CN108278718A - A kind of convertible frequency air-conditioner and its control method - Google Patents
A kind of convertible frequency air-conditioner and its control method Download PDFInfo
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- CN108278718A CN108278718A CN201710005084.1A CN201710005084A CN108278718A CN 108278718 A CN108278718 A CN 108278718A CN 201710005084 A CN201710005084 A CN 201710005084A CN 108278718 A CN108278718 A CN 108278718A
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Abstract
This application discloses a kind of convertible frequency air-conditioner and its control methods, including, after convertible frequency air-conditioner startup starts, various system protections are detected first, for system detectio to when meeting stoppage protection condition, memory current operation frequency is F1, then carries out shutdown processing；After shutdown is handled, judge whether to meet protection exit criteria, if meeting protection exit criteria, recalculates frequency and raising frequency operation；If discontented foot protection exit criteria, detects various system protections again；Exit criteria is protected meeting, when recalculating frequency and raising frequency operation, when current frequency is more than or equal to F1*X%, slow raising frequency control is carried out with the rate of Y/HZ, until to target frequency, when frequency is less than F1*X%, raising frequency control is carried out by normal speed for raising frequency.According to the technical solution of the embodiment of the present application, it is possible to reduce frequency oscillation reduces noise, improves comfort.
Description
Technical field
Present invention relates particularly to air-conditioning technical field more particularly to a kind of convertible frequency air-conditioner and its control methods.
Background technology
With the raising of social Living consumption, from the aspect of energy saving and comfort, convertible frequency air-conditioner increasingly by
To the welcome in market, using also increasingly wider.
The convertible frequency air-conditioner of the prior art generally all protects system, system protection generally all can limited frequency, frequency reducing, stop
Machine is protected.Due to the complexity of user environment, Protection parameters, which differ, surely meets all protection situations, may exist
The problem of frequency is shaken up and down.The comfort that user uses is influenced, the noise of lifting frequency is also will produce.
Invention content
In view of drawbacks described above in the prior art or deficiency, it is intended to provide a kind of reduction frequency oscillation, reduces noise, is improved
The convertible frequency air-conditioner and its control method of comfort.
On the one hand, a kind of control method for frequency conversion air conditioner, including：
After convertible frequency air-conditioner startup starts, various system protections are detected first, and system detectio is remembered to when meeting stoppage protection condition
Current operation frequency is F1, then carries out shutdown processing；
After shutdown is handled, judges whether to meet protection exit criteria, if meeting protection exit criteria, recalculate frequency
And raising frequency is run；If discontented foot protection exit criteria, detects various system protections again；
Exit criteria is protected meeting, when recalculating frequency and raising frequency operation, when current frequency is more than or equal to F1*X%, with Y/
The rate of HZ carries out slow raising frequency control, until raising frequency is risen when frequency is less than F1*X% by normal speed to target frequency
Frequency controls.
Further, the control method judges when the various system protections judgements of detection are unsatisfactory for stoppage protection condition
Whether frequency reducing protective condition is met.
Further, the control method judges whether to first enter frequency reducing protection when meeting frequency reducing protective condition, if
It is non-first enter frequency reducing protection then remember current operation frequency be F1.
Further, the control method, when system meets protection exit criteria, first with normal raising frequency rate control
Frequency is run；When current frequency is more than or equal to F1*X%, slow raising frequency control is carried out with the rate of Y/HZ, up to raising frequency to target frequency
Rate carries out raising frequency control when frequency is less than F1*X% by normal speed.
Further, the control method is if not first enter frequency reducing protection, then according to the frequency remembered before in system
Rate F1 is first run with normal raising frequency rate control frequency；When current frequency is more than or equal to F1*X%, delayed with the rate of Y/HZ
Raising frequency controls, until to target frequency, when frequency is less than F1*X%, raising frequency control is carried out by normal speed for raising frequency..
On the other hand, a kind of convertible frequency air-conditioner comprising method control as follows：
After convertible frequency air-conditioner startup starts, various system protections are detected first, and system detectio is remembered to when meeting stoppage protection condition
Current operation frequency is F1, then carries out shutdown processing；
After shutdown is handled, judges whether to meet protection exit criteria, if meeting protection exit criteria, recalculate frequency
And raising frequency is run；If discontented foot protection exit criteria, detects various system protections again；
Exit criteria is protected meeting, when recalculating frequency and raising frequency operation, when current frequency is more than or equal to F1*X%, with Y/
The rate of HZ carries out slow raising frequency control, until raising frequency is risen when frequency is less than F1*X% by normal speed to target frequency
Frequency controls.
Further, the convertible frequency air-conditioner judges when the various system protections judgements of detection are unsatisfactory for stoppage protection condition
Whether frequency reducing protective condition is met.
Further, the convertible frequency air-conditioner judges whether to first enter frequency reducing protection when meeting frequency reducing protective condition, if
It is non-first enter frequency reducing protection then remember current operation frequency be F1.
Further, the convertible frequency air-conditioner, when system meets protection exit criteria, first with normal raising frequency rate control
Frequency is run；When current frequency is more than or equal to F1*X%, slow raising frequency control is carried out with the rate of Y/HZ, up to raising frequency to target frequency
Rate carries out raising frequency control when frequency is less than F1*X% by normal speed.
Further, the convertible frequency air-conditioner is if not first enter frequency reducing protection, then according to the frequency remembered before in system
Rate F1 is first run with normal raising frequency rate control frequency；When current frequency is more than or equal to F1*X%, delayed with the rate of Y/HZ
Raising frequency controls, until to target frequency, when frequency is less than F1*X%, raising frequency control is carried out by normal speed for raising frequency.
According to technical solution provided by the embodiments of the present application, by shutting down in protectiveness and remembering after first time system protection frequency reducing
Current running frequency point, and after system protection recovery, calculate target frequency according to according to demand and environmental working condition again, transporting
After line frequency is more than the X% of memory frequency, FREQUENCY CONTROL is carried out until target frequency in a manner of slow raising frequency；It solves air-conditioning to fall
After electricity, since electrolytic capacitor discharge time is long, if powered in discharge cycle, since microcontroller does not reset, Bu Huijin
Row delay startup, to lead to the problem of dash current；To reduce frequency oscillation, noise is reduced, improves convertible frequency air-conditioner
Comfort.
Description of the drawings
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, the application's is other
Feature, objects and advantages will become more apparent upon：
The flow chart of Fig. 1 control method for frequency conversion air conditioner of the present invention.
Specific implementation mode
The application is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining related invention, rather than the restriction to the invention.It also should be noted that in order to
Convenient for description, is illustrated only in attached drawing and invent relevant part.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Referring to FIG. 1,
A kind of control method for frequency conversion air conditioner, includes the following steps：
After convertible frequency air-conditioner startup starts, various system protections are detected first, and system detectio is remembered to when meeting stoppage protection condition
Current operation frequency is F1, then carries out shutdown processing；
After shutdown is handled, judges whether to meet protection exit criteria, if meeting protection exit criteria, recalculate frequency
And raising frequency is run；If discontented foot protection exit criteria, detects various system protections again；
Exit criteria is protected meeting, when recalculating frequency and raising frequency operation, when current frequency is more than or equal to F1*X%, with Y/
The rate of HZ carries out slow raising frequency control, until raising frequency is risen when frequency is less than F1*X% by normal speed to target frequency
Frequency controls.
After air-conditioning system startup starts and after detecting various system protections, when judgement is unsatisfactory for stoppage protection condition, it is
System carries out judging whether to meet frequency reducing protective condition；If being unsatisfactory for frequency reducing protective condition, controlled with normal speed raising frequency, if full
Sufficient frequency reducing protective condition then judges whether to first enter the protection frequency reducing；
If first entering the protection frequency, remembers current operation frequency and be F1 and carry out down conversion process, meet in system and protect
When exit criteria, target frequency is calculated with environmental working condition according to demand again, is calculated after target frequency first with normal raising frequency
Rate control frequency is run；When current frequency is more than or equal to F1*X%, slow raising frequency control is carried out with the rate of Y/HZ, until raising frequency
To target frequency, when frequency is less than F1*X%, raising frequency control is carried out by normal speed.
If not first entering the protection frequency, then illustrate there has been memory frequency F1 in system, then directly carrying out
Down conversion process calculates target frequency with environmental working condition according to demand again, calculates mesh when system meets protection exit criteria
It is first run with normal raising frequency rate control frequency after marking frequency；Current frequency be more than or equal to F1*X% when, with the rate of Y/HZ into
The slow raising frequency control of row, until to target frequency, when frequency is less than F1*X%, raising frequency control is carried out by normal speed for raising frequency.
The above-mentioned control method of the present invention, by being shut down in protectiveness and remembering current fortune after first time system protection frequency reducing
Line frequency point, and after system protection recovery, target frequency is calculated according to according to demand and environmental working condition again, it is big in running frequency
After the X% of memory frequency, FREQUENCY CONTROL is carried out until target frequency in a manner of slow raising frequency；After solving air-conditioning power down, due to
Electrolytic capacitor discharge time is long, if powered in discharge cycle, since microcontroller does not reset, will not carry out delay startup,
To lead to the problem of dash current；To reduce frequency oscillation, noise is reduced, improves the comfort of convertible frequency air-conditioner.
The present invention additionally provides a kind of convertible frequency air-conditioner, which includes above-mentioned control method.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.People in the art
Member should be appreciated that invention scope involved in the application, however it is not limited to technology made of the specific combination of above-mentioned technical characteristic
Scheme, while should also cover in the case where not departing from the inventive concept, it is carried out by above-mentioned technical characteristic or its equivalent feature
Other technical solutions of arbitrary combination and formation.Such as features described above has similar work(with (but not limited to) disclosed herein
Can technical characteristic replaced mutually and the technical solution that is formed.
Claims (10)
1. a kind of control method for frequency conversion air conditioner, including：
After convertible frequency air-conditioner startup starts, various system protections are detected first, and system detectio is remembered to when meeting stoppage protection condition
Current operation frequency is F1, then carries out shutdown processing；
After shutdown is handled, judges whether to meet protection exit criteria, if meeting protection exit criteria, recalculate frequency
And raising frequency is run；If discontented foot protection exit criteria, detects various system protections again；
Exit criteria is protected meeting, when recalculating frequency and raising frequency operation, when current frequency is more than or equal to F1*X%, with Y/
The rate of HZ carries out slow raising frequency control, until raising frequency is risen when frequency is less than F1*X% by normal speed to target frequency
Frequency controls.
2. control method for frequency conversion air conditioner according to claim 1, which is characterized in that the control method is detecting each germline
When blanket insurance shield judges to be unsatisfactory for stoppage protection condition, judge whether to meet frequency reducing protective condition.
3. control method for frequency conversion air conditioner according to claim 2, which is characterized in that the control method is meeting frequency reducing guarantor
When guard strip part, judge whether to first enter frequency reducing protection, if not it is F1 to first enter frequency reducing protection then to remember current operation frequency.
4. the control method of convertible frequency air-conditioner according to claim 3, which is characterized in that control method meets in system and protects
When protecting exit criteria, first run with normal raising frequency rate control frequency；When current frequency is more than or equal to F1*X%, with Y/HZ's
Rate carries out slow raising frequency control, until to target frequency, when frequency is less than F1*X%, raising frequency control is carried out by normal speed for raising frequency
System.
5. the control method of convertible frequency air-conditioner according to claim 3, which is characterized in that the control method is if not for the first time
It protects, is then first run with normal raising frequency rate control frequency according to the frequency F1 remembered before in system into frequency reducing；Currently
When frequency is more than or equal to F1*X%, slow raising frequency control is carried out with the rate of Y/HZ, until raising frequency is to target frequency, when frequency is less than
When F1*X%, raising frequency control is carried out by normal speed.
6. a kind of convertible frequency air-conditioner comprising method control as follows：
After convertible frequency air-conditioner startup starts, various system protections are detected first, and system detectio is remembered to when meeting stoppage protection condition
Current operation frequency is F1, then carries out shutdown processing；
After shutdown is handled, judges whether to meet protection exit criteria, if meeting protection exit criteria, recalculate frequency
And raising frequency is run；If discontented foot protection exit criteria, detects various system protections again；
Exit criteria is protected meeting, when recalculating frequency and raising frequency operation, when current frequency is more than or equal to F1*X%, with Y/
The rate of HZ carries out slow raising frequency control, until raising frequency is risen when frequency is less than F1*X% by normal speed to target frequency
Frequency controls.
7. convertible frequency air-conditioner according to claim 6, which is characterized in that the convertible frequency air-conditioner detects various system protections, sentences
It is disconnected when being unsatisfactory for stoppage protection condition, judge whether to meet frequency reducing protective condition.
8. convertible frequency air-conditioner according to claim 7, which is characterized in that the convertible frequency air-conditioner is meeting frequency reducing protective condition
When, judge whether to first enter frequency reducing protection, if not it is F1 to first enter frequency reducing protection then to remember current operation frequency.
9. convertible frequency air-conditioner according to claim 8, which is characterized in that the convertible frequency air-conditioner meets protection in system and exits item
When part, first run with normal raising frequency rate control frequency；When current frequency is more than or equal to F1*X%, carried out with the rate of Y/HZ
Slow raising frequency control, until to target frequency, when frequency is less than F1*X%, raising frequency control is carried out by normal speed for raising frequency.
10. convertible frequency air-conditioner according to claim 8, which is characterized in that the convertible frequency air-conditioner is if not first enter frequency reducing
Protection is then first run with normal raising frequency rate control frequency according to the frequency F1 remembered before in system；Current frequency is more than
When equal to F1*X%, slow raising frequency control is carried out with the rate of Y/HZ, up to raising frequency to target frequency, when frequency is less than F1*X%,
Raising frequency control is carried out by normal speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710005084.1A CN108278718B (en) | 2017-01-04 | 2017-01-04 | Variable frequency air conditioner and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710005084.1A CN108278718B (en) | 2017-01-04 | 2017-01-04 | Variable frequency air conditioner and control method thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN108278718A true CN108278718A (en) | 2018-07-13 |
| CN108278718B CN108278718B (en) | 2020-03-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710005084.1A Active CN108278718B (en) | 2017-01-04 | 2017-01-04 | Variable frequency air conditioner and control method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112728741A (en) * | 2020-12-30 | 2021-04-30 | 珠海拓芯科技有限公司 | Control method and device of air conditioner fan and air conditioner |
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| CN104266305A (en) * | 2014-09-02 | 2015-01-07 | 广东美的集团芜湖制冷设备有限公司 | Variable-frequency air conditioner control device and method and variable-frequency air conditioner |
| CN105222441A (en) * | 2015-09-01 | 2016-01-06 | 珠海格力电器股份有限公司 | Control method and device of refrigeration system |
| CN106121982A (en) * | 2016-06-27 | 2016-11-16 | 广东美的制冷设备有限公司 | The compressor control method of convertible frequency air-conditioner and device, convertible frequency air-conditioner |
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| JP2010022079A (en) * | 2008-07-08 | 2010-01-28 | Delta Electronics Inc | Discontinuous protection method for inverter current clamping |
| CN102345915A (en) * | 2011-08-02 | 2012-02-08 | 宁波奥克斯电气有限公司 | Fault operation control method of DC (direct current) convertible frequency air conditioner |
| CN104266305A (en) * | 2014-09-02 | 2015-01-07 | 广东美的集团芜湖制冷设备有限公司 | Variable-frequency air conditioner control device and method and variable-frequency air conditioner |
| CN105222441A (en) * | 2015-09-01 | 2016-01-06 | 珠海格力电器股份有限公司 | Control method and device of refrigeration system |
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| CN112728741A (en) * | 2020-12-30 | 2021-04-30 | 珠海拓芯科技有限公司 | Control method and device of air conditioner fan and air conditioner |
| CN112728741B (en) * | 2020-12-30 | 2022-05-13 | 珠海拓芯科技有限公司 | Control method and device of air conditioner fan and air conditioner |
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| CN108278718B (en) | 2020-03-10 |
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