CN109059192A - The control method and device of compressor winding heating - Google Patents
The control method and device of compressor winding heating Download PDFInfo
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- CN109059192A CN109059192A CN201810637510.8A CN201810637510A CN109059192A CN 109059192 A CN109059192 A CN 109059192A CN 201810637510 A CN201810637510 A CN 201810637510A CN 109059192 A CN109059192 A CN 109059192A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
- F24F11/42—Defrosting; Preventing freezing of outdoor units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. circuits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention proposes a kind of control method and device of compressor winding heating, method includes the following steps: obtaining the temperature of outdoor condenser；According to the temperature of outdoor condenser, the heated current of compressor winding is adjusted.The present invention during defrost by increasing compressor winding heating function, make refrigerant that heat absorption are transferred to outdoor condenser by winding, to accelerate outdoor unit defrost process, shorten the defrost time, and then comfort is improved, improve the average heating capacity in the low-temperature heating defrost period.
Description
Technical field
The present invention relates to Compressor Technology field, in particular to a kind of control method and device of compressor winding heating.
Background technique
Low-temperature heating is always the technological difficulties of frequency-conversion air-conditioning system, including spray painting increasing enthalpy frequency-changeable compressor technology, twin-stage
The technologies such as compression frequency-changeable compressor technology are provided to solve the problems, such as low-temperature heating.
Currently, to improve low-temperature heating ability, can only generally be improved in the case where not using special designing compressor
Compressor rotary speed.However, there are the upper limits for compressor running speed, revolving speed is excessively high to be will affect compressor mechanical wear and fails.It is low
Temperature heating influences comfort, while reducing low since there are defrost process, defrost process causes indoor unit leaving air temp to decline
Average heating capacity in the temperature heating defrost period.
Summary of the invention
The present invention is directed to solve at least to a certain extent it is above-mentioned in the related technology the technical issues of one of.
For this purpose, an object of the present invention is to provide a kind of control method of compressor winding heating, this method passes through
Increase compressor winding heating function during defrost, makes refrigerant that heat absorption are transferred to outdoor unit condensation by winding
Device to accelerate outdoor unit defrost process, shorten the defrost time, and then improves comfort, improves low-temperature heating defrost week
Average heating capacity in phase.
It is another object of the present invention to the control devices for proposing a kind of compressor winding heating.
Third object of the present invention is to propose a kind of electronic equipment.
Fourth object of the present invention is to propose a kind of non-transitorycomputer readable storage medium.
To achieve the goals above, the embodiment of first aspect present invention proposes a kind of control of compressor winding heating
Method, comprising the following steps: obtain the temperature of outdoor condenser；According to the temperature of the outdoor condenser, compression is adjusted
The heated current of machine winding.
The control method of compressor winding heating according to an embodiment of the present invention, according to the outdoor condenser got
Temperature adjusts the heated current of compressor winding, i.e., increases compressor winding heating function during defrost, pass through refrigerant
Heat absorption is transferred to outdoor condenser by winding, to accelerate outdoor unit defrost process, shorten the defrost time, and then is improved
Comfort, improves the average heating capacity in the low-temperature heating defrost period.
In addition, the control method of compressor winding heating according to the above embodiment of the present invention can also have following add
Technical characteristic:
In some instances, the temperature for obtaining outdoor condenser, comprising: obtain the reality of the outdoor condenser
Border temperature and target temperature；The temperature according to the outdoor condenser adjusts the heated current of compressor winding, packet
Include: according to the actual temperature and the target temperature, closed loop adjusts the heated current.
In some instances, described according to the actual temperature and the target temperature, closed loop adjusts the heated current,
It include: to adjust the heated current when the actual temperature is equal to or less than the first condenser temperature threshold value and reach default
Heated current maximum value, the heated current maximum value is that the corresponding heating of minimum value of compressor direct-axis current is electric
Stream；When the actual temperature is greater than the first condenser temperature threshold value, and is less than the target temperature, the heating is adjusted
For electric current with the difference linear change of the target temperature and the actual temperature, the actual temperature is lower, the heated current
It is bigger；When the actual temperature is equal to or more than the target temperature, the heated current is adjusted equal to zero.
In some instances, further includes: the heated current is added with weak magnetic control electric current, obtains the first weak magnetic electricity
Stream；Clipping control is carried out to first weak magnetoelectricity stream, obtains the second weak magnetoelectricity stream, the upper limit of the clipping control is equal to zero,
The lower limit of the clipping control is equal to the minimum value of compressor direct-axis current.
In some instances, further includes: the difference for calculating voltage limiting threshold and output voltage amplitude obtains weak magnetic voltage
Difference；The weak magnetic voltage difference is adjusted, the weak magnetic control electric current is obtained.
In some instances, further includes: if air-conditioning is in defrost pattern, and the temperature of weak magnetic control module is less than overheat limit
Frequency threshold value, and compressor input current is less than overcurrent frequency limit threshold value, and delivery temperature is less than exhaust frequency limit threshold value, and compressor is transported
Line frequency is equal to or more than the maximum running frequency of corresponding operating condition, then opens compressor winding heating function, obtain the room
The temperature of outer machine condenser adjusts the heated current according to the temperature of the outdoor condenser.
In some instances, if air-conditioning is in the heating mode, and the temperature of the weak magnetic control module be equal to or
Greater than the overheat frequency limit threshold value perhaps the compressor input current be equal to or more than the overcurrent frequency limit threshold value or
The delivery temperature is equal to or more than the exhaust frequency limit threshold value, then judges whether the compressor winding heating function has been opened
It opens；If having turned on, be gradually reduced the heated current, and when the heated current is equal to zero, exit the compressor around
Group heating function；If not opening, the compressor operating frequency is gradually decreased.
In some instances, further includes: if air-conditioning is in the heating mode, and the temperature of the weak magnetic control module is small
In the overheat frequency limit threshold value, and the compressor input current is less than the overcurrent frequency limit threshold value, and delivery temperature is less than row
Gas frequency limit threshold value, and the compressor operating frequency is less than the maximum running frequency of corresponding operating condition, then judge the compressor around
Whether group heating function has turned on；If having turned on, it is gradually reduced the heated current, and be equal to zero in the heated current
When, exit the compressor winding heating function.
The embodiment of second aspect of the present invention also proposed a kind of control device of compressor winding heating, comprising: obtain
Module, for obtaining the temperature of outdoor condenser；Adjustment module is adjusted for the temperature according to the outdoor condenser
The heated current of compressor winding.
The control device of compressor winding heating according to an embodiment of the present invention, according to the outdoor condenser got
Temperature adjusts the heated current of compressor winding, i.e., increases compressor winding heating function during defrost, pass through refrigerant
Heat absorption is transferred to outdoor condenser by winding, to accelerate outdoor unit defrost process, shorten the defrost time, and then is improved
Comfort, improves the average heating capacity in the low-temperature heating defrost period.
In addition, the control device of compressor winding heating according to the above embodiment of the present invention can also have following add
Technical characteristic:
In some instances, the actual temperature and target temperature for obtaining module and being used to obtain the outdoor condenser
Degree；The adjustment module is used for according to the actual temperature and the target temperature, and closed loop adjusts the heated current.
In some instances, the adjustment module is used to be equal to or less than the first condenser temperature when the actual temperature
When threshold value, adjusts the heated current and reach preset heated current maximum value, the heated current maximum value is that compressor is straight
The corresponding heated current of the minimum value of shaft current, and when the actual temperature is greater than the first condenser temperature threshold
When being worth, and being less than the target temperature, the heated current is adjusted with the difference line of the target temperature and the actual temperature
Property variation, the actual temperature is lower, and the heated current is bigger, and when the actual temperature be equal to or more than the mesh
When marking temperature, the heated current is adjusted equal to zero.
In some instances, the adjustment module is also used to for the heated current being added with weak magnetic control electric current, obtains
First weak magnetoelectricity stream, and clipping control is carried out to first weak magnetoelectricity stream, the second weak magnetoelectricity stream is obtained, the clipping control
The upper limit is equal to zero, and the lower limit of the clipping control is equal to the minimum value of compressor direct-axis current.
In some instances, the adjustment module is used to calculate the difference of voltage limiting threshold and output voltage amplitude, obtains
It is adjusted to weak magnetic voltage difference, and to the weak magnetic voltage difference, obtains the weak magnetic control electric current.
In some instances, the adjustment module is also used to be in defrost pattern, and the temperature of weak magnetic control module when air-conditioning
Degree is less than overheat frequency limit threshold value, and compressor input current is less than overcurrent frequency limit threshold value, and delivery temperature is less than exhaust frequency limit threshold
Value, and when compressor operating frequency is equal to or more than the maximum running frequency of corresponding operating condition, it opens compressor winding and heats function
Can, the temperature of the outdoor condenser is obtained, according to the temperature of the outdoor condenser, adjusts the heated current.
In some instances, if the adjustment module is also used to be in the heating mode, and the weak magnetic control when air-conditioning
The temperature of molding block is equal to or more than the overheat frequency limit threshold value or the compressor input current is equal to or more than institute
When stating overcurrent frequency limit threshold value or the delivery temperature equal to or more than the exhaust frequency limit threshold value, the compressor is judged
Whether winding heating function has turned on；When the compressor winding heating function has turned on, it is gradually reduced the heated current,
And when the heated current is equal to zero, the compressor winding heating function is exited；When the compressor winding heating function
When not opening, the compressor operating frequency is gradually decreased.
In some instances, the adjustment module is also used to be in the heating mode when air-conditioning, and the weak magnetic controls
The temperature of module is less than the overheat frequency limit threshold value, and the compressor input current is less than the overcurrent frequency limit threshold value, and arranges
Temperature degree is less than exhaust frequency limit threshold value, and when the compressor operating frequency is less than the maximum running frequency of corresponding operating condition, judgement
Whether the compressor winding heating function has turned on, and when the compressor winding heating function has turned on, is gradually reduced
The heated current, and when the heated current is equal to zero, exit the compressor winding heating function.
The embodiment of third aspect present invention also proposed a kind of electronic equipment, comprising: memory, processor and be stored in
On the memory and the computer program that can run on the processor, the processor execute described program, to realize
The control method of the heating of compressor winding described in the above embodiment of the present invention.
Electronic equipment according to an embodiment of the present invention, according to the temperature of the outdoor condenser got adjust compressor around
The heated current of group increases compressor winding heating function during defrost, passes refrigerant by heat absorption by winding
It is handed to outdoor condenser, to accelerate outdoor unit defrost process, shorten the defrost time, and then comfort is improved, improves
Average heating capacity in the low-temperature heating defrost period.
The embodiment of fourth aspect present invention also proposed a kind of non-transitorycomputer readable storage medium, store thereon
There is computer program, which is executed by processor, to add for realizing compressor winding described in the above embodiment of the present invention
The control method of heat.
Non-transitorycomputer readable storage medium according to an embodiment of the present invention, according to the outdoor condenser got
Temperature adjust the heated current of compressor winding, i.e., increase compressor winding heating function during defrost, keep refrigerant logical
It crosses winding and heat absorption is transferred to outdoor condenser, thus accelerate outdoor unit defrost process, shorten the defrost time, Jin Ergai
It has been apt to comfort, has improved the average heating capacity in the low-temperature heating defrost period.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is the flow chart of the control method of compressor winding heating according to an embodiment of the invention；
Fig. 2 is the control circuit topology schematic diagram of compressor according to an embodiment of the invention；
Fig. 3 is compressor coordinate transformation relation schematic diagram according to an embodiment of the invention；
Fig. 4 is the vector controlled block diagram of compressor according to an embodiment of the invention；
Fig. 5 is the control method schematic diagram of classical weak magnetic control module；
Fig. 6 is the control method schematic diagram of weak magnetic control module according to an embodiment of the invention；
Fig. 7 is winding heating function control flow schematic diagram during defrost according to an embodiment of the invention；
Fig. 8 is compressor winding heating-current adjustment mode diagram according to an embodiment of the invention；
Fig. 9 is the structural block diagram of the control device of compressor winding heating according to an embodiment of the invention.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
The control method and device of compressor winding heating according to an embodiment of the present invention are described below in conjunction with attached drawing.
Fig. 1 is the flow chart of the control method of compressor winding heating according to an embodiment of the present invention.As shown in Figure 1,
Method includes the following steps:
Step S1: the temperature of outdoor condenser is obtained.
Step S2: according to the temperature of outdoor condenser, the heated current of compressor winding is adjusted.
Wherein, as shown in connection with fig. 2, the control circuit topology of lower compressor (i.e. frequency-changeable compressor), the compression are introduced first
The control circuit topology of machine includes the three-phase bridge driving circuit and frequency-changeable compressor for controlling chip, power switch tube composition.Its
In, driving circuit can be by 6 IGBT (Insulated Gate Bipolar Transistor, insulated gate bipolar crystal
Pipe) composition or by 6 MOSFET (Metallic Oxide Semiconductor Field Effecttransistor,
Metal Oxide Semiconductor Field Effect Transistor) form or use intelligent power module (Intelligent Power
Module, IPM), while there is anti-paralleled diode.It controls chip and exports driven compressor signal, driven compressor signal is logical
Overdrive circuit controls the operation of frequency-changeable compressor, carries out compressor by current sensor (three or two or one)
Phase current sensing.Frequency-changeable compressor is, for example, the compressor of IPM synchronous motor driving.
Further, Fig. 3 is the coordinate relational graph of frequency-changeable compressor vector controlled, and Fig. 4 is frequency-changeable compressor without sensing
Device vector controlled block diagram.In conjunction with Fig. 3 and Fig. 4, in vector controlled, given rotating speedWith estimation revolving speedBy PI
(proportional integral) controller, output torque give Te *, according to torque reference Te *With torque current COEFFICIENT KtWith
And weak magnetoelectricity stream ifwcFriendship is calculated by torque capacity current controller (Maximum Torque Per Ampere, MTPA)
Shaft current (q shaft current) is givenIt is given with direct-axis current (d shaft current)It is given according to d shaft current, q shaft current is given and anti-
Supply current id/iqBy vector controlled output voltage ud/uq, then control output voltage u is obtained by PARK inverse transformationα/uβ, then
PWM (Pulse Width Modulation, pulse are exported by space vector modulation (SpaceVetorModulation, SVM)
Width modulated) waveform, frequency-changeable compressor is driven by power module.Compressor three-phase current is detected by current sensor, and
It converts to obtain feedback current i by CLARKEα/iβ, change to obtain feedback current i using PARKd/iq.According to output voltage uα/
uβWith feedback current iα/iβAnd the parameter of electric machine (electric motor resistance R in compressors, d-axis inductance LdWith axis inductor Lq), pass through nothing
The available estimation revolving speed of sensor algorithm for estimatingWith estimation electrical angle
In one embodiment of the invention, the temperature of the acquisition outdoor condenser in step S1, specifically includes: obtaining
Actual temperature (the i.e. T of outdoor condenserp) and target temperature is (i.e.).Based on this, being condensed according to outdoor unit in step S2
The temperature of device adjusts the heated current of compressor winding, i.e. iheat, specifically include: according to actual temperature TpAnd target temperature
Closed loop adjusts heated current iheat。
Wherein, above-mentioned according to actual temperature TpAnd target temperatureClosed loop adjusts heated current iheat, it specifically includes:
As actual temperature TpEqual to or less than the first condenser temperature threshold value TshrWhen, adjust heated current iheatReach preset heating
Current maxima, heated current maximum value are the corresponding heated current of minimum value of compressor direct-axis current；As actual temperature Tp
Greater than the first condenser temperature threshold value Tshr, and it is less than target temperatureWhen, adjust heated current iheatWith target temperatureWith
Actual temperature TpDifference linear change, actual temperature TpIt is lower, heated current iheatIt is bigger；As actual temperature TpBe equal to or
Greater than target temperatureWhen, adjust heated current iheatEqual to zero.
In other words, the target temperature according to outdoor condenserWith actual temperature TpDifference adjust heated current
iheat: as the actual temperature T of outdoor condenserpReach target temperatureWhen, compressor winding heating function is exited, that is, is heated
Electric current iheatIt is zero；As the actual temperature T of outdoor condenserpLower than the first condenser temperature threshold value Tshr, compressor winding adds
Thermocurrent iheatIt is added to maximum, i.e. d shaft current reaches minimum value id_min(i.e. the minimum value of compressor direct-axis current), otherwise, room
The actual temperature T of outer machine condenserpIt is lower, compressor winding heating-current iheatIt is bigger.Wherein, when the reality of outer machine condenser
Temperature TpReach the target temperature of outdoor condenserAfterwards, defrost pattern is exited.
Wherein, in the example depicted in fig. 8, Tshr、T3 *And T3Respectively the first condenser temperature threshold value, outdoor unit condensation
Device target temperature and actual temperature, as the actual temperature T of condenser3In outdoor condenser target temperature T3 *With the first condenser
Temperature threshold TshrBetween when, heated current use linear changing relation.
In one embodiment of the invention, the control method of compressor winding heating further include: by heated current
iheatElectric current i is controlled with weak magneticdpreIt is added, obtains the first weak magnetoelectricity stream；Clipping control is carried out to the first weak magnetoelectricity stream, obtains the
Two weak magnetoelectricity stream ifwc, for the upper limit of clipping control equal to zero, the lower limit of clipping control is equal to the minimum value of compressor direct-axis current.
Wherein, as previously mentioned, the second weak magnetoelectricity stream ifwcIt is input to torque capacity current controller (MTPA), to calculate quadrature axis current (q
Shaft current) it is givenIt is given with direct-axis current (d shaft current)
In one embodiment of the invention, the control method of compressor winding heating further include: calculate voltage clipping
Threshold value umaxWith output voltage amplitude usDifference DELTA u, obtain weak magnetic voltage difference；Weak magnetic voltage difference is adjusted, is obtained
Weak magnetic controls electric current idpre。
Specifically, as shown in connection with fig. 5, illustrating the schematic diagram of classical field weakening control method, wherein according to rotational coordinates
It is lower output voltage ud/uqOr output voltage u under rest frameα/uβCalculate output voltage amplitude us, specifically:
In turn, voltage limiting threshold u is arranged according to the maximum voltage amplitude that driver can exportmax, sweared when using space
Amount pulse width modulation algorithm and driver only work in linear modulator zone and when without ovennodulation, the maximum electricity that can export
Pressure
Amplitude is DC bus-bar voltage udc0.577 times, then, umax=0.577udc,
Wherein,
Further, by voltage limiting threshold umaxSubtract output voltage amplitude usObtain weak magnetic voltage difference Δ u, i.e. Δ u
=umax-us.Proportional, integral adjusting is carried out to weak magnetic voltage difference Δ u, obtained output quantity obtains weak using amplitude limit link
Magnetic control electric current ifwc, wherein the upper limit of amplitude limit link is zero, lower limit is d shaft current minimum value id_min(i.e. compressor direct-axis current
Minimum value).
Fig. 6 illustrates the schematic diagram of compressor winding method for heating and controlling, according to delivery temperature TpIt is controlled and is added
Thermocurrent iheat, by heated current iheatElectric current i is controlled with weak magneticdpreIt is added and passes through amplitude limit link and obtain weak magnetoelectricity stream ifwc,
Wherein the upper limit of amplitude limit link is zero, lower limit is d shaft current minimum value id_min。
Further, in one embodiment of the invention, as shown in connection with fig. 7, the controlling party of compressor winding heating
Method further include: if air-conditioning is in defrost pattern, and the temperature of weak magnetic control module is less than overheat frequency limit threshold value, and compressor inputs
Electric current is less than overcurrent frequency limit threshold value, and delivery temperature is less than exhaust frequency limit threshold value, and compressor operating frequency is equal to or more than
The maximum running frequency of corresponding operating condition, then open compressor winding heating function, the temperature of outdoor condenser obtained, according to room
The temperature of outer machine condenser adjusts heated current.
Further, in one embodiment of the invention, as shown in connection with fig. 7, the controlling party of compressor winding heating
Method further include: if air-conditioning is in heating mode, and the temperature of weak magnetic control module is equal to or more than overheat frequency limit threshold value, or
Compressor input current is equal to or more than overcurrent frequency limit threshold value or delivery temperature is equal to or more than exhaust frequency limit threshold value,
Then judge whether compressor winding heating function has turned on；If having turned on, it is gradually reduced heated current, and in heated current etc.
When zero, compressor winding heating function is exited；If not opening, compressor operating frequency is gradually decreased.
In one embodiment of the invention, as shown in connection with fig. 7, the control method of compressor winding heating further include:
If air-conditioning is in heating mode, and the temperature of weak magnetic control module is less than overheat frequency limit threshold value, and compressor input current is less than
Overcurrent frequency limit threshold value, and delivery temperature is less than exhaust frequency limit threshold value, and compressor operating frequency is less than the highest fortune of corresponding operating condition
Line frequency, then judge whether compressor winding heating function has turned on；If having turned on, it is gradually reduced heated current, and adding
When thermocurrent is equal to zero, compressor winding heating function is exited.
It is when weak magnetic control module temperature reaches overheat frequency limit threshold value or defeated in other words, under the smooth mode of defrost
Enter electric current and reach overcurrent frequency limit threshold value or when delivery temperature reaches exhaust high temperature frequency limit threshold value, if heating function in winding
In energy, then it is gradually reduced compressor heated current, winding heating function is exited when heated current is decreased to zero；If be not at
In winding heating function, then compressor operating frequency is gradually decreased.Further, work as compressor operating frequencyReach defrost work
When condition highest compressor operating frequency, into compressor winding heating function, according to outdoor condenser target temperature and reality
The difference of temperature adjusts heated current.Work as compressor operating frequencyWhen lower than defrost operating condition maximum running frequency, heated current
It is gradually decrease to zero, and exits compressor winding heating function, preferably linearly reduces mode.
Wherein, the preferred settings range of the overheat frequency limit threshold value of weak magnetic control module is 75~95 DEG C, delivery temperature frequency limit
The preferred settings range of threshold value is 95~115 DEG C.
To sum up, the control method of compressor winding heating according to an embodiment of the present invention, according to the outdoor unit cold got
The temperature of condenser adjusts the heated current of compressor winding, i.e., increases compressor winding heating function during defrost, make cold
Heat absorption is transferred to outdoor condenser by winding by matchmaker, thus accelerate outdoor unit defrost process, shorten the defrost time, into
And comfort is improved, improve the average heating capacity in the low-temperature heating defrost period.This method can be applied not only to often
Advise compressor, it can also be used to frequency-changeable compressor (such as air injection enthalpy-increasing compressor) the improvement comfort of low-temperature heating special designing,
It is higher to promote average heating capacity, applicability in the low-temperature heating defrost period.
Further embodiment of the present invention also proposed a kind of control device of compressor winding heating.
Fig. 9 is the structural block diagram of the control device of compressor winding heating according to an embodiment of the invention.Such as Fig. 9 institute
Show, the control device 100 of compressor winding heating includes: to obtain module 110 and adjustment module 120.
Wherein, the temperature that module 110 is used to obtain outdoor condenser is obtained.
Adjustment module 120 is used for the temperature according to outdoor condenser, adjusts the heated current of compressor winding.
Specifically, in one embodiment of the invention, the temperature that module 110 obtains outdoor condenser is obtained, specifically
It include: the actual temperature and target temperature for obtaining outdoor condenser.Based on this, adjustment module 120 is according to outdoor condenser
Temperature, adjust the heated current of compressor winding, specifically include: according to actual temperature and target temperature, closed loop adjusts heating
Electric current.
Wherein, adjustment module 120 adjusts heated current, specifically includes: working as reality according to actual temperature and target temperature, closed loop
When border temperature is equal to or less than the first condenser temperature threshold value, adjusts heated current and reaches preset heated current maximum value,
Heated current maximum value is the corresponding heated current of minimum value of compressor direct-axis current, and when actual temperature is cold greater than first
Condenser temperature threshold, and be less than target temperature when, adjust heated current with target temperature and actual temperature difference linear change,
Actual temperature is lower, and heated current is bigger, and when actual temperature is equal to or more than target temperature, adjusts heated current etc.
In zero.
In one embodiment of the invention, adjustment module 120 is also used to for heated current being added with weak magnetic control electric current,
The first weak magnetoelectricity stream is obtained, and clipping control is carried out to the first weak magnetoelectricity stream, obtains the second weak magnetoelectricity stream, the upper limit of clipping control
Equal to zero, the lower limit of clipping control is equal to the minimum value of compressor direct-axis current.
In one embodiment of the invention, adjustment module 120 is for calculating voltage limiting threshold and output voltage amplitude
Difference, obtain weak magnetic voltage difference, and weak magnetic voltage difference is adjusted, obtain weak magnetic control electric current.
Further, in one embodiment of the invention, adjustment module 120 is also used to be in defrost pattern when air-conditioning,
And the temperature of weak magnetic control module is less than overheat frequency limit threshold value, and compressor input current is less than overcurrent frequency limit threshold value, and is vented
Temperature is less than exhaust frequency limit threshold value, and when compressor operating frequency is equal to or more than the maximum running frequency of corresponding operating condition, opens
Compressor winding heating function is opened, the temperature of outdoor condenser is obtained, according to the temperature of outdoor condenser, adjusts heating electricity
Stream.
In one embodiment of the invention, if adjustment module 120 is also used to be in heating mode, and weak magnetic control when air-conditioning
The temperature of molding block is equal to or more than overheat frequency limit threshold value or compressor input current is equal to or more than overcurrent frequency limit threshold
When value or delivery temperature are equal to or more than exhaust frequency limit threshold value, judge whether compressor winding heating function has turned on；When
When compressor winding heating function has turned on, be gradually reduced heated current, and when heated current is equal to zero, exit compressor around
Group heating function；When compressor winding heating function is not opened, compressor operating frequency is gradually decreased.
In one embodiment of the invention, adjustment module 120 is also used to be in heating mode when air-conditioning, and weak magnetic controls
The temperature of module is less than overheat frequency limit threshold value, and compressor input current is less than overcurrent frequency limit threshold value, and delivery temperature is less than row
Gas frequency limit threshold value, and when compressor operating frequency is less than the maximum running frequency of corresponding operating condition, judge that compressor winding heats function
Whether can have turned on, and when compressor winding heating function has turned on, be gradually reduced heated current, and be equal in heated current
When zero, compressor winding heating function is exited.
It should be noted that the specific implementation for the control device that the compressor winding of the embodiment of the present invention heats and sheet
The specific implementation of the control method of the compressor winding heating of inventive embodiments is similar, specifically refers to retouching for method part
It states, in order to reduce redundancy, does not repeat them here.
To sum up, the control device of compressor winding heating according to an embodiment of the present invention, according to the outdoor unit cold got
The temperature of condenser adjusts the heated current of compressor winding, i.e., increases compressor winding heating function during defrost, make cold
Heat absorption is transferred to outdoor condenser by winding by matchmaker, thus accelerate outdoor unit defrost process, shorten the defrost time, into
And comfort is improved, improve the average heating capacity in the low-temperature heating defrost period.The control device can not only be applied
In Conventional press, it can also be used to which the frequency-changeable compressor (such as air injection enthalpy-increasing compressor) of low-temperature heating special designing improves comfortable
Property, promote average heating capacity in the low-temperature heating defrost period, applicability is higher.
Further embodiment of the present invention also proposed a kind of electronic equipment, comprising: memory, processor and being stored in is deposited
On reservoir and the computer program that can run on a processor, processor execute program, to realize as the present invention is above-mentioned any one
The control method of the heating of compressor winding described in a embodiment.
Electronic equipment according to an embodiment of the present invention, according to the temperature of the outdoor condenser got adjust compressor around
The heated current of group increases compressor winding heating function during defrost, passes refrigerant by heat absorption by winding
It is handed to outdoor condenser, to accelerate outdoor unit defrost process, shorten the defrost time, and then comfort is improved, improves
Average heating capacity in the low-temperature heating defrost period.The electronic equipment can be applied not only to Conventional press, it can also be used to
The frequency-changeable compressor (such as air injection enthalpy-increasing compressor) of low-temperature heating special designing improves comfort, promotes low-temperature heating defrost week
Average heating capacity, applicability are higher in phase.
Further embodiment of the present invention also proposed a kind of non-transitorycomputer readable storage medium, be stored thereon with
Computer program, the program are executed by processor, to press for realizing as described in any one above-mentioned embodiment of the present invention
The control method of contracting machine winding heating.
Non-transitorycomputer readable storage medium according to an embodiment of the present invention, according to the outdoor condenser got
Temperature adjust the heated current of compressor winding, i.e., increase compressor winding heating function during defrost, keep refrigerant logical
It crosses winding and heat absorption is transferred to outdoor condenser, thus accelerate outdoor unit defrost process, shorten the defrost time, Jin Ergai
It has been apt to comfort, has improved the average heating capacity in the low-temperature heating defrost period.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements, unless otherwise restricted clearly.For those of ordinary skill in the art
For, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (18)
1. a kind of control method of compressor winding heating, which comprises the following steps:
Obtain the temperature of outdoor condenser；
According to the temperature of the outdoor condenser, the heated current of compressor winding is adjusted.
2. control method according to claim 1, which is characterized in that the temperature for obtaining outdoor condenser, comprising:
Obtain the actual temperature and target temperature of the outdoor condenser；
The temperature according to the outdoor condenser adjusts the heated current of compressor winding, comprising:
According to the actual temperature and the target temperature, closed loop adjusts the heated current.
3. control method according to claim 2, which is characterized in that described according to the actual temperature and the target temperature
Degree, closed loop adjust the heated current, comprising:
When the actual temperature is equal to or less than the first condenser temperature threshold value, adjusts the heated current and reach preset
Heated current maximum value, the heated current maximum value are the corresponding heated current of minimum value of compressor direct-axis current；
When the actual temperature is greater than the first condenser temperature threshold value, and is less than the target temperature, described add is adjusted
For thermocurrent with the difference linear change of the target temperature and the actual temperature, the actual temperature is lower, the heating electricity
It flows bigger；
When the actual temperature is equal to or more than the target temperature, the heated current is adjusted equal to zero.
4. control method according to claim 1, which is characterized in that further include:
The heated current is added with weak magnetic control electric current, obtains the first weak magnetoelectricity stream；
Clipping control is carried out to first weak magnetoelectricity stream, obtains the second weak magnetoelectricity stream, the upper limit of the clipping control is equal to zero,
The lower limit of the clipping control is equal to the minimum value of compressor direct-axis current.
5. control method according to claim 4, which is characterized in that further include:
The difference for calculating voltage limiting threshold and output voltage amplitude, obtains weak magnetic voltage difference；
The weak magnetic voltage difference is adjusted, the weak magnetic control electric current is obtained.
6. control method according to claim 1, which is characterized in that further include:
If air-conditioning is in defrost pattern, and the temperature of weak magnetic control module is less than overheat frequency limit threshold value, and compressor input current
Less than overcurrent frequency limit threshold value, and delivery temperature is less than exhaust frequency limit threshold value, and compressor operating frequency is equal to or more than correspondence
The maximum running frequency of operating condition then opens compressor winding heating function, obtains the temperature of the outdoor condenser, according to institute
The temperature for stating outdoor condenser adjusts the heated current.
7. control method according to claim 6, which is characterized in that further include:
If air-conditioning is in the heating mode, and
The temperature of the weak magnetic control module is equal to or more than the overheat frequency limit threshold value or the compressor input current
It is equal to or more than the exhaust frequency limit threshold value equal to or more than the overcurrent frequency limit threshold value or the delivery temperature, then
Judge whether the compressor winding heating function has turned on；
If having turned on, be gradually reduced the heated current, and when the heated current is equal to zero, exit the compressor around
Group heating function；
If not opening, the compressor operating frequency is gradually decreased.
8. control method according to claim 7, which is characterized in that further include:
If air-conditioning is in the heating mode, and the temperature of the weak magnetic control module is less than the overheat frequency limit threshold value, and institute
Compressor input current is stated less than the overcurrent frequency limit threshold value, and delivery temperature is less than exhaust frequency limit threshold value, and the compressor
Running frequency is less than the maximum running frequency of corresponding operating condition, then judges whether the compressor winding heating function has turned on；
If having turned on, be gradually reduced the heated current, and when the heated current is equal to zero, exit the compressor around
Group heating function.
9. a kind of control device of compressor winding heating characterized by comprising
Module is obtained, for obtaining the temperature of outdoor condenser；
Adjustment module adjusts the heated current of compressor winding for the temperature according to the outdoor condenser.
10. control device according to claim 9, which is characterized in that
The actual temperature and target temperature for obtaining module and being used to obtain the outdoor condenser；
The adjustment module is used for according to the actual temperature and the target temperature, and closed loop adjusts the heated current.
11. control device according to claim 10, which is characterized in that the adjustment module is used to work as the actual temperature
When equal to or less than the first condenser temperature threshold value, adjusts the heated current and reach preset heated current maximum value, institute
The corresponding heated current of minimum value that heated current maximum value is compressor direct-axis current is stated, and works as the actual temperature
Greater than the first condenser temperature threshold value, and be less than the target temperature when, adjust the heated current with the target temperature
The difference linear change of degree and the actual temperature, the actual temperature is lower, and the heated current is bigger, and works as the reality
When border temperature is equal to or more than the target temperature, the heated current is adjusted equal to zero.
12. control device according to claim 9, which is characterized in that the adjustment module is also used to the heating electricity
Stream and weak magnetic control electric current are added, and obtain the first weak magnetoelectricity stream, and to first weak magnetoelectricity stream progress clipping control, obtain the
Two weak magnetoelectricity streams, the upper limit of the clipping control are equal to zero, and the lower limit of the clipping control is equal to compressor direct-axis current most
Small value.
13. control device according to claim 12, which is characterized in that the adjustment module is for calculating voltage clipping threshold
The difference of value and output voltage amplitude, obtains weak magnetic voltage difference, and the weak magnetic voltage difference is adjusted, and obtains described
Weak magnetic controls electric current.
14. control device according to claim 9, which is characterized in that the adjustment module is also used to change when air-conditioning is in
White mode, and the temperature of weak magnetic control module is less than overheat frequency limit threshold value, and compressor input current is less than overcurrent frequency limit threshold value,
And delivery temperature is less than exhaust frequency limit threshold value, and compressor operating frequency is equal to or more than the maximum running frequency of corresponding operating condition
When, compressor winding heating function is opened, the temperature of the outdoor condenser is obtained, according to the temperature of the outdoor condenser
Degree, adjusts the heated current.
15. control device according to claim 14, which is characterized in that if the adjustment module is also used to be in when air-conditioning
The heating mode, and
The temperature of the weak magnetic control module is equal to or more than the overheat frequency limit threshold value or the compressor input current
When being equal to or more than the exhaust frequency limit threshold value equal to or more than the overcurrent frequency limit threshold value or the delivery temperature,
Judge whether the compressor winding heating function has turned on；
When the compressor winding heating function has turned on, it is gradually reduced the heated current, and in described heated current etc.
When zero, the compressor winding heating function is exited；
When the compressor winding heating function is not opened, the compressor operating frequency is gradually decreased.
16. control device according to claim 15, which is characterized in that the adjustment module is also used to be in institute when air-conditioning
Heating mode is stated, and the temperature of the weak magnetic control module is less than the overheat frequency limit threshold value, and the compressor input current
Less than the overcurrent frequency limit threshold value, and delivery temperature is less than exhaust frequency limit threshold value, and the compressor operating frequency is less than correspondence
When the maximum running frequency of operating condition, judge whether the compressor winding heating function has turned on, and works as the compressor winding
When heating function has turned on, it is gradually reduced the heated current, and when the heated current is equal to zero, exits the compressor
Winding heating function.
17. a kind of electronic equipment characterized by comprising memory, processor and be stored on the memory and can be in institute
The computer program run on processor is stated, the processor executes described program, to realize such as any one of claim 1-8 institute
The control method for the compressor winding heating stated.
18. a kind of non-transitorycomputer readable storage medium, is stored thereon with computer program, which is characterized in that the program
It is executed by processor, with the control method for realizing the described in any item compressor winding heating of such as claim 1-8.
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| CN201810637510.8A CN109059192B (en) | 2018-06-20 | 2018-06-20 | Control method and device for heating compressor winding |
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|---|---|---|---|
| CN201810637510.8A CN109059192B (en) | 2018-06-20 | 2018-06-20 | Control method and device for heating compressor winding |
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| CN109059192B CN109059192B (en) | 2021-04-20 |
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| CN112197408A (en) * | 2020-10-13 | 2021-01-08 | 广东美的制冷设备有限公司 | Heating control method of compressor winding, air conditioner control method, system and equipment |
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| CN112197408A (en) * | 2020-10-13 | 2021-01-08 | 广东美的制冷设备有限公司 | Heating control method of compressor winding, air conditioner control method, system and equipment |
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| CN114608162A (en) * | 2022-02-18 | 2022-06-10 | 青岛海尔空调器有限总公司 | Method and device for controlling direct current air conditioner and direct current air conditioner |
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| CN114811880A (en) * | 2022-02-28 | 2022-07-29 | 青岛海尔空调器有限总公司 | Method and device for defrosting of direct-current air conditioner and direct-current air conditioner |
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