A kind of compressor of air conditioner method for controlling number of revolution
Technical field
The present invention relates to a kind of compressor of air conditioner method for controlling number of revolution.
Background technique
Compressor is the heart of refrigeration system, it is transported from the refrigerant gas of air intake duct sucking low-temp low-pressure by clicking
Turn after being compressed with piston to it, to the refrigerant gas of exhaust pipe discharge high temperature and pressure, provides power for refrigeration cycle.
If compressor long-term work is easy to cause under compressor long-term work excessive temperature range in higher rotation speed, increase compressor and
The load that air-conditioning is had to go to the toilet not only influences the service life of compressor, also will affect the air-conditioning service life, and increase electricity, work as compression
Machine temperature is excessively high, and a method may cause compressor fault damage, on the other hand can reduce refrigeration effect.
Summary of the invention
In view of this, improving air-conditioning pressure the purpose of the present invention is to provide a kind of compressor of air conditioner method for controlling number of revolution
The service life and refrigeration effect of contracting machine.
To achieve the above object, the present invention adopts the following technical scheme: a kind of compressor of air conditioner method for controlling number of revolution, special
Sign is, comprising the following steps:
Step S1: the tachometer value of compressor of air conditioner is arranged to N number of revolving speed gear, including the 1st revolving speed gear from low to high
To N revolving speed gear;N number of revolving speed regulation coefficient section is also set up, including the 1st revolving speed regulation coefficient section to N revolving speed adjusts
Coefficient section;The corresponding i-th revolving speed regulation coefficient section of i-th revolving speed gear and preset i-th rotational speed command value, wherein i, N are certainly
So number, and 1≤i≤N;
Step S2: acquisition room temperature T in real timeIt is indoorWith outdoor unit temperature TOutdoor unit;
Step S3: the cryogenic temperature value T being arranged according to air-conditioningSET, the room temperature TIt is indoor, the setting of outdoor unit normal temperature
Value TStandardWith the outdoor unit temperature TOutdoor unit, calculate revolving speed regulation coefficient β:
Wherein, A+B=1 and A, B are the constant more than or equal to zero, A >=B;ΔT1The first temperature difference, Δ T for setting2
It is poor for the second temperature of setting, Δ T1For the constant greater than zero, Δ T2For the constant greater than zero;
Step S4: according to the revolving speed regulation coefficient β acquired determine it belonging to revolving speed regulation coefficient section, so that it is determined that right
The rotational speed command value answered;
Step S5: adjusting the current rotating speed value of compressor of air conditioner, and the rotational speed command value for determining it with step S4 is equal.
Further, the i-th rotational speed command value is less than or equal to i+1 rotational speed command value.
Further, the 1st rotational speed command value is the slow-speed of revolution threshold value Vmin of compressor of air conditioner, and slow-speed of revolution threshold value Vmin is not
Zero.
Further, N rotational speed command value is the high rotary speed threshold value Vmax of compressor of air conditioner.
Further, the specific adjustment process of the step S5 is as follows: by the current rotating speed value and step of compressor of air conditioner
The rotational speed command value that S4 is determined is compared, if current rotating speed value is equal to the rotational speed command value that step S4 is determined, keeps current
Tachometer value is constant;Otherwise within next revolving speed control period, the tachometer value of compressor of air conditioner is adjusted to step S4 determination
Rotational speed command value.
Further, the temperature T of real-time detection compressor of air conditionerCompressor, as the temperature T for detecting compressor of air conditionerCompressorGreatly
In the temperature threshold T of settingmax, then, will be corresponding to step S4 determining rotational speed command value within next revolving speed control period
Revolving speed gear is at least one mobile to low level gear.
Further, as the temperature T for detecting compressor of air conditionerCompressorIt is greater than temperature threshold T in time Tmax, control sky
Adjust compressor out of service;Wherein, T is the time threshold of setting.
Further, the room temperature TIt is indoorBy the collected temperature data of temperature sensor of several settings indoors
Average value.
Compared with the prior art, the invention has the following beneficial effects:
1, the present invention can dynamically adjust the revolving speed of compressor of air conditioner, avoid compressor of air conditioner from running at high speed for a long time, mention
The service life of high compressor;
2, the present invention by simple temperature acquisition, can automatically adjust the revolving speed of compressor of air conditioner, make according to the actual situation
Compressor operating improves air-conditioner efficiency in preferable revolving speed;In the case where needing fast-refrigerating, refrigerating efficiency is promoted, is being made
In the lower situation of cooling capacity, the revolving speed of compressor of air conditioner is reduced.
Detailed description of the invention
Fig. 1 is flow chart of the method for the present invention.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and embodiments.
Fig. 1 is please referred to, the present invention provides a kind of compressor of air conditioner method for controlling number of revolution, which is characterized in that including following step
It is rapid:
Step S1: the tachometer value of compressor of air conditioner is arranged to N number of revolving speed gear, including the 1st revolving speed gear from low to high
To N revolving speed gear;N number of revolving speed regulation coefficient section is also set up, including the 1st revolving speed regulation coefficient section to N revolving speed adjusts
Coefficient section;The corresponding i-th revolving speed regulation coefficient section of i-th revolving speed gear and preset i-th rotational speed command value, wherein i, N are certainly
So number, and 1≤i≤N;The corresponding relationship of three please refers to the following table 1:
Table 1
As shown above, the i-th rotational speed command value is less than or equal to i+1 rotational speed command value, i.e. Vi-1≤Vi;1st revolving speed refers to
The V1 in the i.e. upper table of slow-speed of revolution threshold value Vmin that value is compressor of air conditioner, slow-speed of revolution threshold value Vmin is enabled to be not zero;N rotary speed instruction
Value is the VN in the i.e. upper table of high rotary speed threshold value Vmax of compressor of air conditioner.
Step S2: acquisition room temperature T in real timeIt is indoorWith outdoor unit temperature TOutdoor unit;
Step S3: the cryogenic temperature value T being arranged according to air-conditioningSET, the room temperature TIt is indoor, the setting of outdoor unit normal temperature
Value TStandardWith the outdoor unit temperature TOutdoor unit, calculate revolving speed regulation coefficient β:
Wherein, A+B=1 and A, B are the constant more than or equal to zero, A >=B;ΔT1The first temperature difference, Δ T for setting2
It is poor for the second temperature of setting, Δ T1For the constant greater than zero, Δ T2For the constant greater than zero;
Step S4: according to the revolving speed regulation coefficient β acquired determine it belonging to revolving speed regulation coefficient section, so that it is determined that right
The rotational speed command value answered;
Step S5: adjusting the current rotating speed value of compressor of air conditioner, and the rotational speed command value for determining it with step S4 is equal;Tool
Body adjustment process is as follows: the current rotating speed value of compressor of air conditioner being compared with the step S4 rotational speed command value determined, if working as
Preceding tachometer value is equal to the rotational speed command value that step S4 is determined, then keeps current rotating speed value constant;Otherwise it is controlled in next revolving speed
In period, the tachometer value of compressor of air conditioner is adjusted to the rotational speed command value determined to step S4.
It in this present embodiment, further include the temperature T of real-time detection compressor of air conditionerCompressor, when detecting compressor of air conditioner
Temperature TCompressorGreater than the temperature threshold T of settingmax, then within next revolving speed control period, by the determining rotary speed instruction of step S4
The corresponding revolving speed gear of value is at least one mobile to low level gear.
It in this present embodiment, further include as the temperature T for detecting compressor of air conditionerCompressorPersistently it is greater than temperature in time T
Threshold value Tmax, it is out of service to control compressor of air conditioner;Wherein, T is the time threshold of setting.
The room temperature TIt is indoorBy the average value of the collected temperature data of temperature sensor of several settings indoors.
In order to allow those skilled in the art to better understand technical solution of the present invention, below in conjunction with specific embodiment to this hair
It is bright to describe in detail.
Embodiment one:
The tachometer value of compressor of air conditioner is arranged to five revolving speed gears (N=5) from low to high, corresponding revolving speed adjustment
Coefficient section and rotational speed command value are also five, such as the following table 2:
Table 2
The rotational speed command value V of the corresponding compressor of air conditioner of (i-1)-th revolving speed geari-1It is corresponding less than or equal to the i-th revolving speed gear
The rotational speed command value V of compressor of air conditioneri, wherein i is natural number, and 2≤i≤5, N are the natural number more than or equal to 2.
In addition, room temperature TIt is indoorFor the room after three temperature sensors of 3 positions indoors carry out temperature acquisition is arranged
Interior average temperature value.
Embodiment two
The present embodiment, a kind of compressor of air conditioner method for controlling number of revolution, air-conditioning refrigeration system can be using the air-conditionings between column
Refrigeration, the acquisition of room temperature be column between air conditioner refrigerating region temperature acquisition.
The tachometer value of compressor of air conditioner is arranged to 7 revolving speed gears (N=7) from low to high, corresponding revolving speed adjustment
Coefficient section and rotational speed command value are also seven, such as the following table 3:
Table 3
The rotational speed command value V of the corresponding compressor of air conditioner of (i-1)-th revolving speed geari-1It is corresponding less than or equal to the i-th revolving speed gear
The rotational speed command value V of compressor of air conditioneri, wherein i is natural number, and 2≤i≤5, N are the natural number more than or equal to 2.
The cryogenic temperature value T of air-conditioning settingSETIt is 24 DEG C, outdoor unit normal temperature setting value TStandardIt is 45 DEG C,
A is 0.9, B 0.1, A+B=1, Δ T1The first temperature difference for setting is 10 DEG C, Δ T2For the second temperature of setting
Poor 95 DEG C, β1=0.1, β2=0.25, β3=0.45, β4=0.60, β5=0.75, β6=0.9.
The foregoing is merely presently preferred embodiments of the present invention, all equivalent changes done according to scope of the present invention patent with
Modification, is all covered by the present invention.