CN115325680A - Compressor control method, device, equipment and storage medium - Google Patents
Compressor control method, device, equipment and storage medium Download PDFInfo
- Publication number
- CN115325680A CN115325680A CN202211024471.7A CN202211024471A CN115325680A CN 115325680 A CN115325680 A CN 115325680A CN 202211024471 A CN202211024471 A CN 202211024471A CN 115325680 A CN115325680 A CN 115325680A
- Authority
- CN
- China
- Prior art keywords
- frequency
- compressor
- temperature
- adjustment
- parameter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 46
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 110
- 230000033228 biological regulation Effects 0.000 claims description 13
- 230000000630 rising effect Effects 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 230000003828 downregulation Effects 0.000 claims description 7
- 230000009467 reduction Effects 0.000 claims description 4
- 230000008859 change Effects 0.000 description 19
- 230000001276 controlling effect Effects 0.000 description 13
- 230000001105 regulatory effect Effects 0.000 description 8
- 230000003827 upregulation Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000010725 compressor oil Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- 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
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
-
- 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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
-
- 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
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Thermal Sciences (AREA)
- Signal Processing (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Human Computer Interaction (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The embodiment of the application provides a compressor control method, a compressor control device, compressor control equipment and a storage medium, and relates to the technical field of compressor control. The method comprises the following steps: determining a temperature difference parameter according to the target temperature and the initial outlet water temperature; determining the starting number of the compressors according to the temperature difference parameters, and starting the compressors at a preset initial frequency; acquiring real-time outlet water temperature after the compressor runs for a preset time; determining a first frequency adjusting parameter of the compressor according to the target temperature and the real-time outlet water temperature; determining a second frequency adjusting parameter of the compressor according to the real-time outlet water temperature and the initial outlet water temperature; and adjusting the frequency of the started compressor according to the first frequency adjusting parameter and the second frequency adjusting parameter. The scheme reduces the starting and stopping times of the compressor and effectively protects the compressor.
Description
Technical Field
The embodiment of the application relates to the technical field of compressor control, in particular to a compressor control method, device, equipment and storage medium.
Background
The heat pump is a high-efficiency energy-saving device which makes full use of low-grade heat energy, is widely applied to air conditioners, such as split-type heat pump air conditioners, and is used for cooling in summer or heating in winter by using the same set of equipment, such as a compressor, a condenser, a throttle valve, an evaporator and the like, and realizes refrigeration or heating by pumping heat in circulating water into a room.
In the operation process of the heat pump unit, when the actual load is smaller than the capacity of the heat pump unit, a scene that the compressor is frequently started and stopped can occur. Although the variable frequency compressor can achieve the effect of adjusting capacity output by adjusting frequency, the problem of frequent start and stop cannot be effectively solved because a control system cannot accurately match loads, and the compressor oil cannot normally return to the compressor due to frequent start and stop, so that the service life of the compressor is influenced.
Disclosure of Invention
The embodiment of the application provides a compressor control method, a compressor control device, compressor control equipment and a storage medium, solves the problem of frequent starting and stopping of a compressor, reduces the starting and stopping times of the compressor by performing frequency regulation control on the compressor, and effectively protects the compressor.
In a first aspect, an embodiment of the present application provides a compressor control method, including:
determining a temperature difference parameter according to the target temperature and the initial outlet water temperature;
determining the starting number of the compressors according to the temperature difference parameters, and starting the compressors at a preset initial frequency;
acquiring real-time outlet water temperature after the compressor runs for a preset time;
determining a first frequency adjusting parameter of the compressor according to the target temperature and the real-time outlet water temperature; determining a second frequency adjusting parameter of the compressor according to the real-time outlet water temperature and the initial outlet water temperature;
and adjusting the frequency of the started compressor according to the first frequency adjusting parameter and the second frequency adjusting parameter.
In a second aspect, an embodiment of the present application provides a compressor control apparatus, including:
the first temperature acquisition module is configured to determine a temperature difference parameter according to the target temperature and the initial outlet water temperature;
the equipment starting module is configured to determine the starting number of the compressors according to the temperature difference parameter and start the compressors at a preset initial frequency;
the second temperature acquisition module is configured to acquire the real-time outlet water temperature after the compressor runs for a preset time;
the adjusting parameter determining module is configured to determine a first frequency adjusting parameter of the compressor according to the target temperature and the real-time outlet water temperature; determining a second frequency adjusting parameter of the compressor according to the real-time outlet water temperature and the initial outlet water temperature;
and the frequency adjusting module is configured to adjust the frequency of the started compressor according to the first frequency adjusting parameter and the second frequency adjusting parameter.
In a third aspect, an embodiment of the present application provides a compressor control apparatus, including:
one or more processors;
a memory for storing one or more programs;
when the one or more programs are executed by the one or more processors, the one or more processors are caused to implement the compressor control method as in the above embodiments.
In a fourth aspect, embodiments of the present application provide a storage medium storing computer-executable instructions, which when executed by a processor, are used to perform a compressor control method as in the above embodiments.
The embodiment of the application acquires the temperature difference parameter through the target temperature and the initial water outlet temperature, so as to determine the starting number of the compressors, determine the first frequency adjusting parameter according to the comparison between the real-time water outlet temperature and the target temperature, and determine the second frequency adjusting parameter according to the water temperature change value between the real-time water outlet temperature and the initial water outlet temperature, thereby adjusting the frequency of the compressors based on the first frequency adjusting parameter and the second frequency adjusting parameter, so as to adjust the water outlet temperature more accurately, effectively match the load, reduce the number of times of starting and stopping the compressors, effectively protect the compressors, and contribute to prolonging the service life of the compressors.
Drawings
FIG. 1 is a flow chart of a compressor control method provided by an embodiment of the present application;
FIG. 2 is a flow chart of a compressor control method according to another embodiment of the present application;
FIG. 3 is a flow chart of a compressor control method provided in accordance with yet another embodiment of the present application;
fig. 4 is a block diagram illustrating a structure of a compressor control device according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a compressor control apparatus according to an embodiment of the present application.
Detailed Description
The embodiments of the present application will be described in further detail with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad embodiments of the present application. It should be further noted that, for convenience of description, only some structures related to the embodiments of the present application are shown in the drawings, not all of the structures are shown.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application are capable of operation in sequences other than those illustrated or described herein, and that the terms "first," "second," etc. are generally used in a generic sense and do not limit the number of terms, e.g., a first term can be one or more than one. In the description of the present application, a plurality means two or more. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
Fig. 1 is a flowchart of a compressor control method provided in an embodiment of the present application, where the method is used for controlling a compressor frequency, and the method specifically includes the following steps:
and step S110, determining a temperature difference parameter according to the target temperature and the initial outlet water temperature.
In the heat pump unit, the target temperature and the initial water outlet temperature are both water outlet temperatures regulated by the compressor, the target temperature is a temperature set according to regulation requirements, and the initial water outlet temperature is the water outlet temperature when the compressor of the heat pump unit is not started. It is contemplated that the initial effluent temperature may be sensed by a water temperature sensor and the control module determines a temperature value. The temperature difference parameter is the difference between the target temperature and the initial outlet water temperature, and is used for determining the number of compressors in the heat pump unit, namely the starting number.
And step S120, determining the starting number of the compressors according to the temperature difference parameters, and starting the compressors at a preset initial frequency.
The heat pump unit is provided with a plurality of compressors, the starting number of the compressors is not fixed, and the starting number of the compressors is determined through temperature difference parameters. After the temperature difference parameter is determined, the number of the compressors to be started can be correspondingly determined, and the compressors can be started at a preset initial frequency.
In one embodiment, the total number of compressors in the heat pump unit is limited, and therefore, a plurality of temperature difference intervals are correspondingly set, the number of the temperature difference intervals is the same as the total number, and each temperature difference interval corresponds to a different starting number. It should be understood that the temperature difference intervals are divided into temperature values, and the size of each temperature difference interval may be the same or different.
Exemplarily, be provided with 4 compressors in the heat pump set, correspond, can set up 4 temperature difference intervals, each temperature difference interval corresponds an opening quantity, as shown in the following table:
| number of openings | |
| Temperature difference interval 1 | 1 |
| Temperature difference interval 2 | 2 |
| Temperature difference interval 3 | 3 |
| Temperature difference interval 4 | 4 |
When the temperature difference parameter is in one of the temperature difference intervals, the temperature difference interval is started, the number of the compressors is correspondingly started, and the compressors are started at a preset initial frequency. For example, if the temperature difference parameter is in the temperature difference interval 2, 2 compressors are controlled to be started at a preset initial frequency.
And S130, acquiring the real-time outlet water temperature after the compressor runs for a preset time.
Step S140, determining a first frequency adjusting parameter of the compressor according to the target temperature and the real-time outlet water temperature; and determining a second frequency adjusting parameter of the compressor according to the real-time outlet water temperature and the initial outlet water temperature.
After the compressor operates for a period of time (preset duration), the outlet water temperature is detected again to obtain the corresponding real-time outlet water temperature, and after the compressor operates for a period of time, the real-time outlet water temperature should be changed, such as increased or decreased. Therefore, the first frequency adjusting parameter of the compressor is determined according to the target temperature and the real-time outlet water temperature, and if the real-time outlet water temperature is compared with the target temperature, the first frequency adjusting parameter of the compressor is determined.
The first frequency adjustment parameter may be set to a plurality of adjustment steps, such as a first adjustment step, a second adjustment step, a third adjustment step, and a fourth adjustment step, according to the comparison result. The real-time water outlet temperature corresponding to the first adjusting gear is greater than the sum of the target water outlet temperature and the shutdown return difference temperature; the real-time outlet water temperature corresponding to the second adjusting gear is higher than the target temperature and is less than or equal to the sum of the target temperature and the shutdown return difference temperature; the third adjusting gear corresponds to the condition that the real-time outlet water temperature is greater than the difference between the target temperature and the starting return difference temperature, and the real-time outlet water temperature is less than or equal to the target temperature; the real-time outlet water temperature corresponding to the fourth regulating gear is less than or equal to the difference between the target temperature and the start-up return difference temperature. Therefore, the specific first frequency adjusting parameter is determined through the adjusting gear position in which the real-time outlet water temperature falls.
And determining a second frequency adjusting parameter of the compressor according to the real-time outlet water temperature and the initial outlet water temperature, and if the difference value between the real-time outlet water temperature and the initial outlet water temperature is taken as the second frequency adjusting parameter, the difference value represents a water temperature change value before and after the compressor works, and the water temperature change value can represent the change trend of the water temperature. If the water temperature change value is 0, the water temperature is kept unchanged; a water temperature change value greater than 0 indicates a temperature increase, etc., and it is conceivable that a plurality of threshold values may be set to indicate how fast the temperature increases or decreases in the case where the water temperature change value is greater than 0 or less than 0.
And S150, adjusting the frequency of the started compressor according to the first frequency adjusting parameter and the second frequency adjusting parameter.
After the first frequency adjustment parameter and the second frequency adjustment parameter are determined, the started compressor needs to perform frequency adjustment, such as frequency up adjustment, frequency down adjustment or shutdown, on the basis of the preset initial frequency.
In one embodiment, fig. 2 is a flowchart of a compressor control method according to another embodiment of the present application, and as shown in the figure, for the frequency adjustment performed by the compressor, the compressor control method further includes the following steps:
and step S210, acquiring the operation information of the compressor, and determining the current operation mode of the compressor according to the operation information.
And step S220, determining frequency adjustment information corresponding to the operation mode according to the operation mode.
Step S230, determining a frequency variation value in the frequency adjustment information based on the first frequency adjustment parameter and the second frequency adjustment parameter.
The operation mode of the compressor corresponds to a heating mode and a cooling mode, and the operation mode may be determined by operation information of the compressor, and it is conceivable that the operation information is parameter information related to an operation state, an operation mode, and the like, which is output by the compressor in operation. The frequency adjustment information is different for different operation modes, and correspondingly, the frequency variation value in the frequency adjustment information is different in different operation modes.
The frequency variation value in the frequency adjustment information is a value corresponding to the first frequency adjustment parameter and the second frequency adjustment parameter, and in a plurality of frequency variation values of the frequency adjustment information, the first frequency adjustment parameter and the second frequency adjustment parameter need to be determined to determine a specific frequency variation value, namely, the frequency variation values are different corresponding to different combinations of the first frequency adjustment parameter and the second frequency adjustment parameter, so that the frequency of the compressor can be effectively adjusted, the compressor can be matched with a load, and the frequency of starting and stopping the compressor is effectively reduced.
According to the scheme, the temperature difference parameter is obtained through the target temperature and the initial water outlet temperature, the starting number of the compressors is determined, the compressors in excessive number are prevented from being started simultaneously, waste of compressor resources is avoided, the first frequency adjusting parameter is determined according to the comparison between the real-time water outlet temperature and the target temperature, the second frequency adjusting parameter is determined through the water temperature change value between the real-time water outlet temperature and the initial water outlet temperature, the frequency of the compressor is adjusted based on the first frequency adjusting parameter and the second frequency adjusting parameter, adjustment of the water outlet temperature is more accurate, loads are effectively matched, the number of times of starting and stopping the compressor is reduced, protection of the compressor is effectively achieved, and the service life of the compressor is prolonged.
In some embodiments, the first frequency adjustment parameter includes a first adjustment gear, a second adjustment gear, a third adjustment gear, and a fourth adjustment gear. The real-time water outlet temperature corresponding to the first adjusting gear is greater than the sum of the target water outlet temperature and the shutdown return difference temperature; the real-time outlet water temperature corresponding to the second adjusting gear is higher than the target temperature and is less than or equal to the sum of the target temperature and the shutdown return difference temperature; the third adjusting gear corresponds to the condition that the real-time outlet water temperature is greater than the difference between the target temperature and the starting return difference temperature, and the real-time outlet water temperature is less than or equal to the target temperature; the real-time outlet water temperature corresponding to the fourth regulating gear is less than or equal to the difference between the target temperature and the start-up return difference temperature.
For example, the frequency adjustment information may be stored in a table form, wherein a row corresponds to a first frequency adjustment parameter, such as each adjustment gear, and a column corresponds to a second frequency adjustment parameter, such as a section corresponding to each water temperature variation value, and it is contemplated that the water temperature variation value a, the water temperature variation value b, etc. may also correspond to different temperature sections, thereby better representing the variation of the water temperature.
When the first frequency adjusting parameter is the first adjusting gear, the compressor is controlled to be closed, and it can be understood that in the first adjusting gear, the actual outlet water temperature exceeds the target temperature and reaches the temperature value at which the compressor needs to be closed, so that in the first adjusting gear, the compressor is closed by the water temperature change value corresponding to any one second frequency adjusting parameter.
When the first frequency adjusting parameter is the second adjusting gear, the compressor is controlled to perform down-frequency adjustment, and it can be understood that in the heating mode or the cooling mode, in the second adjusting gear, the compressor performs down-frequency adjustment to reduce the working frequency of the compressor, thereby achieving the effect of reducing the real-time outlet water temperature. In addition, for different water temperature change values corresponding to the second frequency adjustment frequency, the different water temperature change values correspond to different frequency change values in the frequency adjustment information, and the frequency change value takes a negative value so as to reduce the working frequency of the compressor.
And when the first frequency adjusting parameter is a third adjusting gear or a fourth adjusting gear, controlling the compressor to perform frequency-up adjustment. And the frequency change values corresponding to the two regulating gears and the different water temperature change values are positive values so as to increase the working frequency of the compressor.
It should be noted that the multiple frequency change values corresponding to the fourth adjustment gear may be higher than the multiple frequency change values corresponding to the third adjustment gear, so that when the real-time outlet water temperature is low, the frequency of the compressor can be increased faster, and the outlet water temperature is increased faster.
Therefore, according to the frequency adjusting method and device, the frequency change values under different operation modes are determined through the first frequency adjusting parameter and the second frequency adjusting parameter, different adjustment is carried out on the compressor at different adjusting gears, the frequency adjusting strategy can be adjusted in real time according to the real-time water outlet temperature, effective matching of the compressor to a load is achieved, starting and stopping frequency of the compressor is effectively reduced, and the compressor is protected.
Fig. 3 is a flowchart of a compressor control method according to another embodiment of the present application, and as shown in the drawing, the method includes the following steps:
and step S310, controlling one of the compressors to perform frequency-up regulation on the first target compressor under the condition that the number of the started compressors is at least two.
Step S320, if the frequency of the first target compressor reaches the preset upper frequency-increasing limit, determining whether the frequency adjustment of the started compressor is still needed.
Step S330, if the frequency rising adjustment is still needed, controlling another compressor to carry out the frequency rising adjustment.
Step S340, if down-conversion adjustment is still needed, controlling the first target compressor to perform down-conversion adjustment.
It will be appreciated that in the case where the number of compressors that have been turned on is at least two, the up-regulation is performed on one of the compressors, which is the first target compressor.
When the frequency of the first target compressor reaches the preset upper frequency-increasing limit, it is determined whether the frequency adjustment of the started compressor is still needed, for example, the first frequency adjustment parameter and the second frequency adjustment parameter are determined again according to the current real-time outlet water temperature, so as to determine the frequency adjustment of the compressor, such as performing the frequency-increasing adjustment or the frequency-decreasing adjustment, or turning off the compressor.
When the frequency rising regulation is needed, the other compressor is controlled to carry out the frequency rising regulation. For example, in the case where three compressors (e.g., compressor a, compressor b, and compressor c) have been turned on, compressor a is the first target compressor, and therefore, one of compressor b or compressor c may be selected for up-regulation, and it is conceivable that, for example, compressor b is selected for up-regulation, and when compressor b reaches a preset up-regulation limit, compressor c is selected for up-regulation. When frequency down-regulation is required, the first target compressor is controlled to perform frequency down-regulation, and the rest of the compressors maintain the existing working frequency. It should be noted that the preset upper limit of the frequency boost may be the highest frequency of the compressor, or may be a frequency value smaller than the highest frequency.
It is conceivable that when the upper frequency increase limit is smaller than the maximum frequency of the compressor, and when all of the started compressors reach the upper frequency increase limit, the first target compressor may be controlled to perform the frequency increase adjustment until the operating frequency of the first target compressor reaches the maximum frequency.
This embodiment is through controlling a plurality of compressors in the unit, all adjusts the frequency of a compressor in frequency control at every turn to can realize effectively that compressor and load match, start the frequency of stopping with the reduction compressor, realize the protection to the compressor.
In some embodiments, for the condition that all the started compressors reach the upper frequency increasing limit, whether a compressor which is not started, namely a standby compressor, exists in the unit is determined, and if the compressor which is not started exists in the unit, the standby compressor is controlled to be started and frequency increasing adjustment is carried out. Illustratively, 4 compressors are arranged in the unit, the number of the started compressors is 3, and when all 3 compressors reach the upper frequency increasing limit, the rest 1 compressor is controlled to be started and frequency increasing adjustment is carried out.
Therefore, by providing the scheme for controlling the starting of the compressor, the situation that the compressor is frequently started and stopped due to the fact that the energy efficiency of the compressor cannot be matched with the load is reduced, the compressor is effectively protected, and the service life of the compressor is prolonged.
In addition, for the case where there is no standby compressor, the compressor is controlled to keep the current frequency operation. For example, under the condition that 4 compressors set in the unit are all started, if all 4 compressors reach the upper frequency-increasing limit, the 4 compressors are controlled to keep operating at the current frequency.
When the upper frequency increase limit is smaller than the maximum frequency of the compressor, if the stand-by compressor is not present in the unit, the first target compressor of the compressors which are started is controlled to continue frequency increase.
In some embodiments, if it is determined that the frequency adjustment for the compressor that has been turned on is down-regulation, the compressor that has been running for the longest time, i.e., the second target compressor, is controlled to be down-regulated. It can be understood that the operation time of each compressor in the unit is recorded, for example, as a parameter of the operation information, when frequency reduction and adjustment are required, the compressor with the longest operation time is preferentially selected for frequency reduction, so as to reduce the time of high-frequency operation of the compressor, which is beneficial to prolonging the service life of the compressor.
In some embodiments, in the case where the number of compressors that have been turned on at present is one, the compressors are controlled to perform frequency adjustment in steps of a preset frequency value. The single compressor is started at a preset initial frequency, and when frequency adjustment is needed, the single compressor is adjusted according to the preset frequency value, and it is noted that the compressor is still controlled to be closed in an adjustment gear determined by the first frequency adjustment parameter, such as in a first adjustment gear; in the second regulating gear, the compressor performs down-conversion regulation with a preset frequency value; and in the third regulating gear and the fourth regulating gear, the compressor is subjected to frequency increasing regulation at a preset frequency value.
Fig. 4 is a block diagram of a compressor control apparatus according to an embodiment of the present application, where the apparatus is configured to execute a compressor control method according to the embodiment, and has functional modules and beneficial effects corresponding to the execution method. As shown in the figure, the device specifically includes: a first temperature acquisition module 401, a device turn-on module 402, a second temperature acquisition module 403, an adjustment parameter determination module 404, and a frequency adjustment module 405.
The first temperature acquisition module 401 is configured to determine a temperature difference parameter according to the target temperature and the initial outlet water temperature;
an equipment starting module 402 configured to determine the starting number of the compressors according to the temperature difference parameter, and start the compressors at a preset initial frequency;
a second temperature obtaining module 403, configured to obtain a real-time outlet water temperature after the compressor operates for a preset time period;
an adjustment parameter determining module 404 configured to determine a first frequency adjustment parameter of the compressor according to the target temperature and the real-time outlet water temperature; determining a second frequency adjusting parameter of the compressor according to the real-time outlet water temperature and the initial outlet water temperature;
a frequency adjustment module 405 configured to frequency adjust the activated compressor according to the first frequency adjustment parameter and the second frequency adjustment parameter.
On the basis of the above embodiment, the frequency adjustment module 405 is further configured to:
acquiring the running information of the compressor, and determining the current running mode of the compressor according to the running information;
determining frequency adjustment information corresponding to the operation mode according to the operation mode;
determining a frequency variation value in the frequency adjustment information based on the first frequency adjustment parameter and the second frequency adjustment parameter;
wherein the frequency adjustment information includes a plurality of frequency variation values corresponding to the first frequency adjustment parameter and the second frequency adjustment parameter.
On the basis of the above embodiment, the first frequency adjustment parameter includes a first adjustment gear, a second adjustment gear, a third adjustment gear, and a fourth adjustment gear; the frequency adjustment module 405 is further configured to:
when the real-time outlet water temperature is greater than the sum of the target temperature and the shutdown return difference temperature, the first frequency adjusting parameter is a first adjusting gear, and the compressor is controlled to be closed;
when the real-time outlet water temperature is higher than the target temperature and is lower than or equal to the sum of the target temperature and the shutdown return difference temperature, the first frequency adjustment parameter is a second adjustment gear, and the compressor is controlled to perform down-frequency adjustment;
when the real-time outlet water temperature is greater than the difference between the target temperature and the start-up return difference temperature and is less than or equal to the target temperature, the first frequency adjusting parameter is a third adjusting gear, and the compressor is controlled to perform frequency-up adjustment;
and when the real-time outlet water temperature is less than or equal to the difference between the target temperature and the start-up return difference temperature, the first frequency adjusting parameter is a fourth adjusting gear, and the compressor is controlled to perform frequency-up adjustment.
On the basis of the above embodiment, the system further includes a device adjusting module, and the device adjusting module is configured to:
controlling one of the compressors to perform frequency-up regulation on a first target compressor under the condition that the number of the started compressors is at least two;
if the frequency of the first target compressor reaches a preset frequency increasing upper limit, determining whether the frequency of the started compressor still needs to be adjusted;
if the frequency rising adjustment is still needed, controlling another compressor to carry out the frequency rising adjustment;
and if the down-conversion adjustment is still needed, controlling the first target compressor to perform down-conversion adjustment.
On the basis of the above embodiment, the device adjusting module is further configured to:
if the frequencies of the started compressors all reach the upper frequency increasing limit and the frequency increasing adjustment is still needed, determining whether a standby compressor which is not started exists;
if the standby compressor exists, controlling the standby compressor to be started and performing frequency-up regulation;
and if the standby compressor does not exist, keeping the current frequency running.
On the basis of the above embodiment, the device adjusting module is further configured to:
and when the upper frequency increasing limit is smaller than the highest frequency of the compressor, if the standby compressor does not exist, controlling the first target compressor to perform frequency increasing adjustment.
On the basis of the above embodiment, the device adjusting module is further configured to:
and controlling a second target compressor to perform frequency down regulation when the frequency regulation performed by the started compressor is determined to be frequency down regulation, wherein the second target compressor is the compressor with the longest running time.
On the basis of the above embodiment, the device adjusting module is further configured to:
in the case where the number of compressors turned on is one, the individual compressors are controlled to perform frequency adjustment in steps of a preset frequency value.
It should be noted that, in the embodiment of the compressor control device, the units and modules included in the embodiment are merely divided according to the functional logic, but are not limited to the above division as long as the corresponding functions can be realized; in addition, specific names of the functional units are only used for distinguishing one functional unit from another, and are not used for limiting the protection scope of the embodiments of the present application.
Fig. 5 is a schematic structural diagram of a compressor control apparatus according to an embodiment of the present application, and as shown in the drawing, the apparatus includes a processor 501, a memory 502, an input device 503, and an output device 504; the number of the processors 501 in the device may be one or more, and one processor 501 is taken as an example in the figure; the processor 501, the memory 502, the input device 503 and the output device 504 of the apparatus may be connected by a bus or other means, and the connection by the bus is taken as an example in the figure. The memory 502 is a computer-readable storage medium for storing software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the compressor control method in the embodiments of the present application. The processor 501 executes various functional applications of the apparatus and data processing by executing software programs, instructions and modules stored in the memory 502, that is, implements the above-described compressor control method. The input device 503 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the apparatus. The output device 504 may output a signal for frequency adjustment control.
The present application further provides a storage medium containing computer-executable instructions, where the computer-executable instructions are executed by a processor to perform a compressor control method described in the foregoing embodiments, and specifically includes:
determining a temperature difference parameter according to the target temperature and the initial outlet water temperature;
determining the starting number of the compressors according to the temperature difference parameters, and starting the compressors at a preset initial frequency;
acquiring real-time outlet water temperature after the compressor runs for a preset time;
determining a first frequency adjusting parameter of the compressor according to the target temperature and the real-time outlet water temperature; determining a second frequency adjusting parameter of the compressor according to the real-time outlet water temperature and the initial outlet water temperature;
and adjusting the frequency of the started compressor according to the first frequency adjusting parameter and the second frequency adjusting parameter.
Computer-readable storage media, including both permanent and non-permanent, removable and non-removable media, may implement the information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer-readable storage medium does not include transitory computer-readable media such as a modulated data signal and a carrier wave.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present application and the technical principles employed. It will be understood by those skilled in the art that the present application is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the application. Therefore, although the present application has been described in more detail with reference to the above embodiments, the present application is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present application, and the scope of the present application is determined by the scope of the appended claims.
Claims (12)
1. A compressor control method, comprising:
determining a temperature difference parameter according to the target temperature and the initial outlet water temperature;
determining the starting number of the compressors according to the temperature difference parameter, and starting the compressors at a preset initial frequency;
acquiring real-time outlet water temperature after the compressor runs for a preset time;
determining a first frequency adjusting parameter of the compressor according to the target temperature and the real-time outlet water temperature; determining a second frequency adjusting parameter of the compressor according to the real-time outlet water temperature and the initial outlet water temperature;
and adjusting the frequency of the started compressor according to the first frequency adjusting parameter and the second frequency adjusting parameter.
2. The compressor control method of claim 1, wherein the frequency adjusting the turned-on compressor according to the first frequency adjustment parameter and the second frequency adjustment parameter comprises:
acquiring the running information of the compressor, and determining the current running mode of the compressor according to the running information;
determining frequency adjustment information corresponding to the operation mode according to the operation mode;
determining a frequency variation value in the frequency adjustment information based on the first frequency adjustment parameter and the second frequency adjustment parameter;
wherein the frequency adjustment information includes a plurality of the frequency variation values corresponding to the first frequency adjustment parameter and the second frequency adjustment parameter.
3. The compressor control method according to claim 1 or 2, wherein the first frequency adjustment parameter includes a first adjustment step, a second adjustment step, a third adjustment step, and a fourth adjustment step;
the determining a frequency variation value in the frequency adjustment information based on the first frequency adjustment parameter and the second frequency adjustment parameter comprises:
when the real-time outlet water temperature is greater than the sum of the target temperature and the shutdown return difference temperature, the first frequency adjusting parameter is the first adjusting gear, and the compressor is controlled to be closed;
when the real-time outlet water temperature is higher than the target temperature and is lower than or equal to the sum of the target temperature and the shutdown return difference temperature, the first frequency adjusting parameter is the second adjusting gear, and the compressor is controlled to perform frequency reduction adjustment;
when the real-time outlet water temperature is greater than the difference between the target temperature and the start-up return difference temperature and is less than or equal to the target temperature, the first frequency adjustment parameter is the third adjustment gear, and the compressor is controlled to perform frequency-up adjustment;
and when the real-time outlet water temperature is less than or equal to the difference between the target temperature and the start-up return difference temperature, the first frequency adjusting parameter is the fourth adjusting gear, and the compressor is controlled to perform frequency-up adjustment.
4. The compressor control method according to claim 1, further comprising, after the frequency adjusting the turned-on compressor according to the first frequency adjustment parameter and the second frequency adjustment parameter:
under the condition that the number of the started compressors is at least two, controlling one of the compressors to perform frequency-up regulation on a first target compressor;
if the frequency of the first target compressor reaches a preset upper frequency increasing limit, determining whether the frequency of the started compressor still needs to be adjusted;
if the frequency rising adjustment is still needed, controlling the other compressor to carry out the frequency rising adjustment;
and if the down-conversion adjustment is still needed, controlling the first target compressor to perform the down-conversion adjustment.
5. The method as claimed in claim 4, wherein after determining whether the frequency adjustment of the turned-on compressor is still needed if the frequency of the first target compressor reaches the upper limit of the raised frequency, the method further comprises:
if the frequency of the started compressors reaches the upper frequency increasing limit and the frequency increasing adjustment is still needed, determining whether a standby compressor which is not started exists;
if the standby compressor exists, controlling the standby compressor to be started and performing frequency-up regulation;
and if the standby compressor does not exist, keeping the current frequency running.
6. The method as claimed in claim 5, wherein after determining whether there is a standby compressor that is not turned on if the frequency of the turned-on compressors reaches the upper frequency increasing limit and the frequency increasing adjustment is still needed, the method further comprises:
and when the frequency increasing upper limit is smaller than the highest frequency of the compressor, if the standby compressor does not exist, controlling the first target compressor to perform frequency increasing adjustment.
7. The compressor control method according to claim 1, further comprising, after the frequency adjusting the turned-on compressor according to the first frequency adjustment parameter and the second frequency adjustment parameter:
and controlling a second target compressor to perform frequency down regulation when the frequency regulation performed by the started compressor is determined to be frequency down regulation, wherein the second target compressor is the compressor with the longest operation time.
8. The compressor control method according to claim 1, further comprising, after the frequency adjusting the turned-on compressor according to the first frequency adjustment parameter and the second frequency adjustment parameter:
and controlling the single compressor to perform frequency adjustment by taking a preset frequency value as a step under the condition that the number of the started compressors is one.
9. The compressor control method according to claim 1, wherein the determining the number of the compressors to be turned on according to the temperature difference parameter and turning on the compressors at a preset initial frequency comprises:
setting temperature difference intervals corresponding to the total number according to the total number of the compressors in the unit, wherein different temperature difference intervals correspond to different starting numbers;
and when the temperature difference parameter is positioned in one of the temperature difference intervals, starting the compressors with the starting number corresponding to the temperature difference interval at the preset initial frequency.
10. A compressor control apparatus, characterized in that the apparatus comprises:
the first temperature acquisition module is configured to determine a temperature difference parameter according to a target temperature and an initial outlet water temperature;
the equipment starting module is configured to determine the starting number of the compressors according to the temperature difference parameter and start the compressors at a preset initial frequency;
the second temperature acquisition module is configured to acquire the real-time outlet water temperature after the compressor runs for a preset time;
the adjusting parameter determining module is configured to determine a first frequency adjusting parameter of the compressor according to the target temperature and the real-time outlet water temperature; determining a second frequency adjusting parameter of the compressor according to the real-time outlet water temperature and the initial outlet water temperature;
a frequency adjustment module configured to frequency adjust the activated compressor according to the first frequency adjustment parameter and the second frequency adjustment parameter.
11. A compressor control apparatus, characterized in that the apparatus comprises:
one or more processors;
a memory for storing one or more programs;
when executed by one or more of the processors, cause the one or more processors to implement the compressor control method of any one of claims 1-9.
12. A storage medium having computer-executable instructions stored thereon, wherein the computer-executable instructions, when executed by a processor, are configured to perform the compressor control method of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211024471.7A CN115325680A (en) | 2022-08-25 | 2022-08-25 | Compressor control method, device, equipment and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211024471.7A CN115325680A (en) | 2022-08-25 | 2022-08-25 | Compressor control method, device, equipment and storage medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115325680A true CN115325680A (en) | 2022-11-11 |
Family
ID=83926652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211024471.7A Pending CN115325680A (en) | 2022-08-25 | 2022-08-25 | Compressor control method, device, equipment and storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115325680A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101393426A (en) * | 2008-10-09 | 2009-03-25 | 南京五洲制冷集团有限公司 | Energy control method for modularization helical lobe compressor unit |
| CN109812949A (en) * | 2019-02-22 | 2019-05-28 | 广东欧科空调制冷有限公司 | A kind of load control method, device and the air-conditioning of multi-compressor unit |
| CN110793088A (en) * | 2019-10-29 | 2020-02-14 | 广东芬尼克兹节能设备有限公司 | Water temperature control method of heat pump system and heat pump system |
| CN111207481A (en) * | 2020-01-14 | 2020-05-29 | 珠海格力电器股份有限公司 | Water multi-connected system compressor frequency-up-down control method, storage medium and air conditioner |
| CN112556113A (en) * | 2020-11-30 | 2021-03-26 | 珠海格力电器股份有限公司 | Multi-module unit and control method and device thereof, storage medium and processor |
| US20210404686A1 (en) * | 2019-05-22 | 2021-12-30 | Gd Midea Air-Conditioning Equipment Co., Ltd. | Method for controlling window air conditioner |
-
2022
- 2022-08-25 CN CN202211024471.7A patent/CN115325680A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101393426A (en) * | 2008-10-09 | 2009-03-25 | 南京五洲制冷集团有限公司 | Energy control method for modularization helical lobe compressor unit |
| CN109812949A (en) * | 2019-02-22 | 2019-05-28 | 广东欧科空调制冷有限公司 | A kind of load control method, device and the air-conditioning of multi-compressor unit |
| US20210404686A1 (en) * | 2019-05-22 | 2021-12-30 | Gd Midea Air-Conditioning Equipment Co., Ltd. | Method for controlling window air conditioner |
| CN110793088A (en) * | 2019-10-29 | 2020-02-14 | 广东芬尼克兹节能设备有限公司 | Water temperature control method of heat pump system and heat pump system |
| CN111207481A (en) * | 2020-01-14 | 2020-05-29 | 珠海格力电器股份有限公司 | Water multi-connected system compressor frequency-up-down control method, storage medium and air conditioner |
| CN112556113A (en) * | 2020-11-30 | 2021-03-26 | 珠海格力电器股份有限公司 | Multi-module unit and control method and device thereof, storage medium and processor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109373538B (en) | Outdoor fan control method and device and air conditioner | |
| CN105387570A (en) | Execution capacity adjusting method and device of water chilling unit | |
| CN109236622B (en) | Compressor frequency control method and device and air conditioner | |
| CN112665132B (en) | Air conditioning system, energy-saving control method and device for cooling side of air conditioning system and controller | |
| CN115492674A (en) | Control method and device for electric water pump and cooling fan | |
| CN115059992B (en) | Air conditioner control method, controller, air conditioner and storage medium | |
| CN113739345A (en) | Oil return control method, device, equipment and storage medium | |
| CN118156687A (en) | Control method of battery thermal management system, readable storage medium and device | |
| CN113028571B (en) | Compressor control method and device of machine room air conditioner, air conditioner and medium | |
| CN113587384A (en) | Control method and device of air conditioner, air conditioner and storage medium | |
| CN115325680A (en) | Compressor control method, device, equipment and storage medium | |
| CN116066981A (en) | Air conditioner control method and device, air conditioner and readable storage medium | |
| CN113390205B (en) | Oil return control method of household appliance, household appliance and computer readable storage medium | |
| CN113891631A (en) | Condensing fan control method and device, air conditioner and readable storage medium | |
| CN110542191A (en) | Operation control method, operation control device, air conditioner, and storage medium | |
| CN114199071B (en) | Control method of refrigerating system, electronic equipment and computer readable storage medium | |
| CN115930398B (en) | Control method of one-to-many air conditioner, storage medium and one-to-many air conditioner | |
| CN110542184B (en) | Operation control method, operation control device, air conditioner, and storage medium | |
| CN113932364B (en) | Control method of air conditioner and air conditioner | |
| CN113685991B (en) | Control method and device for intelligent air conditioner and intelligent air conditioner | |
| CN113606758B (en) | Control method, control device and outdoor controller of air conditioner | |
| CN118361828B (en) | Method and device for controlling air conditioner | |
| CN116972590A (en) | Control method, device and equipment for online temperature control of multiple air coolers | |
| CN117490201A (en) | Air conditioner operation method and device, air conditioner and storage medium | |
| CN116105295A (en) | Quick start adjusting method and device for air conditioner, air conditioner and storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |