CN106766214A - A kind of water temperature frequency modulation control method - Google Patents
A kind of water temperature frequency modulation control method Download PDFInfo
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- CN106766214A CN106766214A CN201610995089.9A CN201610995089A CN106766214A CN 106766214 A CN106766214 A CN 106766214A CN 201610995089 A CN201610995089 A CN 201610995089A CN 106766214 A CN106766214 A CN 106766214A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H4/00—Fluid heaters characterised by the use of heat pumps
- F24H4/02—Water heaters
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- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
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- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a kind of water temperature frequency modulation control method, comprise the following steps：Whether detection inflow temperature is in the range of the positive and negative return difference of the startup return difference temperature of design temperature, if, then run according to default starting up's frequency, and at interval of a frequency regulating cycle, whether the current inflow temperature of detection exceeds the positive and negative return difference scope of the startup return difference temperature of design temperature, if so, then performing lower step；Conversely, being then adjusted to the running frequency of unit according to the current operational mode of unit.The present invention is changed by water temperature and water temperature rate of change is come Intelligent adjustment machine class frequency, it is to avoid carried out the problem that frequency modulation increases by unit efficiency reduction and energy consumption caused by the inapplicable current environment of setting value by PID in the past；And the present invention uses water temperature frequency modulation, the problem that unit durability reduction and energy consumption increase caused by machine are frequently stopped in fixed-frequency control unit thermostatic process is can solve.In the composite can be widely applied to heat pump.
Description
Technical field
The present invention relates to frequency modulation control technical field, more particularly to a kind of water temperature frequency modulation control method.
Background technology
Existing swimming pool heat pump control is generally divided into fixed-frequency control and VFC, although both controls all meet swimming
Control requirement during the operation of heat pump of pond, but still there is problems with to occur：
1., using the swimming pool heat pump of fixed-frequency control, often since it is desired that maintaining water temperature constant and frequently stopping machine, not only have impact on
Unit service life, and the energy of consumption is high；
2., using the swimming pool heat pump of VFC, VFC is generally carried out using PID, but most PID control at present
All it is to set P values, I values and D values based on experience value, can be thus led because setting P values, I values and D values be not suitable with current environment
The unit operation efficiency of cause is impacted and energy consumption increases；
3. the swimming pool heat pump of conventional VFC, constant temperature can be determined when according to target temperature and run time and is shut down, this
Sample is reached when target temperature, and run time is not up to, it is necessary to which constant temperature is continued to run with, it is easy to energy consumption can be caused to increase.
The content of the invention
In order to solve the above-mentioned technical problem, unit durability can be extended it is an object of the invention to provide one kind, and reduces energy consumption
A kind of water temperature frequency modulation control method.
The technical solution used in the present invention is：
A kind of water temperature frequency modulation control method, comprises the following steps：
When A, compressor start, whether inflow temperature T is in the range of the positive and negative return difference of the startup return difference temperature of design temperature for detection,
If so, then performing step B；Conversely, then performing step C；
B, compressor run according to default starting up's frequency, and at interval of a frequency regulating cycle, detection is current to enter
Whether coolant-temperature gage T exceeds the positive and negative return difference scope of the startup return difference temperature of design temperature, if so, then performing step C；Conversely, then
Current running frequency is lifted into default increment；
C, real-time detection inflow temperature T and water temperature rate of change S, and according to the current operational mode of unit to the operation of unit frequently
Rate is adjusted, wherein, described operational mode includes refrigeration mode, heating mode and automatic mode.
Used as a kind of described water temperature frequency modulation control further improvements in methods, the automatic mode includes：
C11, according to inflow temperature T and automatic target temperature R03, judge the operational mode of unit；
C12, according to the current operational mode of unit and inflow temperature T, the operational mode to unit is switched over.
Used as a kind of described water temperature frequency modulation control further improvements in methods, the step C11 includes：
As R03-R0 ＜ T ＜ R03+R0, if environment temperature is less than inflow temperature T, unit enters heating mode, and then controls
Then compressor adjusts the running frequency of compressor using f5 as running frequency according to heating mode frequency controlling step；Conversely,
Then unit enters refrigeration mode, and then control compressor, using f5 as running frequency, is then walked according to refrigeration mode FREQUENCY CONTROL
The running frequency of rapid regulation compressor, wherein, f5 is automatic mode frequency, and R0 represents automatic mode value range；
As T≤R03-R0, then unit enters heating mode；
As T >=R03+R0, then unit enters refrigeration mode.
Used as a kind of described water temperature frequency modulation control further improvements in methods, the step C12 includes：
When the current operational mode of unit is heating mode：
When current water inlet water temperature T >=R03+R04 is consecutively detected in section of multiple time delay constant temperature downtimes, then unit enters
Constant temperature is shut down, wherein, R04 represents that constant temperature shuts down return difference temperature；
When inflow temperature T is reduced to R03, the running frequency of compressor is controlled with the time of rated frequency operation setting, according to entering
The change that heats of water water temperature T is adjusted to the running frequency of compressor；
As inflow temperature T >=R03+ (R04+0.6 DEG C), then switch mode is needed, the operational mode of unit is switched into refrigeration mould
Formula；
When the current operational mode of unit is refrigeration mode：
Judge to be consecutively detected current water inlet water temperature T≤R03-R04 in the time period when being shut down in constant temperature, then unit enters constant temperature
Shut down；
When inflow temperature T is raised to R03, the running frequency of compressor is controlled with the time of rated frequency operation setting, according to water inlet
The refrigeration change of water temperature T is adjusted to the running frequency of compressor；
As inflow temperature T≤R03- (R04+0.6 DEG C), then switch mode is needed, the operational mode of unit is switched to and heats mould
Formula.
Used as a kind of described water temperature frequency modulation control further improvements in methods, the refrigeration mode includes：
C21, control compressor are run with refrigeration compressor peak frequency H09, until water inlet water temperature T reaches R01, wherein, R01 tables
Show refrigeration target water temperature；
After C22, water inlet water temperature T reach R01, the time for controlling the running frequency of compressor to be set with rated frequency operation, according to
The refrigeration change of water inlet water temperature T is adjusted to the running frequency of compressor；
C23, when multiple time delay constant temperature downtimes section in be consecutively detected current water inlet water temperature T<R01-R04, then enter
Constant temperature is shut down；
C24, as inflow temperature T >=R01+1 DEG C, control compressor is run with refrigeration compressor peak frequency, until water inlet water temperature T
Reach R01.
As a kind of described water temperature frequency modulation control further improvements in methods, the described refrigeration according to water inlet water temperature T
Change and the running frequency of compressor is adjusted, it is specifically included：
As the changing value △ T of water inlet water temperature T>T1, then control compressor using f1 as running frequency, then according to refrigeration mode frequently
Rate rate-determining steps adjust the running frequency of compressor, wherein, t1 is default refrigeration change threshold, f1=（H09+50）/2；
As the changing value △ T of water inlet water temperature T<- t1, then control compressor using f2 as running frequency, then according to refrigeration mode
Frequency controlling step adjusts the running frequency of compressor, wherein, f2=（H07+50）/ 2, H07 represent the minimum frequency of refrigeration compressor
Rate；
As-t1<△T<T1, then adjust the running frequency of compressor according to refrigeration mode frequency controlling step.
Used as a kind of described water temperature frequency modulation control further improvements in methods, the heating mode includes：
, to heat compressor peak frequency H08 operations, until intaking, water temperature T reaches R02 for C31, control compressor, wherein, R02 tables
Show and heat target water temperature；
After C32, water inlet water temperature T reach R02, the time for controlling the running frequency of compressor to be set with rated frequency operation, according to
The change that heats of water inlet water temperature T is adjusted to the running frequency of compressor；
C33, when multiple time delay constant temperature downtimes section in be consecutively detected current water inlet water temperature T>R02+R04, then enter
Constant temperature is shut down, wherein, R04 represents that constant temperature shuts down return difference temperature；
C34, as inflow temperature T≤R02-1 DEG C, control compressor to heat the operation of compressor peak frequency, until water inlet water temperature T
Reach R02.
As a kind of described water temperature frequency modulation control further improvements in methods, described heating according to water inlet water temperature T
Change and the running frequency of compressor is adjusted, it is specifically included：
As the changing value △ T of water inlet water temperature T>T2, then control compressor using f3 as running frequency, then according to heating mode frequently
Rate rate-determining steps adjust the running frequency of compressor, wherein, t2 heats change threshold, f3=for default（H06+50）/ 2, H06
Expression heats compressor minimum frequency；
As the changing value △ T of water inlet water temperature T<- t2, then control compressor using f4 as running frequency, then according to heating mode
Frequency controlling step adjusts the running frequency of compressor, wherein, f4=（H08+50）/2；
As-t2<△T<T2, then adjust the running frequency of compressor according to heating mode frequency controlling step.
As a kind of described water temperature frequency modulation control further improvements in methods, described refrigeration mode FREQUENCY CONTROL step
Suddenly, it is specifically included：
Work as S>N and T>R01+R, then control compressor that current running frequency is lifted into default variable quantity；
As-n<S<N and T>R01+R, then control compressor that current running frequency is lifted into default variable quantity；
Work as S<- n and T>R01+R, then control the current running frequency of compressor holding constant；
Work as S>N and R01-R≤T≤R01+R, then control compressor that current running frequency is lifted into default variable quantity；
As-n<S<N and R01-R≤T≤R01+R, then control the current running frequency of compressor holding constant；
Work as S<- n and R01-R≤T≤R01+R, then control compressor that current running frequency is reduced into default variable quantity；
Work as S>N and T<R01-R, then control the current running frequency of compressor holding constant；
As-n<S<N and T<R01-R, then control compressor that current running frequency is reduced into default variable quantity；
Work as S<- n and T<R01-R, then control compressor that current running frequency is reduced into default variable quantity；
Wherein, R is default value range, and n is water temperature rate of change threshold value.
As a kind of described water temperature frequency modulation control further improvements in methods, described heating mode FREQUENCY CONTROL step
Suddenly, it is specifically included：
Work as S>N and T>R02+R, then control compressor that current running frequency is reduced into default variable quantity；
As-n<S<N and T>R02+R, then control compressor that current running frequency is reduced into default variable quantity；
Work as S<- n and T>R02+R, then control the current running frequency of compressor holding constant；
Work as S>N and R02-R≤T≤R02+R, then control compressor that current running frequency is reduced into default variable quantity；
As-n<S<N and R02-R≤T≤R02+R, then control the current running frequency of compressor holding constant；
Work as S<- n and R02-R≤T≤R02+R, then control compressor that current running frequency is lifted into default variable quantity；
Work as S>N and T<R02-R, then control the current running frequency of compressor holding constant；
As-n<S<N and T<R02-R, then control compressor that current running frequency is lifted into default variable quantity；
Work as S<- n and T<R02-R, then control compressor that current running frequency is lifted into default variable quantity；
Wherein, R is default value range, and n is water temperature rate of change threshold value.
The beneficial effects of the invention are as follows：
A kind of water temperature frequency modulation control method of the present invention is changed by water temperature and water temperature rate of change is come Intelligent adjustment machine class frequency, keeps away
Exempt to carry out frequency modulation because of unit efficiency reduction and energy consumption increase caused by the inapplicable current environment of setting value by PID in the past
Problem；And the present invention uses water temperature frequency modulation, can solve and frequently stop machine and lead in fixed-frequency control unit thermostatic process
The unit durability reduction of cause and the problem of energy consumption increase.Further, the present invention determined when by the difference of temperature-difference into
Enter constant temperature shutdown, it is to avoid target temperature reaches and run time arrive the energy loss run and cause.
Brief description of the drawings
Specific embodiment of the invention is described further below in conjunction with the accompanying drawings：
The step of Fig. 1 is a kind of water temperature frequency modulation control method of the invention flow chart；
Fig. 2 is the temperature frequency schematic diagram of refrigeration mode in a kind of water temperature frequency modulation control method of the invention；
Fig. 3 is the temperature frequency schematic diagram of heating mode in a kind of water temperature frequency modulation control method of the invention；
Fig. 4 is the temperature frequency schematic diagram of automatic mode in a kind of water temperature frequency modulation control method of the invention.
Specific embodiment
With reference to Fig. 1~Fig. 4, a kind of water temperature frequency modulation control method of the invention is comprised the following steps：
When A, compressor start, whether inflow temperature T is in the range of the positive and negative return difference of the startup return difference temperature of design temperature for detection,
If so, then performing step B；Conversely, then performing step C；
B, compressor run according to default starting up's frequency, and at interval of a frequency regulating cycle, detection is current to enter
Whether coolant-temperature gage T exceeds the positive and negative return difference scope of the startup return difference temperature of design temperature, if so, then performing step C；Conversely, then
Current running frequency is lifted into default increment；
C, real-time detection inflow temperature T and water temperature rate of change S, and according to the current operational mode of unit to the operation of unit frequently
Rate is adjusted, wherein, described operational mode includes refrigeration mode, heating mode and automatic mode.
It is further used as preferred embodiment, the automatic mode includes：
C11, according to inflow temperature T and automatic target temperature R03, judge the operational mode of unit；
C12, according to the current operational mode of unit and inflow temperature T, the operational mode to unit is switched over.
Preferably, in unit running process, if client change automatic target temperature R03, again according to inflow temperature and
The temperature difference of automatic target temperature R03 simultaneously performs step C11, if desired pattern switching, then compressor is closed after being downconverted to 30Hz, this
When four-way valve commutation.
It is further used as preferred embodiment, the step C11 includes：
As R03-R0 ＜ T ＜ R03+R0, if environment temperature is less than inflow temperature T, unit enters heating mode, and then controls
Then compressor adjusts the running frequency of compressor using f5 as running frequency according to heating mode frequency controlling step；Conversely,
Then unit enters refrigeration mode, and then control compressor, using f5 as running frequency, is then walked according to refrigeration mode FREQUENCY CONTROL
The running frequency of rapid regulation compressor, wherein, f5 is automatic mode frequency, and R0 represents automatic mode value range；
As T≤R03-R0, then unit enters heating mode；
As T >=R03+R0, then unit enters refrigeration mode.
It is further used as preferred embodiment, the step C12 includes：
When the current operational mode of unit is heating mode：
When current water inlet water temperature T >=R03+R04 is consecutively detected in section of multiple time delay constant temperature downtimes, then unit enters
Constant temperature is shut down, wherein, R04 represents that constant temperature shuts down return difference temperature；
When inflow temperature T is reduced to R03, the running frequency of compressor is controlled with the time of rated frequency operation setting, according to entering
The change that heats of water water temperature T is adjusted to the running frequency of compressor；
As inflow temperature T >=R03+ (R04+0.6 DEG C), then switch mode is needed, the operational mode of unit is switched into refrigeration mould
Formula；
When the current operational mode of unit is refrigeration mode：
Judge to be consecutively detected current water inlet water temperature T≤R03-R04 in the time period when being shut down in constant temperature, then unit enters constant temperature
Shut down；
When inflow temperature T is raised to R03, the running frequency of compressor is controlled with the time of rated frequency operation setting, according to water inlet
The refrigeration change of water temperature T is adjusted to the running frequency of compressor；
The described refrigeration change according to water inlet water temperature T is adjusted to the running frequency of compressor, and it is specifically included：
As the changing value △ T of water inlet water temperature T>T1, then control compressor using f1 as running frequency, then according to refrigeration mode frequently
Rate rate-determining steps adjust the running frequency of compressor, wherein, t1 is default refrigeration change threshold, f1=（H09+50）/2；
As the changing value △ T of water inlet water temperature T<- t1, then control compressor using f2 as running frequency, then according to refrigeration mode
Frequency controlling step adjusts the running frequency of compressor, wherein, f2=（H07+50）/ 2, H07 represent the minimum frequency of refrigeration compressor
Rate；
As-t1<△T<T1, then adjust the running frequency of compressor according to refrigeration mode frequency controlling step.
The described change that heats according to water inlet water temperature T is adjusted to the running frequency of compressor, and it is specifically included：
As the changing value △ T of water inlet water temperature T>T2, then control compressor using f3 as running frequency, then according to heating mode frequently
Rate rate-determining steps adjust the running frequency of compressor, wherein, t2 heats change threshold, f3=for default（H06+50）/ 2, H06
Expression heats compressor minimum frequency；
As the changing value △ T of water inlet water temperature T<- t2, then control compressor using f4 as running frequency, then according to heating mode
Frequency controlling step adjusts the running frequency of compressor, wherein, f4=（H08+50）/2；
As-t2<△T<T2, then adjust the running frequency of compressor according to heating mode frequency controlling step.
As inflow temperature T≤R03- (R04+0.6 DEG C), then switch mode is needed, the operational mode of unit is switched into system
Heat pattern.
It is further used as preferred embodiment, the refrigeration mode includes：
C21, control compressor are run with refrigeration compressor peak frequency H09, until water inlet water temperature T reaches R01, wherein, R01 tables
Show refrigeration target water temperature；
After C22, water inlet water temperature T reach R01, the time for controlling the running frequency of compressor to be set with rated frequency operation, according to
The refrigeration change of water inlet water temperature T is adjusted to the running frequency of compressor；
C23, when multiple time delay constant temperature downtimes section in be consecutively detected current water inlet water temperature T<R01-R04, then enter
Constant temperature is shut down；
C24, as inflow temperature T >=R01+1 DEG C, control compressor is run with refrigeration compressor peak frequency, until water inlet water temperature T
Reach R01.
It is further used as preferred embodiment, the described operation according to the refrigeration change of water inlet water temperature T to compressor
Frequency is adjusted, and it is specifically included：
As the changing value △ T of water inlet water temperature T>T1, then control compressor using f1 as running frequency, then according to refrigeration mode frequently
Rate rate-determining steps adjust the running frequency of compressor, wherein, t1 is default refrigeration change threshold, f1=（H09+50）/2；
As the changing value △ T of water inlet water temperature T<- t1, then control compressor using f2 as running frequency, then according to refrigeration mode
Frequency controlling step adjusts the running frequency of compressor, wherein, f2=（H07+50）/ 2, H07 represent the minimum frequency of refrigeration compressor
Rate；
As-t1<△T<T1, then adjust the running frequency of compressor according to refrigeration mode frequency controlling step.
It is further used as preferred embodiment, the heating mode includes：
, to heat compressor peak frequency H08 operations, until intaking, water temperature T reaches R02 for C31, control compressor, wherein, R02 tables
Show and heat target water temperature；
After C32, water inlet water temperature T reach R02, the time for controlling the running frequency of compressor to be set with rated frequency operation, according to
The change that heats of water inlet water temperature T is adjusted to the running frequency of compressor；
C33, when multiple time delay constant temperature downtimes section in be consecutively detected current water inlet water temperature T>R02+R04, then enter
Constant temperature is shut down, wherein, R04 represents that constant temperature shuts down return difference temperature；
C34, as inflow temperature T≤R02-1 DEG C, control compressor to heat the operation of compressor peak frequency, until water inlet water temperature T
Reach R02.
It is further used as preferred embodiment, described heats operation of the change to compressor according to water inlet water temperature T
Frequency is adjusted, and it is specifically included：
As the changing value △ T of water inlet water temperature T>T2, then control compressor using f3 as running frequency, then according to heating mode frequently
Rate rate-determining steps adjust the running frequency of compressor, wherein, t2 heats change threshold, f3=for default（H06+50）/ 2, H06
Expression heats compressor minimum frequency；
As the changing value △ T of water inlet water temperature T<- t2, then control compressor using f4 as running frequency, then according to heating mode
Frequency controlling step adjusts the running frequency of compressor, wherein, f4=（H08+50）/2；
As-t2<△T<T2, then adjust the running frequency of compressor according to heating mode frequency controlling step.
It is further used as preferred embodiment, described refrigeration mode frequency controlling step, it is specifically included：
Work as S>N and T>R01+R, then control compressor that current running frequency is lifted into default variable quantity；
As-n<S<N and T>R01+R, then control compressor that current running frequency is lifted into default variable quantity；
Work as S<- n and T>R01+R, then control the current running frequency of compressor holding constant；
Work as S>N and R01-R≤T≤R01+R, then control compressor that current running frequency is lifted into default variable quantity；
As-n<S<N and R01-R≤T≤R01+R, then control the current running frequency of compressor holding constant；
Work as S<- n and R01-R≤T≤R01+R, then control compressor that current running frequency is reduced into default variable quantity；
Work as S>N and T<R01-R, then control the current running frequency of compressor holding constant；
As-n<S<N and T<R01-R, then control compressor that current running frequency is reduced into default variable quantity；
Work as S<- n and T<R01-R, then control compressor that current running frequency is reduced into default variable quantity；
Wherein, R is default value range, and n is water temperature rate of change threshold value.
It is further used as preferred embodiment, described heating mode frequency controlling step, it is specifically included：
Work as S>N and T>R02+R, then control compressor that current running frequency is reduced into default variable quantity；
As-n<S<N and T>R02+R, then control compressor that current running frequency is reduced into default variable quantity；
Work as S<- n and T>R02+R, then control the current running frequency of compressor holding constant；
Work as S>N and R02-R≤T≤R02+R, then control compressor that current running frequency is reduced into default variable quantity；
As-n<S<N and R02-R≤T≤R02+R, then control the current running frequency of compressor holding constant；
Work as S<- n and R02-R≤T≤R02+R, then control compressor that current running frequency is lifted into default variable quantity；
Work as S>N and T<R02-R, then control the current running frequency of compressor holding constant；
As-n<S<N and T<R02-R, then control compressor that current running frequency is lifted into default variable quantity；
Work as S<- n and T<R02-R, then control compressor that current running frequency is lifted into default variable quantity；
Wherein, R is default value range, and n is water temperature rate of change threshold value.
Preferably, in the present invention, under the refrigeration mode during inflow temperature T≤R01-R05-3, most timing 1min are laggard
Enter constant temperature shutdown.
Under the heating mode and during inflow temperature T≤R02+R05+3, shut down into constant temperature after most timing 1min.
In the embodiment of the present invention, refrigeration target water temperature R01, target water temperature R02 is heated and automatic target temperature R03 is 27
DEG C, it is 1 DEG C that constant temperature shuts down return difference temperature R04, heats compressor peak frequency H08 and refrigeration compressor peak frequency H09 is
85Hz, heats compressor minimum frequency H06 and refrigeration compressor minimum frequency H07 for 30Hz, and water temperature rate of change threshold value n is
0.2 DEG C/45min, default value range R is 0.5 DEG C, and default variable quantity is 5Hz.
When S1, compressor start, whether inflow temperature T is in the range of 10 DEG C of design temperature of positive and negative return difference for detection, if
It is then to perform step S2；Conversely, then performing step S3；
S2, compressor run according to default starting up's frequency, and at interval of a frequency regulating cycle, detection is current to enter
Whether coolant-temperature gage T exceeds the positive and negative return difference scope of 10 DEG C of design temperature, if so, then performing step S3；Conversely, then will be current
Running frequency lifts 5Hz；
S3, real-time detection inflow temperature T and water temperature rate of change S, and the operation according to the current operational mode of unit to unit
Frequency is adjusted, wherein, described operational mode includes refrigeration mode, heating mode and automatic mode；
The automatic mode includes：
S311, according to inflow temperature T and automatic target temperature R03, judge the operational mode of unit：
As 28 DEG C of 26 DEG C of ＜ T ＜, if environment temperature is less than inflow temperature T, unit enters heating mode, and then control compression
Then machine adjusts the running frequency of compressor using 30Hz as running frequency according to heating mode frequency controlling step；Conversely, then
Unit enters refrigeration mode, and then control compressor, using 30Hz as running frequency, is then walked according to refrigeration mode FREQUENCY CONTROL
The running frequency of rapid regulation compressor, in the present embodiment, R0=1 DEG C of automatic mode value range, automatic mode frequency f5 is 30Hz；
When T≤26 DEG C, then unit enters heating mode；
When T >=28 DEG C, then unit enters refrigeration mode；
S312, according to the current operational mode of unit and inflow temperature T, the operational mode to unit is switched over：
When the current operational mode of unit is heating mode：
When current water inlet water temperature T >=28 DEG C are consecutively detected in multiple 20min, then unit is shut down into constant temperature；
When inflow temperature T is reduced to 27 DEG C, the running frequency of compressor is controlled with the time of rated frequency operation setting, according to entering
The change that heats of water water temperature T is adjusted to the running frequency of compressor；
When inflow temperature T >=28.6 DEG C, then switch mode is needed, the operational mode of unit is switched into refrigeration mode；
When the current operational mode of unit is refrigeration mode：
When current water inlet water temperature T≤26 DEG C are consecutively detected in 3min, then unit is shut down into constant temperature；
When inflow temperature T is raised to 27 DEG C, the running frequency of compressor is controlled with the time of rated frequency operation setting, according to water inlet
The refrigeration change of water temperature T is adjusted to the running frequency of compressor；
When inflow temperature T≤25.4 DEG C, then switch mode is needed, the operational mode of unit is switched into heating mode.
The refrigeration mode includes：
S321, control compressor are run with 85Hz, until water inlet water temperature T reaches 27 DEG C；
After S322, water inlet water temperature T reach 27 DEG C, the running frequency of compressor is controlled with the time of rated frequency operation setting, root
The running frequency of compressor is adjusted according to the refrigeration change of water inlet water temperature T：
As the changing value △ T of water inlet water temperature T>0.2 DEG C, then compressor is controlled using 67.5Hz as running frequency, then according to system
Chill formula frequency controlling step adjusts the running frequency of compressor；
As the changing value △ T of water inlet water temperature T<- 0.2 DEG C, then compressor is controlled using 40Hz as running frequency, then according to refrigeration
Mode frequency rate-determining steps adjust the running frequency of compressor；
When -0.2 DEG C<△T<0.2 DEG C, then the running frequency of compressor is adjusted according to refrigeration mode frequency controlling step；
S323, when being consecutively detected current water inlet water temperature T in multiple 20min<26 DEG C, then enter constant temperature and shut down；
S324, when inflow temperature T >=28 DEG C, control compressor is run with 85Hz, until water inlet water temperature T reaches 27 DEG C.
The heating mode includes：
S331, control compressor are run with 85Hz, until water inlet water temperature T reaches 27 DEG C；
After S332, water inlet water temperature T reach 27 DEG C, the running frequency of compressor is controlled with the time of rated frequency operation setting, root
The running frequency of compressor is adjusted according to the change that heats of water inlet water temperature T：
As the changing value △ T of water inlet water temperature T>0.2 DEG C, then compressor is controlled using 67.5Hz as running frequency, then according to system
Heat pattern frequency controlling step adjusts the running frequency of compressor；
As the changing value △ T of water inlet water temperature T<, then compressor is controlled using 40Hz as running frequency, then according to heating by -0.2 DEG C
Mode frequency rate-determining steps adjust the running frequency of compressor；
When -0.2 DEG C<△T<0.2 DEG C, then the running frequency of compressor is adjusted according to heating mode frequency controlling step；
S333, when being consecutively detected current water inlet water temperature T in multiple 20min>28 DEG C, then enter constant temperature and shut down；
S334, when inflow temperature T≤26 DEG C, control compressor is run with 85Hz, until water inlet water temperature T reaches 27 DEG C.
Described refrigeration mode frequency controlling step, it is specifically included：
Work as S>N and T>27.5 DEG C, then control compressor that current running frequency is lifted into 5Hz；
As-n<S<N and T>27.5 DEG C, then control compressor that current running frequency is lifted into 5Hz；
Work as S<- n and T>27.5 DEG C, then control the current running frequency of compressor holding constant；
Work as S>N and 26.5 DEG C≤T≤27.5 DEG C, then control compressor that current running frequency is lifted into 5Hz；
As-n<S<N and 26.5 DEG C≤T≤27.5 DEG C, then control the current running frequency of compressor holding constant；
Work as S<- n and 26.5 DEG C≤T≤27.5 DEG C, then control compressor that current running frequency is reduced into 5Hz；
Work as S>N and T<26.5 DEG C, then control the current running frequency of compressor holding constant；
As-n<S<N and T<26.5 DEG C, then control compressor that current running frequency is reduced into 5Hz；
Work as S<- n and T<26.5 DEG C, then control compressor that current running frequency is reduced into 5Hz.
Described heating mode frequency controlling step, it is specifically included：
Work as S>N and T>27.5 DEG C, then control compressor that current running frequency is reduced into 5Hz；
As-n<S<N and T>27.5 DEG C, then control compressor that current running frequency is reduced into 5Hz；
Work as S<- n and T>27.5 DEG C, then control the current running frequency of compressor holding constant；
Work as S>N and 26.5 DEG C≤T≤27.5 DEG C, then control compressor that current running frequency is reduced into 5Hz；
As-n<S<N and 26.5 DEG C≤T≤27.5 DEG C, then control the current running frequency of compressor holding constant；
Work as S<- n and 26.5 DEG C≤T≤27.5 DEG C, then control compressor that current running frequency is lifted into 5Hz；
Work as S>N and T<26.5 DEG C, then control the current running frequency of compressor holding constant；
As-n<S<N and T<26.5 DEG C, then control compressor that current running frequency is lifted into 5Hz；
Work as S<- n and T<26.5 DEG C, then control compressor that current running frequency is lifted into 5Hz.
From the foregoing it can be that a kind of water temperature frequency modulation control method of the invention by water temperature change and water temperature rate of change come
Intelligent adjustment machine class frequency, it is to avoid frequency modulation was carried out because of unit caused by the inapplicable current environment of setting value by PID in the past
Efficiency reduction and the problem of energy consumption increase；And the present invention uses water temperature frequency modulation, can solve fixed-frequency control unit constant temperature
During frequently stop the problem of unit durability reduction and energy consumption increase caused by machine.Further, the present invention is by temperature temperature
Poor difference determines when to be shut down into constant temperature, it is to avoid target temperature reaches and run time arrive the energy for running and causing
Lose in source.
Above is preferable implementation of the invention is illustrated, but the invention is not limited to the implementation
Example, those of ordinary skill in the art can also make a variety of equivalent variations or replace on the premise of without prejudice to spirit of the invention
Change, these equivalent deformations or replacement are all contained in the application claim limited range.
Claims (10)
1. a kind of water temperature frequency modulation control method, it is characterised in that comprise the following steps：
When A, compressor start, whether inflow temperature T is in the range of the positive and negative return difference of the startup return difference temperature of design temperature for detection,
If so, then performing step B；Conversely, then performing step C；
B, compressor run according to default starting up's frequency, and at interval of a frequency regulating cycle, detection is current to enter
Whether coolant-temperature gage T exceeds the positive and negative return difference scope of the startup return difference temperature of design temperature, if so, then performing step C；Conversely, then
Current running frequency is lifted into default increment；
C, real-time detection inflow temperature T and water temperature rate of change S, and according to the current operational mode of unit to the operation of unit frequently
Rate is adjusted, wherein, described operational mode includes refrigeration mode, heating mode and automatic mode.
2. a kind of water temperature frequency modulation control method according to claim 1, it is characterised in that：The automatic mode includes：
C11, according to inflow temperature T and automatic target temperature R03, judge the operational mode of unit；
C12, according to the current operational mode of unit and inflow temperature T, the operational mode to unit is switched over.
3. a kind of water temperature frequency modulation control method according to claim 2, it is characterised in that：The step C11 includes：
As R03-R0 ＜ T ＜ R03+R0, if environment temperature is less than inflow temperature T, unit enters heating mode, and then controls
Then compressor adjusts the running frequency of compressor using f5 as running frequency according to heating mode frequency controlling step；Conversely,
Then unit enters refrigeration mode, and then control compressor, using f5 as running frequency, is then walked according to refrigeration mode FREQUENCY CONTROL
The running frequency of rapid regulation compressor, wherein, f5 is automatic mode frequency, and R0 represents automatic mode value range；
As T≤R03-R0, then unit enters heating mode；
As T >=R03+R0, then unit enters refrigeration mode.
4. a kind of water temperature frequency modulation control method according to claim 2, it is characterised in that：The step C12 includes：
When the current operational mode of unit is heating mode：
When current water inlet water temperature T >=R03+R04 is consecutively detected in section of multiple time delay constant temperature downtimes, then unit enters
Constant temperature is shut down, wherein, R04 represents that constant temperature shuts down return difference temperature；
When inflow temperature T is reduced to R03, the running frequency of compressor is controlled with the time of rated frequency operation setting, according to entering
The change that heats of water water temperature T is adjusted to the running frequency of compressor；
As inflow temperature T >=R03+ (R04+0.6 DEG C), then switch mode is needed, the operational mode of unit is switched into refrigeration mould
Formula；
When the current operational mode of unit is refrigeration mode：
Judge to be consecutively detected current water inlet water temperature T≤R03-R04 in the time period when being shut down in constant temperature, then unit enters constant temperature
Shut down；
When inflow temperature T is raised to R03, the running frequency of compressor is controlled with the time of rated frequency operation setting, according to water inlet
The refrigeration change of water temperature T is adjusted to the running frequency of compressor；
As inflow temperature T≤R03- (R04+0.6 DEG C), then switch mode is needed, the operational mode of unit is switched to and heats mould
Formula.
5. a kind of water temperature frequency modulation control method according to claim 1 or 3 or 4, it is characterised in that：The refrigeration mode bag
Include：
C21, control compressor are run with refrigeration compressor peak frequency H09, until water inlet water temperature T reaches R01, wherein, R01 tables
Show refrigeration target water temperature；
After C22, water inlet water temperature T reach R01, the time for controlling the running frequency of compressor to be set with rated frequency operation, according to
The refrigeration change of water inlet water temperature T is adjusted to the running frequency of compressor；
C23, when multiple time delay constant temperature downtimes section in be consecutively detected current water inlet water temperature T<R01-R04, then enter
Constant temperature is shut down；
C24, as inflow temperature T >=R01+1 DEG C, control compressor is run with refrigeration compressor peak frequency, until water inlet water temperature T
Reach R01.
6. a kind of water temperature frequency modulation control method according to claim 5, it is characterised in that：It is described according to water inlet water temperature T
Refrigeration change the running frequency of compressor is adjusted, it is specifically included：
As the changing value △ T of water inlet water temperature T>T1, then control compressor using f1 as running frequency, then according to refrigeration mode frequently
Rate rate-determining steps adjust the running frequency of compressor, wherein, t1 is default refrigeration change threshold, f1=（H09+50）/2；
As the changing value △ T of water inlet water temperature T<- t1, then control compressor using f2 as running frequency, then according to refrigeration mode
Frequency controlling step adjusts the running frequency of compressor, wherein, f2=（H07+50）/ 2, H07 represent the minimum frequency of refrigeration compressor
Rate；
As-t1<△T<T1, then adjust the running frequency of compressor according to refrigeration mode frequency controlling step.
7. a kind of water temperature frequency modulation control method according to claim 1 or 3 or 4, it is characterised in that：The heating mode bag
Include：
, to heat compressor peak frequency H08 operations, until intaking, water temperature T reaches R02 for C31, control compressor, wherein, R02 tables
Show and heat target water temperature；
After C32, water inlet water temperature T reach R02, the time for controlling the running frequency of compressor to be set with rated frequency operation, according to
The change that heats of water inlet water temperature T is adjusted to the running frequency of compressor；
C33, when multiple time delay constant temperature downtimes section in be consecutively detected current water inlet water temperature T>R02+R04, then enter
Constant temperature is shut down, wherein, R04 represents that constant temperature shuts down return difference temperature；
C34, as inflow temperature T≤R02-1 DEG C, control compressor to heat the operation of compressor peak frequency, until water inlet water temperature T
Reach R02.
8. a kind of water temperature frequency modulation control method according to claim 7, it is characterised in that：It is described according to water inlet water temperature T
The change that heats the running frequency of compressor is adjusted, it is specifically included：
As the changing value △ T of water inlet water temperature T>T2, then control compressor using f3 as running frequency, then according to heating mode frequently
Rate rate-determining steps adjust the running frequency of compressor, wherein, t2 heats change threshold, f3=for default（H06+50）/ 2, H06
Expression heats compressor minimum frequency；
As the changing value △ T of water inlet water temperature T<- t2, then control compressor using f4 as running frequency, then according to heating mode
Frequency controlling step adjusts the running frequency of compressor, wherein, f4=（H08+50）/2；
As-t2<△T<T2, then adjust the running frequency of compressor according to heating mode frequency controlling step.
9. a kind of water temperature frequency modulation control method according to claim 3 or 6, it is characterised in that：Described refrigeration mode is frequently
Rate rate-determining steps, it is specifically included：
Work as S>N and T>R01+R, then control compressor that current running frequency is lifted into default variable quantity；
As-n<S<N and T>R01+R, then control compressor that current running frequency is lifted into default variable quantity；
Work as S<- n and T>R01+R, then control the current running frequency of compressor holding constant；
Work as S>N and R01-R≤T≤R01+R, then control compressor that current running frequency is lifted into default variable quantity；
As-n<S<N and R01-R≤T≤R01+R, then control the current running frequency of compressor holding constant；
Work as S<- n and R01-R≤T≤R01+R, then control compressor that current running frequency is reduced into default variable quantity；
Work as S>N and T<R01-R, then control the current running frequency of compressor holding constant；
As-n<S<N and T<R01-R, then control compressor that current running frequency is reduced into default variable quantity；
Work as S<- n and T<R01-R, then control compressor that current running frequency is reduced into default variable quantity；
Wherein, R is default value range, and n is water temperature rate of change threshold value.
10. a kind of water temperature frequency modulation control method according to claim 3 or 8, it is characterised in that：Described heating mode is frequently
Rate rate-determining steps, it is specifically included：
Work as S>N and T>R02+R, then control compressor that current running frequency is reduced into default variable quantity；
As-n<S<N and T>R02+R, then control compressor that current running frequency is reduced into default variable quantity；
Work as S<- n and T>R02+R, then control the current running frequency of compressor holding constant；
Work as S>N and R02-R≤T≤R02+R, then control compressor that current running frequency is reduced into default variable quantity；
As-n<S<N and R02-R≤T≤R02+R, then control the current running frequency of compressor holding constant；
Work as S<- n and R02-R≤T≤R02+R, then control compressor that current running frequency is lifted into default variable quantity；
Work as S>N and T<R02-R, then control the current running frequency of compressor holding constant；
As-n<S<N and T<R02-R, then control compressor that current running frequency is lifted into default variable quantity；
Work as S<- n and T<R02-R, then control compressor that current running frequency is lifted into default variable quantity；
Wherein, R is default value range, and n is water temperature rate of change threshold value.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107490126A (en) * | 2017-07-26 | 2017-12-19 | 珠海格力电器股份有限公司 | The frequency adjustment method and device of multi-compressor system |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60233443A (en) * | 1984-05-07 | 1985-11-20 | Matsushita Electric Ind Co Ltd | Heat-pump type hot water supplier |
| CN201527097U (en) * | 2009-11-19 | 2010-07-14 | 苏州大学 | Water source heat pump water heater |
| CN102003748A (en) * | 2009-09-01 | 2011-04-06 | 珠海格力电器股份有限公司 | Modular water chilling unit and intelligent control method thereof |
| CN103968554A (en) * | 2013-02-04 | 2014-08-06 | 珠海格力电器股份有限公司 | Method and system for controlling hot water producing operation of heat pumps of double compressors |
| CN104329777A (en) * | 2014-11-19 | 2015-02-04 | 珠海格力电器股份有限公司 | Frequency control method and system |
| CN104359258A (en) * | 2014-11-21 | 2015-02-18 | 珠海格力电器股份有限公司 | Condenser pipe box, condenser, control method, control device and air conditioning unit |
| CN204494893U (en) * | 2015-01-15 | 2015-07-22 | 佛山市顺德区资乐电器有限公司 | A kind of constant-temperature heat pump swimming pool machine |
| CN104833066A (en) * | 2015-04-23 | 2015-08-12 | 广东芬尼克兹节能设备有限公司 | Mode switching method for variable frequency heat pump |
-
2016
- 2016-11-11 CN CN201610995089.9A patent/CN106766214B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60233443A (en) * | 1984-05-07 | 1985-11-20 | Matsushita Electric Ind Co Ltd | Heat-pump type hot water supplier |
| CN102003748A (en) * | 2009-09-01 | 2011-04-06 | 珠海格力电器股份有限公司 | Modular water chilling unit and intelligent control method thereof |
| CN201527097U (en) * | 2009-11-19 | 2010-07-14 | 苏州大学 | Water source heat pump water heater |
| CN103968554A (en) * | 2013-02-04 | 2014-08-06 | 珠海格力电器股份有限公司 | Method and system for controlling hot water producing operation of heat pumps of double compressors |
| CN104329777A (en) * | 2014-11-19 | 2015-02-04 | 珠海格力电器股份有限公司 | Frequency control method and system |
| CN104359258A (en) * | 2014-11-21 | 2015-02-18 | 珠海格力电器股份有限公司 | Condenser pipe box, condenser, control method, control device and air conditioning unit |
| CN204494893U (en) * | 2015-01-15 | 2015-07-22 | 佛山市顺德区资乐电器有限公司 | A kind of constant-temperature heat pump swimming pool machine |
| CN104833066A (en) * | 2015-04-23 | 2015-08-12 | 广东芬尼克兹节能设备有限公司 | Mode switching method for variable frequency heat pump |
Cited By (17)
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|---|---|---|---|---|
| CN107490126A (en) * | 2017-07-26 | 2017-12-19 | 珠海格力电器股份有限公司 | The frequency adjustment method and device of multi-compressor system |
| CN108224702A (en) * | 2017-12-18 | 2018-06-29 | 青岛海尔空调电子有限公司 | For the control method and device of central air conditioner system |
| CN108224702B (en) * | 2017-12-18 | 2020-08-18 | 青岛海尔空调电子有限公司 | Control method and device for central air-conditioning system |
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| CN108507171B (en) * | 2018-03-15 | 2020-09-04 | 珠海格力电器股份有限公司 | Control method and device for heat pump water heater |
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| CN111435048A (en) * | 2019-01-11 | 2020-07-21 | 青岛经济技术开发区海尔热水器有限公司 | Frequency control method of variable frequency compressor and heat pump unit |
| CN110160126A (en) * | 2019-04-18 | 2019-08-23 | 广东智科电子股份有限公司 | Frequency conversion heating multi-connected machine control method, device, equipment and storage medium |
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