CN110374852B - Frequency calculation method for variable-frequency air conditioner compressor - Google Patents

Frequency calculation method for variable-frequency air conditioner compressor Download PDF

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CN110374852B
CN110374852B CN201910676065.0A CN201910676065A CN110374852B CN 110374852 B CN110374852 B CN 110374852B CN 201910676065 A CN201910676065 A CN 201910676065A CN 110374852 B CN110374852 B CN 110374852B
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吕艳宗
王永镖
薛浩飞
王宏宇
韩冰
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CRRC Qingdao Sifang Rolling Stock Research Institute Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/06—Control using electricity
    • F04B49/065—Control using electricity and making use of computers
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
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Abstract

The invention relates to a frequency calculation method for a compressor of an inverter air conditioner, which comprises the following steps: according to the ambient temperature T outside the tankoutCorrecting return air temperature TreTemperature T of return airreCorrected to the calculated temperature Tca(ii) a According to the battery temperature TbaFurther correcting the calculated temperature TcaCorrecting the calculated temperature to be T'ca，T’caCalculating the corrected temperature; according to the corrected calculated temperature T'caDetermining the compressor frequency Fca. The frequency calculation method of the variable frequency air conditioner compressor, provided by the invention, takes the factors of the return air temperature, the battery temperature, the ambient temperature outside the box and the like into consideration, and controls the temperature of the battery box in a reasonable interval. Battery temperature parameters are introduced into the calculation of the temperature, so that the hysteresis from the battery temperature to the return air temperature is eliminated, and the frequency adjustment of the compressor has the characteristics of rapidness and response in advance; and ambient temperature parameters outside the box are introduced to participate in frequency calculation of the variable frequency compressor, so that the variable frequency air conditioner can work at higher efficiency all the time while meeting the requirements of the battery box, and energy conservation and consumption reduction are realized.

Description

Frequency calculation method for variable-frequency air conditioner compressor
Technical Field
The invention belongs to the technical field of compressor frequency calculation, and particularly relates to a frequency calculation method for a compressor of a variable frequency air conditioner.
Background
In a vehicle-mounted energy storage type power supply box, a general energy storage device is a battery or a super capacitor (hereinafter, referred to as a battery) and provides electric energy required by power for a vehicle in a running process. With the start and stop of a vehicle and the power consumption during running, the battery needs to be charged frequently and discharged frequently, so that the battery generates heat seriously, and the performance, the service life, the safety and the like of the battery are seriously influenced by high temperature. Therefore, more and more occasions adopt the air conditioning equipment to control the temperature of the power box, the influence of the outside temperature on the battery box can be effectively eliminated, and the battery box has a good application effect.
The vehicle-mounted energy storage type power supply box is provided with a special variable frequency air conditioner for adjusting the temperature of the battery. The variable frequency air conditioning unit can adjust the size of output cold quantity, and realizes small and stable temperature fluctuation range in the box and low energy consumption. The output cold quantity of the variable frequency air conditioning unit has direct relation with the frequency of the compressor thereof, and the compression is reasonably controlledThe air conditioner can work in a more efficient state due to the machine frequency, and the temperature in the box is more stable. The usual compressor frequency is at the target temperature TseAnd return air temperature TreThe temperature difference is calculated, and the calculation formula of the compressor frequency during refrigeration is as follows: fca＝Fra×(Tre-Tse) X k, where the temperature difference during cooling Δ T ═ Tre-Tse，FraIs the rated refrigerating frequency of the compressor at the rated refrigerating capacity, k is the adjustment coefficient, FcaFor the calculated compressor frequency, Fca∈[Fmin，Fmax]，FminIs the lower limit value of the operating frequency of the inverter compressor, FmaxIs the upper limit value of the operating frequency of the variable frequency compressor.
The above formula for calculating the frequency of the compressor during refrigeration only depends on the target temperature TseAnd return air temperature TreHowever, in practical application, the battery can work in a proper temperature range; the return air temperature only reflects the ambient temperature in the battery box, the final purpose of the variable frequency air conditioner is to adjust the battery temperature, and the transmission of the battery temperature to the return air temperature has certain hysteresis, so that the adjustment of the output capacity of the air conditioner lags behind the change of the battery temperature. In addition, the frequency calculation does not take the influence of the ambient temperature outside the box into account, so that the air conditioner cannot always work at high efficiency at different ambient temperatures.
Therefore, it is necessary to provide a reasonable compressor frequency calculation method by combining the battery temperature, the ambient temperature, and other factors.
Disclosure of Invention
The invention provides a novel frequency calculation method for the compressor of the variable-frequency air conditioner on the basis of the insufficiency of the frequency calculation method for the compressor, which adopts a composite type to calculate temperature parameters and simultaneously considers factors such as return air temperature, battery temperature, environmental temperature and the like to control the temperature of a battery box in a reasonable interval.
In order to achieve the aim, the invention provides a frequency calculation method for an inverter air conditioner compressor, which comprises the following steps:
according to the ambient temperature T outside the tankoutCorrecting return air temperature TreTemperature T of return airreCorrected to the calculated temperature Tca；
According to the battery temperature TbaFurther correcting the calculated temperature TcaCorrecting the calculated temperature to be T'ca，T’caCalculating the corrected temperature;
according to the corrected calculated temperature T'caDetermining the compressor frequency Fca。
Preferably, according to the ambient temperature T outside the tankoutCorrecting return air temperature TreTemperature T of return airreCorrected to the calculated temperature TcaThe method comprises the following steps:
given the subsection interval [ T ] of the environment temperature outside the variable frequency air conditioning boxo1,To2]Wherein T iso1＜To2，To1,To2Respectively a given interval lower limit value and a given interval upper limit value;
according to the interval [ To1,To2]Determining the ambient temperature T outside the enclosureoutIn the associated interval, determining the calculated temperature Tca。
Preferably, according to the interval [ To1,To2]Determining the ambient temperature T outside the enclosureoutIn the associated interval, determining the calculated temperature TcaThe method comprises the following steps:
if Tout＜To1Then calculate the temperature Tca＝Tre+ΔT1Wherein, Δ T1Correcting the temperature difference value for a given first temperature;
if Tout∈[To1,To2]Then calculate the temperature Tca＝Tre；
If Tout＞To2Then calculate the temperature Tca＝Tre-ΔT2Wherein, Δ T2The temperature difference value is corrected for a given second temperature.
Preferably, depending on the battery temperature TbaFurther correcting the calculated temperature TcaThe method comprises the following steps:
threshold T for participating in compressor frequency calculation given battery temperatureba_caWhen the battery temperature Tba＞Tba_caAt that time, will calculateTemperature TcaCorrected to be T'ca＝Tca+(Tba-Tba_ca) X a, wherein, T'caA is an adjustment coefficient for the corrected calculated temperature;
when the battery temperature Tba≤Tba_caOf is of'ca＝Tca。
Preferably, the temperature T 'is calculated from the corrected temperature'caDetermining the compressor frequency FcaThe method comprises the following steps:
according to the formula:
Fca＝Fra×[T’ca-(Tba_min+ΔT3)]/[(Tba_max-ΔT4)-(Tba_min+ΔT3)]
calculating compressor frequency F during refrigerationca；
Wherein, FraRated refrigeration frequency for the compressor; the allowable working environment temperature range of the battery is [ T ]ba_min,Tba_max]，Tba_min＜Tba_max，Tba_min,Tba_maxThe lower limit value and the upper limit value of the allowable working environment temperature of the battery are respectively; delta T3And Δ T4For an allowable working environment temperature range [ T ] of the batteryba_min,Tba_max]The interval between the upper limit and the lower limit is corrected to limit the temperature interval in the frequency calculation of the compressor to Tba_min+ΔT3,Tba_max-ΔT4]，Tba_min+ΔT3＜Tba_max-ΔT4。
Preferably, if the calculated compressor frequency FcaLess than a given lower limit value F of the compressor operating frequencyminAnd greater than 0, i.e., 0 < Fca＜FminThen compressor frequency Fca＝Fmin；
If the calculated compressor frequency FcaGreater than a given upper limit value F of the compressor operating frequencymaxI.e. Fca＞FmaxThen compressor frequency Fca＝Fmax。
Compared with the prior art, the invention has the advantages and positive effects that:
compared with the existing compressor frequency calculation method, the method adopts a composite calculation temperature parameter, considers factors such as return air temperature, battery temperature, ambient temperature outside the box and the like, and controls the temperature of the battery box in a reasonable interval. The return air temperature is corrected according to the ambient temperature outside the box, so that the variable frequency air conditioner can work at higher efficiency all the time while meeting the requirement of the battery box, and energy conservation and consumption reduction are realized. The return air temperature is further corrected according to the battery temperature, the hysteresis from the battery temperature to the return air temperature is eliminated, and the frequency adjustment of the compressor has the characteristics of rapidness and response in advance. The compressor frequency calculation method controls the temperature of the battery box in a reasonable interval, and can realize the stability and quick response of the temperature adjustment of the battery box; the variable frequency air conditioner can work at higher efficiency while meeting the requirements of the battery box, and energy conservation and consumption reduction are realized.
Drawings
FIG. 1 is a schematic flow chart of a method for calculating the frequency of an inverter air conditioner compressor according to the present invention.
Detailed Description
Hereinafter, embodiments of the present invention will be further described with reference to the accompanying drawings.
The embodiment provides a compressor frequency calculation method of a variable frequency air conditioner, which can be applied to a vehicle-mounted energy storage type power supply box and is used for adjusting the temperature of a battery. The structural form, the electrical composition and the like of the variable frequency air conditioner are not limited by a specific implementation method, and the air conditioning function of the battery box can be realized only by obtaining information such as return air temperature, ambient temperature outside the box, battery temperature and the like. A ventilation circulation channel is arranged between the battery box and the variable frequency air conditioner, air to be regulated is sucked into the variable frequency air conditioner through the battery box, and the regulated air is blown into the battery box through the variable frequency air conditioner. The specific connection form, installation relation and the like between the battery box and the variable frequency air conditioner are not limited, and the air circulation can be realized.
The compressor frequency calculation method will not pass through the target temperature T in the prior artseAnd return air temperature TreThe method for calculating the frequency of the compressor during refrigeration controls the temperature of the battery box in the temperature interval suitable for the battery by taking the temperature interval suitable for the battery, the return air temperature of the battery box, the temperature of the battery, the ambient temperature outside the box and the like as main calculation conditions, so that the temperature in the box is stable, the temperature rise of the battery can be quickly responded, and the frequency of the compressor is increased to increase the output cold quantity; the working efficiency of the variable frequency air conditioner is taken into consideration, so that the variable frequency air conditioner is always in higher working efficiency.
Specifically, referring to fig. 1, the method for calculating the frequency of the inverter compressor during refrigeration of the inverter air conditioner provided in this embodiment specifically includes the following steps:
(1) according to the ambient temperature T outside the tankoutCorrecting return air temperature TreTemperature T of return airreCorrected to the calculated temperature Tca. Namely:
given the subsection interval [ T ] of the environment temperature outside the variable frequency air conditioning boxo1,To2]Wherein, To1＜To2，To1,To2Respectively a given interval lower limit value and a given interval upper limit value;
according to the interval [ To1,To2]Determining the ambient temperature T outside the enclosureoutIn the associated interval, determining the calculated temperature TcaNamely:
if Tout＜To1Then calculate the temperature Tca＝Tre+ΔT1Wherein, Δ T1Correcting the temperature difference value for a given first temperature;
if Tout∈[To1,To2]Then calculate the temperature Tca＝Tre；
If Tout＞To2Then calculate the temperature Tca＝Tre-ΔT2Wherein, Δ T2The temperature difference value is corrected for a given second temperature.
For example: the environment temperature subsection interval outside the box is 25 ℃,40 DEG C],ΔT1＝3℃,ΔT22 deg.c. If the ambient temperature T outside the tankout24 deg.C, return air temperature TreAt 25 deg.C, the temperature T is calculatedca＝Tre+ΔT1The temperature is 28 ℃; if the ambient temperature T outside the tankout35 deg.C, return air temperature TreAt 28 ℃ the temperature T is calculatedca＝TreThe temperature is 28 ℃; if the ambient temperature T outside the tankout45 deg.C, return air temperature TreAt 30 ℃, the temperature T is calculatedca＝Tre－ΔT2＝28℃。
It is worth noting that the sectional intervals of the environment temperature outside the variable frequency air conditioner boxes can be divided according to the design working conditions and the test conditions of the variable frequency air conditioner, and the relationship between the calculated temperature and the return air temperature in each interval is similar to the above-mentioned sectional conditions.
The present embodiment adjusts the return air temperature to the calculated temperature based on the ambient temperature outside the tank, thereby participating in the compressor frequency calculation. When the ambient temperature outside the box is high, the controlled return air temperature is relatively high; when the environment temperature outside the box is too low, the controlled return air temperature is relatively low, so that the variable frequency air conditioner can work at high efficiency (energy efficiency ratio) when the environment temperature outside different boxes is low, and the energy saving and consumption reduction are realized.
Since the return air temperature reflects the ambient temperature in the battery box, the final purpose of the inverter air conditioner is to regulate the temperature of the battery, and hysteresis exists between the return air temperature and the battery temperature. Therefore, in order to respond to the rapid change of the battery temperature in time, it is necessary to introduce the battery temperature into the calculation of the frequency of the compressor of the inverter air conditioner, and further correct the calculated temperature so as to improve the response speed of the inverter air conditioner. The specific method comprises the following steps:
(2) according to the battery temperature TbaFurther correcting the calculated temperature TcaWill calculate the temperature TcaCorrected to be T'ca，T’caThe corrected calculated temperature. Namely:
threshold T for participating in compressor frequency calculation given battery temperatureba_caWhen the battery temperature Tba＞Tba_caWhen the temperature T is to be calculatedcaCorrected to be T'ca＝Tca+(Tba-Tba_ca) X a, wherein, T'caFor calculating the temperature after correctionDegree; and a is an adjustment coefficient, and different variable frequency air conditioning units and battery boxes have different values and can be obtained according to design and experiments. When the battery temperature Tba≤Tba_caOf is of'ca＝Tca。
(3) Then calculating the temperature T 'according to the corrected calculated temperature'caDetermining the compressor frequency Fca. The method specifically comprises the following steps:
the direct control object of the variable frequency air conditioner is the return air temperature which needs to be controlled within the temperature range [ T ] of the working environment allowed by the batteryba_min,Tba_max]In the calculation of the inverter compressor, therefore, T is introducedba_min,Tba_maxFrom the formula:
Fca＝Fra×[T’ca-(Tba_min+ΔT3)]/[(Tba_max-ΔT4)-(Tba_min+ΔT3)] (1)
the frequency F of the compressor during refrigeration can be calculatedca。
Wherein, FraRated refrigeration frequency for the compressor; the allowable working environment temperature range of the battery is [ T ]ba_min,Tba_max]，Tba_min＜Tba_max，Tba_min,Tba_maxThe lower limit value and the upper limit value of the allowable working environment temperature of the battery are respectively; delta T3And Δ T4For an allowable working environment temperature range [ T ] of the batteryba_min,Tba_max]The interval between the upper limit and the lower limit is modified, and a certain interval Delta T between the temperature intervals is reserved at the upper limit and the lower limit3、ΔT4The temperature interval during the frequency calculation of the compressor is limited to [ T ]ba_min+ΔT3,Tba_max-ΔT4]，Tba_min+ΔT3＜Tba_max-ΔT4To prevent the return air temperature from exceeding the allowable working environment temperature range of the battery due to the temperature regulation lag inertiaba_min,Tba_max]。
In the actual starting operation of the compressor, if the current state of the compressor is the operation, calculating by the formula (1) to obtain the frequency F of the compressorcaCan be straightenedAnd then output to the controller to control the operation of the compressor. If the current state of the compressor is stopped, actually limiting the calculated temperature T 'only after correction'ca＞(Tba_min+ΔT3+ΔT5) Time, Delta T5For a given third temperature difference value, the compressor frequency F is calculated by the above formula (1)caCan be output to the controller to start the compressor, otherwise it remains stopped.
For example: if the allowable working environment temperature range of a certain battery is Tba_min,Tba_max]At a temperature of 18 to 30 ℃ and a delta T3＝2℃，ΔT4＝2℃，ΔT5＝4℃，Fra＝80Hz。
(c) when the corrected calculated temperature T'caAt 22 ℃:
frequency F of compressorca＝80×[22－(18+2)]/[(30－2)-(18+2)]＝20Hz；
Because of Tc’a＝22℃﹤24℃＝(Tba_min+ΔT3+ΔT5) So, if the current compressor is running, it remains running and is tuned to that frequency; if the front compressor is stopped, it is not started.
② when the corrected calculated temperature T'caAt 28 ℃:
Fca＝80×[28－(18+2)]/[(30－2)-(18+2)]＝80Hz；
because of T'ca＝28℃>24℃＝(Tba_min+ΔT3+ΔT5) Therefore, the compressor may adjust to this frequency or start running.
It should be noted that, in practical applications, based on the performance requirements, safety and reliability of the inverter air conditioner, the inverter air conditioner may specify the upper limit F of the operating frequency of the inverter compressor according to the technical condition limitations of the inverter compressor, and the design and test conditions of the inverter air conditionermaxAnd a lower limit value FminIf the calculated compressor frequency FcaLess than a given lower limit value F of the compressor operating frequencyminAnd greater than 0, i.e., 0 < Fca＜FminThen compressor frequency Fca＝Fmin(ii) a If the calculated compressor frequency FcaGreater than a given upper limit value F of the compressor operating frequencymaxI.e. Fca＞FmaxThen compressor frequency Fca＝Fmax(ii) a Wherein Fmax＞FraWhen the corrected calculated temperature is higher, the air conditioner can provide the refrigerating capacity larger than the rated refrigerating capacity, so that the battery box is cooled quickly.
Compared with the existing compressor frequency calculation method, the variable frequency air conditioner compressor frequency calculation method provided by the invention adopts a composite calculation temperature parameter, and simultaneously considers factors such as return air temperature, battery temperature, and the ambient temperature outside the box, and controls the temperature of the battery box in a reasonable interval. The battery temperature parameter is introduced into the calculation of the temperature, so that the hysteresis from the battery temperature to the return air temperature is eliminated, and the frequency of the compressor has the characteristics of rapidness and early response. The temperature parameter outside the box is introduced to participate in the frequency calculation of the variable frequency compressor, so that the variable frequency air conditioner can always work at higher efficiency while meeting the requirement of the battery box, and the energy conservation and consumption reduction are realized. The compressor frequency calculation method controls the temperature of the battery box in a reasonable interval, and can realize the stability and quick response of the temperature adjustment of the battery box; the variable frequency air conditioner can meet the requirements of the battery box and work at higher efficiency at the same time, and energy conservation and consumption reduction are realized. Meanwhile, the compressor frequency calculation method is not limited to the application of the vehicle-mounted energy storage type power supply box, and can be expanded to other box body designs requiring the heat dissipation of the variable frequency air conditioner.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.

Claims (2)

1. A frequency calculation method for a compressor of an inverter air conditioner is characterized by comprising the following steps:
according to the ambient temperature T outside the tankoutCorrecting return air temperature TreTemperature T of return airreCorrected to the calculated temperature TcaNamely:
given the subsection interval [ T ] of the environment temperature outside the variable frequency air conditioning boxo1,To2]Wherein T iso1＜To2，To1,To2Respectively a given interval lower limit value and a given interval upper limit value;
if Tout＜To1Then calculate the temperature Tca＝Tre+ΔT1Wherein Δ T1Correcting the temperature difference value for a given first temperature; if Tout∈[To1,To2]Then calculate the temperature Tca＝Tre(ii) a If Tout>To2Then calculate the temperature Tca＝Tre-ΔT2Wherein Δ T2Correcting the temperature difference value for a given second temperature;
according to the battery temperature TbaFurther correcting the calculated temperature TcaCorrecting the calculated temperature to be T'caOf which is T'caFor the corrected calculated temperature, i.e.:
threshold T for participating in compressor frequency calculation given battery temperatureba_caWhen the battery temperature Tba>Tba_caWhen the temperature T is to be calculatedcaCorrected to be T'ca＝Tca+(Tba-Tba_ca) X a, wherein a is an adjustment coefficient; when the battery temperature Tba≤Tba_caOf is of'ca＝Tca；
According to the corrected calculated temperature T'caFrom the formula:
Fca＝Fra×[T’ca-(Tba_min+ΔT3)]/[(Tba_max-ΔT4)-(Tba_min+ΔT3)]
calculating compressor frequency F during refrigerationca；
Wherein, FraRated refrigeration frequency for the compressor; the allowable working environment temperature range of the battery is [ T ]ba_min,Tba_max]，Tba_min＜Tba_max，Tba_min,Tba_maxThe lower limit value and the upper limit value of the allowable working environment temperature of the battery are respectively; delta T3And Δ T4For an allowable working environment temperature range [ T ] of the batteryba_min,Tba_max]The interval between the upper limit and the lower limit is corrected to limit the temperature interval in the frequency calculation of the compressor to Tba_min+ΔT3,Tba_max-ΔT4]，Tba_min+ΔT3＜Tba_max-ΔT4。
2. The method of claim 1, wherein if the calculated compressor frequency F is greater than the predetermined frequency FcaLess than a given lower limit value F of the compressor operating frequencyminAnd greater than 0, i.e., 0 < Fca＜FminThen compressor frequency Fca＝Fmin；
If the calculated compressor frequency FcaGreater than a given upper limit value F of the compressor operating frequencymaxI.e. Fca>FmaxThen compressor frequency Fca＝Fmax。
CN201910676065.0A 2019-07-25 2019-07-25 Frequency calculation method for variable-frequency air conditioner compressor Active CN110374852B (en)

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JP3254621B2 (en) * 1995-12-28 2002-02-12 株式会社山武 VAV control system
CN103358851B (en) * 2012-04-05 2016-08-03 杭州三花研究院有限公司 A kind of automotive air-conditioning system
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US8767379B2 (en) * 2013-02-11 2014-07-01 Connecticut Electric, Inc. Recreational vehicle user interface system and method
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