CN112665105A - Air conditioner operation control method, control device, air conditioner and storage medium - Google Patents
Air conditioner operation control method, control device, air conditioner and storage medium Download PDFInfo
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- CN112665105A CN112665105A CN202011534655.9A CN202011534655A CN112665105A CN 112665105 A CN112665105 A CN 112665105A CN 202011534655 A CN202011534655 A CN 202011534655A CN 112665105 A CN112665105 A CN 112665105A
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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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
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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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/37—Resuming operation, e.g. after power outages; Emergency starting
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/52—Indication arrangements, e.g. displays
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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
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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
- 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
Abstract
The invention discloses an air conditioner operation control method, a control device, an air conditioner and a storage medium, wherein the air conditioner operation control method comprises the following steps: when an abnormal compressor appears in an outdoor unit of an air conditioner, the abnormal compressor is restarted successively; in the process of successive restarting, sequentially reducing the operation parameter values of the abnormal compressor to search the safe operation range of the abnormal compressor; when the abnormal compressor is found out, stopping restarting and controlling the abnormal compressor to operate in the safe operation range; and when the abnormal compressor is not found, controlling the abnormal compressor to stop running. According to the invention, when the safe operation range of the abnormal compressor is found, the abnormal compressor is controlled to operate in the safe operation range, and when the abnormal compressor is not found, the abnormal compressor is controlled to stop, so that the problem that the compressor is completely damaged due to the fact that the comfortable experience of the air conditioner is greatly reduced or the compressor is forced to operate in the unsafe operation range caused by the unreasonable air conditioner treatment scheme when the compressor is abnormal is effectively solved.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner operation control method, an air conditioner operation control device, an air conditioner and a storage medium.
Background
The compressor is often shut down due to over-current protection caused by excessive current. There are many reasons for overcurrent protection, and except for the compressor itself, there are many times that the overcurrent protection is caused by abnormal wear and the like. After overcurrent protection appears, the existing air conditioner product treatment scheme mainly comprises the following steps: neglecting the fault, and directly restarting the compressor to continue running; and secondly, the compressor is considered to be damaged, and shutdown treatment is carried out.
According to the scheme I, after the compressor is restarted, overcurrent protection still exists, the compressor is restarted continuously, the unit fault cannot be processed in time, and finally the compressor is damaged. In the second scheme, although the compressor is subjected to overcurrent protection, the compressor can continue to operate when the current of the compressor is reduced as long as the load of the compressor is reduced, and the comfortable experience of the air conditioner is greatly reduced due to direct shutdown treatment.
The prior art does not give an effective solution to the above-mentioned problems caused by compressor overcurrent protection.
Disclosure of Invention
The embodiment of the invention provides an air conditioner operation control method, a control device, an air conditioner and a storage medium, which are used for at least solving the problem that the comfort experience of the air conditioner is improved when the compressor is abnormal and the compressor is prevented from being damaged.
In a first aspect, the present invention provides an air conditioner operation control method, including:
when an abnormal compressor appears in an outdoor unit of an air conditioner, the abnormal compressor is restarted successively;
in the process of successive restarting, sequentially reducing the operation parameter values of the abnormal compressor to search the safe operation range of the abnormal compressor;
when the abnormal compressor is found out, stopping restarting and controlling the abnormal compressor to operate in the safe operation range;
and when the abnormal compressor is not found, controlling the abnormal compressor to stop running.
Optionally, in the process of successive restarting, sequentially reducing the operation parameter values of the abnormal compressor to find the safe operation range of the abnormal compressor includes:
in the process of successive restarting, reducing the operation parameter value of the abnormal compressor according to a preset parameter adjustment value;
when the abnormal compressor is recovered to be normal from abnormal after one-time restarting and the operation parameter value of the abnormal compressor is larger than the minimum parameter value of the abnormal compressor, determining to find out the safe operation range of the abnormal compressor;
after the abnormal compressor is restarted successively, when the abnormal compressor is not recovered to be normal from the abnormal state and the operation parameter value of the abnormal compressor is not larger than the minimum parameter value of the abnormal compressor, determining that the safe operation range of the abnormal compressor is not found;
the operating parameter values include an operating frequency value and/or an operating current value.
Optionally, when an abnormal compressor occurs in an outdoor unit of an air conditioner, the gradually restarting the abnormal compressor includes:
when the outdoor unit contains 1 compressor and the compressor is abnormal, the abnormal compressor is restarted successively;
when the outdoor unit comprises at least 2 compressors and an abnormal compressor occurs in the outdoor unit, if a normal compressor in the outdoor unit can meet the requirement of a first air conditioner indoor unit in operation, controlling the abnormal compressor to stop operating; and if the normal compressor in the outdoor unit can not meet the requirement of the first indoor unit of the air conditioner, the abnormal compressor is restarted gradually.
Optionally, if the normal compressor in the outdoor unit cannot meet the requirement of the first indoor unit of the air conditioner, the method of restarting the abnormal compressor successively includes:
if the normal compressor in the outdoor unit can not meet the requirement of the first air-conditioning indoor unit, the first air-conditioning indoor unit requirement is preferentially distributed to the normal compressor, when the normal compressor can not meet the requirement of the first air-conditioning indoor unit, the unallocated requirement in the first air-conditioning indoor unit requirement is distributed to the abnormal compressor, and the abnormal compressor is restarted gradually.
Optionally, the successively restarting the abnormal compressor includes:
when the air conditioner comprises at least 2 outdoor units, if the outdoor unit without the abnormal compressor meets the requirement of a second indoor unit of the air conditioner, controlling the outdoor unit with the abnormal compressor to stop running; and if the outdoor unit without the abnormal compressor does not meet the requirement of the second indoor unit of the air conditioner, the abnormal compressor in the outdoor unit with the abnormal compressor is restarted successively.
Optionally, if the outdoor unit without the abnormal compressor does not meet the requirement of the second indoor unit of the air conditioner, the successively restarting the abnormal compressor in the outdoor unit with the abnormal compressor includes:
if the outdoor unit without the abnormal compressor does not meet the requirement of the second air-conditioning indoor unit, the requirement of the second air-conditioning indoor unit is preferentially distributed to the outdoor unit without the abnormal compressor, and when the outdoor unit without the abnormal compressor cannot meet the requirement of the second air-conditioning indoor unit, the unallocated requirement of the second air-conditioning indoor unit is distributed to the outdoor unit with the abnormal compressor, and the abnormal compressor in the outdoor unit with the abnormal compressor is restarted successively.
Optionally, when the outdoor unit without the abnormal compressor meets the requirement of the second indoor unit of the air conditioner, before controlling the outdoor unit with the abnormal compressor to stop operating, the method includes:
determining the ratio of the total capacity of the indoor unit of the air conditioner in the running state to the ratio of the outdoor unit without the abnormal compressor;
and determining whether the outdoor unit without the abnormal compressor meets the requirement of the second indoor unit of the air conditioner or not according to the ratio and a preset capacity judgment threshold.
Optionally, the air conditioner operation control method further includes:
if the outdoor unit without the abnormal compressor meets the requirement of the second indoor unit of the air conditioner, controlling the outdoor unit with the abnormal compressor to stop running and sending a first-grade warning fault signal;
and when the safe operation range of the abnormal compressor is not found, controlling the abnormal compressor to stop operating and sending a second-level warning fault signal.
In a second aspect, the present invention provides an air conditioning operation control device including:
the restarting module is used for restarting the abnormal compressor one by one when the abnormal compressor appears in an outdoor unit of the air conditioner;
the adjusting module is used for sequentially reducing the operation parameter values of the abnormal compressor in the process of successive restarting so as to search the safe operation range of the abnormal compressor;
the control module is used for stopping restarting and controlling the abnormal compressor to operate in the safe operation range when the abnormal compressor is found out; and when the abnormal compressor is not found, controlling the abnormal compressor to stop running.
In a third aspect, the present invention provides an air conditioner including the air conditioner operation control device as described above.
In a fourth aspect, the present invention provides a computer-readable storage medium having stored thereon an air-conditioning operation control program that, when executed by a processor, implements the steps of the air-conditioning operation control method as set forth in any one of the above.
By applying the technical scheme of the invention, the safe operation range of the abnormal compressor is searched by gradually restarting the abnormal compressor and sequentially reducing the operation parameter values of the abnormal compressor, so that the abnormal compressor is controlled to operate in the safe operation range, and when the safe operation range of the abnormal compressor is not found, the abnormal compressor is controlled to stop, thereby effectively solving the problem that the compressor is completely damaged due to the fact that the comfortable experience of the air conditioner is greatly reduced or the safe operation range is forced to operate when the compressor is abnormal and the air conditioner processing scheme is unreasonable.
Drawings
Fig. 1 is a flowchart of an alternative air conditioner operation control method according to an embodiment of the present invention.
Fig. 2 is a flowchart of another alternative air conditioner operation control method according to an embodiment of the present invention;
fig. 3 is a schematic diagram of an air conditioner operation control apparatus according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific embodiments, it being understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention.
In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for facilitating the explanation of the present invention, and have no specific meaning in itself. Thus, "module", "component" or "unit" may be used mixedly.
Example one
An embodiment of the present invention provides an air conditioner operation control method, as shown in fig. 1, the air conditioner operation control method includes:
s101, when an abnormal compressor occurs in an outdoor unit of an air conditioner, the abnormal compressor is restarted successively;
s102, in the process of successive restarting, sequentially reducing the operation parameter values of the abnormal compressor to search the safe operation range of the abnormal compressor;
s103, when the abnormal compressor is found out, the restarting is stopped, and the abnormal compressor is controlled to operate in the safe operation range;
and S104, controlling the abnormal compressor to stop running when the abnormal compressor is not found.
Wherein the abnormality may be that the compressor is in an overcurrent protection state. The operating parameter values include an operating frequency value and/or an operating current value. Successive may also be described as sequential.
According to the embodiment of the invention, the abnormal compressor is restarted one by one, and the operation parameter values of the abnormal compressor are reduced in sequence, so that the safe operation range of the abnormal compressor is searched, the abnormal compressor is further controlled to operate within the safe operation range, and when the safe operation range of the abnormal compressor is not found, the abnormal compressor is controlled to stop, and the problem that the compressor is completely damaged due to the fact that the comfortable experience of the air conditioner is greatly reduced or the compressor is forced to operate within the unsafe operation range caused by the fact that the air conditioner is abnormal and the air conditioner processing scheme is unreasonable is effectively solved.
In some embodiments, the sequentially decreasing the operation parameter values of the abnormal compressor during the gradual restart process to find the safe operation range of the abnormal compressor includes:
in the process of successive restarting, reducing the operation parameter value of the abnormal compressor according to a preset parameter adjustment value;
when the abnormal compressor is recovered to be normal from abnormal after one-time restarting and the operation parameter value of the abnormal compressor is larger than the minimum parameter value of the abnormal compressor, determining to find out the safe operation range of the abnormal compressor;
and when the abnormal compressor is not recovered to be normal from the abnormal state after the successive restarting and the operation parameter value of the abnormal compressor is not larger than the minimum parameter value of the abnormal compressor, determining that the safe operation range of the abnormal compressor is not found. The parameter adjustment value may be set according to an operating parameter maximum value of the compressor, for example, 5%, 10%, 15%, or 20% of the operating parameter maximum value. The parameters include frequency, current, etc.
When an abnormal compressor occurs in an outdoor unit of an air conditioner, the abnormal compressor is restarted successively, and the method optionally includes:
when the outdoor unit contains 1 compressor and the compressor is abnormal, the abnormal compressor is restarted successively;
when the outdoor unit comprises at least 2 compressors and an abnormal compressor occurs in the outdoor unit, if a normal compressor in the outdoor unit can meet the requirement of a first air conditioner indoor unit in operation, controlling the abnormal compressor to stop operating; and if the normal compressor in the outdoor unit can not meet the requirement of the first indoor unit of the air conditioner, the abnormal compressor is restarted gradually.
If the normal compressor in the outdoor unit can not meet the requirement of the first indoor unit of the air conditioner, the abnormal compressor is restarted successively, and the method optionally comprises the following steps:
if the normal compressor in the outdoor unit can not meet the requirement of the first air-conditioning indoor unit, the first air-conditioning indoor unit requirement is preferentially distributed to the normal compressor, when the normal compressor can not meet the requirement of the first air-conditioning indoor unit, the unallocated requirement in the first air-conditioning indoor unit requirement is distributed to the abnormal compressor, and the abnormal compressor is restarted gradually.
In some embodiments, before the restarting the abnormal compressor in series, the method includes:
when the air conditioner comprises at least 2 outdoor units, if the outdoor unit without the abnormal compressor meets the requirement of a second indoor unit of the air conditioner, controlling the outdoor unit with the abnormal compressor to stop running; and if the outdoor unit without the abnormal compressor does not meet the requirement of the second indoor unit of the air conditioner, the abnormal compressor in the outdoor unit with the abnormal compressor is restarted successively.
Among them, an air conditioner (i.e., an air conditioning system) includes various numbers of outdoor units, one outdoor unit is called a stand-alone unit, and at least 2 outdoor units are called a module.
The operation adjusting control method in the embodiment of the invention fully considers the factors such as the number of outdoor units, the capacity of the operated indoor units, the number of compressors contained in an abnormal compressor unit (outdoor unit) and the like, and formulates the most reasonable control scheme: on the premise that the requirement of the indoor unit can be met without continuously running, the abnormal compressor is stopped and a fault code display mode is used for informing a user through a line controller, a unit main control board and the like; when the abnormal compressor is stopped and the requirement of the indoor unit of the air conditioner cannot be met directly, starting operation is tried, the minimum load or no load of the abnormal compressor is distributed as much as possible, and the safe operation range of the abnormal compressor is searched in a continuous frequency reduction mode, so that the phenomenon that the requirement of the air conditioner of a user is directly supplied by interruption can be avoided.
In addition, if the installed capacity is relatively small, that is, the capacity of the indoor unit is relatively small, that is, the capacity of the outdoor unit is relatively large, there may be 1 outdoor unit which is abnormal at this time, but even if the outdoor unit does not work, the remaining outdoor units still can meet the capacity requirement of the running indoor unit, and at this time, the outdoor unit can be shut down to process, and a prompt is given to enable the user to maintain as early as possible. On the contrary, the installed capacity is large, the demand of the indoor unit is high, the outdoor unit is directly shut down to process the outdoor unit, the capacity demand of the running indoor unit cannot be met by the residual outdoor unit, the outdoor unit needs to be run at the moment, and the use demand of a user is guaranteed as far as possible within the safe running range.
Optionally, if the outdoor unit without the abnormal compressor does not meet the requirement of the second indoor unit of the air conditioner, the successively restarting the abnormal compressor in the outdoor unit with the abnormal compressor includes:
if the outdoor unit without the abnormal compressor can not meet the requirement of the second air-conditioning indoor unit, the requirement of the second air-conditioning indoor unit is preferentially distributed to the outdoor unit without the abnormal compressor, if the outdoor unit without the abnormal compressor can not meet the requirement of the second air-conditioning indoor unit, the demand which is not distributed in the requirement of the second air-conditioning indoor unit is distributed to the outdoor unit with the abnormal compressor, and the abnormal compressor in the outdoor unit with the abnormal compressor is restarted successively,
if the outdoor unit without the abnormal compressor meets the requirement of the second indoor unit of the air conditioner, before the outdoor unit with the abnormal compressor is controlled to stop running, optionally including:
determining the ratio of the total capacity of the running air conditioner indoor units in a running state to the ratio of the outdoor units without abnormal compressors;
and determining whether the outdoor unit without the abnormal compressor meets the requirement of the second indoor unit of the air conditioner or not according to the ratio and a preset capacity judgment threshold.
Optionally, the air conditioner operation control method further includes:
the air conditioner operation control method further includes:
if the outdoor unit without the abnormal compressor meets the requirement of the second indoor unit of the air conditioner, controlling the outdoor unit with the abnormal compressor to stop running, and sending a first-grade warning fault signal G1;
and when the safe operation range of the abnormal compressor is not found, controlling the abnormal compressor to stop operating, and sending a second-level warning fault signal G2.
That is, different prompt levels G1 and G2 can be assigned, G1 is a general reminder, and the user is informed that the unit is abnormal and needs to be processed as soon as possible; and G2 is an emergency prompt for prompting the user that the fault cannot be ignored and the horse standing treatment is needed.
In an embodiment of the invention, the operating parameter value comprises an operating frequency value and/or an operating current value. Wherein the operating frequency of the compressor after restart is not higher than the pre-fault frequency. The frequency determination can be replaced by a method of controlling the current value, i.e. restarting the compressor after a fault: and after restarting, controlling the current value to be smaller than the current before the fault, when the current value approaches to a certain degree, the frequency of the press is not increased any more, after the fault occurs again, controlling the current to be smaller than the current before the fault by a certain value, and performing cyclic control.
A specific embodiment is provided below by the operating frequency.
As shown in fig. 2, the air conditioning operation control method in the present embodiment includes:
and step 1, the over-current fault of the compressor occurs.
And 2, judging whether the number of the outdoor units is not less than 2. Different control is carried out according to the number of the contained outdoor units, namely, two different control schemes are provided for a single unit (the number of the outdoor units in the system is 1) and a modularization (the number of the outdoor units is more than or equal to 2).
And 3, if the unit is a single unit, considering the requirements of the indoor unit, starting the unit to operate after a fault occurs, and judging whether the number of the compressors is not less than two.
And 4, if the number of the compressors is more than or equal to two, preferentially enabling the abnormal compressors to work, if the abnormal compressors cannot meet the requirements of users, trying to restart the abnormal compressors, and executing the step 6.
And 5, directly trying to restart if the number of the compressors is one. Step 6 is performed.
And 6, according to the running frequency f1 of the compressor before the fault, the compressor is restarted and then runs according to (f 1-delta f), if the fault is still reported after the compressor is restarted, the frequency is continuously reduced to run, the preset frequency adjustment value delta f (namely the parameter adjustment value) is reduced each time until the unit fails to report the fault, the current frequency running is maintained at the moment, the current configuration is stored, the follow-up is executed all the time, and the judgment is carried out again after the power is cut off again and the power is turned on. Step 10 is performed.
And step 10, judging whether the stable operation frequency after the compressor is subjected to frequency reduction is not less than the lowest frequency fb. If yes, go to step 9, otherwise go to step 11.
And step 11, if the abnormal compressor is reduced to the lowest frequency fb, still reporting a fault, indicating that the compressor cannot be safely operated, and performing shutdown treatment.
And step 12, sending out a warning fault signal G2, displaying the warning fault signal on an online controller, a unit main control board and the like, and prompting a user to process the warning fault signal immediately.
And 7, if the modular outdoor unit is modularized, the unit judges the ratio of the capacity of the startup indoor unit to the total capacity of the non-fault outdoor unit (except the abnormal outdoor unit of the compressor), and judges whether the ratio is smaller than a preset A (such as 80%).
And 8, the user requirements can be ensured without restarting the abnormal unit of the compressor, and the abnormal outdoor unit of the compressor is stopped according to the safest processing scheme.
And 9, sending a warning fault signal G1, displaying the warning fault signal on an online controller, a unit main control board and the like, and prompting a user to maintain as soon as possible.
And step 13, if the ratio is greater than A (such as 80%), directly stopping the abnormal outdoor unit of the press, which has great influence on the cooling/heating requirements of users, and trying to start up the press to operate in a safe operation range in order to reduce the influence.
And step 14, preferentially distributing the abnormal outdoor units, and after the full capacity of the abnormal outdoor units is distributed, distributing the abnormal outdoor units to the abnormal outdoor units (namely the outdoor units containing the abnormal compressors).
And step 15, preferentially distributing the abnormal outdoor unit to the abnormal compressor, and distributing the abnormal outdoor unit to the abnormal compressor after the full capacity of the abnormal compressor is distributed. The trying mode is as follows: according to the operation frequency f1 of the compressor before the fault, the unit is restarted and then operated according to (f 1-delta f), if the fault is still reported after the restart, the frequency is continuously reduced to operate, the delta f is reduced each time, until the fault is not reported by the unit, the current frequency operation is maintained at the moment, the current configuration is stored, the follow-up is executed all the time, and the judgment is carried out again after the power is cut off again and the power is turned on. And step 10 is executed, if the abnormal press is reduced to the lowest frequency fb and still reports a fault, the press cannot run safely, shutdown processing is carried out, and a G2 prompt is sent to allow a user to process the press immediately.
The air conditioner operation control method of the embodiment takes the factors of the number of modules in the system, the capacity of the indoor unit when the air conditioner is started, the number of compressors contained in the abnormal outdoor unit and the like into full consideration, and a most reasonable control scheme is formulated: on the premise that the requirement of a user can be met without continuously running, the abnormal compressor is stopped and the user is informed of the abnormal compressor in a fault code display mode through a line controller, a unit main control board and the like; when the abnormal compressor is stopped and user requirements cannot be met directly, starting operation is tried, the minimum load or no load of the abnormal compressor is distributed as much as possible, and the safe operation range of the abnormal compressor is searched in a continuous frequency reduction mode, so that the phenomenon that the air conditioner requirements of users are directly disconnected can be avoided, meanwhile, if the frequency of the compressor is reduced to a very low value and faults are still reported, the compressor cannot normally operate, the compressor is stopped, the compressor is prevented from being continuously operated and being thoroughly damaged, the damaged compressor affects other units, and the influence is prevented from being enlarged.
In the embodiment, the installed ratio is fully considered, if the capacity of the indoor unit is smaller and the installed capacity of the outdoor unit is larger, 1 outdoor unit may be abnormal at this time, but even if the outdoor unit does not work, the remaining outdoor units still can meet the capacity requirement of starting the indoor unit, and then the outdoor unit can be shut down to process, and a prompt is sent to enable a user to maintain as early as possible. On the contrary, the capacity of the outdoor unit is large, the indoor units are in more demands, the outdoor unit is directly shut down to process, the capacity demand of the indoor units during starting up cannot be met by the rest outdoor units, and at the moment, the outdoor unit needs to be operated, so that the use demand of users is guaranteed as much as possible within a safe operation range.
The embodiment can also be divided into different prompt levels G1 and G2, wherein G1 is a general prompt for informing a user that the unit is abnormal and needs to be processed as soon as possible; and G2 is an emergency prompt for prompting the user that the fault cannot be ignored and the horse standing treatment is needed.
When the compressor fails, the operation scheme is adjusted, if the requirement of the indoor unit can be guaranteed without an abnormal compressor, the compressor is stopped, the operation safety of the unit is guaranteed, if the user requirement is greatly influenced by non-operation, the compressor tries to operate in the safety range of the abnormal compressor, the requirement capacity of the indoor unit is guaranteed to the maximum extent, and the air conditioner comfort influence caused by the abnormal compressor is reduced to the minimum. Meanwhile, after the abnormal compressor is judged to be incapable of being started and operated safely, the abnormal compressor is stopped in time and informed to a user, so that the serious adverse effect caused by complete damage is prevented.
Example two
An embodiment of the present invention provides an air conditioner operation control device, including:
the restarting module 20 is used for restarting the abnormal compressor one by one when the abnormal compressor appears in the outdoor unit of the air conditioner;
the adjusting module 22 is configured to sequentially reduce the operation parameter values of the abnormal compressor during the successive restart process, so as to search for a safe operation range of the abnormal compressor;
the control module 24 is used for stopping restarting and controlling the abnormal compressor to operate in the safe operation range when the abnormal compressor is found out; and when the abnormal compressor is not found, controlling the abnormal compressor to stop running.
Optionally, the adjusting module 22 is specifically configured to reduce an operation parameter value of the abnormal compressor according to a preset parameter adjustment value in the process of successive restart; when the abnormal compressor is recovered to be normal from abnormal after one-time restarting and the operation parameter value of the abnormal compressor is larger than the minimum parameter value of the abnormal compressor, determining to find out the safe operation range of the abnormal compressor; after the abnormal compressor is restarted successively, when the abnormal compressor is not recovered to be normal from the abnormal state and the operation parameter value of the abnormal compressor is not larger than the minimum parameter value of the abnormal compressor, determining that the safe operation range of the abnormal compressor is not found;
wherein the operating parameter values comprise operating frequency values and/or operating current values.
Optionally, the restart module 20 is specifically configured to, when the outdoor unit includes 1 compressor and the compressor is abnormal, restart the abnormal compressor successively; when the outdoor unit comprises at least 2 compressors and an abnormal compressor occurs in the outdoor unit, if a normal compressor in the outdoor unit can meet the requirement of a first air conditioner indoor unit in operation, controlling the abnormal compressor to stop operating; and if the normal compressor in the outdoor unit can not meet the requirement of the first indoor unit of the air conditioner, the abnormal compressor is restarted gradually.
Wherein, if normal compressor can not satisfy in this off-premises station the demand of first air conditioning indoor set, to the unusual compressor restarts gradually, includes:
if the normal compressor in the outdoor unit can not meet the requirement of the first air-conditioning indoor unit, the first air-conditioning indoor unit requirement is preferentially distributed to the normal compressor, when the normal compressor can not meet the requirement of the first air-conditioning indoor unit, the unallocated requirement in the first air-conditioning indoor unit requirement is distributed to the abnormal compressor, and the abnormal compressor is restarted gradually.
In some embodiments, the restart module 20 is configured to, when the abnormal compressor is restarted successively, specifically, when the air conditioner includes at least 2 outdoor units, if an outdoor unit that does not include the abnormal compressor meets a requirement of an operating second air conditioner indoor unit, control the outdoor unit that includes the abnormal compressor to stop operating; and if the outdoor unit without the abnormal compressor does not meet the requirement of the second indoor unit of the air conditioner, the abnormal compressor in the outdoor unit with the abnormal compressor is restarted successively.
Optionally, if the outdoor unit without the abnormal compressor does not meet the requirement of the second indoor unit of the air conditioner, the successively restarting the abnormal compressor in the outdoor unit with the abnormal compressor includes:
if the outdoor unit without the abnormal compressor does not meet the requirement of the second air-conditioning indoor unit, the requirement of the second air-conditioning indoor unit is preferentially distributed to the outdoor unit without the abnormal compressor, and when the outdoor unit without the abnormal compressor cannot meet the requirement of the second air-conditioning indoor unit, the demand which is not distributed in the requirement of the second air-conditioning indoor unit is distributed to the outdoor unit with the abnormal compressor, and the abnormal compressor in the outdoor unit with the abnormal compressor is restarted successively.
Optionally, when the outdoor unit without the abnormal compressor meets the requirement of the second indoor unit of the air conditioner, before controlling the outdoor unit with the abnormal compressor to stop operating, the method includes:
determining the ratio of the total capacity of the indoor unit of the air conditioner in the running state to the ratio of the outdoor unit without the abnormal compressor;
and determining whether the outdoor unit without the abnormal compressor meets the requirement of the second indoor unit of the air conditioner or not according to the ratio and a preset capacity judgment threshold.
In some embodiments, the control module 24 is further configured to control the outdoor unit including the abnormal compressor to stop operating and send a first-level warning fault signal if the outdoor unit including no abnormal compressor meets the requirement of the second indoor unit of the air conditioner;
and when the safe operation range of the abnormal compressor is not found, controlling the abnormal compressor to stop operating and sending a second-level warning fault signal.
EXAMPLE III
The embodiment of the invention provides an air conditioner, which comprises the air conditioner operation control device in the second embodiment.
Example four
An embodiment of the present invention provides a computer-readable storage medium, in which an air conditioner operation control program is stored, and the air conditioner operation control program, when executed by a processor, implements the steps of the air conditioner operation control method according to any one of the embodiments.
In the specific implementation process, reference may be made to embodiment one in embodiments two to four of the present invention, which have corresponding technical effects.
From the above description, it can be known that the embodiments of the present invention mainly solve the problem that when the compressor is abnormal, the comfortable experience of the air conditioner is greatly reduced due to the unreasonable air conditioning processing scheme, or the compressor is completely damaged due to the forced operation of the compressor in the unsafe operation range. And a brand new operation control scheme is provided when the compressor of the multi-outdoor unit parallel air conditioning system is abnormal, so that the air conditioner is ensured to be in a safe operation range, and the user requirements are met to the greatest extent.
The main core points of the invention are as follows: restarting the abnormal compressor one by one; in the process of successive restarting, the operation parameter values of the abnormal compressor are sequentially reduced, so that the safe operation range of the abnormal compressor is searched; when the abnormal compressor is found out, stopping restarting and controlling the abnormal compressor to operate in the safe operation range; and when the abnormal compressor is not found, controlling the abnormal compressor to stop running. The invention can achieve the following effects: after the compressor is ensured to be abnormal, the compressor is restarted again and works in a safe operation range, and uncomfortable influence caused by the abnormal compressor is reduced to the maximum extent. And through parameter judgment, when the compressor can not continuously and safely operate, the compressor is stopped.
It should be noted that, in this document, 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 phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
While the present invention has been described with reference to the embodiments illustrated in the drawings, the present invention is not limited to the embodiments, which are illustrative rather than restrictive, and it will be apparent to those skilled in the art that many more modifications and variations can be made without departing from the spirit of the invention and the scope of the appended claims.
Claims (11)
1. An air conditioner operation control method, characterized by comprising:
when an abnormal compressor appears in an outdoor unit of an air conditioner, the abnormal compressor is restarted successively;
in the process of successive restarting, sequentially reducing the operation parameter values of the abnormal compressor to search the safe operation range of the abnormal compressor;
when the abnormal compressor is found out, stopping restarting and controlling the abnormal compressor to operate in the safe operation range;
and when the abnormal compressor is not found, controlling the abnormal compressor to stop running.
2. The air conditioner operation control method according to claim 1, wherein the sequentially reducing the operation parameter values of the abnormal compressor during the successive restart process to find the safe operation range of the abnormal compressor comprises:
in the process of successive restarting, reducing the operation parameter value of the abnormal compressor according to a preset parameter adjustment value;
when the abnormal compressor is recovered to be normal from abnormal after one-time restarting and the operation parameter value of the abnormal compressor is larger than the minimum parameter value of the abnormal compressor, determining to find out the safe operation range of the abnormal compressor;
after the abnormal compressor is restarted successively, when the abnormal compressor is not recovered to be normal from the abnormal state and the operation parameter value of the abnormal compressor is not larger than the minimum parameter value of the abnormal compressor, determining that the safe operation range of the abnormal compressor is not found;
the operating parameter values include an operating frequency value and/or an operating current value.
3. The method of claim 1, wherein the sequentially restarting the abnormal compressor when the abnormal compressor occurs in the outdoor unit of the air conditioner comprises:
when the outdoor unit contains 1 compressor and the compressor is abnormal, the abnormal compressor is restarted successively;
when the outdoor unit comprises at least 2 compressors and an abnormal compressor occurs in the outdoor unit, if a normal compressor in the outdoor unit can meet the requirement of a first air conditioner indoor unit in operation, controlling the abnormal compressor to stop operating; and if the normal compressor in the outdoor unit can not meet the requirement of the first indoor unit of the air conditioner, the abnormal compressor is restarted gradually.
4. The method of claim 3, wherein if the normal compressor of the outdoor unit fails to meet the demand of the first indoor unit of the air conditioner, the gradually restarting the abnormal compressor comprises:
if the normal compressor in the outdoor unit can not meet the requirement of the first air-conditioning indoor unit, the first air-conditioning indoor unit requirement is preferentially distributed to the normal compressor, when the normal compressor can not meet the requirement of the first air-conditioning indoor unit, the unallocated requirement in the first air-conditioning indoor unit requirement is distributed to the abnormal compressor, and the abnormal compressor is restarted gradually.
5. The air conditioner operation control method according to any one of claims 1 to 4, wherein the successively restarting the abnormal compressor includes:
when the air conditioner comprises at least 2 outdoor units, if the outdoor unit without the abnormal compressor meets the requirement of a second indoor unit of the air conditioner, controlling the outdoor unit with the abnormal compressor to stop running; and if the outdoor unit without the abnormal compressor does not meet the requirement of the second indoor unit of the air conditioner, the abnormal compressor in the outdoor unit with the abnormal compressor is restarted successively.
6. The method of claim 5, wherein the sequentially restarting the abnormal compressor in the outdoor unit including the abnormal compressor if the outdoor unit not including the abnormal compressor does not satisfy the second indoor unit demand of the air conditioner, comprises:
if the outdoor unit without the abnormal compressor does not meet the requirement of the second air-conditioning indoor unit, the requirement of the second air-conditioning indoor unit is preferentially distributed to the outdoor unit without the abnormal compressor, and when the outdoor unit without the abnormal compressor cannot meet the requirement of the second air-conditioning indoor unit, the unallocated requirement of the second air-conditioning indoor unit is distributed to the outdoor unit with the abnormal compressor, and the abnormal compressor in the outdoor unit with the abnormal compressor is restarted successively.
7. The method of claim 6, wherein before controlling the outdoor unit having the abnormal compressor to stop operating when the outdoor unit having no abnormal compressor meets the requirement of the second indoor unit of the air conditioner, the method comprises:
determining the ratio of the total capacity of the indoor unit of the air conditioner in the running state to the ratio of the outdoor unit without the abnormal compressor;
and determining whether the outdoor unit without the abnormal compressor meets the requirement of the second indoor unit of the air conditioner or not according to the ratio and a preset capacity judgment threshold.
8. The air conditioning operation control method according to claim 6, further comprising:
if the outdoor unit without the abnormal compressor meets the requirement of the second indoor unit of the air conditioner, controlling the outdoor unit with the abnormal compressor to stop running and sending a first-grade warning fault signal;
and when the safe operation range of the abnormal compressor is not found, controlling the abnormal compressor to stop operating and sending a second-level warning fault signal.
9. An air conditioning operation control device, characterized by comprising:
the restarting module is used for restarting the abnormal compressor one by one when the abnormal compressor appears in an outdoor unit of the air conditioner;
the adjusting module is used for sequentially reducing the operation parameter values of the abnormal compressor in the process of successive restarting so as to search the safe operation range of the abnormal compressor;
the control module is used for stopping restarting and controlling the abnormal compressor to operate in the safe operation range when the abnormal compressor is found out; and when the abnormal compressor is not found, controlling the abnormal compressor to stop running.
10. An air conditioner characterized by comprising the air conditioner operation control device according to claim 9.
11. A computer-readable storage medium, having stored thereon an air-conditioning operation control program which, when executed by a processor, implements the steps of the air-conditioning operation control method according to any one of claims 1 to 8.
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| CN202011534655.9A CN112665105A (en) | 2020-12-22 | 2020-12-22 | Air conditioner operation control method, control device, air conditioner and storage medium |
| PCT/CN2021/128081 WO2022134871A1 (en) | 2020-12-22 | 2021-11-02 | Air conditioner operation control method and apparatus, and air conditioner and computer-readable storage medium |
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| WO2022134871A1 (en) * | 2020-12-22 | 2022-06-30 | 珠海格力电器股份有限公司 | Air conditioner operation control method and apparatus, and air conditioner and computer-readable storage medium |
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| CN115264756B (en) * | 2022-07-13 | 2023-08-01 | 青岛海信日立空调系统有限公司 | Emergency treatment method and device for air conditioning system |
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