CN105402848B - Positive displacement compressor system control method and control device - Google Patents
Positive displacement compressor system control method and control device Download PDFInfo
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- CN105402848B CN105402848B CN201510856587.0A CN201510856587A CN105402848B CN 105402848 B CN105402848 B CN 105402848B CN 201510856587 A CN201510856587 A CN 201510856587A CN 105402848 B CN105402848 B CN 105402848B
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- temperature
- positive displacement
- displacement compressor
- compressor system
- frequency
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
Abstract
The present invention provides a kind of positive displacement compressor system control method and control devices.Positive displacement compressor system control method according to the present invention includes: step S1: detection indoor environment temperature T, and records initial indoor environment temperature T0, and three cylinders of control positive displacement compressor system operate in first frequency；Step S2: calculating indoor environment temperature T-phase to the temperature change value of initial indoor environment temperature T0 and the temperature gap of indoor environment temperature T and target temperature, and the operation cylinder number and running frequency of positive displacement compressor system are reduced according to temperature change value and temperature gap.The present invention is at the beginning of starting, three cylinders of control positive displacement compressor system operate in high frequency, indoor environment temperature can quickly be changed, when temperature change value or room temperature distance objective temperature reach certain value, the operation cylinder number and running frequency of positive displacement compressor system are reduced in time, three cylinder high frequencies operation always is avoided, to keep the operation of positive displacement compressor system more energy efficient.
Description
Technical field
The present invention relates to compressor assembly control fields, in particular to a kind of positive displacement compressor system control method
And control device.
Background technique
At present because energy and environmental problem is more and more prominent, the north heating using collective heat, can burn a large amount of coal or
The low-grade energies such as person's natural gas, exacerbate atmosphere pollution and energy consumption.If, can be significantly using air source heat pump heat supply
Alleviate problem above.But since northern winter temperature is very low, ordinary hot heat pump heating amount and efficiency are substantially reduced, and seriously affect heat
The application of pump.Based on the above reasons, positive displacement compressor comes into being.According to different operating condition loads by adjusting different compressors appearance
Product ratio, to reach the requirement of different heating capacities.
Positive displacement compressor is divided into two cylinder single stage compress or three cylinder Two-stage Compressions at present.When three cylinders are run, discharge capacity is big, ability is high
Same power is also very high, so needing to be controlled for three cylinder actual motion energy conservations, to be able to satisfy the demand of ability
It is able to satisfy the few effect of electricity consumption.
Summary of the invention
The present invention is intended to provide a kind of more energy efficient positive displacement compressor system control method and control device.
The present invention provides a kind of positive displacement compressor system control method, method includes: step S1: detection indoor environment temperature
T is spent, and records initial indoor environment temperature T0, three cylinders of control positive displacement compressor system operate in first frequency；Step S2: meter
Indoor environment temperature T-phase is calculated to the temperature change value and indoor environment temperature T of initial indoor environment temperature T0 and target temperature
Temperature gap, and according to the operation cylinder number and running frequency of temperature change value and temperature gap reduction positive displacement compressor system.
Further, step S2 includes: to control positive displacement compressor system when temperature change value is greater than the first preset value
Running frequency is reduced to second frequency by first frequency；Alternatively, controlling positive displacement compressor when temperature gap is less than the second preset value
System is switched to twin-tub operation, and running frequency is gradually lowered to third frequency by second frequency and runs.
Further, the first preset value is 2 DEG C to 4 DEG C, and the second preset value is 1 DEG C to 2 DEG C.
Further, this method further includes before step S1, detecting the operating mode of positive displacement compressor system.
The present invention also provides a kind of positive displacement compressor system control devices, and device includes: initial control module, for examining
Indoor environment temperature T is surveyed, and records initial indoor environment temperature T0, three cylinders of control positive displacement compressor system operate in the first frequency
Rate；Control module is adjusted, for calculating temperature change value and interior of the indoor environment temperature T-phase to initial indoor environment temperature T0
The temperature gap of environment temperature T and target temperature, and positive displacement compressor system is reduced according to temperature change value and temperature gap
Run cylinder number and running frequency.
Further, adjusting control module includes: first control unit, for being greater than the first preset value when temperature change value
When, the running frequency of control positive displacement compressor system is reduced to second frequency by first frequency；Second control unit, for working as temperature
When difference is less than the second preset value, control positive displacement compressor system be switched to twin-tub operation, running frequency by second frequency by
Gradually it is reduced to the operation of third frequency.
Further, the first preset value is 2 DEG C to 4 DEG C, and the second preset value is 1 DEG C to 2 DEG C.
Further, control device further includes mode detection module, for detecting the operating mode of positive displacement compressor system.
Positive displacement compressor system control method and control device according to the present invention, at the beginning of starting, control transfiguration compression
Three cylinders of machine system operate in high frequency, can quickly change indoor environment temperature, when temperature change value or room temperature distance
When target temperature reaches certain value, the operation cylinder number and running frequency of positive displacement compressor system are reduced in time, avoids three cylinder always
High frequency operation, to keep the operation of positive displacement compressor system more energy efficient.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the schematic illustration of positive displacement compressor system control method according to the present invention；
Specific embodiment
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figure 1, positive displacement compressor system control method according to the present invention, this method comprises: step S1: sensing chamber
Interior environment temperature T, and initial indoor environment temperature T0 is recorded, three cylinders of control positive displacement compressor system operate in first frequency；
Step S2: indoor environment temperature T-phase is calculated to the temperature change value and indoor environment temperature T and mesh of initial indoor environment temperature T0
The temperature gap of temperature is marked, and reduces operation cylinder number and the operation of positive displacement compressor system according to temperature change value and temperature gap
Frequency.The present invention can quickly change interior by the way that at the beginning of starting, three cylinders of control positive displacement compressor system operate in high frequency
Environment temperature reduces positive displacement compressor when temperature change value or room temperature distance objective temperature reach certain value in time
The operation cylinder number and running frequency of system avoid three cylinder high frequencies operation always, to keep the operation of positive displacement compressor system more energy efficient.
Preferably, step S2 includes: to control the fortune of positive displacement compressor system when temperature change value is greater than the first preset value
Line frequency is reduced to second frequency by first frequency；I.e. after temperature change value reaches certain value, positive displacement compressor system is reduced
Running frequency, reduce temperature fall off rate, reduce energy consumption.When temperature gap is less than the second preset value, control transfiguration compression
Machine system is switched to twin-tub operation, and running frequency is gradually lowered to third frequency by second frequency and runs, namely when indoor ring
When border temperature soon reaches target temperature, running frequency and cylinder number are reduced, so that indoor environment temperature is maintained mesh using low-power
Temperature attachment is marked, can be effectively reduced energy consumption.Generally, the first preset value is 2 DEG C to 4 DEG C, and the second preset value is 1 DEG C to 2 DEG C.
Specifically, carry out the positive displacement compressor system control method that the present invention will be described in detail in conjunction with Fig. 1:
At the beginning of starting, the operating mode of positive displacement compressor system is detected, when operating mode is refrigerating operaton, especially
Under worst hot case: 1, most starting the operation of three cylinders, running frequency can be realized fast-refrigerating in high frequency；2, work as indoor environment temperature
2-4 DEG C or so is reduced, running frequency is changed to intermediate frequency operation, and refrigerating capacity declines, but under can guarantee that indoor environment temperature continues
Drop (decrease speed is opposite to slow down)；3, when 1-2 DEG C or so from user's set temperature difference of indoor environment temperature, it is switched to twin-tub fortune
Row, running frequency are gradually lowered to low-frequency operation by intermediate frequency, it is attached to can effectively ensure that indoor environment temperature maintains target temperature
Closely, energy consumption can be also effectively reduced.
When operating mode is heating operation, when special under ultralow-temperature operation conditions: 1, most starting the operation of three cylinders, running frequency is run
High frequency can be realized quick heating；2, when indoor environment temperature increases 2-4 DEG C or so, running frequency is changed to intermediate frequency operation, heating
Ability can decrease, but can still guarantee that indoor environment temperature rises (rate of climb is opposite to slow down) with certain speed；
3, when indoor environment temperature from user's set temperature differ 1-2 DEG C or so, be switched to twin-tub operation, running frequency by intermediate frequency gradually
It is reduced to low-frequency operation, can effectively ensure that indoor environment temperature up to maintaining near target temperature, can be also effectively reduced
Energy consumption.
The present invention also provides a kind of positive displacement compressor system control device, which includes: initial control module, is used for
Indoor environment temperature T is detected, and records initial indoor environment temperature T0, three cylinders of control positive displacement compressor system operate in first
Frequency；Control module is adjusted, for calculating temperature change value and room of the indoor environment temperature T-phase to initial indoor environment temperature T0
The temperature gap of interior environment temperature T and target temperature, and positive displacement compressor system is reduced according to temperature change value and temperature gap
Operation cylinder number and running frequency.
For the present invention through initial control module at the beginning of starting, three cylinders of control positive displacement compressor system operate in high frequency,
Indoor environment temperature can quickly be changed, when temperature change value or room temperature distance objective temperature reach certain value, adjusted
Section control module can reduce the operation cylinder number and running frequency of positive displacement compressor system in time, avoid three cylinder high frequencies fortune always
Row, to keep the operation of positive displacement compressor system more energy efficient.
Specifically, adjusting control module includes first control unit, is used for when temperature change value is greater than the first preset value,
Control positive displacement compressor system running frequency second frequency is reduced to by first frequency, i.e., when temperature change value reach certain value it
Afterwards, the running frequency of positive displacement compressor system is reduced, temperature fall off rate is reduced, reduces energy consumption.Adjusting control module further includes
Second control unit, for when temperature gap is less than the second preset value, control positive displacement compressor system to be switched to twin-tub fortune
Row, running frequency are gradually lowered to third frequency by second frequency and run.Namely when indoor environment temperature soon reaches target temperature
When spending, running frequency and cylinder number are reduced, so that indoor environment temperature is maintained target temperature attachment using low-power, can effectively drop
Low energy consumption.In control device, the setting of design parameter is corresponding with control method, is not repeating.
It can be seen from the above description that the above embodiments of the present invention realized the following chievements:
Positive displacement compressor system control method and control device according to the present invention, at the beginning of starting, control transfiguration compression
Three cylinders of machine system operate in high frequency, can quickly change indoor environment temperature, when temperature change value or room temperature distance
When target temperature reaches certain value, the operation cylinder number and running frequency of positive displacement compressor system are reduced in time, avoids three cylinder always
High frequency operation, to keep the operation of positive displacement compressor system more energy efficient.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of positive displacement compressor system control method, which is characterized in that the described method includes:
Step S1: detection indoor environment temperature T, and initial indoor environment temperature T0 is recorded, control the positive displacement compressor system
Three cylinders operate in first frequency；
Step S2: indoor environment temperature T-phase is calculated to the temperature change value and indoor environment of the initial indoor environment temperature T0
The temperature gap of temperature T and target temperature, and the transfiguration is reduced according to the temperature change value and the temperature gap and is compressed
The operation cylinder number and running frequency of machine system；
The step S2 includes: to control the positive displacement compressor system when the temperature change value is greater than the first preset value
Running frequency is reduced to second frequency by first frequency；Alternatively, controlling the change when the temperature gap is less than the second preset value
Positive displacement compressor system is switched to twin-tub operation, and running frequency is gradually lowered to third frequency by second frequency and runs.
2. positive displacement compressor system control method according to claim 1, which is characterized in that
First preset value is 2 DEG C to 4 DEG C, and second preset value is 1 DEG C to 2 DEG C.
3. positive displacement compressor system control method according to any one of claim 1 to 2, which is characterized in that the side
Method further includes, and before step S1, detects the operating mode of the positive displacement compressor system.
4. a kind of positive displacement compressor system control device, which is characterized in that described device includes:
Initial control module for detecting indoor environment temperature T, and records initial indoor environment temperature T0, controls the transfiguration
Three cylinders of compressor assembly operate in first frequency；
Control module is adjusted, for calculating indoor environment temperature T-phase to the temperature change value of the initial indoor environment temperature T0
With the temperature gap of indoor environment temperature T and target temperature, and institute is reduced according to the temperature change value and the temperature gap
State the operation cylinder number and running frequency of positive displacement compressor system；
The adjusting control module includes:
First control unit, for controlling the positive displacement compressor system when the temperature change value is greater than the first preset value
Running frequency second frequency is reduced to by first frequency；
Second control unit, for controlling the positive displacement compressor system when the temperature gap is less than the second preset value
It is switched to twin-tub operation, running frequency is gradually lowered to third frequency by second frequency and runs.
5. positive displacement compressor system control device according to claim 4, which is characterized in that
First preset value is 2 DEG C to 4 DEG C, and second preset value is 1 DEG C to 2 DEG C.
6. the positive displacement compressor system control device according to any one of claim 4 to 5, which is characterized in that the control
Device processed further includes mode detection module, for detecting the operating mode of the positive displacement compressor system.
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| CN201510856587.0A CN105402848B (en) | 2015-11-27 | 2015-11-27 | Positive displacement compressor system control method and control device |
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| CN201510856587.0A CN105402848B (en) | 2015-11-27 | 2015-11-27 | Positive displacement compressor system control method and control device |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105928142B (en) * | 2016-04-29 | 2019-07-23 | 青岛海尔空调器有限总公司 | Air conditioner temprature control method |
| CN106885348B (en) * | 2017-04-13 | 2020-08-25 | 青岛海尔空调器有限总公司 | Air conditioner and control method |
| CN109539648A (en) * | 2018-11-02 | 2019-03-29 | 珠海格力电器股份有限公司 | A kind of compressor of refrigeration equipment adds Unloading Control method and server |
| CN110779248B (en) * | 2019-10-12 | 2020-11-13 | 珠海格力电器股份有限公司 | Compressor control method, controller and air conditioning unit |
| CN111219880B (en) * | 2019-12-02 | 2020-12-18 | 珠海格力电器股份有限公司 | Three-cylinder compressor mode switching method and device |
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| JP2009299914A (en) * | 2008-06-10 | 2009-12-24 | Panasonic Corp | Multiroom air conditioner |
| CN103245031A (en) * | 2012-02-06 | 2013-08-14 | 珠海格力电器股份有限公司 | Air conditioner and control method and device thereof |
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Effective date of registration: 20190419 Address after: No. six, Qianshan Jinji West Road, Zhuhai, Guangdong Province Co-patentee after: Zhuhai Gree Energy Saving & Refrigerating Technology Resarch Center Co., Ltd. Patentee after: GREE ELECTRIC APPLIANCES Inc. OF ZHUHAI Address before: 519070, Jinji Hill Road, front hill, Zhuhai, Guangdong Patentee before: GREE ELECTRIC APPLIANCES Inc. OF ZHUHAI |
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