CN113154624B - Air conditioner compressor starting control method and air conditioner - Google Patents
Air conditioner compressor starting control method and air conditioner Download PDFInfo
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- CN113154624B CN113154624B CN202110408719.9A CN202110408719A CN113154624B CN 113154624 B CN113154624 B CN 113154624B CN 202110408719 A CN202110408719 A CN 202110408719A CN 113154624 B CN113154624 B CN 113154624B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/10—Pressure
- F24F2140/12—Heat-exchange fluid pressure
Abstract
The embodiment of the invention provides an air conditioner compressor starting control method and an air conditioner. The control method for starting the air conditioner compressor comprises the following steps: acquiring a starting-up instruction; if there is a start-up command, detecting the high pressure P of the systemdAnd the system low pressure Ps(ii) a Determining a pressure ratio P when an air conditioner compressor is started, and setting initial starting current of the compressor according to the pressure ratio P; wherein the pressure ratio P is P ═ Pd/Ps. The invention achieves the technical effect of improving the starting success rate of the air conditioner compressor.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a control method for starting an air conditioner compressor and an air conditioner.
Background
An air conditioner is also called an air conditioner, and refers to a device for adjusting and controlling parameters such as temperature, humidity, flow rate and the like of ambient air in a building or a structure by manual means. Air conditioners use the principle of phase change of a refrigerant, i.e., the refrigerant changes from a gaseous state to a liquid state, and a large amount of heat is released. When the liquid state is changed into the gas state, a large amount of heat can be absorbed, and the indoor space is cooled or heated. The compressor serves as a refrigeration heart of the air conditioner for compression driving the refrigerant in the refrigerant circuit.
However, when the temperature of the air conditioner use environment and the installation environment are severe, the pressure ratio in the compressor is high when the air conditioner is started, and the problem of poor starting or failed starting of the air conditioner often occurs, so that the starting success rate of the air conditioner compressor is reduced.
Disclosure of Invention
In order to solve the above problems, the present invention provides a method for controlling the start of a compressor of an air conditioner, comprising: acquiring a starting-up instruction; if there is a start-up command, detecting the high pressure P of the systemdAnd the system low pressure Ps(ii) a Determining a pressure ratio P when an air conditioner compressor is started, and setting initial starting current of the compressor according to the pressure ratio P; wherein the pressure ratio P is Pd/Ps。
The technical effect achieved after the technical scheme is adopted is as follows: by applying high pressure P to the systemdAnd the system low pressure PsThe method comprises the steps of carrying out real-time detection, and obtaining the pressure ratio P when the air conditioner compressor is started in real time, so that higher initial starting current can be set when the air conditioner compressor is started and the pressure ratio is higher, the air conditioner compressor can be started smoothly, and the starting success rate of the air conditioner compressor is improved.
In this embodiment, the setting of the initial starting current of the compressor according to the pressure ratio P includes: judging the high pressure P of the systemdThe magnitude relation with a preset system high-pressure threshold value is judged, the magnitude relation between the pressure ratio P and the preset pressure ratio threshold value is judged, and the initial starting current of the compressor is set; wherein the preset system high voltage threshold comprises a first preset high voltage Pd1And a second preset high voltage Pd2The first preset high voltage Pd1Not more than second preset high pressure Pd2。
The technical effect achieved after the technical scheme is adopted is as follows: by presetting the high-voltage threshold of the system, the first preset high voltage P can be obtained according to the preset high-voltage threshold of the systemd1And a second preset high voltage Pd2Dividing the high pressure of the system into three pressure ranges, and detecting the obtained high pressure P of the systemdThe starting current of the air conditioner compressor is set according to the size relation of the preset system high-pressure threshold value, so that different initial starting currents can be set in different pressure ranges, the air conditioner compressor can be started smoothly in each pressure range, and the starting success rate of the air conditioner compressor is improved.
In this embodiment, the method for controlling the start of the compressor of the air conditioner includes: high pressure P of the systemd< first preset high pressure Pd1Judging the magnitude relation between the pressure ratio P and a preset pressure ratio threshold value, and setting the initial starting current of the compressor; wherein the preset pressure ratio threshold comprises a first preset pressure ratio Pa1And a second predetermined pressure ratio Pa2A first predetermined pressure ratio Pa1Not more than a second preset pressure ratio Pa2。
The technical effect achieved after the technical scheme is adopted is as follows: by applying a high pressure P to the systemd< first preset high pressure Pd1Setting the preset pressure ratio threshold value as a first preset pressure ratio Pa1And a second predetermined pressure ratio Pa2And a first predetermined pressure ratio Pa1Less than or equal to a second preset pressure ratio Pa2According to said pressure ratio P and a first predetermined pressure ratio Pa1And a second predetermined pressure ratio Pa2Setting the high pressure P of the systemd< first preset high pressure Pd1Initial starting current so as to ensure high pressure P of systemd< first preset high pressure Pd1The air conditioner compressor can be started smoothly.
In the present embodiment, the system high pressure P is satisfiedd< first preset high pressure Pd1In the case of (2), pressure ratio P<A first predetermined pressure ratio Pa1When the starting current is set to Ia1(ii) a Pressure ratio P>Second predetermined pressure ratio Pa2When the starting current is set to Ia2(ii) a A first predetermined pressure ratio Pa1The pressure ratio P is not less than the second preset pressure ratio Pa2When the starting current is set to Ia3＝Ia1+[(Ia2-Ia1)/(Pa2-Pa1)]*(P-Pa1)。
The technical effect achieved after the technical scheme is adopted is as follows: at high system pressure Pd< first preset high pressure Pd1By making the pressure ratio P smaller than a first preset pressure ratio Pa1When the initial starting current of the compressor is set to Ia1(ii) a The pressure ratio P is greater than the second preset pressure ratio Pa2When in use, willInitial starting current of compressor is set as Ia2(ii) a When the pressure ratio P is between the two, the initial starting current of the compressor is set to I according to linear fittinga3(ii) a Wherein, Ia2>Ia3>Ia1. Setting a higher initial starting current when the voltage ratio is higher; when the voltage ratio is lower, a lower initial starting current is set; on one hand, the problems of poor starting and failed starting of the air conditioner compressor under the condition of high pressure ratio can be avoided, and the smooth starting of the air conditioner compressor is ensured; on the other hand, the relatively low initial starting current can be set under the condition that the air conditioner pressure ratio is relatively low, so that the energy consumption of the air conditioner compressor is reduced under the condition that the air conditioner compressor is guaranteed to be started smoothly, and the effects of saving electricity and energy are achieved.
In this embodiment, the method for controlling the start of the air conditioner compressor further includes: high pressure P of the systemdSecond preset high voltage Pd2Judging the magnitude relation between the pressure ratio P and a preset pressure ratio threshold value, and setting the initial starting current of the compressor; wherein the preset pressure ratio threshold comprises a first preset pressure ratio Pb1And a second predetermined pressure ratio Pb2A first predetermined pressure ratio Pb1Not more than a second preset pressure ratio Pb2. Pressure ratio P<A first predetermined pressure ratio Pb1When the starting current is set to Ib1(ii) a Pressure ratio P>Second predetermined pressure ratio Pb2At first, the compressor starts the current Ib2(ii) a A first predetermined pressure ratio Pb1The pressure ratio P is not less than the second preset pressure ratio Pb2When the starting current is set to Ib3＝Ib1+[(Ib2-Ib1)/(Pb2-Pb1)]*(P-Pb1)。
The technical effect achieved after the technical scheme is adopted is as follows: at high pressure P in the systemdGreater than a second predetermined high pressure Pd2By making the pressure ratio P less than a first preset pressure ratio Pb1While setting a relatively low initial starting current Ib1(ii) a When the pressure ratio P is larger than a second preset pressure ratio Pb2While setting a relatively high initial starting current toIb2(ii) a When the pressure ratio P is between a first preset pressure ratio Pb1And a second predetermined pressure ratio Pb2In time between, set to be between IbAnd Ib2Initial starting current I in betweenb3. The air conditioner compressor can set corresponding initial starting current according to the pressure ratio P, and further the system high pressure P of the air conditioner compressor is ensureddGreater than a second predetermined high pressure Pd2In the case of (2), the start-up can be smoothly performed.
In this embodiment, the method for controlling the start of the air conditioner compressor further includes: first preset high voltage Pd1Not more than the high pressure P of the systemdNot more than second preset high pressure Pd2Judging the magnitude relation between the pressure ratio P and a preset pressure ratio threshold value, and setting the initial starting current of the compressor; wherein the preset pressure ratio threshold comprises a first preset pressure ratio Pc1And a second predetermined pressure ratio Pc2A first predetermined pressure ratio Pc1Not more than a second preset pressure ratio Pc2. Pressure ratio P<A first predetermined pressure ratio Pc1When the starting current is set to Ic1(ii) a Pressure ratio P>Second predetermined pressure ratio Pc2When the initial starting current of the compressor is Ic2(ii) a A first predetermined pressure ratio Pc1The pressure ratio P is not less than the second preset pressure ratio Pc2When the starting current is set to Ic3＝Ic1+[(Ic2-Ic1)/(Pc2-Pc1)]*(P-Pc1)。
The technical effect achieved after the technical scheme is adopted is as follows: at high pressure P in the systemdBetween the first preset high voltage Pd1And a second predetermined high voltage Pd2In between, the preset pressure ratio threshold comprises a first preset pressure ratio Pc1And a second predetermined pressure ratio Pc2. By the pressure ratio P and a first preset pressure ratio Pc1And a second predetermined pressure ratio Pc2The initial starting current of different compressors is set according to the size relation between the high pressure and the low pressure, so that the high pressure P of the system is ensureddBetween the first preset high voltage Pd1And a second predetermined high voltage Pd2In between, the air conditioner compressor can start smoothly.
An embodiment of the present invention provides an air conditioner, including: a detection unit for detecting the system high pressure PdAnd the system low pressure Ps(ii) a A calculation unit for determining a system high pressure PdAnd the system low pressure PsCalculating a corresponding pressure ratio P; and the control unit is used for setting the initial starting current of the compressor according to the pressure ratio P.
An embodiment of the present invention provides an air conditioner, including: the present invention provides an air conditioner, comprising: a computer-readable storage medium storing a computer program that when read and executed by the packaged IC, implements the air conditioner control method according to any one of the above embodiments, and a packaged IC.
In summary, the above embodiments of the present application may have one or more of the following advantages or benefits:
(1) by applying high pressure P to the systemdAnd the system low pressure PsThe method comprises the steps of carrying out real-time detection, and obtaining the pressure ratio P when the air conditioner compressor is started in real time, so that a higher initial starting current can be set when the air conditioner compressor is started with a higher pressure ratio, the air conditioner compressor can be started smoothly, and the starting rate of the air conditioner compressor is improved.
(2) By presetting a system high-pressure threshold and a pressure ratio threshold, different initial starting currents can be set in different pressure ranges and under different pressure ratios, so that the air conditioner compressor can be smoothly started in each pressure range, and the starting success rate of the air conditioner compressor is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a flowchart illustrating a method for controlling the start of a compressor of an air conditioner according to a first embodiment of the present invention.
Fig. 2 is a schematic flowchart of a method for controlling the start of an air conditioner compressor according to a first embodiment of the present invention.
Fig. 3 is a flowchart illustrating a method for controlling the start of an air conditioner compressor according to a second embodiment of the present invention.
Fig. 4 is a flowchart illustrating a method for controlling the start of an air conditioner compressor according to a third embodiment of the present invention.
Fig. 5 is a block diagram of an air conditioner 200 according to a fourth embodiment of the present invention.
Fig. 6 is a block diagram of a readable storage medium according to a sixth embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
[ first embodiment ] A method for manufacturing a semiconductor device
Referring to fig. 1, a flowchart of a method for controlling a start of a compressor of an air conditioner according to a first embodiment of the present invention is shown. The control method for starting the air conditioner compressor comprises the following steps:
step S10: acquiring a starting-up instruction;
step S20: detecting system high pressure PdAnd the system low pressure Ps；
Step S30: calculating the pressure ratio P as the system high pressure PdLow pressure of system Ps；
Step S40: and setting the initial starting current of the compressor according to the pressure ratio P.
After obtaining the boot instruction, the system is first detectedPressure P of high pressuredAnd the system low pressure PsSecondly according to the high pressure P of the systemdAnd the system low pressure PsAnd calculating the high-low pressure ratio P of the system, and finally setting the initial starting current of the compressor according to the pressure ratio P. The control method for starting the air conditioner compressor can set a larger initial starting current under the condition that the pressure ratio P is higher, so that the air conditioner compressor can be started smoothly, the phenomena of poor starting and failed starting of the air conditioner compressor are avoided, and the starting success rate of the air conditioner compressor is improved.
Further, the step S40 includes, for example: judging the high pressure P of the systemdAnd setting the initial starting current of the compressor according to the magnitude relation of the high-pressure threshold of the preset system. Wherein the preset system high voltage threshold comprises a first preset high voltage Pd1And a second preset high voltage Pd2The first preset high voltage Pd1Not more than second preset high pressure Pd2。
In particular, according to the high pressure P of the systemdWith the big or small relation of presetting system high pressure threshold, can divide into system high pressure: high pressure P of the systemd< first preset high pressure Pd1Said system high pressure PdSecond preset high voltage Pd2And a first preset high voltage Pd1Not more than the high pressure P of the systemdNot more than second preset high pressure Pd2And the three high-pressure intervals can set the initial starting current of the air conditioner compressor in each high-pressure interval according to the pressure ratio P, so that the air conditioner compressor can be smoothly started in each high-pressure interval.
Further, referring to fig. 2, the system has a high pressure Pd< first preset high pressure Pd1Firstly, judging the magnitude relation between the pressure ratio P and a preset pressure ratio threshold value, and then setting the initial starting current of the compressor according to the magnitude relation between the pressure ratio P and the preset pressure ratio threshold value. Wherein the preset pressure ratio threshold comprises a first preset pressure ratio Pa1And a second predetermined pressure ratio Pa2First predetermined pressureRatio Pa1Not more than a second preset pressure ratio Pa2。
Specifically, the pressure ratio P can be divided into a low pressure ratio, a high pressure ratio, and three cases therebetween according to the magnitude relationship between the pressure ratio P and a preset pressure ratio threshold. Pressure ratio P<A first predetermined pressure ratio Pa1When the pressure ratio P is a low pressure ratio, the initial starting current of the compressor is set to be Ia1(ii) a Pressure ratio P>Second predetermined pressure ratio Pa2When the pressure ratio P is a high pressure ratio, the initial starting current of the compressor is set as Ia2(ii) a A first predetermined pressure ratio Pa1The pressure ratio P is not less than the second preset pressure ratio Pa2When the pressure ratio P is between the low pressure ratio and the high pressure ratio, the linear fitting mode is adopted, and the initial starting current of the compressor is set to be Ia3＝Ia1+[(Ia2-Ia1)/(Pa2-Pa1)]*(P-Pa1)。
[ second embodiment ] A
Referring to FIG. 3, the system high pressure PdSecond preset high voltage Pd2Firstly, judging the magnitude relation between the pressure ratio P and a preset pressure ratio threshold value, and then setting the initial starting current of the compressor according to the magnitude relation between the pressure ratio P and the preset pressure ratio threshold value. Wherein the preset pressure ratio threshold comprises a first preset pressure ratio Pb1And a second predetermined pressure ratio Pb2A first predetermined pressure ratio Pb1Not more than a second preset pressure ratio Pb2。
In particular, the pressure ratio P<A first predetermined pressure ratio Pb1When the starting current is set to Ib1(ii) a Pressure ratio P>Second predetermined pressure ratio Pb2When the starting current is set to Ib2(ii) a A first predetermined pressure ratio Pb1The pressure ratio P is not less than the second preset pressure ratio Pb2When the starting current is set to Ib3＝Ib1+[(Ib2-Ib1)/(Pb2-Pb1)]*(P-Pb1)。
[ third embodiment ]
Referring to fig. 4, the first preset high voltage Pd1Not more than the high pressure P of the systemdNo more than thatTwo preset high voltages Pd2Firstly, judging the magnitude relation between the pressure ratio P and a preset pressure ratio threshold value, and then setting the initial starting current of the compressor according to the magnitude relation between the pressure ratio P and the preset pressure ratio threshold value. Wherein the preset pressure ratio threshold comprises a first preset pressure ratio Pc1And a second predetermined pressure ratio Pc2A first predetermined pressure ratio Pc1Not more than a second preset pressure ratio Pc2。
In particular, the pressure ratio P<A first predetermined pressure ratio Pc1When the starting current is set to Ic1(ii) a Pressure ratio P>Second predetermined pressure ratio Pc2When the starting current is set to Ic2(ii) a A first predetermined pressure ratio Pc1The pressure ratio P is not less than the second preset pressure ratio Pc2When the starting current is set to Ic3＝Ic1+[(Ic2-Ic1)/(Pc2-Pc1)]*(P-Pc1)。
[ fourth example ] A
A fourth embodiment of the present invention provides an air conditioner 200, and referring to fig. 5, the air conditioner 200 includes, for example: a detection unit 210, a calculation unit 220, and a control unit 230. Wherein the detecting unit 210 is used for detecting the system high pressure PdAnd the system low pressure Ps(ii) a The computing unit 220 is used for calculating the high pressure P of the systemdAnd the system low pressure PsCalculating a corresponding pressure ratio P; the control unit 230 is used for setting the initial starting current of the compressor according to the pressure ratio P.
In a specific embodiment, the detecting unit 210, the calculating unit 220 and the controlling unit 230 cooperate to implement the method for controlling the start of the compressor of the air conditioner according to the first embodiment. For example, after the air conditioner compressor obtains the start-up command, the detecting unit 210 first detects the high pressure P of the systemdAnd the system low pressure PsDetecting, and then the calculating unit 220 calculates the system high pressure P according to the system high pressure P obtained by the detecting unit 210dAnd the system low pressure PsCalculates the corresponding pressure ratio P, and then the control unit 230 calculates the corresponding system high pressure PdThe magnitude relation with the high-voltage threshold value of the preset system, and the pressure ratio P and the presetAnd setting corresponding initial starting current of the compressor according to the magnitude relation of the pressure ratio threshold value, and executing the starting of the compressor of the air conditioner.
[ fifth embodiment ]
A fifth embodiment of the present invention provides an air conditioner, for example, including: a computer-readable storage medium storing a computer program that when read and executed by the package IC, implements the control method of air conditioner compressor start-up as described in the first embodiment, and a package IC.
In one embodiment, the packaged IC is, for example, a processor chip electrically connected to the computer-readable storage medium to read and execute the computer program. The packaged IC may also be a packaged circuit board, which is packaged with a processor chip that can read and execute the computer program; of course, the circuit board may also encapsulate the computer-readable storage medium.
The processor chip may further be provided with the air conditioner 200 according to the fourth embodiment, and the processor chip may implement the control method for starting the compressor of the air conditioner according to any one of the first embodiment, the second embodiment, and the third embodiment through the air conditioner 200.
[ sixth embodiment ]
Referring to fig. 6, a schematic structural diagram of a readable storage medium according to a sixth embodiment of the present invention is shown. The readable storage medium 300 is, for example, a non-volatile memory, which is, for example: magnetic media (e.g., hard disks, floppy disks, and magnetic tape), optical media (e.g., CDROM disks and DVDs), magneto-optical media (e.g., optical disks), and hardware devices specially constructed for storing and executing computer-executable instructions (e.g., Read Only Memories (ROMs), Random Access Memories (RAMs), flash memories, etc.). The readable storage medium 400 has stored thereon computer-executable instructions 310. The readable storage medium 300 may be executed by one or more processors or processing devices to execute the computer-executable instructions 310, so as to cause the air conditioner in which the readable storage medium 300 is located to implement the control method for compressor start-up as described in any one of the first, second, and third embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (7)
1. A control method for starting an air conditioner compressor is characterized by comprising the following steps:
acquiring a starting-up instruction;
detecting system high pressure PdAnd the system low pressure Ps；
Determining a pressure ratio P when an air conditioner compressor is started, and setting an initial starting current of the compressor according to the pressure ratio P; wherein the pressure ratio P is P ═ Pd/Ps；
The setting of the initial starting current of the compressor according to the pressure ratio P comprises:
judging the high pressure P of the systemdThe magnitude relation with a preset system high-pressure threshold value is judged, the magnitude relation between the pressure ratio P and the preset pressure ratio threshold value is judged, and the initial starting current of the compressor is set;
wherein the preset system high voltage threshold comprises a first preset high voltage Pd1And a second preset high voltage Pd2The first preset high voltage Pd1Not more than the second preset high pressure Pd2；
High pressure P of the systemd< the first preset high pressure Pd1Judging the magnitude relation between the pressure ratio P and the preset pressure ratio threshold value, and setting the initial starting current of the compressor;
wherein the preset pressure ratio threshold comprises a first preset pressure ratio Pa1And a second predetermined pressure ratio Pa2The first preset pressure ratio Pa1Less than or equal to the second preset pressure ratio Pa2；
The pressure ratio P<The first preset pressure ratio Pa1When the starting current is set to Ia1；
The pressure ratio P>The second preset pressure ratio Pa2When the starting current is set to Ia2；
The first preset pressure ratio Pa1The pressure ratio P is less than or equal to the second preset pressure ratio Pa2When the starting current is set to Ia3＝Ia1+[(Ia2-Ia1)/(Pa2-Pa1)]*(P-Pa1)。
2. The method for controlling the start of a compressor of an air conditioner according to claim 1, further comprising:
high pressure P of the systemdGreater than the second preset high pressure Pd2Judging the magnitude relation between the pressure ratio P and the preset pressure ratio threshold value, and setting the initial starting current of the compressor;
wherein the preset pressure ratio threshold comprises a first preset pressure ratio Pb1And a second predetermined pressure ratio Pb2The first preset pressure ratio Pb1Less than or equal to the second preset pressure ratio Pb2。
3. The method for controlling the start of a compressor of an air conditioner according to claim 2, comprising:
the pressure ratio P<The first preset pressure ratio Pb1When the starting current is set to Ib1；
The pressure ratio P>The second preset pressure ratio Pb2When the starting current is set to Ib2；
The first preset pressure ratio Pb1The pressure ratio P is not less than the second preset pressure ratio Pb2When the starting current is set to Ib3＝Ib1+[(Ib2-Ib1)/(Pb2-Pb1)]*(P-Pb1)。
4. The method for controlling the start of a compressor of an air conditioner according to claim 1, further comprising:
the first preset high voltage Pd1Not more than the high pressure P of the systemdNot more than the second preset high pressure Pd2Judging the magnitude relation between the pressure ratio P and the preset pressure ratio threshold value, and setting the initial starting current of the compressor;
wherein the preset pressure ratio threshold comprises a first preset pressure ratio Pc1And a second predetermined pressure ratio Pc2The first preset pressure ratio Pc1Less than or equal to the second preset pressure ratio Pc2。
5. The method for controlling the start of a compressor of an air conditioner according to claim 4, comprising:
the pressure ratio P<The first preset pressure ratio Pc1When the starting current is set to Ic1；
The pressure ratio P>The second preset pressure ratio Pc2When the starting current is set to Ic2；
The first preset pressure ratio Pc1The pressure ratio P is not less than the second preset pressure ratio Pc2When the starting current is set to Ic3＝Ic1+[(Ic2-Ic1)/(Pc2-Pc1)]*(P-Pc1)。
6. An air conditioner characterized in that it performs the control method of air conditioner compressor start-up according to any one of claims 1 to 5, the air conditioner comprising:
a detection unit for detecting the system high pressure PdAnd the system low pressure Ps；
A calculation unit for determining the system high pressure PdAnd the system low pressure PsCalculating a corresponding pressure ratio P;
and the control unit is used for setting the initial starting current of the compressor according to the pressure ratio P.
7. An air conditioner, comprising: a computer-readable storage medium storing a computer program and a package IC, the computer program being read by the package IC and executed by the package IC, the air conditioner implementing the control method of air conditioner compressor start-up according to any one of claims 1 to 5.
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