CN104753432B - Suppress the method for rotor-type compressor low-frequency vibration - Google Patents
Suppress the method for rotor-type compressor low-frequency vibration Download PDFInfo
- Publication number
- CN104753432B CN104753432B CN201510197374.1A CN201510197374A CN104753432B CN 104753432 B CN104753432 B CN 104753432B CN 201510197374 A CN201510197374 A CN 201510197374A CN 104753432 B CN104753432 B CN 104753432B
- Authority
- CN
- China
- Prior art keywords
- compressor
- current
- phase
- low
- frequency
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The present invention relates to compressor, in order to solves the problems, such as that existing single-turn minor compressor low-frequency vibration suppressing method inhibition is bad.The present invention provides a kind of method for suppressing rotor-type compressor low-frequency vibration, and this method comprises the following steps：Step 1: according to the phase relation of compressor electric motor three-phase current and speed ripple, phase difference between compressor mechanical angle zero position and electric angle zero position is calculated with reference to the number of poles of compressor, the phase difference is the angle of the minimum point of speed ripple；Step 2: when torque current exports, the torque adjusting electric current of air resistance square curve same phase on the basis of the phase difference in superposition one and compressor gas chamber one week, so that output torque is identical with compressor drum stress, the torque adjusting current value is current value corresponding to speed ripple hour.The present invention is applied to single-turn minor compressor.
Description
Technical field
The present invention relates to compressor, more particularly to a kind of method for suppressing rotor-type compressor low-frequency vibration.
Background technology
As the energy increasingly exhausts, energy-conservation turns into one of social development main flow problem.Protruded as energy-saving effect new
Technology, convertible frequency air-conditioner have turned into the main trend of development of air conditioning industry, still, for DC frequency converting air-conditioner compressor, especially
It is for single-rotor compressor, because air resistance square cycle of the gas compression chamber in one week during low-frequency operation
Property change, rotating speed of the compressor rotor in one week and compressor gas moment of resistance changing inversely can be caused so that
Compressor produces vibration.Current method is typically that torque current is adjusted and compensated according to the fluctuation of speed, to reach
Reduce vibration purpose, due to the change of speed be lag torque change, in this way to the inhibition of vibration
It is not fine.
The content of the invention
It is bad the invention aims to solve existing single-turn minor compressor low-frequency vibration suppressing method inhibition
The problem of.
To reach above-mentioned purpose, the present invention provides a kind of method for suppressing rotor-type compressor low-frequency vibration, this method bag
Include following steps：
Step 1: according to the phase relation of compressor electric motor three-phase current and speed ripple, with reference to the number of poles meter of compressor
The phase difference between compressor mechanical angle zero position and electric angle zero position is calculated, the phase difference is that speed ripple is minimum
Point angle, compressor electric motor number of poles is the basic parameter of compressor electric motor, is had determined that when compressor dispatches from the factory.
Step 2: when torque current exports, one and compressor gas chamber one week are superimposed on the basis of the phase difference
The torque adjusting electric current of interior air resistance square curve same phase so that output torque is identical with compressor drum stress, institute
It is current value corresponding to speed ripple hour to state torque adjusting current value.
Specifically, also include before step 1：Compressor detects the three-phase of compressor electric motor during low-frequency operation
Electric current, and apply torque current, while detection speed ripple in the phase of different electric currents.
Specifically, the specific method for detecting the three-phase current of compressor electric motor is：Utilize two current sensors or shunting
The U phase currents of device resistance detection compressor electric motor and W phase currents, the motor is calculated according to the U phase currents and W phase currents
V phase currents, the V phase currents of the motor be equal to U phase currents and W phase currents and negative.
Specifically, the frequency of the compressor low-frequency operation is 5HZ to 40HZ.
Specifically, the frequency of the compressor low-frequency operation is 1HZ to 5HZ.
Specifically, the frequency of the compressor low-frequency operation is 40HZ to 80HZ.
Specifically, when compressor current is detected in the low-frequency vibration, while the vibrations noise peak of compression is detected, and with
Pre-set peak value is compared, and then adjusts the operating frequency of compressor.
Specifically, when compressor current is detected in the low-frequency vibration, while the vibrations noise peak of compression is detected, and with
Pre-set peak value is compared, and then adjusts the driving current of compressor.
The beneficial effects of the invention are as follows：In one week that the present invention calculates when being and designing and produce according to rotor-type compressor
Air resistance square change curve taken part in a performance as the feedforward of motor torque control, compressor electric motor torque output current is adjusted
Section, to offset air resistance square cyclically-varying of the gas compression chamber in one week, makes compressor rotor in one week
Rotating speed tends to be constant, reaches the effect of vibration when preferably reducing single-rotor compressor low-frequency operation.
Technical scheme is described in further detail with reference to embodiments, it is noted that embodiment
Just for the sake of helping reader to more fully understand the technical concept of the present invention, the protection of claim is not intended to limit the invention
Scope.
Embodiment
The present invention is directed to the problem of current single-turn minor compressor low-frequency vibration suppressing method inhibition is bad, there is provided one
The method that kind suppresses rotor-type compressor low-frequency vibration, this method comprise the following steps：Step 1: according to compressor electric motor three-phase
The phase relation of electric current and speed ripple, compressor mechanical angle zero position and electric angle are calculated with reference to the number of poles of compressor
Phase difference between zero position, the phase difference are the angle of the minimum point of speed ripple；Step 2: when torque current exports,
The power of air resistance square curve same phase on the basis of the phase difference in superposition one and compressor gas chamber one week
Square adjusts electric current so that output torque is identical with compressor drum stress, and the torque adjusting current value is speed ripple hour
Corresponding current value.
Embodiment
The detailed process of the method for the suppression rotor-type compressor low-frequency vibration to the present invention does a description below.
Compressor operating according to UVW three-phase currents phase and the phase relation of speed ripple and combines pressure in low-frequency range
The number of poles of contracting machine, the phase difference between compressor mechanical angle zero degree position and electric angle zero degree position is calculated automatically.It is low
Frequent section is generally 5 to 40Hz, but is not limited only to 5~40HZ, may be wider, and ordinary circumstance is less than 40HZ.Obtain phase
Difference specific method be：Apply torque current, while detection speed ripple, the angle of the minimum point of speed ripple in different phases
Degree is exactly the phase difference between compressor mechanical angle zero degree position and electric angle zero degree position.When torque current exports,
One and the gas in rotor compressor air chamber one week are superimposed on the basis of the above-mentioned phase difference calculated on torque current
The torque adjusting electric current of body damping moment curve same-phase, it is superimposed and is directly added two electric currents.M curve be it is constant,
The size of torque adjusting electric current determines according to speed ripple, with the minimum regulation target of speed ripple.Rotor compressor gas
Air resistance square curve in chamber one week is just had determined that after compressor design is completed, and the curve map is set by compressor
Meter Software simulation calculation comes out.Include in output torque one it is bent with the air resistance square in rotor compressor air chamber one week
The related torque of line and the torque of a speed control output, identical with compressor drum stress, compressor drum rotating speed can be with
Keep constant, vibration is also corresponding to disappear.
Claims (8)
1. suppress the method for rotor-type compressor low-frequency vibration, it is characterised in that comprise the following steps：
Step 1: according to the phase relation of compressor electric motor three-phase current and speed ripple, calculated with reference to the number of poles of compressor
Phase difference between compressor mechanical angle zero position and electric angle zero position, the phase difference are the minimum point of speed ripple
Angle；
Step 2: when torque current exports, on the basis of the phase difference superposition one with compressor gas chamber one week
The torque adjusting electric current of air resistance square curve same phase so that output torque is identical with compressor drum stress, the power
Square regulation current value is current value corresponding to speed ripple hour.
2. suppress the method for rotor-type compressor low-frequency vibration as claimed in claim 1, it is characterised in that before step 1 also
Including：Compressor detects the three-phase current of compressor electric motor during low-frequency operation, and in the phase applying power of different electric currents
Square electric current, while detection speed ripple.
3. suppress the method for rotor-type compressor low-frequency vibration as claimed in claim 2, it is characterised in that detection compression is electromechanical
The specific method of the three-phase current of machine is：Utilize the U phases of two current sensors or current divider resistance detection compressor electric motor electricity
Stream and W phase currents, the V phase currents of the motor, the V phase currents of the motor are calculated according to the U phase currents and W phase currents
Equal to U phase currents and W phase currents and negative.
4. the method for the suppression rotor-type compressor low-frequency vibration as described in claims 1 to 3 any one, it is characterised in that
The frequency of the compressor low-frequency operation is 5HZ to 40HZ.
5. the method for the suppression rotor-type compressor low-frequency vibration as described in claims 1 to 3 any one, it is characterised in that
The frequency of the compressor low-frequency operation is 1HZ to 5HZ.
6. the method for the suppression rotor-type compressor low-frequency vibration as described in claims 1 to 3 any one, it is characterised in that
The frequency of the compressor low-frequency operation is 40HZ to 80HZ.
7. the method for the suppression rotor-type compressor low-frequency vibration as described in claims 1 to 3 any one, it is characterised in that
When compressor current is detected in the low-frequency vibration, while the vibration noise peak value of compression is detected, and compared with pre-set peak value
Compared with, then adjust compressor operating frequency.
8. the method for the suppression rotor-type compressor low-frequency vibration as described in claims 1 to 3 any one, it is characterised in that
When compressor current is detected in the low-frequency vibration, while the vibration noise peak value of compression is detected, and compared with pre-set peak value
Compared with, then adjust compressor driving current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510197374.1A CN104753432B (en) | 2015-04-23 | 2015-04-23 | Suppress the method for rotor-type compressor low-frequency vibration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510197374.1A CN104753432B (en) | 2015-04-23 | 2015-04-23 | Suppress the method for rotor-type compressor low-frequency vibration |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104753432A CN104753432A (en) | 2015-07-01 |
| CN104753432B true CN104753432B (en) | 2017-11-10 |
Family
ID=53592650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510197374.1A Active CN104753432B (en) | 2015-04-23 | 2015-04-23 | Suppress the method for rotor-type compressor low-frequency vibration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104753432B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106895660A (en) * | 2017-02-06 | 2017-06-27 | 安徽美芝制冷设备有限公司 | Frequency conversion refrigerator and its control system and control method |
| CN109763979B (en) * | 2018-12-17 | 2020-02-14 | 珠海格力电器股份有限公司 | Vibration reduction control method for rotor type compressor parallel unit |
| CN111237191B (en) * | 2019-12-04 | 2020-12-18 | 珠海格力电器股份有限公司 | Method and device for determining rotor phase of compressor and compressor |
| CN111277189B (en) * | 2020-03-25 | 2022-02-25 | 海信（山东）空调有限公司 | Compressor low-frequency vibration suppression method and system |
| CN111431441B (en) * | 2020-04-10 | 2022-01-11 | 宁波奥克斯电气股份有限公司 | Motor rotating speed control method and device, air conditioner and storage medium |
| CN114659226A (en) * | 2022-03-03 | 2022-06-24 | 海信（山东）空调有限公司 | Air conditioner and compressor stop control method |
| CN114719476B (en) * | 2022-03-03 | 2023-12-15 | 上海海立（集团）股份有限公司 | Compressor, operation control method and system thereof, and storage medium |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102522941A (en) * | 2011-12-21 | 2012-06-27 | 海尔集团公司 | Method for suppressing low-frequency vibration of compressor and system for suppressing low-frequency vibration of compressor |
| CN103780185A (en) * | 2012-10-19 | 2014-05-07 | 浙江盾安人工环境股份有限公司 | Compressor torque control method and torque control device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4314816B2 (en) * | 2002-11-28 | 2009-08-19 | ダイキン工業株式会社 | Brushless DC motor and brushless DC motor control device |
-
2015
- 2015-04-23 CN CN201510197374.1A patent/CN104753432B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102522941A (en) * | 2011-12-21 | 2012-06-27 | 海尔集团公司 | Method for suppressing low-frequency vibration of compressor and system for suppressing low-frequency vibration of compressor |
| CN103780185A (en) * | 2012-10-19 | 2014-05-07 | 浙江盾安人工环境股份有限公司 | Compressor torque control method and torque control device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104753432A (en) | 2015-07-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104753432B (en) | Suppress the method for rotor-type compressor low-frequency vibration | |
| CN101478281B (en) | Starting method for brushless DC motor without position sensor based on current feedback | |
| JP5175887B2 (en) | Motor control device and electrical equipment | |
| CN106152392B (en) | Constant air capacity control, device and the air conditioner room unit of air conditioner room unit | |
| CN102522941B (en) | Method for suppressing low-frequency vibration of compressor and system for suppressing low-frequency vibration of compressor | |
| AU2006347701B2 (en) | Electric motor driving device, and compressor driving device | |
| CN103532462B (en) | Permagnetic synchronous motor low-frequency torque compensation transition control method | |
| CN101931363B (en) | Control method of VVVF (Variable Velocity Variable Frequency) direct-current brushless motor with voltage/current feedback | |
| CN104359184B (en) | Carrier frequency conversion control method and controller | |
| CN104779845B (en) | Permanent-magnet brushless DC electric machine position and Rotating speed measring method | |
| CN105322855A (en) | Apparatus for controlling rotary machine | |
| JP6368523B2 (en) | Motor control device | |
| US20150091483A1 (en) | Electric Motor Control Device | |
| CN103378788A (en) | Method and device for driving compressor for variable-frequency air conditioner | |
| CN104767457B (en) | The method of parameter adaptive in DC frequency-changeable compressor operational process | |
| CN105207566B (en) | He controls the asynchronous oscillation suppressing method and its double feedback electric engine system of formula double feedback electric engine | |
| CN103475296B (en) | Permanent-magnet synchronous DC brushless motor low frequency control method | |
| CN101729016A (en) | Motor controller, motor control method and air conditioner | |
| CN104135199A (en) | Motor driving control method having function of fan/pump constant flow | |
| WO2020234971A1 (en) | Motor driving device, compressor driving device, and refrigeration cycle device | |
| CN106208869B (en) | No electrolytic capacitor motor driven systems and its control method, device | |
| Park et al. | Active mechanical vibration control of rotary compressors for air-conditioning systems | |
| CN103684174A (en) | Automatic energy-saving method of asynchronous motor | |
| JP2009177934A (en) | Inverter control device for driving motor | |
| JP6082558B2 (en) | Motor control device and refrigerator using the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |