CN106765901A - The control method of convertible frequency air-conditioner - Google Patents
The control method of convertible frequency air-conditioner Download PDFInfo
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- CN106765901A CN106765901A CN201611088294.3A CN201611088294A CN106765901A CN 106765901 A CN106765901 A CN 106765901A CN 201611088294 A CN201611088294 A CN 201611088294A CN 106765901 A CN106765901 A CN 106765901A
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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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- 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
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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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
-
- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Atmospheric Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a kind of control method of convertible frequency air-conditioner, including:Air-conditioning start operation refrigeration mode, after compressor operating time reaches setting run time, obtain the current indoor temperature of indoor temperature transmitter detection, as the first indoor temperature, using the difference of first indoor temperature and setting compensation temperature as the second indoor temperature, the temperature difference between second indoor temperature and current indoor target temperature is calculated, obtain the indoor temperature difference, room temperature PID computing is carried out according to the indoor temperature difference, first object frequency is obtained;Second indoor temperature is made comparisons with the comfort temperature of setting, is determined to perform room temperature PID control according to comparative result or is included the dual PID control of disk temperature PID control;Coil pipe target temperature employed in disk temperature PID control determines according to current indoor target temperature.Using the present invention, the low-power consumption energy saving of the comfortableness of temperature adjustment and air-conditioner in air conditioner chamber can be taken into account, realize more rational control.
Description
Technical field
It is to be related to a kind of control method of convertible frequency air-conditioner specifically the invention belongs to air-conditioning technique field.
Background technology
Hot summer, many people be unable to do without air-conditioning the whole day and night.But the long-term harm for blowing air-conditioning to human body is a lot, holds
Be easy to get air conditioner disease.
Cause uncomfortable problem to solve refrigeration blowing cold air, the coil temperature that can be based on indoor heat exchanger is made
The control method of compressor operating frequency is controlled for control targe.In existing coil temperature control process, coil pipe target temperature
Fixed value is used, a temperature fixed value in accumulator for air conditioner is generally solidificated in.In actual use, often
In the presence of a phenomenon:In the case of the indoor target temperature difference of user's setting, temperature is close to indoor target temperature indoors
When, user feels uncomfortable on the contrary.Through analysis, this phenomenon is because temperature indoors is close to being based on room during user's design temperature
Compressor operating frequency is controlled as control targe for the coil temperature of interior heat exchanger and coil pipe target temperature is drawn by fixed value
Rise.
Because the coil temperature of heat exchanger is to concern the key parameter that air conditioner coolant system and integrated air are adjusted, if control
System is improper, may bring air adjustment degradation, reduce the problem of comfortableness.Therefore, how to be carried out based on coil temperature
Rationally, comfortable control, is the problem urgently studied and solve.
The content of the invention
It is an object of the invention to provide a kind of control method of convertible frequency air-conditioner, the comfortable of temperature adjustment in air conditioner chamber is taken into account
Property and air-conditioner low-power consumption energy saving, realize more rational control.
For achieving the above object, the present invention is achieved using following technical proposals:
A kind of control method of convertible frequency air-conditioner, the convertible frequency air-conditioner is wall-hanging air conditioner, and methods described includes:
Air-conditioning start operation refrigeration mode, after the compressor operating time of air-conditioning reaches setting run time, obtains Indoor Temperature
The current indoor temperature of degree sensor detection, as the first indoor temperature, by first indoor temperature and setting compensation temperature
Difference as the second indoor temperature, calculate the temperature difference between second indoor temperature and current indoor target temperature, obtain
The indoor temperature difference, room temperature PID computing is carried out according to the indoor temperature difference, obtains first object frequency;
Second indoor temperature is made comparisons with the comfort temperature of setting;
If second indoor temperature is not less than the comfort temperature, following room temperature PID controls are performed:
The compressor according to the first object FREQUENCY CONTROL;
If second indoor temperature is less than the comfort temperature, following dual PID controls are performed:
The coil temperature of A/C evaporator is detected, the temperature difference between the coil temperature and coil pipe target temperature is calculated, disk is obtained
The pipe temperature difference, disk temperature PID arithmetic is carried out according to the coil pipe temperature difference, obtains the second target frequency;According to the first object frequency
The compressor is controlled with the smaller value in second target frequency;The coil pipe target temperature is according to the current indoor mesh
Mark temperature determines, and it is small to meet the current indoor target temperature hour coil pipe target temperature.
Control method for frequency conversion air conditioner as described above, the coil pipe target temperature is true according to the current indoor target temperature
It is fixed, specifically include:
Obtain indoor recommendation target temperature and coil pipe recommends target temperature;
The difference of the indoor recommendation target temperature and the current indoor target temperature is calculated, as the first difference;
Second difference is obtained according to the differences of the second difference of formula=a* first;A is no more than 1 positive number;
The difference that the coil pipe recommends target temperature and second difference is calculated, result of calculation is defined as performing the disk temperature PID
The actual coil pipe target temperature of computing.
The control method of convertible frequency air-conditioner as described above, the setting run time be prestore and call and institute
Current indoor target temperature and the corresponding run time of current outdoor temperature are stated, the setting compensation temperature is to prestore and adjust
Compensation temperature corresponding with the current indoor target temperature and the current outdoor temperature.
The control method of convertible frequency air-conditioner as described above, the setting run time passes through following method calls:
The current indoor target temperature is made comparisons with the indoor target temperature scope for prestoring, the current indoor is judged
Indoor target temperature scope belonging to target temperature;The current outdoor temperature and the outdoor temperature scope for prestoring are made to compare
Compared with judging the outdoor temperature scope belonging to the current outdoor temperature;According to prestore and indoor target temperature scope and
Searched in the corresponding multiple run times of outdoor temperature scope and the indoor objects temperature belonging to the current indoor target temperature
When the degree scope run time corresponding with the outdoor temperature scope belonging to the current outdoor temperature is as the setting operation
Between, and call;
The setting compensation temperature passes through following method calls:
The current indoor target temperature is made comparisons with the indoor target temperature scope for prestoring, the current indoor is judged
Indoor target temperature scope belonging to target temperature;The current outdoor temperature and the outdoor temperature scope for prestoring are made to compare
Compared with judging the outdoor temperature scope belonging to the current outdoor temperature;According to prestore and indoor target temperature scope and
Searched in the corresponding multiple compensation temperatures of outdoor temperature scope and the indoor objects temperature belonging to the current indoor target temperature
The degree scope compensation temperature corresponding with the outdoor temperature scope belonging to the current outdoor temperature is used as the setting compensation temperature
Degree, and call.
The control method of convertible frequency air-conditioner as described above, it is indoor described in real-time detection when the dual PID control is performed
Temperature, calculates second indoor temperature, and second indoor temperature is made comparisons with the comfort temperature, described second
When indoor temperature is not less than the comfort temperature, the dual PID control is exited, perform the room temperature PID control.
The control method of convertible frequency air-conditioner as described above, it is indoor described in real-time detection when the dual PID control is performed
Temperature, calculates second indoor temperature, and second indoor temperature is made comparisons with the comfort temperature, described second
Difference difference more than setting of the indoor temperature not less than the comfort temperature and second indoor temperature and the comfort temperature
When, the dual PID control is exited, perform the room temperature PID control.
The control method of convertible frequency air-conditioner as described above, when the dual PID control is performed, obtains the compressor
Current operation frequency, using the current operation frequency as the disk temperature PID arithmetic original frequency, and according to the coil pipe temperature
Difference carries out the disk temperature PID arithmetic.
The control method of convertible frequency air-conditioner as described above, in air conditioner refrigerating running, if detecting user's setting
Wind speed, then control the blower fan of air-conditioning to be run according to the wind speed of the setting;Otherwise, the blower fan is controlled to be transported according to highest wind velocity
OK.
Compared with prior art, advantages and positive effects of the present invention are:
Using the method for the present invention, before compressor operating time reaches setting run time, not to indoor temperature transmitter
The current indoor temperature of detection is compensated, and controls compressor operating according to normal control mode so that indoor temperature is quickly reduced,
Ensure the comfortableness of indoor temperature regulation;After compressor operating time reaches setting run time, by setting comfort temperature,
According to indoor temperature and the size of comfort temperature, selection is controlled or using the disk based on evaporator coil temperature using room temperature PID
Warm PID control, can lower the temperature to room in time, quickly when room temperature is high, reach refrigeration purpose, again can be by coil temperature
Stabilization is in coil pipe target temperature so that air conditioning exhausting temperature pleasant, reaches cool without cold comfortable cooling effect.And,
Coil pipe target temperature during disk temperature PID control determines according to indoor target temperature, indoor target temperature hour coil pipe mesh
Mark temperature is also small so that coil pipe target temperature is consistent with indoor target temperature, the low situation of target temperature requirement indoors
Cooling rate is fast during lower execution disk temperature PID control, is rapidly achieved the balance of required indoor low temperature, further improves user and relaxes
Adaptive.Additionally, for room temperature PID control, current indoor temperature is compensated using setting compensation temperature, with the temperature after compensation
As the benchmark indoor temperature that room temperature PID is controlled, benchmark indoor temperature is reduced so that benchmark indoor temperature is closer to interior
Corresponding to the actual temperature in user's main activities space, compressor operating frequency can be reduced, reduce energy consumption of compressor, realize section
Can property.
After specific embodiment of the invention is read in conjunction with the figure, the other features and advantages of the invention will become more clear
Chu.
Brief description of the drawings
Fig. 1 is the flow chart of one embodiment of the control method based on convertible frequency air-conditioner of the present invention.
Specific embodiment
Technical scheme is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 is referred to, the figure show the flow chart of one embodiment of the control method based on convertible frequency air-conditioner of the present invention.
As shown in figure 1, the embodiment realizes the control method of convertible frequency air-conditioner, specifically realizes wall-mounted convertible frequency air-conditioner
The detailed process of refrigeration control method is as follows:
Step 101:Air-conditioning is started shooting, and controls compressor operating.
After air-conditioning start, by operational mode set according to user or acquiescence and operational factor, according to predetermined control
Programme-control compressor operating.
Step 102:Judge whether compressor operating time reaches setting run time.If so, performing step 104;If it is not,
Perform step 103.
Wherein, setting run time is the time value that prestore, can call at any time, be before air-conditioning dispatches from the factory, by
Air-conditioning research staff tests the numerical value for obtaining and being written in accumulator for air conditioner by special experiment condition and special test means.
Timer is provided with air-conditioning, timing can be carried out to the run time of compressor.In air-conditioning start, compressor
When bringing into operation, timer starts timing, when timing reaches setting run time, output time signal.In airconditioning control mistake
Whether Cheng Zhong, will reach setting run time according to compressor operating time, perform different controls.Specifically, compressor
Whether run time reaches the necessary condition that setting run time is determined whether to compensate indoor temperature.
Step 103:If step 102 judges that compressor operating time also not up to sets run time, according to conventional control
Method processed controls compressor.
If that is, run time also not up to sets run time after compressor start, indoor temperature benefit is not performed
The treatment repaid, but control compressor according to conventional control methods.Wherein, conventional control methods refer to existing transducer air conditioning
Control method.For example, the control method of existing air-conditioner is:The temperature difference between temperature and indoor target temperature is more than setting indoors
During the temperature difference, control compressor high frequency operation, until indoor temperature is not more than the setting temperature difference with the temperature difference of indoor target temperature.That
, in compressor operating time also not up to setting run time, if compressor wants high frequency to run in conventional control methods,
Then keep high frequency running status so that indoor temperature can quickly approach indoor target temperature, rapidly provide the user one
More suitable indoor environment.
During according to conventional control methods control compressor operating, still constantly perform whether judge compressor operating time
Reach the process of setting run time.
Step 104:If step 102 judges that compressor operating time reaches setting run time, indoor temperature will be entered
Row compensation, then, the compressor frequency that room temperature PID is controlled is calculated using the indoor temperature after compensation.
Specifically, after the run time after compressor start reaches setting run time, indoor temperature sensing is obtained
The current indoor temperature of device detection, as the first indoor temperature, calculates the difference of the first indoor temperature and setting compensation temperature, makees
It is the second indoor temperature.
Wherein, setting compensation temperature is the temperature value that prestore, can call at any time, be also before air-conditioning dispatches from the factory,
By air-conditioning research staff the number for obtaining and being written in accumulator for air conditioner is tested by special experiment condition and special test means
Value.When setting run time is reached between when the compressor is operating, the condition that control is compensated to indoor temperature is met, then obtained
The current indoor temperature detected by indoor temperature transmitter is taken, using the current indoor temperature as the first indoor temperature.Then,
Setting compensation temperature is obtained, the difference of the first indoor temperature and setting compensation temperature is calculated, using the difference as the second Indoor Temperature
Degree.Then, step 105 is performed.
Step 105:The temperature difference of the second indoor temperature and indoor target temperature is calculated, the indoor temperature difference is obtained, according to Indoor Temperature
Difference carries out room temperature PID computing, obtains compressor first object frequency.
Wherein, according to the indoor temperature difference carry out room temperature PID computing, acquisition compressor is controlled target frequency it is specific
Method can be realized using prior art.But, unlike the prior art, calculate the indoor temperature of the indoor temperature difference not
The temperature of indoor temperature transmitter detection, but the temperature to detecting has carried out the second indoor temperature obtained after temperature-compensating.
Step 106:Judge whether the second indoor temperature that step 104 is obtained is less than comfort temperature.If so, performing step
108 and the dual PID control of subsequent step;Otherwise, the room temperature PID control of step 107 is performed.
The step 106 can simultaneously be carried out with step 104 and step 105, be divided into herein sequentially describe only be for
Clearly state the control process of the embodiment.After step 104 obtains the second indoor temperature, by the second Indoor Temperature
Spend and made comparisons with the comfort temperature of setting, and judge the second indoor temperature whether less than comfort temperature.Wherein, comfort temperature can be with
It is a default setting temperature of air-conditioning when dispatching from the factory, or a design temperature that is voluntarily selected by user and setting.Such as
Fruit is that, by user's sets itself, air-conditioning can provide a reference temperature value, for reference.For example, it is proposed that by the comfortable temperature
Degree is set as 27 DEG C.
Step 107:If the second indoor temperature is not less than comfort temperature, room temperature PID control is performed, according to first object frequently
Rate controls compressor.
If step 106 judges that the second indoor temperature is not less than comfort temperature, show that now indoor temperature is higher, then perform
Room temperature PID is controlled, according to first object FREQUENCY CONTROL compressor so that indoor temperature fast cooling to indoor target temperature.
Step 108:If the second indoor temperature is less than comfort temperature, dual PID control is performed.
If step 106 judges that indoor temperature is less than comfort temperature, to avoid the too fast decline of temperature from causing body-sensing uncomfortable,
Dual PID control is performed, to adjust compressor operating frequency in time so that evaporator coil temperature can be stabilized to coil pipe mesh
Mark temperature, to adjust air conditioning exhausting temperature, reaches cool without cold comfortable air-out effect.The process ginseng of specific dual PID control
See below the description of step 109 and step 110.
Step 109:The coil temperature of evaporator is detected, disk temperature PID arithmetic is carried out according to the coil pipe temperature difference, obtain the second target
Frequency.
The detection of the coil temperature of evaporator can be detected by setting temperature sensor on evaporator coil.Detection
Go out after coil temperature, the temperature difference between coil temperature and coil pipe target temperature is calculated, using the temperature difference as the coil pipe temperature difference.Its
In, coil pipe target temperature determines according to current indoor target temperature, and meets current indoor target temperature hour coil pipe target temperature
Degree is also small.Then, disk temperature PID arithmetic is carried out according to the coil pipe temperature difference, obtains the target frequency being controlled to compressor, and should
Target frequency is defined as the second target frequency.The method that disk temperature PID arithmetic obtains the target frequency being controlled to compressor can
In the method for obtaining compressor target frequency with reference to room temperature PID computing of the prior art.Wherein, disk temperature PID arithmetic is first
Beginning frequency can be an original frequency for setting.Preferably, the original frequency of disk temperature PID arithmetic is step:106 judge indoor
The current operation frequency of compressor when temperature is less than comfort temperature, execution dual PID control.And, the current operation frequency is extremely
Be less in compressor operating for a period of time(Such as 3min)A running frequency afterwards.
Step 110:In the second target frequency that the first object frequency calculated according to step 105 is calculated with step 109
Smaller value controls compressor.
When temperature is less than comfort temperature indoors, disk temperature PID arithmetic is performed according to coil temperature and coil pipe target temperature, and
Smaller value control in the second target frequency that the first object frequency and disk temperature PID arithmetic exported according to room temperature PID computing are exported
Compressor operating processed, coil temperature is adjusted while refrigeration cool-down so that coil temperature can be approached to coil pipe target temperature.
When air-conditioner runs refrigeration mode, the temperature that indoor temperature transmitter is detected is higher than user's main activities space
Temperature.If the temperature for still being detected according to indoor temperature transmitter participates in PID arithmetic as indoor temperature, during PID arithmetic
The indoor temperature difference it is bigger than normal, the compressor target frequency for calculating is higher, and control compressor runs according to higher target frequency, leads
Cause air-conditioner energy consumption bigger than normal.And the method for using the embodiment, the indoor temperature of detection is first subtracted into a compensation temperature, obtain
More realistically reflect user and mainly live less than the second indoor temperature of the current indoor temperature of detection, and second indoor temperature
The temperature in dynamic space.When PID arithmetic is participated in using second indoor temperature less than normal, less compressor target is obtained in that
Frequency, using the less target frequency control compressor operating, reduces energy consumption.It is additionally, since second indoor temperature more
The temperature in user's main activities space is truly reflected, thus, can also cause that the indoor temperature after regulation is closer to room
Interior design temperature, without the problem of overshoot, reduces air-conditioner energy consumption while temperature adjustment comfortableness is met.Together
When, by setting comfort temperature, the second indoor temperature is made comparisons with comfort temperature, when temperature is higher indoors, using room temperature
PID control compressor operating so that indoor temperature fast cooling simultaneously approaches indoor target temperature.Temperature is less than comfortable temperature indoors
When spending, using room temperature PID control and the dual PID control of disk temperature PID control:When disk temperature PID control is had just enter into, disk temperature PID
Control plays a major role, and preferentially rises to coil temperature while cooling and approaches coil pipe target temperature;And in coil temperature
During close to coil pipe target temperature, room temperature PID plays a major role so that the stable target temperature indoors of indoor temperature, it is to avoid because of room
Warm overshoot and cause air-conditioning shut down phenomenon generation.So that during whole refrigeration control, room is approached indoor temperature is caused
Cause that coil temperature approaches coil pipe design temperature on the basis of interior target temperature, both met room temperature regulation, air conditioning exhausting is realized again
Comfortableness, reach cool without cold refrigeration.Coil pipe target temperature determines according to indoor target temperature, and meets room
Interior target temperature hour coil pipe target temperature is also small.
Used as preferred embodiment, coil pipe target temperature determines according to current indoor target temperature, specifically includes:
Obtain indoor recommendation target temperature and coil pipe recommends target temperature;
The difference of indoor recommendation target temperature and indoor target temperature is calculated, as the first difference;
Second difference is obtained according to the differences of the second difference of formula=a* first;A is no more than 1 positive number;
The difference that coil pipe recommends target temperature and the second difference is calculated, result of calculation is defined as performing the actual disk of disk temperature PID arithmetic
Pipe target temperature.
Wherein, indoor recommendation target temperature is a temperature that is known, prestoring, is research staff's warp usually
It is that a large amount of theoretical researches and experiment test are obtained, take into account human body comfort and a temperature of air conditioner energy saving, be 27 for example
℃.It is also a temperature that is known, prestoring that coil pipe recommends target temperature, is a large amount of theoretical research staff's warp usually
Research and experiment test obtained, indoors recommend target temperature as actual set indoor target temperature when can send out
One coil temperature of the heat exchange air of proper temperature, is 14 DEG C for example.Certainly, the indoor recommendation target temperature is pushed away with this
Recommending coil pipe recommendation target temperature can also be changed by mandate, for example, special finger be passed through in user family by personnel after sale
Order is modified.A is also known, prestores as a coefficient according to first the second difference of mathematic interpolation, its value
, it is that research staff is obtained through a large amount of theoretical researches and experiment test.Preferably, a is the positive number less than 1, and for example, a takes
Be worth is 0.5.So, it is 27 DEG C, the indoor situation that recommendation coil pipe target temperature is 14 DEG C, a is 0.5 that target temperature is recommended indoors
Under, if actual indoor target temperature is 26 DEG C, actual coil pipe target temperature is 13.5 DEG C;If indoor target temperature is 25
DEG C, then actual coil pipe target temperature is 13 DEG C.
Adopt with the aforedescribed process, when coil pipe target temperature is determined according to indoor target temperature, if indoor target temperature
Less than indoor recommendation target temperature, show that current desired indoor temperature is low, indoor recommendation target temperature and indoor objects temperature
The first difference between degree is negative value, is also negative value according to the first mathematic interpolation the second difference out;So, it is poor according to second
The actual coil pipe target temperature that value and coil pipe recommendation target temperature are calculated will recommend target temperature less than coil pipe.So,
When then performing disk temperature PID arithmetic according to actual coil pipe target temperature, because coil pipe target temperature is small, compressor operating frequency is big,
Cooling rate is fast, so that indoor temperature can rapidly reach required relatively low indoor temperature, meets to low
The comfortableness of the user of warm demand.And, indoor target temperature is lower, and the coil pipe target temperature for being obtained is also lower so that disk
The speed and cooling demand of warm PID control process are consistent with room temperature PID control, further increase the comfortableness of user.
It should be noted that during dual PID control is performed, still constantly comparing the second indoor temperature and relaxing
The size of thermophilic degree.Once indoor temperature is not less than comfort temperature, then dual PID control process is exited, be transferred to room temperature PID control
Process processed.
And, in whole control process, not compressor runs the compensation for being carried out indoor temperature at the beginning, but first
Compressor is kept to be run according to conventional control strategy, it is ensured that indoor temperature can be according to conventional control mode, be rapidly close to
Indoor target temperature, does not interfere with the speed of indoor temperature comfort conditioning.
Used as preferred embodiment, temperature is not less than comfort temperature and the difference of indoor temperature and comfort temperature indoors
During more than the difference for setting, then dual PID control process is exited, be transferred to room temperature PID control process.Set by reasonable selection
Difference, for example, being set as 1 DEG C, it can be ensured that coil temperature is not less than coil pipe target temperature, it is ensured that go out cool to be relaxed without cold
Adaptive.
And, in the air conditioner refrigerating operation control process of the embodiment, if the non-wind speed setting of user, controls air-conditioning
Blower fan runs according to highest wind velocity, because under same refrigerating capacity, the leaving air temp of high wind speed is higher than the air-out of low wind speed
Temperature, further ensures that leaving air temp will not be too low.And if detect user setting wind speed, control blower fan according to setting
Wind speed runs.
In the above-described embodiments, when perform the compensation control of indoor temperature, how many temperature benefits are performed to indoor temperature
Repay, be the key factor for concerning air-conditioner control comfortableness and energy saving.That is, setting run time and setting compensation temperature
From being key factor therein.
It is and indoor objects as the setting run time for preferred embodiment, being prestored in air-conditioning, being called at any time
A temperature run time corresponding with outdoor temperature, and prestore, the setting compensation temperature called at any time is and interior
A target temperature compensation temperature corresponding with outdoor temperature.Setting fortune is determined based on indoor target temperature and outdoor temperature
Row time and setting compensation temperature, can be realized to function of temperature compensation control in compensation time and compensation journey based on operation of air conditioner load
Reasonable Regulation And Control on degree, reaches Thermal comfort regulation and the equilibrium of low energy consumption energy saving.
And, prestored in air-conditioning be indoor target temperature scope, outdoor temperature scope and with indoor objects temperature
The degree scope multiple run times corresponding with outdoor temperature scope and multiple compensation temperatures.Temperature is performed during operation of air conditioner
During degree compensation control, setting run time and setting compensation temperature are called by following processes respectively:
Setting run time passes through following method calls:By indoor temperature transmitter detect current indoor target temperature with it is advance
The indoor target temperature scope of storage is made comparisons, and judges the indoor target temperature scope belonging to current indoor target temperature;By room
The current outdoor temperature of outer temperature sensor detection is made comparisons with the outdoor temperature scope for prestoring, and judges current outdoor temperature
Affiliated outdoor temperature scope;It is corresponding with indoor target temperature scope and outdoor temperature scope many according to what is prestored
In individual run time search with current indoor target temperature belonging to indoor target temperature scope and current outdoor temperature belonging to
The corresponding run time of outdoor temperature scope is called as setting run time;
Setting compensation temperature passes through following method calls:By current indoor target temperature and the indoor target temperature model for prestoring
Enclose and make comparisons, judge the indoor target temperature scope belonging to current indoor target temperature;By current outdoor temperature with prestore
Outdoor temperature scope make comparisons, judge the outdoor temperature scope belonging to current outdoor temperature;According to prestoring and indoor
In target temperature range and the corresponding multiple compensation temperatures of outdoor temperature scope search with current indoor target temperature belonging to
The indoor target temperature scope compensation temperature corresponding with the outdoor temperature scope belonging to current outdoor temperature is used as setting compensation
Temperature, and call.
Certainly, in actual control process, indoor target temperature scope belonging to current indoor target temperature and cup is worked as
Outdoor temperature scope belonging to outer temperature only needs to judge once, is then gone to search and call corresponding setting according to result of determination
Run time and setting compensation temperature, and without judging twice affiliated scope, foregoing description is called only for complete explanation and set
Determine the process of run time and setting compensation temperature.
It is above-mentioned to be determined in the way of temperature range and call setting run time and setting compensation temperature, data processing amount
Small, control process is simple, be more beneficial for carrying out air-conditioner in time, efficiently control, improve the speed that Thermal comfort is adjusted,
Reduce operation energy consumption.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than is limited;Although with reference to foregoing reality
Example is applied to be described in detail the present invention, for the person of ordinary skill of the art, still can be to foregoing implementation
Technical scheme described in example is modified, or carries out equivalent to which part technical characteristic;And these are changed or replace
Change, do not make the spirit and scope of the essence disengaging claimed technical solution of the invention of appropriate technical solution.
Claims (8)
1. a kind of control method of convertible frequency air-conditioner, the convertible frequency air-conditioner is wall-hanging air conditioner, it is characterised in that methods described bag
Include:
Air-conditioning start operation refrigeration mode, after the compressor operating time of air-conditioning reaches setting run time, obtains Indoor Temperature
The current indoor temperature of degree sensor detection, as the first indoor temperature, by first indoor temperature and setting compensation temperature
Difference as the second indoor temperature, calculate the temperature difference between second indoor temperature and current indoor target temperature, obtain
The indoor temperature difference, room temperature PID computing is carried out according to the indoor temperature difference, obtains first object frequency;
Second indoor temperature is made comparisons with the comfort temperature of setting;
If second indoor temperature is not less than the comfort temperature, following room temperature PID controls are performed:
The compressor according to the first object FREQUENCY CONTROL;
If second indoor temperature is less than the comfort temperature, following dual PID controls are performed:
The coil temperature of A/C evaporator is detected, the temperature difference between the coil temperature and coil pipe target temperature is calculated, disk is obtained
The pipe temperature difference, disk temperature PID arithmetic is carried out according to the coil pipe temperature difference, obtains the second target frequency;According to the first object frequency
The compressor is controlled with the smaller value in second target frequency;The coil pipe target temperature is according to the current indoor mesh
Mark temperature determines, and it is small to meet the current indoor target temperature hour coil pipe target temperature.
2. the control method of convertible frequency air-conditioner according to claim 1, it is characterised in that the coil pipe target temperature is according to institute
The determination of current indoor target temperature is stated, is specifically included:
Obtain indoor recommendation target temperature and coil pipe recommends target temperature;
The difference of the indoor recommendation target temperature and the current indoor target temperature is calculated, as the first difference;
Second difference is obtained according to the differences of the second difference of formula=a* first;A is no more than 1 positive number;
The difference that the coil pipe recommends target temperature and second difference is calculated, result of calculation is defined as performing the disk temperature PID
The actual coil pipe target temperature of computing.
3. the control method of convertible frequency air-conditioner according to claim 1, it is characterised in that the setting run time is advance
The run time corresponding with the current indoor target temperature and current outdoor temperature for storing and calling, the setting compensation
Temperature is the compensation temperature corresponding with the current indoor target temperature and the current outdoor temperature for prestoring and calling
Degree.
4. the control method of convertible frequency air-conditioner according to claim 3, it is characterised in that under the setting run time passes through
State method call:
The current indoor target temperature is made comparisons with the indoor target temperature scope for prestoring, the current indoor is judged
Indoor target temperature scope belonging to target temperature;The current outdoor temperature and the outdoor temperature scope for prestoring are made to compare
Compared with judging the outdoor temperature scope belonging to the current outdoor temperature;According to prestore and indoor target temperature scope and
Searched in the corresponding multiple run times of outdoor temperature scope and the indoor objects temperature belonging to the current indoor target temperature
When the degree scope run time corresponding with the outdoor temperature scope belonging to the current outdoor temperature is as the setting operation
Between, and call;
The setting compensation temperature passes through following method calls:
The current indoor target temperature is made comparisons with the indoor target temperature scope for prestoring, the current indoor is judged
Indoor target temperature scope belonging to target temperature;The current outdoor temperature and the outdoor temperature scope for prestoring are made to compare
Compared with judging the outdoor temperature scope belonging to the current outdoor temperature;According to prestore and indoor target temperature scope and
Searched in the corresponding multiple compensation temperatures of outdoor temperature scope and the indoor objects temperature belonging to the current indoor target temperature
The degree scope compensation temperature corresponding with the outdoor temperature scope belonging to the current outdoor temperature is used as the setting compensation temperature
Degree, and call.
5. the control method of convertible frequency air-conditioner according to any one of claim 1 to 4, it is characterised in that described performing
During dual PID control, indoor temperature described in real-time detection calculates second indoor temperature, and by second indoor temperature
Made comparisons with the comfort temperature, when second indoor temperature is not less than the comfort temperature, exit the dual PID controls
System, performs the room temperature PID control.
6. the control method of convertible frequency air-conditioner according to claim 5, it is characterised in that performing the dual PID control
When, indoor temperature described in real-time detection calculates second indoor temperature, and by second indoor temperature and the comfortable temperature
Degree is made comparisons, and the comfort temperature and second indoor temperature and the comfortable temperature are not less than in second indoor temperature
When the difference of degree is more than the difference for setting, the dual PID control is exited, perform the room temperature PID control.
7. the control method of convertible frequency air-conditioner according to claim 1 and 2, it is characterised in that performing the dual PID controls
When processed, the current operation frequency of the compressor is obtained, using the current operation frequency as the initial of the disk temperature PID arithmetic
Frequency, and the disk temperature PID arithmetic is carried out according to the coil pipe temperature difference.
8. the control method of convertible frequency air-conditioner according to claim 1 and 2, it is characterised in that in air conditioner refrigerating running
In, if detecting the wind speed of user's setting, control the blower fan of air-conditioning to be run according to the wind speed of the setting;Otherwise, institute is controlled
Blower fan is stated to be run according to highest wind velocity.
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CN107747793A (en) * | 2017-10-16 | 2018-03-02 | 广东美的暖通设备有限公司 | Transducer air conditioning and its control method, device |
CN109163424A (en) * | 2018-09-13 | 2019-01-08 | 宁波奥克斯电气股份有限公司 | A kind of the dual temperature difference control method and system of convertible frequency air-conditioner |
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