CN106440591A - Control method for high-pressure ratio of air conditioner, controller and air conditioner control system - Google Patents
Control method for high-pressure ratio of air conditioner, controller and air conditioner control system Download PDFInfo
- Publication number
- CN106440591A CN106440591A CN201610973723.9A CN201610973723A CN106440591A CN 106440591 A CN106440591 A CN 106440591A CN 201610973723 A CN201610973723 A CN 201610973723A CN 106440591 A CN106440591 A CN 106440591A
- Authority
- CN
- China
- Prior art keywords
- pressure value
- actual measurement
- air
- value
- pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/005—Arrangement or mounting of control or safety devices of safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2500/00—Problems to be solved
- F25B2500/06—Damage
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/021—Inverters therefor
Abstract
The application provides a control method for a high-pressure ratio of an air conditioner, a controller and an air conditioner control system. The method comprises the following steps of: bringing the actual low-pressure pressure value to a linear equation of the highest high-pressure ratio line of equipment by acquiring the actual high-pressure pressure value and the actual low-pressure pressure value of air conditioner equipment and calculating a visual high-pressure pressure value; and judging whether the air conditioner equipment is in a high-pressure ratio region or not by comparing the actual high-pressure pressure value with the visual high-pressure pressure value, if so, reducing the frequency of the compressor. Therefore, the problem that the service life of the air conditioner equipment is shortened as the air conditioner equipment is in the high-pressure ratio region for a long time is solved.
Description
Technical field
The present invention relates to air conditioner technical field is and in particular to a kind of air-conditioning high pressure ratio control method, controller and sky
Adjust control system.
Background technology
The ratio of the high-pressure of the air-conditioning that air-conditioning high pressure ratio refers to and low pressure, described high-pressure refers to air conditioner compressed
The pressure at expulsion of machine outlet side or condensing pressure, low pressure refers to pressure of inspiration(Pi) or the vapor pres- sure of compressor of air conditioner entrance side
Power.
Referring to Fig. 1, its vertical coordinate is used for characterizing the high-pressure of air-conditioning, and abscissa is used for characterizing the low pressure of air-conditioning,
It is to be high pressure ratio regional extent during compressor of air conditioner reliability service by the region that coordinate ABCDE surrounds, determined by coordinate A and B
Air-conditioning maximal pressure than the linear equation of line, when air-conditioning work, when air-conditioning actual measurement high-pressure value be more than according to described highest
During the calculated virtual high-pressure value of linear equation of pressure ratio line, that is, show air-conditioning work in high pressure ratio area, if air-conditioning
Work long hours when high pressure ratio area, the compressor life-span can be had a strong impact on, setting when serious may result in unit damage.
How to prevent from working long hours the device damage causing in high pressure ratio area due to air-conditioning, become people in the art
One of member's technical problem urgently to be resolved hurrily.
Content of the invention
In view of this, the embodiment of the present invention provides a kind of air-conditioning high pressure ratio control method, controller and air-conditioner control system,
To solve the problems, such as because air-conditioning equipment is chronically at high pressure ratio area, equipment to be caused in prior art to damage.
For achieving the above object, the embodiment of the present invention provides following technical scheme：
A kind of air-conditioning high pressure ratio control method, is applied in air-conditioner control system, including：
Obtain the reliability service model that high-pressure value during air-conditioning equipment compressor reliability service and low pressure value form
Enclose；
It is calculated maximal pressure during compressor reliability service according to the apex coordinate of described reliable operating ranges than line
Linear equation；
Obtain actual measurement high-pressure value and the actual measurement low pressure value of air-conditioning equipment；
Described actual measurement low pressure value is brought into described linear equation, is calculated virtual high-pressure value；
Judge whether described actual measurement high-pressure value is more than described virtual high-pressure value, if it is, reducing described compression
The frequency of machine, obtains actual measurement high-pressure value and the actual measurement low pressure value of air-conditioning equipment, and executes subsequent step.
Preferably, in above-mentioned air-conditioning high pressure ratio control method, the described frequency reducing described compressor, obtain air-conditioning equipment
Actual measurement high-pressure value and actual measurement low pressure value, including：
The frequency reducing described compressor reduces setting value, and starts timing；
Judge whether timing duration reaches setting duration T, if it is, obtaining actual measurement high-pressure value and the reality of air-conditioning equipment
Survey low pressure value.
Preferably, in above-mentioned air-conditioning high pressure ratio control method, described judge that whether described actual measurement high-pressure value is more than institute
Stating virtual high-pressure value, if it is, reducing the frequency of described compressor, obtaining actual measurement high-pressure value and the reality of air-conditioning equipment
Survey low pressure value, and execute subsequent step, specifically include：
Judge whether described actual measurement high-pressure value is more than described virtual high-pressure value, if it is, judging described compression
Whether the frequency of machine reaches predeterminated frequency lower limit, if not up to, reducing the frequency of described compressor, obtains air-conditioning equipment
Actual measurement high-pressure value and actual measurement low pressure value, and execute subsequent step.
Preferably, in above-mentioned air-conditioning high pressure ratio control method, the described frequency reducing described compressor reduces setting value, bag
Include：
Transfer current count value；
The setting value matching with described current count value according to default mapping table acquisition；
Control the frequency reducing described compressor to reduce described setting value, control the size of count value to add 1；
Method also includes：When described actual measurement high-pressure value not no more than described virtual high-pressure value when, initialize institute
State count value.
Preferably, in above-mentioned air-conditioning high pressure ratio control method, described the actual measurement high-pressure value of air-conditioning equipment and reality are obtained
Survey low pressure value, including：
Obtain the actual measurement high voltage nature parameter for characterizing described high-pressure value and be used for characterizing described low pressure value
Actual measurement low pressure signature parameter；
Obtain the actual measurement high-pressure value corresponding with described actual measurement high voltage nature parameter, Yi Jiyu according to default mapping table
The corresponding actual measurement low pressure value of described actual measurement low pressure signature parameter.
Preferably, in above-mentioned air-conditioning high pressure ratio control method, described actual measurement high voltage nature parameter be measurement obtain described
The condensation temperature of air-conditioning equipment, described actual measurement low pressure signature parameter is the evaporating temperature of the described air-conditioning equipment that measurement obtains.
A kind of air-conditioning high pressure ratio controller, is applied in air-conditioner control system, including：
Line style equation acquiring unit, for obtaining high-pressure value and low pressure pressure during air-conditioning equipment compressor reliability service
The reliable operating ranges of force value composition, when being calculated compressor reliability service according to the apex coordinate of described reliable operating ranges
Maximal pressure than line linear equation；
Observed pressure value collecting unit, for when set the moment reach when or get judging unit output trigger
When, obtain actual measurement high-pressure value and the actual measurement low pressure value of air-conditioning equipment；
Virtual high pressure computing unit, for bringing described actual measurement low pressure value into described linear equation, is calculated void
Intend high-pressure value；
Judging unit, for judging whether described actual measurement high-pressure value is more than described virtual high-pressure value, if it is,
Export the control signal for controlling the frequency of described compressor to reduce, to described observed pressure value collecting unit output triggering letter
Number.
Preferably, in above-mentioned air-conditioning high pressure ratio controller, it is provided with timing unit in described judging unit, described judgement list
Unit is specifically configured to：
For judging whether described actual measurement high-pressure value is more than described virtual high-pressure value, if it is, export being used for
Control the control signal of the setting value that the frequency of described compressor reduces, control described timing unit to start timing, when described meter
When the timing duration of Shi Danyuan reaches setting duration T, export trigger to described observed pressure value collecting unit.
Preferably, in above-mentioned air-conditioning high pressure ratio controller, in described judging unit, it is also configured with sub- judging unit, described sentence
Disconnected unit is specifically configured to：
Judge whether described actual measurement high-pressure value is more than described virtual high-pressure value, if it is, it is single to control son to judge
Unit judges whether the frequency of described compressor reaches predeterminated frequency lower limit, if not up to, exported for controlling described compression
The control signal of the setting value that the frequency of machine reduces, controls described timing unit to start timing, when the timing of described timing unit
When duration reaches setting duration T, export trigger to described observed pressure value collecting unit.
Preferably, in above-mentioned air-conditioning high pressure ratio controller, also include count value dispensing unit；
Described count value dispensing unit is used for：Transfer the count value of storage, obtain according to default mapping table current with described
The setting value that count value matches, described setting value is sent to described judging unit, exports when described judging unit is detected
The first trigger when, control the size of described count value to add 1, when the second triggering letter getting the output of described judging unit
Number when, initialize described count value；
Described judging unit is additionally operable to：It is more than described virtual high-pressure value when determining described actual measurement high-pressure value
When, export the first trigger to described enumerator dispensing unit, described actual measurement high-pressure value is no more than described when determining
During virtual high-pressure value, export the second trigger to described enumerator dispensing unit.
Preferably, in above-mentioned air-conditioning high pressure ratio controller, described observed pressure value collecting unit, it is specifically configured to：Obtain
Take in the actual measurement high voltage nature parameter characterizing described high-pressure value and be used for characterizing the actual measurement low pressure of described low pressure value
Characteristic parameter；Obtain the actual measurement high-pressure value corresponding with described actual measurement high voltage nature parameter according to default mapping table, and
The actual measurement low pressure value corresponding with described actual measurement low pressure signature parameter.
A kind of air-conditioner control system, application has air-conditioning high pressure ratio controller disclosed in above-mentioned any one embodiment.
Based on technique scheme, air-conditioning high pressure ratio control method provided in an embodiment of the present invention, controller and air-conditioning control
System processed, by obtaining actual measurement high-pressure value and the actual measurement low pressure value of air-conditioning equipment, by described actual measurement low pressure value
Bring the linear equation that maximal pressure is than line into, be calculated virtual high-pressure value；By relatively more described actual measurement high-pressure value and
The size of described virtual high-pressure value judges whether air-conditioning equipment is in high pressure ratio area, if it is, reducing described compressor
Frequency, thus solve the problems, such as that air-conditioning equipment reduces the service life of air-conditioning equipment due to being chronically at high pressure ratio area.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Have technology description in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only this
Inventive embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing providing obtains other accompanying drawings.
Fig. 1 is the schematic diagram of the reliable operating ranges of air-conditioning equipment of air-conditioning equipment in prior art；
Fig. 2 is a kind of schematic flow sheet of air-conditioning high pressure ratio control method disclosed in the embodiment of the present application；
Fig. 3 is a kind of schematic flow sheet of air-conditioning high pressure ratio control method disclosed in another embodiment of the application；
Fig. 4 is a kind of schematic flow sheet of air-conditioning high pressure ratio control method disclosed in the another embodiment of the application；
Fig. 5 is a kind of schematic flow sheet of air-conditioning low-pressure ratio control method disclosed in the embodiment of the present application；
Fig. 6 is a kind of structural representation of air-conditioning low-pressure ratio controller disclosed in the embodiment of the present application.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation description is it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of not making creative work
Embodiment, broadly falls into the scope of protection of the invention.
In order to solve in prior art air-conditioning equipment due to working long hours when high pressure ratio area, and cause air-conditioning equipment
The problem of service life serious curtailment, the embodiment of the present application discloses a kind of air-conditioning high pressure ratio control method, controller and air-conditioning
Control system, when described air-conditioning equipment is detected and being operated in high pressure ratio area, to reduce the frequency of compressor in described air-conditioning equipment
Rate, thus reducing the now ratio between air-conditioning equipment high-pressure and low pressure, and then it is non-that air-conditioning equipment is operated in
High pressure ratio area.
Fig. 2 is a kind of air-conditioning high pressure ratio control method disclosed in the embodiment of the present application, and the method is applied to airconditioning control system
In system, referring to Fig. 2, method includes：
Step S101：Obtain the reliable operating ranges of air-conditioning equipment；
Disclosed in executing the embodiment of the present application during control method, need originally to determine the high pressure ratio of described air-conditioning equipment
Area, the high pressure ratio area of described air-conditioning equipment can be calculated by carrying out data analysiss to the reliable operating ranges of described air-conditioning equipment
Arrive, described reliable operating ranges refer to air-conditioning equipment compressor under various regimes reliability service when high-pressure value and low
The interval range of pressure pressure value composition, sets for example, with reference to being air-conditioning by the interval range that apex coordinate ABCDE forms in Fig. 1
Standby reliable operating ranges, wherein, described reliable operating ranges can be pre-stored in described air-conditioner control system naturally it is also possible to by
User input obtains；
Step S102：It is calculated the linear equation that maximal pressure is than line；
Whether current high-pressure value and low pressure value in order to judge air-conditioning equipment are located at high pressure ratio area, need to obtain
Each apex coordinate of described reliable operating ranges, is calculated during compressor of air conditioner reliability service according to described apex coordinate
Maximal pressure, than the linear equation of line, for example, passes through the line style equation of A, B point coordinates, when the high pressure pressure of described air-conditioning equipment in Fig. 1
Force value and low pressure value pass through the top of line style equation of A, B point coordinates in being located at described in Fig. 1 coordinate system when, you can think
Described air-conditioning equipment works in high pressure ratio area；
Step S103：Obtain actual measurement high-pressure value and the actual measurement low pressure value of air-conditioning equipment；
In this step, when air-conditioning equipment is in running order, can be according to default detection frequency and trigger collection institute
State actual measurement high-pressure value tc of air-conditioning equipment current state ' and actual measurement low pressure value to ', wherein, user can be according to certainly
Body demand sets described detection frequency naturally it is also possible to the mode of manual triggering triggers this step；
Step S104：Described actual measurement low pressure value is brought into described linear equation, is calculated virtual high-pressure value；
Referring to Fig. 1, if A point coordinates is (to1, tc1), B point coordinates is (to2, tc2), thus can try to achieve maximal pressure and compare line
Linear equation tc=a × to+b, wherein, a, b are constant, and tc represents high-pressure value, and ta represents low pressure value.Work as air-conditioning
When equipment runs, we can obtain actual measurement high-pressure value tc of air-conditioning equipment with real-time detection ' and actual measurement low pressure value
To ', often described will survey low pressure value to ' bring line style equation tc=a × to+b into, a virtual high-pressure can be calculated
Value tc "；
Step S105：Judge whether described actual measurement high-pressure value is more than described virtual high-pressure value, if it is, execution
Step S106；
In this step, by by virtual high-pressure value tc calculated in step S104 " with actual measurement high-pressure value
Tc ' contrasts, and judges whether described air-conditioning equipment is in high pressure ratio area, if tc ' according to comparing result>Tc ", then show described sky
Tune equipment is in high pressure ratio area, execution step S106；
Step S106：Reduce the frequency of described compressor, execution step S103；
The work frequency of the size of the high-pressure value of described air-conditioning equipment and low pressure value and the compressor of air-conditioning equipment
Rate is relevant, and the frequency of compressor of air conditioner is higher, and described high-pressure value is bigger, and low pressure value is less, in this regard, work as sky is detected
When tune equipment is in high pressure ratio area, in order to prevent air-conditioning equipment impaired, this step controls the work frequency of the compressor of air-conditioning equipment
Rate reduces so as to high-pressure value reduces, low pressure value raises, thus preventing described air-conditioning equipment from working long hours in high pressure
Compare area.
Technical scheme disclosed in the above embodiments of the present application, the application passes through to obtain the actual measurement high-pressure of air-conditioning equipment
Value and actual measurement low pressure value, described actual measurement low pressure value are brought into the linear equation that maximal pressure is than line, are calculated virtual
High-pressure value；Judge that air-conditioning equipment is by the size of relatively more described actual measurement high-pressure value and described virtual high-pressure value
No be in high pressure ratio area, if it is, reduce described compressor frequency, thus solving air-conditioning equipment due to being chronically at high pressure
Reduce the problem of the service life of air-conditioning equipment than area.
In view of described after reducing the frequency of described compressor, the high-pressure value of described air-conditioning equipment and low pressure
Value could be stablized after needing certain time, if detecting high-pressure value and the low pressure value of air-conditioning equipment immediately again, can
The data value that can detect is not accurate enough, in this regard, referring to Fig. 3, in said method, described step S106 specifically can include：
Step S1061：The frequency reducing described compressor reduces setting value, and starts timing；
In this step, user can set to the amount of the reduction of described compressor of air conditioner；
Step S1062：Judge whether timing duration reaches setting duration T, if it is, execution step S103；
Wherein, depending on described setting duration can be according to the design parameter of described air-conditioning equipment, as long as ensureing when reduction institute
After stating the frequency reduction setting value preset duration of compressor, the high-pressure value of described air-conditioning equipment and low pressure value can be located
In steady statue.
In order to ensure air-conditioning equipment normal work, the operating frequency of the compressor of described air-conditioning equipment should be provided with a lower limit
Value, when the operating frequency of described compressor reaches described lower limit, even if described air-conditioning equipment is in high pressure ratio state, also not
Reduce the frequency of described compressor, in this regard, referring to Fig. 3, described step S105 specifically can include：
Step S1051：Judge whether described actual measurement high-pressure value is more than described virtual high-pressure value, if it is, holding
Row step S151；
Step S1052：Judge whether the frequency of described compressor reaches predeterminated frequency lower limit, if not up to, execution
Step S106.
In technical scheme disclosed in another embodiment of the application, in order to quickly by air-conditioning equipment by high pressure ratio zone state
Be changed into non-high pressure ratio zone state, the setting value of the frequency of each described compressor reducing can be set respectively, for example, when
In a cycle, the described for the first time frequency reducing described compressor reduces setting value M, second described compressor of described reduction
Frequency reduce setting value N, for the third time described reduce described compressor frequency reduce setting value Z, described M can be set as
15 hertz, N is set as 12 hertz, and Z is set as 8 hertz.
That is, when in said method, referring to Fig. 4, described step S106 specifically can include：
Step S1063：Transfer current count value；
Step S1064：The setting value matching with described current count value according to default mapping table acquisition, wherein, described
Be stored with default mapping table with described current count value one-to-one setting value；
Step S1065：The frequency reducing described compressor is controlled to reduce described setting value；
Step S1066：The size controlling count value adds 1；
Step S103：Reduce the frequency of described compressor.
Said method also includes：When described actual measurement high-pressure value not no more than described virtual high-pressure value when, initially
Change described count value, wherein, the initial value of described count value could be arranged to 1.
Certainly, when the operating frequency of described compressor is too high, need repeatedly its frequency values of regulation that air-conditioning just can be made to set
For being not at high pressure ratio zone state, its regulating cycle is long, may result in device damage in this process, in this regard, step
Also include between S1063 and S1064：
Judge whether the size of current count value reaches setting value, if it is, under controlling the frequency of described compressor to be changed into
Limit value, and exit the protection of high pressure ratio area.
In technical scheme disclosed in the above embodiments of the present application, in the actual measurement high-pressure value obtaining air-conditioning equipment and reality
Can be obtained in the way of directly high-pressure value and low pressure value being detected using pressure transducer when surveying low pressure value
Obtain naturally it is also possible to be obtained by the characteristic parameter that other are associated with described high-pressure value and low pressure value, for example, institute
State characteristic parameter condensation temperature and evaporating temperature, described condensation temperature can characterize the size of described high-pressure value, described steaming
Send out the size that temperature can characterize described low pressure value, after condensation temperature and evaporating temperature is detected, can be by tabling look-up
Only and survey low pressure value to actual measurement high-pressure；
Specifically, described step S103 includes：
Obtain the actual measurement high voltage nature parameter for characterizing described high-pressure value and be used for characterizing described low pressure value
Actual measurement low pressure signature parameter；
Obtain the actual measurement high-pressure value corresponding with described actual measurement high voltage nature parameter, Yi Jiyu according to default mapping table
The corresponding actual measurement low pressure value of described actual measurement low pressure signature parameter.
It should be noted that because the reliability service region of described air-conditioning equipment is irregular polygon, thus, one
Air-conditioning equipment may have a case that the linear equation that multiple maximal pressures are than line, in this regard, described step S102 needs to calculate
To each maximal pressure than line linear equation, described step S104 needs to bring described actual measurement low pressure value into each maximal pressure
The ratio linear equation of line, obtains multiple virtual high-pressure values, as long as judging in step S105 that described actual measurement high-pressure value is big
In any one virtual high-pressure value, that is, show that air-conditioning equipment is in high pressure ratio state, execution step S106.
Similar with such scheme and principle, the scheme solution air-conditioning equipment that the application can also be similar with above-mentioned principle is long-term
It is in the problem of low-pressure ratio zone state.
Referring to Fig. 5, the method can be：
Step S501：Obtain the reliable operating ranges of air-conditioning equipment；
Step S502：It is calculated the linear equation that minimal pressure is than line；
Whether current high-pressure value and low pressure value in order to judge air-conditioning equipment are located at low-pressure ratio area, need to obtain
Each apex coordinate of described reliable operating ranges, is calculated during compressor of air conditioner reliability service according to described apex coordinate
Minimal pressure, than the linear equation of line, for example, passes through the line style equation of C, D point coordinates, when the high pressure pressure of described air-conditioning equipment in Fig. 1
Force value and low pressure value pass through the lower section of line style equation of C, D point coordinates in being located at described in Fig. 1 coordinate system when, you can think
Described air-conditioning equipment works in low-pressure ratio area；
Step S503：Obtain actual measurement high-pressure value and the actual measurement low pressure value of air-conditioning equipment；
Step S504：Described actual measurement low pressure value is brought into described minimal pressure than the linear equation of line, is calculated void
Intend high-pressure value；
Step S505：Judge whether described actual measurement high-pressure value is less than described virtual high-pressure value, if it is, execution
Step S506；
Step S506：Raise the frequency of described compressor, execution step S503.
Corresponding with said method, disclosed herein as well is a kind of air-conditioning high pressure ratio controller, it is applied to airconditioning control system
In system, this air-conditioning high pressure ratio controller is corresponding with above-mentioned high pressure ratio control method, and both can mutually use for reference, referring to Fig. 6, its
Can include：
Line style equation acquiring unit 10, for obtaining high-pressure value and low pressure during air-conditioning equipment compressor reliability service
The reliable operating ranges of pressure value composition, are calculated compressor reliability service according to the apex coordinate of described reliable operating ranges
When maximal pressure than line linear equation；
Observed pressure value collecting unit 20, for when set the moment reach when or get judging unit output triggering letter
Number when, obtain air-conditioning equipment actual measurement high-pressure value and actual measurement low pressure value；
Virtual high pressure computing unit 50, for bringing described actual measurement low pressure value into described linear equation, is calculated
Virtual high-pressure value；
Judging unit 30, for judging whether described actual measurement high-pressure value is more than described virtual high-pressure value, if
It is to export the control signal for controlling the frequency of described compressor to reduce, touch to the output of described observed pressure value collecting unit
Signal.
Corresponding with said method, it is provided with timing unit 31 in described judging unit 30, described judging unit 30 is concrete
It is configured to：
For judging whether described actual measurement high-pressure value is more than described virtual high-pressure value, if it is, export being used for
Control the control signal of the setting value that the frequency of described compressor reduces, control described timing unit 31 to start timing, when described
When the timing duration of timing unit 31 reaches setting duration T, export trigger to described observed pressure value collecting unit.
Corresponding with said method, it is also configured with sub- judging unit 32, described judging unit 30 in described judging unit 30
It is specifically configured to：
Judge whether described actual measurement high-pressure value is more than described virtual high-pressure value, if it is, it is single to control son to judge
Unit 32 judges whether the frequency of described compressor reaches predeterminated frequency lower limit, if not up to, exported for controlling described pressure
The control signal of the setting value that the frequency of contracting machine reduces, controls described timing unit 31 to start timing, when described timing unit 31
Timing duration reach setting duration T when, to described observed pressure value collecting unit export trigger.
Corresponding with said method, described air-conditioning high pressure ratio controller also includes count value dispensing unit 40；
Described count value dispensing unit 40 is used for：Transfer the count value of itself storage, obtain and institute according to default mapping table
State the setting value that current count value matches, described setting value is sent to described judging unit 30, when described judgement is detected
During the first trigger of unit 30 output, control the size of described count value to add 1, export when getting described judging unit 30
The second trigger when, initialize described count value；
Described judging unit 30 is additionally operable to：It is more than described virtual high-pressure value when determining described actual measurement high-pressure value
When, export the first trigger to described enumerator dispensing unit 40, be not more than institute when determining described actual measurement high-pressure value
When stating virtual high-pressure value, export the second trigger to described enumerator dispensing unit 40.
Corresponding with said method, described count value dispensing unit 40 is additionally operable to：Whether judge the size of current count value
Reaching setting value, if it is, controlling the frequency of described compressor to be changed into lower limit, and exiting the protection of high pressure ratio area.
Corresponding with said method, described observed pressure value collecting unit 20, it is specifically configured to：Obtain for characterizing
State the actual measurement high voltage nature parameter of high-pressure value and the actual measurement low pressure signature parameter for characterizing described low pressure value；Foundation
Default mapping table obtains and the described actual measurement corresponding actual measurement high-pressure value of high voltage nature parameter, and with described actual measurement low pressure
The corresponding actual measurement low pressure value of characteristic parameter.
Corresponding with said method, when described air-conditioning equipment include multiple maximal pressures than line linear equation when, described line
Type equation acquiring unit 10 is used for being calculated the linear equation than line for each maximal pressure of described air-conditioning equipment, described virtual height
Pressure computing unit 50 is multiple more virtual than the linear equation of line obtains for bringing described actual measurement low pressure value into each maximal pressure
High-pressure value, described judging unit 30 is used for being more than any one virtual high-pressure when judgement described actual measurement high-pressure value
During value, export the control signal for controlling the frequency of described compressor to reduce, to the output of described observed pressure value collecting unit
Trigger.
Corresponding with said method, disclosed herein as well is a kind of air-conditioning low-pressure ratio controller, for obtaining air-conditioning equipment
Reliable operating ranges, be calculated the linear equation that minimal pressure is than line, obtain actual measurement high-pressure value and the reality of air-conditioning equipment
Survey low pressure value, described actual measurement low pressure value is brought into described minimal pressure than the linear equation of line, is calculated virtual height
Pressure pressure value, judges whether described actual measurement high-pressure value is less than described virtual high-pressure value, if it is, raising described compression
The frequency of machine, obtains actual measurement high-pressure value and the actual measurement low pressure value of air-conditioning equipment again, and continues executing with subsequent action.
Corresponding to controller noted above, disclosed herein as well is a kind of air-conditioner control system and application have described airconditioning control
The air-conditioning of system, application in described air-conditioner control system has air-conditioning high pressure ratio control disclosed in the application above-mentioned any one embodiment
Device processed and/or air-conditioning low-pressure ratio controller.
For convenience of description, it is divided into various modules to be respectively described with function when describing system above.Certainly, implementing this
The function of each module can be realized in same or multiple softwares and/or hardware during application.
Each embodiment in this specification is all described by the way of going forward one by one, identical similar portion between each embodiment
Divide mutually referring to what each embodiment stressed is the difference with other embodiment.Especially for system or
For system embodiment, because it is substantially similar to embodiment of the method, so describing fairly simple, referring to method in place of correlation
The part of embodiment illustrates.System described above and system embodiment are only schematically wherein said conduct
Separating component explanation unit can be or may not be physically separate, as the part that unit shows can be or
Person may not be physical location, you can with positioned at a place, or can also be distributed on multiple NEs.Can root
Factually border need select the purpose to realize this embodiment scheme for some or all of module therein.Ordinary skill
Personnel are not in the case of paying creative work, you can to understand and to implement.
Professional further appreciates that, in conjunction with the unit of each example of the embodiments described herein description
And algorithm steps, can with electronic hardware, computer software or the two be implemented in combination in, in order to clearly demonstrate hardware and
The interchangeability of software, generally describes composition and the step of each example in the above description according to function.These
Function to be executed with hardware or software mode actually, the application-specific depending on technical scheme and design constraint.Specialty
Technical staff can use different methods to each specific application realize described function, but this realization should
Think beyond the scope of this invention.
The step of the method in conjunction with the embodiments described herein description or algorithm can directly be held with hardware, processor
The software module of row, or the combination of the two is implementing.Software module can be placed in random access memory (RAM), internal memory, read-only deposit
Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, depositor, hard disk, moveable magnetic disc, CD-ROM or technology
In known any other form of storage medium in field.
Also, it should be noted herein, such as first and second or the like relational terms are used merely to one
Entity or operation are made a distinction with another entity or operation, and not necessarily require or imply between these entities or operation
There is any this actual relation or order.And, term " inclusion ", "comprising" or its any other variant are intended to contain
Comprising of lid nonexcludability, wants so that including a series of process of key elements, method, article or equipment and not only including those
Element, but also include other key elements being not expressly set out, or also include for this process, method, article or equipment
Intrinsic key element.In the absence of more restrictions, the key element that limited by sentence "including a ..." it is not excluded that
Also there is other identical element including in the process of described key element, method, article or equipment.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention.
Multiple modifications to these embodiments will be apparent from for those skilled in the art, as defined herein
General Principle can be realized without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention
It is not intended to be limited to the embodiments shown herein, and be to fit to and principles disclosed herein and features of novelty phase one
The scope the widest causing.
Claims (12)
1. a kind of air-conditioning high pressure ratio control method is it is characterised in that be applied in air-conditioner control system, including：
Obtain the reliable operating ranges that high-pressure value during air-conditioning equipment compressor reliability service and low pressure value form；
The maximal pressure being calculated according to the apex coordinate of described reliable operating ranges during compressor reliability service is more linear than line
Equation；
Obtain actual measurement high-pressure value and the actual measurement low pressure value of air-conditioning equipment；
Described actual measurement low pressure value is brought into described linear equation, is calculated virtual high-pressure value；
Judge whether described actual measurement high-pressure value is more than described virtual high-pressure value, if it is, reducing described compressor
Frequency, obtains actual measurement high-pressure value and the actual measurement low pressure value of air-conditioning equipment, and executes subsequent step.
2. air-conditioning high pressure ratio control method according to claim 1 is it is characterised in that the frequency of the described compressor of described reduction
Rate, obtains actual measurement high-pressure value and the actual measurement low pressure value of air-conditioning equipment, including：
The frequency reducing described compressor reduces setting value, and starts timing；
Judge whether timing duration reaches setting duration T, if it is, obtaining the actual measurement high-pressure value of air-conditioning equipment and surveying low
Pressure pressure value.
3. air-conditioning high pressure ratio control method according to claim 1 surveys high pressure pressure it is characterised in that described judgement is described
Whether force value is more than described virtual high-pressure value, if it is, reducing the frequency of described compressor, obtains the actual measurement of air-conditioning equipment
High-pressure value and actual measurement low pressure value, and execute subsequent step, specifically include：
Judge whether described actual measurement high-pressure value is more than described virtual high-pressure value, if it is, judging described compressor
Whether frequency reaches predeterminated frequency lower limit, if not up to, reducing the frequency of described compressor, obtains the actual measurement of air-conditioning equipment
High-pressure value and actual measurement low pressure value, and execute subsequent step.
4. air-conditioning high pressure ratio control method according to claim 2 is it is characterised in that the frequency of the described compressor of described reduction
Rate reduces setting value, including：
Transfer current count value；
The setting value matching with described current count value according to default mapping table acquisition；
Control the frequency reducing described compressor to reduce described setting value, control the size of count value to add 1；
Method also includes：When described actual measurement high-pressure value not no more than described virtual high-pressure value when, initialize described meter
Numerical value.
5. air-conditioning high pressure ratio control method according to claim 1 is it is characterised in that the actual measurement of described acquisition air-conditioning equipment
High-pressure value and actual measurement low pressure value, including：
Obtain for characterizing the actual measurement high voltage nature parameter of described high-pressure value and the reality for characterizing described low pressure value
Survey low pressure signature parameter；
Obtain the actual measurement high-pressure value corresponding with described actual measurement high voltage nature parameter according to default mapping table, and with described
The corresponding actual measurement low pressure value of actual measurement low pressure signature parameter.
6. air-conditioning high pressure ratio control method according to claim 5 is it is characterised in that described actual measurement high voltage nature parameter is
Measure the condensation temperature of the described air-conditioning equipment obtaining, described actual measurement low pressure signature parameter is the described air-conditioning equipment that measurement obtains
Evaporating temperature.
7. a kind of air-conditioning high pressure ratio controller is it is characterised in that be applied in air-conditioner control system, including：
Line style equation acquiring unit, for obtaining high-pressure value and low pressure value during air-conditioning equipment compressor reliability service
The reliable operating ranges of composition, are calculated during compressor reliability service according to the apex coordinate of described reliable operating ranges
The linear equation of high pressure ratio line；
Observed pressure value collecting unit, for when set the moment reach when or get judging unit output trigger when,
Obtain actual measurement high-pressure value and the actual measurement low pressure value of air-conditioning equipment；
Virtual high pressure computing unit, for bringing described actual measurement low pressure value into described linear equation, is calculated virtual height
Pressure pressure value；
Judging unit, for judging whether described actual measurement high-pressure value is more than described virtual high-pressure value, if it is, output
The control signal reducing for the frequency controlling described compressor, exports trigger to described observed pressure value collecting unit.
8. air-conditioning high pressure ratio controller according to claim 7 is it is characterised in that be provided with timing in described judging unit
Unit, described judging unit is specifically configured to：
For judging whether described actual measurement high-pressure value is more than described virtual high-pressure value, if it is, exporting for controlling
The control signal of the setting value that the frequency of described compressor reduces, controls described timing unit to start timing, when described timing list
When the timing duration of unit reaches setting duration T, export trigger to described observed pressure value collecting unit.
9. air-conditioning high pressure ratio controller according to claim 8 is it is characterised in that be also configured with son in described judging unit
Judging unit, described judging unit is specifically configured to：
Judge whether described actual measurement high-pressure value is more than described virtual high-pressure value, if it is, controlling sub- judging unit to sentence
Whether the frequency of disconnected described compressor reaches predeterminated frequency lower limit, if not up to, exported for controlling described compressor
The control signal of the setting value that frequency reduces, controls described timing unit to start timing, when the timing duration of described timing unit
When reaching setting duration T, export trigger to described observed pressure value collecting unit.
10. air-conditioning high pressure ratio controller according to claim 8 is it is characterised in that also include count value dispensing unit；
Described count value dispensing unit is used for：Transfer the count value of storage, obtain and described current count according to default mapping table
The setting value that value matches, described setting value is sent to described judging unit, when detecting the of described judging unit output
During one trigger, the size of described count value is controlled to add 1, when the second trigger getting described judging unit output
When, initialize described count value；
Described judging unit is additionally operable to：When determining described actual measurement high-pressure value more than described virtual high-pressure value, to
Described enumerator dispensing unit exports the first trigger, is not more than described virtual height when determining described actual measurement high-pressure value
During pressure pressure value, export the second trigger to described enumerator dispensing unit.
11. air-conditioning high pressure ratio controllers according to claim 7 it is characterised in that described observed pressure value collecting unit,
It is specifically configured to：Obtain the actual measurement high voltage nature parameter for characterizing described high-pressure value and be used for characterizing described low pressure pressure
The actual measurement low pressure signature parameter of force value；Obtain the actual measurement corresponding with described actual measurement high voltage nature parameter according to default mapping table high
Pressure pressure value, and the actual measurement low pressure value corresponding with described actual measurement low pressure signature parameter.
A kind of 12. air-conditioner control systems are it is characterised in that apply the sky having the right described in requirement 7-11 any one claim
Heighten pressure ratio controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610973723.9A CN106440591B (en) | 2016-10-28 | 2016-10-28 | A kind of air-conditioning high pressure ratio control method, controller and air-conditioner control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610973723.9A CN106440591B (en) | 2016-10-28 | 2016-10-28 | A kind of air-conditioning high pressure ratio control method, controller and air-conditioner control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106440591A true CN106440591A (en) | 2017-02-22 |
| CN106440591B CN106440591B (en) | 2019-01-22 |
Family
ID=58180111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610973723.9A Active CN106440591B (en) | 2016-10-28 | 2016-10-28 | A kind of air-conditioning high pressure ratio control method, controller and air-conditioner control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106440591B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019071654A1 (en) * | 2017-10-12 | 2019-04-18 | 广东美的暖通设备有限公司 | Air conditioning system and pressure ratio control method and device thereof |
| CN109654780A (en) * | 2016-10-31 | 2019-04-19 | 珠海格力电器股份有限公司 | For controlling the control method and heat pump unit of the operation of compressor |
| CN110332742A (en) * | 2019-07-08 | 2019-10-15 | 广东Tcl智能暖通设备有限公司 | Hot water apparatus and heat pump system control method, heat pump system control device |
| CN110631234A (en) * | 2019-09-30 | 2019-12-31 | 广东美的暖通设备有限公司 | Control method of air conditioner operation frequency, air conditioner and computer readable storage medium |
| CN112944600A (en) * | 2021-03-22 | 2021-06-11 | 珠海格力电器股份有限公司 | Air conditioner operation control method and system, air conditioner and storage medium |
| CN115235097A (en) * | 2022-08-08 | 2022-10-25 | 宁波奥克斯电气股份有限公司 | Control method of air conditioner and air conditioner |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05187728A (en) * | 1991-06-24 | 1993-07-27 | Baltimore Aircoil Co Inc | Method and device for controlling head pressure of air-conditioning or refrigeration system |
| CN101086361A (en) * | 2006-06-06 | 2007-12-12 | 乐金电子(天津)电器有限公司 | Air conditioner and control method thereof |
| WO2014154629A1 (en) * | 2013-03-26 | 2014-10-02 | Nuovo Pignone Srl | Methods and systems for controlling turbocompressors |
| CN104132487A (en) * | 2014-07-24 | 2014-11-05 | 康特能源科技(苏州)有限公司 | Air source heat pump system of double-pressure control |
-
2016
- 2016-10-28 CN CN201610973723.9A patent/CN106440591B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05187728A (en) * | 1991-06-24 | 1993-07-27 | Baltimore Aircoil Co Inc | Method and device for controlling head pressure of air-conditioning or refrigeration system |
| CN101086361A (en) * | 2006-06-06 | 2007-12-12 | 乐金电子(天津)电器有限公司 | Air conditioner and control method thereof |
| WO2014154629A1 (en) * | 2013-03-26 | 2014-10-02 | Nuovo Pignone Srl | Methods and systems for controlling turbocompressors |
| CN105308329A (en) * | 2013-03-26 | 2016-02-03 | 诺沃皮尼奥内股份有限公司 | Methods and systems for controlling turbocompressors |
| CN104132487A (en) * | 2014-07-24 | 2014-11-05 | 康特能源科技(苏州)有限公司 | Air source heat pump system of double-pressure control |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109654780A (en) * | 2016-10-31 | 2019-04-19 | 珠海格力电器股份有限公司 | For controlling the control method and heat pump unit of the operation of compressor |
| CN109654780B (en) * | 2016-10-31 | 2020-04-10 | 珠海格力电器股份有限公司 | Control method for controlling operation of compressor and heat pump unit |
| WO2019071654A1 (en) * | 2017-10-12 | 2019-04-18 | 广东美的暖通设备有限公司 | Air conditioning system and pressure ratio control method and device thereof |
| US11293657B2 (en) | 2017-10-12 | 2022-04-05 | Gd Midea Heating & Ventilating Equipment Co., Ltd. | Air conditioning system and pressure ratio control method and device thereof |
| CN110332742A (en) * | 2019-07-08 | 2019-10-15 | 广东Tcl智能暖通设备有限公司 | Hot water apparatus and heat pump system control method, heat pump system control device |
| CN110631234A (en) * | 2019-09-30 | 2019-12-31 | 广东美的暖通设备有限公司 | Control method of air conditioner operation frequency, air conditioner and computer readable storage medium |
| CN112944600A (en) * | 2021-03-22 | 2021-06-11 | 珠海格力电器股份有限公司 | Air conditioner operation control method and system, air conditioner and storage medium |
| CN112944600B (en) * | 2021-03-22 | 2022-03-29 | 珠海格力电器股份有限公司 | Air conditioner operation control method and system, air conditioner and storage medium |
| CN115235097A (en) * | 2022-08-08 | 2022-10-25 | 宁波奥克斯电气股份有限公司 | Control method of air conditioner and air conditioner |
| CN115235097B (en) * | 2022-08-08 | 2023-09-01 | 宁波奥克斯电气股份有限公司 | Air conditioner control method and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106440591B (en) | 2019-01-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106440591A (en) | Control method for high-pressure ratio of air conditioner, controller and air conditioner control system | |
| CN106642806B (en) | For controlling the control method and heat pump unit of the operation of compressor | |
| CN103925675B (en) | Air-conditioning enters the determination methods of defrosting mode, judgment means and air-conditioning | |
| US7260950B2 (en) | Air conditioning system and method operating suitably to user's characteristics | |
| CN105674479B (en) | Multi-gang air-conditioner progress control method and device | |
| CN105465962B (en) | Control system, the method and apparatus of compressor exhaust temperature | |
| CN110260466A (en) | Air-conditioning defrosting control method and device | |
| CA3040545C (en) | Method and system for controlling air flow within a ventilation system | |
| CN104481881B (en) | Air-conditioning unit compressor liquid impact determination method and system and air-conditioning unit | |
| WO2022160672A1 (en) | Method and apparatus for measuring amount of refrigerant in refrigeration system, and air conditioner | |
| CN205307649U (en) | Breathing mask performance detector | |
| CN106032929B (en) | Defrosting control method and device | |
| CN107120843A (en) | Control method, control device, water heater, the computer equipment of water heater | |
| CN107741041A (en) | The control method and air quantity self-adjusting lampblack absorber of a kind of air quantity self-adjusting lampblack absorber | |
| CN104676991B (en) | Air-conditioner and its Defrost method | |
| CN113864991B (en) | Method and device for correcting ambient temperature in air conditioner and air conditioner | |
| CN113375284B (en) | External fan control method and device and air conditioner | |
| CN109764477A (en) | Defrosting control method and device | |
| CN105626499B (en) | The low-voltage variation method and device of compressor of air conditioner | |
| CN109028490A (en) | A kind of door internal-external temperature difference control method, device and air conditioner | |
| CN104748319B (en) | Multicomputer air conditioner system control method, device and multicomputer air-conditioning system | |
| CN106369770B (en) | The control method and device of air conditioner, air conditioner | |
| CN110307569A (en) | The control method and control device of kitchen ventilator, kitchen ventilator | |
| CN109099555B (en) | A kind of vacuum degree measurement judgment method, device and air conditioner | |
| KR100512279B1 (en) | Air conditioning apparatus and method for tempering stress of user |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |