CN104697260A - 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
- CN104697260A CN104697260A CN201510083394.6A CN201510083394A CN104697260A CN 104697260 A CN104697260 A CN 104697260A CN 201510083394 A CN201510083394 A CN 201510083394A CN 104697260 A CN104697260 A CN 104697260A
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- Prior art keywords
- frequency
- controller
- output frequency
- value
- control method
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Classifications
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- 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
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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
- 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)
- Air Conditioning Control Device (AREA)
- Heat-Pump Type And Storage Water Heaters (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, changes cooling system agent flux, thus realize the cooling/heating amount of heat pump and user cold/thermic load matches.
The energy consumption of air conditioner refrigerating constantly increases always, and energy supply is very nervous, and people require more and more higher to indoor comfort in addition, also just facilitate the extensive use of frequency conversion heat pump product and the development of frequency conversion heat pump technology.
Following situation is often there will be when frequency conversion heat pump in the past runs at some frequencies:
1, the resonance of unit inner components can be caused, cause unit noise large, not only have impact on our daily life, and certain loss of unit inner components can be caused;
2, frequency-changeable compressor can be caused to send ear-piercing shriek, have a strong impact on our daily life.
Prior art controls frequency-modulating process by complicated process, and cost is high, difficult in maintenance, and technical difficulty is large.
Summary of the invention
In order to solve the problems of the technologies described above, the object of the invention is: a kind of frequency modulation point control method avoiding frequency conversion heat pump unit internal resonance and frequency-changeable compressor cacophony is provided.
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 Inlet and outlet water temperature of unit by Inlet and outlet water temperature-sensitive head, and calculate the output frequency of unit;
C, when output frequency is greater than the minimum frequency in steps A medium frequency scope, controller the value of output frequency is composed automatically little after be transferred to frequency converter again; When output frequency is less than the peak frequency in steps A medium frequency scope, the value of output frequency is composed greatly and is transferred to frequency converter again by controller automatically;
D, frequency converter are exported to compressor according to the output frequency received and are carried out corresponding raising frequency or down conversion process.
Further, in described step C, controller output frequency is composed automatically little after value be less than the minimum of a value of steps A medium frequency scope.
Further, in described step C, output frequency is composed the maximum that the value is greatly greater than steps A medium frequency scope by controller automatically.
Further, in described step B, controller goes out the output frequency of unit according to Inlet and outlet water differential thermal calculation.
Further, in described step C, output frequency is transferred to frequency converter by RS485 holding wire by described controller.
The invention has the beneficial effects as follows: because for frequency conversion heat pump unit, it causes the frequency resonating and scream is certain, therefore by first inputting the frequency range that this part needs to evade in the controller, controller contrasts according to output frequency and said frequencies scope again, then to the value of output frequency carry out tax large or compose little after be transferred to frequency converter again, its control method is simple and easy to do, and the cost that stability is high, realize is low, avoid the possibility that resonance and shriek appear in unit efficiently, reduce unit noise and the impact on daily life.
Accompanying drawing explanation
Fig. 1 is the flow chart of steps of the inventive method.
Detailed description of the invention
Below in conjunction with accompanying drawing, 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 Inlet and outlet water temperature of unit by Inlet and outlet water temperature-sensitive head, and calculate the output frequency of unit;
C, when output frequency is greater than the minimum frequency in steps A medium frequency scope, controller the value of output frequency is composed automatically little after be transferred to frequency converter again; When output frequency is less than the peak frequency in steps A medium frequency scope, the value of output frequency is composed greatly and is transferred to frequency converter again by controller automatically;
D, frequency converter are exported to compressor according to the output frequency received and are carried out corresponding raising frequency or down conversion process.
Be further used as preferred embodiment, in described step C, controller output frequency is composed automatically little after value be less than the minimum of a value of steps A medium frequency scope.
Be further used as preferred embodiment, in described step C, output frequency is composed the maximum that the value is greatly greater than steps A medium frequency scope by controller automatically.
Frequency values is made to be less than the minimum of a value of steps A medium frequency scope or to be greater than the maximum of steps A medium frequency scope after automatic assignment, the scope that ensure that output frequency value is not in step in frequency range, therefore avoid frequency-changeable compressor in resonant frequency work, it also avoid frequency-changeable compressor and be operated in resonant frequency in conversion process.
Be further used as preferred embodiment, in described step B, controller goes out the output frequency of unit according to Inlet and outlet water differential thermal calculation.
Be further used as preferred embodiment, in described step C, output frequency is transferred to frequency converter by RS485 holding wire by described controller.
More than that better enforcement of the present invention is illustrated, but the invention is not limited to described embodiment, those of ordinary skill in the art can also make all equivalents or replacement under the prerequisite without prejudice to spirit of the present invention, and these equivalent distortion or replacement are all included in the application's claim limited range.
Claims (5)
1. a source pump frequency modulation point control method, is characterized 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 Inlet and outlet water temperature of unit by Inlet and outlet water temperature-sensitive head, and calculate the output frequency of unit;
C, when output frequency is greater than the minimum frequency in steps A medium frequency scope, controller the value of output frequency is composed automatically little after be transferred to frequency converter again; When output frequency is less than the peak frequency in steps A medium frequency scope, the value of output frequency is composed greatly and is transferred to frequency converter again by controller automatically;
D, frequency converter are exported to compressor according to the output frequency received and are carried out corresponding raising frequency or down conversion process.
2. a kind of source pump frequency modulation point control method according to claim 1, is characterized in that: in described step C, controller output frequency is composed automatically little after value be less than the minimum of a value of steps A medium frequency scope.
3. a kind of source pump frequency modulation point control method according to claim 1, is characterized in that: in described step C, and output frequency is composed the maximum that the value is greatly greater than steps A medium frequency scope by controller automatically.
4. a kind of source pump frequency modulation point control method according to claim 1, it is characterized in that: in described step B, controller goes out the output frequency of unit according to Inlet and outlet water differential thermal calculation.
5. a kind of source pump frequency modulation point control method according to claim 1, it is characterized in that: in described step C, output frequency is transferred to frequency converter by RS485 holding wire by described controller.
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 true CN104697260A (en) | 2015-06-10 |
| CN104697260B CN104697260B (en) | 2017-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510083394.6A Active CN104697260B (en) | 2015-02-13 | 2015-02-13 | Control method for frequency adjustment point of heat pump unit |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN106524582A (en) * | 2016-11-24 | 2017-03-22 | 广东美的暖通设备有限公司 | Compressor load control method and device applicable to water side parallel-connected air cooled heat pump units |
| CN106545966A (en) * | 2016-10-28 | 2017-03-29 | 青岛海尔空调器有限总公司 | Air-conditioner and its control method for frequency and control device |
| CN108826603A (en) * | 2018-06-14 | 2018-11-16 | 广东美的制冷设备有限公司 | Control method, device, air conditioner and its remote controler of air conditioner |
| CN108917121A (en) * | 2018-07-16 | 2018-11-30 | 奥克斯空调股份有限公司 | Air conditioner and its control method and control device |
| 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 |
| 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 |
| CN111023324A (en) * | 2019-12-27 | 2020-04-17 | 宁波奥克斯电气股份有限公司 | Control method and device for resonance noise and air conditioner |
| CN111197881A (en) * | 2018-11-19 | 2020-05-26 | 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 |
| CN111536023A (en) * | 2020-05-14 | 2020-08-14 | 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 |
| CN114413440A (en) * | 2022-01-04 | 2022-04-29 | 宁波奥克斯电气股份有限公司 | Control method of air conditioner, air conditioner and storage medium |
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| CN101821505A (en) * | 2007-10-05 | 2010-09-01 | 艾默生环境优化技术有限公司 | Vibration protection in variable speed compressor |
| CN104329771A (en) * | 2014-10-08 | 2015-02-04 | 美的集团股份有限公司 | Control method and system of air conditioner as well as air conditioner |
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2015
- 2015-02-13 CN CN201510083394.6A patent/CN104697260B/en active Active
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| CN1607361A (en) * | 2003-10-16 | 2005-04-20 | Lg电子株式会社 | Method for controlling air conditioner |
| US20100083680A1 (en) * | 2005-08-03 | 2010-04-08 | Tolbert Jr John W | System for compressor capacity modulation |
| CN101821505A (en) * | 2007-10-05 | 2010-09-01 | 艾默生环境优化技术有限公司 | Vibration protection in variable speed compressor |
| CN104329771A (en) * | 2014-10-08 | 2015-02-04 | 美的集团股份有限公司 | Control method and system of air conditioner as well as air conditioner |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106545966A (en) * | 2016-10-28 | 2017-03-29 | 青岛海尔空调器有限总公司 | Air-conditioner and its control method for frequency and control device |
| 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 |
| CN106524582A (en) * | 2016-11-24 | 2017-03-22 | 广东美的暖通设备有限公司 | Compressor load control method and device applicable to water side parallel-connected air cooled heat pump units |
| 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 |
| CN108826603A (en) * | 2018-06-14 | 2018-11-16 | 广东美的制冷设备有限公司 | Control method, device, air conditioner and its remote controler of air conditioner |
| 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 |
| CN108917121A (en) * | 2018-07-16 | 2018-11-30 | 奥克斯空调股份有限公司 | Air conditioner and its control method and control device |
| 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 |
| CN111197881A (en) * | 2018-11-19 | 2020-05-26 | 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 |
| CN111023324A (en) * | 2019-12-27 | 2020-04-17 | 宁波奥克斯电气股份有限公司 | Control method and device for resonance noise and 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 |
| CN111536023A (en) * | 2020-05-14 | 2020-08-14 | 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 |
| 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 |
| CN114413440A (en) * | 2022-01-04 | 2022-04-29 | 宁波奥克斯电气股份有限公司 | Control method of air conditioner, air conditioner and storage medium |
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| Publication number | Publication date |
|---|---|
| CN104697260B (en) | 2017-03-22 |
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