阅读说明：本技术 空调器的控制方法及系统、空调器和计算机可读存储介质 (The control method and system of air conditioner, air conditioner and computer readable storage medium ) 是由 刘雅岚 王永 梁涛 李镇杉 杨志华 于 2019-09-10 设计创作，主要内容包括：本发明提供了一种空调器的控制方法及系统、空调器和计算机可读存储介质,其中,空调器的控制方法,包括确定空调器的压缩机的制冷量的变化率,并确定压缩机的喘振频率；根据变化率和/或喘振频率控制压缩机的导叶开度及运行频率。通过确定压缩机的喘振频率,在控制压缩机的运行频率时,可主动避免运行频率低于喘振频率的情况,进而避免了压缩机出现“喘振”问题的情况,提高了压缩机的运行可靠性和稳定性。同时,基于制冷量的变化率对应调整压缩机的运行频率和导叶的开度,可以在保证空调器机组制冷量要求的前提下,降低压缩机的能耗,进而提高了空调器的运行能效比,实现了在不影响制冷效果的前提下节约能源。(The present invention provides a kind of control method of air conditioner and systems, air conditioner and computer readable storage medium, wherein the control method of air conditioner, the change rate of the refrigerating capacity of the compressor including determining air conditioner, and determine the surge frequency of compressor；According to the guide vane opening and running frequency of change rate and/or surge frequency control compressor.By determining the surge frequency of compressor, when controlling the running frequency of compressor, the case where running frequency is lower than surge frequency can be actively avoided, and then avoids compressor and the case where " surge " problem occurs, improves the operational reliability and stability of compressor.Simultaneously, change rate based on refrigerating capacity corresponds to the running frequency of adjustment compressor and leads leaf divergence, it can be under the premise of guaranteeing that air conditioner unit refrigerating capacity requires, reduce the energy consumption of compressor, and then the operational energy efficiency ratio of air conditioner is improved, it realizes energy saving under the premise of not influencing refrigeration effect.)

1. a kind of control method of air conditioner characterized by comprising

It determines the change rate of the refrigerating capacity of the compressor of the air conditioner, and determines the surge frequency of the compressor；

The guide vane opening and running frequency of the compressor are controlled according to the change rate and/or the surge frequency.

2. the control method of air conditioner according to claim 1, which is characterized in that the working condition based on the compressor In the case where for unloaded state, the guide vane for controlling the compressor according to the change rate and/or the surge frequency is opened It the step of degree and running frequency, specifically includes:

Controlling the compressor reduces the running frequency, until the running frequency is equal to the surge frequency；

In the case where being equal to the surge frequency based on the running frequency, controls the compressor and reduce the guide vane opening.

3. according to the control method for the air conditioner that claim 2 is stated, which is characterized in that described according to the change rate and/or institute State surge frequency control the compressor guide vane opening and the compressor running frequency the step of, further includes:

Risen based on the surge frequency, and the change rate controls the pressure less than or equal in the case where change rate threshold value Contracting machine stops reducing the running frequency and stops reducing the guide vane opening, so that the compressor exits the unloading shape State.

4. the control method of air conditioner according to claim 1, which is characterized in that the working condition based on the compressor In the case where for stress state, the guide vane for controlling the compressor according to the change rate and/or the surge frequency is opened It the step of degree and running frequency, specifically includes:

Period obtains the guide vane opening；

Based on the guide vane opening less than 100%, the change rate of the refrigerating capacity is greater than change rate threshold value, and the running frequency In the case where greater than the surge frequency, controlling the working frequency reduces target frequency value, and controls the guide vane opening pair Target aperture should be increased.

5. the control method of air conditioner according to claim 4, which is characterized in that it is described according to the change rate and/or The surge frequency control the compressor guide vane opening and the compressor running frequency the step of, further includes:

In the case where being equal to 100% based on the guide vane opening, controls the compressor and increase the running frequency.

6. the control method of air conditioner according to claim 1, which is characterized in that the operating status based on the compressor In the case where for stable state, the guide vane for controlling the compressor according to the change rate and/or the surge frequency is opened It the step of degree and running frequency, specifically includes:

Period obtains the target operation area temperature and the guide vane opening of the air conditioner；

Based on the guide vane opening less than 100%, target operation area temperature is lower than temperature threshold, and the running frequency is big In the case where the surge frequency, controlling the working frequency reduces target frequency, and controls the guide vane opening and increase mesh Mark aperture.

7. the control method of air conditioner according to any one of claim 1 to 6, which is characterized in that be based on the air-conditioning In the case that device is constant flow air conditioner, the step of the change rate of the refrigerating capacity of the compressor of the determination air conditioner, tool Body includes:

Period obtains the inlet water temperature and output water temperature of the air conditioner；

The temperature difference of the inlet water temperature and the output water temperature is calculated, and determines the change rate of the temperature difference；

The change rate of the refrigerating capacity of the compressor is determined according to the change rate of the temperature difference.

8. the control method of air conditioner according to any one of claim 1 to 6, which is characterized in that be based on the air-conditioning In the case that device is variable-flow air conditioner, the step of the change rate of the refrigerating capacity of the compressor of the determination air conditioner, tool Body includes:

Period obtains the frequency of the water pump of the air conditioner, and determines the change rate of the frequency of the water pump；

The change rate of the refrigerating capacity of the compressor is determined according to the change rate of the frequency of the water pump.

9. a kind of control system of air conditioner characterized by comprising

Memory is configured as being suitable for storage computer program；

Processor is configured as being adapted for carrying out the computer program to realize such as sky described in any item of the claim 1 to 8 Adjust the control method of device.

10. a kind of air conditioner characterized by comprising

The control system of air conditioner as claimed in claim 9.

11. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program The control method such as air conditioner described in any item of the claim 1 to 8 is realized when being executed by processor.

Technical field

The present invention relates to air conditioner controlling technology fields, control method, a kind of air-conditioning in particular to a kind of air conditioner The control system of device, a kind of air conditioner and a kind of computer readable storage medium.

Background technique

In the related art, conventional air-conditioning device unit realizes energy conservation by reducing compressor frequency, and centrifugation is pressed Contracting machine, if compressor frequency is lower than surge frequency, will lead to " surge " problem, Jin Erying when reducing the frequency of compressor Ring the normal operation of unit.

Summary of the invention

The present invention is directed to solve at least one of the technical problems existing in the prior art or related technologies.

For this purpose, the first aspect of the present invention proposes a kind of control method of air conditioner.

The second aspect of the present invention proposes a kind of control system of air conditioner.

The third aspect of the present invention proposes a kind of air conditioner.

The fourth aspect of the present invention proposes a kind of computer readable storage medium.

In view of this, the first aspect of the present invention provides a kind of control method of air conditioner, comprising: determine air conditioner The change rate of the refrigerating capacity of compressor, and determine the surge frequency of compressor；According to change rate and/or the control compression of surge frequency The guide vane opening and running frequency of machine.

In the technical scheme, when controlling the guide vane opening and running frequency of cooler compressor, compressor is determined The change rate of refrigerating capacity and the surge frequency of compressor, according to the guide vane of the change rate of refrigerating capacity and surge frequency control compressor Aperture and running frequency.

Specifically, it by determining the surge frequency of compressor, when controlling the running frequency of compressor, can actively avoid transporting Line frequency is lower than the case where surge frequency, and then avoids compressor and the case where " surge " problem occur, improves compressor Operational reliability and stability.Meanwhile the corresponding adjustment running frequency of compressor of change rate and opening for guide vane based on refrigerating capacity Degree can reduce the energy consumption of compressor, and then improve air conditioner under the premise of guaranteeing that air conditioner unit refrigerating capacity requires Operational energy efficiency ratio realizes energy saving under the premise of not influencing refrigeration effect.

In addition, the control method of the air conditioner in above-mentioned technical proposal provided by the invention can also have additional skill as follows Art feature:

In the above-mentioned technical solutions, further, in the case that the working condition based on compressor is unloaded state, according to It the step of guide vane opening and running frequency of change rate and/or surge frequency control compressor, specifically includes: control compressor drop Low running frequency, until running frequency is equal to surge frequency；In the case where being equal to surge frequency based on running frequency, control compression Machine reduces guide vane opening.

In the technical scheme, if the working condition of compressor is unloaded state, i.e. user side refrigeration capacity requirement reduces When, need to reduce the refrigerating capacity of compressor, specifically, the preferential running frequency for reducing compressor, while guaranteeing running frequency not The surge frequency of compressor can be lower than, to guarantee to be not in surge phenomenon.Reach surge frequency in the running frequency of compressor Afterwards, guide vane opening is further decreased, to further decrease the refrigerating capacity of compressor, so that the refrigerating capacity and user demand of air conditioner It is consistent.

In any of the above-described technical solution, further, according to change rate and/or the guide vane of surge frequency control compressor The step of aperture and the running frequency of compressor, further includes: risen based on surge frequency, and change rate is less than or equal to change rate In the case where threshold value, control compressor stops reducing running frequency and stops reducing guide vane opening, so that compressor exits unloading State.

In the technical scheme, since surge frequency is related to the pressure ratio of compressor, cold medium flux, wherein pressure ratio and system Load, water temperature, flow, rotation speed of fan and guide vane opening are related, therefore in the process for adjusting compressor frequency and guide vane opening In, surge frequency may rise with it, and after surge frequency rises, compressor current can increase with it, and cause unit energy Enough increase considerably.

Therefore, if there is surge frequency rise the case where, execute further relatively compressor refrigerating capacity change rate with The step of preset change rate threshold value, if the change rate of refrigerating capacity is less than or equal to pre- in the case where surge frequency rises If change rate threshold value, then units consumption increase may be instead resulted in by illustrating to continue unloading, stop reducing running frequency at this time With the operation for reducing guide vane opening, power consumption increases caused by control compressor exits unloaded state to avoid rising because of current value.

In any of the above-described technical solution, further, in the case that the working condition based on compressor is stress state, The step of according to the guide vane opening and running frequency of change rate and/or surge frequency control compressor, specifically include: the period obtains Guide vane opening；Based on guide vane opening less than 100%, the change rate of refrigerating capacity is greater than change rate threshold value, and running frequency is greater than asthma In the case where vibration frequency, control working frequency reduces target frequency value, and controls the corresponding increase target aperture of guide vane opening.

In the technical scheme, if the working condition of compressor is stress state, i.e. user side refrigeration capacity requirement increases When, need to increase the refrigerating capacity of compressor.Specifically, can be by increase compressor frequency when increasing refrigerating capacity, or increase and lead Leaf aperture.And in order to guarantee loss-rate, energy consumption is reduced, if guide vane opening, less than 100%, and the change rate of refrigerating capacity is greater than and becomes Rate threshold value, and running frequency is greater than surge frequency, then the working frequency that can control compressor reduces, and specially reduces every time Preset target frequency value, while controlling guide vane opening and increasing target aperture to improve refrigerating capacity.

Wherein, guide vane opening is less than 100%, then explanation can improve refrigerating capacity by increasing guide vane opening.Refrigerating capacity Change rate is greater than preset change rate threshold value, then it is not in be unable to satisfy user that explanation, which is currently able to effectively increase refrigerating capacity, The case where side refrigeration capacity requirement.Running frequency is greater than surge frequency, then the appropriate running frequency that reduces of explanation not will cause that " surge is existing As ".When meeting guide vane opening less than 100%, and the change rate of refrigerating capacity is greater than change rate threshold value, and running frequency is greater than surge When frequency, the running frequency for reducing compressor can meet user side refrigeration capacity requirement in the operational effect for guaranteeing air conditioner, guarantee Under the premise of, reduce the energy consumption of air conditioner.

In any of the above-described technical solution, further, according to change rate and/or the guide vane of surge frequency control compressor The step of aperture and the running frequency of compressor, further includes: in the case where being equal to 100% based on guide vane opening, control compressor Increase running frequency.

In the technical scheme, when guide vane opening reaches 100%, illustrate that system can not be increased by improving guide vane opening Cooling capacity should increase the running frequency of compressor at this time to meet user side refrigeration capacity requirement to increase the refrigerating capacity of air conditioner Output.

In any of the above-described technical solution, further, in the case that the operating status based on compressor is stable state, The step of according to the guide vane opening and running frequency of change rate and/or surge frequency control compressor, specifically include: the period obtains The target operation area temperature and guide vane opening of air conditioner；Based on guide vane opening less than 100%, target operation area temperature is lower than temperature Threshold value, and running frequency, greater than in the case where surge frequency, control working frequency reduces target frequency, and controls guide vane opening increasing Add target aperture.

In the technical scheme, if the operating status of compressor is stable state, i.e. user side refrigeration capacity requirement does not have When significant change, according to target operation area temperature and guide vane opening judge whether can by reduce compressor running frequency come Execute energy conservation.

Specifically, if guide vane opening is less than 100%, illustrate that compressor operation frequency can be made up by increasing guide vane opening Refrigerating capacity caused by rate reduces declines.Target operation area temperature, that is, user side room temperature of air conditioner, temperature threshold is stable state Corresponding threshold value, if target operation area temperature is higher than temperature threshold, compressor will be disengaged from stable state, into load shape State.And if target operation area temperature is lower than temperature threshold, illustrate current compressor without departing from stable state.Work as air conditioner Compressor stable operation in stable state, and when guide vane opening is less than 100%, the running frequency for reducing compressor can effectively drop Low energy consumption of compressor, until the running frequency for stopping reducing compressor is when the running frequency of compressor is equal to surge frequency to keep away Exempt from " surge " occur.

In any of the above-described technical solution, further, in the case where being constant flow air conditioner based on air conditioner, determine empty The step of adjusting the change rate of the refrigerating capacity of the compressor of device, specifically includes: the period obtains the inlet water temperature and water outlet water of air conditioner Temperature；The temperature difference of inlet water temperature and output water temperature is calculated, and determines the change rate of the temperature difference；Compressor is determined according to the change rate of the temperature difference Refrigerating capacity change rate.

In the technical scheme, for air conditioner be constant flow air conditioner the case where, the water flow of air conditioner is fixed, air-conditioning The refrigerating capacity and inlet water temperature of device compressor and the temperature difference of output water temperature are positively correlated.Accordingly, it is determined that inlet water temperature and output water temperature Between the temperature difference change rate, that is, can determine the change rate of compressor refrigerating capacity.

In any of the above-described technical solution, further, in the case where being variable-flow air conditioner based on air conditioner, determine empty The step of adjusting the change rate of the refrigerating capacity of the compressor of device, specifically includes: the period obtains the frequency of the water pump of air conditioner, and determines The change rate of the frequency of water pump；The change rate of the refrigerating capacity of compressor is determined according to the change rate of the frequency of water pump.

In the technical scheme, for air conditioner be variable-flow air conditioner the case where, the water flow of air conditioner is not fixed, because This simply can not determine refrigerating capacity according to the water temperature temperature difference.In this case, the variation of water pump frequency can side reaction user side The variation of refrigeration capacity requirement, and according to system work-based logic, the refrigerating capacity and user side refrigeration capacity requirement of compressor are positively correlated, because This can determine the change rate of compressor refrigerating capacity according to the change rate of water pump frequency.

Second aspect of the present invention provides a kind of control system of air conditioner, including memory and processor.Memory quilt It is configured and adapted to store computer program；Processor is configured as being adapted for carrying out computer program to realize such as any of the above-described technology The control method of the air conditioner provided in scheme, therefore, the control system of the air conditioner include as in any of the above-described technical solution Whole beneficial effects of the control method of the air conditioner of offer, details are not described herein.

Third aspect present invention provides a kind of air conditioner, which includes as provided in any of the above-described technical solution The control system of air conditioner, therefore, the air conditioner include the control system of the air conditioner as provided in any of the above-described technical solution Whole beneficial effects, details are not described herein.

Fourth aspect present invention provides a kind of computer readable storage medium, is stored thereon with computer program, calculates The control method of the air conditioner as provided in any of the above-described technical solution, therefore, the meter are realized when machine program is executed by processor Calculation machine readable storage medium storing program for executing includes whole beneficial effects of the control method of the air conditioner as provided in any of the above-described technical solution, Details are not described herein.

Detailed description of the invention

Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures Obviously and it is readily appreciated that, in which:

Fig. 1 shows the flow chart of the control method of air conditioner according to an embodiment of the invention；

Fig. 2 shows the flow charts of the control method of air conditioner according to another embodiment of the invention；

The parameter trend that Fig. 3 shows compressor in the control method of air conditioner according to an embodiment of the invention shows It is intended to；

Fig. 4 shows the flow chart of the control method of air conditioner according to still another embodiment of the invention；

Fig. 5 shows the flow chart of the control method of the air conditioner of still another embodiment in accordance with the present invention；

Fig. 6 shows the flow chart of the control method of the air conditioner of still another embodiment in accordance with the present invention；

Fig. 7 shows the flow chart of the control method of the air conditioner of still another embodiment in accordance with the present invention；

Fig. 8 shows the control logic of unloaded state in the control method of air conditioner according to an embodiment of the invention Schematic diagram；

Fig. 9 shows the control logic of stress state in the control method of air conditioner according to an embodiment of the invention Schematic diagram；

The control that Figure 10 shows stable state in the control method of air conditioner according to an embodiment of the invention is patrolled Collect schematic diagram；

Figure 11 shows the structural block diagram of the control system of air conditioner according to an embodiment of the invention.

Specific embodiment

To better understand the objects, features and advantages of the present invention, with reference to the accompanying drawing and specific real Applying mode, the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application Feature in example and embodiment can be combined with each other.

In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, still, the present invention may be used also To be implemented using other than the one described here other modes, therefore, protection scope of the present invention is not by described below Specific embodiment limitation.

Control method, the air conditioner of the air conditioner described according to some embodiments of the invention are described referring to Fig. 1 to Figure 11 Control system, air conditioner and computer readable storage medium.