CN103968498B - Method for determining carrier frequency of variable frequency air conditioner and variable frequency air conditioner - Google Patents
Method for determining carrier frequency of variable frequency air conditioner and variable frequency air conditioner Download PDFInfo
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- CN103968498B CN103968498B CN201310039032.8A CN201310039032A CN103968498B CN 103968498 B CN103968498 B CN 103968498B CN 201310039032 A CN201310039032 A CN 201310039032A CN 103968498 B CN103968498 B CN 103968498B
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000004378 air conditioning Methods 0.000 claims description 21
- 238000012360 testing method Methods 0.000 claims description 16
- 238000005316 response function Methods 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 238000011056 performance test Methods 0.000 abstract 1
- 230000001133 acceleration Effects 0.000 description 2
- 238000007405 data analysis Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The invention discloses a method for determining the carrier frequency of a variable frequency air conditioner and the variable frequency air conditioner, wherein the method comprises the following steps: determining a carrier frequency range recommended by components of a frequency converter; determining the running frequency f of the compressor at the performance test point of the air conditioner according to the carrier frequency rangeiCorresponding carrier frequency f with highest energy efficiencyci(ii) a Determining carrier frequencies with lowest noise and highest energy efficiency respectively corresponding to the operating frequencies according to the recommended carrier frequency range and the selected operating frequencies to which the compressor can possibly operate; if the operating frequency f of the compressor isr≤fiThe carrier frequency is fci(ii) a If f isr＝f1The carrier frequency is fc1(ii) a If f isi＜fr＜f1Then the carrier frequency is at fciAnd fc1Linearly change between; and so on. The method of the invention also takes into accountThe energy efficiency and the noise are two special performances, so that the frequency conversion air conditioner can embody the energy efficiency to the maximum extent when operating at low frequency, and can ensure the low noise when operating at high frequency.
Description
Technical field
The present invention relates to air-conditioning technical field, particularly relate to a kind of side determining transducer air conditioning carrier frequency
Method and use the convertible frequency air-conditioner of this carrier frequency.
Background technology
At present, the carrier frequency that transducer air conditioning converter uses is all the carrier wave that converter manufacturer recommends
Frequency, is adjusted not according to on-the-spot practical situation.The carrier frequency that generally converter manufacturer recommends
Rate might not play the effectiveness of maximum on transducer air conditioning, simply can guarantee that it is properly functioning, so
Often due to arranging of carrier frequency may cause air conditioning system to be not reaching to more preferable efficiency, or specific
Frequency range produces bigger noise.
Summary of the invention
For above-mentioned prior art present situation, the technical problem to be solved is, it is provided that one determines
The method of transducer air conditioning carrier frequency, the method can take into account air-conditioning efficiency and noise.
Another technical problem to be solved by this invention is, it is provided that a kind of change using above-mentioned carrier frequency
Frequently air-conditioner.
In order to solve above-mentioned technical problem, provided by the present invention a kind of determine transducer air conditioning carrier frequency
Method, comprises the steps:
Determine the reference carrier frequency (f that the components and parts of converter are recommendedcmin, fcmax)；
According to the reference carrier frequency (f recommendedcmin, fcmax) determine the fortune of household air-conditioner test point compressor
Line frequency fiCarrier frequency f that corresponding efficiency is the highestci；
According to the reference carrier frequency (f recommendedcmin, fcmax) and the operation that may run to of selected compressor
Frequency f1, f2..., fn, determine running frequency f1, f2..., fnThe most corresponding noise is minimum, efficiency
The highest carrier frequency fc1, fc2..., fcn, wherein, f1＞ fi, f1＜ f2..., ＜ fn；
If running frequency f of compressorr≤fi, then carrier frequency is fci；If fr=f1, then carrier frequency
For fc1；If fi＜ fr＜ f1, then carrier frequency is at fciAnd fc1Between linear change；If fr=f2, then carry
Wave frequency is fc2；If f1＜ fr＜ f2, then carrier frequency is at fc1And fc2Between linear change, the like.
Wherein in an embodiment, determine described carrier frequency fciStep include: compressor run frequency
Rate fiDuring operation, at the reference carrier frequency (f recommendedcmin, fcmaxIn), with 0.5KHz stepping, test
The efficiency of air conditioner external, the carrier frequency of the highest correspondence of efficiency is described fci。
Wherein in an embodiment, determine described carrier frequency fc1, fc2..., fcnStep include: pressure
Contracting machine is in frequency f1During operation, at the reference carrier frequency (f recommendedcmin, fcmaxIn), walk with 0.5KHz
Enter, the noise P of the outer machine of testing air conditioner devicejWith efficiency Cj, take function Y=w1*Pj-w2*Cj, Y minimum institute is right
The carrier frequency answered is described fc1, the like；Wherein, w1And w2For weight coefficient.
Wherein in an embodiment, described method also comprises the steps: the frequency response function of test compression machine,
Carrier frequency corresponding to frequency response function maximum is not as carrier frequency.
A kind of transducer air conditioning provided by the present invention, including converter, the carrier frequency of described converter uses
Said method determines.
Compared with prior art, the method determining transducer air conditioning carrier frequency provided by the present invention, it is considered to
Reference carrier frequency, air-conditioning efficiency and three aspects of noise that components and parts are recommended, determine the load of convertible frequency air-conditioner
Wave frequency, has therefore taken into account efficiency and two properties of noise of transducer air conditioning so that transducer air conditioning
Efficiency can be embodied to greatest extent at low-frequency operation, and high frequency runs when, can guarantee that noise is low.And
And, high band uses high carrier frequency, and low-frequency range uses low carrier frequency, does not waste energy, it is ensured that system
Stable.
Accompanying drawing explanation
Fig. 1 is the carrier frequency variation trendgram determined by the method in one of them embodiment of the present invention；
Fig. 2 is compressor frequency receptance function test philosophy figure.
Detailed description of the invention
Below with reference to the accompanying drawings and in conjunction with the embodiments the present invention is described in detail.It should be noted that not
In the case of conflict, the feature in following embodiment and embodiment can be mutually combined.
The method determining transducer air conditioning carrier frequency provided by the present invention, considers first device of converter simultaneously
Reference carrier frequency, air-conditioning efficiency and three aspects of noise that part is recommended, determine the carrier frequency of convertible frequency air-conditioner
Rate, specifically comprises the following steps that
The first step, determines the reference carrier frequency (f that the components and parts of converter are recommendedcmin, fcmax), (fcmin,
fcmax) recommended by the manufacturer of the components and parts of converter.
Second step, according to the reference carrier frequency (f recommendedcmin, fcmax) determine that household air-conditioner test presses
Running frequency f of contracting machineiCarrier frequency f that corresponding efficiency is the highestci, described household air-conditioner test point
Middle efficiency point for seasonal energy efficiency test frequency.Concrete grammar is as follows: compressor is in running frequency fiDuring operation,
At the reference carrier frequency (f recommendedcmin, fcmaxIn), with 0.5KHz stepping, the outer machine of testing air conditioner device
Efficiency, the carrier frequency of the highest correspondence of efficiency is described fci。
3rd step, according to the reference carrier frequency (f recommendedcmin, fcmax) and selected compressor may run
Running frequency f arrived1, f2..., fn, determine running frequency f1, f2..., fnRespectively corresponding noise is
Carrier frequency f that low, efficiency is the highestc1, fc2..., fcn, wherein, f1＞ fi, f1＜ f2..., ＜ fn。
Concrete grammar is as follows: compressor is in frequency f1During operation, at the reference carrier frequency (f recommendedcmin, fcmax)
In, with 0.5KHz stepping, the noise P of the outer machine of testing air conditioner devicejWith efficiency Cj, take function Y=w1*Pj-w2*Cj,
Carrier frequency corresponding to Y minimum is described fc1, the like；Wherein, w1And w2For weight coefficient.
4th step, if running frequency f of compressorr≤fi, then carrier frequency is fci；If fr=f1, then
Carrier frequency is fc1；If fi＜ fr＜ f1, then carrier frequency is at fciAnd fc1Between linear change；If
fr=f2, then carrier frequency is fc2；If f1＜ fr＜ f2, then carrier frequency is at fc1And fc2Linearly become
Change, the like.
By the variation tendency of the carrier frequency obtained by the method for the embodiment of the present invention as it is shown in figure 1, wherein
Transverse axis represents the running frequency of compressor, and the longitudinal axis represents carrier frequency.From figure 1 it appears that frequency conversion is empty
Adjust device can embody efficiency to greatest extent at low-frequency operation, and high frequency runs when, can guarantee that noise is low.
Preferably, described method also comprise the steps: test compression machine at fciAnd fcjBetween carrier frequency
The frequency response function of rate, the carrier frequency corresponding to frequency response function maximum is not as carrier frequency, to avoid sending out
Raw resonance.The carrier frequency receptance function of the equipment test compression machine shown in Fig. 2 of employing, in this figure, 1 for adding
Velocity sensor, 2 hammer into shape for power, and 3 is data acquisition instrument, and 4 is data analysis instrument, and power hammer is excitation point,
Acceleration transducer is response point, and firmly hammer taps compressor, with the form collection of acceleration at response point,
Just the vibration shape of compressor can be showed by data acquisition instrument 3 and data analytical tool 4.
In another embodiment of the present invention, it is provided that a kind of transducer air conditioning, including converter, described converter
Carrier frequency adopt and determine with the aforedescribed process.Transducer air conditioning is owing to have employed above-mentioned carrier frequency so that
Transducer air conditioning can embody efficiency to greatest extent at low-frequency operation, and high frequency runs when, can guarantee that
Noise is low.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes more concrete and detailed,
But therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that, for this area
Those of ordinary skill for, without departing from the inventive concept of the premise, it is also possible to make some deformation and
Improving, these broadly fall into protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be with appended
Claim is as the criterion.
Claims (5)
1. the method determining transducer air conditioning carrier frequency, it is characterised in that comprise the steps:
Determine the reference carrier frequency (f that the components and parts of converter are recommendedcmin, fcmax)；
According to the reference carrier frequency (f recommendedcmin, fcmax) determine the fortune of household air-conditioner test point compressor
Line frequency fiCarrier frequency f that corresponding efficiency is the highestci；
According to the reference carrier frequency (f recommendedcmin, fcmax) and the operation that may run to of selected compressor
Frequency f1, f2..., fn, determine running frequency f1, f2..., fnThe most corresponding noise is minimum, efficiency
The highest carrier frequency fc1, fc2..., fcn, wherein, f1＞ fi, f1＜ f2..., ＜ fn；
If running frequency f of compressorr≤fi, then carrier frequency is fci；If fr=f1, then carrier frequency
For fc1；If fi＜ fr＜ f1, then carrier frequency is at fciAnd fc1Between linear change；If fr=f2, then carry
Wave frequency is fc2；If f1＜ fr＜ f2, then carrier frequency is at fc1And fc2Between linear change, the like.
Method the most according to claim 1, it is characterised in that determine described carrier frequency fciStep
Including: compressor is in running frequency fiDuring operation, at the reference carrier frequency (f recommendedcmin, fcmaxIn),
With 0.5KHz stepping, the efficiency of the outer machine of testing air conditioner device, the carrier frequency of the highest correspondence of efficiency is described fci。
Method the most according to claim 1, it is characterised in that determine described carrier frequency fc1, fc2...,
fcnStep include: compressor is in frequency f1During operation, at the reference carrier frequency (f recommendedcmin, fcmax)
In, with 0.5KHz stepping, the noise P of the outer machine of testing air conditioner devicejWith efficiency Cj, take function Y=w1*Pj-w2*Cj,
Carrier frequency corresponding to Y minimum is described fc1, the like；Wherein, w1And w2For weight coefficient.
The most according to the method in any one of claims 1 to 3, it is characterised in that also include walking as follows
Rapid: the frequency response function of test compression machine, the carrier frequency corresponding to frequency response function maximum is not as carrier frequency
Rate.
5. a transducer air conditioning, including converter, it is characterised in that the carrier frequency of described converter is adopted
Determine by the method as according to any one of Claims 1-4.
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| CN201310039032.8A CN103968498B (en) | 2013-01-31 | 2013-01-31 | Method for determining carrier frequency of variable frequency air conditioner and variable frequency air conditioner |
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| CN201310039032.8A CN103968498B (en) | 2013-01-31 | 2013-01-31 | Method for determining carrier frequency of variable frequency air conditioner and variable frequency air conditioner |
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| CN103968498B true CN103968498B (en) | 2016-09-14 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132429B (en) * | 2014-08-14 | 2017-06-30 | 珠海格力电器股份有限公司 | Control method, device and system of variable frequency air conditioner |
| CN108469139A (en) * | 2018-03-28 | 2018-08-31 | 广东美的暖通设备有限公司 | Control method, control system and the air conditioner of air conditioner carrier frequency |
| CN109059207B (en) * | 2018-06-14 | 2020-11-27 | 珠海格力电器股份有限公司 | Carrier frequency control method and device of air conditioning unit and variable frequency air conditioner |
| CN109405207B (en) * | 2018-10-10 | 2021-07-13 | 海信家电集团股份有限公司 | Energy-saving method and device for air conditioner |
| CN109510563B (en) * | 2018-11-08 | 2020-03-27 | 珠海格力电器股份有限公司 | Control method and system for suppressing motor current harmonic and storage medium |
| CN109883020B (en) * | 2018-12-29 | 2020-05-26 | 珠海格力电器股份有限公司 | Control method and device of air conditioner, storage medium and air conditioner |
| CN110986262A (en) * | 2019-11-15 | 2020-04-10 | 珠海格力电器股份有限公司 | Control method of variable frequency air conditioner, computer readable storage medium and air conditioner |
| CN111189106B (en) * | 2020-03-03 | 2024-05-24 | 青岛海尔空调器有限总公司 | Active noise reduction air conditioner and control method thereof |
| CN112880124A (en) * | 2021-01-21 | 2021-06-01 | 珠海格力电器股份有限公司 | Air conditioner control method and device, storage medium and air conditioner |
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| CN101287951A (en) * | 2005-10-31 | 2008-10-15 | 大金工业株式会社 | Refrigerator compressor operating method and refrigerator |
| CN102261717A (en) * | 2010-05-24 | 2011-11-30 | 珠海格力电器股份有限公司 | Air conditioner control method and device and air conditioner |
| CN102287891A (en) * | 2011-06-16 | 2011-12-21 | 广东美的电器股份有限公司 | Direct current convertible frequency air conditioner and control method thereof |
| CN102455037A (en) * | 2010-10-15 | 2012-05-16 | 日立空调·家用电器株式会社 | Air conditioner |
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| JP2011155719A (en) * | 2010-01-26 | 2011-08-11 | Panasonic Corp | Power conversion device and air conditioner equipped with the same |
| JP4879330B2 (en) * | 2010-02-05 | 2012-02-22 | 三菱電機株式会社 | Inverter control device for air conditioner |
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| CN101287951A (en) * | 2005-10-31 | 2008-10-15 | 大金工业株式会社 | Refrigerator compressor operating method and refrigerator |
| CN102261717A (en) * | 2010-05-24 | 2011-11-30 | 珠海格力电器股份有限公司 | Air conditioner control method and device and air conditioner |
| CN102455037A (en) * | 2010-10-15 | 2012-05-16 | 日立空调·家用电器株式会社 | Air conditioner |
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