CN111692700A - Multi-split electric heating control method and device, storage medium and air conditioner - Google Patents
Multi-split electric heating control method and device, storage medium and air conditioner Download PDFInfo
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- CN111692700A CN111692700A CN202010488742.9A CN202010488742A CN111692700A CN 111692700 A CN111692700 A CN 111692700A CN 202010488742 A CN202010488742 A CN 202010488742A CN 111692700 A CN111692700 A CN 111692700A
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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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/009—Indoor units, e.g. fan coil units characterised by heating arrangements
- F24F1/0093—Indoor units, e.g. fan coil units characterised by heating arrangements with additional radiant heat-discharging elements, e.g. electric heaters
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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
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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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
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
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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
- F24F11/88—Electrical aspects, e.g. circuits
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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Abstract
The invention provides a multi-connected electrical heating control method and device, a storage medium and an air conditioner, which relate to the technical field of air conditioners and comprise the following steps: acquiring a maximum allowable parameter value of the multi-split air conditioner and a rated parameter value of each indoor unit; when an electric heating starting instruction from any indoor unit is received, determining a first rated parameter value total value of the indoor unit corresponding to the starting instruction and all the indoor units in the electric heating running state according to the rated parameter value of each indoor unit; determining whether to start the electric heating of the indoor unit corresponding to the opening instruction or not according to the maximum allowable parameter value and the total value of the first rated parameter value; controlling the indoor unit which can not start the electric heating to enter a queuing program. The invention can prevent the current from being overlarge due to the starting of a plurality of indoor units, ensure the power utilization safety and reliability of the multi-split air conditioner under any use working condition, and effectively avoid the overlarge current and improve the power utilization safety of the multi-split air conditioner when the thickness of a power line cannot be increased particularly under the use scene of the household multi-split air conditioner.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a multi-connected electrical heating control method, a control device and an air conditioner.
Background
At present, in the heating process of the multi-split air conditioner, electric heating is sometimes needed for auxiliary heating. When the indoor units of the existing multi-split air conditioner use electric heating, when the plurality of indoor units simultaneously start the electric heating, because the electric heating function has higher power and large current, tripping and even power line ignition are easily caused, and the potential safety hazard of the multi-split air conditioner is caused.
Disclosure of Invention
The invention solves the problem that in the existing multi-split air conditioner, when a plurality of indoor units are simultaneously started to be electrically heated, the power or current is overlarge, and the multi-split air conditioner is tripped or even has fire on a power line, so that the electrical safety of the multi-split air conditioner is hidden trouble.
In order to solve the above problems, the present invention provides a multi-connected electrical heating control method, including:
acquiring a maximum allowable parameter value of the multi-split air conditioner and a rated parameter value of each indoor unit, wherein the parameter values comprise current values and/or voltage values;
when an electric heating starting instruction from any indoor unit is received, determining a first rated parameter value total value of the indoor unit corresponding to the starting instruction and all the indoor units in the electric heating running state according to the rated parameter value of each indoor unit;
determining whether to start the electric heating of the indoor unit corresponding to the starting instruction or not according to the maximum allowable parameter value and the total value of the first rated parameter value;
and controlling the indoor units which cannot be electrically heated to enter a queuing program.
According to the multi-split air conditioner electric heating control method, whether the electric heating of the indoor unit corresponding to the starting instruction is started or not is judged through the maximum allowable parameter value and the total value of the first rated parameter value, the indoor units which cannot be started to enter a queuing program are controlled, the phenomenon that the current is too large due to the fact that the indoor units are started is prevented, the multi-split air conditioner can be guaranteed to be safe and reliable in electricity utilization under any use working condition, particularly under the use scene of the household multi-split air conditioner, when the thickness of a power line cannot be increased, the too large current can be effectively avoided, and the electricity utilization safety of the multi-split air conditioner is improved.
Optionally, when an electric heating start instruction from any one of the indoor units is received, determining, according to the rated parameter value of each indoor unit, a total value of first rated parameter values of the indoor unit corresponding to the start instruction and the indoor units in all electric heating operation states includes:
when an electric heating starting instruction from any indoor unit is received, judging whether the indoor unit executes the queuing program or not;
if yes, controlling the indoor unit corresponding to the starting instruction to enter the queuing program;
and if not, determining the total value of the first rated parameter value according to the rated parameter value of each indoor unit.
Before the first rated power value is calculated, whether an indoor unit execution queuing program exists at present is judged, when the indoor unit execution queuing program exists, the fact that the number of the indoor units which are started to be electrically heated at present reaches the safety number and the indoor units which are queuing exist is shown, therefore, the first rated power value total value and the subsequent judging process do not need to be calculated, the indoor units which are appointed to be started to enter the queuing program are directly controlled, the control process is simplified, and repeated calculation is not needed.
Optionally, the determining, according to the maximum allowable parameter value and the total value of the first rated parameter value, whether to turn on the electrical heating of the indoor unit corresponding to the turn-on instruction includes:
judging whether the total value of the first rated parameter value is smaller than the maximum allowable parameter value:
if so, starting the electric heating of the indoor unit corresponding to the starting instruction;
if not, controlling the indoor unit corresponding to the starting instruction to enter the queuing program.
The total value of the first rated parameter value is compared with the maximum allowable parameter value, so that the situation that the current is overlarge due to the fact that the indoor units are started is prevented, the power utilization safety and reliability of the multi-split air-conditioning system can be guaranteed under any use working condition, the judging process is simple, the judging result is accurate, the types and the number of the indoor units are considered, and the maximum allowable current value or the maximum allowable power value of the circuit system is utilized to the maximum.
Optionally, the method further comprises:
determining the longest operation length t of the indoor unit in the electric heating operation state when the indoor unit executes the queuing programmaxAnd judging whether the accumulated running time of the indoor unit in the electric heating running state is greater than or equal to the maximum running time tmax：
If so, controlling the indoor unit in the electric heating running state to close electric heating;
if not, controlling the indoor unit in the electric heating operation state to continuously operate the electric heating;
the maximum operation time tmax＝k*(TIs provided with-TInner part) Wherein, TIs provided withSet temperature, T, of the indoor unit in the electrically heated operating stateInner partK is a proportionality constant, and is the ambient temperature of the indoor unit in the electric heating operation state.
When the indoor units are queued to start electric heating, the starting time of the started electric heating indoor units is reasonably controlled according to the time condition and the electric heating running time distributed according to the load of the indoor units, the power is used in places needing heating, the electric heating queuing is changed into a dynamic process, the situation that the number of the indoor units in a queuing program is too large due to the electric heating running time process is prevented, the situation that the waiting time of a single unit is too long is prevented, and the heating requirements of a plurality of users on the air conditioner are met.
Optionally, the method further comprises: the indoor unit which can not be started for electric heating starts to record accumulated queuing time since entering the queuing program, and the accumulated queuing time is positively correlated with the starting priority of the indoor unit for electric heating.
The sequencing is carried out according to the accumulated time length of the indoor units entering the queuing program, the control process is simple, the starting sequence of the electric heating can be reasonably arranged, and the indoor units in the queuing program can be started in sequence.
Optionally, the method further comprises: the indoor units which cannot start the electric heating start to obtain queuing serial numbers from entering the queuing program, the queuing serial numbers are other indoor unit quantity values which are executing the queuing program, all the indoor units executing the queuing program correspond to different queuing serial numbers, and the queuing serial numbers are in negative correlation with the starting priority of the electric heating of the indoor units.
The sequence is sequenced according to the front and back sequence of the indoor units entering the queuing program, the control process is simple, the starting sequence of the electric heating can be reasonably sequenced, and the indoor units in the queuing program can be started in sequence.
Optionally, the method further comprises: and when any indoor unit in the queuing program exits the queuing program, controlling the queuing serial numbers of other indoor units in the queuing program to be reduced by one. And dynamically adjusting the queuing sequence of the queuing program to ensure that the indoor units in the queuing program are started in sequence and always ensure that the indoor unit with the minimum queuing number preferentially starts electric heating.
Optionally, the multi-split electrical heating control method further includes:
when an electric heating closing instruction from any indoor unit is received and the indoor units execute the queuing program, acquiring a rated parameter value of the indoor unit with the highest opening priority in the queuing program, determining a second rated parameter value total value of the indoor unit with the highest opening priority and the indoor units in all electric heating running states according to the rated parameter value of each indoor unit, and judging whether the second rated parameter value total value is smaller than the maximum allowable parameter value;
if yes, controlling the indoor unit with the highest starting priority to start electric heating and quitting the queuing program;
if not, controlling the indoor unit with the highest starting priority to continue executing the queuing program.
When the indoor unit is electrically heated and closed, the allowable current or the allowable power of the circuit system has allowance, whether the indoor unit with the highest priority in the queuing program can be electrically heated or not is judged by comparing the rated parameter value and the maximum allowable parameter value of the indoor unit with the highest priority in the electric heating operation state, and the electric heating is orderly controlled to be started by the inner fan on the basis of the safe operation of the air conditioner.
Optionally, when the indoor unit with the highest starting priority is controlled to start electrical heating, the queuing program exits, and other indoor units execute the queuing program, the rated parameter value of the indoor unit with the highest starting priority in the queuing program is obtained again, the total value of the second rated parameter value of the indoor unit with the highest starting priority and the indoor unit in the electrical heating running state at present is determined, and whether the total value of the second rated parameter value is smaller than the maximum allowable parameter value is determined again until the number of the indoor units executing the queuing program is zero or the total value of the second rated parameter value is greater than or equal to the maximum allowable parameter value. When the indoor unit with the highest priority in the queuing program meets the starting condition, the electric heating is started, the queuing program exits, and the queued indoor units still exist, the rated parameter value and the maximum allowable parameter value of the indoor unit in the electric heating running state are compared with the new indoor unit with the highest starting priority in the queuing program, whether the electric heating of one indoor unit can be started again is judged, and on the basis of safe running of the air conditioner, the electric heating is started by the maximum program, so that the heating requirement of a user is ensured.
Optionally, the method further comprises: and when receiving an electric heating closing instruction from any one indoor unit executing the queuing program, controlling the indoor unit corresponding to the electric heating closing instruction to exit the queuing program. And ensuring the indoor machines in the queuing program to queue orderly.
Another object of the present invention is to provide a multiple electromechanical heating control device, which is adapted to implement the multiple electromechanical heating control method described in any one of the above embodiments, and includes:
the acquisition unit is used for acquiring the maximum allowable parameter value of the multi-split air conditioner and the rated parameter value of each indoor unit, wherein the parameter value comprises a current value and/or a voltage value;
the processing unit is used for determining the total value of the rated parameter values of the indoor units corresponding to the starting instruction and all the indoor units in the electric heating running state according to the rated parameter value of each indoor unit when receiving an electric heating starting instruction from any indoor unit;
the control unit is used for judging whether to start the electric heating of the indoor unit corresponding to the starting instruction or not according to the maximum allowable parameter value and the total value of the rated parameter value; and controlling the indoor units which cannot be started to enter a queuing program.
Another object of the present invention is to provide a computer-readable storage medium storing a computer program which, when read and executed by a processor, implements the multiple-connected electromechanical heating control method according to any one of the above.
Another object of the present invention is to provide an air conditioner, comprising a computer readable storage medium storing a computer program and a processor, wherein the computer program is read by the processor and executed to implement the multi-connected electrical and mechanical heating control method as described in any one of the above.
The advantages of the multi-connected electrical heating control device, the computer readable storage medium and the air conditioner compared with the prior art are the same as the advantages of the multi-connected electrical heating control method compared with the prior art, and are not repeated herein.
Drawings
Fig. 1 is a first flowchart of a multi-connected electrical heating control method according to an embodiment of the present invention;
fig. 2 is a flow chart of a multi-connected electrical heating control method according to an embodiment of the invention;
FIG. 3 is a flowchart illustrating step S3 according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating step S4 according to an embodiment of the present invention.
Detailed Description
A multi-split air conditioner, also called "one split multiple", refers to an outdoor unit connected to two or more indoor units through pipes. The indoor units are placed in different spaces to refrigerate or heat the different spaces. Specifically, the indoor units can select different numbers of pieces, and meet the heating or refrigerating requirements of different spaces. Electric heating is a commonly used electric auxiliary heating function of an air conditioner, and is commonly used in the heating initial stage to accelerate the rise of the ambient temperature. The power required by electric heating is high, the simultaneous starting of the electric heating function of a plurality of indoor units easily causes idle tripping, and serious causes the power line overheating and fire, which causes inestimable loss. The indoor units in different spaces have different models and numbers of indoor units, and the total power after the indoor units are started is different.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the description of the present invention, it should be noted that the terms "first" and "second" mentioned in the embodiments are only used for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
The embodiment provides a multi-connected electromechanical heating control method, which is shown in fig. 1 and includes the following steps:
step S1, acquiring multi-split air conditionerThe maximum allowable parameter value of the air conditioner and the rated parameter value of each indoor unit in the multi-split air conditioner are obtained, wherein the parameter values comprise current values and/or voltage values, and the maximum allowable parameter value of the embodiment takes the current value as an example, and obtains the maximum allowable current value I of the multi-split air conditionermax(ii) a In the present embodiment, the nominal parameter value takes the voltage value as an example, that is, the nominal power value Pe of each indoor unit is obtained;
step S2, when an electric heating starting instruction from any indoor unit is received, determining a first rated parameter value total value SPe of the indoor unit corresponding to the starting instruction and the indoor units in all electric heating running states according to the rated parameter value of each indoor unit1；
Step S3, according to the maximum allowable current value ImaxWith a first nominal power value SPe1And determining whether to start the electric heating of the indoor unit corresponding to the starting instruction, and controlling the indoor unit which cannot start the electric heating to enter a queuing program.
It should be noted that the indoor unit in the electrical heating operation state refers to an indoor unit already running electrical heating, and the indoor unit corresponding to the opening instruction refers to an indoor unit that a user needs to open electrical heating; the parameter value can obtain a power value and/or a current value, the power value or the current value can be compared independently, the power value and the current value can be compared simultaneously, and the rated power and the rated current can be converted through the rated voltage. In the embodiment, the optimal power value is judged, the current judgment is relatively direct and effective, the applicable scenes are richer, but certain hardware support is needed, and the general internal machine has no related hardware support; and the power judgment is easy to determine in the development process of the internal machine, so that additional hardware is not required to be added, and the universality is better.
Specifically, in step S1 of the present embodiment, after the multi-split air conditioner is installed, the maximum allowable current value I allowed for the air conditioner is obtainedmaxI.e. the lowest value of the air-switch-on current and the total current of the air conditioner, the safety current and the maximum allowable current value ImaxAnd entering the control program.
Specifically, in step S1 in this embodiment, after the multi-split air conditioner is installed, the rated power values Pe of different indoor units are obtained according to the models and the numbers of the different indoor units, and the rated power values Pe corresponding to all the indoor units are recorded in the control program.
The multi-connected electric heating control method of the invention passes through the maximum allowable current value ImaxWith a first nominal power value SPe1And judging whether to start the electric heating of the indoor unit corresponding to the starting instruction, and controlling the indoor unit which cannot start the electric heating to enter a queuing program. The multi-split air conditioner has the advantages that the current is prevented from being overlarge due to the fact that the indoor units are started, the multi-split air conditioner can be guaranteed to be safe and reliable in power utilization under any use working condition, and the overlarge current can be effectively avoided when the thickness of a power line cannot be increased particularly in the use scene of the household multi-split air conditioner, and the power utilization safety of the multi-split air conditioner is improved.
Optionally, as shown in fig. 2, this embodiment further provides another implementation manner, including:
step S1, obtaining a maximum allowable parameter value of the multi-split air conditioner and a rated parameter value of each indoor unit in the multi-split air conditioner, where the parameter values include a current value and/or a voltage value, and the maximum allowable parameter value in this embodiment is obtained by taking the obtained current value as an example, and obtaining a maximum allowable current value I of the multi-split air conditionermax(ii) a In the present embodiment, the nominal parameter value takes the voltage value as an example, that is, the nominal power value Pe of each indoor unit is obtained;
step S2, executing a first judgment, where the first judgment includes: when an electric heating starting instruction of any indoor unit is received, judging whether the indoor unit executes the queuing program, if so, controlling the indoor unit corresponding to the starting instruction to enter the queuing program; if not, determining the first rated power value total value SPe according to the rated parameter value of each indoor unit1And proceeds to step S3;
step S3, according to the maximum allowable current value ImaxWith a first nominal power value SPe1And judging whether to start the electric heating of the indoor unit corresponding to the starting instruction, and controlling the indoor unit which cannot start the electric heating to enter a queuing program.
The indoor unit executes the queuing program, which means that the indoor unit enters the queuing program, queues according to the control method, and is started again under certain conditions.
The present embodiment adds a first judgment in calculating the first rated power total value SPe in step S21Before, whether the indoor unit executes the queuing program or not is judged, when the indoor unit executes the queuing program, the fact that the quantity of the electric heating started by the indoor unit reaches the safety quantity currently and the indoor unit which is queuing exists is shown, and therefore the first rated power value total value SPe does not need to be calculated any more1And step S3, directly controlling the indoor unit corresponding to the starting designation to enter a queuing program, simplifying the control process and avoiding repeated calculation.
Preferably, this embodiment further provides a specific implementation manner of step S3, where the determining whether to turn on the electrical heating of the indoor unit corresponding to the start instruction according to the maximum allowable parameter value and the total value of the first rated parameter value includes a second determination, where the second determination includes: judging whether the total value of the first rated parameter value is smaller than the maximum allowable parameter value, if so, starting the electric heating of the indoor unit corresponding to the starting instruction; if not, controlling the indoor unit corresponding to the starting instruction to enter the queuing program.
Specifically, as shown in fig. 3, the step S3 includes the following steps:
judging the first rated power value SPe1Whether or not it is less than the maximum allowable current value Imax220, i.e. the first rated power value SPe1Whether or not it is less than the maximum allowable power value PmaxIf yes, starting the electric heating of the indoor unit corresponding to the starting instruction; if not, controlling the indoor unit corresponding to the starting instruction to enter the queuing program. Alternatively, in step S1, the maximum allowable power value P of the multi-split air conditioner may be directly acquiredmax。
Specifically, in this embodiment, when there is an indoor unit executing the queuing program, the longest operation length t of the indoor unit in the electric heating operation state is calculatedmaxAnd making a third judgment(ii) a The third judgment includes: judging whether the accumulated operation time of the indoor unit in the electric heating operation state is greater than or equal to the maximum operation time tmaxIf yes, controlling the indoor unit in the electric heating running state to close electric heating; if not, the indoor unit in the electric heating operation state continues to operate electric heating.
The maximum operation time tmax＝k*(TIs provided with-TInner part) Wherein, TIs provided withSet temperature, T, of the indoor unit in the electrically heated operating stateInner partK is a proportionality constant, preferably in the range of 2 to 7, which is the ambient temperature of the indoor unit in the electric heating operation state; specifically, the unit of the set temperature and the indoor temperature is DEG C, and tmaxIn units of min.
Specifically, the accumulated operation duration is counted from the start of the electrical heating of the indoor units, each indoor unit in the electrical heating operation state independently records the corresponding accumulated operation duration, the corresponding longest operation duration is independently calculated, and the operation durations of different indoor units do not interfere with each other.
Preferably, when the judgment result of the third judgment is that the accumulated operation duration of the indoor unit in the electric heating operation state is less than the maximum operation duration tmaxAnd then, after waiting for a period of time, carrying out the third judgment again, preferably for 3 to 10 minutes, until the indoor unit in the electric heating running state quits the electric heating and shutdown or the indoor unit executing the queuing program quits the queuing program.
Specifically, this embodiment provides a specific implementation manner of a queuing program, including: the method comprises the steps that the indoor unit starts to record accumulated queuing time from entering a queuing program, the longer the accumulated queuing time is, the higher the opening priority of the indoor unit electric heating is, and when the indoor unit which executes the electric heating exits the electric heating, whether the indoor unit with the longest accumulated queuing time is suitable for opening the electric heating is judged.
Optionally, this embodiment further provides another specific implementation of the queuing program, including: the indoor units start to acquire queuing serial numbers from entering the queuing program, the queuing serial numbers are other indoor unit quantity values which are already executing the queuing program, all the indoor units executing the queuing program correspond to different queuing serial numbers, and the smaller the queuing serial number is, the higher the starting priority of the indoor unit electric heating is. For example, the first indoor unit entering the queuing program acquires the queuing number 0, the second indoor unit entering the queuing program acquires the queuing number 1, and so on. When the indoor unit which has performed the electric heating quits the electric heating, the indoor unit with the queuing number of 0 is judged whether to be suitable for starting the electric heating.
Further, when any one of the indoor units in the queue program exits the queue program, the queue number of the other indoor units in the queue program is decreased by one, for example, when the indoor unit with the queue number of 0 exits the queue program, the indoor unit with the queue number of 1 reacquires the queue number of 0, the indoor unit with the queue number of 2 reacquires the queue number of 1, and so on.
Specifically, the multiple electromechanical heating control method according to this embodiment further includes step S4, and as shown in fig. 4, the step S4 includes:
step S41, when an electric heating closing instruction from any indoor unit is received and the indoor unit executes the queuing program, acquiring a rated parameter value of the indoor unit with the highest opening priority in the queuing program, for example, acquiring Pe of the indoor unit with the highest opening priority in the queuing program;
step S42, determining the second rated power value total value SPe of the indoor unit with the highest starting priority and the indoor units in all electric heating operation states according to the rated parameter value of each indoor unit2；
Step S43, a fourth determination is made, where the fourth determination includes: judging whether the second rated power value total value is smaller than the maximum allowable current value I or notmax220, if yes, controlling the indoor unit with the highest starting priority to start electric heating and quitting the queuing program; if not, controlling the indoor unit with the highest starting priority to continue executing the queuing program.
Preferably, in the step S43, when the indoor unit with the highest starting priority is controlled to start electrical heating and exit the queuing program, and there are other indoor units executing the queuing program, the rated parameter value (the rated power value Pe in this embodiment) of the indoor unit with the highest starting priority in the currently executed queuing program is obtained again, the total value of the second rated parameter value of the indoor unit with the highest starting priority and the indoor unit in the electrical heating operation state is determined, and the fourth judgment is performed again until the number of the indoor units executing the queuing program is zero or the total value of the second rated parameter value is greater than or equal to the maximum allowable parameter value.
Specifically, the multiple electromechanical heating control method according to this embodiment further includes: and when receiving an electric heating closing instruction from any one indoor unit executing the queuing program, controlling the indoor unit corresponding to the electric heating closing instruction to exit the queuing program.
Specifically, this embodiment further provides a multiple electromechanical heating control device, which is suitable for implementing the multiple electromechanical heating control method according to any one of the foregoing embodiments, and includes:
the acquisition unit is used for acquiring the maximum allowable parameter value of the multi-split air conditioner and the rated parameter value of each indoor unit, wherein the parameter value comprises a current value and/or a voltage value;
the processing unit is used for determining the total value of the rated parameter values of the indoor units corresponding to the starting instruction and all the indoor units in the electric heating running state according to the rated parameter value of each indoor unit when receiving an electric heating starting instruction from any indoor unit;
the control unit is used for determining whether to start the electric heating of the indoor unit corresponding to the starting instruction according to the maximum allowable parameter value and the total value of the rated parameter value; and controlling the indoor units which cannot be started to enter a queuing program.
Specifically, this embodiment also provides a computer-readable storage medium, in which a computer program is stored, and when the computer program is read and executed by a processor, the computer program implements the method according to any of the above embodiments.
Specifically, the present embodiment further provides an air conditioner, where the air conditioner includes a computer-readable storage medium storing a computer program and a processor, and the computer program is read by the processor and executed by the processor to implement the multiple electrical and mechanical heating control method according to any one of the above embodiments.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (13)
1. A multi-connected electromechanical heating control method is characterized by comprising the following steps:
acquiring a maximum allowable parameter value of the multi-split air conditioner and a rated parameter value of each indoor unit, wherein the parameter values comprise current values and/or voltage values;
when an electric heating starting instruction from any indoor unit is received, determining a first rated parameter value total value of the indoor unit corresponding to the starting instruction and all the indoor units in the electric heating running state according to the rated parameter value of each indoor unit;
determining whether to start the electric heating of the indoor unit corresponding to the starting instruction or not according to the maximum allowable parameter value and the total value of the first rated parameter value;
controlling the indoor unit which can not start the electric heating to enter a queuing program.
2. The multi-connected electrical heating control method according to claim 1, wherein when receiving an electrical heating start instruction from any one of the indoor units, determining a total value of a first rated parameter value of the indoor unit corresponding to the start instruction and the indoor units in all electrical heating operation states according to the rated parameter value of each indoor unit comprises:
when an electric heating starting instruction from any indoor unit is received, judging whether the indoor unit executes the queuing program or not;
if yes, controlling the indoor unit corresponding to the starting instruction to enter the queuing program;
and if not, determining the total value of the first rated parameter value according to the rated parameter value of each indoor unit.
3. The multi-split electrical heating control method according to claim 1 or 2, wherein the determining whether to turn on the electrical heating of the indoor unit corresponding to the turn-on command according to the maximum allowable parameter value and the total value of the first rated parameter value includes:
judging whether the total value of the first rated parameter value is smaller than the maximum allowable parameter value;
if so, starting the electric heating of the indoor unit corresponding to the starting instruction;
if not, controlling the indoor unit corresponding to the starting instruction to enter the queuing program.
4. A multiple electromechanical heating control method as set forth in claim 1 or 2, further comprising:
determining the longest operation length t of the indoor unit in the electric heating operation state when the indoor unit executes the queuing programmaxAnd judging whether the accumulated running time of the indoor unit in the electric heating running state is greater than or equal to the maximum running time tmax；
If so, controlling the indoor unit in the electric heating running state to close electric heating;
if not, controlling the indoor unit in the electric heating operation state to continuously operate the electric heating;
the maximum operation time tmax＝k*(TIs provided with-TInner part) Wherein, TIs provided withSet temperature, T, of the indoor unit in the electrically heated operating stateInner partK is a proportionality constant, and is the ambient temperature of the indoor unit in the electric heating operation state.
5. A multiple electromechanical heating control method as set forth in claim 1, further comprising:
the indoor unit which can not be started for electric heating starts to record accumulated queuing time since entering the queuing program, and the accumulated queuing time is positively correlated with the starting priority of the indoor unit for electric heating.
6. A multiple electromechanical heating control method as set forth in claim 1, further comprising:
the indoor units of the indoor units which cannot start the electric heating start to acquire queuing serial numbers from the queuing program, wherein the queuing serial numbers are other indoor unit quantity values which are executing the queuing program, all the indoor units executing the queuing program correspond to different queuing serial numbers, and the queuing serial numbers are in negative correlation with the starting priority of the electric heating of the indoor units.
7. A multiple electromechanical heating control method as set forth in claim 6, further comprising:
and when any indoor unit in the queuing program exits the queuing program, controlling the queuing serial numbers of other indoor units in the queuing program to be reduced by one.
8. A multiple electromechanical heating control method as defined in any one of claims 5 to 7, further comprising:
when an electric heating closing instruction from any indoor unit is received and the indoor units execute the queuing program, acquiring a rated parameter value of the indoor unit with the highest opening priority in the queuing program, determining a second rated parameter value total value of the indoor unit with the highest opening priority and the indoor units in all electric heating running states according to the rated parameter value of each indoor unit, and judging whether the second rated parameter value total value is smaller than the maximum allowable parameter value;
if yes, controlling the indoor unit with the highest starting priority to start electric heating and quitting the queuing program;
if not, controlling the indoor unit with the highest starting priority to continue executing the queuing program.
9. A multiple electromechanical heating control method as set forth in claim 8, further comprising:
when the indoor unit with the highest starting priority is controlled to start electric heating, the queuing program exits, and other indoor units execute the queuing program, the rated parameter value of the indoor unit with the highest starting priority in the queuing program is obtained again, the total value of the second rated parameter value of the indoor unit with the highest starting priority and the indoor unit in the electric heating running state at present is determined, and whether the total value of the second rated parameter value is smaller than the maximum allowable parameter value or not is judged again until the number of the indoor units executing the queuing program is zero or the total value of the second rated parameter value is larger than or equal to the maximum allowable parameter value.
10. A multiple electromechanical heating control method as set forth in claim 1, further comprising:
and when receiving an electric heating closing instruction from any one indoor unit executing the queuing program, controlling the indoor unit corresponding to the electric heating closing instruction to exit the queuing program.
11. A multiple electromechanical heating control device, characterized by comprising:
the acquisition unit is used for acquiring the maximum allowable parameter value of the multi-split air conditioner and the rated parameter value of each indoor unit, wherein the parameter value comprises a current value and/or a voltage value;
the processing unit is used for determining the total value of the rated parameter values of the indoor units corresponding to the starting instruction and all the indoor units in the electric heating running state according to the rated parameter value of each indoor unit when receiving an electric heating starting instruction from any indoor unit;
the control unit is used for determining whether to start the electric heating of the indoor unit corresponding to the starting instruction according to the maximum allowable parameter value and the total value of the rated parameter value; and controlling the indoor units which cannot be started to enter a queuing program.
12. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program which, when read and executed by a processor, implements a multiple electromechanical heating control method according to any one of claims 1 to 10.
13. An air conditioner comprising a computer-readable storage medium storing a computer program and a processor, wherein the computer program is read by the processor and executed to implement the multiple electromechanical heating control method according to any one of claims 1 to 10.
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