CN107917512A - A kind of control method of air-conditioning system, device and air conditioner - Google Patents

A kind of control method of air-conditioning system, device and air conditioner Download PDF

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Publication number
CN107917512A
CN107917512A CN201711071787.0A CN201711071787A CN107917512A CN 107917512 A CN107917512 A CN 107917512A CN 201711071787 A CN201711071787 A CN 201711071787A CN 107917512 A CN107917512 A CN 107917512A
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China
Prior art keywords
gear
wind turbine
pressure
set interval
refrigerant
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CN201711071787.0A
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CN107917512B (en
Inventor
王新利
许永锋
熊美兵
冯明坤
赵浩伟
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Midea Group Co Ltd
Guangdong Midea HVAC Equipment Co Ltd
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Midea Group Co Ltd
Guangdong Midea HVAC Equipment Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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  • Air Conditioning Control Device (AREA)

Abstract

The present invention proposes a kind of control method of air-conditioning system, device and air conditioner, and air-conditioning system includes outdoor unit, wherein, control method includes:Detection Compressor Discharge Pressure Pc, outdoor environment temperature Th in real time, condensator outlet refrigerant pressure P, condenser inlet refrigerant pressure and any one in the Compressor Discharge Pressure, outdoor condensator outlet line temperature Tc;Wind turbine is controlled to run the first preset time with preset gear;The corresponding saturation temperature of current refrigerant pressure is drawn according to condensator outlet refrigerant pressure P, condenser inlet refrigerant pressure and any one in the Compressor Discharge Pressure, and calculates current refrigerant coefficient n;According to the pre-set interval where refrigerant coefficient n, the operational taps of wind turbine are controlled.The present invention proposes a kind of control method of air-conditioning system, wind turbine is in optimal operating status, improves the heat transfer effect of whole air-conditioning system.

Description

A kind of control method of air-conditioning system, device and air conditioner
Technical field
The present invention relates to air conditioner technical field, in particular to a kind of control method of air-conditioning system, a kind of air-conditioning The control device of system, a kind of air conditioner.
Background technology
At present, the enhancing with awareness of saving energy with the improvement of people ' s living standards, air conditioner is energy saving with its, and control is flexible, The features such as easily installing and safeguard, has come into vast average family, and have been more and more widely used.In recent years, the energy is tight , national policy also proposes the energy saving, Effec-tive Function of air-conditioning system higher and higher requirement, and the air-conditioning system in correlation technique The control mode and control logic of system, it is impossible to according to the operation characteristic of unit, the air-conditioning system moment is in the shape of Effec-tive Function State, causes the heat transfer efficiency of heat exchanger cannot effectively to play, and then influences the actual motion effect of whole unit, Wu Fashi Existing efficient heat transfer.
The content of the invention
It is contemplated that at least solve one of technical problem existing in the prior art.
A kind of for this reason, the first aspect of the present invention embodiment, there is provided control method of air-conditioning system.
A kind of the second aspect of the present invention embodiment, there is provided control device of air-conditioning system.
A kind of the third aspect of the present invention embodiment, there is provided air conditioner.
In view of this, embodiment, the present invention propose a kind of controlling party of air-conditioning system according to the first aspect of the invention Method, air-conditioning system include outdoor unit, and outdoor unit includes outdoor unit environment temperature sensor, compressor and Compressor Discharge Pressure and passes Sensor, outdoor heat exchanger and outdoor heat exchanger line temperature sensor, outdoor condenser refrigerant pressure sensor, and wind turbine, Control method includes:Detection Compressor Discharge Pressure Pc, outdoor environment temperature Th, condensator outlet refrigerant pressure P or cold in real time Condenser entrance refrigerant pressure, outdoor condensator outlet line temperature Tc;Wind turbine is controlled to run the first preset time with preset gear; According to any one in condensator outlet refrigerant pressure P, condenser inlet refrigerant pressure and Compressor Discharge Pressure, draw current cold The corresponding saturation temperature Tb of matchmaker's pressure, and calculate current refrigerant coefficient n;According to the pre-set interval where refrigerant coefficient n, control The operational taps of wind turbine;Wherein, when preset gear is started shooting for air-conditioning system, original speed position corresponding with outdoor environment temperature Th.
The control method of air-conditioning system proposed by the present invention, after air conditioner startup, with corresponding to outdoor environment temperature Th Preset gear operation the first preset time of wind turbine, and according to condensator outlet refrigerant pressure P, condenser inlet refrigerant pressure with Any one in Compressor Discharge Pressure draws the corresponding saturation temperature Tb of current refrigerant pressure, and then calculates current refrigerant system Number n, so that by the pre-set interval where refrigerant coefficient n, controls the operational taps of wind turbine, and then the gear of wind turbine is carried out certainly It is dynamic to adjust, also, reasonably optimizing control mode is carried out to the gear of wind turbine according to the pre-set interval where refrigerant coefficient n, realize Automatically adjust wind turbine gear, wind turbine be in optimal operating status all the time, thus improve unit heat exchange efficiency and reliably Property, run in a manner of more energy-efficient, improve the heat transfer effect of whole air-conditioning system.
In addition, the control method of the air-conditioning system in above-described embodiment provided by the invention can also have additional skill as follows Art feature:
In the above-mentioned technical solutions, it is preferable that pre-set interval includes:First pre-set interval, the second pre-set interval and the 3rd Pre-set interval;Wherein, the scope of the first pre-set interval is that, more than or equal to a, the scope of the second pre-set interval is small less than or equal to b In a, it more than b, a and b is constant that the scope of the 3rd pre-set interval, which is,.
In the technical scheme, by being set smaller than the scope of the first pre-set interval to be equal to b, more than or equal to a;By The scope of two pre-set intervals is set smaller than a;The scope of 3rd pre-set interval is set greater than b, so that pre-set interval Forgive whole constant range so that no matter the occurrence of refrigerant coefficient n why, can have corresponding corresponding section, into And it ensure that the effect that wind turbine gear is controlled according to refrigerant coefficient n.
In any of the above-described technical solution, it is preferable that according to the pre-set interval where refrigerant coefficient n, control the fortune of wind turbine The step of row gear, specifically include:Judge refrigerant coefficient n whether in the first pre-set interval;When refrigerant coefficient n is default first When in section, the default pressure at expulsion section according to where Compressor Discharge Pressure Pc, controls the gear of wind turbine;When refrigerant coefficient When n is not in the first pre-set interval, the gear of pre-set interval adjustment wind turbine according to where refrigerant coefficient n, so that refrigerant coefficient n In the first pre-set interval.
When in the technical scheme, by judging that refrigerant coefficient n is in the first pre-set interval, according to Compressor Discharge Pressure Default pressure at expulsion section where Pc, controls the gear of wind turbine;When judging refrigerant coefficient n not in the first pre-set interval, According to the gear of pre-set interval adjustment wind turbine where refrigerant coefficient n, so that refrigerant coefficient n is in the first pre-set interval, so that So that wind turbine remains at optimal gear.
In any of the above-described technical solution, it is preferable that default pressure at expulsion section includes, the first default pressure at expulsion area Between, the second default pressure at expulsion section and the 3rd default pressure at expulsion section;Wherein, the value in the first default pressure at expulsion section Scope is less than A, more than B;The value range in the second default pressure at expulsion section is less than or equal to B;3rd default pressure at expulsion Section is more than or equal to A.
In the technical scheme, by the way that the value range in the first default pressure at expulsion section is set smaller than A, more than B; The value range in the second default pressure at expulsion section is set smaller than being equal to B;3rd default pressure at expulsion section is arranged to More than or equal to A so that pre-set interval forgives whole constant range so that no matter Compressor Discharge Pressure Pc it is specific Why is value, can have corresponding corresponding section, and then ensure that the effect that wind turbine gear is controlled according to Compressor Discharge Pressure Pc Fruit.
In any of the above-described technical solution, it is preferable that when refrigerant coefficient n is in the first pre-set interval, according to compressor Default pressure at expulsion section where pressure at expulsion Pc, the step of controlling the gear of wind turbine, specifically includes:According to the first default frequency Rate obtains Compressor Discharge Pressure Pc;Determine the default pressure at expulsion section where Compressor Discharge Pressure Pc;When compressor is arranged Atmospheric pressure Pc keeps the wind shelves of wind turbine constant at the first default pressure at expulsion section;When Compressor Discharge Pressure Pc is second During default pressure at expulsion section, reduce the gear of wind turbine, to lowest gear;When Compressor Discharge Pressure Pc is in the 3rd default exhaust During pressure range, increase the gear of wind turbine, to highest gear.
In the technical scheme, by obtaining current compressor pressure at expulsion Pc, Compressor Discharge Pressure Pc places are determined Default pressure at expulsion section, wherein, when Compressor Discharge Pressure Pc is in the first default pressure at expulsion section, i.e. current compression Machine pressure at expulsion Pc is less than A, during more than B, keeps the gear of wind turbine constant;When Compressor Discharge Pressure Pc is in the second default exhaust During pressure range, i.e. when current compressor pressure at expulsion Pc is less than or equal to B, reduce the gear of wind turbine, through one or many operations Afterwards, until the gear of wind turbine is preferably minimized;When Compressor Discharge Pressure Pc is in the 3rd default pressure at expulsion section, i.e., current pressure When contracting machine pressure at expulsion Pc is more than or equal to A, increase the gear of wind turbine, after one or many operations, until the gear liter of wind turbine To highest, and then the rationalization control to wind turbine gear is realized, when ensure that air-conditioning system operation, wind turbine is all the time in optimal State.
In any of the above-described technical solution, it is preferable that when refrigerant coefficient n is not in the first pre-set interval, according to refrigerant The gear of pre-set interval adjustment wind turbine where coefficient n, so that steps of the refrigerant coefficient n in the first pre-set interval, specific bag Include:Judge refrigerant coefficient n whether in the second pre-set interval;When refrigerant coefficient n is in the second pre-set interval, determine whether The current gear of wind turbine whether be wind turbine lowest gear;When current gear is lowest gear, according to Compressor Discharge Pressure Default pressure at expulsion section where Pc, controls the gear of wind turbine;It is default according to second when current gear is not lowest gear Frequency reduces the gear of wind turbine, so that refrigerant coefficient n is in the first pre-set interval.
In the technical scheme, when judging that refrigerant coefficient n is in the second pre-set interval, the current of wind turbine is determined whether Gear whether be wind turbine lowest gear, if current gear is lowest gear, according to where Compressor Discharge Pressure Pc Default pressure at expulsion section, controls the gear of wind turbine, if current gear is not lowest gear, dropped with the second predeterminated frequency The gear of low wind turbine, so that the gear of wind turbine is reduced, after one or many operations, until refrigerant coefficient n is in the first preset areas In, and then realize the automated control to wind turbine gear.
In any of the above-described technical solution, it is preferable that when refrigerant coefficient n is not in the second pre-set interval, further sentence Whether disconnected refrigerant coefficient n is in the 3rd pre-set interval;When refrigerant coefficient n is in the 3rd pre-set interval, wind turbine is determined whether Current gear whether be wind turbine highest gear;When current gear is highest gear, according to Compressor Discharge Pressure Pc institutes Default pressure at expulsion section, control the gear of wind turbine;When current gear is not highest gear, according to the 3rd predeterminated frequency Increase the gear of wind turbine, so that refrigerant coefficient n is in the first pre-set interval.
In the technical scheme, when judging that refrigerant coefficient n is in the 3rd pre-set interval, the current of wind turbine is determined whether Gear whether be wind turbine highest gear, if current gear is highest gear, according to where Compressor Discharge Pressure Pc Default pressure at expulsion section, is controlled the gear of wind turbine, if current gear is not highest gear, is carried with the 3rd predeterminated frequency The gear of wind turbine is risen, so that the gear of wind turbine is lifted, after one or many operations, until refrigerant coefficient n is in the first preset areas In, and then realize the automated control to wind turbine gear.
In any of the above-described technical solution, it is preferable that the step of calculating refrigerant coefficient n, specifically includes:According to formula:N= (Tb-Tc)/(Tb-Th), calculates the refrigerant coefficient n.
In the technical scheme, formula is passed through:N=(Tb-Tc)/(Tb-Th), calculates refrigerant coefficient n, so as to obtain cold Matchmaker coefficient n, is controlled with the operational taps to wind turbine.
Embodiment according to the second aspect of the invention, the present invention propose a kind of control device of air-conditioning system, air-conditioning system System includes outdoor unit, and outdoor unit includes outdoor unit environment temperature sensor, compressor and compressor discharge pressure sensor, outdoor Heat exchanger and outdoor heat exchanger line temperature sensor, outdoor condenser refrigerant pressure sensor, and wind turbine, including:Detection Unit, for detecting Compressor Discharge Pressure Pc, outdoor environment temperature Th, condensator outlet refrigerant pressure P or condenser in real time Entrance refrigerant pressure, outdoor condensator outlet line temperature Tc;First control unit, for controlling wind turbine to be run with preset gear First preset time;First computing unit, for showing that current refrigerant pressure is corresponding full according to condensator outlet refrigerant pressure P And temperature;Second computing unit, for calculating current refrigerant coefficient n;Second control unit, when fan operation first is preset Between after, according to the pre-set interval where refrigerant coefficient n, control the operational taps of wind turbine;Wherein, preset gear is opened for air-conditioning system During machine, original speed position corresponding with outdoor environment temperature Th.
The control device of air-conditioning system proposed by the present invention, after air conditioner startup, with corresponding to outdoor environment temperature Th Preset gear operation the first preset time of wind turbine, and show that current refrigerant pressure corresponds to according to condensator outlet refrigerant pressure P Saturation temperature, and then calculate current refrigerant coefficient n, so as to pass through the pre-set interval where refrigerant coefficient n, control wind turbine Operational taps, and then automatically adjust to the gear of wind turbine, also, according to the pre-set interval where refrigerant coefficient n to wind The gear of machine carries out reasonably optimizing control mode, realizes the gear of automatic adjustment wind turbine, wind turbine is in optimal operation all the time State, so as to improve the heat exchange efficiency and reliability of unit, is run in a manner of more energy-efficient, improves whole air-conditioning system Heat transfer effect.
In the above-mentioned technical solutions, it is preferable that pre-set interval includes:First pre-set interval, the second pre-set interval and the 3rd Pre-set interval;Wherein, the scope of the first pre-set interval is that, more than or equal to a, the scope of the second pre-set interval is small less than or equal to b In a, it more than b, a and b is constant that the scope of the 3rd pre-set interval, which is,.
In the technical scheme, by being set smaller than the scope of the first pre-set interval to be equal to b, more than or equal to a;By The scope of two pre-set intervals is set smaller than a;The scope of 3rd pre-set interval is set greater than b, so that pre-set interval Forgive whole constant range so that no matter the occurrence of refrigerant coefficient n why, can have corresponding corresponding section, into And it ensure that the effect that wind turbine gear is controlled according to refrigerant coefficient n.
In any of the above-described technical solution, it is preferable that further include:First judging unit, for whether judging refrigerant coefficient n In the first pre-set interval;3rd control unit, for judging refrigerant coefficient n in the first pre-set interval when the first judging unit When, the default pressure at expulsion section according to where Compressor Discharge Pressure Pc, controls the gear of wind turbine;When the first judging unit is sentenced When disconnected refrigerant coefficient n is not in the first pre-set interval, the gear of pre-set interval adjustment wind turbine according to where refrigerant coefficient n, so that Refrigerant coefficient n is obtained in the first pre-set interval.
When in the technical scheme, by judging that refrigerant coefficient n is in the first pre-set interval, according to Compressor Discharge Pressure Default pressure at expulsion section where Pc, controls the gear of wind turbine;When judging refrigerant coefficient n not in the first pre-set interval, According to the gear of pre-set interval adjustment wind turbine where refrigerant coefficient n, so that refrigerant coefficient n is in the first pre-set interval, so that So that wind turbine remains at optimal gear.
In any of the above-described technical solution, it is preferable that default pressure at expulsion section includes, the first default pressure at expulsion area Between, the second default pressure at expulsion section and the 3rd default pressure at expulsion section;Wherein, the value in the first default pressure at expulsion section Scope is less than A, more than B;The value range in the second default pressure at expulsion section is less than or equal to B;3rd default pressure at expulsion Section is more than or equal to A.
In the technical scheme, by the way that the value range in the first default pressure at expulsion section is set smaller than A, more than B; The value range in the second default pressure at expulsion section is set smaller than being equal to B;3rd default pressure at expulsion section is arranged to More than or equal to A so that pre-set interval forgives whole constant range so that no matter Compressor Discharge Pressure Pc it is specific Why is value, can have corresponding corresponding section, and then ensure that the effect that wind turbine gear is controlled according to Compressor Discharge Pressure Pc Fruit.
In any of the above-described technical solution, it is preferable that further include:Acquiring unit, for being obtained according to the first predeterminated frequency Compressor Discharge Pressure Pc;Second judging unit, judges the default pressure at expulsion section where Compressor Discharge Pressure Pc;4th Control unit, for when the second judging unit judges Compressor Discharge Pressure Pc in the first default pressure at expulsion section, keeping The wind shelves of wind turbine are constant;When the second judging unit judges Compressor Discharge Pressure Pc in the second default pressure at expulsion section, subtract The gear of small wind turbine, to lowest gear;When the second judging unit judges Compressor Discharge Pressure Pc in the 3rd default pressure at expulsion During section, increase the gear of wind turbine, to highest gear.
In the technical scheme, by obtaining current compressor pressure at expulsion Pc, Compressor Discharge Pressure Pc places are determined Default pressure at expulsion section, wherein, when Compressor Discharge Pressure Pc is in the first default pressure at expulsion section, i.e. current compression Machine pressure at expulsion Pc is less than A, during more than B, keeps the gear of wind turbine constant;When Compressor Discharge Pressure Pc is in the second default exhaust During pressure range, i.e. when current compressor pressure at expulsion Pc is less than or equal to B, reduce the gear of wind turbine, through one or many operations Afterwards, until the gear of wind turbine is preferably minimized;When Compressor Discharge Pressure Pc is in the 3rd default pressure at expulsion section, i.e., current pressure When contracting machine pressure at expulsion Pc is more than or equal to A, increase the gear of wind turbine, after one or many operations, until the gear liter of wind turbine To highest, and then the rationalization control to wind turbine gear is realized, when ensure that air-conditioning system operation, wind turbine is all the time in optimal State.
In any of the above-described technical solution, it is preferable that further include:3rd judging unit, for whether judging refrigerant coefficient n In the second pre-set interval;4th judging unit, for judging refrigerant coefficient n in the second pre-set interval when the 3rd judging unit When, determine whether wind turbine current gear whether be wind turbine lowest gear;5th control unit, for when the 4th judgement list Member is when to judge current gear be lowest gear, the default pressure at expulsion section according to where Compressor Discharge Pressure Pc, control wind The gear of machine;When it is not lowest gear that the 4th judging unit, which judges current gear, reduce wind turbine according to the second predeterminated frequency Gear, so that refrigerant coefficient n is in the first pre-set interval.
In the technical scheme, when judging that refrigerant coefficient n is in the second pre-set interval, the current of wind turbine is determined whether Gear whether be wind turbine lowest gear, if current gear is lowest gear, according to where Compressor Discharge Pressure Pc Default pressure at expulsion section, controls the gear of wind turbine, if current gear is not lowest gear, dropped with the second predeterminated frequency The gear of low wind turbine, so that the gear of wind turbine is reduced, after one or many operations, until refrigerant coefficient n is in the first preset areas In, and then realize the automated control to wind turbine gear.
In any of the above-described technical solution, it is preferable that further include:5th judging unit, for sentencing when the 3rd judging unit When disconnected refrigerant coefficient n is not in the second pre-set interval, determine whether refrigerant coefficient n whether in the 3rd pre-set interval;6th Judging unit, for when the 5th judging unit judges that refrigerant coefficient n is in the 3rd pre-set interval, determining whether working as wind turbine Preceding gear whether be wind turbine highest gear;6th control unit, for judging that current gear is highest when the 6th judging unit During gear, the default pressure at expulsion section according to where Compressor Discharge Pressure Pc, controls the gear of wind turbine;When the 6th judgement is single Member increases the gear of wind turbine according to the 3rd predeterminated frequency, so that refrigerant coefficient n exists when to judge current gear be not highest gear In first pre-set interval.
In the technical scheme, when judging that refrigerant coefficient n is in the 3rd pre-set interval, the current of wind turbine is determined whether Gear whether be wind turbine highest gear, if current gear is highest gear, according to where Compressor Discharge Pressure Pc Default pressure at expulsion section, is controlled the gear of wind turbine, if current gear is not highest gear, is carried with the 3rd predeterminated frequency The gear of wind turbine is risen, so that the gear of wind turbine is lifted, after one or many operations, until refrigerant coefficient n is in the first preset areas In, and then realize the automated control to wind turbine gear.
In any of the above-described technical solution, it is preferable that the second computing unit, the refrigerant coefficient n for calculating current are specific Including:According to formula:N=(Tb-Tc)/(Tb-Th), calculates the refrigerant coefficient n.
In the technical scheme, formula is passed through:N=(Tb-Tc)/(Tb-Th), calculates refrigerant coefficient n, so as to obtain cold Matchmaker coefficient n, is controlled with the operational taps to wind turbine.
Embodiment according to the third aspect of the invention we, a kind of air conditioner proposed by the present invention, including:Such as above-mentioned technical proposal Any one of air-conditioning system control device.
Air conditioner proposed by the present invention, because of the control dress including the air-conditioning system as any one of above-mentioned technical proposal Put, therefore, whole beneficial effects of the control device with the air-conditioning system as any one of above-mentioned technical proposal, This is no longer stated one by one.
The additional aspect and advantage of the present invention will become obvious in following description section, or the practice by the present invention Recognize.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment Substantially and it is readily appreciated that, wherein:
Fig. 1 shows the flow chart of the control method of air-conditioning system provided by one embodiment of the present invention;
Fig. 2 shows the flow chart of the control method for the air-conditioning system that another embodiment of the present invention provides;
Fig. 3 shows the flow chart of the control method for the air-conditioning system that another embodiment of the present invention provides;
Fig. 4 shows the schematic block diagram of the control device of air-conditioning system provided by one embodiment of the present invention;
Fig. 5 shows the schematic block diagram of the control device for the air-conditioning system that another embodiment of the present invention provides;
Fig. 6 shows the schematic block diagram of the control device for the air-conditioning system that another embodiment of the present invention provides.
Embodiment
It is to better understand the objects, features and advantages of the present invention, below in conjunction with the accompanying drawings and specific real Mode is applied the present invention is further described in detail.It should be noted that in the case where there is no conflict, the implementation of the application Feature in example and embodiment can be mutually combined.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also To be implemented using other different from other modes described here, therefore, protection scope of the present invention and from described below Specific embodiment limitation.
Hoistable platform component 10 described according to some embodiments of the invention and dish-washing machine 1 are described referring to Fig. 1 to Fig. 4.
Referring to Fig. 1 to Fig. 6 describe the throttling control method of described according to some embodiments of the invention air-conditioning system with The throttle control device of air-conditioning system.
Fig. 1 shows the flow chart of the control method of air-conditioning system provided by one embodiment of the present invention.
As shown in Figure 1, the control method of air-conditioning system provided by one embodiment of the present invention includes:
Step 102:In real time detection Compressor Discharge Pressure Pc, outdoor environment temperature Th, condensator outlet refrigerant pressure P or Condenser inlet refrigerant pressure, outdoor condensator outlet line temperature Tc;
Step 104:Wind turbine is controlled to run the first preset time with original speed position corresponding with outdoor environment temperature Th;
Step 106:According in condensator outlet refrigerant pressure P, condenser inlet refrigerant pressure and Compressor Discharge Pressure Any one draws the corresponding saturation temperature Tb of current refrigerant pressure, and calculates current refrigerant coefficient n;
Step 108:According to the pre-set interval where refrigerant coefficient n, the operational taps of wind turbine are controlled.
The control method of air-conditioning system provided by the invention, after air conditioner startup, with corresponding to outdoor environment temperature Th Preset gear operation the first preset time of wind turbine, and according to condensator outlet refrigerant pressure P, condenser inlet refrigerant pressure with Any one in Compressor Discharge Pressure Pc three draws the corresponding saturation temperature Tb of current refrigerant pressure, and then calculates current Refrigerant coefficient n, so that by the pre-set interval where refrigerant coefficient n, controls the operational taps of wind turbine, and then to the gear of wind turbine Automatically adjust, also, reasonably optimizing controlling party is carried out to the gear of wind turbine according to the pre-set interval where refrigerant coefficient n Formula, realizes the gear of automatic adjustment wind turbine, wind turbine is in optimal operating status all the time, so as to improve the heat exchange efficiency of unit And reliability, run in a manner of more energy-efficient, improve the heat transfer effect of whole air-conditioning system.
Fig. 2 shows the flow chart of the control method for the air-conditioning system that another embodiment of the present invention provides.
As shown in Fig. 2, the control method for the air-conditioning system that another embodiment of the present invention provides includes:
Step 202:In real time detection Compressor Discharge Pressure Pc, outdoor environment temperature Th, condensator outlet refrigerant pressure P or Condenser inlet refrigerant pressure, outdoor condensator outlet line temperature Tc;
Step 204:Wind turbine is controlled to run the first preset time with original speed position corresponding with outdoor environment temperature Th;
Step 206:According to condensator outlet refrigerant pressure P, condenser inlet refrigerant pressure and Compressor Discharge Pressure Pc In any one draw the corresponding saturation temperature Tb of current refrigerant pressure, and calculate current refrigerant coefficient n;
Step 208:Refrigerant coefficient n is judged whether in the first pre-set interval, when judging result is to be, performs step 210, when judging result is no, perform step 220;
Step 210:Refrigerant coefficient n is judged whether in the second pre-set interval, when judging result is to be, performs step 212, when judging result is no, perform step 216;
Step 212:Judge wind turbine current gear whether be wind turbine lowest gear, when judging result for be when, perform Step 220, when judging result is no, step 214 is performed;
Step 214:Reduce the gear of wind turbine according to the second predeterminated frequency, re-execute step 208;
Step 216:Judge wind turbine current gear whether be wind turbine highest gear, when judging result for be when, perform Step 220, when judging result is no, step 218 is performed;
Step 218:According to the gear of the 3rd predeterminated frequency increase wind turbine, step 208 is re-executed;
Step 220:Default pressure at expulsion section according to where Compressor Discharge Pressure Pc, controls the gear of wind turbine.
The control method of air-conditioning system provided by the invention, after air conditioner startup, with corresponding to outdoor environment temperature Th Preset gear operation the first preset time of wind turbine, and according to condensator outlet refrigerant pressure P, condenser inlet refrigerant pressure with Any one in Compressor Discharge Pressure three draws the corresponding saturation temperature of current refrigerant pressure, and then calculates current refrigerant Coefficient n, when refrigerant coefficient n is in the first pre-set interval, the default pressure at expulsion area according to where Compressor Discharge Pressure Pc Between, control the gear of wind turbine;When judging that refrigerant coefficient n is in the second pre-set interval, the current gear of wind turbine is determined whether Whether be wind turbine lowest gear, it is default according to where Compressor Discharge Pressure Pc if current gear is lowest gear Pressure at expulsion section, controls the gear of wind turbine, if current gear is not lowest gear, wind is reduced with the second predeterminated frequency The gear of machine, so that the gear of wind turbine is reduced, after one or many operations, until refrigerant coefficient n is in the first pre-set interval; When judging that refrigerant coefficient n is in the 3rd pre-set interval, whether the current gear for determining whether wind turbine is the most high-grade of wind turbine Position, if current gear is highest gear, the default pressure at expulsion section according to where Compressor Discharge Pressure Pc, controls wind The gear of machine, if current gear is not highest gear, with the gear of the 3rd predeterminated frequency lifting wind turbine, so as to lift wind The gear of machine, after one or many operations, until refrigerant coefficient n in the first pre-set interval, realizes automatic adjustment wind turbine Gear, makes wind turbine be in optimal operating status all the time, so that the heat exchange efficiency and reliability of unit are improved, more efficiently to save The mode of energy is run, and improves the heat transfer effect of whole air-conditioning system.
Fig. 3 shows the flow chart of the control method for the air-conditioning system that another embodiment of the present invention provides.
As shown in figure 3, the control method for the air-conditioning system that another embodiment of the present invention provides includes:
Step 302:In real time detection Compressor Discharge Pressure Pc, outdoor environment temperature Th, condensator outlet refrigerant pressure P or Condenser inlet refrigerant pressure, outdoor condensator outlet line temperature Tc;
Step 304:Wind turbine is controlled to run the first preset time with original speed position corresponding with outdoor environment temperature Th;
Step 306:According to condensator outlet refrigerant pressure P, condenser inlet refrigerant pressure and Compressor Discharge Pressure Pc In any one draw the corresponding saturation temperature Tb of current refrigerant pressure, and according to formula:N=(Tb-Tc)/(Tb-Th), calculates and works as Preceding refrigerant coefficient n;
Step 308:Refrigerant coefficient n is judged whether in the first pre-set interval, when judging result is to be, performs step 320, when judging result is no, perform step 310;
Step 310:Refrigerant coefficient n is judged whether in the second pre-set interval, when judging result is to be, performs step 312, when judging result is no, perform step 316;
Step 312:Judge wind turbine current gear whether be wind turbine lowest gear, when judging result for be when, perform Step 320, when judging result is no, step 314 is performed;
Step 314:Reduce the gear of wind turbine according to the second predeterminated frequency, re-execute step 308;
Step 316:Judge wind turbine current gear whether be wind turbine highest gear, when judging result for be when, perform Step 320, when judging result is no, step 318 is performed;
Step 318:According to the gear of the 3rd predeterminated frequency increase wind turbine;
Step 320:Obtain Compressor Discharge Pressure Pc;
Step 322:Determine the default pressure at expulsion section where the Compressor Discharge Pressure Pc;
Step 324:Compressor Discharge Pressure Pc is in the second default pressure at expulsion section;
Step 326:Reduce the gear of wind turbine, until lowest gear;
Step 328:Compressor Discharge Pressure Pc is in the first default pressure at expulsion section;
Step 330:Keep the wind shelves of wind turbine constant;
Step 332:Compressor Discharge Pressure Pc is in the 3rd default pressure at expulsion section;
Step 334:Increase the gear of wind turbine, until highest gear.
The control method of air-conditioning system provided by the invention, after air conditioner startup, with corresponding to outdoor environment temperature Th Preset gear operation the first preset time of wind turbine, and according to condensator outlet refrigerant pressure P, condenser inlet refrigerant pressure with Any one in Compressor Discharge Pressure Pc three draws the corresponding saturation temperature of current refrigerant pressure, and according to formula:N=(Tb- Tc)/(Tb-Th), calculates the refrigerant coefficient n, when refrigerant coefficient n is in the first pre-set interval, obtains current compressor Pressure at expulsion Pc, determines the default pressure at expulsion section where Compressor Discharge Pressure Pc, wherein, as Compressor Discharge Pressure Pc At the first default pressure at expulsion section, i.e. current compressor pressure at expulsion Pc is less than or equal to A, during more than or equal to B, holding wind turbine Gear it is constant;When Compressor Discharge Pressure Pc is in the second default pressure at expulsion section, i.e. current compressor pressure at expulsion Pc During less than B, reduce the gear of wind turbine, after one or many operations, until the gear of wind turbine is preferably minimized;Work as compressor air-discharging Pressure Pc when i.e. current compressor pressure at expulsion Pc is more than A, increases the gear of wind turbine at the 3rd default pressure at expulsion section, After one or many operations, until the gear of wind turbine is raised to highest;When judging that refrigerant coefficient n is in the second pre-set interval, Determine whether wind turbine current gear whether be wind turbine lowest gear, if current gear is lowest gear, according to pressure Default pressure at expulsion section where contracting machine pressure at expulsion Pc, controls the gear of wind turbine, if current gear is not lowest gear When, then the gear of wind turbine is reduced with the second predeterminated frequency, so that the gear of wind turbine is reduced, after one or many operations, until Refrigerant coefficient n is in the first pre-set interval;When judging that refrigerant coefficient n is in the 3rd pre-set interval, wind turbine is determined whether Current gear whether be wind turbine highest gear, if current gear is highest gear, according to Compressor Discharge Pressure Pc institutes Default pressure at expulsion section, the gear of wind turbine is controlled, if current gear is not highest gear, with the 3rd default frequency Rate lifts the gear of wind turbine, so that the gear of wind turbine is lifted, after one or many operations, until refrigerant coefficient n pre- first If in section, realize the gear of automatic adjustment wind turbine, wind turbine is in optimal operating status all the time, so as to improve changing for unit The thermal efficiency and reliability, are run in a manner of more energy-efficient, improve the heat transfer effect of whole air-conditioning system.
In a particular embodiment, pre-set interval includes:First pre-set interval, the second pre-set interval and the 3rd pre-set interval; Wherein, the scope of the first pre-set interval is that, more than or equal to a, the scope of the second pre-set interval is pre- less than a, the 3rd less than or equal to b It more than b, a and b is constant that if the scope in section, which is,.Such as:A=0.1;B=2, i.e. the first pre-set interval are [0.1,2], second Pre-set interval is for more than 2 less than 0.1, the 3rd pre-set interval.
In a particular embodiment, after air conditioner unit receives power-on command, unit start, wind turbine is according to outdoor ring Temperature Th corresponding initial wind shelves in border run some seconds, and detect Compressor Discharge Pressure Pc, outdoor environment temperature Th in real time, cold Condenser outlet refrigerant pressure P, outdoor condensator outlet line temperature Tc.Drawn according to condensator outlet refrigerant pressure P current cold The corresponding saturation temperature of matchmaker's pressure, and according to formula:N=(Tb-Tc)/(Tb-Th), calculates the refrigerant coefficient n.
Further, judge whether refrigerant coefficient n=[a, b] sets up, if so, then wind turbine enters Compressor Discharge Pressure Pc control logics.If Pc >=A, the current gear for controlling wind turbine adds 1 grade, until wind shelves increase to most strong wind shelves, then no longer increases Greatly;If Pc≤B, the current gear for controlling wind turbine subtracts 1 grade, until wind shelves are reduced to 0, then no longer reduces;If B < Pc < A, Wind shelves carry out keeping current wind shelves not adjust.First compression machine pressure at expulsion Pc was detected every some seconds, carries out repeating judgement.
If refrigerant coefficient n=[a, b] is invalid, then determine whether n < a set up, if so, then determine whether Whether current wind shelves are minimum wind shelves, if minimum wind shelves, then go successively to Compressor Discharge Pressure Pc control logics and adjust wind Shelves, if not minimum wind shelves, then currently the gear of control wind turbine subtracts 1 grade, and is once judged every some minutes.
If refrigerant coefficient n < a are invalid, determine whether n > b set up, if so, determine whether current wind Whether shelves are most strong wind shelves, if most strong wind shelves, then go successively to Compressor Discharge Pressure Pc control logics and adjust wind shelves, if not It is most strong wind shelves, then currently the gear of control wind turbine adds 1 grade, and is once judged every some minutes.
Herein it should be noted that since refrigerant coefficient n and the first pre-set interval, the second pre-set interval and the 3rd are default Section enumerates the situation included by whole refrigerant coefficient n, therefore, when judging refrigerant coefficient n not in the second pre-set interval, then Illustrate refrigerant coefficient n in the 3rd pre-set interval, be i.e. achievable to wind can not carry out further judging to refrigerant coefficient n The control of machine gear;Correspondingly, when judging refrigerant coefficient n not in three pre-set intervals, then illustrate that refrigerant coefficient n is pre- second If section, meanwhile, the mode of control wind turbine gear is to control the rotating speed of wind turbine.
As shown in figure 4, embodiment, the present invention propose a kind of control dress of air-conditioning system according to the second aspect of the invention 400 are put, air-conditioning system includes outdoor unit, and outdoor unit includes outdoor unit environment temperature sensor, compressor and compressor air-discharging pressure Force snesor, outdoor heat exchanger and outdoor heat exchanger line temperature sensor, outdoor condenser refrigerant pressure sensor, Yi Jifeng Machine, including:Detection unit 402, for detecting Compressor Discharge Pressure Pc, outdoor environment temperature Th in real time, condensator outlet is cold Matchmaker's pressure P, condenser inlet refrigerant pressure and any one in the Compressor Discharge Pressure, outdoor condensator outlet line temperature Tc;First control unit 404, for controlling wind turbine to run the first preset time with preset gear;First computing unit 406, is used Drawn according to condensator outlet refrigerant pressure P, condenser inlet refrigerant pressure and any one in the Compressor Discharge Pressure The corresponding saturation temperature Tb of current refrigerant pressure;Second computing unit 408, for calculating current refrigerant coefficient n;Second control Unit 410, after the first preset time of fan operation, according to the pre-set interval where refrigerant coefficient n, controls the operation shelves of wind turbine Position;Wherein, when preset gear is started shooting for air-conditioning system, original speed position corresponding with outdoor environment temperature Th.
The control device of air-conditioning system proposed by the present invention, after air conditioner startup, with corresponding to outdoor environment temperature Th Preset gear operation the first preset time of wind turbine, and according to condensator outlet refrigerant pressure P, condenser inlet refrigerant pressure with Any one in the Compressor Discharge Pressure three draws the corresponding saturation temperature of current refrigerant pressure, and then calculates current Refrigerant coefficient n, so that by the pre-set interval where refrigerant coefficient n, controls the operational taps of wind turbine, and then to the gear of wind turbine Automatically adjust, also, reasonably optimizing controlling party is carried out to the gear of wind turbine according to the pre-set interval where refrigerant coefficient n Formula, realizes the gear of automatic adjustment wind turbine, wind turbine is in optimal operating status all the time, so as to improve the heat exchange efficiency of unit And reliability, run in a manner of more energy-efficient, improve the heat transfer effect of whole air-conditioning system.
As shown in figure 5, according to another embodiment of the invention, the present invention proposes a kind of control dress of air-conditioning system 500 are put, air-conditioning system includes outdoor unit, and outdoor unit includes outdoor unit environment temperature sensor, compressor and compressor air-discharging pressure Force snesor, outdoor heat exchanger and outdoor heat exchanger line temperature sensor, outdoor condenser refrigerant pressure sensor, Yi Jifeng Machine, including:Detection unit 502, for detecting Compressor Discharge Pressure Pc, outdoor environment temperature Th in real time, condensator outlet is cold Matchmaker's pressure P, condenser inlet refrigerant pressure and any one in the Compressor Discharge Pressure, outdoor condensator outlet line temperature Tc;First control unit 504, for controlling wind turbine to run the first preset time with preset gear;First computing unit 506, is used Drawn according to condensator outlet refrigerant pressure P, condenser inlet refrigerant pressure and any one in the Compressor Discharge Pressure The corresponding saturation temperature Tb of current refrigerant pressure;Second computing unit 508, for calculating current refrigerant coefficient n;Second control Unit 510, after the first preset time of fan operation, according to the pre-set interval where refrigerant coefficient n, controls the operation shelves of wind turbine Position;Wherein, when preset gear is started shooting for air-conditioning system, original speed position corresponding with outdoor environment temperature Th;First judging unit 512, for judging refrigerant coefficient n whether in the first pre-set interval;3rd control unit 514, for when the first judging unit 512 when judging that refrigerant coefficient n is in the first pre-set interval, the default pressure at expulsion area according to where Compressor Discharge Pressure Pc Between, control the gear of wind turbine;When the first judging unit 512 judges refrigerant coefficient n not in the first pre-set interval, according to refrigerant The gear of pre-set interval adjustment wind turbine where coefficient n, so that refrigerant coefficient n is in the first pre-set interval;3rd judging unit 516, for judging refrigerant coefficient n whether in the second pre-set interval;4th judging unit 518, for when the 3rd judging unit 516 when judging that refrigerant coefficient n is in the second pre-set interval, determine whether wind turbine current gear whether be wind turbine deep low gear Position;5th control unit 520, for when it is lowest gear that the 4th judging unit, which judges 518 current gears, being arranged according to compressor Default pressure at expulsion section where atmospheric pressure Pc, controls the gear of wind turbine;When the 4th judging unit 518 judges current gear not When being lowest gear, reduce the gear of wind turbine according to the second predeterminated frequency, so that refrigerant coefficient n is in the first pre-set interval; 5th judging unit 522, for when the 3rd judging unit 516 judges refrigerant coefficient n not in the second pre-set interval, further Judge refrigerant coefficient n whether in the 3rd pre-set interval;6th judging unit 524, for when the 5th judging unit 522 judge it is cold When matchmaker's coefficient n is in the 3rd pre-set interval, determine whether wind turbine current gear whether be wind turbine highest gear;6th control Unit 526 processed, for when it is highest gear that the 5th judging unit 522, which judges current gear, according to Compressor Discharge Pressure Pc The default pressure at expulsion section at place, controls the gear of wind turbine;When the 6th judging unit judges that 524 current gears are not most high-grade During position, according to the gear of the 3rd predeterminated frequency increase wind turbine, so that refrigerant coefficient n is in the first pre-set interval.
As shown in fig. 6, according to another embodiment of the invention, the present invention proposes a kind of control dress of air-conditioning system 600 are put, air-conditioning system includes outdoor unit, and outdoor unit includes outdoor unit environment temperature sensor, compressor and compressor air-discharging pressure Force snesor, outdoor heat exchanger and outdoor heat exchanger line temperature sensor, outdoor condenser refrigerant pressure sensor, Yi Jifeng Machine, including:Detection unit 602, for detecting Compressor Discharge Pressure Pc, outdoor environment temperature Th in real time, condensator outlet is cold Matchmaker's pressure P, condenser inlet refrigerant pressure and any one in the Compressor Discharge Pressure three, outdoor condensator outlet pipeline Temperature Tc;First control unit 604, for controlling wind turbine to run the first preset time with preset gear;First computing unit 606, for according to condensator outlet refrigerant pressure P, condenser inlet refrigerant pressure with it is any in the Compressor Discharge Pressure Person draws the corresponding saturation temperature Tb of current refrigerant pressure;Second computing unit 608, for calculating current refrigerant coefficient n;The Two control units 610, after the first preset time of fan operation, according to the pre-set interval where refrigerant coefficient n, control wind turbine Operational taps;Wherein, when preset gear is started shooting for air-conditioning system, original speed position corresponding with outdoor environment temperature Th;First sentences Disconnected unit 612, for judging refrigerant coefficient n whether in the first pre-set interval;3rd control unit 614, sentences for working as first When disconnected unit 612 judges that refrigerant coefficient n is in the first pre-set interval, the default exhaust pressure according to where Compressor Discharge Pressure Pc Power section, controls the gear of wind turbine;When the first judging unit 612 judges refrigerant coefficient n not in the first pre-set interval, according to The gear of pre-set interval adjustment wind turbine where refrigerant coefficient n, so that refrigerant coefficient n is in the first pre-set interval;3rd judges Unit 616, for judging refrigerant coefficient n whether in the second pre-set interval;4th judging unit 618, for when the 3rd judgement When unit 616 judges that refrigerant coefficient n is in the second pre-set interval, determine whether wind turbine current gear whether be wind turbine most Low-grade location;5th control unit 620, for when it is lowest gear that the 4th judging unit 618, which judges current gear, according to compression Default pressure at expulsion section where machine pressure at expulsion Pc, controls the gear of wind turbine;When the 4th judging unit 618 judges current shelves When position is not lowest gear, reduce the gear of wind turbine according to the second predeterminated frequency, so that refrigerant coefficient n is in the first pre-set interval It is interior;5th judging unit 622, for when the 3rd judging unit 616 judges refrigerant coefficient n not in the second pre-set interval, into Whether one step judges refrigerant coefficient n in the 3rd pre-set interval;6th judging unit 624, for sentencing when the 5th judging unit 622 When disconnected refrigerant coefficient n is in the 3rd pre-set interval, determine whether wind turbine current gear whether be wind turbine highest gear;The Six control units 626, for when it is highest gear that the 5th judging unit 622, which judges current gear, according to compressor air-discharging pressure Default pressure at expulsion section where power Pc, controls the gear of wind turbine;When the 6th judging unit 626 judges that current gear is not most During high tap position, according to the gear of the 3rd predeterminated frequency increase wind turbine, so that refrigerant coefficient n is in the first pre-set interval;Obtain Unit 628, for obtaining Compressor Discharge Pressure Pc according to the first predeterminated frequency;Second judging unit 630, judges that compressor is arranged Default pressure at expulsion section where atmospheric pressure Pc;4th control unit 632, for judging compression when the second judging unit 630 Machine pressure at expulsion Pc keeps the wind shelves of wind turbine constant at the first default pressure at expulsion section;When the second judging unit 630 judges Compressor Discharge Pressure Pc reduces the gear of wind turbine, to lowest gear at the second default pressure at expulsion section;When the second judgement Unit 630 judges that Compressor Discharge Pressure Pc at the 3rd default pressure at expulsion section, increases the gear of wind turbine, to most high-grade Position.
In a particular embodiment, pre-set interval includes:First pre-set interval, the second pre-set interval and the 3rd pre-set interval; Wherein, the scope of the first pre-set interval is that, more than or equal to a, the scope of the second pre-set interval is pre- less than a, the 3rd less than or equal to b It more than b, a and b is constant that if the scope in section, which is,.
In a particular embodiment, after air conditioner unit receives power-on command, unit start, wind turbine is according to outdoor ring Temperature Th corresponding initial wind shelves in border run some seconds, and detect Compressor Discharge Pressure Pc, outdoor environment temperature Th in real time, cold Condenser outlet refrigerant pressure P, outdoor condensator outlet line temperature Tc.Drawn according to condensator outlet refrigerant pressure P current cold The corresponding saturation temperature of matchmaker's pressure, and according to formula:N=(Tb-Tc)/(Tb-Th), calculates the refrigerant coefficient n.
Further, judge whether refrigerant coefficient n=[a, b] sets up, if so, then wind turbine enters Compressor Discharge Pressure Pc control logics.If Pc >=A, the current gear for controlling wind turbine adds 1 grade, until wind shelves increase to most strong wind shelves, then no longer increases Greatly;If Pc≤B, the current gear for controlling wind turbine subtracts 1 grade, until wind shelves are reduced to 0, then no longer reduces;If B < Pc < A, Wind shelves carry out keeping current wind shelves not adjust.First compression machine pressure at expulsion Pc was detected every some seconds, carries out repeating judgement.
If refrigerant coefficient n=[a, b] is invalid, then determine whether n < a set up, if so, then determine whether Whether current wind shelves are minimum wind shelves, if minimum wind shelves, then go successively to Compressor Discharge Pressure Pc control logics and adjust wind Shelves, if not minimum wind shelves, then currently the gear of control wind turbine subtracts 1 grade, and is once judged every some minutes;
If refrigerant coefficient n < a are invalid, determine whether n > b set up, if so, determine whether current wind Whether shelves are most strong wind shelves, if most strong wind shelves, then go successively to Compressor Discharge Pressure Pc control logics and adjust wind shelves, if not It is most strong wind shelves, then currently the gear of control wind turbine adds 1 grade, and is once judged every some minutes.
Herein it should be noted that since refrigerant coefficient n and the first pre-set interval, the second pre-set interval and the 3rd are default Section enumerates the situation included by whole refrigerant coefficient n, therefore, when judging refrigerant coefficient n not in the second pre-set interval, then Illustrate refrigerant coefficient n in the 3rd pre-set interval, be i.e. achievable to wind can not carry out further judging to refrigerant coefficient n The control of machine gear;Correspondingly, when judging refrigerant coefficient n not in three pre-set intervals, then illustrate that refrigerant coefficient n is pre- second If section, meanwhile, the mode of control wind turbine gear is to control the rotating speed of wind turbine.
In conclusion the control method of air-conditioning system provided by the invention, device and air conditioner, after air conditioner startup, The first preset time of wind turbine is run with the preset gear corresponding to outdoor environment temperature Th, and according to condensator outlet refrigerant pressure P, condenser inlet refrigerant pressure show that current refrigerant pressure is corresponding full with any one in the Compressor Discharge Pressure three And temperature, and then current refrigerant coefficient n is calculated, so that by the pre-set interval where refrigerant coefficient n, control the fortune of wind turbine Row gear, and then automatically adjust to the gear of wind turbine, also, according to the pre-set interval where refrigerant coefficient n to wind turbine Gear carries out reasonably optimizing control mode, realizes the gear of automatic adjustment wind turbine, wind turbine is in optimal operating status all the time, So as to improve the heat exchange efficiency and reliability of unit, run in a manner of more energy-efficient, improve changing for whole air-conditioning system Thermal effect.
In the present invention, term " first ", " second " are only used for the purpose described, and it is not intended that instruction or hint phase To importance, the term such as term " connected ", " connection " should all be interpreted broadly, for example, " connection " can be fixedly connected, also may be used To be to be detachably connected, or it is integrally connected;" connected " can be directly connected, and can also be indirectly connected by intermediary, For the ordinary skill in the art, it can understand that above-mentioned term in the present invention specific contains as the case may be Justice.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc. Mean to combine at least one reality that the particular features, structures, materials, or characteristics that the embodiment or example describe are contained in the present invention Apply in example or example.In the present specification, schematic expression of the above terms is not necessarily referring to identical embodiment or reality Example.Moreover, description particular features, structures, materials, or characteristics can in any one or more embodiments or example with Suitable mode combines.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the invention, for the skill of this area For art personnel, the invention may be variously modified and varied.Within the spirit and principles of the invention, that is made any repaiies Change, equivalent substitution, improvement etc., should all be included in the protection scope of the present invention.

Claims (17)

1. a kind of control method of air-conditioning system, the air-conditioning system includes outdoor unit, and the outdoor unit includes outdoor unit environment Temperature sensor, compressor and compressor discharge pressure sensor, outdoor heat exchanger and outdoor heat exchanger line temperature sensor, Outdoor condenser refrigerant pressure sensor, and wind turbine, it is characterised in that the control method includes:
Detection Compressor Discharge Pressure Pc, outdoor environment temperature Th in real time, condensator outlet refrigerant pressure P or condenser inlet are cold Matchmaker's pressure, outdoor condensator outlet line temperature Tc;
The wind turbine is controlled to run the first preset time with preset gear;
According to the condensator outlet refrigerant pressure P, the condenser inlet refrigerant pressure and the Compressor Discharge Pressure Pc In any one, draw the corresponding saturation temperature Tb of current refrigerant pressure, and calculate current refrigerant coefficient n;
According to the pre-set interval where the refrigerant coefficient n, the operational taps of the wind turbine are controlled;
Wherein, when the preset gear is started shooting for the air-conditioning system, original speed position corresponding with the outdoor environment temperature Th.
2. the control method of air-conditioning system according to claim 1, it is characterised in that
The pre-set interval includes:First pre-set interval, the second pre-set interval and the 3rd pre-set interval;
Wherein, the scope of first pre-set interval is that, more than or equal to a, the scope of second pre-set interval is less than or equal to b Less than a, it more than b, a and the b is constant that the scope of the 3rd pre-set interval, which is,.
3. the control method of air-conditioning system according to claim 1, it is characterised in that described according to the refrigerant coefficient n The pre-set interval at place, the step of controlling the operational taps of the wind turbine, specifically includes:
Judge the refrigerant coefficient n whether in first pre-set interval;
It is default according to where the Compressor Discharge Pressure Pc when the refrigerant coefficient n is in first pre-set interval Pressure at expulsion section, controls the gear of the wind turbine;
When the refrigerant coefficient n is not in first pre-set interval, the pre-set interval according to where the refrigerant coefficient n The gear of the wind turbine is adjusted, so that the refrigerant coefficient n is in first pre-set interval.
4. the control method of air-conditioning system according to claim 3, it is characterised in that
The default pressure at expulsion section includes, the first default pressure at expulsion section, the second default pressure at expulsion section and the 3rd Default pressure at expulsion section;
Wherein, the value range in the described first default pressure at expulsion section is less than A, more than B;Described second default pressure at expulsion The value range in section is less than or equal to B;Described 3rd default pressure at expulsion section is more than or equal to A.
5. the control method of air-conditioning system according to claim 4, it is characterised in that described when the refrigerant coefficient n exists When in first pre-set interval, the default pressure at expulsion section according to where the Compressor Discharge Pressure Pc, described in control The step of gear of wind turbine, specifically include:
The Compressor Discharge Pressure Pc is obtained according to the first predeterminated frequency;
Determine the default pressure at expulsion section where the Compressor Discharge Pressure Pc;
When the Compressor Discharge Pressure Pc is in the described first default pressure at expulsion section, the wind shelves of the wind turbine are kept not Become;
When the Compressor Discharge Pressure Pc is in the described second default pressure at expulsion section, reduce the gear of the wind turbine, extremely Lowest gear;
When the Compressor Discharge Pressure Pc is in the described 3rd default pressure at expulsion section, increase the gear of the wind turbine, extremely Highest gear.
6. the control method of air-conditioning system according to claim 3, it is characterised in that described to work as the refrigerant coefficient n not When in first pre-set interval, the pre-set interval adjusts the gear of the wind turbine according to where the refrigerant coefficient n, with So that steps of the refrigerant coefficient n in first pre-set interval, specifically includes:
Judge the refrigerant coefficient n whether in second pre-set interval;
When the refrigerant coefficient n is in second pre-set interval, determine whether the wind turbine current gear whether be The lowest gear of the wind turbine;
When the current gear is the lowest gear, according to the default pressure at expulsion where the Compressor Discharge Pressure Pc Section, controls the gear of the wind turbine;
When the current gear is not the lowest gear, reduce the gear of the wind turbine according to the second predeterminated frequency, so that The refrigerant coefficient n is obtained in first pre-set interval.
7. the control method of air-conditioning system according to claim 6, it is characterised in that
When the refrigerant coefficient n is not in second pre-set interval, determine whether the refrigerant coefficient n whether described In 3rd pre-set interval;
When the refrigerant coefficient n is in the 3rd pre-set interval, determine whether the wind turbine current gear whether be The highest gear of the wind turbine;
When the current gear is the highest gear, according to the default pressure at expulsion where the Compressor Discharge Pressure Pc Section, controls the gear of the wind turbine;
When the current gear is not the highest gear, increase the gear of the wind turbine according to the 3rd predeterminated frequency, so that The refrigerant coefficient n is obtained in first pre-set interval.
8. the control method of air-conditioning system according to any one of claim 1 to 7, it is characterised in that the calculating is cold The step of matchmaker coefficient n, specifically include:
According to formula:N=(Tb-Tc)/(Tb-Th), calculates the refrigerant coefficient n.
9. a kind of control device of air-conditioning system, the air-conditioning system includes outdoor unit, and the outdoor unit includes outdoor unit environment Temperature sensor, compressor and compressor discharge pressure sensor, outdoor heat exchanger and outdoor heat exchanger line temperature sensor, Outdoor condenser refrigerant pressure sensor, and wind turbine, it is characterised in that including:
Detection unit, for detecting Compressor Discharge Pressure Pc, outdoor environment temperature Th, condensator outlet refrigerant pressure P in real time Or condenser inlet refrigerant pressure, outdoor condensator outlet line temperature Tc;
First control unit, for controlling the wind turbine to run the first preset time with preset gear;
First computing unit, for according to the condensator outlet refrigerant pressure P, the condenser inlet refrigerant pressure with it is described Any one in Compressor Discharge Pressure Pc draws the corresponding saturation temperature Tb of current refrigerant pressure;
Second computing unit, for calculating current refrigerant coefficient n;
Second control unit, it is default according to where the refrigerant coefficient n after the first preset time described in the fan operation Section, controls the operational taps of the wind turbine;
Wherein, when the preset gear is started shooting for the air-conditioning system, original speed position corresponding with the outdoor environment temperature Th.
10. the control device of air-conditioning system according to claim 9, it is characterised in that
The pre-set interval includes:First pre-set interval, the second pre-set interval and the 3rd pre-set interval;
Wherein, the scope of first pre-set interval is that, more than or equal to a, the scope of second pre-set interval is less than or equal to b Less than a, it more than b, a and the b is constant that the scope of the 3rd pre-set interval, which is,.
11. the control device of air-conditioning system according to claim 9, it is characterised in that further include:
First judging unit, for judging the refrigerant coefficient n whether in first pre-set interval;
3rd control unit, for judging the refrigerant coefficient n in first pre-set interval when first judging unit When, the default pressure at expulsion section according to where the Compressor Discharge Pressure Pc, controls the gear of the wind turbine;When described When one judging unit judges the refrigerant coefficient n not in first pre-set interval, described according to where the refrigerant coefficient n Pre-set interval adjusts the gear of the wind turbine, so that the refrigerant coefficient n is in first pre-set interval.
12. the control device of air-conditioning system according to claim 11, it is characterised in that
The default pressure at expulsion section includes, the first default pressure at expulsion section, the second default pressure at expulsion section and the 3rd Default pressure at expulsion section;
Wherein, the value range in the described first default pressure at expulsion section is less than A, more than B;Described second default pressure at expulsion The value range in section is less than or equal to B;Described 3rd default pressure at expulsion section is more than or equal to A.
13. the control device of air-conditioning system according to claim 12, it is characterised in that further include:
Acquiring unit, for obtaining the Compressor Discharge Pressure Pc according to the first predeterminated frequency;
Second judging unit, judges the default pressure at expulsion section where the Compressor Discharge Pressure Pc;
4th control unit, for judging that the Compressor Discharge Pressure Pc is default described first when second judging unit During pressure at expulsion section, keep the wind shelves of the wind turbine constant;When second judging unit judges the compressor air-discharging pressure Power Pc reduces the gear of the wind turbine, to lowest gear at the described second default pressure at expulsion section;When the described second judgement Compressor Discharge Pressure Pc described in unit judges increases the gear of the wind turbine at the described 3rd default pressure at expulsion section, To highest gear.
14. the control device of air-conditioning system according to claim 11, it is characterised in that further include:
3rd judging unit, for judging the refrigerant coefficient n whether in second pre-set interval;
4th judging unit, for judging the refrigerant coefficient n in second pre-set interval when the 3rd judging unit When, determine whether the wind turbine current gear whether be the wind turbine lowest gear;
5th control unit, for when it is the lowest gear that the 4th judging unit, which judges the current gear, according to Default pressure at expulsion section where the Compressor Discharge Pressure Pc, controls the gear of the wind turbine;When the described 4th judgement When current gear described in unit judges is not the lowest gear, reduce the gear of the wind turbine according to the second predeterminated frequency, with So that the refrigerant coefficient n is in first pre-set interval.
15. the control device of air-conditioning system according to claim 14, it is characterised in that further include:
5th judging unit, for judging the refrigerant coefficient n not in second pre-set interval when the 3rd judging unit When interior, determine whether the refrigerant coefficient n whether in the 3rd pre-set interval;
6th judging unit, for judging the refrigerant coefficient n in the 3rd pre-set interval when the 5th judging unit When, determine whether the wind turbine current gear whether be the wind turbine highest gear;
6th control unit, for when it is the highest gear that the 6th judging unit, which judges the current gear, according to Default pressure at expulsion section where the Compressor Discharge Pressure Pc, controls the gear of the wind turbine;When the described 6th judgement When current gear described in unit judges is not the highest gear, increase the gear of the wind turbine according to the 3rd predeterminated frequency, with So that the refrigerant coefficient n is in first pre-set interval.
16. the control device of the air-conditioning system according to any one of claim 9 to 15, it is characterised in that described second Computing unit, the refrigerant coefficient n for calculating current are specifically included:
According to formula:N=(Tb-Tc)/(Tb-Th), calculates the refrigerant coefficient n.
A kind of 17. air conditioner, it is characterised in that including:
The control device of air-conditioning system as any one of claim 9 to 16.
CN201711071787.0A 2017-11-03 2017-11-03 Control method and device of air conditioning system and air conditioner Active CN107917512B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Publication Number Publication Date
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108534309A (en) * 2018-04-19 2018-09-14 广东美的暖通设备有限公司 Air-conditioning system and its control method
CN108534310A (en) * 2018-04-19 2018-09-14 广东美的暖通设备有限公司 Air-conditioning system and its control method
CN109915990A (en) * 2019-02-22 2019-06-21 珠海格力电器股份有限公司 Method and device for controlling fan and air conditioning system
CN110440406A (en) * 2019-08-05 2019-11-12 珠海格力电器股份有限公司 Fan control method, device and unit equipment
CN110726219A (en) * 2019-10-29 2020-01-24 珠海格力电器股份有限公司 Control method, device and system of air conditioner, storage medium and processor
WO2022151747A1 (en) * 2021-01-15 2022-07-21 广东美的暖通设备有限公司 Air conditioning system and refrigerant state inspection method and device thereof

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102518595A (en) * 2011-12-13 2012-06-27 Tcl空调器(中山)有限公司 Method for controlling rotating speed of outer fan of multi-split air conditioner
CN103292421A (en) * 2013-06-17 2013-09-11 南京天加空调设备有限公司 Multi-split refrigeration operation outer draught fan rotating speed control method
CN103759345A (en) * 2014-02-21 2014-04-30 广东志高暖通设备股份有限公司 Draught fan control method
JP2015068596A (en) * 2013-09-30 2015-04-13 株式会社富士通ゼネラル Air conditioner
CN104697106A (en) * 2013-12-09 2015-06-10 珠海格力电器股份有限公司 Pressure control method of air conditioning system
JP2015124893A (en) * 2013-12-25 2015-07-06 株式会社富士通ゼネラル Air conditioning device
CN105371403A (en) * 2015-11-30 2016-03-02 珠海格力电器股份有限公司 variable-frequency air-cooled air conditioning unit and control method
CN105485865A (en) * 2016-02-16 2016-04-13 珠海格力电器股份有限公司 Air conditioner control method and device and air conditioner
CN105737389A (en) * 2014-12-10 2016-07-06 青岛经济技术开发区海尔热水器有限公司 Efficient defrosting method and device combining fan speed and pressure control
CN106839294A (en) * 2017-01-17 2017-06-13 广东美的暖通设备有限公司 Control method and device when multiple on-line system and its cryogenic refrigeration
CN107062564A (en) * 2017-06-13 2017-08-18 广东美的暖通设备有限公司 Control method, air conditioner and the storage medium of air conditioner
CN107120784A (en) * 2017-04-07 2017-09-01 广东美的暖通设备有限公司 Air-conditioning system and its control method of outdoor fan, device

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102518595A (en) * 2011-12-13 2012-06-27 Tcl空调器(中山)有限公司 Method for controlling rotating speed of outer fan of multi-split air conditioner
CN103292421A (en) * 2013-06-17 2013-09-11 南京天加空调设备有限公司 Multi-split refrigeration operation outer draught fan rotating speed control method
JP2015068596A (en) * 2013-09-30 2015-04-13 株式会社富士通ゼネラル Air conditioner
CN104697106A (en) * 2013-12-09 2015-06-10 珠海格力电器股份有限公司 Pressure control method of air conditioning system
JP2015124893A (en) * 2013-12-25 2015-07-06 株式会社富士通ゼネラル Air conditioning device
CN103759345A (en) * 2014-02-21 2014-04-30 广东志高暖通设备股份有限公司 Draught fan control method
CN105737389A (en) * 2014-12-10 2016-07-06 青岛经济技术开发区海尔热水器有限公司 Efficient defrosting method and device combining fan speed and pressure control
CN105371403A (en) * 2015-11-30 2016-03-02 珠海格力电器股份有限公司 variable-frequency air-cooled air conditioning unit and control method
CN105485865A (en) * 2016-02-16 2016-04-13 珠海格力电器股份有限公司 Air conditioner control method and device and air conditioner
CN106839294A (en) * 2017-01-17 2017-06-13 广东美的暖通设备有限公司 Control method and device when multiple on-line system and its cryogenic refrigeration
CN107120784A (en) * 2017-04-07 2017-09-01 广东美的暖通设备有限公司 Air-conditioning system and its control method of outdoor fan, device
CN107062564A (en) * 2017-06-13 2017-08-18 广东美的暖通设备有限公司 Control method, air conditioner and the storage medium of air conditioner

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108534309A (en) * 2018-04-19 2018-09-14 广东美的暖通设备有限公司 Air-conditioning system and its control method
CN108534310A (en) * 2018-04-19 2018-09-14 广东美的暖通设备有限公司 Air-conditioning system and its control method
CN109915990A (en) * 2019-02-22 2019-06-21 珠海格力电器股份有限公司 Method and device for controlling fan and air conditioning system
CN110440406A (en) * 2019-08-05 2019-11-12 珠海格力电器股份有限公司 Fan control method, device and unit equipment
CN110726219A (en) * 2019-10-29 2020-01-24 珠海格力电器股份有限公司 Control method, device and system of air conditioner, storage medium and processor
CN110726219B (en) * 2019-10-29 2020-10-09 珠海格力电器股份有限公司 Control method, device and system of air conditioner, storage medium and processor
WO2022151747A1 (en) * 2021-01-15 2022-07-21 广东美的暖通设备有限公司 Air conditioning system and refrigerant state inspection method and device thereof

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