CN104697260B - Control method for frequency adjustment point of heat pump unit - Google Patents
Control method for frequency adjustment point of heat pump unit Download PDFInfo
- Publication number
- CN104697260B CN104697260B CN201510083394.6A CN201510083394A CN104697260B CN 104697260 B CN104697260 B CN 104697260B CN 201510083394 A CN201510083394 A CN 201510083394A CN 104697260 B CN104697260 B CN 104697260B
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- Prior art keywords
- frequency
- controller
- output frequency
- value
- output
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2500/00—Problems to be solved
- F25B2500/12—Sound
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a control method for a frequency adjustment point of a heat pump unit. The method comprises the following steps: A, a frequency range causing sympathetic vibration of a pump unit and a scream of a compressor is input into a controller; B, the controller detects the water inlet and outlet temperature through a water inlet and outlet temperature sensing probe, and works out the output frequency of the pump unit; C, the controller automatically assigns a large or small output frequency value according to the output frequency and the frequency range in the step A, and transmits the value to a frequency converter; D, the compressor performs corresponding frequency increasing or reducing process according to output frequency. According to the method, the controller assigns a large or small output frequency value according to the output frequency and the firstly input frequency range and then transmits the value to the frequency converter, the method is simple and practicable, high in stability and low in implementation cost, efficiently avoids the possibility of sympathetic vibration or scream of the unit, and reduces the influence on daily life by unit noise. The method can be widely applied to the field of heat pumps.
Description
Technical field
The present invention relates to art of heat pumps, especially a kind of source pump frequency modulation point control method.
Background technology
Frequency conversion heat pump system is the hot-cool demand according to user, by changing the frequency of supply of drive motor for compressor, is changed
Become cooling system agent flux, so as to realize that the cooling/heating amount of heat pump is matched with the cold heat load of user.
The energy consumption of air conditioner refrigerating is continuously increased always, and energy supply is very nervous, and people are required to indoor comfort in addition
More and more higher, also just promotes the extensive application and the continuous development of frequency conversion heat pump technology of frequency conversion heat pump product.
Often occurs situations below when conventional frequency conversion heat pump is run at some frequencies：
1st, the resonance of unit inner components can be caused, is caused unit noise big, not only be have impact on our daily life,
And certain loss of unit inner components can be caused；
2nd, frequency-changeable compressor can be caused to send ear-piercing shriek, has had a strong impact on our daily life.
Prior art controls frequency-modulating process by complicated process, and high cost is difficult in maintenance, and technical difficulty is big.
The content of the invention
In order to solve above-mentioned technical problem, the purpose of the present invention is：One kind is provided and avoids frequency conversion heat pump unit internal resonance
And the frequency modulation point control method of frequency-changeable compressor cacophony.
The technical solution adopted in the present invention is：A kind of source pump frequency modulation point control method, includes following steps：
A, in the controller input cause the frequency range of generating set resonant vibration and compressor shriek；
B, controller detect the turnover coolant-temperature gage of unit by Inlet and outlet water temperature-sensitive head, and calculate the output frequency of unit；
C, when output frequency is more than minimum frequency in step A medium frequency scope, controller by the value of output frequency from
Frequency converter is transmitted further to after dynamic tax is little；When output frequency is less than the peak frequency in step A medium frequency scope, controller will be defeated
Frequency converter is transmitted further to after the automatic tax greatly of value for going out frequency；
D, frequency converter are exported according to the output frequency for receiving and carry out corresponding raising frequency or down conversion process to compressor.
Further, in step C, controller output frequency is assigned automatically it is little after value be less than step A medium frequency scope
Minimum of a value.
Further, in step C, the value after output frequency is assigned greatly by controller automatically is more than step A medium frequency scope
Maximum.
Further, in step B, controller goes out the output frequency of unit according to Inlet and outlet water differential thermal calculation.
Further, in step C, output frequency is transferred to frequency converter by RS485 holding wires by the controller.
The invention has the beneficial effects as follows：Because for frequency conversion heat pump unit, it is one which causes resonance and the frequency screamed
It is fixed, therefore need the frequency range evaded by being first input into the part in the controller, controller further according to output frequency with
Said frequencies scope is contrasted, and then the value of output frequency is carried out assigning greatly or is transmitted further to frequency converter after tax is little, its control
Method is simple, and stability is high, the low cost realized, and efficiently avoid that resonance and shriek occurs in unit can
Can, reduce unit noise and the impact to daily life.
Description of the drawings
The step of Fig. 1 is the inventive method flow chart.
Specific embodiment
Below in conjunction with the accompanying drawings the specific embodiment of the present invention is described further：
With reference to Fig. 1, a kind of source pump frequency modulation point control method includes following steps：
A, in the controller input cause the frequency range of generating set resonant vibration and compressor shriek；
B, controller detect the turnover coolant-temperature gage of unit by Inlet and outlet water temperature-sensitive head, and calculate the output frequency of unit；
C, when output frequency is more than minimum frequency in step A medium frequency scope, controller by the value of output frequency from
Frequency converter is transmitted further to after dynamic tax is little；When output frequency is less than the peak frequency in step A medium frequency scope, controller will be defeated
Frequency converter is transmitted further to after the automatic tax greatly of value for going out frequency；
D, frequency converter are exported according to the output frequency for receiving and carry out corresponding raising frequency or down conversion process to compressor.
Be further used as preferred embodiment, in step C, controller output frequency is assigned automatically it is little after value it is little
In the minimum of a value of step A medium frequency scope.
It is further used as preferred embodiment, in step C, the value after output frequency is assigned greatly by controller automatically is big
In the maximum of step A medium frequency scope.
Frequency values are made after automatic assignment less than the minimum of a value of step A medium frequency scope or more than step A medium frequency scope
Maximum, it is ensured that the scope of output frequency value is not in step in frequency range, therefore avoids frequency-changeable compressor altogether
Vibration frequency works, and it also avoid frequency-changeable compressor and is operated in resonant frequency in conversion process.
It is further used as preferred embodiment, in step B, controller goes out unit according to Inlet and outlet water differential thermal calculation
Output frequency.
It is further used as preferred embodiment, in step C, the controller will be exported by RS485 holding wires
Frequency is transferred to frequency converter.
It is more than that the preferable enforcement to the present invention is illustrated, but the invention is not limited to the enforcement
Example, those of ordinary skill in the art on the premise of without prejudice to spirit of the invention can also be made a variety of equivalents or be replaced
Change, the deformation or replacement of these equivalents are all contained in the application claim limited range.
Claims (3)
1. a kind of source pump frequency modulation point control method, it is characterised in that：Include following steps：
A, in the controller input cause the frequency range of generating set resonant vibration and compressor shriek；
B, controller detect the turnover coolant-temperature gage of unit by Inlet and outlet water temperature-sensitive head, and calculate the output frequency of unit；
C, when output frequency is more than minimum frequency in step A medium frequency scope, the value of output frequency is assigned by controller automatically
Be transmitted further to frequency converter after little, controller output frequency is assigned automatically it is little after value less than step A medium frequency scope minimum of a value；
When output frequency is less than peak frequency in step A medium frequency scope, controller the value of output frequency is assigned automatically it is big after again
Frequency converter is transferred to, the value after output frequency automatically tax greatly is more than controller the maximum of step A medium frequency scope；
D, frequency converter are exported according to the output frequency for receiving and carry out corresponding raising frequency or down conversion process to compressor.
2. a kind of source pump frequency modulation point control method according to claim 1, it is characterised in that：In step B, control
Device processed goes out the output frequency of unit according to Inlet and outlet water differential thermal calculation.
3. a kind of source pump frequency modulation point control method according to claim 1, it is characterised in that：In step C, institute
State controller and output frequency is transferred to by frequency converter by RS485 holding wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510083394.6A CN104697260B (en) | 2015-02-13 | 2015-02-13 | Control method for frequency adjustment point of heat pump unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510083394.6A CN104697260B (en) | 2015-02-13 | 2015-02-13 | Control method for frequency adjustment point of heat pump unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104697260A CN104697260A (en) | 2015-06-10 |
| CN104697260B true CN104697260B (en) | 2017-03-22 |
Family
ID=53344640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510083394.6A Active CN104697260B (en) | 2015-02-13 | 2015-02-13 | Control method for frequency adjustment point of heat pump unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104697260B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106545966B (en) * | 2016-10-28 | 2019-07-23 | 青岛海尔空调器有限总公司 | Air conditioner and its control method for frequency and control device |
| CN106524613A (en) * | 2016-11-14 | 2017-03-22 | 广东美的暖通设备有限公司 | Variable-frequency air-cooled heat pump unit and control method and device thereof |
| CN106524582B (en) * | 2016-11-24 | 2019-04-19 | 广东美的暖通设备有限公司 | Compressor load control method and device suitable for water side parallel connection Air-Cooled Heat Pump Unit |
| CN108826603B (en) * | 2018-06-14 | 2021-04-09 | 广东美的制冷设备有限公司 | Control method and device of air conditioner, air conditioner and remote controller thereof |
| CN108917121B (en) * | 2018-07-16 | 2020-05-19 | 奥克斯空调股份有限公司 | Air conditioner and control method and control device thereof |
| CN109556223A (en) * | 2018-10-26 | 2019-04-02 | 珠海格力电器股份有限公司 | Unit and method for controlling operation of unit |
| CN111197881B (en) * | 2018-11-19 | 2022-09-16 | 青岛经济技术开发区海尔热水器有限公司 | Noise reduction method for equipment with heat pump system |
| CN110617562A (en) * | 2019-09-12 | 2019-12-27 | 成都仙德科技有限公司 | Vibration suppression method for portable acoustic energy air conditioner |
| CN111023324B (en) * | 2019-12-27 | 2021-05-14 | 宁波奥克斯电气股份有限公司 | Control method and device for resonance noise and air conditioner |
| CN111536023B (en) * | 2020-05-14 | 2022-06-07 | 广东芬尼能源技术有限公司 | Control method and system for compressor running frequency interval and readable storage medium |
| CN114413440B (en) * | 2022-01-04 | 2023-07-04 | 宁波奥克斯电气股份有限公司 | Air conditioner control method, air conditioner and storage medium |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100557039B1 (en) * | 2003-10-16 | 2006-03-03 | 엘지전자 주식회사 | The method for control of airconditioner |
| US7628028B2 (en) * | 2005-08-03 | 2009-12-08 | Bristol Compressors International, Inc. | System and method for compressor capacity modulation |
| US7895003B2 (en) * | 2007-10-05 | 2011-02-22 | Emerson Climate Technologies, Inc. | Vibration protection in a variable speed compressor |
| CN104329771B (en) * | 2014-10-08 | 2017-11-10 | 美的集团股份有限公司 | Control method, system and the air conditioner of air conditioner |
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| CN104697260A (en) | 2015-06-10 |
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