CN114234362B - Control method and device for judging aging of components and air conditioner - Google Patents
Control method and device for judging aging of components and air conditioner Download PDFInfo
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- CN114234362B CN114234362B CN202111613549.4A CN202111613549A CN114234362B CN 114234362 B CN114234362 B CN 114234362B CN 202111613549 A CN202111613549 A CN 202111613549A CN 114234362 B CN114234362 B CN 114234362B
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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
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/38—Failure diagnosis
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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
- F24F11/46—Improving electric energy efficiency or saving
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/52—Indication arrangements, e.g. displays
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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
Abstract
A control method, a device and an air conditioner for judging component aging calculate the deviation of the current power factor and the normal standard in real time, automatically adjust PI parameter to correct the power factor to reach the state close to the standard, reduce the ratio of useless power, reduce the energy consumption of the air conditioner and provide good use experience for customers. In addition, when the power factor is still deviated after being adjusted and enters a self-checking state when the deviation reaches a certain degree, a fault code is returned after judgment (the internal machine and the external machine are not stopped), and the fault code is displayed through the double eight display tubes of the internal machine to inform a client that the aging of a device needs maintenance. Under the condition that the adjustment cannot be continued, the fault is returned after self-checking confirmation and is displayed through the double eight display tubes of the internal machine, a user is informed of the need of maintenance in time, the phenomenon that the power factor caused by device aging is too low to cause a large amount of waste of electric quantity is avoided, and resources are saved.
Description
Technical Field
The invention relates to the technical field of air conditioner control, in particular to a control method and device for judging component aging and an air conditioner.
Background
The air conditioner power factor is the ratio of useful work to total work, the air conditioner energy consumption is lower when the ratio is closer to 1, in the air conditioner, a power factor correction circuit is called PFC circuit for short, the power factor correction circuit is used for correcting the power factor to enable the power factor to be close to 1 as much as possible, the useful work ratio is improved, when the air conditioner is used for a long time, the phenomenon of circuit component aging is avoided, and the power factor is reduced,
for a user, the user cannot actively know and detect the data, and cannot judge that the device is aged and needs to be maintained, so that the power consumption is increased when the same refrigeration (heating) effect is achieved in the process of using the air conditioner, the electricity cost of the user is increased, the use feeling of the air conditioner is poor, the energy consumption is caused, and the user is not good in use experience, therefore, the invention provides a control method and device for judging the aging of the component and the air conditioner to solve the problems in the prior art.
Disclosure of Invention
In order to overcome the above-mentioned disadvantages of the prior art, it is an object of the present invention to provide: a control method for judging aging of components is characterized by comprising the following steps:
obtaining the deviation between the current power factor and the normal standard power as a deviation value K 0 ；
If the deviation value K is 0 If the deviation is greater than or equal to the first deviation threshold, adjusting the PI parameter;
after the PI parameter is adjusted, obtaining the deviation K' of the adjusted power and the normal standard power;
if the deviation value K is 0 If the current total power P is larger than the second deviation threshold value, the current total power P is obtained 0 Inner tube temperature T 1 And outer tube temperature T 2 And respectively the standard deviation value P from the total power Sign board Standard deviation value T of inner tube temperature Label 1 Standard deviation value T of +/-H and outer tube temperature Label 2 H, comparison;
if the total power P 0 Inner tube temperature T 1 And outer tube temperature T 2 If the standard deviation is within the standard deviation, the controller is judged to be aged, and a fault code is sent to the display device.
As a further improvement of the invention: when the deviation value K is 0 Less than a first deviation threshold K 1 When it is 0 ≤ K 0 ＜K 1 If so, the system defaults to normal deviation and does not adjust.
As a further improvement of the invention: if the deviation value is K 0 If the PI parameter is greater than or equal to the first deviation threshold, adjusting the PI parameter includes:
contrast deviation value K 0 With a first deviation threshold K 1 The magnitude relation of (1) is compared with the deviation value K 0 With a second deviation threshold K 2 The magnitude relationship of (1);
if K 1 ≤K 0 ≤K 2 And adjusting the PI parameter value.
As a further improvement of the invention: if the deviation value is K 0 Greater than the second deviation threshold includes:
contrast deviation value K 0 With a first deviation threshold K 1 ；
When K is 0 Greater than K 1 Time, contrast deviation K 0 Second deviation threshold K 2 The magnitude relationship of (1).
As a further improvement of the invention: the adjusting the PI parameters comprises:
acquiring a deviation value K' of PI parameters to be adjusted;
adjusting and increasing PI parameter to obtain adjusted deviation value K 01 ；
Comparison K 01 And the value of K';
if K 01 < K', recording the adjustment parameters, comparing the deviation value K 01 With a first deviation threshold K 1 The magnitude relation of (1) is compared with the deviation value K 01 With a second deviation threshold K 2 The magnitude relationship of (a);
if K 01 Not less than K', recording adjustment parameters, adjusting again according to the adjustment reduced PI parameter, and obtaining the deviation K of the current power factor and the normal standard frequency 02 Contrast with the deviation value K 02 With a first deviation threshold K 1 The magnitude relation of (1) is compared with the deviation value K 02 With a second deviation threshold K 2 The magnitude relationship of (1).
As a further improvement of the invention: if K 01 < K', recording the adjustment parameters, comparing the deviation value K 01 With a first deviation threshold K 1 The magnitude relation of (1) is compared with the deviation value K 01 With a second deviation threshold K 2 The size relationship of (2) includes:
if K 1 ≤K 01 ≤K 2 Continuing to adjust according to the PI parameter until K 01 ＜K 1 。
As a further improvement of the invention: deviation value K of the current power factor from the normal standard 0 The method comprises the following calculation steps:
calculating a standard power factor value N Datum ；
Calculating the actual power factor N Practice of ；
K 0 The calculation formula of (a) is as follows:
deviation value K 0 And calculating according to the actual power factor and the reference power factor.
As a further improvement of the invention: wherein the standard power factor value N Reference(s) The calculation formula of (a) is as follows:
wherein
The calculation formula of (c) is as follows:
in the formula
The phase difference between the voltage and current waveforms is obtained for the trigonometric transformation.
As a further improvement of the invention: wherein N is Datum As system parameter storage, different reference power factors exist for different models and different energy efficiencies of only one model.
As a further improvement of the invention: wherein the actual power factor N Practice of The calculation formula of (a) is as follows:
wherein
The calculation formula of (a) is as follows:
in the formula
Is the phase difference of the current and voltage in current use.
The invention also provides a control device for judging the aging of the components, which comprises an acquisition module, a detection module, a comparison module, a control module and a self-checking module;
the acquisition module is used for acquiring a reference power factor N of the air conditioner Datum ；
The detection module is used for detecting the current actual power factor N of the air conditioner In fact ；
The comparison module is used for comparing N Datum And N Practice of Obtaining a deviation K 0 And comparing the deviation K 0 With a first deviation threshold K 1 And a second deviation threshold K 2 ；
The control module adaptively adjusts the PI parameter according to the comparison result of the comparison module to correct the actual power factor N Practice of ；
And the self-checking module is used for comparing the current operating parameters with the standard parameters according to the comparison result of the comparison module and judging whether the controller components are aged or not.
The invention also provides an air conditioner for judging aging of components, which comprises a computer readable storage medium and a processor, wherein the computer readable storage medium stores a computer program, and the computer program is read by the processor and runs to realize the control method for judging aging of the components.
The invention has the beneficial effects that:
1. the invention can calculate the deviation between the current actual power factor and the reference power factor in real time, automatically adjust the PI parameter to correct the power factor to reach the state close to the standard, reduce the ratio of idle power, reduce the power consumption influence caused by aging of air conditioner components, improve the reliability of the mainboard and provide good use experience for customers.
2. The invention still deviates after the power factor is adjusted, and enters a self-checking state when the deviation reaches a certain degree, returns a fault code after judgment (the internal machine and the external machine are not stopped), and displays the fault code through the internal machine double eight display tube to inform a client that the device is aged and needs to be maintained, thereby avoiding the large waste of electric quantity caused by the over-low power factor caused by the aging of the device and saving resources.
Drawings
Fig. 1 is a schematic step diagram of a control method for judging aging of a component according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in other sequences than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The invention will now be further described with reference to the accompanying description and examples:
the invention provides a control method for judging aging of components, which comprises the following steps:
obtaining the deviation value K of the current power factor and the normal standard 0 ；
If the current power factor is deviated from the normal standard by a deviation value K 0 If the deviation threshold is greater than or equal to the first deviation threshold, adjusting the PI parameter;
determining adjusted K 0 Deviation from a deviation threshold;
if K 0 Obtaining the current total power P when the deviation threshold is larger than the second deviation threshold 0 Inner tube temperature T 1 And outer tube temperature T 2 And comparing with standard deviation values of total power, inner pipe temperature and outer pipe temperature;
if the total power P 0 Inner tube temperature T 1 And outer tube temperature T 2 If the standard deviation is within the standard deviation, the controller is judged to be aged, and a fault code is sent to the display device.
In one embodiment, the deviation K of the current power factor from the normal standard 0 If the sum deviation threshold is greater than or equal to the first deviation threshold, adjusting the PI parameter includes:
judging the deviation value K 0 Greater than or equal to a first deviation threshold K 1 And is less than or equal to a second deviation threshold K 2 ；
If K 1 ≤K 0 ≤K 2 And adjusting the PI parameter value.
In one embodiment, the alkyl group is K 0 The comparing the deviation threshold value to the second deviation threshold value includes:
comparing the deviation K of the current power factor with the normal standard 0 With a first deviation threshold K 1 ；
When K is 0 Greater than K 1 Then, the deviation K of the current power factor from the normal standard is judged 0 Second deviation threshold K 2 。
In a specific embodiment, the adjusting the PI parameter includes:
acquiring a deviation value K' of PI parameters to be adjusted;
adjusting PI parameters, and obtaining the deviation value K of the current power factor and the normal standard after adjustment 01 ；
Comparison K 01 And the value of K';
if K is 01 < K', recording adjustment parameters, comparing the current power factor with the normal standard deviation K 0 With a first deviation threshold K 1 And a second deviation threshold K 2 ；
If K 0 Not less than K', recording adjustment parameters, adjusting PI parameters again according to the opposite scheme of adjusting PI parameters, and obtaining the deviation K of the current power factor and the normal standard frequency 02 Comparison of the deviation value K 02 With a first deviation threshold K 1 The magnitude relation of (1) is compared with the deviation value K 02 With a second deviation threshold K 2 The magnitude relationship of (1).
In one embodiment, the alkyl group is K 01 < K', recording the adjustment parameters, comparing the deviation value K 01 With a first deviation threshold K 1 The magnitude relation of (1) is compared with the deviation value K 01 With a second deviation threshold K 2 The size relationship of (2) includes:
if K 1 ≤K 0 ≤K 2 Continuing to adjust according to the PI parameter until K 0 ＜K 1 。
In one embodiment, the deviation K of the current power factor from the normal standard 0 The method comprises the following calculation steps:
calculating a standard power factor value N Datum ；
Calculating the actual power factor N Practice of ；
K 0 The calculation formula of (a) is as follows:
deviation value K 0 And calculating according to the actual power factor and the reference power factor.
In one embodiment, the standard power factor value N is Datum The calculation formula of (a) is as follows:
wherein
The calculation formula of (a) is as follows:
in the formula
The phase difference between the voltage and current waveforms is obtained for the trigonometric transformation.
In one embodiment, the trigonometric function of U, I over time is calculated as follows:
in the formula of U Is provided with And I Is provided with Collecting the current and the voltage once every 1ms, and obtaining the change of the current and the voltage along with time through MATLAB simulation fitting; the power factor is defined as the variation of current with voltage, and theta can be set U Is 0.
In one embodiment, where actual power factor N Practice of The calculation formula of (a) is as follows:
wherein
The calculation formula of (c) is as follows:
in the formula
Is the phase difference of the current and voltage in current use.
In one embodiment, a standard power factor value N is calculated Datum The method comprises the following steps:
obtaining a reference power factor N of an air conditioner Datum Calculating the current actual power factor N of the air conditioner Practice of Comparison of N Reference(s) And N Practice of Obtaining a deviation K 0 ；
Setting a first deviation threshold K 1 And a second deviation threshold K 2 Comparison K 0 And K 1 、K 2 Adaptively adjusting PI parameter to make actual power factor N In fact And a reference power factor N Datum Recording the current parameters and storing the parameters to the system to replace the original parameters for storage and use;
when the adaptive adjustment PI parameter can not correct the actual power factor N Practice of And the system enters a self-checking state in the current mode, acquires the parameter comparison standard parameter in the self-checking state, judges and sends the fault code to display.
The invention can calculate the deviation between the current actual power factor and the reference power factor in real time, automatically adjust the PI parameter to correct the power factor to reach the state close to the standard, reduce the ratio of idle work and provide good use experience for customers. And the device still deviates after the power factor is adjusted, enters a self-checking state when the power factor cannot be corrected, returns a fault code after being judged, displays the fault code to inform a client that the device is aged and needs to be maintained, avoids a large amount of waste of electric quantity caused by too low power factor caused by aging of the device, and saves resources.
As shown in fig. 1, the present invention provides a control method for determining aging of a component, including the following steps:
measuring a standard power factor value N according to the model and the exit area (different area voltages and frequencies) Reference(s) Setting the inner ring at 20 deg.c, the inner wind shield of the inner fan, the wind shield of the outer fan, the compressor frequency V and the electronic expansion valve step S as the standard state of self-checking mode, and maintaining the total power P in stable operation state in the said environment Sign board Inner pipe temperature T Label 1 Temperature T of outer tube Label 2 Collecting sampling voltage and current data under commercial power, if the power frequency is 50HZ, the voltage is 220V, each period is 20ms, and 20 data, U, are collected simultaneously by the voltage and the current 1 +U 2 +U 3 …+U 20 ，I 1 +I 2 +I 3 …+I 20 Collecting the signals once every 1ms, and obtaining the change of current and voltage along with time through MATLAB simulation fitting, wherein the power factor is defined as the change of the current along with the voltage, and theta can be set U Is 0:
eliminating U and I respectively to obtain U, I time-varying trigonometric functions, and obtaining phase difference between voltage and current waveforms by trigonometric transformation
And finally, calculating a reference power factor Nreference according to the deviation value between the current and the voltage:
N datum As system parameter storage, different reference power factors exist for different models and different energy efficiencies of only one model.
Keeping the same experimental environment, adjusting the inner ring temperature T outer ring (40 ℃ -0 ℃) by keeping the inner fan middle fan, the outer fan middle wind gear, the compressor frequency V and the electronic expansion valve step number S, then obtaining the total power P ' of the stable state under different outer rings, and the inner pipe temperature T ' under different outer rings ' 1 Outer tube temperature T' 2 And finally, obtaining the compensation value of each ring temperature and the standard temperature:
P supplement device ＝P′-P Sign board
T Supplement 1 ＝T′ 1 -T Label 1
T Supplement 2 ＝T′ 2 -T Label 2
In the actual use process of the air conditioner, the phase difference of the current and the voltage in the current use can be obtained in the same test mode
Obtaining an actual power factor Nactual according to actual phase difference conversion:
finally, calculating the actual power factor deviation value K according to the actual power factor and the reference power factor 0 ：
When the system detects the deviation value K 0 Is less thanFirst deviation threshold K 1 When 0 is not more than K 0 ＜K 1 The system defaults to normal deviation and does not need to adjust. When the system detects the deviation value K 0 Greater than or equal to a first deviation threshold K 1 And is less than or equal to a second deviation threshold K 2 ，K 1 ≤K 0 ≤K 2 The system considers that the power factor is biased and needs to be adjusted, and then the system records the current bias value K 01 = K', adjusting PI parameter value according to set rule, testing adjusted deviation value K again 0 。
Comparison K 01 And K';
if K is 01 If K 'is less than K', it proves that the PI parameter is effectively adjusted according to the current rule, the parameter is stored, and K is compared again 01 ，K 1 . If K 1 ≤K 01 ≤K 2 The system continues to adjust according to the current scheme until K 01 ＜K 1 。
If K 01 If not less than K', the adjustment of PI parameter according to current rule has no effect, and the current deviation value K is recorded 02 Then, the PI parameter test K is adjusted according to a rule reverse scheme 02 Continue to compare K 02 And K'.
The invention can calculate the deviation between the current actual power factor and the reference power factor in real time, automatically adjust the PI parameter to correct the power factor to reach the state close to the standard, reduce the ratio of useless power, reduce the power consumption influence caused by the aging of air conditioner components, improve the reliability of the mainboard and provide good use experience for customers.
When detecting the current power factor deviation value K 01 ≥K 2 And then judging that the PI parameter is not changed, enabling the system to enter a self-checking mode, namely a middle wind shield of an inner fan, a middle wind shield of an outer fan, the frequency V of a compressor, the step number S of an electronic expansion valve, wherein V and S are consistent with V and S, and testing the current total power P Practice of Temperature T of inner and outer tubes Practice 1 ，T Practice 2 ：
Adding compensation values of all data at the current temperature, comparing the total power with the standard power, the temperature of the inner pipe and the outer pipe and the temperature of the standard inner pipe and the standard outer pipe, and judging according to the following fault rules:
if the data simultaneously satisfies the following conditions:
(T label 1 -H)≤(T Practice 1 +T T supplement )(T Label 1 +H)
(T Label 2 -M)≤(T Practice 2 +T Supplement 2 )≤(T Label 2 +M)
P Sign board ＜(P Practice of +P Supplement device )
M and H are interval constants.
And judging that the refrigerant is sufficient in the current state, the main load is normal, the idle work is increased, the power factor is reduced, judging that the components of the controller are aged, and sending an aging fault code of the components to the double eight display tubes of the internal machine for displaying.
If the condition is not met, judging that the problem is other problem, and sending fault codes of other problems to the double eight display tubes of the internal machine for display.
The invention still deviates after the power factor is adjusted, and enters a self-checking state when the deviation reaches a certain degree, returns a fault code after judgment (the internal machine and the external machine are not stopped), and displays the fault code through the internal machine double eight display tube to inform a client that the device is aged and needs to be maintained, thereby avoiding the large waste of electric quantity caused by the over-low power factor caused by the aging of the device and saving resources.
The invention also provides a control device for judging the aging of the components, which comprises an acquisition module, a detection module, a comparison module, a control module and a self-checking module;
the acquisition module is used for acquiring an air conditioner reference power factor N Datum ；
The detection module is used for detecting the current actual power factor N of the air conditioner Practice of ；
The comparison module is used for comparing N Datum And N Practice of Obtaining a deviation K 0 And comparing the deviation K 0 With a first deviation threshold K 1 And a second deviation threshold K 2 ；
The control module adaptively adjusts the PI parameter according to the comparison result of the comparison module to correct the actual power factor N Practice of ；
And the self-checking module compares the current operating parameters with the standard parameters according to the comparison result of the comparison module and judges whether the controller component is aged or not.
The invention also provides an air conditioner for judging aging of components, which comprises a computer readable storage medium and a processor, wherein the computer readable storage medium stores a computer program, and the computer program is read by the processor and runs to realize the control method for judging aging of the components.
The main functions of the invention are as follows: the invention can adaptively correct the power factor deviation, improve the reliability of the mainboard, reduce the power consumption influence caused by the aging of air conditioner components and bring good experience to customers. Under the condition that the adjustment cannot be continued, the fault is returned after self-checking confirmation and is displayed through the double eight display tubes of the internal machine, a user is informed of the need of maintenance in time, the phenomenon that the power factor caused by device aging is too low to cause a large amount of waste of electric quantity is avoided, and resources are saved.
The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Other examples and implementations are within the scope and spirit of the invention and the following claims. For example, due to the nature of software, the functions described above may be implemented using software executed by a processor, hardware, firmware, hardwired, or a combination of any of these. In addition, each functional unit may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.
The units described as separate parts may or may not be physically separate, and parts serving as control devices may or may not be physical units, may be located in one place, or may be distributed on multiple units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention, which is substantially or partly contributed by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
The above description is only an example of the present invention, and is not intended to limit the present invention, and it is obvious to those skilled in the art that various modifications and variations can be made in the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (8)
1. A control method for judging aging of components is characterized by comprising the following steps:
obtaining the deviation between the current power factor and the normal standard power as a deviation value K 0 ；
If the deviation value K is 0 Greater than or equal to the first deviation threshold value, comparing the deviation value K 0 With a first deviation threshold K 1 The magnitude relation of (1) is compared with the deviation value K 0 With a second deviation threshold K 2 The magnitude relationship of (a); if K 1 ≤K 0 ≤K 2 Adjusting the PI parameter;
after the PI parameter is adjusted, the deviation K' between the adjusted power and the normal standard power is obtained, the PI parameter is adjusted and increased, and the deviation value K after adjustment is obtained 01 (ii) a Comparison K 01 And the value of K'; if K 01 < K', recording the adjustment parameters, comparing the deviation value K 01 With a first deviation threshold K 1 The magnitude relation of (1) is compared with the deviation value K 01 With a second deviation threshold K 2 The magnitude relationship of (a); if K 01 Not less than K', recording adjustment parameters, adjusting again according to the adjustment reduced PI parameter, and obtaining the deviation K of the current power factor and the normal standard frequency 02 Comparison of the deviation value K 02 With a first deviation threshold K 1 The magnitude relation of (1) is compared with the deviation value K 02 With a second deviation threshold K 2 The magnitude relationship of (1);
if the deviation value K is 0 If the current total power P is larger than the second deviation threshold value, the current total power P is obtained 0 Inner tube temperature T 1 And outer tube temperature T 2 And respectively the standard deviation value P from the total power Sign board Standard deviation value T of inner tube temperature Label 1 Standard deviation value T of +/-H and outer tube temperature Label 2 H, comparison;
if the total power P 0 Inner tube temperature T 1 And outer tube temperature T 2 If the standard deviation is within the standard deviation, the controller is judged to be aged, and a fault code is sent to the display device.
2. The control method for judging aging of components according to claim 1, wherein if the deviation value K is smaller than the predetermined value 0 Greater than the second deviation threshold includes:
contrast deviation value K 0 With a first deviation threshold K 1 ；
When K is 0 Greater than K 1 Time, contrast deviation value K 0 Second deviation threshold K 2 The magnitude relationship of (1).
3. The control method for judging component aging according to claim 2, wherein the number K is 01 < K', recording the adjustment parameters, comparing the deviation value K 01 With a first deviation threshold K 1 The magnitude relation of (1) is compared with the deviation value K 01 With a second deviation threshold K 2 The size relationship of (2) includes:
if K is 1 ≤K 01 ≤K 2 Continuing to adjust according to the PI parameter until K 01 ＜K 1 。
4. The control method for judging aging of components and parts as claimed in claim 1, wherein the deviation K of the current power factor from the normal standard is 0 The method comprises the following calculation steps:
calculating a standard power factor value N Datum ；
Calculating the actual power factor N Practice of ；
K 0 The calculation formula of (a) is as follows:
deviation value K 0 And calculating according to the actual power factor and the reference power factor.
5. The control method for judging aging of components according to claim 4, wherein the standard power factor value N Datum The calculation formula of (a) is as follows:
wherein
The calculation formula of (c) is as follows:
in the formula
The phase difference between the voltage and current waveforms is obtained for the trigonometric transformation.
6. The control method for judging aging of components according to claim 4, wherein the actual power factor N Practice of The calculation formula of (a) is as follows:
wherein
The calculation formula of (a) is as follows:
in the formula
Is the phase difference of the current and voltage in current use.
7. A control device for judging component aging, which is applied to the control method for judging component aging according to any one of claims 1 to 6, characterized in that: the device comprises an acquisition module, a detection module, a comparison module, a control module and a self-checking module;
the acquisition module is used for acquiring a reference power factor N of the air conditioner Datum ；
The detection moduleThe block is used for detecting the current actual power factor N of the air conditioner Practice of ；
The comparison module is used for comparing the N reference with the N actual to obtain a deviation K 0 And comparing the deviation K 0 With a first deviation threshold K 1 And a second deviation threshold K 2 (ii) a If K 01 < K', recording the adjustment parameters, comparing the deviation value K 01 With a first deviation threshold K 1 The magnitude relation of (1) is compared with the deviation value K 01 With a second deviation threshold K 2 The magnitude relationship of (a); if K 01 Not less than K', recording adjustment parameters, adjusting again according to the adjustment reduced PI parameter, and obtaining the deviation K of the current power factor and the normal standard frequency 02 Comparison of the deviation value K 02 With a first deviation threshold K 1 The magnitude relation of (1) is compared with the deviation value K 02 With a second deviation threshold K 2 The magnitude relationship of (1);
the control module adjusts the PI parameters in a self-adaptive way according to the comparison result of the comparison module to correct the actual power factor N Practice of ；
And the self-checking module is used for comparing the current operating parameters with the standard parameters according to the comparison result of the comparison module and judging whether the controller components are aged or not.
8. The utility model provides a judge ageing air conditioner of components and parts which characterized in that: the control method for judging the aging of the components comprises a computer readable storage medium and a processor, wherein a computer program is stored in the computer readable storage medium, and when the computer program is read and executed by the processor, the control method for judging the aging of the components is realized according to any one of claims 1 to 6.
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