CN107869456A - Progress control method, operating control device and compressor - Google Patents
Progress control method, operating control device and compressor Download PDFInfo
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- CN107869456A CN107869456A CN201711133592.4A CN201711133592A CN107869456A CN 107869456 A CN107869456 A CN 107869456A CN 201711133592 A CN201711133592 A CN 201711133592A CN 107869456 A CN107869456 A CN 107869456A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
- F04B49/065—Control using electricity and making use of computers
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- General Engineering & Computer Science (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a kind of progress control method, operating control device and compressor, wherein, progress control method includes：Gather the real-time pressure drop at real-time circulating current and the winding both ends in winding；According to real-time circulating current and real-time pressure drop, the real-time impedance of winding is calculated；The temperature of winding is determined according to the corresponding relation of real-time impedance and default winding temperature；Regulate and control the input current of compressor in real time according to the temperature of winding.Real-time impedance by calculating compressor winding determines the temperature of winding, and then regulate and control the input current of compressor, improve the response efficiency of VFC, realize the real-time detection to the temperature of compressor winding, and without additionally setting resistance harvester, the hardware manufacturing cost of compressor is reduced, is advantageous to promote the market of above-mentioned compressor product.
Description
Technical field
The present invention relates to Compressor Technology field, in particular to a kind of progress control method, a kind of operation control dress
Put and a kind of compressor.
Background technology
During compressor operating, the reasons such as overload, run time are long can cause compressor winding temperature mistake
Height, compressor fault may be caused, and temperature can not enough cause liquid refrigerant in oil sump to be driven away not exclusively.
In correlation technique, it is proposed that a kind of test system of winding temperature, specifically include：Using resistance meter detection around
Group cold-state resistance, closure switch controller for a period of time after, disconnect switch controller, the hot resistance of detection winding, according to
Cold-state resistance calculates winding temperature with hot resistance.
But extra setting resistance harvester is needed by resistance meter detection winding resistance, this is undoubtedly improved
The manufacturing cost of compressor, in addition, needing the regular hour during measurement cold-state resistance and hot resistance, cause its sound
Longer between seasonable, this is unfavorable for the safety and stability for improving compressor.
The content of the invention
It is contemplated that at least solves one of technical problem present in prior art or correlation technique.
Therefore, it is an object of the present invention to provide a kind of progress control method.
It is another object of the present invention to provide a kind of operating control device.
It is yet a further object of the present invention to provide a kind of compressor.
To achieve these goals, embodiment according to the first aspect of the invention, there is provided a kind of progress control method,
Including：Gather the real-time pressure drop at real-time circulating current and the winding both ends in winding；According to real-time circulating current and real-time pressure drop,
Calculate the real-time impedance of winding；The temperature of winding is determined according to the corresponding relation of real-time impedance and default winding temperature；According to around
The temperature of group regulates and controls the input current of compressor in real time.
In the technical scheme, pass through the real-time pressure drop at the real-time circulating current in collect and process machine winding and winding both ends
The real-time impedance of winding is determined, the temperature of winding, regulation and control compression are determined by the corresponding relation of real-time impedance and default winding temperature
The input current of machine, so as to indirectly control the temperature of compressor winding, improve the security and stability of air conditioner operation.Its
In, the real-time impedance of compressor winding is affected by temperature and changed, therefore the real-time impedance by calculating compressor winding can be true
Determine the temperature of winding, and then judge the running status of compressor, effectively by the temperature control of compressor winding in preset range
It is interior, the real-time detection to the temperature of compressor winding is realized, improves the response efficiency of VFC, and without additionally setting
Resistance harvester, the hardware manufacturing cost of compressor is reduced, be advantageous to promote the market of above-mentioned compressor product.
Wherein, the real-time circulating current in compressor winding is alternating current, and equally, its real-time pressure drop is alternating voltage, is led to
The real-time detection to the two is crossed, the resistance of compressor winding can be detected in real time, and then detects the temperature of compressor winding in real time,
The control response time is effectively shortened, is advantageous to the normal operation of compressor, and then improves Consumer's Experience.
In addition, the quantity of heat production of compressor directly affects the temperature of compressor winding, and influence the direct of compressor quantity of heat production
Factor is electric current, regulates and controls the input current of compressor, and then the temperature of controling winding in real time by the temperature of winding, effectively
Reduce because compressor winding temperature is too high cause compressor failure the problem of, and lead because compressor winding temperature is too low
Cause liquid refrigerant in oil sump to drive away incomplete problem, improve the stability and security of compressor operating.
In any of the above-described technical scheme, it is preferable that determined according to the corresponding relation of real-time impedance and default winding temperature
The temperature of winding, is specifically included：Determine the specified resistance and rated temperature of winding；According to specified resistance, in real time rated temperature, resistance
Anti- and preset formula, determine the temperature of winding；Preset formula includes：Wherein, T is winding
Temperature, T0For the rated temperature of winding, RTFor the real-time impedance of winding, R0For the specified resistance of winding, α is the resistance temperature of winding
Spend coefficient.
In the technical scheme, pass through real-time impedance, specified resistance, rated temperature and preset formula, it may be determined that in real time
Temperature, regulate and control the input current of compressor, and then regulate and control the temperature of compressor winding in real time, be advantageous to improve compressor operating
Stability and security, improve the response efficiency of VFC, and then improve Consumer's Experience.Preset formula includes：Wherein, the first corresponding relation between winding resistance value and winding temperature depends on winding material
Temperature-coefficient of electrical resistance.For example, the temperature-coefficient of electrical resistance of copper is 0.00393, and the temperature-coefficient of electrical resistance of aluminium is 0.00403, around
In the case of the variable quantity identical of group resistance, the winding temperature change of copper winding changes less than the winding temperature of aluminium winding.
In addition, by the way that in compressor initial operating state, rated temperature is determined by environment temperature, by the pressure of original state
Drop determines rated resistance with circulating current, without the extra hardware manufacturing cost for setting resistance harvester, reducing compressor.
In any of the above-described technical scheme, it is preferable that regulate and control the input current of compressor in real time according to the temperature of winding,
Specifically include：Judge whether the temperature of winding is less than the first preset temperature；It is less than the first preset temperature in the temperature for judging winding
When, increase the input current of compressor；When the temperature for judging winding is more than or equal to the first preset temperature, compressor is controlled
Input current reduction or constant.
In the technical scheme, by detecting the real-time impedance of compressor winding in real time, according to the impedance of winding determine around
The temperature of group, when the temperature of winding is less than the first preset temperature, determines that compressor winding temperature is in low-temperature condition, then increases
The input current of compressor, when the temperature of winding is more than or equal to the first preset temperature, determine that compressor winding temperature is in
Normal temperature or the condition of high temperature, then the input current reduction or constant of compressor is controlled, is regulated and controled in real time by the temperature of winding
The input current of compressor, be advantageous to improve the stability and security of compressor operating, reduce because of compressor winding temperature
Not enough cause liquid refrigerant in oil sump to drive away incomplete problem, and then improve Consumer's Experience.
In any of the above-described technical scheme, it is preferable that when the temperature for judging winding is more than or equal to the first preset temperature,
The input current reduction or constant of compressor is controlled, is specifically included：After the temperature for judging winding is more than the first preset temperature, sentence
Whether the temperature of disconnected winding is less than or equal to the second preset temperature；It is less than or equal to the second preset temperature in the temperature for judging winding
When, control the input current of compressor constant, when the temperature for judging winding is more than the second preset temperature, reduce the defeated of compressor
Enter electric current, wherein, the second preset temperature is more than the first preset temperature.
In the technical scheme, by detecting the real-time impedance of compressor winding in real time, according to the impedance of winding determine around
The temperature of group, in the case where the temperature for judging winding is more than or equal to the first preset temperature, when the temperature of winding is less than or waits
When the second preset temperature, determine that compressor winding temperature is in normal temperature condition, then control the input current of compressor not
Become, when the temperature of winding is more than the second preset temperature, compressor may be caused to demagnetize or fuse, then reduce the input of compressor
Electric current, the input current of compressor is regulated and controled by the temperature of winding in real time, be advantageous to improve compressor operating stability and
Security, effectively reduce because compressor winding temperature is too high cause compressor failure the problem of, and then improve user
Experience.
In any of the above-described technical scheme, it is preferable that when the temperature for judging winding is more than the second preset temperature, reduce pressure
The input current of contracting machine, is specifically included：Judge winding temperature be more than the second preset temperature after, judge winding temperature whether
More than or equal to the 3rd preset temperature；When the temperature for judging winding is more than or equal to three preset temperatures, compressor is controlled
Input current is decreased to zero, wherein, the 3rd preset temperature is more than the second preset temperature.
In the technical scheme, after the temperature for judging winding is more than the second preset temperature, continue to judge the temperature of winding
Whether the 3rd preset temperature is more than or equal to, if the determination result is YES, it is determined that now compressor winding temperature is too high, at compressor
In overlond running state, and directly control the input current of compressor to be reduced to zero, i.e., compressor shutdown reduce because compressor around
Group temperature it is too high and the problem of cause compressor failure, improve product service life, lift Consumer's Experience.
For example, the input current of compressor is 50 × sin ω t, however, it is determined that when the temperature of winding is less than the first preset temperature,
The input current of regulation compressor is increased to 100 × sin ω t, however, it is determined that the temperature of winding is more than the first preset temperature and is less than
Or during equal to the second preset temperature, control compressor input current still be 50 × sin ω t, however, it is determined that the temperature of winding is more than the
Two preset temperatures and when being less than three preset temperatures, the input current for adjusting compressor is reduced to 25 × sin ω t, however, it is determined that around
When the temperature of group is more than or equal to three preset temperatures, the input current for adjusting compressor is reduced to zero.
It is worth it is emphasized that above-mentioned default winding temperature, the first preset temperature, the second preset temperature, the 3rd default
Temperature is determined according to the type of compressor, and those skilled in the art can change and adjust according to the Run-time scenario of compressor
Above-mentioned parameter preset.
Technical scheme according to the second aspect of the invention, there is provided a kind of operating control device, including：Collecting unit,
For gathering the real-time pressure drop at real-time circulating current and the winding both ends in winding；Computing unit, for according to real-time flow-thru electrode
Stream and real-time pressure drop, calculate the real-time impedance of winding；Determining unit, for corresponding with default winding temperature according to real-time impedance
Relation determines the temperature of winding；Regulate and control unit, for regulating and controlling the input current of compressor in real time according to the temperature of winding.
In the technical scheme, pass through the real-time pressure drop at the real-time circulating current in collect and process machine winding and winding both ends
The real-time impedance of winding is determined, the temperature of winding, regulation and control compression are determined by the corresponding relation of real-time impedance and default winding temperature
The input current of machine, so as to indirectly control the temperature of compressor winding, improve the security and stability of air conditioner operation.Its
In, the real-time impedance of compressor winding is affected by temperature and changed, therefore the real-time impedance by calculating compressor winding can be true
Determine the temperature of winding, and then judge the running status of compressor, effectively by the temperature control of compressor winding in preset range
It is interior, the real-time detection to the temperature of compressor winding is realized, improves the response efficiency of VFC, and without additionally setting
Resistance harvester, the hardware manufacturing cost of compressor is reduced, be advantageous to promote the market of above-mentioned compressor product.
Wherein, the real-time circulating current in compressor winding is alternating current, and equally, its real-time pressure drop is alternating voltage, is led to
The real-time detection to the two is crossed, the resistance of compressor winding can be detected in real time, and then detects the temperature of compressor winding in real time,
The control response time is effectively shortened, is advantageous to the normal operation of compressor, and then improves Consumer's Experience.
In addition, the quantity of heat production of compressor directly affects the temperature of compressor winding, and influence the direct of compressor quantity of heat production
Factor is electric current, regulates and controls the input current of compressor, and then the temperature of controling winding in real time by the temperature of winding, effectively
Reduce because compressor winding temperature is too high cause compressor failure the problem of, and lead because compressor winding temperature is too low
Cause liquid refrigerant in oil sump to drive away incomplete problem, improve the stability and security of compressor operating.
In any of the above-described technical scheme, it is preferable that determining unit is additionally operable to：Determine the specified resistance of winding and specified temperature
Degree；Determining unit is additionally operable to：According to specified resistance, rated temperature, real-time impedance and preset formula, the temperature of winding is determined；In advance
If formula includes：Wherein, T be winding temperature, T0For the rated temperature of winding, RTFor winding
Real-time impedance, R0For the specified resistance of winding, α is the temperature-coefficient of electrical resistance of winding.
In the technical scheme, pass through real-time impedance, specified resistance, rated temperature and preset formula, it may be determined that in real time
Temperature, regulate and control the input current of compressor, and then regulate and control the temperature of compressor winding in real time, be advantageous to improve compressor operating
Stability and security, improve the response efficiency of VFC, and then improve Consumer's Experience.Preset formula includes：Wherein, the first corresponding relation between winding resistance value and winding temperature depends on winding material
Temperature-coefficient of electrical resistance.For example, the temperature-coefficient of electrical resistance of copper is 0.00393, and the temperature-coefficient of electrical resistance of aluminium is 0.00403, around
In the case of the variable quantity identical of group resistance, the winding temperature change of copper winding changes less than the winding temperature of aluminium winding.
In addition, by the way that in compressor initial operating state, rated temperature is determined by environment temperature, by the pressure of original state
Drop determines rated resistance with circulating current, without the extra hardware manufacturing cost for setting resistance harvester, reducing compressor.
In any of the above-described technical scheme, it is preferable that operating control device also includes：Judging unit, for judging winding
Temperature whether be less than the first preset temperature；The regulation and control unit is additionally operable to：It is less than the first default temperature in the temperature for judging winding
When spending, increase the input current of compressor；The regulation and control unit is additionally operable to：It is pre- to be more than or equal to first in the temperature for judging winding
If during temperature, control the input current reduction or constant of compressor.
In the technical scheme, by detecting the real-time impedance of compressor winding in real time, according to the impedance of winding determine around
The temperature of group, when the temperature of winding is less than the first preset temperature, determines that compressor winding temperature is in low-temperature condition, then increases
The input current of compressor, when the temperature of winding is more than or equal to the first preset temperature, determine that compressor winding temperature is in
Normal temperature or the condition of high temperature, then the input current reduction or constant of compressor is controlled, is regulated and controled in real time by the temperature of winding
The input current of compressor, be advantageous to improve the stability and security of compressor operating, reduce because of compressor winding temperature
Not enough cause liquid refrigerant in oil sump to drive away incomplete problem, and then improve Consumer's Experience.
In any of the above-described technical scheme, it is preferable that judging unit is additionally operable to：It is pre- to be more than first in the temperature for judging winding
If after temperature, judge whether the temperature of winding is less than or equal to the second preset temperature；The regulation and control unit is additionally operable to：Judge around
When the temperature of group is less than or equal to the second preset temperature, control the input current of compressor constant；The regulation and control unit is additionally operable to：
When the temperature for judging winding is more than the second preset temperature, reduce the input current of compressor, wherein, the second preset temperature is more than
First preset temperature.
In the technical scheme, by detecting the real-time impedance of compressor winding in real time, according to the impedance of winding determine around
The temperature of group, in the case where the temperature for judging winding is more than or equal to the first preset temperature, when the temperature of winding is less than or waits
When the second preset temperature, determine that compressor winding temperature is in normal temperature condition, then control the input current of compressor not
Become, when the temperature of winding is more than the second preset temperature, compressor may be caused to demagnetize or fuse, then reduce the input of compressor
Electric current, the input current of compressor is regulated and controled by the temperature of winding in real time, be advantageous to improve compressor operating stability and
Security, effectively reduce because compressor winding temperature is too high cause compressor failure the problem of, and then improve user
Experience.
In any of the above-described technical scheme, it is preferable that judging unit is additionally operable to：It is pre- to be more than second in the temperature for judging winding
If after temperature, judge whether the temperature of winding is more than or equal to the 3rd preset temperature；The regulation and control unit is additionally operable to：Judge around
When the temperature of group is more than or equal to three preset temperatures, the input current of compressor is controlled to be decreased to zero, wherein, the 3rd default temperature
Degree is more than the second preset temperature.
In the technical scheme, after the temperature for judging winding is more than the second preset temperature, continue to judge the temperature of winding
Whether the 3rd preset temperature is more than or equal to, if the determination result is YES, it is determined that now compressor winding temperature is too high, at compressor
In overlond running state, and directly control the input current of compressor to be reduced to zero, i.e., compressor shutdown reduce because compressor around
Group temperature it is too high and the problem of cause compressor failure, improve product service life, lift Consumer's Experience.
For example, the input current of compressor is 50 × sin ω t, however, it is determined that when the temperature of winding is less than the first preset temperature,
The input current of regulation compressor is increased to 100 × sin ω t, however, it is determined that the temperature of winding is more than the first preset temperature and is less than
Or during equal to the second preset temperature, control compressor input current still be 50 × sin ω t, however, it is determined that the temperature of winding is more than the
Two preset temperatures and when being less than three preset temperatures, the input current for adjusting compressor is reduced to 25 × sin ω t, however, it is determined that around
When the temperature of group is more than or equal to three preset temperatures, the input current for adjusting compressor is reduced to zero.
It is worth it is emphasized that above-mentioned default winding temperature, the first preset temperature, the second preset temperature, the 3rd default
Temperature is determined according to the type of compressor, and those skilled in the art can change and adjust according to the Run-time scenario of compressor
Above-mentioned parameter preset.
Technical scheme according to the third aspect of the present invention, there is provided a kind of compressor, including memory, processor and
Storage realizes above-mentioned fortune on a memory and the computer program that can run on a processor, during computing device computer program
The step of row control method limits；And/or the operating control device including any of the above-described.
The additional aspect and advantage of the present invention will provide in following description section, will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment
Substantially and it is readily appreciated that, wherein：
Fig. 1 shows the schematic flow diagram of progress control method according to an embodiment of the invention；
Fig. 2 shows the schematic block diagram of operating control device according to an embodiment of the invention；
Fig. 3 shows the schematic block diagram of compressor according to an embodiment of the invention.
Embodiment
It is below in conjunction with the accompanying drawings and specific real in order to be more clearly understood that the above objects, features and advantages of the present invention
Mode is applied the present invention is further described in detail.It should be noted that in the case where not conflicting, the implementation of the application
Feature in example and embodiment can be mutually combined.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also
To be different from other modes described here using other to implement, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
Operation control program according to an embodiment of the invention is specifically described with reference to Fig. 1 to Fig. 3.
Fig. 1 shows the schematic flow diagram of progress control method according to an embodiment of the invention.
As shown in figure 1, progress control method according to an embodiment of the invention, including：Step S102, gather winding
In real-time circulating current and winding both ends real-time pressure drop；Step S104, according to real-time circulating current and real-time pressure drop, calculate
The real-time impedance of winding；Step S106, the temperature of winding is determined according to the corresponding relation of real-time impedance and default winding temperature；Step
Rapid S108, regulate and control the input current of compressor in real time according to the temperature of winding.
In the technical scheme, pass through the real-time pressure drop at the real-time circulating current in collect and process machine winding and winding both ends
The real-time impedance of winding is determined, the temperature of winding, regulation and control compression are determined by the corresponding relation of real-time impedance and default winding temperature
The input current of machine, so as to indirectly control the temperature of compressor winding, improve the security and stability of air conditioner operation.Its
In, the real-time impedance of compressor winding is affected by temperature and changed, therefore the real-time impedance by calculating compressor winding can be true
Determine the temperature of winding, and then judge the running status of compressor, effectively by the temperature control of compressor winding in preset range
It is interior, the real-time detection to the temperature of compressor winding is realized, improves the response efficiency of VFC, and without additionally setting
Resistance harvester, the hardware manufacturing cost of compressor is reduced, be advantageous to promote the market of above-mentioned compressor product.
Wherein, the real-time circulating current in compressor winding is alternating current, and equally, its real-time pressure drop is alternating voltage, is led to
The real-time detection to the two is crossed, the resistance of compressor winding can be detected in real time, and then detects the temperature of compressor winding in real time,
The control response time is effectively shortened, is advantageous to the normal operation of compressor, and then improves Consumer's Experience.
In addition, the quantity of heat production of compressor directly affects the temperature of compressor winding, and influence the direct of compressor quantity of heat production
Factor is electric current, regulates and controls the input current of compressor, and then the temperature of controling winding in real time by the temperature of winding, effectively
Reduce because compressor winding temperature is too high cause compressor failure the problem of, and lead because compressor winding temperature is too low
Cause liquid refrigerant in oil sump to drive away incomplete problem, improve the stability and security of compressor operating.
In any of the above-described technical scheme, it is preferable that determined according to the corresponding relation of real-time impedance and default winding temperature
The temperature of winding, is specifically included：Determine the specified resistance and rated temperature of winding；According to specified resistance, in real time rated temperature, resistance
Anti- and preset formula, determine the temperature of winding；Preset formula includes：Wherein, T is winding
Temperature, T0For the rated temperature of winding, RTFor the real-time impedance of winding, R0For the specified resistance of winding, α is the resistance temperature of winding
Spend coefficient.
In the technical scheme, pass through real-time impedance, specified resistance, rated temperature and preset formula, it may be determined that in real time
Temperature, regulate and control the input current of compressor, and then regulate and control the temperature of compressor winding in real time, be advantageous to improve compressor operating
Stability and security, improve the response efficiency of VFC, and then improve Consumer's Experience.Preset formula includes：Wherein, the first corresponding relation between winding resistance value and winding temperature depends on winding material
Temperature-coefficient of electrical resistance.For example, the temperature-coefficient of electrical resistance of copper is 0.00393, and the temperature-coefficient of electrical resistance of aluminium is 0.00403, around
In the case of the variable quantity identical of group resistance, the winding temperature change of copper winding changes less than the winding temperature of aluminium winding.
In addition, by the way that in compressor initial operating state, rated temperature is determined by environment temperature, by the pressure of original state
Drop determines rated resistance with circulating current, without the extra hardware manufacturing cost for setting resistance harvester, reducing compressor.
In any of the above-described technical scheme, it is preferable that regulate and control the input current of compressor in real time according to the temperature of winding,
Specifically include：Judge whether the temperature of winding is less than the first preset temperature；It is less than the first preset temperature in the temperature for judging winding
When, increase the input current of compressor；When the temperature for judging winding is more than or equal to the first preset temperature, compressor is controlled
Input current reduction or constant.
In the technical scheme, by detecting the real-time impedance of compressor winding in real time, according to the impedance of winding determine around
The temperature of group, when the temperature of winding is less than the first preset temperature, determines that compressor winding temperature is in low-temperature condition, then increases
The input current of compressor, when the temperature of winding is more than or equal to the first preset temperature, determine that compressor winding temperature is in
Normal temperature or the condition of high temperature, then the input current reduction or constant of compressor is controlled, is regulated and controled in real time by the temperature of winding
The input current of compressor, be advantageous to improve the stability and security of compressor operating, reduce because of compressor winding temperature
Not enough cause liquid refrigerant in oil sump to drive away incomplete problem, and then improve Consumer's Experience.
In any of the above-described technical scheme, it is preferable that when the temperature for judging winding is more than or equal to the first preset temperature,
The input current reduction or constant of compressor is controlled, is specifically included：After the temperature for judging winding is more than the first preset temperature, sentence
Whether the temperature of disconnected winding is less than or equal to the second preset temperature；It is less than or equal to the second preset temperature in the temperature for judging winding
When, control the input current of compressor constant, when the temperature for judging winding is more than the second preset temperature, reduce the defeated of compressor
Enter electric current, wherein, the second preset temperature is more than the first preset temperature.
In the technical scheme, by detecting the real-time impedance of compressor winding in real time, according to the impedance of winding determine around
The temperature of group, in the case where the temperature for judging winding is more than or equal to the first preset temperature, when the temperature of winding is less than or waits
When the second preset temperature, determine that compressor winding temperature is in normal temperature condition, then control the input current of compressor not
Become, when the temperature of winding is more than the second preset temperature, compressor may be caused to demagnetize or fuse, then reduce the input of compressor
Electric current, the input current of compressor is regulated and controled by the temperature of winding in real time, be advantageous to improve compressor operating stability and
Security, effectively reduce because compressor winding temperature is too high cause compressor failure the problem of, and then improve user
Experience.
In any of the above-described technical scheme, it is preferable that when the temperature for judging winding is more than the second preset temperature, reduce pressure
The input current of contracting machine, is specifically included：Judge winding temperature be more than the second preset temperature after, judge winding temperature whether
More than or equal to the 3rd preset temperature；When the temperature for judging winding is more than or equal to three preset temperatures, compressor is controlled
Input current is decreased to zero, wherein, the 3rd preset temperature is more than the second preset temperature.
In the technical scheme, after the temperature for judging winding is more than the second preset temperature, continue to judge the temperature of winding
Whether the 3rd preset temperature is more than or equal to, if the determination result is YES, it is determined that now compressor winding temperature is too high, at compressor
In overlond running state, and directly control the input current of compressor to be reduced to zero, i.e., compressor shutdown reduce because compressor around
Group temperature it is too high and the problem of cause compressor failure, improve product service life, lift Consumer's Experience.
For example, the input current of compressor is 50 × sin ω t, however, it is determined that when the temperature of winding is less than the first preset temperature,
The input current of regulation compressor is increased to 100 × sin ω t, however, it is determined that the temperature of winding is more than the first preset temperature and is less than
Or during equal to the second preset temperature, control compressor input current still be 50 × sin ω t, however, it is determined that the temperature of winding is more than the
Two preset temperatures and when being less than three preset temperatures, the input current for adjusting compressor is reduced to 25 × sin ω t, however, it is determined that around
When the temperature of group is more than or equal to three preset temperatures, the input current for adjusting compressor is reduced to zero.
It is worth it is emphasized that above-mentioned default winding temperature, the first preset temperature, the second preset temperature, the 3rd default
Temperature is determined according to the type of compressor, and those skilled in the art can change and adjust according to the Run-time scenario of compressor
Above-mentioned parameter preset.
Fig. 2 shows the schematic block diagram of operating control device 200 according to an embodiment of the invention.
As shown in Fig. 2 operating control device 200 according to an embodiment of the invention, including：Collecting unit 202, use
In the real-time pressure drop for gathering real-time circulating current and the winding both ends in winding；Computing unit 204, for according to real-time flow-thru electrode
Stream and real-time pressure drop, calculate the real-time impedance of winding；Determining unit 206, for according to real-time impedance and default winding temperature
Corresponding relation determines the temperature of winding；Regulate and control unit 208, for regulating and controlling the input electricity of compressor in real time according to the temperature of winding
Stream.
In the technical scheme, pass through the real-time pressure drop at the real-time circulating current in collect and process machine winding and winding both ends
The real-time impedance of winding is determined, the temperature of winding, regulation and control compression are determined by the corresponding relation of real-time impedance and default winding temperature
The input current of machine, so as to indirectly control the temperature of compressor winding, improve the security and stability of air conditioner operation.Its
In, the real-time impedance of compressor winding is affected by temperature and changed, therefore the real-time impedance by calculating compressor winding can be true
Determine the temperature of winding, and then judge the running status of compressor, effectively by the temperature control of compressor winding in preset range
It is interior, the real-time detection to the temperature of compressor winding is realized, improves the response efficiency of VFC, and without additionally setting
Resistance harvester, the hardware manufacturing cost of compressor is reduced, be advantageous to promote the market of above-mentioned compressor product.
Wherein, the real-time circulating current in compressor winding is alternating current, and equally, its real-time pressure drop is alternating voltage, is led to
The real-time detection to the two is crossed, the resistance of compressor winding can be detected in real time, and then detects the temperature of compressor winding in real time,
The control response time is effectively shortened, is advantageous to the normal operation of compressor, and then improves Consumer's Experience.
In addition, the quantity of heat production of compressor directly affects the temperature of compressor winding, and influence the direct of compressor quantity of heat production
Factor is electric current, regulates and controls the input current of compressor, and then the temperature of controling winding in real time by the temperature of winding, effectively
Reduce because compressor winding temperature is too high cause compressor failure the problem of, and lead because compressor winding temperature is too low
Cause liquid refrigerant in oil sump to drive away incomplete problem, improve the stability and security of compressor operating.
In any of the above-described technical scheme, it is preferable that determining unit 206 is additionally operable to：Determine the specified resistance and volume of winding
Constant temperature degree；Determining unit 206 is additionally operable to：According to specified resistance, rated temperature, real-time impedance and preset formula, winding is determined
Temperature；Preset formula includes：Wherein, T be winding temperature, T0For the rated temperature of winding,
RTFor the real-time impedance of winding, R0For the specified resistance of winding, α is the temperature-coefficient of electrical resistance of winding.
In the technical scheme, pass through real-time impedance, specified resistance, rated temperature and preset formula, it may be determined that in real time
Temperature, regulate and control the input current of compressor, and then regulate and control the temperature of compressor winding in real time, be advantageous to improve compressor operating
Stability and security, improve the response efficiency of VFC, and then improve Consumer's Experience.Preset formula includes：Wherein, the first corresponding relation between winding resistance value and winding temperature depends on winding material
Temperature-coefficient of electrical resistance.For example, the temperature-coefficient of electrical resistance of copper is 0.00393, and the temperature-coefficient of electrical resistance of aluminium is 0.00403, around
In the case of the variable quantity identical of group resistance, the winding temperature change of copper winding changes less than the winding temperature of aluminium winding.
In addition, by the way that in compressor initial operating state, rated temperature is determined by environment temperature, by the pressure of original state
Drop determines rated resistance with circulating current, without the extra hardware manufacturing cost for setting resistance harvester, reducing compressor.
In any of the above-described technical scheme, it is preferable that operating control device 200 also includes：Judging unit 210, for sentencing
Whether the temperature of disconnected winding is less than the first preset temperature；The regulation and control unit 208 is additionally operable to：It is less than the in the temperature for judging winding
During one preset temperature, increase the input current of compressor；The regulation and control unit 208 is additionally operable to：It is more than in the temperature for judging winding
Or during equal to the first preset temperature, control the input current reduction or constant of compressor.
In the technical scheme, by detecting the real-time impedance of compressor winding in real time, according to the impedance of winding determine around
The temperature of group, when the temperature of winding is less than the first preset temperature, determines that compressor winding temperature is in low-temperature condition, then increases
The input current of compressor, when the temperature of winding is more than or equal to the first preset temperature, determine that compressor winding temperature is in
Normal temperature or the condition of high temperature, then the input current reduction or constant of compressor is controlled, is regulated and controled in real time by the temperature of winding
The input current of compressor, be advantageous to improve the stability and security of compressor operating, reduce because of compressor winding temperature
Not enough cause liquid refrigerant in oil sump to drive away incomplete problem, and then improve Consumer's Experience.
In any of the above-described technical scheme, it is preferable that judging unit 210 is additionally operable to：It is more than the in the temperature for judging winding
After one preset temperature, judge whether the temperature of winding is less than or equal to the second preset temperature；The regulation and control unit 208 is additionally operable to：
When the temperature for judging winding is less than or equal to the second preset temperature, control the input current of compressor constant；The regulation and control are single
Member 208 is additionally operable to：When the temperature for judging winding is more than the second preset temperature, reduce the input current of compressor, wherein, second
Preset temperature is more than the first preset temperature.
In the technical scheme, by detecting the real-time impedance of compressor winding in real time, according to the impedance of winding determine around
The temperature of group, in the case where the temperature for judging winding is more than or equal to the first preset temperature, when the temperature of winding is less than or waits
When the second preset temperature, determine that compressor winding temperature is in normal temperature condition, then control the input current of compressor not
Become, when the temperature of winding is more than the second preset temperature, compressor may be caused to demagnetize or fuse, then reduce the input of compressor
Electric current, the input current of compressor is regulated and controled by the temperature of winding in real time, be advantageous to improve compressor operating stability and
Security, effectively reduce because compressor winding temperature is too high cause compressor failure the problem of, and then improve user
Experience.
In any of the above-described technical scheme, it is preferable that judging unit 210 is additionally operable to：It is more than the in the temperature for judging winding
After two preset temperatures, judge whether the temperature of winding is more than or equal to the 3rd preset temperature；The regulation and control unit 208 is additionally operable to：
When the temperature for judging winding is more than or equal to three preset temperatures, the input current of compressor is controlled to be decreased to zero, wherein, the
Three preset temperatures are more than the second preset temperature.
In the technical scheme, after the temperature for judging winding is more than the second preset temperature, continue to judge the temperature of winding
Whether the 3rd preset temperature is more than or equal to, if the determination result is YES, it is determined that now compressor winding temperature is too high, at compressor
In overlond running state, and directly control the input current of compressor to be reduced to zero, i.e., compressor shutdown reduce because compressor around
Group temperature it is too high and the problem of cause compressor failure, improve product service life, lift Consumer's Experience.
For example, the input current of compressor is 50 × sin ω t, however, it is determined that when the temperature of winding is less than the first preset temperature,
The input current of regulation compressor is increased to 100 × sin ω t, however, it is determined that the temperature of winding is more than the first preset temperature and is less than
Or during equal to the second preset temperature, control compressor input current still be 50 × sin ω t, however, it is determined that the temperature of winding is more than the
Two preset temperatures and when being less than three preset temperatures, the input current for adjusting compressor is reduced to 25 × sin ω t, however, it is determined that around
When the temperature of group is more than or equal to three preset temperatures, the input current for adjusting compressor is reduced to zero.
It is worth it is emphasized that above-mentioned default winding temperature, the first preset temperature, the second preset temperature, the 3rd default
Temperature is determined according to the type of compressor, and those skilled in the art can change and adjust according to the Run-time scenario of compressor
Above-mentioned parameter preset.
Fig. 3 shows the schematic block diagram of compressor according to an embodiment of the invention.
As shown in figure 3, compressor 300 according to an embodiment of the invention, including memory, processor and it is stored in storage
Any of the above-described operation control is realized on device and the computer program that can run on a processor, during computing device computer program
The step of method processed limits；And/or including the operating control device 200 shown in Fig. 2.
Be described in detail technical scheme above in association with accompanying drawing, the present invention propose a kind of progress control method,
Operating control device and compressor, it is true by the real-time circulating current in collect and process machine winding and the real-time pressure drop at winding both ends
Determine the real-time impedance of winding, the temperature of winding is determined by the corresponding relation of real-time impedance and default winding temperature, regulate and control compressor
Input current, so as to indirectly control compressor winding temperature, improve air conditioner operation security and stability.Its
In, the real-time impedance of compressor winding is affected by temperature and changed, therefore the real-time impedance by calculating compressor winding can be true
Determine the temperature of winding, and then judge the running status of compressor, effectively by the temperature control of compressor winding in preset range
It is interior, the real-time detection to the temperature of compressor winding is realized, improves the response efficiency of VFC, and without additionally setting
Resistance harvester, the hardware manufacturing cost of compressor is reduced, be advantageous to promote the market of above-mentioned compressor product.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (11)
1. a kind of progress control method, suitable for compressor, the compressor includes winding, it is characterised in that the operation control
Method processed includes：
Gather the real-time circulating current in the winding and the real-time pressure drop at the winding both ends；
According to circulating current and the real-time pressure drop in real time, the real-time impedance of the winding is calculated；
The temperature of the winding is determined according to the corresponding relation of the real-time impedance and default winding temperature；
Regulate and control the input current of the compressor in real time according to the temperature of the winding.
2. progress control method according to claim 1, it is characterised in that according to the real-time impedance and default winding temperature
The corresponding relation of degree determines the temperature of the winding, specifically includes：
Determine the specified resistance and rated temperature of the winding；
According to the specified resistance, the rated temperature, the real-time impedance and preset formula, the temperature of the winding is determined；
The preset formula includes：
<mrow>
<mi>T</mi>
<mo>=</mo>
<msub>
<mi>T</mi>
<mn>0</mn>
</msub>
<mo>+</mo>
<mfrac>
<mrow>
<msub>
<mi>R</mi>
<mi>T</mi>
</msub>
<mo>-</mo>
<msub>
<mi>R</mi>
<mn>0</mn>
</msub>
</mrow>
<mrow>
<msub>
<mi>&alpha;R</mi>
<mn>0</mn>
</msub>
</mrow>
</mfrac>
<mo>,</mo>
</mrow>
Wherein, the T be the winding temperature, the T0For the rated temperature of the winding, the RTFor the reality of the winding
When impedance, the R0For the specified resistance of the winding, the α is the temperature-coefficient of electrical resistance of the winding.
3. progress control method according to claim 1, it is characterised in that regulated and controled in real time according to the temperature of the winding
The input current of the compressor, is specifically included：
Judge whether the temperature of the winding is less than the first preset temperature；
When the temperature for judging the winding is less than first preset temperature, increase the input current of the compressor；
When the temperature for judging the winding is more than or equal to first preset temperature, the input current of the compressor is controlled
Reduce or constant.
4. progress control method according to claim 3, it is characterised in that be more than or wait in the temperature for judging the winding
When first preset temperature, the input current reduction or constant of the compressor is controlled, is specifically included：
After the temperature for judging the winding is more than first preset temperature, judge whether the temperature of the winding is less than or waits
In the second preset temperature；
When the temperature for judging the winding is less than or equal to second preset temperature, the input current of the compressor is controlled
It is constant；
When the temperature for judging the winding is more than second preset temperature, reduce the input current of the compressor,
Wherein, second preset temperature is more than first preset temperature.
5. progress control method according to claim 4, it is characterised in that be more than in the temperature for judging the winding described
During the second preset temperature, reduce the input current of the compressor, specifically include：
After the temperature for judging the winding is more than second preset temperature, judge whether the temperature of the winding is more than or waits
In the 3rd preset temperature；
When the temperature for judging the winding is more than or equal to three preset temperature, the input current of the compressor is controlled
It is decreased to zero,
Wherein, the 3rd preset temperature is more than second preset temperature.
6. a kind of operating control device, suitable for compressor, the compressor includes winding, it is characterised in that the operation control
Device processed includes：
Collecting unit, for gathering the real-time circulating current in the winding and the real-time pressure drop at the winding both ends；
Computing unit, for according to circulating current and the real-time pressure drop in real time, calculating the real-time impedance of the winding；
Determining unit, for determining the temperature of the winding according to the corresponding relation of the real-time impedance and default winding temperature；
Regulate and control unit, for regulating and controlling the input current of the compressor in real time according to the temperature of the winding.
7. operating control device according to claim 6, it is characterised in that
The determining unit is additionally operable to：Determine the specified resistance and rated temperature of the winding；
The determining unit is additionally operable to：According to the specified resistance, the rated temperature, the real-time impedance and preset formula,
Determine the temperature of the winding；
The preset formula includes：
<mrow>
<mi>T</mi>
<mo>=</mo>
<msub>
<mi>T</mi>
<mn>0</mn>
</msub>
<mo>+</mo>
<mfrac>
<mrow>
<msub>
<mi>R</mi>
<mi>T</mi>
</msub>
<mo>-</mo>
<msub>
<mi>R</mi>
<mn>0</mn>
</msub>
</mrow>
<mrow>
<msub>
<mi>&alpha;R</mi>
<mn>0</mn>
</msub>
</mrow>
</mfrac>
<mo>,</mo>
</mrow>
Wherein, the T be the winding temperature, the T0For the rated temperature of the winding, the RTFor the reality of the winding
When impedance, the R0For the specified resistance of the winding, the α is the temperature-coefficient of electrical resistance of the winding.
8. operating control device according to claim 6, it is characterised in that also include：
Judging unit, for judging whether the temperature of the winding is less than the first preset temperature；
The regulation and control unit is additionally operable to：When the temperature for judging the winding is less than first preset temperature, increase the pressure
The input current of contracting machine；
The regulation and control unit is additionally operable to：When the temperature for judging the winding is more than or equal to first preset temperature, control
The input current reduction or constant of the compressor.
9. operating control device according to claim 8, it is characterised in that
The judging unit is additionally operable to：After the temperature for judging the winding is more than first preset temperature, judge it is described around
Whether the temperature of group is less than or equal to the second preset temperature；
The regulation and control unit is additionally operable to：When the temperature for judging the winding is less than or equal to second preset temperature, control
The input current of the compressor is constant；
The regulation and control unit is additionally operable to：When the temperature for judging the winding is more than second preset temperature, reduce the pressure
The input current of contracting machine,
Wherein, second preset temperature is more than first preset temperature.
10. operating control device according to claim 9, it is characterised in that
The judging unit is additionally operable to：After the temperature for judging the winding is more than second preset temperature, judge it is described around
Whether the temperature of group is more than or equal to the 3rd preset temperature；
The regulation and control unit is additionally operable to：When the temperature for judging the winding is more than or equal to three preset temperature, control
The input current of the compressor is decreased to zero,
Wherein, the 3rd preset temperature is more than second preset temperature.
11. a kind of compressor, the compressor includes memory, processor and is stored on the memory and can be at the place
The computer program run on reason device, it is characterised in that
Realize that any one of claim 1 to 5 progress control method such as limits described in the computing device during computer program
The step of；
And/or including the operating control device as any one of claim 6 to 10.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108931042A (en) * | 2018-06-20 | 2018-12-04 | 广东美的制冷设备有限公司 | The control method and device of compressor winding heating |
| CN109682020A (en) * | 2018-12-28 | 2019-04-26 | Tcl空调器(中山)有限公司 | A kind of compressor preheating control method, system, storage medium and air-conditioner outdoor unit |
| CN112994575A (en) * | 2019-12-17 | 2021-06-18 | 青岛海尔空调电子有限公司 | Winding temperature determination method and starting method of three-phase compressor and air conditioner |
| CN115325813A (en) * | 2022-08-22 | 2022-11-11 | 伊岛电器(宁波)有限公司 | Temperature control method and system for terrace dryer |
| CN115388611A (en) * | 2022-08-22 | 2022-11-25 | 海信冰箱有限公司 | Refrigerator and compressor control method thereof |
| CN116007146A (en) * | 2022-12-28 | 2023-04-25 | 中山长虹电器有限公司 | Control method of air conditioner |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07180687A (en) * | 1993-12-22 | 1995-07-18 | Matsushita Electric Ind Co Ltd | Closed type motor-driven compressor |
| JP2009195015A (en) * | 2008-02-14 | 2009-08-27 | Panasonic Corp | Inverter apparatus |
| CN103471738A (en) * | 2013-09-25 | 2013-12-25 | 哈尔滨工业大学 | Method for on-line temperature monitoring of exciting winding of plasma Hall effect thruster |
| CN104848955A (en) * | 2014-02-18 | 2015-08-19 | 珠海格力电器股份有限公司 | Winding temperature test system and method |
| CN105822535A (en) * | 2016-04-19 | 2016-08-03 | 广东美的制冷设备有限公司 | Control method and device of compressor and air conditioner |
-
2017
- 2017-11-16 CN CN201711133592.4A patent/CN107869456B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07180687A (en) * | 1993-12-22 | 1995-07-18 | Matsushita Electric Ind Co Ltd | Closed type motor-driven compressor |
| JP2009195015A (en) * | 2008-02-14 | 2009-08-27 | Panasonic Corp | Inverter apparatus |
| CN103471738A (en) * | 2013-09-25 | 2013-12-25 | 哈尔滨工业大学 | Method for on-line temperature monitoring of exciting winding of plasma Hall effect thruster |
| CN104848955A (en) * | 2014-02-18 | 2015-08-19 | 珠海格力电器股份有限公司 | Winding temperature test system and method |
| CN105822535A (en) * | 2016-04-19 | 2016-08-03 | 广东美的制冷设备有限公司 | Control method and device of compressor and air conditioner |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108931042A (en) * | 2018-06-20 | 2018-12-04 | 广东美的制冷设备有限公司 | The control method and device of compressor winding heating |
| CN109682020A (en) * | 2018-12-28 | 2019-04-26 | Tcl空调器(中山)有限公司 | A kind of compressor preheating control method, system, storage medium and air-conditioner outdoor unit |
| CN112994575A (en) * | 2019-12-17 | 2021-06-18 | 青岛海尔空调电子有限公司 | Winding temperature determination method and starting method of three-phase compressor and air conditioner |
| CN112994575B (en) * | 2019-12-17 | 2023-01-31 | 青岛海尔空调电子有限公司 | Winding temperature determination method and starting method of three-phase compressor and air conditioner |
| CN115325813A (en) * | 2022-08-22 | 2022-11-11 | 伊岛电器(宁波)有限公司 | Temperature control method and system for terrace dryer |
| CN115388611A (en) * | 2022-08-22 | 2022-11-25 | 海信冰箱有限公司 | Refrigerator and compressor control method thereof |
| CN115325813B (en) * | 2022-08-22 | 2023-07-14 | 伊岛电器(宁波)有限公司 | Temperature control method and system of terrace dryer |
| CN116007146A (en) * | 2022-12-28 | 2023-04-25 | 中山长虹电器有限公司 | Control method of air conditioner |
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