CN101086251A - Air conditioner compressor system and its control method - Google Patents
Air conditioner compressor system and its control method Download PDFInfo
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- CN101086251A CN101086251A CN 200610014099 CN200610014099A CN101086251A CN 101086251 A CN101086251 A CN 101086251A CN 200610014099 CN200610014099 CN 200610014099 CN 200610014099 A CN200610014099 A CN 200610014099A CN 101086251 A CN101086251 A CN 101086251A
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Abstract
The invention discloses an air-conditioner compressor system and its control method, the method is in the early running, limit the inverter compressor frequency until be upgraded to the set frequency, after a specified time, and then operate on the normal frequency. Also include frequency set to initial frequency to start, and up to the limit set frequency, the frequency will be once again reduced to the initial frequency of the process. the said set frequency is 80% of the largest frequency. Its system, including: the inverter compressor can adjust frequency within the normal frequency; have also set up the uniform compressor which start under the load increase; compressor control parts control inverter compressor frequency up to a certain frequency of operation in the early running. The invention through the early start, raising compressor frequency, thus preventing the the phenomenon that household electrical appliances can not start because in preheated state for a long time, and it can quickly reach the normal functioning state and improve the reliability of the products.
Description
Technical field
The present invention relates to a kind of cooler compressor.After particularly relating to a kind of startup in the early stage, when promoting the frequency of frequency-changeable compressor, also with frequency limitation in stabilized frequency, prevented the phenomenon of the frequency breakdown of frequency-changeable compressor to low pressure, and the phenomenon that has prevented household appliances to be in preheat mode for a long time and can't start, thereby can make product reach normal operation rapidly, improve the air conditioner compressor system and the controlling method thereof of reliability of products.
Background technique
In existing air conditioner compressor system, for the revolution with compressor is controlled under the various speed, thereby all very outstanding frequency-changeable compressors in aspect such as use refrigeration work consumption and power consumption, this is because do not use the system of frequency-changeable compressor under the voltage rating of 220V (60Hz), with certain revolution running, and keep certain refrigeration work consumption, therefore usually consume unnecessary electric power.
Because frequency-changeable compressor when temperature descends, can reduce the revolution of compressor electric motor automatically, consumption electric power is minimized, therefore compare with the household appliances that do not use frequency-changeable compressor, can save 20%～30% power consumption.Adopted the compressor assembly of frequency-changeable compressor generally to be applied in the refrigerator or air conditioner of energy-saving type.
Fig. 4 is the controlling method flow chart of existing air conditioner compressor system.
The compressor assembly of existing air conditioner is S1 after starting frequency-changeable compressor, and the operating frequency of frequency-changeable compressor is promoted to the highest frequency S2 that turns round.Afterwards, the frequency the when frequency of frequency-changeable compressor is reduced to primary starting, and start at the uniform velocity compressor S 3.At the uniform velocity compressor obtains corresponding refrigerating/heating power S4 along with increase and the minimizing ON or the OFF of load by the frequency of adjusting frequency-changeable compressor in the normal frequency scope.
But, existing air conditioner compressor system after product is set running in or wait in the morning in the lower environment of temperature, when starting frequency-changeable compressor under high frequency, the frequency of frequency-changeable compressor will be reduced to the low pressure lower limit suddenly.Be in low pressure lower limit control frequency-changeable compressor down with standby after preheating for a long time, thereby can't run well, cause using air conditioner.
Summary of the invention
Technical problem to be solved by this invention is, after a kind of startup in the early stage is provided, when promoting the frequency of frequency-changeable compressor, also with frequency limitation in stabilized frequency, prevented the phenomenon of the frequency breakdown of frequency-changeable compressor to low pressure, and the phenomenon that has prevented household appliances to be in preheat mode for a long time and can't start, thus can make product reach normal operation rapidly, improved the air conditioner compressor system and the controlling method thereof of reliability of products.
The technical solution adopted in the present invention is: a kind of air conditioner compressor system and controlling method thereof, its method is when turning round in the early stage, the frequency of restriction frequency-changeable compressor is promoted to the frequency of setting with it, through behind the scheduled time, it is turned round under normal frequency.Also comprise with frequency setting being that original frequency starts, and be promoted to after the setpoint frequency of restriction, once more frequency is reduced to the process of original frequency.Described setpoint frequency is 80% of a peak frequency.
Also include: judge the process whether load reduces; The result who judges when load reduces, stops the at the uniform velocity running of compressor, and frequency-changeable compressor only turns round.
Also include when compressor start at the uniform velocity, the frequency of frequency-changeable compressor is changed within the normal frequency scope, and judged whether to reach the process of target high pressure.
Its air conditioner compressor system comprises: the frequency-changeable compressor that can adjust frequency within normal frequency range; Also be provided with the at the uniform velocity compressor that starts according to the increase of loading; The frequency of control frequency-changeable compressor rises to the compressor control portion formation of certain frequency run when turning round in the early stage.
Control device is that original frequency starts with the frequency setting of frequency-changeable compressor, and after being promoted to the setpoint frequency of restriction, is reduced to original frequency once more.
When compressor start at the uniform velocity, the frequency-changeable compressor that turns round within the normal frequency scope when load reduces, stops the at the uniform velocity running of compressor.At the uniform velocity compressor is provided with more than one or one.
Setpoint frequency is 80% of a peak frequency.
Air conditioner compressor system of the present invention and controlling method thereof, during running in after product is set or time period that equitemperature is lower in the morning when starting compressor assembly, after starting in the early stage, when improving compressor frequency, the rising frequency limitation of compressor under the frequency of regulation, has been prevented that thus household appliances are because of being in preheat mode for a long time, the phenomenon that can't normally start, and make it reach normal operation rapidly, improved reliability of products.
Description of drawings
Fig. 1 is the installing structure schematic representation of air conditioner of the present invention;
Fig. 2 is that air conditioner compressor system of the present invention constitutes structural representation;
Fig. 3 is the controlling method flow chart of air conditioner compressor system of the present invention;
Fig. 4 is the controlling method flow chart of existing air conditioner compressor system.
Wherein:
100: control device 200: frequency-changeable compressor
300: at the uniform velocity compressor 400: outdoor unit
500: indoor set
Embodiment
Below, describe air conditioner compressor system of the present invention and controlling method thereof in detail with specific embodiment in conjunction with the accompanying drawings.
Fig. 1 is the installing structure schematic representation of air conditioner of the present invention, and Fig. 2 is that air conditioner compressor system of the present invention constitutes structural representation.
As shown in Figure 1 and Figure 2, air conditioner of the present invention is divided into outdoor unit 400 and indoor set 500 haply.
Control device 100 calculates the pressure of the required compressor of household appliances, and judge the frequency-changeable compressor 200 and the ON/OFF of compressor 300 at the uniform velocity, adjust the frequency of frequency-changeable compressor 200, assign control command, start frequency-changeable compressor 200 and compressor 300 at the uniform velocity thus.
Frequency-changeable compressor 200 turns round under the control of control device 100.The order that control device 100 sends is delivered to frequency-changeable compressor 200, starts frequency-changeable compressor 200 and adjusts its frequency according to this order.
At the uniform velocity compressor 300 startup command according to control device 100 when load increases starts.At the uniform velocity compressor 300 of the present invention can be provided with more than one or one.
Below, describe for the method for work of the air conditioner compressor system of the present invention that as above constitutes.
Fig. 3 is the controlling method flow chart of air conditioner compressor system of the present invention.
Control device 100 is assigned after the command signal that starts frequency-changeable compressor 200, and first frequency setting with frequency-changeable compressor 200 is to start S101 after the initial stage frequency.When the peak frequency of frequency-changeable compressor was 100Hz, original frequency was 30% of peak frequency, i.e. 30Hz.
At this moment, control device 100 is checked and definite frequency-changeable compressor 200 and the actuating signal before the compressor 300 at the uniform velocity, and, judge and decision control device 100 needs to give frequency-changeable compressor 200 and the control signal assigned of compressor 300 transmission at the uniform velocity this foundation as next action of decision control.
To the setpoint frequency that limits, the setpoint frequency of qualification is the regulation percentaeg S102 of frequency-changeable compressor peak frequency with the frequency upgrading of the frequency-changeable compressor 200 that as above starts.Compare with the peak frequency of existing frequency-changeable compressor 200, compressor assembly of the present invention is to the setting percentaeg that is defined as peak frequency with frequency upgrading, thus after product is set, in running in or when starting frequency-changeable compressor in the morning, prevented that compressor is directly to be reduced to the phenomenon of low pressure suddenly after the high frequency running, thereby can prevent that household appliances are because of being in preheat mode for a long time, the phenomenon that can't normally start.Concrete as: when peak frequency is 100Hz, setpoint frequency is defined as 80% of peak frequency, i.e. 80Hz.
Then,, the frequency of frequency-changeable compressor 200 is reduced to frequency S103 when starting, starts one or some s' at the uniform velocity compressor 300 according to the degree of load according to the control signal of control device 100.This is to adjust the at the uniform velocity startup quantity of compressor 300 for correspondence along with the load variations of temperature environment variation.
Under the control of control device 100, start at the uniform velocity compressor 200 S104, after at the uniform velocity compressor 200 starts, control device 100 control frequency-changeable compressors 200 running S105, and through judging whether to have reached the desired target high pressure of compressor assembly, within normal range (NR), increase or reduce the frequency of frequency-changeable compressor 200, make compressor assembly reach target high pressure S106.
Judge whether the required load of compressor assembly reduces S107, when load reduced, control device 100 stopped the at the uniform velocity startup of compressor 300, reducing of corresponding load, and individual operation frequency-changeable compressor 200 S108 thus.
And, when frequency-changeable compressor 200 individual operations, the frequency of frequency-changeable compressor 200 can be promoted to highest frequency S109 from original frequency as required.
Control by control device 100, when frequency-changeable compressor 200 primary startings, the frequency limitation that can promote is at the regulation percentaeg of peak frequency, thereby prevented to start the phenomenon that drops to low pressure suddenly that causes, prevented to continue for a long time improper preheat mode thus owing to frequency-changeable compressor directly is promoted to highest frequency.
Claims (10)
1. the controlling method of an air conditioner compressor system is characterized in that, when turning round in the early stage, the frequency of restriction frequency-changeable compressor is promoted to the frequency of setting with it, through behind the scheduled time, it is turned round under normal frequency.
2. the controlling method of air conditioner compressor system according to claim 1 is characterized in that, also comprises with frequency setting being that original frequency starts, and after rising to the setpoint frequency of restriction, once more frequency is reduced to the process of original frequency.
3. the controlling method of air conditioner compressor system according to claim 1 and 2 is characterized in that, described setpoint frequency is 80% of a peak frequency.
4. the controlling method of air conditioner compressor system according to claim 1 is characterized in that, also includes: judge the process whether load reduces; The result who judges when load reduces, stops the at the uniform velocity running of compressor, and frequency-changeable compressor only turns round.
5. the controlling method of air conditioner compressor system according to claim 4 is characterized in that, also includes when compressor start at the uniform velocity, the frequency of frequency-changeable compressor is changed within the normal frequency scope, and judged whether to reach the process of target high pressure.
6. an air conditioner compressor system comprises: the frequency-changeable compressor (200) that can adjust frequency within normal frequency range; It is characterized in that, also be provided with the at the uniform velocity compressor (300) that starts according to the increase of loading; The frequency of control frequency-changeable compressor (200) rises to compressor control portion (100) formation of certain frequency run when turning round in the early stage.
7. air conditioner compressor system according to claim 6 is characterized in that, control device (100) is that original frequency starts with the frequency setting of frequency-changeable compressor (200), after rising to the setpoint frequency of restriction, is reduced to original frequency once more.
8. air conditioner compressor system according to claim 6 is characterized in that, when compressor start at the uniform velocity, the frequency-changeable compressor that turns round within the normal frequency scope when load reduces, stops the at the uniform velocity running of compressor.
9. air conditioner compressor system according to claim 6 is characterized in that at the uniform velocity compressor is provided with more than one or one.
10. according to claim 6 or 7 described air conditioner compressor systems, it is characterized in that setpoint frequency is 80% of a peak frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610014099 CN101086251A (en) | 2006-06-06 | 2006-06-06 | Air conditioner compressor system and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610014099 CN101086251A (en) | 2006-06-06 | 2006-06-06 | Air conditioner compressor system and its control method |
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| CN101086251A true CN101086251A (en) | 2007-12-12 |
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| CN 200610014099 Pending CN101086251A (en) | 2006-06-06 | 2006-06-06 | Air conditioner compressor system and its control method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101619874B (en) * | 2009-07-08 | 2012-06-13 | 海信（山东）空调有限公司 | Dual-mode air conditioning and dual-mode conversion method of air conditioning |
| CN102889668A (en) * | 2012-10-25 | 2013-01-23 | 宁波奥克斯空调有限公司 | Method for controlling variable frequency air conditioner under low voltage |
| CN102032642B (en) * | 2009-09-25 | 2013-02-13 | 珠海格力电器股份有限公司 | Control method of variable frequency air conditioner |
| CN105004008A (en) * | 2015-07-20 | 2015-10-28 | 广东美的暖通设备有限公司 | Low-temperature start control method and system for frequency conversion air conditioner and air conditioner |
| CN106979640A (en) * | 2017-03-16 | 2017-07-25 | 中国科学院理化技术研究所 | Control method of helium screw compressor |
| CN107448376A (en) * | 2017-07-31 | 2017-12-08 | 广东美的暖通设备有限公司 | Frequency-changeable compressor and its raising frequency control method, device and air conditioner |
| US9890982B2 (en) | 2008-08-07 | 2018-02-13 | Carrier Corporation | Discrete frequency operation for unit capacity control |
-
2006
- 2006-06-06 CN CN 200610014099 patent/CN101086251A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9890982B2 (en) | 2008-08-07 | 2018-02-13 | Carrier Corporation | Discrete frequency operation for unit capacity control |
| CN101619874B (en) * | 2009-07-08 | 2012-06-13 | 海信（山东）空调有限公司 | Dual-mode air conditioning and dual-mode conversion method of air conditioning |
| CN102032642B (en) * | 2009-09-25 | 2013-02-13 | 珠海格力电器股份有限公司 | Control method of variable frequency air conditioner |
| CN102889668A (en) * | 2012-10-25 | 2013-01-23 | 宁波奥克斯空调有限公司 | Method for controlling variable frequency air conditioner under low voltage |
| CN102889668B (en) * | 2012-10-25 | 2016-06-15 | 宁波奥克斯空调有限公司 | Convertible frequency air-conditioner control method at lower voltages |
| CN105004008A (en) * | 2015-07-20 | 2015-10-28 | 广东美的暖通设备有限公司 | Low-temperature start control method and system for frequency conversion air conditioner and air conditioner |
| CN105004008B (en) * | 2015-07-20 | 2017-09-12 | 广东美的暖通设备有限公司 | Convertible frequency air-conditioner low-temperature starting control method, control system and its air conditioner |
| CN106979640A (en) * | 2017-03-16 | 2017-07-25 | 中国科学院理化技术研究所 | Control method of helium screw compressor |
| CN106979640B (en) * | 2017-03-16 | 2018-10-02 | 中国科学院理化技术研究所 | Control method of helium screw compressor |
| CN107448376A (en) * | 2017-07-31 | 2017-12-08 | 广东美的暖通设备有限公司 | Frequency-changeable compressor and its raising frequency control method, device and air conditioner |
| CN107448376B (en) * | 2017-07-31 | 2019-05-31 | 广东美的暖通设备有限公司 | Frequency-changeable compressor and its raising frequency control method, device and air conditioner |
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