as keyboard (Keyboard), optional user interface
1003 can also include wireline interface, the wave point of standard.Network interface 1004 can optionally connect including the wired of standard
Mouth, wave point (such as WI-FI interfaces).Memory 1005 can be high-speed RAM memory or stable memory
(non-volatile memory), such as magnetic disk storage.Memory 1005 optionally can also be independently of aforementioned processor
1001 storage device.
It will be understood by those skilled in the art that the convertible frequency air-conditioner structure shown in Fig. 1 does not form the limit to convertible frequency air-conditioner
It is fixed, it can include than illustrating more or less parts, either combine some parts or different parts arrangement.
As shown in figure 1, it can lead to as in a kind of memory 1005 of computer-readable storage medium including operating system, network
Believe module, Subscriber Interface Module SIM and frequency-changeable compressor frequency regulation program.
Processor 1001, memory 1005 in convertible frequency air-conditioner of the present invention can be arranged on the frequency regulation of frequency-changeable compressor
In device, the frequency regulation arrangement of the frequency-changeable compressor calls the frequency conversion pressure stored in memory 1005 by processor 1001
Contracting unit frequency adjusts program, and performs following operate：
Obtain the current operation frequency of frequency-changeable compressor；
Determine the frequency range in multiple working frequency sections corresponding to the frequency-changeable compressor；
According to the current operation frequency and the frequency range in multiple working frequency sections, the frequency-changeable compressor is determined
The working frequency section being currently at；
According to default working frequency section and the corresponding relation of frequency regulations speed, determine that the frequency-changeable compressor is current
Frequency regulations speed corresponding to the working frequency section being in, and the frequency-changeable compressor is adjusted according to the frequency regulations speed
Running frequency.
Further, the working frequency section include weak magnetic working frequency section, non-weak magnetic working frequency section and
Transition frequency section, processor 1001 can call the frequency-changeable compressor frequency stored in memory 1005 to adjust program, also hold
Row is following to be operated：
Calculate the weak magnetic critical frequency of the frequency-changeable compressor；
According to the weak magnetic critical frequency, weak magnetic working frequency section, non-weak magnetic corresponding to the frequency-changeable compressor are determined
Working frequency section and the frequency range in transition frequency section.
Further, processor 1001 can call the frequency-changeable compressor frequency stored in memory 1005 to adjust program,
Also perform following operate：
The weak magnetic critical frequency and predeterminated frequency are subjected to read group total, first frequency corresponding to acquisition；
The weak magnetic critical frequency and the predeterminated frequency are carried out asking poor calculating, second frequency corresponding to acquisition；
According to the first frequency and the second frequency, weak magnetic working frequency area corresponding to the frequency-changeable compressor is determined
Between, the frequency range in non-weak magnetic working frequency section and transition frequency section；Wherein, the first frequency is the weak magnetic work
The lower limit critical frequency in working frequency section, the second frequency are the upper critical frequency in the non-weak magnetic working frequency section.
Further, processor 1001 can call the frequency-changeable compressor frequency stored in memory 1005 to adjust program,
Also perform following operate：
Obtain corresponding to the frequency-changeable compressor inductive voltage value between weak magnetic voltage threshold and line；
According to inductive voltage value between the weak magnetic voltage threshold and the line, calculate and obtain the weak magnetic critical frequency.
Further, processor 1001 can call the frequency-changeable compressor frequency stored in memory 1005 to adjust program,
Also perform following operate：
According to calculation formula Fc=V0/V1*K1, calculate and obtain the weak magnetic critical frequency；Wherein, described in the Fc is represented
Weak magnetic critical frequency, the V0Represent the weak magnetic voltage threshold, the V1Represent inductive voltage value between the line, the K1Table
Show the first constant parameter.
Further, processor 1001 can call the frequency-changeable compressor frequency stored in memory 1005 to adjust program,
Also perform following operate：
Obtain DC bus-bar voltage corresponding to the frequency-changeable compressor；
According to the DC bus-bar voltage, calculate and obtain the weak magnetic voltage threshold.
Further, processor 1001 can call the frequency-changeable compressor frequency stored in memory 1005 to adjust program,
Also perform following operate：
According to calculation formula V0=V2/K2* λ, calculate and obtain the weak magnetic voltage threshold；Wherein, the V0Represent described weak
Magnetic voltage threshold, the V2Represent the DC bus-bar voltage, the K2The second constant parameter is represented, the λ represents variable ginseng
Number.
Further, processor 1001 can call the frequency-changeable compressor frequency stored in memory 1005 to adjust program,
Also perform following operate：
When the frequency-changeable compressor is currently at non-weak magnetic working frequency section, according to the working frequency section and frequency
The corresponding relation of rate regulations speed, it is first rate to determine the frequency regulations speed；
When the frequency-changeable compressor is currently at weak magnetic working frequency section, according to the working frequency section and frequency
The corresponding relation of regulations speed, it is the second speed to determine the frequency regulations speed；
When the frequency-changeable compressor is currently at transition frequency section, adjusted according to the working frequency section and frequency
The corresponding relation of speed, it is third speed to determine the frequency regulations speed；
Wherein, the first rate is more than second speed, and second speed is more than the third speed.
The present embodiment by obtaining the current operation frequency of frequency-changeable compressor, and determines frequency conversion pressure by such scheme
The frequency range in multiple working frequency sections corresponding to contracting machine, so that it is determined that the working frequency area that frequency-changeable compressor is currently at
Between, then according to default working frequency section and the corresponding relation of frequency regulations speed, determine that frequency-changeable compressor is currently at
Working frequency section corresponding to frequency regulations speed, according to the frequency regulations speed adjust frequency-changeable compressor running frequency,
It is achieved thereby that the working frequency section being currently at according to frequency-changeable compressor, targetedly using corresponding frequency regulation speed
Rate enters line frequency regulation, and this improves the stability of frequency-changeable compressor operation.
Based on above-mentioned hardware configuration, the frequency adjustment method embodiment of frequency-changeable compressor of the present invention is proposed.
Reference picture 2, Fig. 2 are the schematic flow sheet of the frequency adjustment method first embodiment of frequency-changeable compressor of the present invention.
In the first embodiment, the frequency adjustment method of the frequency-changeable compressor comprises the following steps：
Step S10, obtain the current operation frequency of frequency-changeable compressor；
Step S20, determine the frequency range in multiple working frequency sections corresponding to the frequency-changeable compressor；
Step S30, according to the current operation frequency and the frequency range in multiple working frequency sections, determine the change
The working frequency section that frequency compressor is currently at；
Step S40, according to default working frequency section and the corresponding relation of frequency regulations speed, determine the frequency conversion pressure
Frequency regulations speed corresponding to the working frequency section that contracting machine is currently at, and the change is adjusted according to the frequency regulations speed
The running frequency of frequency compressor.
With the development of science and technology, frequency-changeable compressor is widely applied in air conditioner.For convertible frequency air-conditioner, with ring
The change of border temperature, frequency-changeable compressor are needed from non-weak magnetic workspace raising frequency to weak magnetic workspace, or are dropped from weak magnetic workspace
Frequency arrives non-weak magnetic workspace.Such as at low ambient temperatures, when convertible frequency air-conditioner run heating mode when, it is necessary to frequency-changeable compressor with
High-frequency is run, and works in weak magnetic state of a control；And in high temperature environments, when convertible frequency air-conditioner runs refrigeration mode, it is necessary to become
Frequency compressor is run with low frequency, works in non-weak magnetic state of a control.However, in frequency-changeable compressor running, not root
According to the workspace being presently in, targetedly enter line frequency regulation so that the less stable of frequency-changeable compressor operation.
In order to improve the stability that frequency-changeable compressor enters line frequency regulation, the present invention proposes a kind of frequency of frequency-changeable compressor
Rate adjusting method.In the present embodiment, by taking convertible frequency air-conditioner as an example, the frequency adjustment method of frequency-changeable compressor of the present invention is carried out in detail
Explanation.
In the present embodiment, after convertible frequency air-conditioner is started shooting, in its frequency-changeable compressor running, convertible frequency air-conditioner in real time or
Timing detects to the running frequency of frequency-changeable compressor, obtains the current operation frequency of frequency-changeable compressor.
Meanwhile convertible frequency air-conditioner determines the frequency range in multiple working frequency sections corresponding to frequency-changeable compressor.For example, in advance
Working frequency section corresponding to setting frequency-changeable compressor includes weak magnetic working frequency section, non-weak magnetic working frequency section and mistake
Frequency separation is crossed, then determines frequency range [A1, B1], non-weak magnetic working frequency section corresponding to weak magnetic working frequency section respectively
Frequency range [A3, B3] corresponding to corresponding frequency range [A2, B2], transition frequency section.
It should be noted that the frequency range in each working frequency section can be according to the current operation feelings of frequency-changeable compressor
Condition is determined, and for frequency-changeable compressor under different running situation, each working frequency section corresponds to different frequency ranges；Remove
Beyond this, the frequency range in each working frequency section can also be pre-set fixed value.
So, according to the frequency range in each working frequency section, and the current operation frequency of frequency-changeable compressor, will become
The current operation frequency of frequency compressor and the frequency range in each working frequency section are contrasted, it is possible to determine that frequency conversion is compressed
The working frequency section that the current operation frequency of machine is in.For example, still by taking the above-mentioned example enumerated as an example, if frequency-changeable compressor
Current operation frequency is located in the range of [A1, B1], it is determined that the current operation frequency of frequency-changeable compressor is in weak magnetic working frequency
Section；If the current operation frequency of frequency-changeable compressor is located in the range of [A2, B2], it is determined that the current operation frequency of frequency-changeable compressor
Rate is in non-weak magnetic working frequency section；If the current operation frequency of frequency-changeable compressor is located in the range of [A3, B3], it is determined that becomes
The current operation frequency of frequency compressor is in transition frequency section.
In the present embodiment, the corresponding relation of working frequency section and frequency regulations speed is also previously provided with, wherein, it is different
Working frequency section, corresponding different frequency regulations speed.For example, still by taking the above-mentioned example enumerated as an example, frequency-changeable compressor
Corresponding working frequency section includes weak magnetic working frequency section, non-weak magnetic working frequency section and transition frequency section, weak
Magnetic working frequency section respective frequencies regulations speed v1, non-weak magnetic working frequency section respective frequencies regulations speed v2, transition frequency
Rate section respective frequencies regulations speed v3.
After the working frequency section that the current operation frequency that frequency-changeable compressor is determined is in, according to working frequency area
Between corresponding relation with frequency regulations speed, determine that frequency corresponding to the working frequency section that current operation frequency is in is adjusted
Speed.
For example, still by taking the above-mentioned example enumerated as an example, however, it is determined that the current operation frequency of frequency-changeable compressor is in weak magnetic work
Working frequency section, then according to weak magnetic working frequency section respective frequencies regulations speed v1, determine that frequency-changeable compressor currently enters line frequency
Frequency regulations speed corresponding to rate regulation is frequency regulations speed v1；If it is determined that the current operation frequency of frequency-changeable compressor is in non-
Weak magnetic working frequency section, then according to non-weak magnetic working frequency section respective frequencies regulations speed v2, determine that frequency-changeable compressor is worked as
Frequency regulations speed corresponding to the regulation of advance line frequency is frequency regulations speed v2；If it is determined that the current operation frequency of frequency-changeable compressor
Rate is in transition frequency section, then according to transition frequency section respective frequencies regulations speed v3, determines frequency-changeable compressor when advance
Frequency regulations speed corresponding to line frequency regulation is frequency regulations speed v3.
Afterwards, the frequency according to corresponding to the working frequency section that the current operation frequency of identified frequency-changeable compressor is in
Regulations speed, the running frequency of frequency-changeable compressor is adjusted with the frequency regulations speed.Such as, however, it is determined that frequency-changeable compressor is worked as
The working frequency section that preceding running frequency is in is weak magnetic working frequency section, and corresponding frequency regulations speed is frequency regulation speed
Rate v1, then the running frequency of frequency-changeable compressor is adjusted according to frequency regulations speed v1；If it is determined that the current operation of frequency-changeable compressor
The working frequency section that frequency is in is non-weak magnetic working frequency section, and corresponding frequency regulations speed is frequency regulations speed
V2, then the running frequency of frequency-changeable compressor is adjusted according to frequency regulations speed v2；If it is determined that the current operation frequency of frequency-changeable compressor
The working frequency section that rate is in is transition frequency section, and corresponding frequency regulations speed is frequency regulations speed v3, then basis
Frequency regulations speed v3 adjusts the running frequency of frequency-changeable compressor.
The scheme that the present embodiment provides, by obtaining the current operation frequency of frequency-changeable compressor, and determine frequency conversion compression
The frequency range in multiple working frequency sections corresponding to machine, so that it is determined that the working frequency section that frequency-changeable compressor is currently at,
Then according to default working frequency section and the corresponding relation of frequency regulations speed, the work that frequency-changeable compressor is currently at is determined
Frequency regulations speed corresponding to working frequency section, the running frequency of frequency-changeable compressor is adjusted according to the frequency regulations speed, so as to
The working frequency section being currently at according to frequency-changeable compressor is realized, is targetedly entered using corresponding frequency regulations speed
Line frequency is adjusted, and this improves the stability of frequency-changeable compressor operation.
Further, as shown in figure 3, proposing the frequency adjustment method the of frequency-changeable compressor of the present invention based on first embodiment
Two embodiments, in the present embodiment, the working frequency section of frequency-changeable compressor include weak magnetic working frequency section, the work of non-weak magnetic
Frequency separation and transition frequency section, the step S20 include：
Step S21, calculate the weak magnetic critical frequency of the frequency-changeable compressor；
Step S22, according to the weak magnetic critical frequency, determine weak magnetic working frequency area corresponding to the frequency-changeable compressor
Between, the frequency range in non-weak magnetic working frequency section and transition frequency section.
In the present embodiment, in order to ensure that frequency-changeable compressor enters stability when line frequency is adjusted, it is determined that frequency-changeable compressor
During the frequency range in corresponding multiple working frequency sections, the weak magnetic critical frequency of frequency-changeable compressor, Ran Hougen are calculated first
According to the weak magnetic critical frequency of frequency-changeable compressor, to determine the weak magnetic working frequency section of frequency-changeable compressor, non-weak magnetic working frequency
Section and the frequency range in transition frequency section.
Alternatively, the step S21 includes：
Step a, obtain corresponding to the frequency-changeable compressor inductive voltage value between weak magnetic voltage threshold and line；
Step b, according to inductive voltage value between the weak magnetic voltage threshold and the line, calculate and obtain the critical frequency of weak magnetic
Rate.
During compressor operating, inductive voltage value between its corresponding weak magnetic voltage threshold and line is obtained, wherein, it is weak
Magnetic voltage threshold is represented with phase voltage peak value, when output voltage exceedes weak magnetic voltage threshold, is added by reducing direct-axis current
Deep weak magnetic, reduce output voltage；Induced voltage between line when inductive voltage value operates in 1000 revolutions per minute for frequency-changeable compressor between line
Virtual value.
Alternatively, the step a includes：
Step a1, obtain DC bus-bar voltage corresponding to the frequency-changeable compressor；
Step a2, according to the DC bus-bar voltage, calculate and obtain the weak magnetic voltage threshold.
In order to obtain weak magnetic voltage threshold, in the present embodiment, it is necessary to obtain frequency conversion pressure in frequency-changeable compressor running
DC bus-bar voltage corresponding to contracting machine, weak magnetic voltage threshold is obtained to calculate according to the DC bus-bar voltage.
Specifically, the step a2 includes：According to calculation formula V0=V2/K2* λ, calculate and obtain the weak magnetic voltage threshold
Value；Wherein, the V0Represent the weak magnetic voltage threshold, the V2Represent the DC bus-bar voltage, the K2Represent that second is normal
Parameter is measured, the λ represents variable parameter.
Assuming that weak magnetic voltage threshold V0Represent, DC bus-bar voltage V2Represent, getting corresponding to frequency-changeable compressor
DC bus-bar voltage V2Afterwards, according to calculation formula V0=V2/K2* λ, calculate and obtain weak magnetic voltage threshold V0, wherein, K2Represent the
One constant parameter, λ represent variable parameter.Preferably, K2Value is 31/2, λ spans are [0.90,1.05].
Getting between weak magnetic voltage threshold and line after inductive voltage value, sensing according between weak magnetic voltage threshold and line
Magnitude of voltage, calculate and obtain weak magnetic critical frequency.
Specifically, the step b includes：According to calculation formula Fc=V0/V1*K1, calculate and obtain the critical frequency of weak magnetic
Rate；Wherein, the Fc represents the weak magnetic critical frequency, the V0Represent the weak magnetic voltage threshold, the V1Represent the line
Between inductive voltage value, the K1Represent the first constant parameter.
Assuming that weak magnetic critical frequency is represented with Fc, weak magnetic voltage threshold V0Represent, inductive voltage value V between line1Represent,
Then getting weak magnetic voltage threshold V0And inductive voltage value V between line1Afterwards, according to calculation formula Fc=V0/V1*K1, calculating obtains
Obtain weak magnetic critical frequency Fc.Wherein, K1Represent the first constant parameter, it is preferable that K1Value 20.41.
Alternatively, the step S22 includes：
Step c, the weak magnetic critical frequency and predeterminated frequency are subjected to read group total, first frequency corresponding to acquisition；
Step d, the weak magnetic critical frequency and the predeterminated frequency are carried out to ask poor calculating, the second frequency corresponding to acquisition
Rate；
Step e, according to the first frequency and the second frequency, determine that weak magnetic corresponding to the frequency-changeable compressor works
The frequency range of frequency separation, non-weak magnetic working frequency section and transition frequency section；Wherein, the first frequency is described
The lower limit critical frequency in weak magnetic working frequency section, the second frequency are the upper critical in the non-weak magnetic working frequency section
Frequency.
In the present embodiment, a predeterminated frequency Fr is also previously provided with, predeterminated frequency Fr concrete numerical value can be according to reality
Situation is flexibly set, and is not restricted herein., will be weak after the weak magnetic critical frequency Fc for obtaining frequency-changeable compressor is calculated
Magnetic critical frequency Fc and predeterminated frequency Fr carries out read group total, first frequency Fc+Fr corresponding to acquisition；And by weak magnetic critical frequency
Fc and predeterminated frequency Fr carries out asking poor calculating, second frequency Fc-Fr corresponding to acquisition.Then, according to first frequency Fc+Fr and
Two frequency Fc-Fr, first frequency Fc+Fr is defined as to the lower limit critical frequency and transition frequency in weak magnetic working frequency section
The upper critical frequency in section；By second frequency Fc-Fr be defined as non-weak magnetic working frequency section upper critical frequency and
The lower limit critical frequency in transition frequency section, so that it is determined that go out weak magnetic working frequency section, non-weak magnetic working frequency section and
The frequency range in transition frequency section：
The frequency range in weak magnetic working frequency section is first frequency Fc+Fr to maximum running frequency；
The frequency range in non-weak magnetic working frequency section is 0Hz to second frequency Fc-Fr；
The frequency range in transition frequency section is second frequency Fc-Fr to first frequency Fc+Fr.
Alternatively, the step S40 includes：
Step f, when the frequency-changeable compressor is currently at non-weak magnetic working frequency section, according to the working frequency area
Between corresponding relation with frequency regulations speed, it is first rate to determine the frequency regulations speed；
Step g, when the frequency-changeable compressor is currently at weak magnetic working frequency section, according to the working frequency section
With the corresponding relation of frequency regulations speed, it is the second speed to determine the frequency regulations speed；
Step h, when the frequency-changeable compressor is currently at transition frequency section, according to the working frequency section and frequency
The corresponding relation of rate regulations speed, it is third speed to determine the frequency regulations speed；
Wherein, the first rate is more than second speed, and second speed is more than the third speed.
In the present embodiment, in the corresponding relation of default working frequency section and frequency regulations speed, preset non-
Frequency regulations speed corresponding to weak magnetic working frequency section is first rate, frequency regulation speed corresponding to weak magnetic working frequency section
Rate is the second speed, and frequency regulations speed corresponding to transition frequency section is third speed.Wherein, first rate is more than the second speed
Rate, and the second speed is more than third speed, namely first rate ＞ the second speed ＞ third speeds.
In the work it is determined that after the working frequency section that frequency-changeable compressor is currently at, being currently at according to frequency-changeable compressor
Working frequency section, it is determined that corresponding frequency regulations speed.Specifically, when frequency-changeable compressor is currently at non-weak magnetic working frequency area
Between when, according to working frequency section and the corresponding relation of frequency regulations speed, it is determined that corresponding frequency regulations speed is the first speed
Rate；When frequency-changeable compressor is currently at weak magnetic working frequency section, according to working frequency section and pair of frequency regulations speed
It should be related to, it is determined that corresponding frequency regulations speed is the second speed；When frequency-changeable compressor is currently at transition frequency section, root
According to working frequency section and the corresponding relation of frequency regulations speed, it is determined that corresponding frequency regulations speed is third speed.Afterwards,
According to identified frequency regulations speed, the running frequency of frequency-changeable compressor is adjusted.
It is understood that frequency regulations speed includes raising frequency speed and frequency reducing speed, in the present embodiment, for same
For individual working frequency section, its corresponding raising frequency speed and frequency reducing speed can be identical rate value, or different
Rate value.As shown in Figure 4 and Figure 5, in Fig. 4, raising frequency speed corresponding to non-weak magnetic working frequency section is the first raising frequency speed
Rate, raising frequency speed corresponding to weak magnetic working frequency section are the second raising frequency speed, and raising frequency speed is corresponding to transition frequency section
3rd raising frequency speed.Wherein, the raising frequency speed of first raising frequency speed ＞ the second raising frequency speed ＞ the 3rd.In Figure 5, non-weak magnetic work
Frequency reducing speed corresponding to frequency separation is the first frequency reducing speed, and frequency reducing speed corresponding to weak magnetic working frequency section is the second frequency reducing
Speed, frequency reducing speed corresponding to transition frequency section are the 3rd frequency reducing speed.Wherein, first frequency reducing speed ＞ the second frequency reducing speed
The frequency reducing speed of ＞ the 3rd.
It should be noted that the first raising frequency speed and the first frequency reducing speed can be identical value, or different value；Together
Reason, the second raising frequency speed and the second frequency reducing speed can be identical value, or different value；3rd raising frequency speed and the 3rd drop
Frequency speed can be identical value, or different value.
The scheme that the present embodiment provides, when it is determined that frequency-changeable compressor is currently at non-weak magnetic working frequency section, according to
The running frequency of corresponding first rate regulation frequency-changeable compressor；When it is determined that frequency-changeable compressor is currently at weak magnetic working frequency area
Between when, according to the running frequency of corresponding second rate adaptation frequency-changeable compressor；When it is determined that frequency-changeable compressor is currently at transition
During frequency separation, the running frequency of frequency-changeable compressor is adjusted according to corresponding third speed, namely is realized in different work frequencies
Rate section, the running frequency of frequency-changeable compressor is adjusted using different frequency regulations speeds, this improves frequency-changeable compressor
The stability of operation.
In addition, the embodiment of the present invention also proposes a kind of computer-readable recording medium, the computer-readable recording medium
On be stored with frequency-changeable compressor frequency regulation program, frequency-changeable compressor frequency regulation program is realized such as when being executed by processor
Lower operation：
Obtain the current operation frequency of frequency-changeable compressor；
Determine the frequency range in multiple working frequency sections corresponding to the frequency-changeable compressor；
According to the current operation frequency and the frequency range in multiple working frequency sections, the frequency-changeable compressor is determined
The working frequency section being currently at；
According to default working frequency section and the corresponding relation of frequency regulations speed, determine that the frequency-changeable compressor is current
Frequency regulations speed corresponding to the working frequency section being in, and the frequency-changeable compressor is adjusted according to the frequency regulations speed
Running frequency.
Further, the working frequency section include weak magnetic working frequency section, non-weak magnetic working frequency section and
Transition frequency section, the frequency-changeable compressor frequency regulation program also realize following operation when being executed by processor：
Calculate the weak magnetic critical frequency of the frequency-changeable compressor；
According to the weak magnetic critical frequency, weak magnetic working frequency section, non-weak magnetic corresponding to the frequency-changeable compressor are determined
Working frequency section and the frequency range in transition frequency section.
Further, following operation is also realized when the frequency-changeable compressor frequency regulation program is executed by processor：
The weak magnetic critical frequency and predeterminated frequency are subjected to read group total, first frequency corresponding to acquisition；
The weak magnetic critical frequency and the predeterminated frequency are carried out asking poor calculating, second frequency corresponding to acquisition；
According to the first frequency and the second frequency, weak magnetic working frequency area corresponding to the frequency-changeable compressor is determined
Between, the frequency range in non-weak magnetic working frequency section and transition frequency section；Wherein, the first frequency is the weak magnetic work
The lower limit critical frequency in working frequency section, the second frequency are the upper critical frequency in the non-weak magnetic working frequency section.
Further, following operation is also realized when the frequency-changeable compressor frequency regulation program is executed by processor：
Obtain corresponding to the frequency-changeable compressor inductive voltage value between weak magnetic voltage threshold and line；
According to inductive voltage value between the weak magnetic voltage threshold and the line, calculate and obtain the weak magnetic critical frequency.
Further, following operation is also realized when the frequency-changeable compressor frequency regulation program is executed by processor：
According to calculation formula Fc=V0/V1*K1, calculate and obtain the weak magnetic critical frequency；Wherein, described in the Fc is represented
Weak magnetic critical frequency, the V0Represent the weak magnetic voltage threshold, the V1Represent inductive voltage value between the line, the K1Table
Show the first constant parameter.
Further, following operation is also realized when the frequency-changeable compressor frequency regulation program is executed by processor：
Obtain DC bus-bar voltage corresponding to the frequency-changeable compressor；
According to the DC bus-bar voltage, calculate and obtain the weak magnetic voltage threshold.
Further, following operation is also realized when the frequency-changeable compressor frequency regulation program is executed by processor：
According to calculation formula V0=V2/K2* λ, calculate and obtain the weak magnetic voltage threshold；Wherein, the V0Represent described weak
Magnetic voltage threshold, the V2Represent the DC bus-bar voltage, the K2The second constant parameter is represented, the λ represents variable ginseng
Number.
Further, following operation is also realized when the frequency-changeable compressor frequency regulation program is executed by processor：
When the frequency-changeable compressor is currently at non-weak magnetic working frequency section, according to the working frequency section and frequency
The corresponding relation of rate regulations speed, it is first rate to determine the frequency regulations speed；
When the frequency-changeable compressor is currently at weak magnetic working frequency section, according to the working frequency section and frequency
The corresponding relation of regulations speed, it is the second speed to determine the frequency regulations speed；
When the frequency-changeable compressor is currently at transition frequency section, adjusted according to the working frequency section and frequency
The corresponding relation of speed, it is third speed to determine the frequency regulations speed；
Wherein, the first rate is more than second speed, and second speed is more than the third speed.
It should be noted that herein, term " comprising ", "comprising" or its any other variant are intended to non-row
His property includes, so that process, method, article or system including a series of elements not only include those key elements, and
And also include the other element being not expressly set out, or also include for this process, method, article or system institute inherently
Key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that including this
Other identical element also be present in the process of key element, method, article or system.
The embodiments of the present invention are for illustration only, do not represent the quality of embodiment.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on such understanding, technical scheme is substantially done to prior art in other words
Going out the part of contribution can be embodied in the form of software product, and the computer software product is stored in one as described above
In storage medium (such as ROM/RAM, magnetic disc, CD), including some instructions to cause a station terminal equipment (can be mobile phone,
Computer, server, or network equipment etc.) perform method described in each embodiment of the present invention.
The preferred embodiments of the present invention are these are only, are not intended to limit the scope of the invention, it is every to utilize this hair
The equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (10)
- A kind of 1. frequency adjustment method of frequency-changeable compressor, it is characterised in that the frequency adjustment method bag of the frequency-changeable compressor Include following steps：Obtain the current operation frequency of frequency-changeable compressor；Determine the frequency range in multiple working frequency sections corresponding to the frequency-changeable compressor；According to the current operation frequency and the frequency range in multiple working frequency sections, determine that the frequency-changeable compressor is current The working frequency section being in；According to default working frequency section and the corresponding relation of frequency regulations speed, determine that the frequency-changeable compressor is currently at Working frequency section corresponding to frequency regulations speed, and adjust according to the frequency regulations speed fortune of the frequency-changeable compressor Line frequency.
- 2. the frequency adjustment method of frequency-changeable compressor as claimed in claim 1, it is characterised in that the working frequency section bag Weak magnetic working frequency section, non-weak magnetic working frequency section and transition frequency section are included, it is described to determine the frequency-changeable compressor The step of frequency range in corresponding multiple working frequency sections, includes：Calculate the weak magnetic critical frequency of the frequency-changeable compressor；According to the weak magnetic critical frequency, weak magnetic working frequency section corresponding to the frequency-changeable compressor, the work of non-weak magnetic are determined Frequency separation and the frequency range in transition frequency section.
- 3. the frequency adjustment method of frequency-changeable compressor as claimed in claim 2, it is characterised in that described to be faced according to the weak magnetic Boundary's frequency, determine weak magnetic working frequency section corresponding to the frequency-changeable compressor, non-weak magnetic working frequency section and transition frequency The step of frequency range in rate section, includes：The weak magnetic critical frequency and predeterminated frequency are subjected to read group total, first frequency corresponding to acquisition；The weak magnetic critical frequency and the predeterminated frequency are carried out asking poor calculating, second frequency corresponding to acquisition；According to the first frequency and the second frequency, determine weak magnetic working frequency section corresponding to the frequency-changeable compressor, The frequency range in non-weak magnetic working frequency section and transition frequency section；Wherein, the first frequency works for the weak magnetic The lower limit critical frequency of frequency separation, the second frequency are the upper critical frequency in the non-weak magnetic working frequency section.
- 4. the frequency adjustment method of frequency-changeable compressor as claimed in claim 2, it is characterised in that described to calculate the frequency conversion pressure The step of weak magnetic critical frequency of contracting machine, includes：Obtain corresponding to the frequency-changeable compressor inductive voltage value between weak magnetic voltage threshold and line；According to inductive voltage value between the weak magnetic voltage threshold and the line, calculate and obtain the weak magnetic critical frequency.
- 5. the frequency adjustment method of frequency-changeable compressor as claimed in claim 4, it is characterised in that described according to weak magnetic electricity Inductive voltage value between threshold value and the line is pressed, calculating the step of obtaining the weak magnetic critical frequency includes：According to calculation formula Fc=V0/V1*K1, calculate and obtain the weak magnetic critical frequency；Wherein, the Fc represents the weak magnetic Critical frequency, the V0Represent the weak magnetic voltage threshold, the V1Represent inductive voltage value between the line, the K1Represent the One constant parameter.
- 6. the frequency adjustment method of frequency-changeable compressor as claimed in claim 4, it is characterised in that described to obtain the frequency conversion pressure Include corresponding to contracting machine the step of weak magnetic voltage threshold：Obtain DC bus-bar voltage corresponding to the frequency-changeable compressor；According to the DC bus-bar voltage, calculate and obtain the weak magnetic voltage threshold.
- 7. the frequency adjustment method of frequency-changeable compressor as claimed in claim 6, it is characterised in that described female according to the direct current Line voltage, calculating the step of obtaining the weak magnetic voltage threshold includes：According to calculation formula V0=V2/K2* λ, calculate and obtain the weak magnetic voltage threshold；Wherein, the V0Represent the weak magnetic electricity Press threshold value, the V2Represent the DC bus-bar voltage, the K2The second constant parameter is represented, the λ represents variable parameter.
- 8. the frequency adjustment method of the frequency-changeable compressor as described in claim any one of 2-7, it is characterised in that the basis is pre- If working frequency section and frequency regulations speed corresponding relation, determine the working frequency that the frequency-changeable compressor is currently at Include corresponding to section the step of frequency regulations speed：When the frequency-changeable compressor is currently at non-weak magnetic working frequency section, adjusted according to the working frequency section and frequency The corresponding relation of speed is saved, it is first rate to determine the frequency regulations speed；When the frequency-changeable compressor is currently at weak magnetic working frequency section, adjusted according to the working frequency section and frequency The corresponding relation of speed, it is the second speed to determine the frequency regulations speed；When the frequency-changeable compressor is currently at transition frequency section, according to the working frequency section and frequency regulations speed Corresponding relation, it is third speed to determine the frequency regulations speed；Wherein, the first rate is more than second speed, and second speed is more than the third speed.
- A kind of 9. frequency regulation arrangement of frequency-changeable compressor, it is characterised in that the frequency regulation arrangement bag of the frequency-changeable compressor Include：The frequency-changeable compressor frequency that memory, processor and being stored in can be run on the memory and on the processor is adjusted Program is saved, the frequency-changeable compressor frequency realizes following steps when adjusting program by the computing device：Obtain the current operation frequency of frequency-changeable compressor；Determine the frequency range in multiple working frequency sections corresponding to the frequency-changeable compressor；According to the current operation frequency and the frequency range in multiple working frequency sections, determine that the frequency-changeable compressor is current The working frequency section being in；According to default working frequency section and the corresponding relation of frequency regulations speed, determine that the frequency-changeable compressor is currently at Working frequency section corresponding to frequency regulations speed, and adjust according to the frequency regulations speed fortune of the frequency-changeable compressor Line frequency.
- 10. a kind of computer-readable recording medium, it is characterised in that frequency conversion pressure is stored with the computer-readable recording medium Contracting unit frequency adjusts program, and the frequency-changeable compressor frequency regulation program realizes following steps when being executed by processor：Obtain the current operation frequency of frequency-changeable compressor；Determine the frequency range in multiple working frequency sections corresponding to the frequency-changeable compressor；According to the current operation frequency and the frequency range in multiple working frequency sections, determine that the frequency-changeable compressor is current The working frequency section being in；According to default working frequency section and the corresponding relation of frequency regulations speed, determine that the frequency-changeable compressor is currently at Working frequency section corresponding to frequency regulations speed, and adjust according to the frequency regulations speed fortune of the frequency-changeable compressor Line frequency.
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| CN107449192B (en) | 2019-12-20 |
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