CN104006592B - Frequency adjusting method and device for variable frequency compressor in heat pump system - Google Patents
Frequency adjusting method and device for variable frequency compressor in heat pump system Download PDFInfo
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- CN104006592B CN104006592B CN201410247398.9A CN201410247398A CN104006592B CN 104006592 B CN104006592 B CN 104006592B CN 201410247398 A CN201410247398 A CN 201410247398A CN 104006592 B CN104006592 B CN 104006592B
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- 239000003507 refrigerant Substances 0.000 description 4
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Abstract
The invention discloses a frequency adjusting method and a frequency adjusting device for a variable frequency compressor in a heat pump system. The frequency adjusting method comprises the following steps: acquiring a target temperature of the intermediate heat exchanger; detecting the temperature of the intermediate heat exchanger; calculating a target frequency of the inverter compressor according to the target temperature and the detected temperature; and adjusting the frequency of the variable frequency compressor through the target frequency, and adjusting the temperature of the intermediate heat exchanger through adjusting the frequency of the variable frequency compressor until the temperature of the intermediate heat exchanger is the target temperature. According to the invention, the problem that energy waste is easily caused when the frequency of the compressor is adjusted in the prior art is solved, and the effect of avoiding energy waste when the frequency of the compressor is adjusted is further achieved.
Description
Technical field
The present invention relates to compressor field, in particular to a kind of frequency of frequency-changeable compressor in heat pump
Control method and device.
Background technology
At present, converter technique is more and more applied in the systems such as air-conditioning, refrigeration, HVAC, frequency-changeable compressor
According to the operating frequency of actual cold heat load adjustment compressor drum, thus the refrigerant circulation of compressor can be controlled
With the cold medium flux of entrance heat exchanger, operating frequency is the highest, and the flow of coolant is the biggest, and cooling/heating amount is the biggest, and refrigeration/
Heat energy power is the strongest.When the heat pump of ordinary single-stage compression runs heating operation under condition of ultralow temperature, heating capacity decay is serious,
Heating effect it cannot be guaranteed that, unit reliability also meets a severe test.In order to ensure heating effect, generally use change
Frequently/fixed frequency overlapping heat pump, this system is made up of two single kind of refrigeration cycle, makes respectively in its high and low temperature part
In with, low-temperature refrigerant.This system includes condenser and vaporizer, and the vaporizer in low temperature part is used for making high-temperature portion
Cold-producing medium evaporation in Fen, high-temperature part condenser quantity of heat given up, with an Intermediate Heat Exchanger, two parts are connected,
It is the vaporizer of high-temperature part, is again the condenser of low temperature part, and within the system, low-temperature level system uses and becomes
Frequently compressor, high-temperature level system uses invariable frequency compressor, high at low-temperature level pressure of inspiration(Pi), and compressor efficiency is high, evaporation
Temperature can be lower, and the collocation mode equipment cost of frequency conversion/fixed frequency system is low.
Prior art generally uses the mode tabled look-up to regulate the running frequency of compressor, i.e. pre-sets an environment temperature
The table of degree and compressor frequency relation；When compressor operating, detect ambient temperature, root by ambient temperature temperature-sensitive bag
Table look-up according to this ambient temperature value and obtain the target frequency of compressor, and the frequency of compressor is adjusted.This control
Mode cannot ensure to make compressor run under optimal value of the parameter in any environment, causes compressor operating efficiency
Low, cause the waste of the energy.
The problem easily causing energy waste for frequency to compressor in prior art when being adjusted, the most not yet
Effective solution is proposed.
Summary of the invention
The main purpose of the embodiment of the present invention is to provide a kind of frequency regulation side of frequency-changeable compressor in heat pump
Method and device, the problem easily causing energy waste when being adjusted with the frequency solved in prior art compressor.
To achieve these goals, an aspect according to embodiments of the present invention, it is provided that a kind of in heat pump
The frequency adjustment method of frequency-changeable compressor.This heat pump includes that Intermediate Heat Exchanger and frequency-changeable compressor are real according to the present invention
The frequency adjustment method executing example includes: obtain the target temperature of Intermediate Heat Exchanger；The temperature of detection Intermediate Heat Exchanger；Root
Target frequency according to target temperature with the temperature computation frequency-changeable compressor detected；And by target frequency to frequency conversion pressure
The frequency of contracting machine is adjusted, and by the frequency of frequency-changeable compressor is adjusted regulating the temperature of Intermediate Heat Exchanger
Until the temperature of Intermediate Heat Exchanger is target temperature.
Further, heat pump also includes vaporizer and condenser, and the target temperature obtaining Intermediate Heat Exchanger includes:
Gather temperature and the temperature of condenser of vaporizer；It is the pressure of vaporizer by the temperature map of vaporizer, by condenser
The pressure that temperature map is condenser；Pressure according to condenser and the calculation of pressure goal pressure of vaporizer；And
Calculated goal pressure is mapped as target temperature.
Further, include according to the target frequency of the temperature computation frequency-changeable compressor of target temperature and Intermediate Heat Exchanger:
Obtaining the first temperature difference and the second temperature difference, wherein, the first temperature difference is current period internal object temperature and intermediate heat transfer
Temperature difference between the temperature of device, the second temperature difference is between previous cycle internal object temperature and the temperature of Intermediate Heat Exchanger
Temperature difference, wherein, the previous cycle is a cycle adjacent before current period；According to the first temperature difference and second
Temperature difference is calculated frequency variation；Obtain the running frequency of frequency-changeable compressor；And according to frequency variation and fortune
Line frequency calculates the target frequency of frequency-changeable compressor.
Further, it is adjusted including to the frequency of frequency-changeable compressor by target frequency: detection Intermediate Heat Exchanger
Temperature is the most identical with target temperature；If the temperature of Intermediate Heat Exchanger differs with target temperature, then judge middle changing
Whether the temperature of hot device is more than target temperature；When the temperature of Intermediate Heat Exchanger is more than target temperature, changed by frequency
Amount controls frequency-changeable compressor and reduces frequency；And when the temperature of Intermediate Heat Exchanger is less than target temperature, become by frequency
Change amount controls frequency-changeable compressor and improves frequency.
Further, by target frequency, the frequency of frequency-changeable compressor is adjusted, and by frequency-changeable compressor
Frequency is adjusted regulating the temperature of Intermediate Heat Exchanger until the temperature of Intermediate Heat Exchanger is that target temperature includes: detection
The temperature of Intermediate Heat Exchanger is the most identical with target temperature；If the temperature of Intermediate Heat Exchanger differs with target temperature,
Then continue to calculate target frequency, and according to continuing calculated target frequency, the frequency of frequency-changeable compressor be adjusted,
Until the temperature of Intermediate Heat Exchanger is identical with target temperature.
To achieve these goals, another aspect according to embodiments of the present invention, it is provided that a kind of in heat pump
The frequency regulation arrangement of frequency-changeable compressor.Heat pump includes that Intermediate Heat Exchanger and frequency-changeable compressor are implemented according to the present invention
The frequency adjustment method of example includes: acquiring unit, for obtaining the target temperature of Intermediate Heat Exchanger；Detector unit, uses
Temperature in detection Intermediate Heat Exchanger；Computing unit, for according to target temperature and the temperature computation frequency conversion pressure detected
The target frequency of contracting machine；And regulation unit, for the frequency of frequency-changeable compressor being adjusted by target frequency,
And by the frequency of frequency-changeable compressor being adjusted the temperature the regulating Intermediate Heat Exchanger temperature until Intermediate Heat Exchanger
For target temperature.
Further, heat pump also includes vaporizer and condenser, it is characterised in that acquiring unit includes: gather
Module, for gathering the temperature of vaporizer and the temperature of condenser；First mapping block, for by the temperature of vaporizer
It is mapped as the pressure of vaporizer, is the pressure of condenser by the temperature map of condenser；First computing module, for root
Pressure and the calculation of pressure goal pressure of vaporizer according to condenser；And second mapping block, for being calculated
Goal pressure be mapped as target temperature.
Further, computing unit includes: the first acquisition module, for obtaining the first temperature difference and the second temperature difference,
Wherein, the first temperature difference is the temperature difference between current period internal object temperature and the temperature of Intermediate Heat Exchanger, the second temperature
Degree difference is the temperature difference between previous cycle internal object temperature and the temperature of Intermediate Heat Exchanger, and wherein, the previous cycle is for working as
A cycle adjacent before the front cycle；Second computing module, for calculating according to the first temperature difference and the second temperature difference
Obtain frequency variation；Second acquisition module, for obtaining the running frequency of frequency-changeable compressor；And the 3rd calculate mould
Block, for calculating the target frequency of frequency-changeable compressor according to frequency variation and running frequency.
Further, regulation unit includes: first detection module, for detect the temperature of Intermediate Heat Exchanger whether with mesh
Mark temperature is identical；Judge module, for when the temperature of Intermediate Heat Exchanger differs with target temperature, it is judged that centre is changed
Whether the temperature of hot device is more than target temperature；Frequency reducing module, is used for when the temperature of Intermediate Heat Exchanger is more than target temperature,
Control frequency-changeable compressor by frequency variation and reduce frequency；And liter frequency module, for little in Intermediate Heat Exchanger temperature
When target temperature, control frequency-changeable compressor by frequency variation and improve frequency.
Further, regulation unit includes: the second detection module, for detect the temperature of Intermediate Heat Exchanger whether with mesh
Mark temperature is identical；Continue module, for when the temperature of Intermediate Heat Exchanger differs with target temperature, continue to calculate mesh
Mark frequency, and according to continuing calculated target frequency, the frequency of frequency-changeable compressor is adjusted, until centre is changed
The temperature of hot device is identical with target temperature.
In embodiments of the present invention, the target temperature of acquisition Intermediate Heat Exchanger is used；The temperature of detection Intermediate Heat Exchanger；
Target frequency according to target temperature with the temperature computation frequency-changeable compressor detected；And by target frequency to frequency conversion
The frequency of compressor is adjusted, and by the frequency of frequency-changeable compressor is adjusted regulating the temperature of Intermediate Heat Exchanger
Degree is until the temperature of Intermediate Heat Exchanger is target temperature, and in prior art, frequency to compressor is easily made when being adjusted
The problem becoming energy waste, and then reached to avoid the effect of energy waste when the frequency of compressor is adjusted.
Accompanying drawing explanation
The accompanying drawing of the part constituting the application is used for providing a further understanding of the present invention, and the present invention's is schematic real
Execute example and illustrate for explaining the present invention, being not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram of heat pump；
Fig. 2 is the flow chart of frequency adjustment method according to embodiments of the present invention；
Fig. 3 is the flow chart of regulation compressor frequency according to embodiments of the present invention；
Fig. 4 is the schematic diagram that the temperature of Intermediate Heat Exchanger is adjusted to target temperature according to embodiments of the present invention；
Fig. 5 is the schematic diagram of frequency regulation arrangement according to embodiments of the present invention；
Fig. 6 is the schematic diagram of frequency regulation arrangement according to the preferred embodiment of the invention；And
Fig. 7 is the schematic diagram of the frequency regulation arrangement according to another preferred embodiment of the present invention.
Detailed description of the invention
In order to make those skilled in the art be more fully understood that the present invention program, below in conjunction with in the embodiment of the present invention
Accompanying drawing, is clearly and completely described the technical scheme in the embodiment of the present invention, it is clear that described embodiment
It is only the embodiment of a present invention part rather than whole embodiments.Based on the embodiment in the present invention, ability
The every other embodiment that territory those of ordinary skill is obtained under not making creative work premise, all should belong to
The scope of protection of the invention.
It should be noted that term " first " in description and claims of this specification and above-mentioned accompanying drawing, "
Two " it is etc. for distinguishing similar object, without being used for describing specific order or precedence.Should be appreciated that this
Sample use data can exchange in the appropriate case, in order to embodiments of the invention described herein can with except
Here the order beyond those illustrating or describing is implemented.Additionally, term " includes " and " having " and they
Any deformation, it is intended that cover non-exclusive comprising, such as, contain series of steps or the process of unit, side
Method, system, product or equipment are not necessarily limited to those steps or the unit clearly listed, but can include the clearest
List or for intrinsic other step of these processes, method, product or equipment or unit.
Embodiments provide the frequency adjustment method of a kind of frequency-changeable compressor for heat pump.
As it is shown in figure 1, have low-temperature circuit A and high-temperature circuit B in heat pump, low-temperature circuit A is provided with
Vaporizer 10, frequency-changeable compressor 20 and electric expansion valve 30, be provided with condenser 40, fixed frequency pressure in high-temperature circuit B
Contracting machine 50 and electric expansion valve 60, generally also can be provided with Intermediate Heat Exchanger 70 in this heat pump, connect high temperature
Loop and low-temperature circuit, wherein, Intermediate Heat Exchanger 70 includes the condenser 701 being connected in low-temperature circuit and is connected to
Vaporizer 702 in high-temperature circuit.
Cold-producing medium, the in the vaporizer 10 heat in refrigerant suction outside air is added, in frequency conversion in low-temperature circuit
Compressor 20 is compressed into middle temperature gases at high pressure, subsequently enters Intermediate Heat Exchanger 70, by condenser 701 heat release,
The cold-producing medium throttling by electric expansion valve 30 after heat release, the cryogenic gas cold-producing medium after throttling enters in vaporizer 10
Again absorb heat.Liberated heat in Intermediate Heat Exchanger 70, by high-temperature circuit water by Intermediate Heat Exchanger 70
Vaporizer 702 absorb so that refrigerant temperature in high-temperature circuit raises, and through fixed frequency pressure in high-temperature circuit
Contracting machine 50 is compressed into high temperature and high pressure gas, heat release liquefaction in condenser 40, is then throttled by electric expansion valve 60
After return to Intermediate Heat Exchanger 70 continues to absorb cold-producing medium sends in low-temperature circuit heat and gasify.Through high-temperature circuit
In the heat that sends of condenser 40 heat for treating heating target, as the water in water tank is heated or
Directly air is heated.
Fig. 2 is the flow chart of frequency adjustment method according to embodiments of the present invention.As it can be seen, this frequency adjustment method bag
Include following steps:
Step S202, obtains the target temperature of Intermediate Heat Exchanger.
The i.e. Intermediate Heat Exchanger of target temperature needs the temperature reached, and this target temperature can be according to vaporizer in heat pump
Temperature and the temperature computation of condenser obtain.
Step S204, the temperature of detection Intermediate Heat Exchanger.The temperature of Intermediate Heat Exchanger can be carried out by sensor in real time
Detection, detects Intermediate Heat Exchanger actual temperature in running.
Step S206, according to the target frequency of target temperature with the temperature computation frequency-changeable compressor detected.Pass through frequency conversion
The regulation of the running frequency of compressor can regulate the temperature of output, when the running frequency of frequency-changeable compressor raises, becomes
The heat of compressor output frequently is the highest, when the running frequency of frequency-changeable compressor reduces, and the heat of frequency-changeable compressor output
Amount also reduces, and the heat of Intermediate Heat Exchanger obtains through frequency-changeable compressor, therefore, it is possible to by the temperature of Intermediate Heat Exchanger
Degree calculates the target frequency of frequency-changeable compressor.
Step S208, is adjusted the frequency of frequency-changeable compressor by target frequency, and by frequency-changeable compressor
Frequency is adjusted regulating the temperature of Intermediate Heat Exchanger until the temperature of Intermediate Heat Exchanger is target temperature.
After being calculated target frequency, by target frequency, the frequency of frequency-changeable compressor is adjusted, by right
It is that target temperature is identical that the regulation of frequency-changeable compressor frequency regulates the temperature of Intermediate Heat Exchanger.By above-described embodiment,
The mesh of frequency-changeable compressor is calculated by the temperature of the Intermediate Heat Exchanger of detection and the target temperature of the Intermediate Heat Exchanger got
Mark frequency, takes into full account the performance of heat pump itself, calculates frequency-changeable compressor according to the parameter of heat pump itself
Target frequency, thus when regulating the temperature of Intermediate Heat Exchanger by the frequency of regulation frequency-changeable compressor, not only in
Between the temperature of heat exchanger be target temperature, moreover it is possible to allow heat pump run under optimum operational factor, thus save
The operation energy consumption of system, has reached the effect avoiding energy consumption to waste.
Further, the method for the target temperature obtaining Intermediate Heat Exchanger includes: gather temperature and the condenser of vaporizer
Temperature.It is the pressure of vaporizer by the temperature map of vaporizer, is the pressure of condenser by the temperature map of condenser.
Pressure according to condenser and the calculation of pressure goal pressure of vaporizer.Calculated goal pressure is mapped as target
Temperature.
Vaporizer and condenser is had, in order to take into full account heat pump when regulating the temperature of Intermediate Heat Exchanger in heat pump
The parameter of system itself and performance, can determine the mesh of Intermediate Heat Exchanger by the temperature of the temperature of vaporizer and condenser
Mark temperature.Above-mentioned gatherer process can be acquired in real time by sensor.
Due to the physical characteristic of cold-producing medium, under cold-producing medium saturation, the temperature of cold-producing medium and pressure have 1 a pair
Should be related to, temperature Te that the temperature map of vaporizer is the pressure of vaporizer, i.e. vaporizer can be mapped by tabling look-up
For the pressure Pe of vaporizer, temperature Tc of condenser is mapped as the pressure Pc of condenser.
Goal pressure is Pz ', goal pressureWherein C is correction factor, and general C value is 1.0
Near.
Pass throughGoal pressure can be calculated, after being calculated goal pressure, can be according to pressure
Power and the corresponding relation of temperature, by goal pressure Pz ' it is mapped as corresponding target temperature Tz '.
By above-described embodiment, the temperature of condenser and the temperature of vaporizer is utilized to determine the temperature of Intermediate Heat Exchanger,
When the temperature of regulation Intermediate Heat Exchanger is target temperature, take into full account the performance of heat pump itself, thus by adjusting
When the frequency of joint frequency-changeable compressor regulates the temperature of Intermediate Heat Exchanger, not only the temperature of Intermediate Heat Exchanger is target temperature,
Heat pump can also be allowed to run under optimum operational factor, thus saved the operation energy consumption of system, reach to avoid
The effect of energy consumption waste.
Further, include according to the target frequency of the temperature computation frequency-changeable compressor of target temperature and Intermediate Heat Exchanger:
Obtaining the first temperature difference and the second temperature difference, wherein, the first temperature difference is current period internal object temperature and centre
Temperature difference between the temperature of heat exchanger, the second temperature difference is previous cycle internal object temperature and the temperature of Intermediate Heat Exchanger
Between temperature difference, wherein, the previous cycle is a cycle adjacent before current period.
By the target frequency of the temperature computation frequency-changeable compressor of Intermediate Heat Exchanger, and by adjusting frequency-changeable compressor
Frequency is that target frequency is so that the process that temperature is target temperature of Intermediate Heat Exchanger is a cycle.Current period
It it is adjacent two cycle with the previous cycle, with reference to the first temperature difference and second temperature in previous cycle of current period
When degree difference calculates frequency variation, frequency can be avoided to occur, and bigger fluctuation affects the life-span of frequency-changeable compressor, or
Person causes the heat of output to have large change.That is, the first temperature difference Δ Tz=Tz'-Tz, the second temperature difference is Δ Tz'.
Wherein, Tz is the temperature of the Intermediate Heat Exchanger detected, Tz' is the target temperature of Intermediate Heat Exchanger.
Frequency variation is calculated according to the first temperature difference and the second temperature difference.Each cycle T calculates a frequency variation
Δ F, Δ F=A* (Δ Tz-Δ Tz')-B* ∫ Δ Tzdt, wherein, Δ Tz' is the second temperature difference, and A is that ratio controls system
Number, B is integral control coefficient, and Δ F can not exceed [Δ Fmin,ΔFmax].When Δ F surpasses and goes beyond the scope, take corresponding
Ultimate value carry out frequency regulation, prevent because regulation during occur that unpredictable mistake causes and calculates
Value excessive, it is to avoid cause system out of control.
Obtain the running frequency of frequency-changeable compressor.The running frequency of frequency-changeable compressor can directly be read by frequency-changeable compressor
Acquirement is arrived, i.e. the current operation frequency F of frequency-changeable compressor.
The target frequency of frequency-changeable compressor is calculated according to frequency variation and running frequency.Target frequency F'=F+ Δ F.
By the value of the calculated frequency variation of above-described embodiment may be on the occasion of or negative value, due to target frequency
For F'=F+ Δ F, when the value of frequency variation is negative value, i.e. reduce the running frequency of frequency-changeable compressor, in frequency
The value of variable quantity be on the occasion of time, i.e. improve the running frequency of frequency-changeable compressor, by frequency variation regulation frequency conversion compress
The running frequency of machine, thus regulate the temperature of Intermediate Heat Exchanger.
By described target frequency, the frequency of described frequency-changeable compressor is adjusted as shown in Figure 3:
Step S301, the temperature of detection Intermediate Heat Exchanger is the most identical with target temperature, i.e. Tz=Tz'.If it is middle
The temperature of heat exchanger is identical with target temperature, then terminate to adjust, if the temperature of Intermediate Heat Exchanger and target temperature not phase
With, then perform step S302.
Step S302, if the temperature of Intermediate Heat Exchanger differs with target temperature, then judges the temperature of Intermediate Heat Exchanger
Whether more than target temperature, i.e. Tz ＞ Tz'.
If the temperature of Intermediate Heat Exchanger is more than target temperature, then perform step S303, frequency reducing.Otherwise, deficiency is performed
S304, raising frequency.
Step S303, when the temperature of Intermediate Heat Exchanger is more than target temperature, controls frequency conversion by frequency variation and compresses
Machine reduces frequency, i.e. frequency reducing.
Step S304, when Intermediate Heat Exchanger temperature is less than target temperature, controls frequency-changeable compressor by frequency variation
Improve frequency, i.e. raising frequency.
In heat pump running, several factors affects the temperature of Intermediate Heat Exchanger, so that Intermediate Heat Exchanger
Temperature can accurately reach target temperature, if the temperature of Intermediate Heat Exchanger after regulation does not reach within a cycle
To target temperature, then need the purpose recalculating target frequency to reach to regulate the temperature of Intermediate Heat Exchanger.I.e. pass through
The frequency of frequency-changeable compressor is adjusted by target frequency, and by being adjusted regulating to the frequency of frequency-changeable compressor
The temperature of Intermediate Heat Exchanger is until the temperature of Intermediate Heat Exchanger is that target temperature includes:
The temperature of detection Intermediate Heat Exchanger is the most identical with target temperature.
If the temperature of Intermediate Heat Exchanger differs with target temperature, then continue to calculate target frequency, and according to continuing meter
The frequency of frequency-changeable compressor is adjusted by the target frequency obtained, until the temperature of Intermediate Heat Exchanger and target temperature
Identical.
If the temperature of Intermediate Heat Exchanger is identical with target temperature, then stop calculating target frequency.
Below in conjunction with Fig. 4, the control method of the embodiment of the present invention is illustrated.
First, calculate the target temperature Tz' of Intermediate Heat Exchanger, calculate temperature and the target temperature of the Intermediate Heat Exchanger of detection
Between temperature difference Δ Tz, collected after the data such as target temperature, temperature difference by master chip, according to these data meters
Calculate frequency variation, and calculate target frequency according to the running frequency of frequency variation and frequency-changeable compressor, utilize target
The frequency of FREQUENCY CONTROL converter, thus control the operation of compressor, along with the rising of frequency, the temperature of Intermediate Heat Exchanger
Degree raises, and along with the reduction of frequency, the temperature of Intermediate Heat Exchanger reduces, and the temperature detecting now Intermediate Heat Exchanger is Tz.
The temperature of the Intermediate Heat Exchanger after overregulating is obtained by the temperature-sensitive bag of Intermediate Heat Exchanger, now detects that temperature can
Can be Intermediate Heat Exchanger receive disturbance quantity interference after temperature.If the now temperature of Intermediate Heat Exchanger and target temperature
Differ, then continue to calculate target temperature, and calculate target frequency will pass through the frequency regulation intermediate heat transfer of compressor
The temperature of device, is finally reached the purpose that temperature that Intermediate Heat Exchanger detects is identical with target temperature.
By above-described embodiment, when regulating the temperature of Intermediate Heat Exchanger, by gathering temperature and the condenser of vaporizer
Temperature determine target temperature, and determine compressor with reference to when previous frequency variation and previous frequency variation
Running frequency, improved the temperature of Intermediate Heat Exchanger by the frequency of liter high compressor, the frequency reducing compressor reduces
The temperature of Intermediate Heat Exchanger, performs above-mentioned steps by circulation and makes temperature and the target temperature phase of final Intermediate Heat Exchanger
With.
It should be noted that for aforesaid each method embodiment, in order to be briefly described, therefore it is all expressed as one it be
The combination of actions of row, but those skilled in the art should know, the present invention not limiting by described sequence of movement
System, because according to the present invention, some step can use other orders or carry out simultaneously.Secondly, art technology
Personnel also should know, embodiment described in this description belongs to preferred embodiment, involved action and module
Not necessarily necessary to the present invention.
Through the above description of the embodiments, those skilled in the art is it can be understood that arrive according to above-mentioned enforcement
The method of example can add the mode of required general hardware platform by software and realize, naturally it is also possible to by hardware, but
In the case of Hen Duo, the former is more preferably embodiment.Based on such understanding, technical scheme substantially or
Saying that the part contributing prior art can embody with the form of software product, this computer software product is deposited
Storage is in a storage medium (such as ROM/RAM, magnetic disc, CD), including some instructions with so that a station terminal
Equipment (can be mobile phone, computer, server, or the network equipment etc.) performs the side of each embodiment of the present invention
Method.
According to embodiments of the present invention, additionally provide a kind of frequency regulation arrangement for implementing said frequencies control method,
This frequency regulation arrangement is mainly used in performing the frequency adjustment method that embodiment of the present invention foregoing is provided, the most right
The frequency regulation arrangement that the embodiment of the present invention is provided does specifically to be introduced:
Fig. 5 is the schematic diagram of frequency regulation arrangement according to embodiments of the present invention.As it can be seen, this frequency regulation arrangement
Including: acquiring unit 10, detector unit 20, computing unit 30 and regulation unit 40.
Acquiring unit 10 is for obtaining the target temperature of Intermediate Heat Exchanger.
The i.e. Intermediate Heat Exchanger of target temperature needs the temperature reached, and this target temperature can be according to vaporizer in heat pump
Temperature and the temperature computation of condenser obtain.
Detector unit 20 is for detecting the temperature of Intermediate Heat Exchanger.The temperature of Intermediate Heat Exchanger can be carried out by sensor
Detection in real time, detects Intermediate Heat Exchanger actual temperature in running.
Computing unit 30 is for the target frequency according to target temperature with the temperature computation frequency-changeable compressor detected.Pass through
The regulation of the running frequency of frequency-changeable compressor can regulate the temperature of output, when the running frequency of frequency-changeable compressor raises,
The heat of frequency-changeable compressor output is the highest, when the running frequency of frequency-changeable compressor reduces, frequency-changeable compressor output
Heat also reduces, and the heat of Intermediate Heat Exchanger obtains through frequency-changeable compressor, therefore, it is possible to by Intermediate Heat Exchanger
Temperature calculates the target frequency of frequency-changeable compressor.
Regulation unit 40 is used for being adjusted the frequency of frequency-changeable compressor by target frequency, and by frequency conversion is compressed
The frequency of machine is adjusted regulating the temperature of Intermediate Heat Exchanger until the temperature of Intermediate Heat Exchanger is target temperature.
After being calculated target frequency, by target frequency, the frequency of frequency-changeable compressor is adjusted, by right
It is that target temperature is identical that the regulation of frequency-changeable compressor frequency regulates the temperature of Intermediate Heat Exchanger.By above-described embodiment,
The mesh of frequency-changeable compressor is calculated by the temperature of the Intermediate Heat Exchanger of detection and the target temperature of the Intermediate Heat Exchanger got
Mark frequency, takes into full account the performance of heat pump itself, calculates frequency-changeable compressor according to the parameter of heat pump itself
Target frequency, thus when regulating the temperature of Intermediate Heat Exchanger by the frequency of regulation frequency-changeable compressor, not only in
Between the temperature of heat exchanger be target temperature, moreover it is possible to allow heat pump run under optimum operational factor, thus save
The operation energy consumption of system, has reached the effect avoiding energy consumption to waste.
Further, acquiring unit includes: acquisition module, the first mapping block, the first computing module and second map
Module.
Acquisition module is for gathering the temperature of vaporizer and the temperature of condenser.First mapping block is for by vaporizer
Temperature map is the pressure of vaporizer, is the pressure of condenser by the temperature map of condenser.First computing module is used for
Pressure according to condenser and the calculation of pressure goal pressure of vaporizer.Second mapping block is for by calculated mesh
Mark pressure mapping is target temperature.
Vaporizer and condenser is had, in order to take into full account heat pump when regulating the temperature of Intermediate Heat Exchanger in heat pump
The parameter of system itself and performance, can determine the mesh of Intermediate Heat Exchanger by the temperature of the temperature of vaporizer and condenser
Mark temperature.Above-mentioned gatherer process can be acquired in real time by sensor.
Due to the physical characteristic of cold-producing medium, the temperature of cold-producing medium and the pressure of cold-producing medium have one-to-one relationship, pass through
Table look-up and temperature Te that the temperature map of vaporizer is the pressure of vaporizer, i.e. vaporizer can be mapped as the pressure of vaporizer
Power Pe, temperature Tc of condenser is mapped as the pressure Pc of condenser.
Goal pressure is Pz ', goal pressureWherein C is correction factor, and general C value is 1.0
Near.
Pass throughGoal pressure can be calculated, after being calculated goal pressure, can be according to pressure
Power and the corresponding relation of temperature, by goal pressure Pz ' it is mapped as corresponding target temperature Tz '.
By above-described embodiment, the temperature of condenser and the temperature of vaporizer is utilized to determine the temperature of Intermediate Heat Exchanger,
When the temperature of regulation Intermediate Heat Exchanger is target temperature, take into full account the performance of heat pump itself, thus by adjusting
When the frequency of joint frequency-changeable compressor regulates the temperature of Intermediate Heat Exchanger, not only the temperature of Intermediate Heat Exchanger is target temperature,
Heat pump can also be allowed to run under optimum operational factor, thus saved the operation energy consumption of system, reach to avoid
The effect of energy consumption waste.
Further, calculating the target frequency of frequency-changeable compressor as shown in Figure 6, this computing unit 30 includes: first obtains
Delivery block the 301, second computing module the 302, second acquisition module 303 and the 3rd computing module 304.First obtains mould
Block 301, for obtaining the first temperature difference and the second temperature difference, wherein, the first temperature difference is current period internal object temperature
Temperature difference between degree and the temperature of Intermediate Heat Exchanger, the second temperature difference is previous cycle internal object temperature and intermediate heat transfer
Temperature difference between the temperature of device, wherein, the previous cycle is a cycle adjacent before current period.
By the target frequency of the temperature computation frequency-changeable compressor of Intermediate Heat Exchanger, and by adjusting frequency-changeable compressor
Frequency is that target frequency is so that the process that temperature is target temperature of Intermediate Heat Exchanger is a cycle.Current period
It it is adjacent two cycle with the previous cycle, with reference to the first temperature difference and second temperature in previous cycle of current period
When degree difference calculates frequency variation, frequency can be avoided to occur, and bigger fluctuation affects the life-span of frequency-changeable compressor, or
Person causes the heat of output to have large change.That is, the first temperature difference Δ Tz=Tz'-Tz, the second temperature difference is Δ Tz'.
Wherein, Tz is the temperature of the Intermediate Heat Exchanger detected, Tz' is the target temperature of Intermediate Heat Exchanger.
Second computing module 302, for being calculated frequency variation according to the first temperature difference and the second temperature difference.Often
Individual execution cycle T calculates a frequency variation Δ F, Δ F=A* (Δ Tz-Δ Tz')-B* ∫ Δ Tzdt, wherein, Δ Tz'
Being the second temperature difference, A is proportional control factor, and B is integral control coefficient, and Δ F can not exceed [Δ Fmin,ΔFmax]。
Δ F is super go beyond the scope time, then taking corresponding ultimate value to carry out frequency regulation, preventing because going out during regulation
Show unpredictable mistake and cause the value calculated excessive, it is to avoid cause system out of control.
Second acquisition module 303, for obtaining the running frequency of frequency-changeable compressor.And the operation frequency of frequency-changeable compressor
Rate directly can be read by frequency-changeable compressor and obtain, i.e. the current operation frequency F of frequency-changeable compressor.
3rd computing module 304, for calculating the target frequency of frequency-changeable compressor according to frequency variation and running frequency.
Target frequency F'=F+ Δ F.
By the value of the calculated frequency variation of above-described embodiment may be on the occasion of or negative value, due to target frequency
For F'=F+ Δ F, when the value of frequency variation is negative value, i.e. reduce the running frequency of frequency-changeable compressor, in frequency
The value of variable quantity be on the occasion of time, i.e. improve the running frequency of frequency-changeable compressor, by frequency variation regulation frequency conversion compress
The running frequency of machine, thus regulate the temperature of Intermediate Heat Exchanger.
Further, the regulation unit 40 that by target frequency, the frequency of frequency-changeable compressor is adjusted as it is shown in fig. 7,
Including: first detection module 401, judge module 402, frequency reducing module 403 and liter frequency module 404.
First detection module 401 is the most identical with target temperature for the temperature detecting Intermediate Heat Exchanger, i.e. Tz=Tz'.
If the temperature of Intermediate Heat Exchanger is identical with target temperature, then terminate to adjust, if the temperature of Intermediate Heat Exchanger and target
Temperature differs, then utilize judge module to judge.
Judge module 402 is for when the temperature of Intermediate Heat Exchanger differs with target temperature, it is judged that Intermediate Heat Exchanger
Whether temperature is more than target temperature, i.e. Tz ＞ Tz'.If the temperature of Intermediate Heat Exchanger is more than target temperature, then utilize fall
Frequency module carries out frequency reducing, otherwise, utilizes liter frequency module to carry out raising frequency.
Frequency reducing module 403, for when the temperature of Intermediate Heat Exchanger is more than target temperature, controls to become by frequency variation
Frequently compressor reduces frequency.And
Rise frequency module 404 for when Intermediate Heat Exchanger temperature is less than target temperature, controlling frequency conversion by frequency variation
Compressor improves frequency.
In heat pump running, several factors affects the temperature of Intermediate Heat Exchanger, so that Intermediate Heat Exchanger
Temperature can accurately reach target temperature, if the temperature of Intermediate Heat Exchanger after regulation does not reach within a cycle
To target temperature, then need the purpose recalculating target frequency to reach to regulate the temperature of Intermediate Heat Exchanger.I.e. regulate
Unit includes the second detection module and continues module, the frequency of frequency-changeable compressor is adjusted by target frequency,
And by the frequency of frequency-changeable compressor being adjusted the temperature the regulating Intermediate Heat Exchanger temperature until Intermediate Heat Exchanger
For target temperature, wherein:
Second detection module is the most identical with target temperature for detecting the temperature of Intermediate Heat Exchanger.
Continue module, for when the temperature of Intermediate Heat Exchanger differs with target temperature, continue to calculate target frequency,
And the frequency of frequency-changeable compressor being adjusted according to continuing calculated target frequency, until the temperature of Intermediate Heat Exchanger
Spend identical with target temperature.
As shown in Figure 4, first, acquiring unit calculates the target temperature Tz' of Intermediate Heat Exchanger, and the first acquisition module calculates
Detection Intermediate Heat Exchanger temperature and target temperature between temperature difference Δ Tz, by master chip collect target temperature,
After the data such as temperature difference, the second computing module calculates frequency variation according to these data, and according to frequency variation
Calculate target frequency with the running frequency of frequency-changeable compressor, utilize target frequency to control the frequency of converter, thus control
The operation of compressor, along with the rising of frequency, the temperature of Intermediate Heat Exchanger raises, and along with the reduction of frequency, centre is changed
The temperature of hot device reduces, and the temperature detecting now Intermediate Heat Exchanger is Tz.
The temperature of the Intermediate Heat Exchanger after overregulating is obtained by the temperature-sensitive bag of Intermediate Heat Exchanger, now detects that temperature can
Can be Intermediate Heat Exchanger receive disturbance quantity interference after temperature.If the now temperature of Intermediate Heat Exchanger and target temperature
Differ, then continue to calculate target temperature, and calculate target frequency will pass through the frequency regulation intermediate heat transfer of compressor
The temperature of device, is finally reached the purpose that temperature that Intermediate Heat Exchanger detects is identical with target temperature.
By above-described embodiment, when regulating the temperature of Intermediate Heat Exchanger, by gathering temperature and the condenser of vaporizer
Temperature determine target temperature, and determine compressor with reference to when previous frequency variation and previous frequency variation
Running frequency, improved the temperature of Intermediate Heat Exchanger by the frequency of liter high compressor, the frequency reducing compressor reduces
The temperature of Intermediate Heat Exchanger, performs above-mentioned steps by circulation and makes temperature and the target temperature phase of final Intermediate Heat Exchanger
With.
In the above embodiment of the present invention, the description to each embodiment all emphasizes particularly on different fields, and does not has in certain embodiment
The part described in detail, may refer to the associated description of other embodiments.
In several embodiments provided herein, it should be understood that disclosed client, can be passed through other
Mode realizes.Wherein, device embodiment described above is only schematically, the division of such as unit, only
Dividing for a kind of logic function, actual can have other dividing mode when realizing, and the most multiple unit or assembly are permissible
In conjunction with or be desirably integrated into another system, or some features can be ignored, or does not performs.Another point, shown
Or discuss coupling each other direct-coupling or communication connection can be by some interfaces, unit or module
INDIRECT COUPLING or communication connection, can be being electrical or other form.
The unit illustrated as separating component can be or may not be physically separate, shows as unit
Parts can be or may not be physical location, i.e. may be located at a place, or can also be distributed to multiple
On NE.Some or all of unit therein can be selected according to the actual needs to realize the present embodiment scheme
Purpose.
It addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it is also possible to
It is that unit is individually physically present, it is also possible to two or more unit are integrated in a unit.Above-mentioned integrated
Unit both can realize to use the form of hardware, it would however also be possible to employ the form of SFU software functional unit realizes.
Below it is only the preferred embodiment of the present invention, it is noted that those skilled in the art are come
Saying, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications are also
Should be regarded as protection scope of the present invention.
Claims (8)
1. a frequency adjustment method for frequency-changeable compressor in heat pump, described heat pump includes Intermediate Heat Exchanger
And frequency-changeable compressor, it is characterised in that including:
Obtain the target temperature of described Intermediate Heat Exchanger；
Detect the temperature of described Intermediate Heat Exchanger；
Target frequency according to described target temperature with frequency-changeable compressor described in the temperature computation detected；And
By described target frequency, the frequency of described frequency-changeable compressor is adjusted, and by described frequency conversion pressure
The frequency of contracting machine is adjusted regulating the temperature of described Intermediate Heat Exchanger until the temperature of described Intermediate Heat Exchanger is
Described target temperature；
Described heat pump also includes vaporizer and condenser, and the target temperature obtaining Intermediate Heat Exchanger includes:
Gather temperature and the temperature of described condenser of described vaporizer；
By the pressure that temperature map is described vaporizer of described vaporizer, by the temperature map of described condenser it is
The pressure of described condenser；
Pressure according to described condenser and the calculation of pressure goal pressure of described vaporizer；And
Calculated goal pressure is mapped as described target temperature.
Method the most according to claim 1, it is characterised in that according to described target temperature and described Intermediate Heat Exchanger
Temperature computation described in the target frequency of frequency-changeable compressor include:
Obtaining the first temperature difference and the second temperature difference, wherein, described first temperature difference is described mesh in current period
Temperature difference between mark temperature and the temperature of described Intermediate Heat Exchanger, described second temperature difference is institute in the previous cycle
Stating the temperature difference between the temperature of target temperature and described Intermediate Heat Exchanger, wherein, the described previous cycle is described
A cycle adjacent before current period；
It is calculated frequency variation according to described first temperature difference and described second temperature difference；
Obtain the running frequency of described frequency-changeable compressor；And
The target frequency of described frequency-changeable compressor is calculated according to described frequency variation and described running frequency.
Method the most according to claim 2, it is characterised in that by described target frequency to described frequency-changeable compressor
Frequency be adjusted including:
The temperature detecting described Intermediate Heat Exchanger is the most identical with described target temperature；
If the temperature of described Intermediate Heat Exchanger differs with described target temperature, then judge described Intermediate Heat Exchanger
Temperature whether more than described target temperature；
When the temperature of described Intermediate Heat Exchanger is more than described target temperature, control institute by described frequency variation
State frequency-changeable compressor and reduce frequency；And
When the temperature of described Intermediate Heat Exchanger is less than described target temperature, control institute by described frequency variation
State frequency-changeable compressor and improve frequency.
The most according to the method in any one of claims 1 to 3, it is characterised in that by described target frequency to institute
The frequency stating frequency-changeable compressor is adjusted, and by being adjusted regulating to the frequency of described frequency-changeable compressor
The temperature of described Intermediate Heat Exchanger is until the temperature of described Intermediate Heat Exchanger is that described target temperature includes:
The temperature detecting described Intermediate Heat Exchanger is the most identical with described target temperature；
If the temperature of described Intermediate Heat Exchanger differs with described target temperature, then continue to calculate described target frequency
Rate, and according to continuing calculated target frequency, the frequency of described frequency-changeable compressor is adjusted, until institute
The temperature stating Intermediate Heat Exchanger is identical with described target temperature.
5. the frequency regulation arrangement of frequency-changeable compressor in heat pump, it is characterised in that described heat pump bag
Include Intermediate Heat Exchanger and frequency-changeable compressor, it is characterised in that including:
Acquiring unit, for obtaining the target temperature of described Intermediate Heat Exchanger；
Detector unit, for detecting the temperature of described Intermediate Heat Exchanger；
Computing unit, for the mesh according to described target temperature with frequency-changeable compressor described in the temperature computation detected
Mark frequency；And
Regulation unit, for being adjusted the frequency of described frequency-changeable compressor by described target frequency, and is led to
Cross the frequency to described frequency-changeable compressor and be adjusted regulating the temperature of described Intermediate Heat Exchanger until described centre
The temperature of heat exchanger is described target temperature；
Described heat pump also includes that vaporizer and condenser, described acquiring unit include:
Acquisition module, for gathering temperature and the temperature of described condenser of described vaporizer；
First mapping block, for by the pressure that temperature map is described vaporizer of described vaporizer, by described
The temperature map of condenser is the pressure of described condenser；
First computing module, for the pressure according to described condenser and the calculation of pressure target pressure of described vaporizer
Power；And
Second mapping block, for being mapped as described target temperature by calculated goal pressure.
Device the most according to claim 5, it is characterised in that described computing unit includes:
First acquisition module, for obtaining the first temperature difference and the second temperature difference, wherein, described first temperature difference
For the temperature difference between target temperature described in current period and the temperature of described Intermediate Heat Exchanger, described second temperature
Degree difference is temperature difference between described target temperature and the temperature of described Intermediate Heat Exchanger in the previous cycle, wherein,
The described previous cycle is a cycle adjacent before described current period；
Second computing module, becomes for being calculated frequency according to described first temperature difference and described second temperature difference
Change amount；
Second acquisition module, for obtaining the running frequency of described frequency-changeable compressor；And
3rd computing module, for calculating described frequency conversion compression according to described frequency variation and described running frequency
The target frequency of machine.
Device the most according to claim 6, it is characterised in that described regulation unit includes:
First detection module is the most identical with described target temperature for detecting the temperature of described Intermediate Heat Exchanger；
Judge module, for when the temperature of described Intermediate Heat Exchanger differs with described target temperature, it is judged that institute
Whether state the temperature of Intermediate Heat Exchanger more than described target temperature；
Frequency reducing module, for when the temperature of described Intermediate Heat Exchanger is more than described target temperature, by described frequency
Rate variable quantity controls described frequency-changeable compressor and reduces frequency；And
Rise frequency module, for when described Intermediate Heat Exchanger temperature is less than described target temperature, by described frequency
Variable quantity controls described frequency-changeable compressor and improves frequency.
Device the most according to claim 5, it is characterised in that described regulation unit includes:
Second detection module is the most identical with described target temperature for detecting the temperature of described Intermediate Heat Exchanger；
Continue module, for when the temperature of described Intermediate Heat Exchanger differs with described target temperature, continuing meter
Calculate described target frequency, and according to continuing calculated target frequency, the frequency of described frequency-changeable compressor is carried out
Regulation, until the temperature of described Intermediate Heat Exchanger is identical with described target temperature.
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| CN104266424B (en) * | 2014-09-18 | 2016-11-30 | 广东芬尼克兹节能设备有限公司 | A kind of heat pump frequency-changing control system and method |
| CN105241144B (en) * | 2015-11-12 | 2017-12-26 | 珠海格力电器股份有限公司 | Shutdown method and system for low-temperature unit, low-temperature unit and refrigeration system |
| TWI628035B (en) * | 2017-08-09 | 2018-07-01 | 財團法人工業技術研究院 | Control system and method for improving thermal stability |
| CN110039970A (en) * | 2019-03-04 | 2019-07-23 | 青岛海尔空调器有限总公司 | The control method of car air-conditioner |
| CN111174388B (en) * | 2020-01-03 | 2020-12-15 | 珠海格力电器股份有限公司 | Operation control method and device, storage medium and multi-split system |
| CN112413973B (en) * | 2020-11-25 | 2021-10-08 | 珠海格力电器股份有限公司 | Control method of refrigerated cabinet and refrigerating system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0599484A (en) * | 1991-07-12 | 1993-04-20 | Mitsubishi Electric Corp | Operation controller for air-conditioning machine |
| CN1427211A (en) * | 2001-12-17 | 2003-07-02 | 乐金电子(天津)电器有限公司 | Refrigeration control method of air conditioner |
| CN202411963U (en) * | 2011-12-20 | 2012-09-05 | Tcl空调器(中山)有限公司 | Air conditioning device of water chiller |
| CN102734994A (en) * | 2012-05-21 | 2012-10-17 | 佛山市顺德区和而泰电子科技有限公司 | Method and system for controlling frequency conversion refrigerant temperature of refrigeration system |
| CN103185420A (en) * | 2011-12-29 | 2013-07-03 | 三菱电机株式会社 | Heat pump system and control method of heat pump apparatus |
| CN103459944A (en) * | 2011-02-17 | 2013-12-18 | 洛基研究公司 | Cascade floating intermediate temperature heat pump system |
-
2014
- 2014-06-05 CN CN201410247398.9A patent/CN104006592B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0599484A (en) * | 1991-07-12 | 1993-04-20 | Mitsubishi Electric Corp | Operation controller for air-conditioning machine |
| CN1427211A (en) * | 2001-12-17 | 2003-07-02 | 乐金电子(天津)电器有限公司 | Refrigeration control method of air conditioner |
| CN103459944A (en) * | 2011-02-17 | 2013-12-18 | 洛基研究公司 | Cascade floating intermediate temperature heat pump system |
| CN202411963U (en) * | 2011-12-20 | 2012-09-05 | Tcl空调器(中山)有限公司 | Air conditioning device of water chiller |
| CN103185420A (en) * | 2011-12-29 | 2013-07-03 | 三菱电机株式会社 | Heat pump system and control method of heat pump apparatus |
| CN102734994A (en) * | 2012-05-21 | 2012-10-17 | 佛山市顺德区和而泰电子科技有限公司 | Method and system for controlling frequency conversion refrigerant temperature of refrigeration system |
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