CN113959078B - Control method, device and equipment for compressor and storage medium - Google Patents
Control method, device and equipment for compressor and storage medium Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 55
- 238000005057 refrigeration Methods 0.000 claims description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 12
- 238000001816 cooling Methods 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 13
- 239000007788 liquid Substances 0.000 description 12
- 239000003507 refrigerant Substances 0.000 description 10
- 239000000725 suspension Substances 0.000 description 7
- 238000004891 communication Methods 0.000 description 6
- 230000006870 function Effects 0.000 description 5
- 238000004590 computer program Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- 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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- General Engineering & Computer Science (AREA)
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- Combustion & Propulsion (AREA)
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Abstract
The application relates to the technical field of water cooling equipment, and discloses a control method for a compressor, which comprises the steps of obtaining the current operation information of the compressor; acquiring target unloading information of the compressor according to the current operation information; and adjusting the current rotating speed of the compressor according to the target unloading information. The method can perform self-adaptive adjustment on the compressor according to the running condition of the compressor, and improves the running reliability of the compressor. The application also discloses a control device, equipment and a storage medium for the compressor.
Description
Technical Field
The present disclosure relates to the field of water cooling equipment, and more particularly, to a method, an apparatus, a device, and a storage medium for controlling a compressor.
Background
At present, a water cooling unit belongs to water cooling equipment and is commonly used in a building air conditioner. The water chiller is typically configured with a gas suspension compressor or a vapor-liquid mixing compressor. Taking the air suspension compressor as an example, the air suspension compressor is provided with an air suspension bearing, which belongs to power equipment which utilizes the pressure generated by air between the air suspension bearing and a rotor to support the rotor to run. In the running process of the compressor, the running state is unstable, the temperature of a frequency converter configured for the compressor changes in real time, and the rotating speed of the compressor also changes in real time.
The existing water cooling unit usually sends alarm information under the condition that the compressor runs abnormally, and if the sent alarm information lasts for a preset time, a maintainer does not execute corresponding operation, and the water cooling unit can be protected to be shut down.
In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:
the existing water cooling unit does not perform self-adaptive control on the running condition of the compressor, so that the running reliability of the compressor is influenced.
Disclosure of Invention
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.
The embodiment of the disclosure provides a control method, a control device, control equipment and a storage medium for a compressor, so that the compressor can be adaptively adjusted according to the running condition of the compressor, and the running reliability of the compressor is improved.
In some embodiments, the method comprises: current operation information of the compressor is acquired. Acquiring target unloading information of the compressor according to the current operation information; and adjusting the current rotating speed of the compressor according to the target unloading information.
In some embodiments, the apparatus comprises a processor and a memory storing program instructions, the processor being configured to execute the control method for a compressor as described above when executing the program instructions.
In some embodiments, the apparatus comprises a control device for a compressor as previously described.
In some embodiments, the storage medium stores program instructions, wherein the program instructions, when executed, perform a control method for a compressor as described above.
The control method, the control device, the control equipment and the storage medium for the compressor provided by the embodiment of the disclosure can realize the following technical effects:
the method acquires the target unloading information of the compressor according to the current operation information of the compressor, and adjusts the current rotating speed of the compressor according to the target unloading information, so that the operation parameters of the compressor can be adaptively adjusted according to the operation condition of the compressor, and the operation reliability of the compressor is improved.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
One or more embodiments are illustrated in the accompanying drawings, which correspond to the accompanying drawings and not in a limiting sense, in which elements having the same reference numeral designations represent like elements, and in which:
FIG. 1 is a system schematic of a refrigeration unit provided by embodiments of the present disclosure;
FIG. 2 is a schematic diagram of a control method for a compressor according to an embodiment of the present disclosure;
FIG. 3 is a schematic diagram of another control method for a compressor provided by an embodiment of the present disclosure;
FIG. 4 is a schematic diagram of another control method for a compressor provided by an embodiment of the present disclosure;
FIG. 5 is a schematic diagram of another control method for a compressor provided by an embodiment of the present disclosure;
FIG. 6 is a schematic diagram of another control method for a compressor provided by an embodiment of the present disclosure;
FIG. 7 is a schematic diagram of another control method for a compressor provided by an embodiment of the present disclosure;
FIG. 8 is a schematic diagram of a control apparatus for a compressor provided in accordance with an embodiment of the present disclosure;
fig. 9 is a schematic diagram of another control device for a compressor according to an embodiment of the present disclosure.
Detailed Description
So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.
The terms "first," "second," and the like in the description and claims of the embodiments of the disclosure and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged as appropriate for the embodiments of the disclosure described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
The term "plurality" means two or more unless otherwise specified.
In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.
The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.
The term "correspond" may refer to an association or binding relationship, and a corresponds to B refers to an association or binding relationship between a and B.
Referring to fig. 1, a refrigeration apparatus according to an embodiment of the present disclosure includes a water chiller, an evaporator 20, a condenser 40, and an air supply system. The water chiller includes a compressor 10. The water chiller forms a refrigerant circulation circuit with the evaporator 20 and the condenser 40. The air supply system includes an air supply tank 30, an electrical heating assembly 50, and a controller. An auxiliary liquid supply line 80 is provided between the gas supply tank 30 and the evaporator 20. The condenser 40 communicates with the evaporator 20 through an economizer 70. The controller is used to execute a control method for the compressor as described below.
The compressor 10 may be an air-suspension compressor equipped with an air-suspension bearing, or may be a vapor-liquid mixture compressor. The gas supply tank 30 is used to pump the liquid refrigerant in the evaporator 20 through the auxiliary liquid supply line 80 when the liquid level of the condenser 40 is low or the sub-cooled liquid level after the economizer 70 is pumped by the refrigerant pump. The electric heating element 50 is used for heating the refrigerant in the air supply tank 30 to form a vapor-liquid two-phase refrigerant, and supplying the vapor-liquid two-phase refrigerant to the compressor 10, so as to supply air to the air bearing of the compressor 10. The refrigerant in the air supply tank 30 may be a liquid refrigerant or a vapor-liquid two-phase refrigerant.
As shown in fig. 2, an embodiment of the present disclosure provides a control method for a compressor, including:
and S01, the refrigeration equipment acquires the current operation information of the compressor.
And S02, the refrigeration equipment acquires target unloading information of the compressor according to the current operation information.
And S03, the refrigeration equipment adjusts the current rotating speed of the compressor according to the target unloading information.
By adopting the control method for the compressor provided by the embodiment of the disclosure, the target unloading information of the compressor is obtained according to the current operation information of the compressor, and the current rotating speed of the compressor is adjusted according to the target unloading information, so that the self-adaptive adjustment of the compressor according to the operation condition of the compressor is realized, and the operation reliability of the compressor is improved.
Optionally, the target unloading information includes a target unloading rotation speed value. Referring to fig. 3, obtaining the target unloading information of the compressor according to the current operation information includes:
and S11, the refrigeration equipment acquires an information base, and the information base stores different types of operation information, early warning values respectively associated with the different types of operation information and unloading reference values respectively associated with the different types of operation information.
And S12, matching the target early warning value and the target unloading reference value corresponding to the current operation information from the information base by the refrigeration equipment.
And S13, determining a weighting coefficient by the refrigeration equipment according to the current operation information and the target early warning value.
And S14, the refrigeration equipment acquires a target unloading rotating speed value of the compressor according to the weighting coefficient and the target unloading reference value.
Therefore, the weighting coefficient can be determined through the target early warning value corresponding to the current operation information and the current operation information which are matched from the information base, the target unloading rotating speed value can be quickly and accurately obtained according to the weighting coefficient and the target unloading reference value, and the compressor can be adaptively adjusted according to the operation condition of the compressor.
The same unloading reference value can be used for different types of operation information, and different unloading reference values can also be used for different types of operation information. The unload reference value is greater than or equal to 1rpm and less than or equal to 100rpm. The unloading reference value may also be a preset value.
It should be noted that, the adjusting of the current rotation speed of the compressor by the refrigeration equipment according to the target unloading information includes:
and the current rotating speed of the compressor is differed from the target unloading rotating speed value.
Therefore, the current rotating speed of the compressor takes the target unloading rotating speed value as the unloading amount, the accurate unloading is realized, and the adaptive adjustment of the compressor is more accurate.
Optionally, as shown in fig. 4, the obtaining of the target unloading information of the compressor according to the current operation information includes:
and S21, the refrigeration equipment acquires an information base, and the information base stores different types of operation information, early warning values respectively associated with the different types of operation information, unloading reference values respectively associated with the different types of operation information and preset unloading values respectively associated with the different types of operation information.
And S22, matching the target early warning value, the target unloading reference value and the target preset unloading value corresponding to the current operation information from the information base by the refrigeration equipment.
And S23, under the condition that the current operation information of the refrigeration equipment is matched with the target preset unloading value within the first preset time period, obtaining a weighting coefficient according to the current operation information and the target early warning value.
And S24, the refrigeration equipment acquires a target unloading rotating speed value of the compressor according to the weighting coefficient and the target unloading reference value.
Therefore, preset unloading values associated with different types of running information are prestored in the information base, the refrigeration equipment can obtain a target unloading rotating speed value according to the weighting coefficient and the target unloading reference value, and the target unloading rotating speed value is rapidly obtained. The larger the difference between the current operation information and the target early warning value is, the larger the target unloading rotating speed value is, and the larger the unloading amount is, so that the rapid unloading can be realized. Meanwhile, when the current operation information is equal to the target early warning value, unloading is stopped, namely the compressor keeps the current rotating speed, so that the method can dynamically adjust the current rotating speed according to the difference between the current operation information and the target early warning value corresponding to the current operation information, and the efficiency of self-adaptive adjustment of the compressor is further improved.
The duration information of the first preset time period is greater than or equal to 1 second and less than or equal to 5 seconds.
Optionally, the operational information comprises suction pressure. The current operation information of the refrigeration equipment in a first preset time period is matched with a target preset unloading value, and the method comprises the following steps:
and in a first preset time period, the current operation information is smaller than a target preset unloading value.
Therefore, when the refrigeration equipment has the conditions of refrigerant leakage, blockage of an evaporator structure and a main liquid circuit electronic expansion valve, extremely low outlet water temperature of the evaporator and the like, the condition of low suction pressure can occur, and therefore the suction pressure needs to be monitored. The method comprises the steps of setting an early warning value and a preset unloading value which are related to suction pressure for effectively monitoring the suction pressure, comparing the current suction pressure in a first preset time period with a target preset unloading value when the suction pressure has a decreasing trend, and determining that the compressor needs to be unloaded and determining a weighting coefficient when the current suction pressure is smaller than the target preset unloading value.
Optionally, the operational information comprises suction pressure. Determining a weighting coefficient according to the current operation information and the target early warning value, wherein the weighting coefficient comprises the following steps:
and subtracting the target early warning value from the current operation information to obtain a weighting coefficient.
And the early warning value related to the suction pressure is larger than the preset unloading value related to the suction pressure.
Therefore, the weighting coefficient can be determined according to the difference value between the target early warning value and the current operation information, and the weighting coefficient can be rapidly acquired.
Optionally, the operation information includes an exhaust pressure, a pressure ratio, a current value, or a temperature value of the frequency converter. The method for matching the current operation information of the refrigeration equipment with the target preset unloading value in the first preset time period comprises the following steps:
and in a first preset time period, the current operation information is greater than a target preset unloading value.
In this way, when the refrigeration equipment is in abnormal operation, the discharge pressure, the pressure ratio, the current value and the temperature of the frequency converter are high, and therefore, the parameters need to be monitored. In order to effectively monitor the reference, an early warning value and a preset unloading value associated with the reference are set. Taking the discharge pressure as an example, when the discharge pressure has a trend of increasing, comparing the current discharge pressure in the first preset time period with a target preset unloading value, and when the current discharge pressure is greater than the target preset unloading value, determining that the unloading of the compressor is required and determining a weighting coefficient.
Optionally, the operation information includes an exhaust pressure, a pressure ratio, a current value, or a temperature value of the frequency converter. Determining a weighting coefficient according to the current operation information and the target early warning value, wherein the weighting coefficient comprises the following steps:
and subtracting the current operation information from the target early warning value to obtain a weighting coefficient.
The early warning value associated with the exhaust pressure is smaller than the preset unloading value associated with the exhaust pressure, the early warning value associated with the pressure ratio is smaller than the preset unloading value associated with the pressure ratio, the early warning value associated with the current value is smaller than the preset unloading value associated with the current value, and the early warning value associated with the temperature value is smaller than the preset unloading value associated with the temperature value.
Therefore, the weighting coefficient can be determined according to the difference value between the current operation information and the target early warning value, and the weighting coefficient can be rapidly acquired.
In addition, the refrigeration equipment acquires a target unloading rotating speed value of the compressor according to the weighting coefficient and the target unloading reference value, and comprises the following steps:
and multiplying the weighting coefficient by the target unloading reference value to obtain the target unloading rotating speed value of the compressor.
As an example, the information base stores an exhaust pressure, an intake pressure, and an early warning value, a preset unloading value and an unloading reference value related to the intake pressure and the exhaust pressure. The duration information of the first preset time period is 5 seconds.
The refrigerating equipment acquires the current exhaust pressure P Row board ' and matching the current exhaust pressure P from the information base Row board ' corresponding target early warning value P 00 And a target preset unloading value P corresponding to the current exhaust pressure P 01 And the current exhaust pressure P Row board ' corresponding target unload reference value v Row board And P is 00 <P 01 And obtaining the current suction pressure P Suction device ' and matching the current suction pressure P from the information base Suction device ' corresponding target early warning value P 10 Current exhaust pressure P Suction device ' corresponding target preset unload value P 11 And the current exhaust pressure P Row board ' corresponding target unload reference value v Suction device And P is 10 >P 1 ，
When the first preset time period is within 5 seconds, the current exhaust pressure P Row board ' continuously greater than the target preset unload value P 01 I.e. P' Row board >P 01 Then, the target unloading rotation speed value is obtained by adopting the following formula:
Δv row board ＝(P' Row board -P 00 )×v Row board ；
Wherein, Δ v Row board Representing a target unloaded speed value, P' Row board -P 00 Indicating the current exhaust pressure P Row board ' corresponding weighting coefficients.
When the first preset time period is within 5 seconds, the current suction pressure P Suction device ' continuously less than the target preset unload value P 01 I.e. P' Suction device <P 11 Then, the target unloading rotation speed value is obtained by adopting the following formula:
Δv suction device ＝(P 10 -P' Suction device )×v Suction device ；
Wherein, Δ v Suction device Representing a target unloaded speed value, P 10 -P' Suction device Indicates the current suction pressure P Suction device ' corresponding weighting coefficients.
Thus, the current exhaust pressure P Row board ' with target early warning value P 00 The larger the difference is, the target unloading rotation speed value delta v Row board The larger the discharge amount is, the faster the discharge is realized, so that the increasing trend of the current exhaust pressure is controlled. At the same time, when the current exhaust pressure P Row board ' with target early warning value P 00 When they are equal, the unloading is stopped and the current speed of the compressor is maintained. Target early warning value P 10 With the current suction pressure P Suction device ' the greater the difference, the target unloaded rotational speed value Deltav Suction device The larger the unloading amount is, the quick unloading is realized, and the reduction trend of the current suction pressure is controlled. At the same time, when the current suction pressure P is Suction device ' with target early warning value P 10 When they are equal, the unloading is stopped and the current speed of the compressor is maintained. Therefore, the method can acquire the corresponding target unloading rotating speed value according to different types of running information and the difference between the running information and the corresponding target early warning value, and further realize the self-adaptive adjustment of the current rotating speed of the compressor.
Optionally, as shown in fig. 5, the current operation information includes a current vibration amount. Obtaining target unloading information of the compressor according to the current operation information, wherein the target unloading information comprises the following steps:
and S31, the refrigeration equipment obtains a preset vibration unloading rotating speed value under the condition that the current vibration quantity is larger than the preset vibration unloading value.
And S32, the refrigeration equipment determines the preset vibration unloading rotating speed value as target unloading information.
Therefore, when the refrigeration equipment determines that the compressor needs to be unloaded, the refrigeration equipment obtains a preset vibration unloading rotating speed value, determines the preset vibration unloading rotating speed value as a target unloading rotating speed and adjusts the current rotating speed according to the target unloading rotating speed. The method can accurately obtain the target unloading information when the compressor is determined to be unloaded due to abnormal vibration of the compressor, so that the compressor can be more accurately subjected to self-adaptive adjustment, and the running reliability of the compressor is further improved.
Optionally, the preset vibration unloading rotation speed value is greater than or equal to 50rpm and less than or equal to 200rpm.
As shown in fig. 6, an embodiment of the present disclosure further provides a control method for a compressor, including:
and S41, the refrigeration equipment acquires the current operation information of the compressor.
And S42, obtaining a preset vibration unloading rotating speed value by the refrigeration equipment under the condition that the current vibration quantity is larger than the preset vibration unloading value.
And S43, the refrigeration equipment determines the preset vibration unloading rotating speed value as target unloading information.
And S44, the refrigeration equipment adjusts the current rotating speed of the compressor according to the target unloading information.
And S45, the refrigeration equipment acquires a new current vibration quantity.
And S46, under the condition that the new current vibration quantity is larger than the preset vibration unloading value, the refrigerating equipment acquires a new current rotating speed, and adjusts the new current rotating speed according to the target unloading information.
By adopting the control method for the compressor provided by the embodiment of the disclosure, because the current vibration quantity of the compressor is dynamically changed, after the compressor is unloaded, the new current vibration quantity may be larger than the preset vibration unloading value, so that the refrigeration equipment needs to acquire the new current vibration quantity, compare the new current vibration quantity with the preset vibration unloading value again, acquire the new current rotating speed when the new current vibration quantity is larger than the preset vibration unloading value, and adjust the new current rotating speed again according to the target unloading information, and finally, the reliable operation of the compressor is realized.
Meanwhile, the refrigeration equipment acquires a new current rotating speed under the condition that the new current vibration quantity is greater than the preset vibration unloading value, adjusts the new current rotating speed according to the target unloading information, can make a difference between the new current rotating speed and the preset vibration unloading rotating speed value for acquiring the new current rotating speed, acquires an updated current rotating speed and an updated current vibration quantity, and makes a difference between the updated current rotating speed and the preset vibration unloading rotating speed value under the condition that the updated current vibration quantity is greater than the preset vibration unloading value until the finally updated current vibration quantity is less than the preset vibration unloading value. Therefore, when the current vibration quantity is larger than the preset vibration unloading value, the new steps of the current rotating speed and the preset vibration unloading value are executed, so that the current rotating speed is unloaded in a fixed unloading quantity, the compressor is quickly separated from the alarm edge, and the reliable and stable operation of the compressor is realized.
It should be noted that, the step of determining, by the refrigeration apparatus, whether the new current vibration quantity is greater than the preset vibration unloading value may be to detect whether a time when the new current vibration quantity is greater than the preset vibration unloading value exists within the second preset time period, if so, determine that the new current vibration quantity is greater than the preset vibration unloading value, or determine whether the new current vibration quantity is continuously greater than the preset vibration unloading value within the second preset time period, and if so, determine that the new current vibration quantity is greater than the preset vibration unloading value. The determination method of the refrigeration apparatus on the magnitude of the new current vibration amount and the preset vibration unloading value may not be specifically limited in this embodiment of the disclosure.
Therefore, whether the moment when the new current vibration quantity is larger than the preset vibration unloading value exists in the second preset time period or not is judged, if yes, the situation that the new current vibration quantity of the compressor still exceeds the preset vibration unloading value can be known, and the fact that the new current rotating speed of the compressor needs to be adjusted is indicated, so that the compressor can run more reliably and stably. And judging whether the new current vibration quantity in the second preset time period is continuously larger than a preset vibration unloading value or not, if so, indicating that the compressor is not separated from the alarm edge in the unloading process of the current rotating speed in the earlier period, and therefore, regulating the new current rotating speed of the compressor again to separate the compressor from the alarm edge so as to realize the reliable and stable operation of the compressor.
In addition, after the new current vibration amount is smaller than the preset vibration unloading value, the refrigeration equipment further comprises:
and recovering the preset adjusting mode of the current rotating speed of the compressor by the refrigeration equipment under the condition that the new current vibration quantity in the second preset time period is continuously smaller than the vibration early warning value.
And the preset vibration unloading value is greater than the vibration early warning value. The preset adjusting mode is an adjusting mode preset by the refrigeration equipment for the current rotating speed.
And the duration information of the second preset time period is greater than or equal to 5 seconds and less than or equal to 60 seconds.
In practical application, as shown in connection with fig. 7, the refrigeration appliance is provided with a controller. The compressor is provided with a vibration sensor for detecting vibration. The vibration sensor is electrically connected with the controller.
And S51, the controller acquires the current vibration quantity of the compressor through the vibration sensor, and the current vibration quantity is determined to be larger than the preset vibration unloading value through comparison, so that the preset vibration unloading rotating speed value is determined.
And S52, the controller makes a difference between the current rotating speed and a preset vibration unloading rotating speed value to obtain a new current rotating speed.
And S53, the controller acquires a new current vibration quantity of the compressor within a second preset time period of 20 seconds.
And S54, judging whether the new current vibration amount has a moment greater than a preset vibration unloading value in a second preset time period by the controller, if so, executing S55, and otherwise, executing S56.
In S55, the controller acquires the current rotation speed updated again, and returns to S52.
And S56, judging whether the new current vibration quantity is continuously smaller than the vibration early warning value in a second preset time period by the controller, and if so, executing S57.
And S57, the controller restores the preset adjusting mode of the current rotating speed of the compressor.
As shown in fig. 8, an embodiment of the present disclosure provides a control apparatus for a compressor, which includes an obtaining module 201, a determining module 202, and an executing module 203. The acquisition module 201 is configured to acquire current operation information of the compressor; the determination module 202 is configured to obtain target unloading information of the compressor according to the current operation information; the execution module 203 is configured to adjust a current rotational speed of the compressor according to the target unloading information.
By adopting the control device for the compressor provided by the embodiment of the disclosure, the self-adaptive adjustment of the operation parameters of the compressor according to the operation condition of the compressor is realized, so that the operation reliability of the compressor is improved.
As shown in fig. 9, an embodiment of the present disclosure provides a control device for a compressor, which includes a processor (processor) 100 and a memory (memory) 101. Optionally, the apparatus may also include a Communication Interface (Communication Interface) 102 and a bus 103. The processor 100, the communication interface 102, and the memory 101 may communicate with each other via a bus 103. The communication interface 102 may be used for information transfer. The processor 100 may call logic instructions in the memory 101 to perform the control method for the compressor of the above-described embodiment.
In addition, the logic instructions in the memory 101 may be implemented in the form of software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products.
The memory 101 is used as a computer readable storage medium for storing software programs, computer executable programs, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 100 executes functional applications and data processing by executing program instructions/modules stored in the memory 101, that is, implements the control method for the compressor in the above-described embodiment.
The memory 101 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal device, and the like. In addition, the memory 101 may include a high-speed random access memory, and may also include a nonvolatile memory.
The embodiment of the disclosure provides a refrigeration device, which comprises the control device for the compressor.
Embodiments of the present disclosure provide a computer-readable storage medium storing computer-executable instructions configured to perform the above-described control method for a compressor.
The disclosed embodiments provide a computer program product comprising a computer program stored on a computer readable storage medium, the computer program comprising program instructions that, when executed by a computer, cause the computer to perform the above-described control method for a compressor.
The computer-readable storage medium described above may be a transitory computer-readable storage medium or a non-transitory computer-readable storage medium.
The technical solution of the embodiments of the present disclosure may be embodied in the form of a software product, where the computer software product is stored in a storage medium and includes one or more instructions to enable a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method of the embodiments of the present disclosure. And the aforementioned storage medium may be a non-transitory storage medium comprising: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes, and may also be a transient storage medium.
The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. Furthermore, the words used in the specification are words of description for example only and are not limiting upon the claims. As used in the description of the embodiments and the claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and/or" as used in this application is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, the terms "comprises" and/or "comprising," when used in this application, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Without further limitation, an element defined by the phrase "comprising one of 8230," does not exclude the presence of additional like elements in a process, method or device comprising the element. In this document, each embodiment may be described with emphasis on differences from other embodiments, and the same and similar parts between the respective embodiments may be referred to each other. For methods, products, etc. of the embodiment disclosures, reference may be made to the description of the method section for relevance if it corresponds to the method section of the embodiment disclosure.
Those of skill in the art would appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software may depend upon the particular application and design constraints imposed on the technical solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the disclosed embodiments. It can be clearly understood by the skilled person that, for convenience and brevity of description, the specific working processes of the system, the apparatus and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments disclosed herein, the disclosed methods, products (including but not limited to devices, apparatuses, etc.) may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units may be merely a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form. The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to implement the present embodiment. In addition, functional units in the embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. In the description corresponding to the flowcharts and block diagrams in the figures, operations or steps corresponding to different blocks may also occur in different orders than disclosed in the description, and sometimes there is no specific order between the different operations or steps. For example, two sequential operations or steps may in fact be executed substantially concurrently, or they may sometimes be executed in the reverse order, depending upon the functionality involved. Each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by special purpose hardware-based systems that perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
Claims (6)
1. A control method for a compressor, comprising:
acquiring current operation information of the compressor;
acquiring target unloading information of the compressor according to the current operation information;
adjusting the current rotating speed of the compressor according to the target unloading information;
the target unloading information includes a target unloading rotation speed value, and the obtaining of the target unloading information of the compressor according to the current operation information includes:
acquiring an information base, wherein different types of operation information, early warning values respectively associated with the different types of operation information and unloading reference values respectively associated with the different types of operation information are stored in the information base, and the different types of operation information comprise air suction pressure, exhaust pressure, pressure ratio, current value, temperature value of a frequency converter or current vibration quantity;
matching a target early warning value and a target unloading reference value corresponding to the current operation information from the information base;
determining a weighting coefficient according to the current operation information and the target early warning value;
acquiring a target unloading rotating speed value of the compressor according to the weighting coefficient and the target unloading reference value;
under the condition that the operation information is the suction pressure, determining a weighting coefficient according to the current operation information and the target early warning value, wherein the determining comprises the following steps:
subtracting the target early warning value from the current operation information to obtain the weighting coefficient;
under the condition that the operation information is exhaust pressure, pressure ratio, current value or temperature value of the frequency converter, determining a weighting coefficient according to the current operation information and the target early warning value comprises:
subtracting the current operation information from the target early warning value to obtain the weighting coefficient;
when the current operation information is the current vibration amount, acquiring the target unloading information of the compressor according to the current operation information, wherein the target unloading information comprises:
under the condition that the current vibration quantity is larger than a preset vibration unloading value, obtaining a preset vibration unloading rotating speed value;
and determining the preset vibration unloading rotating speed value as the target unloading information.
2. The method of claim 1, wherein the information base further stores preset uninstall values respectively associated with different types of operation information, the method further comprising:
matching a target preset unloading value corresponding to the current operation information from the information base;
and under the condition that the current operation information is matched with the target preset unloading value within a first preset time period, obtaining the weighting coefficient according to the current operation information and the target early warning value.
3. The method of claim 1, wherein after adjusting the current speed of the compressor based on the target unloading information, further comprising:
acquiring a new current vibration quantity;
and under the condition that the new current vibration quantity is larger than the preset vibration unloading value, acquiring a new current rotating speed, and adjusting the new current rotating speed according to the target unloading information.
4. A control device for a compressor, comprising a processor and a memory in which program instructions are stored, characterized in that the processor is configured, when executing the program instructions, to carry out a control method for a compressor according to any one of claims 1 to 3.
5. Refrigeration appliance, characterized in that it comprises a control device for a compressor according to claim 4.
6. A storage medium storing program instructions, characterized in that said program instructions, when executed, perform a control method for a compressor according to any one of claims 1 to 3.
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| JP2017053566A (en) * | 2015-09-10 | 2017-03-16 | ジョンソンコントロールズ ヒタチ エア コンディショニング テクノロジー（ホンコン）リミテッド | Refrigeration cycle device |
| CN107091516B (en) * | 2017-06-08 | 2019-10-08 | 广东美的暖通设备有限公司 | Current control method, current control system and air conditioner |
| CN110678701B (en) * | 2017-07-14 | 2022-05-17 | 大金工业株式会社 | Air conditioner |
| JP2019143950A (en) * | 2018-02-23 | 2019-08-29 | ダイキン工業株式会社 | Air conditioner |
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