CN105091196B - Adjusting method, device and the frequency-conversion air-conditioning system of frequency-changeable compressor running frequency - Google Patents

Adjusting method, device and the frequency-conversion air-conditioning system of frequency-changeable compressor running frequency Download PDF

Info

Publication number
CN105091196B
CN105091196B CN201410196966.7A CN201410196966A CN105091196B CN 105091196 B CN105091196 B CN 105091196B CN 201410196966 A CN201410196966 A CN 201410196966A CN 105091196 B CN105091196 B CN 105091196B
Authority
CN
China
Prior art keywords
frequency
electric current
changeable compressor
object run
current
Prior art date
Application number
CN201410196966.7A
Other languages
Chinese (zh)
Other versions
CN105091196A (en
Inventor
罗彬�
Original Assignee
广东美的暖通设备有限公司
美的集团股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 广东美的暖通设备有限公司, 美的集团股份有限公司 filed Critical 广东美的暖通设备有限公司
Priority to CN201410196966.7A priority Critical patent/CN105091196B/en
Priority claimed from US14/670,974 external-priority patent/US10197320B2/en
Publication of CN105091196A publication Critical patent/CN105091196A/en
Application granted granted Critical
Publication of CN105091196B publication Critical patent/CN105091196B/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/89Arrangement or mounting of control or safety devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/30Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63Electronic processing
    • F24F11/65Electronic processing for selecting an operating mode

Abstract

The invention discloses a kind of adjusting method of frequency-changeable compressor running frequency, including:When detecting that convertible frequency air-conditioner is in heating mode, the object run electric current of frequency-changeable compressor is obtained;According to the running frequency of object run current regulation frequency-changeable compressor;Obtain continuous working period and the current operation frequency of frequency-changeable compressor;When judging that the continuous working period is more than or equal to the first preset time and current operation frequency and is more than or equal to predeterminated frequency, the maximum frequency of operation of frequency-changeable compressor in the second preset time of acquisition;Electric current correction is obtained according to maximum frequency of operation, and object run electric current is modified according to electric current correction to update object run electric current.The adjusting method of the frequency-changeable compressor running frequency of the present invention when machine and outdoor unit do not communicate indoors, can automatically adjust the running frequency of frequency-changeable compressor by autonomous learning.The invention also discloses a kind of adjusting means of frequency-changeable compressor running frequency and include its frequency-conversion air-conditioning system.

Description

Adjusting method, device and the frequency-conversion air-conditioning system of frequency-changeable compressor running frequency

Technical field

The present invention relates to air-conditioning technical field, more particularly to a kind of adjusting method of frequency-changeable compressor running frequency, one kind The adjusting means of frequency-changeable compressor running frequency and a kind of frequency conversion of the adjusting means including the frequency-changeable compressor running frequency Air-conditioning system.

Background technology

With the continuous development of air-conditioning technical, DC frequency converting air-conditioner is increasingly welcome by market, and its sales volume also exists Fast lifting.At present, the convertible frequency air-conditioner of in the market is required to supporting installation, and indoor set, outdoor unit need special supporting communication Mode realizes that the compressor to outdoor unit is controlled.Therefore, indoor set, outdoor unit installation are it has to be ensured that synchronous, supporting.

The framework of existing frequency-conversion air-conditioning system is as shown in figure 1, outdoor unit must receive from interior in the course of the work A series of signals such as the switching on and shutting down of the indoor set of specific transmission that machine is sent rule, temperature setting, indoor temperature or by interior Signal after machine processing, so as to realize that the compressor of control outdoor unit is run with specific frequency, and at any time according to interior Change to adjust the running frequency of compressor., could be complete in the prior art, it is necessary to which indoor set sends corresponding signal to outdoor unit The control of all parts in paired outdoor unit, that is to say, that in the case that machine and outdoor unit do not communicate indoors, outdoor unit can not Normal operation.Therefore, existing air-conditioning system needs to be improved.

The content of the invention

The purpose of the present invention is intended at least solve one of above-mentioned technical problem to a certain extent.

Therefore, it is an object of the present invention to propose a kind of adjusting method of frequency-changeable compressor running frequency, the frequency conversion The adjusting method of compressor operating frequency can adjust the fortune of frequency-changeable compressor in the case that machine and outdoor unit do not communicate indoors Line frequency, reduces control parameter transmitting procedure, and reliability is high.

It is another object of the present invention to propose a kind of adjusting means of frequency-changeable compressor running frequency.

Another object of the present invention is to propose a kind of frequency-conversion air-conditioning system.

To reach above-mentioned purpose, one aspect of the present invention embodiment proposes a kind of regulation side of frequency-changeable compressor running frequency Method, the adjusting method of the frequency-changeable compressor running frequency comprise the following steps:Whether detection convertible frequency air-conditioner is in heating mode;When When the convertible frequency air-conditioner is in heating mode, the object run electric current of the frequency-changeable compressor is obtained;According to the object run The running frequency of frequency-changeable compressor described in current regulation;Obtain the continuous working period of the frequency-changeable compressor and current operation frequency Rate;Judge the continuous working period whether be more than or equal to the first preset time and the current operation frequency whether be more than or Equal to predeterminated frequency, and when the continuous working period is more than or equal to first preset time and the current operation frequency During more than or equal to the predeterminated frequency, the maximum frequency of operation of the frequency-changeable compressor in the second preset time is obtained;According to The maximum frequency of operation obtains electric current correction, and the object run electric current is modified according to the electric current correction To update the object run electric current.

The adjusting method for the frequency-changeable compressor running frequency that the embodiment of the present invention proposes, made detecting that convertible frequency air-conditioner is in During heat pattern, according to the running frequency of the object run current regulation frequency-changeable compressor of the frequency-changeable compressor of acquisition, and when judgement When continuous working period is more than or equal to the first preset time and current operation frequency and is more than or equal to predeterminated frequency, according to acquisition Maximum frequency of operation to obtain electric current correction, and object run electric current is updated according to electric current correction, so as to realize frequency conversion Compressor operating frequency automatically adjusts.The adjusting method of the frequency-changeable compressor running frequency can machine and outdoor unit be indoors In the case of communication, the running frequency of frequency-changeable compressor is automatically adjusted by autonomous learning, reduces control parameter and is transmitted across Journey, reliability are high.

According to one embodiment of present invention, the object run electric current is carried out according to the electric current correction described Amendment is further comprising the steps of after the object run electric current to update:The continuous working period is zeroed.

According to one embodiment of present invention, the electric current correction is:

Δ I=A × Hzmax2+B×Hzmax+C

Wherein, Hzmax is the maximum frequency of operation, and A, B and C are preset constant.

According to one embodiment of present invention, the object run electric current is updated according to below equation:

I’AM0=IAM0+ΔI

Wherein, IAM0For the object run electric current, I 'AM0For the object run electric current after renewal.

To reach above-mentioned purpose, another aspect of the present invention embodiment also proposed a kind of tune of frequency-changeable compressor running frequency Regulating device, the adjusting means of the frequency-changeable compressor running frequency include:Heating mode detection module, it is for detecting convertible frequency air-conditioner It is no to be in heating mode;Object run electric current acquisition module, for when the convertible frequency air-conditioner is in heating mode, described in acquisition The object run electric current of frequency-changeable compressor;Running frequency adjustment module, for the change according to the object run current regulation The running frequency of frequency compressor;Continuous working period and current operation frequency acquisition module, for obtaining the frequency-changeable compressor Continuous working period and current operation frequency;Processing module, for judging whether the continuous working period is more than or equal to Whether the first preset time and the current operation frequency are more than or equal to predeterminated frequency, and when the continuous working period is more than Or when equal to first preset time and the current operation frequency being more than or equal to the predeterminated frequency, it is default to obtain second The maximum frequency of operation of the frequency-changeable compressor in time;Object run electric current update module, for according to the maximum operation Frequency acquisition electric current correction, and the object run electric current is modified to update the mesh according to the electric current correction Mark running current.

The adjusting means for the frequency-changeable compressor running frequency that the embodiment of the present invention proposes detects in heating mode detection module When being in heating mode to convertible frequency air-conditioner, frequency conversion pressure that running frequency adjustment module obtains according to object run electric current acquisition module The running frequency of the object run current regulation frequency-changeable compressor of contracting machine, and when processing module judge the continuous working period be more than or When being more than or equal to predeterminated frequency equal to the first preset time and current operation frequency, object run electric current update module is according to place The maximum frequency of operation that reason module obtains updates object run electric current to obtain electric current correction according to electric current correction, from And realize automatically adjusting for frequency-changeable compressor running frequency.The adjusting means of the frequency-changeable compressor running frequency being capable of machine indoors In the case of not communicated with outdoor unit, the running frequency of frequency-changeable compressor is automatically adjusted by autonomous learning, reduces control Parameter transmitting procedure, reliability are high.

According to one embodiment of present invention, in addition to:Be zeroed module, and the zero module is used in the object run After electric current update module updates the object run electric current, the continuous working period is zeroed.

According to one embodiment of present invention, the electric current correction is:

Δ I=A × Hzmax2+B×Hzmax+C

Wherein, Hzmax is the maximum frequency of operation, and A, B and C are preset constant.

According to one embodiment of present invention, the object run electric current update module updates the mesh according to below equation Mark running current:

I’AM0=IAM0+ΔI

Wherein, IAM0For the object run electric current, I 'AM0For the object run electric current after renewal.

To reach above-mentioned purpose, further aspect of the present invention embodiment also proposed a kind of frequency-conversion air-conditioning system, and the frequency conversion is empty Adjusting system includes:Signal sends terminal, and the signal sends terminal and is used to send control signal;Frequency-changeable compressor;Current detecting Unit, the current detecting unit are connected with the frequency-changeable compressor, and the current detecting unit is used to detect the frequency conversion pressure The current flow of contracting machine;And outdoor unit control unit, the outdoor unit control unit include described frequency-changeable compressor and run The adjusting means and reception signal terminal of frequency, wherein, the reception signal terminal is used to receive the control signal;The change The adjusting means of frequency compressor operating frequency and the reception signal terminal, the current detecting unit and the frequency-changeable compressor It is respectively connected with, the adjusting means of the frequency-changeable compressor running frequency is used to be adjusted according to the control signal and the current flow Save the running frequency of the frequency-changeable compressor.

Frequency-conversion air-conditioning system according to embodiments of the present invention, received by the reception signal terminal in outdoor unit control unit Signal sends the control signal that terminal is sent, and then the adjusting means of the frequency-changeable compressor running frequency in outdoor unit control unit The running frequency of frequency-changeable compressor is adjusted according to control signal and the current flow of current detecting unit detection.The convertible frequency air-conditioner System can adjust the running frequency of the frequency-changeable compressor of outdoor unit by autonomous learning independently of indoor set, reduce control Parameter transmitting procedure processed, the complexity of air-conditioning system is reduced, improves air-conditioning system operational reliability.

According to one embodiment of present invention, frequency-conversion air-conditioning system also includes indoor set control unit, the indoor set control Unit processed is used to receive the control signal, and the control signal is sent to the reception signal terminal.

The additional aspect of the present invention and advantage will be set forth in part in the description, and will partly become from the following description Obtain substantially, or recognized by the practice of the present invention.

Brief description of the drawings

Of the invention above-mentioned and/or additional aspect and advantage will become from the following description of the accompanying drawings of embodiments Substantially and it is readily appreciated that, wherein:

Fig. 1 is the Organization Chart of existing frequency-conversion air-conditioning system;

Fig. 2 is the structured flowchart according to the frequency-conversion air-conditioning system of the embodiment of the present invention;

Fig. 3 is the Organization Chart according to the frequency-conversion air-conditioning system of a specific embodiment of the invention;

Fig. 4 is the flow chart according to the adjusting method of the frequency-changeable compressor running frequency of embodiment;And

Fig. 5 is the structured flowchart according to the adjusting means of the frequency-changeable compressor running frequency of the embodiment of the present invention.

Reference:

Indoor set 1:Indoor set control unit 30, indoor fan 14 and indoor choke valve 15;

Outdoor unit 2:Frequency-changeable compressor Mc, current detecting unit 20, outdoor unit control unit 21, outer machine environment temperature sensing Device 22, outer machine system protection sensor 23, systematic parameter acquisition module 24, outer blower fan Mf, outer expansion valve Ev and outer four-way valve SV;

Remote control 101;

Line control machine 102;

Indoor set control unit 30:Interior machine control signal receiving module 11, interior machine control processor 12 and signal transmission Module 13;

Outdoor unit control unit 21:The adjusting means 210 of frequency-changeable compressor running frequency, reception signal terminal 211, blower fan Output control module 212, outer expansion valve output control module 213 and outer four-way valve output control module 214.

Embodiment

Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not construed as limiting the claims.

Following disclosure provides many different embodiments or example is used for realizing the different structure of the present invention.For letter Change disclosure of the invention, hereinafter the part and setting of specific examples are described.Certainly, they are only example, and Purpose does not lie in the limitation present invention.In addition, the present invention can in different examples repeat reference numerals and/or letter.It is this heavy It is the relation between itself not indicating discussed various embodiments and/or setting for purposes of simplicity and clarity again.This Outside, the invention provides various specific techniques and material examples, but those of ordinary skill in the art can be appreciated that The applicable property of other techniques and/or the use of other materials.In addition, fisrt feature described below second feature it " on " structure can include the first and second features and be formed as the embodiment that directly contacts, other feature shape can also be included Into the embodiment between the first and second features, such first and second feature may not be direct contact.

In the description of the invention, it is necessary to explanation, unless otherwise prescribed and limit, term " installation ", " connected ", " connection " should be interpreted broadly, for example, it may be mechanical connection or electrical connection or the connection of two element internals, can To be to be joined directly together, can also be indirectly connected by intermediary, for the ordinary skill in the art, can basis Concrete condition understands the concrete meaning of above-mentioned term.

With reference to the accompanying drawings come the adjusting method of the frequency-changeable compressor running frequency that describes to propose according to embodiments of the present invention, The convertible frequency air-conditioner of the adjusting means of frequency-changeable compressor running frequency and adjusting means including the frequency-changeable compressor running frequency System.

First, the frequency-conversion air-conditioning system that embodiment proposes with reference to the accompanying drawings to describe the present invention.

As shown in Fig. 2 the frequency-conversion air-conditioning system of the embodiment of the present invention includes:Signal send terminal 10, frequency-changeable compressor Mc, Current detecting unit 20 and outdoor unit control unit 21.Wherein, signal sends terminal 10 and is used to send control signal.Electric current is examined Survey unit 20 with frequency-changeable compressor Mc to be connected, current detecting unit 20 is used for the current flow for detecting frequency-changeable compressor Mc.It is outdoor Machine control unit 21 includes the adjusting means 210 and reception signal terminal 211 of frequency-changeable compressor running frequency, wherein, signal connects Terminal 211 is received to be used to receive control signal, adjusting means 210 and reception signal terminal 211, the electricity of frequency-changeable compressor running frequency Stream detection unit 20 and frequency-changeable compressor Mc are respectively connected with, and the adjusting means 210 of frequency-changeable compressor running frequency is used for according to control Signal and current flow regulation frequency-changeable compressor Mc processed running frequency.

Further, in one embodiment of the invention, frequency-conversion air-conditioning system also includes indoor set control unit 30, room Interior machine control unit 30 is used to receive control signal, and sends control signals to reception signal terminal 211.

Further, Fig. 3 is the Organization Chart according to the frequency-conversion air-conditioning system of a specific embodiment of the invention.Such as Fig. 3 institutes Show, the frequency-conversion air-conditioning system includes indoor set 1 and outdoor unit 2.Wherein, outdoor unit 2 includes frequency-changeable compressor Mc, current detecting list Member 20 and outdoor unit control unit 21.Wherein, current detecting unit 20 can be compressor current sensor, and the compression is electromechanical Flow sensor may be mounted on the circuit board of outdoor unit control unit 21.It can be remote control 101, line that signal, which sends terminal 10, Device 102 etc. is controlled, it can be switching on and shutting down control signal and model selection control signal that signal, which sends the control signal that terminal 10 is sent,. The adjusting means 210 of frequency-changeable compressor running frequency in outdoor unit control unit 21 is according to model selection control signal and frequency conversion Compressor Mc current flow adjusts frequency-changeable compressor Mc running frequency.Specifically, as shown in figure 3, reception signal terminal 211 be signal receiving module, and is only received by control signal receiving module and directly sent out from remote control 101, line control machine 102 The switch machine control signal and model selection control signal sent, or received by control signal receiving module and come from indoor set 1 The switch machine control signal and model selection control signal of transmission.

In addition, as shown in figure 3, outdoor unit 2 also includes outer blower fan Mf, outer expansion valve Ev, outer four-way valve SV and outer machine environment Temperature sensor 22, outer machine system protection sensor 23, systematic parameter acquisition module 24.Wherein, outer machine environment temperature sensor 22 current environmental temperature for detecting the local environment of outdoor unit 2.Systematic parameter acquisition module 24 be connected to each sensor with Between outdoor unit control unit 21, and by current detecting unit 20, outer machine environment temperature sensor 22 and outer machine system protection The parameter that sensor 23 gathers is sent to outdoor unit control unit 21 after being handled.Specifically, in the implementation of the present invention In example, outdoor unit control unit 21 also includes blower fan output control module 212, outer expansion valve output control module 213 and outer Four-way valve output control module 214.Wherein, the adjusting means 210 of frequency-changeable compressor running frequency, blower fan output control module 212nd, outer expansion valve output control module 213, outer four-way valve output control module 214 respectively with frequency-changeable compressor Mc, outer blower fan Mf, outer expansion valve Ev, outer four-way valve SV are connected, and the collection signal and signal exported respectively according to systematic parameter acquisition module 24 The control signal that receiving terminal 211 receives is realized to frequency-changeable compressor Mc, outer blower fan Mf, outer expansion valve Ev and outer four-way valve SV Corresponding control.

As shown in figure 3, indoor set 1 includes the master such as indoor set control unit 30, indoor fan 14 and indoor choke valve 15 Want electric component.Wherein, indoor set control unit 30 can include interior machine control signal receiving module 11, interior machine control processor 12 and signal transmission module 13.Indoor fan 14, indoor choke valve 15 and interior machine control signal receiving module 11 respectively with Interior machine control processor 12 is connected, and indoor fan 14 and indoor choke valve 15 are controlled by interior machine control processor 12.Signal transmits Module 13 is connected with reception signal terminal 211, and indoor set 1 will switch machine control signal by signal transmission module 13 and pattern is selected Select the control signal receiving module that control signal is transferred to reception signal terminal 211 with general transmission rule.Wherein, switching on and shutting down Control signal and model selection control signal can be transmitted directly to the signal in outdoor unit 2 by remote control 101, line control machine 102 Receiving terminal 211.Or indoor set 1 is received from remote control 101, line control machine 102 by interior machine control signal receiving module 11 The switch machine control signal and model selection control signal of transmission, then indoor set 1 by signal transmission module 13 by switching on and shutting down The control signal that control signal and model selection control signal are transmitted to reception signal terminal 211 with general transmission rule receives Module.

In one embodiment of the invention, frequency-conversion air-conditioning system can be according to switch machine control signal and model selection control The start and stop and model selection of the outer machine 2 of signal control room processed.Wherein, when detecting that convertible frequency air-conditioner is in heating mode, frequency conversion pressure The adjusting means 210 of contracting machine running frequency obtains object run electric current IAM0With according to object run electric current IAM0Adjust frequency conversion compression Machine Mc running frequency, and when frequency-changeable compressor Mc continuous working period is more than or equal to the first preset time such as E minutes And current operation frequency obtains frequency conversion pressure in the second preset time such as X minutes when being more than or equal to predeterminated frequency such as F hertz Contracting machine Mc maximum frequency of operation Hzmax, and electric current correction amount I is obtained according to maximum frequency of operation Hzmax, and then according to electricity Flow correction amount I amendment object run electric currents IAM0To update object run electric current IAM0, finally according to the object run after renewal Electric current IAM0Regulation frequency-changeable compressor Mc running frequency realizes automatic frequency-conversion control.

Specifically, in convertible frequency air-conditioner initial start-up, the adjusting means 210 of frequency-changeable compressor running frequency can be according to room The capacity of water of outer machine 2 sets frequency-changeable compressor Mc object run electric current IAM0For pre-set current value, such as the room of 3 Outer machine 2, object run electric current I is setAM0For 10A and for the outdoor unit 2 of 4, object run electric current I is setAM0For 13A.Enter One step, in one embodiment of the invention, when frequency-changeable compressor Mc is shut down, the regulation dress of frequency-changeable compressor running frequency Putting 210 can be by the object run electric current I after renewalAM0Frequency-changeable compressor Mc object run during as start next time of outdoor unit 2 Electric current IAM0.Further, in one embodiment of the invention, when frequency-changeable compressor Mc is run, frequency-changeable compressor operation frequency The adjusting means 210 of rate can also obtain object run electric current I according to model selection control signalAM0

Therefore, the frequency-conversion air-conditioning system of the embodiment of the present invention can convertible frequency air-conditioner be in do not communicate heating mode when, According to the capacity of water of outdoor unit 2 and frequency-changeable compressor Mc continuous working period, current operation frequency, maximum frequency of operation The parameters such as Hzmax intelligently automatically adjust frequency-changeable compressor Mc running frequency, the frequency-changeable compressor Mc ability is sent out in time Wave, be rapidly reached design temperature.

In one embodiment of the invention, frequency-conversion air-conditioning system can be that one-to-one system or one drag polyphyly System, and the frequency-conversion air-conditioning system can be single cooler or air conditioner.Wherein indoor set 1 is not by indoor environment temperature Communicated etc. parameter to outdoor unit 2, and be only the switching on and shutting down control sent according to remote control 101, line control machine 102 or indoor set 1 The switch and change mode of operation of signal processed and model selection control signal control outdoor unit 2.The frequency conversion of the embodiment of the present invention is empty Adjusting system can indoors machine 1 and outdoor unit 2 without controlling frequency-changeable compressor Mc under the heating mode of communication, outdoor unit 2 Outdoor unit control unit 21 can autonomous learning complete the electric component of the outdoor units 2 such as rapid control frequency-changeable compressor Mc, from And indoor temperature is caused to reach and maintain design temperature.

Further, in one embodiment of the invention, outdoor unit control unit 21 is receiving switching on and shutting down control letter Number when, entering such as S seconds line delay certain time is handled, to prevent client from, because maloperation selection causes outdoor unit 2 to start operating, keeping away Exempt from outdoor unit control unit 21 and carry out false judgment.That is, outdoor unit control unit 21 is receiving switching on and shutting down control letter After number, the delay preset time such as S seconds start shooting or shut down.

Frequency-conversion air-conditioning system according to embodiments of the present invention, received by the reception signal terminal in outdoor unit control unit Signal sends the control signal that terminal is sent, and then the adjusting means of the frequency-changeable compressor running frequency in outdoor unit control unit When convertible frequency air-conditioner is in the heating mode not communicated, adjusted according to control signal and the current flow of current detecting unit detection Save the running frequency of frequency-changeable compressor.The frequency-conversion air-conditioning system can lead to according to the parameter of frequency-changeable compressor independently of indoor set Autonomous learning is crossed to automatically adjust the running frequency of frequency-changeable compressor to reach and maintain design temperature, without indoor set and outdoor Machine carries out specific communication to transmit corresponding control parameter so that the structure of frequency-conversion air-conditioning system becomes simpler, significantly Cost is reduced, reduces control parameter transmitting procedure, and improves air-conditioning system operational reliability.

The adjusting method of frequency-changeable compressor running frequency proposed according to embodiments of the present invention described with reference to the accompanying drawings.

As shown in figure 4, the adjusting method of the frequency-changeable compressor running frequency of the embodiment of the present invention comprises the following steps:

Whether S1, detection convertible frequency air-conditioner are in heating mode.

S2, when convertible frequency air-conditioner is in heating mode, obtain the object run electric current of frequency-changeable compressor.

In convertible frequency air-conditioner initial start-up, the object run of frequency-changeable compressor can be set according to the capacity of water of outdoor unit Electric current is pre-set current value, such as the outdoor unit of 3, and it is 10A and the outdoor unit for 4 to set object run electric current, It is 13A to set object run electric current.Further, in one embodiment of the invention, when frequency-changeable compressor is run, may be used also To obtain object run electric current according to model selection control signal.

S3, according to the running frequency of object run current regulation frequency-changeable compressor.

After the running frequency of regulation frequency-changeable compressor, into step S4.

S4, obtain continuous working period and the current operation frequency of frequency-changeable compressor.

S5, judge the continuous working period whether be more than or equal to the first preset time and current operation frequency whether be more than or Equal to predeterminated frequency, and when the continuous working period is more than or equal in advance more than or equal to the first preset time and current operation frequency If during frequency, obtain the maximum frequency of operation of frequency-changeable compressor in the second preset time.

S6, electric current correction is obtained according to maximum frequency of operation, and object run electric current carried out according to electric current correction Correct to update object run electric current.

In one embodiment of the invention, electric current correction can be:

Δ I=A × Hzmax2+B×Hzmax+C

Wherein, Hzmax is maximum frequency of operation, and A, B and C are preset constant, and electric current correction amount I is more than or equal to zero Positive number.

Further, in one embodiment of the invention, object run electric current can be updated according to below equation:

I’AM0=IAM0+ΔI

Wherein, IAM0For object run electric current, I 'AM0For the object run electric current after renewal.Because electric current correction is big In or null positive number, therefore update after object run electric current be more than renewal before object run electric current.Need what is illustrated It is that the continuous working period is more than or equal to the first preset time and current operation frequency illustrates frequency conversion more than or equal to predeterminated frequency The object run electric current of compressor is too small, and frequency-changeable compressor is unable to reach design temperature requirement, therefore, it is necessary to increases frequency conversion compression The object run electric current of machine.

Further, in one embodiment of the invention, can be by the target after renewal when frequency-changeable compressor is shut down The object run electric current of frequency-changeable compressor when running current is as outdoor unit start next time.

Further, in one embodiment of the invention, object run electric current is being repaiied according to electric current correction Just can also comprise the following steps after updating object run electric current i.e. step S6:

S7, it will be zeroed in the continuous working period.

It should be noted that in one embodiment of the invention, step S1 to step S6, or step S1 to step S7 It can be carried out with circulating repetition, therefore, in the step s 7, will be zeroed in the continuous working period can ensure in next working cycles The continuous working period of acquisition is zero-based, thereby may be ensured that the frequency-changeable compressor running frequency of the embodiment of the present invention The reliability of adjusting method.

To sum up, the adjusting method of the frequency-changeable compressor running frequency of the embodiment of the present invention can be in obstructed in convertible frequency air-conditioner During the heating mode of news, according to the continuous working period of the capacity of water of outdoor unit and frequency-changeable compressor, current operation frequency, most The parameters such as big running frequency intelligently automatically adjust the running frequency of frequency-changeable compressor, the ability of frequency-changeable compressor is sent out in time Wave, be rapidly reached design temperature.

The adjusting method of frequency-changeable compressor running frequency according to embodiments of the present invention, made detecting that convertible frequency air-conditioner is in During heat pattern, according to the running frequency of the object run current regulation frequency-changeable compressor of the frequency-changeable compressor of acquisition, and when judgement When continuous working period is more than or equal to the first preset time and current operation frequency and is more than or equal to predeterminated frequency, acquisition electric current Correction, and object run electric current is updated according to electric current correction, so as to realize automatically adjusting for frequency-changeable compressor running frequency. The adjusting method of the frequency-changeable compressor running frequency can pass through autonomous learning in the case that machine and outdoor unit do not communicate indoors To automatically adjust the running frequency of frequency-changeable compressor to reach and maintain design temperature, reduce control parameter transmitting procedure, can By property height.

The adjusting means of frequency-changeable compressor running frequency proposed according to embodiments of the present invention described with reference to the accompanying drawings 210。

As shown in figure 5, the adjusting means 210 for the frequency-changeable compressor running frequency that the embodiment of the present invention proposes includes:Heating Mode detection module 215, object run electric current acquisition module 216, running frequency adjustment module 217, the continuous working period and work as Preceding running frequency acquisition module 218, processing module 219 and object run electric current update module 220.Wherein, heating mode is examined Module 215 is surveyed to be used to detect whether convertible frequency air-conditioner is in heating mode.Object run electric current acquisition module 216 is used for when frequency conversion is empty Mediate when heating mode, obtain frequency-changeable compressor Mc object run electric current IAM0.Running frequency adjustment module 217 is used for root According to object run electric current IAM0Adjust frequency-changeable compressor Mc running frequency.Continuous working period and current operation frequency obtain mould Block 218 is used for continuous working period and the current operation frequency for obtaining frequency-changeable compressor Mc.Processing module 219 is used to judge to continue Whether run time is more than or equal to whether the first preset time such as E minutes and current operation frequency is more than or equal to default frequency Rate such as F hertz, and when the continuous working period is more than or equal in advance more than or equal to the first preset time and current operation frequency If during frequency, obtain the maximum frequency of operation Hzmax of frequency-changeable compressor Mc in the second preset time such as X minutes.Object run Electric current update module 220 is used to obtain electric current correction amount I according to maximum frequency of operation Hzmax, and according to electric current correction amount I To object run electric current IAM0It is modified to update object run electric current IAM0

Specifically, in convertible frequency air-conditioner initial start-up, object run electric current acquisition module 216 can be according to outdoor unit 2 Capacity of water sets frequency-changeable compressor Mc object run electric current IAM0For pre-set current value, such as the outdoor unit 2 of 3, if Put object run electric current IAM0For 10A and for the outdoor unit 2 of 4, object run electric current I is setAM0For 13A.Further, exist In one embodiment of the present of invention, when frequency-changeable compressor Mc is run, object run electric current acquisition module 216 can also be according to connecing The model selection control signal received obtains object run electric current IAM0

Further, in one embodiment of the invention, electric current correction amount I can be:

Δ I=A × Hzmax2+B×Hzmax+C

Wherein, Hzmax is maximum frequency of operation, and A, B and C are preset constant, and electric current correction amount I is more than or equal to zero Positive number.

Further, in one embodiment of the invention, object run electric current update module 220 can be according to following public affairs Formula renewal object run electric current IAM0

I’AM0=IAM0+ΔI

Wherein, IAM0For object run electric current, I 'AM0For the object run electric current after renewal.Because electric current correction amount I is Positive number more than or equal to zero, therefore the object run electric current I after renewalAM0More than the object run electric current I before renewalAM0.Need It is noted that the continuous working period is more than or equal to the first preset time and current operation frequency is more than or equal to predeterminated frequency Illustrate frequency-changeable compressor Mc object run electric current IAM0Too small, frequency-changeable compressor Mc is unable to reach design temperature requirement, therefore, Need increase frequency-changeable compressor Mc object run electric current IAM0

Further, in one embodiment of the invention, can be by the mesh after renewal when frequency-changeable compressor Mc is shut down Mark running current IAM0Frequency-changeable compressor Mc object run electric current I during as start next time of outdoor unit 2AM0

Further, in one embodiment of the invention, the adjusting means 210 of frequency-changeable compressor running frequency can be with Including the module 221 that is zeroed, zero module 221 is used to update object run electric current I in object run electric current update module 220AM0 Afterwards, will be zeroed in the continuous working period.It should be noted that in one embodiment of the invention, frequency-changeable compressor running frequency Adjusting means 210 being operated with circulating repetition, therefore, zero module 221 will be zeroed in the continuous working period and can protect Demonstrate,prove the acquired continuous working period in next working cycles of the adjusting means 210 of frequency-changeable compressor running frequency be from Zero beginning, it thereby may be ensured that the reliability of the adjusting means 210 of the frequency-changeable compressor running frequency of the embodiment of the present invention.

To sum up, the adjusting means 210 of the frequency-changeable compressor running frequency of the embodiment of the present invention can be in convertible frequency air-conditioner During the heating mode not communicated, according to the capacity of water of outdoor unit 2 and frequency-changeable compressor Mc continuous working period, current operation The parameters such as frequency, maximum frequency of operation Hzmax intelligently automatically adjust frequency-changeable compressor Mc running frequency, compress frequency conversion Machine Mc ability plays in time, is rapidly reached design temperature requirement.

The adjusting means of frequency-changeable compressor running frequency according to embodiments of the present invention, detected in heating mode detection module When being in heating mode to convertible frequency air-conditioner, frequency conversion pressure that running frequency adjustment module obtains according to object run electric current acquisition module The running frequency of the object run current regulation frequency-changeable compressor of contracting machine, and when processing module judge the continuous working period be more than or When being more than or equal to predeterminated frequency equal to the first preset time and current operation frequency, object run electric current update module is according to place The maximum frequency of operation that reason module obtains updates object run electric current to obtain electric current correction according to electric current correction, from And realize automatically adjusting for frequency-changeable compressor running frequency.The adjusting means of the frequency-changeable compressor running frequency being capable of machine indoors In the case of not communicated with outdoor unit, by autonomous learning come the running frequency of the frequency-changeable compressor of machine outside automatic regulation room with up to Design temperature is arrived and maintained, reduces control parameter transmitting procedure, simple in construction, cost is low, and reliability is high.

Any process or method described otherwise above description in flow chart or herein is construed as, and represents to include Module, fragment or the portion of the code of the executable instruction of one or more the step of being used to realize specific logical function or process Point, and the scope of the preferred embodiment of the present invention includes other realization, wherein can not press shown or discuss suitable Sequence, including according to involved function by it is basic simultaneously in the way of or in the opposite order, carry out perform function, this should be of the invention Embodiment person of ordinary skill in the field understood.

Expression or logic and/or step described otherwise above herein in flow charts, for example, being considered use In the order list for the executable instruction for realizing logic function, may be embodied in any computer-readable medium, for Instruction execution system, device or equipment (such as computer based system including the system of processor or other can be held from instruction The system of row system, device or equipment instruction fetch and execute instruction) use, or combine these instruction execution systems, device or set It is standby and use.For the purpose of this specification, " computer-readable medium " can any can be included, store, communicate, propagate or pass Defeated program is for instruction execution system, device or equipment or the dress used with reference to these instruction execution systems, device or equipment Put.The more specifically example (non-exhaustive list) of computer-readable medium includes following:Electricity with one or more wiring Connecting portion (electronic installation), portable computer diskette box (magnetic device), random access memory (RAM), read-only storage (ROM), erasable edit read-only storage (EPROM or flash memory), fiber device, and portable optic disk is read-only deposits Reservoir (CDROM).In addition, computer-readable medium, which can even is that, to print the paper of described program thereon or other are suitable Medium, because can then enter edlin, interpretation or if necessary with it for example by carrying out optical scanner to paper or other media His suitable method is handled electronically to obtain described program, is then stored in computer storage.

It should be appreciated that each several part of the present invention can be realized with hardware, software, firmware or combinations thereof.Above-mentioned In embodiment, software that multiple steps or method can be performed in memory and by suitable instruction execution system with storage Or firmware is realized.If, and in another embodiment, can be with well known in the art for example, realized with hardware Any one of row technology or their combination are realized:With the logic gates for realizing logic function to data-signal Discrete logic, have suitable combinational logic gate circuit application specific integrated circuit, programmable gate array (PGA), scene Programmable gate array (FPGA) etc..

Those skilled in the art are appreciated that to realize all or part of step that above-described embodiment method carries Suddenly it is that by program the hardware of correlation can be instructed to complete, described program can be stored in a kind of computer-readable storage medium In matter, the program upon execution, including one or a combination set of the step of embodiment of the method.

In addition, each functional unit in each embodiment of the present invention can be integrated in a processing module, can also That unit is individually physically present, can also two or more units be integrated in a module.Above-mentioned integrated mould Block can both be realized in the form of hardware, can also be realized in the form of software function module.The integrated module is such as Fruit is realized in the form of software function module and as independent production marketing or in use, can also be stored in a computer In read/write memory medium.

Storage medium mentioned above can be read-only storage, disk or CD etc..

In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not Necessarily refer to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be any One or more embodiments or example in combine in an appropriate manner.

Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding And modification, the scope of the present invention is by appended claims and its equivalent limits.

Claims (10)

1. a kind of adjusting method of frequency-changeable compressor running frequency, it is characterised in that comprise the following steps:
Whether detection convertible frequency air-conditioner is in heating mode;
When the convertible frequency air-conditioner is in heating mode, the object run electric current of the frequency-changeable compressor is obtained;
According to the running frequency of frequency-changeable compressor described in the object run current regulation;
Obtain continuous working period and the current operation frequency of the frequency-changeable compressor;
Judge whether the continuous working period is more than or equal to the first preset time and whether the current operation frequency is more than Or equal to predeterminated frequency, and when the continuous working period is more than or equal to first preset time and the current operation frequency When rate is more than or equal to the predeterminated frequency, the maximum frequency of operation of the frequency-changeable compressor in the second preset time is obtained;With And
Electric current correction is obtained according to the maximum frequency of operation, and according to the electric current correction to the object run electric current It is modified to update the object run electric current.
2. the method as described in claim 1, it is characterised in that it is described according to the electric current correction to the object run Electric current is modified further comprising the steps of after the object run electric current to update:
The continuous working period is zeroed.
3. the method as described in claim 1, it is characterised in that the electric current correction is:
Δ I=A × Hzmax2+B×Hzmax+C
Wherein, Hzmax is the maximum frequency of operation, and A, B and C are preset constant.
4. method as claimed in claim 3, it is characterised in that the object run electric current is updated according to below equation:
I’AM0=IAM0+ΔI
Wherein, IAM0For the object run electric current, I 'AM0For the object run electric current after renewal.
A kind of 5. adjusting means of frequency-changeable compressor running frequency, it is characterised in that including:
Heating mode detection module, for detecting whether convertible frequency air-conditioner is in heating mode;
Object run electric current acquisition module, for when the convertible frequency air-conditioner is in heating mode, obtaining the frequency-changeable compressor Object run electric current;
Running frequency adjustment module, the running frequency for the frequency-changeable compressor according to the object run current regulation;
Continuous working period and current operation frequency acquisition module, for obtain the frequency-changeable compressor continuous working period and Current operation frequency;
Processing module, for judging whether the continuous working period is more than or equal to the first preset time and the current operation Whether frequency is more than or equal to predeterminated frequency, and when the continuous working period is more than or equal to first preset time and institute When stating current operation frequency and being more than or equal to the predeterminated frequency, the maximum of the frequency-changeable compressor in the second preset time is obtained Running frequency;And
Object run electric current update module, for obtaining electric current correction according to the maximum frequency of operation, and according to the electricity Stream correction is modified to the object run electric current to update the object run electric current.
6. device as claimed in claim 5, it is characterised in that also include:
Be zeroed module, and the zero module is used to update the object run electric current in the object run electric current update module Afterwards, the continuous working period is zeroed.
7. device as claimed in claim 5, it is characterised in that the electric current correction is:
Δ I=A × Hzmax2+B×Hzmax+C
Wherein, Hzmax is the maximum frequency of operation, and A, B and C are preset constant.
8. device as claimed in claim 7, it is characterised in that the object run electric current update module according to below equation more The new object run electric current:
I’AM0=IAM0+ΔI
Wherein, IAM0For the object run electric current, I 'AM0For the object run electric current after renewal.
A kind of 9. frequency-conversion air-conditioning system, it is characterised in that including:
Signal sends terminal, and the signal sends terminal and is used to send control signal;
Frequency-changeable compressor;
Current detecting unit, the current detecting unit are connected with the frequency-changeable compressor, and the current detecting unit is used to examine Survey the current flow of the frequency-changeable compressor;And
Outdoor unit control unit, the outdoor unit control unit include the frequency conversion compression as any one of claim 5-8 The adjusting means and reception signal terminal of machine running frequency, wherein,
The reception signal terminal is used to receive the control signal;
The adjusting means of the frequency-changeable compressor running frequency and the reception signal terminal, the current detecting unit and described Frequency-changeable compressor is respectively connected with, and the adjusting means of the frequency-changeable compressor running frequency is used for according to the control signal and described Current flow adjusts the running frequency of the frequency-changeable compressor.
10. system as claimed in claim 9, it is characterised in that also single including indoor set control unit, the indoor set control Member is used to receive the control signal, and the control signal is sent to the reception signal terminal.
CN201410196966.7A 2014-05-09 2014-05-09 Adjusting method, device and the frequency-conversion air-conditioning system of frequency-changeable compressor running frequency CN105091196B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410196966.7A CN105091196B (en) 2014-05-09 2014-05-09 Adjusting method, device and the frequency-conversion air-conditioning system of frequency-changeable compressor running frequency

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201410196966.7A CN105091196B (en) 2014-05-09 2014-05-09 Adjusting method, device and the frequency-conversion air-conditioning system of frequency-changeable compressor running frequency
US14/670,974 US10197320B2 (en) 2014-05-09 2015-03-27 Method and apparatus for adjusting operating frequency of inverter compressor

Publications (2)

Publication Number Publication Date
CN105091196A CN105091196A (en) 2015-11-25
CN105091196B true CN105091196B (en) 2018-04-03

Family

ID=54572192

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410196966.7A CN105091196B (en) 2014-05-09 2014-05-09 Adjusting method, device and the frequency-conversion air-conditioning system of frequency-changeable compressor running frequency

Country Status (1)

Country Link
CN (1) CN105091196B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107091516B (en) * 2017-06-08 2019-10-08 广东美的暖通设备有限公司 Current control method, current control system and air conditioner
CN108361183B (en) * 2018-02-11 2019-07-26 四川虹美智能科技有限公司 A kind of current protection control method and device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4810943A (en) * 1985-08-07 1989-03-07 Hitachi, Ltd. Method and apparatus for controlling air-conditioning apparatus
CN1084627A (en) * 1992-06-17 1994-03-30 大金工业株式会社 The operation controller of aircondition
CN1427212A (en) * 2001-12-17 2003-07-02 乐金电子(天津)电器有限公司 Power saving control method of 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

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0260942B2 (en) * 1982-05-31 1990-12-18 Tokyo Shibaura Electric Co
JPS6298141A (en) * 1985-10-24 1987-05-07 Matsushita Electric Ind Co Ltd Operating frequency control device for air-conditioning machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4810943A (en) * 1985-08-07 1989-03-07 Hitachi, Ltd. Method and apparatus for controlling air-conditioning apparatus
CN1084627A (en) * 1992-06-17 1994-03-30 大金工业株式会社 The operation controller of aircondition
CN1427212A (en) * 2001-12-17 2003-07-02 乐金电子(天津)电器有限公司 Power saving control method of 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

Also Published As

Publication number Publication date
CN105091196A (en) 2015-11-25

Similar Documents

Publication Publication Date Title
US20200083708A1 (en) Controllable Electrical Outlet with a Controlled Wired Output
TWI584552B (en) Thermostat battery recharging
US8994539B2 (en) Alarm and diagnostics system and method for a distributed-architecture heating, ventilation and air conditioning network
US8761945B2 (en) Device commissioning in a heating, ventilation and air conditioning network
US8433446B2 (en) Alarm and diagnostics system and method for a distributed-architecture heating, ventilation and air conditioning network
US8463442B2 (en) Alarm and diagnostics system and method for a distributed architecture heating, ventilation and air conditioning network
US6332327B1 (en) Distributed intelligence control for commercial refrigeration
US8725298B2 (en) Alarm and diagnostics system and method for a distributed architecture heating, ventilation and conditioning network
US20150185752A1 (en) Wireless Load Control System
US4942613A (en) Service thermostat
US7562536B2 (en) Method and apparatus to sense and control compressor operation in an HVAC system
AU2007200788B2 (en) Variable speed control
US9377768B2 (en) Memory recovery scheme and data structure in a heating, ventilation and air conditioning network
US8008603B2 (en) Boiler protection apparatus and method
CN104807129B (en) The control method of air conditioner
US8255086B2 (en) System recovery in a heating, ventilation and air conditioning network
KR20140114089A (en) Horticultural facility monitoring and control system and method
CN105509266A (en) Intelligent control system of air conditioner
CN103292389B (en) Air conditioner as well as outdoor unit and temperature controller thereof and control method of air conditioner
US20100298982A1 (en) Outdoor fan and indoor blower controller for heating, ventilation and air conditioning system and method of operation thereof
US20100106312A1 (en) Alarm and diagnostics system and method for a distributed-architecture heating, ventilation and air conditioning network
US8437877B2 (en) System recovery in a heating, ventilation and air conditioning network
KR20120089654A (en) Method and apparatus for efficiently coordinating data center cooling units
EP3110075B1 (en) Method and apparatus for monitoring status of terminal compressor
CN205079400U (en) Environmental monitoring alarm system of general computer lab

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
GR01 Patent grant
GR01 Patent grant