CN105444352B - A kind of control method and device of air conditioner frequency - Google Patents

A kind of control method and device of air conditioner frequency Download PDF

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Publication number
CN105444352B
CN105444352B CN201510885089.9A CN201510885089A CN105444352B CN 105444352 B CN105444352 B CN 105444352B CN 201510885089 A CN201510885089 A CN 201510885089A CN 105444352 B CN105444352 B CN 105444352B
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air conditioner
coefficient
msub
numerical value
temperature
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CN105444352A (en
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田翔
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Gree Wuhan Electric Appliances Co Ltd
Gree Zhengzhou Electric Appliances Co Ltd
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Gree Electric Appliances Inc of Zhuhai
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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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • 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
    • F24F11/65—Electronic processing for selecting an operating mode

Abstract

The invention provides a kind of control method and device of air conditioner frequency, wherein, this method includes：According to the mode of operation of air conditioner, N number of temperature gap corresponding to air conditioner difference described in N number of sampling instant is determined；According to N number of temperature gap, the change function of the air conditioner frequency is established, the change function includes proportionality coefficient, integral coefficient and differential coefficient；According to the inner ring temperature and outer shroud temperature of the air conditioner, the numerical value of the proportionality coefficient, integral coefficient and differential coefficient is determined；According to the numerical value of the proportionality coefficient, integral coefficient and differential coefficient, the changing value of the air conditioner frequency is determined.A kind of control method of air conditioner frequency provided by the invention, can quickly adjust indoor temperature.

Description

A kind of control method and device of air conditioner frequency
Technical field
The present invention relates to technical field of automatic control, a kind of control method in particular to air conditioner frequency and Device.
Background technology
When air conditioner works, generally require to set a desired temperature value to air conditioner.Air conditioner meeting basis works as cup Interior real-time temperature values and the difference of the desired temperature value, change the frequency of compressor, so as to carry out room temperature control.
At present, when being controlled to air conditioner frequency, often using fuzzy arithmetic operation.Specifically, in the prior art The temperature difference that can be tested between indoor temperature and design temperature, and using the temperature difference as input 1, the variable quantity of indoor temperature is set to Input 2, using predetermined control rule and membership function, according to the input 1 and input 2, fuzzy arithmetic operation is performed, And in each predetermined time interval, the working frequency of compressor in air conditioner is controlled according to the operation result of the fuzzy arithmetic Amount of translation.That is, prior art is during air conditioner is run, indoor temperature is detected, and calculate the indoor temperature Variable quantity, when the variable quantity calculated exceedes predetermined value, the amount of translation of the working frequency of the compressor in air conditioner is added With control.
However, this method of the prior art has the defects of obvious：The controlling party of computing is carried out based on fuzzy arithmetic The shortcomings that method generally existing reaction speed is slow, air conditioner can be so caused to need to expend longer time, could be by indoor temperature Default temperature value is adjusted to, this will undoubtedly bring bad Consumer's Experience.
In view of the above-mentioned problems, not yet propose to efficiently solve mode at present.
The content of the invention
The embodiments of the invention provide a kind of control method of air conditioner frequency, indoor temperature can be quickly adjusted to reach Purpose, this method includes：
According to the mode of operation of air conditioner, N number of temperature gap corresponding to air conditioner difference described in N number of sampling instant, N are determined For the integer more than or equal to 2；
According to N number of temperature gap, establish the change function of the air conditioner frequency, the change function include than Example coefficient, integral coefficient and differential coefficient；
According to the inner ring temperature and outer shroud temperature of the air conditioner, the proportionality coefficient, integral coefficient and micro- are determined Divide the numerical value of coefficient；
According to the numerical value of the proportionality coefficient, integral coefficient and differential coefficient, the change of the air conditioner frequency is determined Value.
In one embodiment, according to the mode of operation of air conditioner, determine that air conditioner described in N number of sampling instant is right respectively The N number of temperature gap answered specifically includes：When the mode of operation of air conditioner is refrigeration mode, N number of adopt is determined according to the following equation N number of temperature gap corresponding to air conditioner difference described in the sample moment：
Δ T [i]=T [i]-Tset
When the mode of operation of air conditioner is heating mode, air conditioner described in N number of sampling instant is determined according to the following equation N number of temperature gap corresponding to respectively：
Δ T [i]=Tset-T[i]
Wherein, Δ T [i] represents temperature gap corresponding to air conditioner described in the ith sample moment, and T [i] represents i-th and adopted Inner ring temperature, T corresponding to air conditioner described in the sample momentsetRepresent the temperature of the air conditioner setting.
In one embodiment, the air conditioner frequency is established according to N number of temperature gap according to the following equation Change function：
Wherein, Δ F [i] represents the change function of air conditioner frequency described in the ith sample moment, ToRepresent sampling period, KP Represent the proportionality coefficient, KIRepresent the integral coefficient, KDRepresent the differential coefficient.
In one embodiment, the inner ring temperature and outer shroud temperature according to the air conditioner, determines the ratio The numerical value of example coefficient, integral coefficient and differential coefficient specifically includes：The separate interval and outer shroud of division inner ring temperature in advance The separate interval of temperature；Determine the outer shroud of the first separate interval and the air conditioner residing for the inner ring temperature of the air conditioner The second separate interval residing for temperature；Will be with first separate interval and second separate interval while corresponding ratio system Number numerical value is defined as the numerical value of proportionality coefficient in the change function；Will be with first separate interval and second marker space Between simultaneously corresponding to integral coefficient numerical value be defined as it is described change function in integral coefficient numerical value；Will be with first marker space Between and second separate interval simultaneously corresponding to differential coefficient numerical value be defined as it is described change function in differential coefficient numerical value.
In one embodiment, the numerical value according to the proportionality coefficient, integral coefficient and differential coefficient, it is determined that The changing value of the air conditioner frequency specifically includes：Determine the number of sampling instant to be calculated；According to the proportionality coefficient, product Divide the numerical value of coefficient and differential coefficient, determine the changing value of the air conditioner frequency according to the following equation：
Wherein, Δ F [i] represents the changing value of air conditioner frequency described in the ith sample moment, KP[m, n] represents the ratio The numerical value of example coefficient, KI[m, n] represents the numerical value of the integral coefficient, KD[m, n] represents the numerical value of the differential coefficient, ToGeneration Table sampling period, Δ T [i] represent temperature gap corresponding to air conditioner described in the ith sample moment, and M represents the described of determination and treated The number of the sampling instant of calculating, M are the integer more than or equal to 1.
The embodiment of the present invention additionally provides a kind of control device of air conditioner frequency, and Indoor Temperature can be quickly adjusted to reach The purpose of degree, the device include：
Temperature gap determining unit, for the mode of operation according to air conditioner, determine air conditioner described in N number of sampling instant point Not corresponding N number of temperature gap, N are the integer more than or equal to 2；
Frequency change function establishes unit, for according to N number of temperature gap, establishing the change of the air conditioner frequency Function, the change function include proportionality coefficient, integral coefficient and differential coefficient；
Factor v determining unit, for the inner ring temperature and outer shroud temperature according to the air conditioner, determine the ratio The numerical value of example coefficient, integral coefficient and differential coefficient；
Frequency change determining unit, for the numerical value according to the proportionality coefficient, integral coefficient and differential coefficient, really The changing value of the fixed air conditioner frequency.
In one embodiment, the temperature gap determining unit specifically includes：First determining module, for working as air-conditioning When the mode of operation of device is refrigeration mode, N number of temperature corresponding to air conditioner difference described in N number of sampling instant is determined according to the following equation Spend difference：
Δ T [i]=T [i]-Tset
Second determining module, for when the mode of operation of air conditioner is heating mode, determining N number of adopt according to the following equation N number of temperature gap corresponding to air conditioner difference described in the sample moment：
Δ T [i]=Tset-T[i]
Wherein, Δ T [i] represents temperature gap corresponding to air conditioner described in the ith sample moment, and T [i] represents i-th and adopted Inner ring temperature, T corresponding to air conditioner described in the sample momentsetRepresent the temperature of the air conditioner setting.
In one embodiment, the frequency change function is established unit and specifically included：Formula establishes module, for by According to following formula according to N number of temperature gap, the change function of the air conditioner frequency is established：
Wherein, Δ F [i] represents the change function of air conditioner frequency described in the ith sample moment, ToRepresent sampling period, KP Represent the proportionality coefficient, KIRepresent the integral coefficient, KDRepresent the differential coefficient.
In one embodiment, the factor v determining unit specifically includes：Separate interval division module, for pre- First divide the separate interval of inner ring temperature and the separate interval of outer shroud temperature；Separate interval determining module, for described in determination The first separate interval residing for the inner ring temperature of air conditioner and the second separate interval residing for the outer shroud temperature of the air conditioner； Scaling factor v determining module, for will be with first separate interval and second separate interval corresponding ratio simultaneously Factor v is defined as the numerical value of proportionality coefficient in the change function；Integral coefficient numerical value determining module, for will with it is described Corresponding integral coefficient numerical value is defined as integrating in the change function simultaneously for first separate interval and second separate interval The numerical value of coefficient；Differential coefficient numerical value determining module, for will be same with first separate interval and second separate interval When corresponding differential coefficient numerical value be defined as it is described change function in differential coefficient numerical value.
In one embodiment, the frequency change determining unit specifically includes：Sampling instant number determining module, For determining the number of sampling instant to be calculated；Computing module, for according to the proportionality coefficient, integral coefficient and differential The numerical value of coefficient, the changing value of the air conditioner frequency is determined according to the following equation：
Wherein, Δ F [i] represents the changing value of air conditioner frequency described in the ith sample moment, KP[m, n] represents the ratio The numerical value of example coefficient, KI[m, n] represents the numerical value of the integral coefficient, KD[m, n] represents the numerical value of the differential coefficient, ToGeneration Table sampling period, Δ T [i] represent temperature gap corresponding to air conditioner described in the ith sample moment, and M represents the described of determination and treated The number of the sampling instant of calculating, M are the integer more than or equal to 1.
According to a kind of control method and device of air conditioner frequency of the present invention, by by fuzzy arithmetic and PID control side Method is combined, and the function of air conditioner frequency change is constructed using PID control method, and then obtains air conditioner by fuzzy arithmetic The numerical value of proportionality coefficient, integral coefficient and differential coefficient in the function of frequency change, so as to determine air conditioner frequency The changing value of rate.A kind of control method and device of air conditioner frequency provided by the invention are not only fuzzyyer than of the prior art Arithmetic operation method is fast, and the scope of application is wider, and temperature controlled precision is also higher.
Brief description of the drawings
The accompanying drawing for forming the part of the application is used for providing a further understanding of the present invention, schematic reality of the invention Apply example and its illustrate to be used to explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is a kind of method flow diagram for air conditioner FREQUENCY CONTROL that the embodiment of the present application provides；
Fig. 2 is a kind of apparatus function module map for air conditioner FREQUENCY CONTROL that the embodiment of the present application provides.
Embodiment
In order that those skilled in the art more fully understand the technical scheme in the application, it is real below in conjunction with the application The accompanying drawing in example is applied, the technical scheme in the embodiment of the present application is clearly and completely described, it is clear that described implementation Example only some embodiments of the present application, rather than whole embodiments.It is common based on the embodiment in the application, this area All other embodiment that technical staff is obtained under the premise of creative work is not made, it should all belong to the application protection Scope.
Fig. 1 is a kind of method flow diagram for air conditioner FREQUENCY CONTROL that the embodiment of the present application provides.Although stream is described below Journey include with particular order occur multiple operations, but it should be clearly understood that these processes can include it is more or less Operation, these operations sequentially can be performed or performed parallel (such as using parallel processor or multi-thread environment).Such as Fig. 1 institutes Show, the control method of the air conditioner frequency can include：
S1：According to the mode of operation of air conditioner, N number of temperature difference corresponding to air conditioner difference described in N number of sampling instant is determined Value, N are the integer more than or equal to 2.
In the embodiment of the present application, the real time temperature of air conditioner can be sampled, every time according to the default sampling period Sampling may correspond to a sampling instant.In the embodiment of the present application, of the sampling instant can be represented with N Number, N are the integer more than or equal to 2.Interval between each two sampling instant can think the described default sampling period.
The embodiment of the present application can be controlled by the way of feedback to the temperature of air conditioner.That is, the application Embodiment can calculate the temperature gap between each sampling instant real time temperature and preset temperature, and be based on the temperature gap Real time temperature is adjusted, to cause real time temperature close to preset temperature.
Because with the change of working mode of air-conditioner, the mode that temperature gap is calculated in the embodiment of the present application also can be therewith Change, therefore the mode of operation of air conditioner can be preferentially determined in the embodiment of the present application.Specifically, the mode of operation can be with It is divided into two classes of heating and refrigeration.When the mode of operation of air conditioner is refrigeration mode, N number of sampling can be determined according to the following equation N number of temperature gap corresponding to air conditioner difference described in moment：
Δ T [i]=T [i]-Tset
When the mode of operation of air conditioner is heating mode, air conditioner described in N number of sampling instant is determined according to the following equation N number of temperature gap corresponding to respectively：
Δ T [i]=Tset-T[i]
Wherein, Δ T [i] represents temperature gap corresponding to air conditioner described in the ith sample moment, and T [i] represents i-th and adopted Inner ring temperature, T corresponding to air conditioner described in the sample momentsetRepresent the temperature of the air conditioner setting.
S2：According to N number of temperature gap, the change function of the air conditioner frequency is established, is wrapped in the change function Include proportionality coefficient, integral coefficient and differential coefficient.
In the embodiment of the present application, pid control algorithm can be based on, according to the N number of temperature gap determined in step S1, is built Found the change function of the air conditioner frequency.Pid control algorithm is the control algolithm of a closed loop, can utilize the temperature of feedback Real time temperature is adjusted difference.Proportionality coefficient, integral coefficient and differential system in the pid control algorithm often be present Number, wherein, the current deviation that the proportionality coefficient can be adjusted with reaction temperature, the proportionality coefficient is bigger, and the speed of regulation is just It is faster, but the stability that larger proportionality coefficient frequently can lead to regulation flow process declines；The integral coefficient can react temperature Spend the cumulative departure of regulation so that regulation process eliminates steady-state error；The differential coefficient can reflect the moment of temperature adjustment Change, can appreciate that the trend of change of error, so as to also be corrected in time without before being formed in deviation, but the differential Coefficient often has amplification to noise jamming, therefore can reduce the interference free performance of regulation flow process.The embodiment of the present application is led to The proportionality coefficient, integral coefficient and differential coefficient is crossed to jointly control, so as to accelerate the course of reaction of temperature adjustment, drop Time needed for low temperature regulation.
The embodiment of the present application can establish the air conditioner frequency according to the following equation according to N number of temperature gap Change function：
Wherein, Δ F [i] represents the change function of air conditioner frequency described in the ith sample moment, ToRepresent sampling period, KP Represent the proportionality coefficient, KIRepresent the integral coefficient, KDRepresent the differential coefficient.
In traditional pid control algorithm, because the determination of proportionality coefficient, integral coefficient and differential coefficient is more complicated, Therefore the applicability of traditional pid control algorithm is relatively low.And in the change function for the air conditioner frequency that the embodiment of the present application is established Proportionality coefficient, integral coefficient and differential coefficient can be determined by fuzzy algorithmic approach, so as to strengthen the technical scheme Applicability.The tool that the proportionality coefficient, integral coefficient and differential coefficient how are determined by fuzzy algorithmic approach is described below Body numerical value.
S3：According to the inner ring temperature and outer shroud temperature of the air conditioner, determine the proportionality coefficient, integral coefficient and The numerical value of differential coefficient.
In the embodiment of the present application, with the progress of FREQUENCY CONTROL flow, the inner ring temperature and outer circumstance temperature of the air conditioner Degree also constantly changing, the embodiment of the present application can based on the air conditioner current inner ring temperature and outer shroud temperature, it is determined that Go out the numerical value of the proportionality coefficient, integral coefficient and differential coefficient.Specifically, the embodiment of the present application can divide inner ring in advance The separate interval of temperature and the separate interval of outer shroud temperature.For example, the separate interval of inner ring temperature can be divided into：(-∞, Tin1], (Tin1,Tin2] ..., (Tin(k-1),+∞), similarly, the separate interval of outer shroud temperature can be divided into：(-∞,Tout1], (Tout1,Tout2] ..., (Tout(k-1),+∞), it can specifically represent as was the case with table 1：
The separate interval of the inner ring temperature of table 1 and outer shroud temperature
(-∞,Tin1] (Tin1,Tin2] … (Tin(k-1),+∞)
(-∞,Tout1] KP/KI/KD[1,1] KP/KI/KD[2,1] … KP/KI/KD[k,1]
(Tout1,Tout2] KP/KI/KD[1,2] KP/KI/KD[2,2] … KP/KI/KD[k,2]
… … … … …
(Tout(k-1),+∞) KP/KI/KD[1,k-1] KP/KI/KD[2,k-1] … KP/KI/KD[k,k]
As shown in table 1, the inner ring temperature after demarcation interval and outer shroud temperature are located at the first row and first row of table 1 respectively, Meanwhile it correspond to one group of proportionality coefficient, integral coefficient and differential with each inner ring temperature range and outer shroud temperature range The numerical value of coefficient.For example, proportionality coefficient, integral coefficient and differential coefficient numerical value in the second row secondary series of table 1 can be with It is expressed as KP[1,1], KI[1,1] and KD[1,1], similarly, the proportionality coefficient of the third line secondary series of table 1, integral coefficient and Differential coefficient numerical value can be expressed as KP[1,2], KI[1,2] and KD[1,2]。
So, the embodiment of the present application can be according to the inner ring temperature and outer shroud temperature of current air conditioner respectively residing the One separate interval and the second separate interval, will be with first separate interval and second separate interval while corresponding ratio Example factor v is defined as the numerical value of proportionality coefficient in the change function, meanwhile, will be with first separate interval and described Second separate interval simultaneously corresponding to integral coefficient numerical value be defined as the numerical value of integral coefficient in the change function and will be with Corresponding differential coefficient numerical value is defined as in the change function simultaneously for first separate interval and second separate interval The numerical value of differential coefficient.For example, the first separate interval residing for the inner ring temperature of current air conditioner is (Tin1,Tin2], outer circumstance temperature The second residing separate interval of degree is (- ∞, Tout1], then first separate interval and second separate interval are simultaneously right The scaling factor v answered is KP[2,1], integral coefficient numerical value are KI[2,1], differential coefficient numerical value are KD[2,1], then To determine scaling factor v, integral coefficient numerical value and differential coefficient number in the change function of the air conditioner frequency Value.
S4：According to the numerical value of the proportionality coefficient, integral coefficient and differential coefficient, the change of the air conditioner frequency is determined Change value.
, can be with according in step S2 after the numerical value of the proportionality coefficient, integral coefficient and differential coefficient is determined The frequency change function of foundation, determine the changing value of the air conditioner frequency.Specifically, because the frequency changes in function It is related to integration summation operation, therefore the embodiment of the present application can determine the number of sampling instant to be calculated, such as the number can Think 6, then the integration summation operation can be with summation 6 times.Specifically, the embodiment of the present application can be according to the ratio system The numerical value of number, integral coefficient and differential coefficient, the changing value of the air conditioner frequency is determined according to the following equation：
Wherein, Δ F [i] represents the changing value of air conditioner frequency described in the ith sample moment, KP[m, n] represents the ratio The numerical value of example coefficient, KI[m, n] represents the numerical value of the integral coefficient, KD[m, n] represents the numerical value of the differential coefficient, ToGeneration Table sampling period, Δ T [i] represent temperature gap corresponding to air conditioner described in the ith sample moment, and M represents the described of determination and treated The number of the sampling instant of calculating, M are the integer more than or equal to 1.
So, can to determine the changing value of some sampling instant frequency, so as to the changing value according to the frequency, The control to temperature is converted into, to cause real time temperature to level off to the temperature of setting.
As can be seen from the above description, the above embodiments of the present invention realize following technique effect：
By the way that fuzzy arithmetic is combined with PID control method, the change of air conditioner frequency is constructed using PID control method Function, and then pass through fuzzy arithmetic and obtain proportionality coefficient, integral coefficient and differential in the function that air conditioner frequency changes The numerical value of coefficient, so as to determine the changing value of air conditioner frequency.A kind of control of air conditioner frequency provided by the invention Method and device, it is not only faster than fuzzy arithmetic operation method of the prior art, and also the scope of application is wider, temperature controlled essence Degree is also higher.
The embodiment of the present application also provides a kind of control device of air conditioner frequency.Fig. 2 is one that the embodiment of the present application provides The apparatus function module map of kind air conditioner FREQUENCY CONTROL.As shown in Fig. 2 the control device of the air conditioner frequency includes：
Temperature gap determining unit 100, for the mode of operation according to air conditioner, determine air-conditioning described in N number of sampling instant N number of temperature gap corresponding to device difference, N are the integer more than or equal to 2；
Frequency change function establishes unit 200, for according to N number of temperature gap, establishing the air conditioner frequency Change function, the change function includes proportionality coefficient, integral coefficient and differential coefficient；
Factor v determining unit 300, for the inner ring temperature and outer shroud temperature according to the air conditioner, it is determined that described The numerical value of proportionality coefficient, integral coefficient and differential coefficient；
Frequency change determining unit 400, for the number according to the proportionality coefficient, integral coefficient and differential coefficient Value, determine the changing value of the air conditioner frequency.
In the preferred embodiment of the application one, the temperature gap determining unit 100 specifically includes：
First determining module, for when the mode of operation of air conditioner is refrigeration mode, determining N number of adopt according to the following equation N number of temperature gap corresponding to air conditioner difference described in the sample moment：
Δ T [i]=T [i]-Tset
Second determining module, for when the mode of operation of air conditioner is heating mode, determining N number of adopt according to the following equation N number of temperature gap corresponding to air conditioner difference described in the sample moment：
Δ T [i]=Tset-T[i]
Wherein, Δ T [i] represents temperature gap corresponding to air conditioner described in the ith sample moment, and T [i] represents i-th and adopted Inner ring temperature, T corresponding to air conditioner described in the sample momentsetRepresent the temperature of the air conditioner setting.
In another preferred embodiment of the application, the frequency change function is established unit 200 and specifically included：
Formula establishes module, for according to N number of temperature gap, establishing the air conditioner frequency according to the following equation Change function：
Wherein, Δ F [i] represents the change function of air conditioner frequency described in the ith sample moment, ToRepresent sampling period, KP Represent the proportionality coefficient, KIRepresent the integral coefficient, KDRepresent the differential coefficient.
In another preferred embodiment of the application, the factor v determining unit 300 specifically includes：
Separate interval division module, for dividing the separate interval of inner ring temperature and the marker space of outer shroud temperature in advance Between；
Separate interval determining module, for determining the first separate interval residing for the inner ring temperature of the air conditioner and institute State the second separate interval residing for the outer shroud temperature of air conditioner；
Scaling factor v determining module, for will be simultaneously right with first separate interval and second separate interval The scaling factor v answered is defined as the numerical value of proportionality coefficient in the change function；
Integral coefficient numerical value determining module, for will be simultaneously right with first separate interval and second separate interval The integral coefficient numerical value answered is defined as the numerical value of integral coefficient in the change function；
Differential coefficient numerical value determining module, for will be simultaneously right with first separate interval and second separate interval The differential coefficient numerical value answered is defined as the numerical value of differential coefficient in the change function.
In another preferred embodiment of the application, the frequency change determining unit 400 specifically includes：
Sampling instant number determining module, for determining the number of sampling instant to be calculated；
Computing module, for the numerical value according to the proportionality coefficient, integral coefficient and differential coefficient, according to the following equation Determine the changing value of the air conditioner frequency：
Wherein, Δ F [i] represents the changing value of air conditioner frequency described in the ith sample moment, KP[m, n] represents the ratio The numerical value of example coefficient, KI[m, n] represents the numerical value of the integral coefficient, KD[m, n] represents the numerical value of the differential coefficient, ToGeneration Table sampling period, Δ T [i] represent temperature gap corresponding to air conditioner described in the ith sample moment, and M represents the described of determination and treated The number of the sampling instant of calculating, M are the integer more than or equal to 1.
The implementation process of above-mentioned each functional module and step S1 are similar into S4, just repeat no more here.
As can be seen from the above description, the embodiment of the present invention realizes following technique effect：By by fuzzy arithmetic It is combined with PID control method, the function of air conditioner frequency change is constructed using PID control method, and then calculate by fuzzy The numerical value of proportionality coefficient, integral coefficient and differential coefficient in the function of art acquisition air conditioner frequency change, so as to true Make the changing value of air conditioner frequency.The control method and device of a kind of air conditioner frequency provided by the invention, not only than existing Fuzzy arithmetic operation method in technology is fast, and the scope of application is wider, and temperature controlled precision is also higher.
Obviously, those skilled in the art should be understood that each module of the above-mentioned embodiment of the present invention or each step can be with Realized with general computing device, they can be concentrated on single computing device, or are distributed in multiple computing devices On the network formed, alternatively, they can be realized with the program code that computing device can perform, it is thus possible to by it Store and performed in the storage device by computing device, and in some cases, can be to be held different from order herein They, are either fabricated to each integrated circuit modules or will be multiple in them by the shown or described step of row respectively Module or step are fabricated to single integrated circuit module to realize.So, the embodiment of the present invention is not restricted to any specific hard Part and software combine.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area For art personnel, the embodiment of the present invention can have various modifications and variations.Within the spirit and principles of the invention, made Any modification, equivalent substitution and improvements etc., should be included in the scope of the protection.

Claims (8)

  1. A kind of 1. control method of air conditioner frequency, it is characterised in that including：
    According to the mode of operation of air conditioner, N number of temperature gap corresponding to air conditioner difference described in N number of sampling instant is determined, N is big In the integer equal to 2；
    According to N number of temperature gap, the change function of the air conditioner frequency is established, the change function includes ratio system Number, integral coefficient and differential coefficient；
    According to the inner ring temperature and outer shroud temperature of the air conditioner, the proportionality coefficient, integral coefficient and differential system are determined Several numerical value, including：The separate interval of the separate interval of division inner ring temperature and outer shroud temperature in advance；Determine the air conditioner Inner ring temperature residing for the first separate interval and the air conditioner outer shroud temperature residing for the second separate interval；Will with institute Stating the first separate interval and second separate interval, corresponding scaling factor v is defined as comparing in the change function simultaneously The numerical value of example coefficient；Will be with first separate interval and second separate interval corresponding integral coefficient numerical value determination simultaneously For the numerical value of integral coefficient in the change function；Will be simultaneously corresponding with first separate interval and second separate interval Differential coefficient numerical value be defined as it is described change function in differential coefficient numerical value；
    According to the numerical value of the proportionality coefficient, integral coefficient and differential coefficient, the changing value of the air conditioner frequency is determined.
  2. 2. the method as described in claim 1, it is characterised in that according to the mode of operation of air conditioner, determine N number of sampling instant institute Stating air conditioner, corresponding N number of temperature gap specifically includes respectively：
    When the mode of operation of air conditioner is refrigeration mode, determine that air conditioner described in N number of sampling instant is distinguished according to the following equation Corresponding N number of temperature gap：
    Δ T [i]=T [i]-Tset
    When the mode of operation of air conditioner is heating mode, determine that air conditioner described in N number of sampling instant is distinguished according to the following equation Corresponding N number of temperature gap：
    Δ T [i]=Tset-T[i]
    Wherein, Δ T [i] represents temperature gap corresponding to air conditioner described in the ith sample moment, when T [i] represents ith sample Carve inner ring temperature, T corresponding to the air conditionersetRepresent the temperature of the air conditioner setting.
  3. 3. method as claimed in claim 2, it is characterised in that according to the following equation according to N number of temperature gap, establish institute State the change function of air conditioner frequency：
    <mrow> <mi>&amp;Delta;</mi> <mi>F</mi> <mo>&amp;lsqb;</mo> <mi>i</mi> <mo>&amp;rsqb;</mo> <mo>=</mo> <msub> <mi>K</mi> <mi>P</mi> </msub> <mo>&amp;times;</mo> <mi>&amp;Delta;</mi> <mi>T</mi> <mo>&amp;lsqb;</mo> <mi>i</mi> <mo>&amp;rsqb;</mo> <mo>+</mo> <msub> <mi>K</mi> <mi>I</mi> </msub> <mo>&amp;times;</mo> <msub> <mi>T</mi> <mi>o</mi> </msub> <mo>&amp;times;</mo> <munderover> <mo>&amp;Sigma;</mo> <mrow> <mi>j</mi> <mo>=</mo> <mn>0</mn> </mrow> <mi>i</mi> </munderover> <mi>&amp;Delta;</mi> <mi>T</mi> <mo>&amp;lsqb;</mo> <mi>j</mi> <mo>&amp;rsqb;</mo> <mo>+</mo> <msub> <mi>K</mi> <mi>D</mi> </msub> <mo>&amp;times;</mo> <mrow> <mo>(</mo> <mi>&amp;Delta;</mi> <mi>T</mi> <mo>&amp;lsqb;</mo> <mi>i</mi> <mo>&amp;rsqb;</mo> <mo>-</mo> <mi>&amp;Delta;</mi> <mi>T</mi> <mo>&amp;lsqb;</mo> <mi>i</mi> <mo>-</mo> <mn>1</mn> <mo>&amp;rsqb;</mo> <mo>)</mo> </mrow> </mrow>
    Wherein, Δ F [i] represents the change function of air conditioner frequency described in the ith sample moment, ToRepresent sampling period, KPRepresent The proportionality coefficient, KIRepresent the integral coefficient, KDRepresent the differential coefficient.
  4. 4. the method as described in claim 1, it is characterised in that described according to the proportionality coefficient, integral coefficient and differential The numerical value of coefficient, determine that the changing value of the air conditioner frequency specifically includes：
    Determine the number of sampling instant to be calculated；
    According to the numerical value of the proportionality coefficient, integral coefficient and differential coefficient, the air conditioner frequency is determined according to the following equation The changing value of rate：
    <mrow> <mi>&amp;Delta;</mi> <mi>F</mi> <mo>&amp;lsqb;</mo> <mi>i</mi> <mo>&amp;rsqb;</mo> <mo>=</mo> <msub> <mi>K</mi> <mi>P</mi> </msub> <mo>&amp;lsqb;</mo> <mi>m</mi> <mo>,</mo> <mi>n</mi> <mo>&amp;rsqb;</mo> <mo>&amp;times;</mo> <mi>&amp;Delta;</mi> <mi>T</mi> <mo>&amp;lsqb;</mo> <mi>i</mi> <mo>&amp;rsqb;</mo> <mo>+</mo> <msub> <mi>K</mi> <mi>I</mi> </msub> <mo>&amp;lsqb;</mo> <mi>m</mi> <mo>,</mo> <mi>n</mi> <mo>&amp;rsqb;</mo> <mo>&amp;times;</mo> <msub> <mi>T</mi> <mn>0</mn> </msub> <mo>&amp;times;</mo> <munderover> <mo>&amp;Sigma;</mo> <mrow> <mi>j</mi> <mo>=</mo> <mn>0</mn> </mrow> <mrow> <mi>M</mi> <mo>-</mo> <mn>1</mn> </mrow> </munderover> <mi>&amp;Delta;</mi> <mi>T</mi> <mo>&amp;lsqb;</mo> <mi>i</mi> <mo>-</mo> <mi>j</mi> <mo>&amp;rsqb;</mo> <mo>+</mo> <msub> <mi>K</mi> <mi>D</mi> </msub> <mo>&amp;lsqb;</mo> <mi>m</mi> <mo>,</mo> <mi>n</mi> <mo>&amp;rsqb;</mo> <mo>&amp;times;</mo> <mrow> <mo>(</mo> <mi>&amp;Delta;</mi> <mi>T</mi> <mo>&amp;lsqb;</mo> <mi>i</mi> <mo>&amp;rsqb;</mo> <mo>-</mo> <mi>&amp;Delta;</mi> <mi>T</mi> <mo>&amp;lsqb;</mo> <mi>i</mi> <mo>-</mo> <mn>1</mn> <mo>&amp;rsqb;</mo> <mo>)</mo> </mrow> </mrow>
    Wherein, Δ F [i] represents the changing value of air conditioner frequency described in the ith sample moment, KP[m, n] represents the proportionality coefficient Numerical value, KI[m, n] represents the numerical value of the integral coefficient, KD[m, n] represents the numerical value of the differential coefficient, ToRepresent sampling Cycle, Δ T [i] represent temperature gap corresponding to air conditioner described in the ith sample moment, and M represents the described to be calculated of determination The number of sampling instant, M are the integer more than or equal to 1.
  5. A kind of 5. control device of air conditioner frequency, it is characterised in that including：
    Temperature gap determining unit, for the mode of operation according to air conditioner, determine that air conditioner described in N number of sampling instant is right respectively The N number of temperature gap answered, N are the integer more than or equal to 2；
    Frequency change function establishes unit, for according to N number of temperature gap, establishing the change letter of the air conditioner frequency Number, the change function include proportionality coefficient, integral coefficient and differential coefficient；
    Factor v determining unit, for the inner ring temperature and outer shroud temperature according to the air conditioner, determine the ratio system The numerical value of number, integral coefficient and differential coefficient, including：Separate interval division module, for dividing point of inner ring temperature in advance Between septal area and outer shroud temperature separate interval；Separate interval determining module, for determining the inner ring temperature institute of the air conditioner The second separate interval residing for first separate interval at place and the outer shroud temperature of the air conditioner；Scaling factor v determines mould Block, for will be with first separate interval and second separate interval described in corresponding scaling factor v is defined as simultaneously Change the numerical value of proportionality coefficient in function；Integral coefficient numerical value determining module, for will be with first separate interval and described Corresponding integral coefficient numerical value is defined as the numerical value for changing integral coefficient in function to second separate interval simultaneously；Differential coefficient Numerical value determining module, for will be with first separate interval and second separate interval corresponding differential coefficient numerical value simultaneously It is defined as the numerical value of differential coefficient in the change function；
    Frequency change determining unit, for the numerical value according to the proportionality coefficient, integral coefficient and differential coefficient, determine institute State the changing value of air conditioner frequency.
  6. 6. device as claimed in claim 5, it is characterised in that the temperature gap determining unit specifically includes：
    First determining module, for when the mode of operation of air conditioner is refrigeration mode, when determining N number of sampling according to the following equation Carve N number of temperature gap corresponding to the air conditioner difference：
    Δ T [i]=T [i]-Tset
    Second determining module, for when the mode of operation of air conditioner is heating mode, when determining N number of sampling according to the following equation Carve N number of temperature gap corresponding to the air conditioner difference：
    Δ T [i]=Tset-T[i]
    Wherein, Δ T [i] represents temperature gap corresponding to air conditioner described in the ith sample moment, when T [i] represents ith sample Carve inner ring temperature, T corresponding to the air conditionersetRepresent the temperature of the air conditioner setting.
  7. 7. device as claimed in claim 6, it is characterised in that the frequency change function is established unit and specifically included：
    Formula establishes module, for according to N number of temperature gap, establishing the change of the air conditioner frequency according to the following equation Function：
    <mrow> <mi>&amp;Delta;</mi> <mi>F</mi> <mo>&amp;lsqb;</mo> <mi>i</mi> <mo>&amp;rsqb;</mo> <mo>=</mo> <msub> <mi>K</mi> <mi>p</mi> </msub> <mo>&amp;times;</mo> <mi>&amp;Delta;</mi> <mi>T</mi> <mo>&amp;lsqb;</mo> <mi>i</mi> <mo>&amp;rsqb;</mo> <mo>+</mo> <msub> <mi>K</mi> <mi>I</mi> </msub> <mo>&amp;times;</mo> <msub> <mi>T</mi> <mi>o</mi> </msub> <mo>&amp;times;</mo> <munderover> <mo>&amp;Sigma;</mo> <mrow> <mi>j</mi> <mo>=</mo> <mn>0</mn> </mrow> <mi>i</mi> </munderover> <mi>&amp;Delta;</mi> <mi>T</mi> <mo>&amp;lsqb;</mo> <mi>j</mi> <mo>&amp;rsqb;</mo> <mo>+</mo> <msub> <mi>K</mi> <mi>D</mi> </msub> <mo>&amp;times;</mo> <mrow> <mo>(</mo> <mi>&amp;Delta;</mi> <mi>T</mi> <mo>&amp;lsqb;</mo> <mi>i</mi> <mo>&amp;rsqb;</mo> <mo>-</mo> <mi>&amp;Delta;</mi> <mi>T</mi> <mo>&amp;lsqb;</mo> <mi>i</mi> <mo>-</mo> <mn>1</mn> <mo>&amp;rsqb;</mo> <mo>)</mo> </mrow> </mrow>
    Wherein, Δ F [i] represents the change function of air conditioner frequency described in the ith sample moment, ToRepresent sampling period, KPRepresent The proportionality coefficient, KIRepresent the integral coefficient, KDRepresent the differential coefficient.
  8. 8. device as claimed in claim 5, it is characterised in that the frequency change determining unit specifically includes：
    Sampling instant number determining module, for determining the number of sampling instant to be calculated；
    Computing module, for the numerical value according to the proportionality coefficient, integral coefficient and differential coefficient, determine according to the following equation The changing value of the air conditioner frequency：
    <mrow> <mi>&amp;Delta;</mi> <mi>F</mi> <mo>&amp;lsqb;</mo> <mi>i</mi> <mo>&amp;rsqb;</mo> <mo>=</mo> <msub> <mi>K</mi> <mi>P</mi> </msub> <mo>&amp;lsqb;</mo> <mi>m</mi> <mo>,</mo> <mi>n</mi> <mo>&amp;rsqb;</mo> <mo>&amp;times;</mo> <mi>&amp;Delta;</mi> <mi>T</mi> <mo>&amp;lsqb;</mo> <mi>i</mi> <mo>&amp;rsqb;</mo> <mo>+</mo> <msub> <mi>K</mi> <mi>I</mi> </msub> <mo>&amp;lsqb;</mo> <mi>m</mi> <mo>,</mo> <mi>n</mi> <mo>&amp;rsqb;</mo> <mo>&amp;times;</mo> <msub> <mi>T</mi> <mn>0</mn> </msub> <mo>&amp;times;</mo> <munderover> <mo>&amp;Sigma;</mo> <mrow> <mi>j</mi> <mo>=</mo> <mn>0</mn> </mrow> <mrow> <mi>M</mi> <mo>-</mo> <mn>1</mn> </mrow> </munderover> <mi>&amp;Delta;</mi> <mi>T</mi> <mo>&amp;lsqb;</mo> <mi>i</mi> <mo>-</mo> <mi>j</mi> <mo>&amp;rsqb;</mo> <mo>+</mo> <msub> <mi>K</mi> <mi>D</mi> </msub> <mo>&amp;lsqb;</mo> <mi>m</mi> <mo>,</mo> <mi>n</mi> <mo>&amp;rsqb;</mo> <mo>&amp;times;</mo> <mrow> <mo>(</mo> <mi>&amp;Delta;</mi> <mi>T</mi> <mo>&amp;lsqb;</mo> <mi>i</mi> <mo>&amp;rsqb;</mo> <mo>-</mo> <mi>&amp;Delta;</mi> <mi>T</mi> <mo>&amp;lsqb;</mo> <mi>i</mi> <mo>-</mo> <mn>1</mn> <mo>&amp;rsqb;</mo> <mo>)</mo> </mrow> </mrow>
    Wherein, Δ F [i] represents the changing value of air conditioner frequency described in the ith sample moment, KP[m, n] represents the proportionality coefficient Numerical value, KI[m, n] represents the numerical value of the integral coefficient, KD[m, n] represents the numerical value of the differential coefficient, ToRepresent sampling Cycle, Δ T [i] represent temperature gap corresponding to air conditioner described in the ith sample moment, and M represents the described to be calculated of determination The number of sampling instant, M are the integer more than or equal to 1.
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