CN109386999A - The control method of Efficient intelligent carbon-dioxide gas compressor controller - Google Patents
The control method of Efficient intelligent carbon-dioxide gas compressor controller Download PDFInfo
- Publication number
- CN109386999A CN109386999A CN201710667558.9A CN201710667558A CN109386999A CN 109386999 A CN109386999 A CN 109386999A CN 201710667558 A CN201710667558 A CN 201710667558A CN 109386999 A CN109386999 A CN 109386999A
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- Prior art keywords
- compressor
- control
- fan
- control method
- dioxide gas
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- 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.)
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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
Abstract
The control method of Efficient intelligent carbon-dioxide gas compressor controller, belongs to CO2The experiment of compressor controller and the field of using, in order to solve the problems, such as that compressor control is suitable for carbon dioxide compression, the driving method for having technical point that the compressor is sinewave torque control, the model of the compressor is single-rotor compressor, the ohmic heatingp of the compressor is 180 degree, the carrier frequency of the compressor is 15KHz, controlling into angle for the compressor is fixed control mode, the position detection mode of the compressor is no approach sensor, and the modified tone mode of the compressor is three-phase modified tone mode.
Description
Technical field
The invention belongs to CO2The experiment of compressor controller and the field of using, are related to a kind of Efficient intelligent carbon dioxide
The control method of compressor controller.
Background technique
CO2Compressor due to itself inherent advantages freeze and heat field have relatively broad application, at present
CO above market2Compressor drive is in control precision, control efficiency and that system function integrality and price are high etc. is all
The deficiency that various aspects have leads to most of CO2The use of compressor is not promoted widely, and mostly with the control of constant speed
Mode processed drives compressor, and the function of controller is relatively single, and compressor control is enabled to be suitable for pressurized carbon dioxide
Contracting, makes creation to its control mode, it appears extremely important.
Summary of the invention
In order to solve the problems, such as that compressor control is suitable for carbon dioxide compression, the following technical solutions are proposed by the present invention.
A kind of control method of Efficient intelligent carbon-dioxide gas compressor controller, the driving method of the compressor is just
String wave direct torque, the model of the compressor are single-rotor compressors, and the ohmic heatingp of the compressor is 180 degree, the pressure
The carrier frequency of contracting machine is 15KHz, and the compressor is fixed control mode into angle control, and the position of the compressor detects
Mode is no approach sensor, and the modified tone mode of the compressor is three-phase modified tone mode.
The operating priority of the compressor is: refrigeration operation；Anti-freeze of freezing control；Forced service；Defrost operation；
Voltage protection control；Overloading control；Compressor temperature protection control；Compressor current exception control；Compressor start control；
Revolving speed max/min limitation；Compressor operation is abnormal；Compressor, which is restarted, to be forbidden.
The operating control voltage overload of the compressor protects/controls the current overload protection maintaining method be: compressor operation mistake
The voltage and current that the maximum voltage being applied on compressor terminal and electric current are limited in journey to prevent frequency converter from exporting is beyond hard
The voltage and current supply capacity of part system, this method limit frequency converter output by limiting and reducing compressor operation frequency
Maximum voltage and electric current.
The control that permanent magnet synchronous motor is carried out using 180 degree position-sensor-free sine wave drive, in software aspects,
The setting of speed value is carried out, and controls speed, while using moment of torsion control and speed control, the output of speed control is made
Current control is carried out for q shaft current instruction value, current of electric detection is carried out by detection 1shunt electric current, in PWM modulation mode
Aspect use space Vector Modulation, the rotor-position and angular speed of BL/DC motor are estimated using flux observer.
The control method further includes the control method to fan, and the motor action mode of the fan includes compressor
CMP halted state, compressor start state, GC fan stop delaying state, compressor CMP operating condition；
When compressor CMP halted state, GC blower failure；EVA fan running FCO minutes, stop FCF minutes, and recycle
Operation；
When compressor start, after EVA fan booting operation 10s, GC fan booting operation, GC fan compresses after running 10s
Machine CMP is started；If EVA fan has run more than 10s when receiving compressor start order, GC fan is directly switched on
Operating；
When GC fan stops delaying state, under normal circumstances, GC fan is continued to run 1 minute after compressor CMP is shut down；It is different
When often shutting down, GC fan continuous service is restarted until compressor；
When compressor CMP operating condition, the operation of GC fan, the operation of EVA fan, when cabinet door is opened, internal temperature is risen to
When FSP or more, EVA fan shuts down.
The control method further includes numeral method control method: LED light movement: LE1-LE4 action definition are as follows: operation
When: lighting；No operation: it turns off the light；
LE1: it is lighted when Defrost operation；LE2:GCFAN or EVAFAN is lighted when running；When LE3: compressor CMP operation
It lights；LE4: information reception process is total, sensor detection mark；Wherein: LE1-LE4:LED lamp；
The control method further includes key operation control method, and button operation rule is as follows: forcing operating；Force defrosting；
Operation mode conversion.
The control method further includes buzzer control method: when (a) ISW is operated, buzzer rings；(b) after cabinet door is opened
It is not turned off, buzzer continues ring.
The control method further includes LED illumination setting method: (1) LED illumination be PWM control light modulation, control variable be LT,
It is 1-100% that range, which is arranged, in SLT, Duty；(2) lighting operation；(a) the brightness illumination of LT%Duty when operating normally；(b) to
LED extinguishes when machine state.
The utility model has the advantages that the invention enables the control methods to be suitable for carbon dioxide compression.
Detailed description of the invention
Fig. 1 is compressor operation priority figure；
Fig. 2 is compress technique frequency pace of change figure；
Fig. 3 is compressor start control figure；
Fig. 4 is compressor action ideograph；
Fig. 5 is the normal refrigeration operation curve graph of compressor；
Fig. 6 is display board distribution map；
Fig. 7 is configuration diagram.
Specific embodiment
Controller of the present invention is described as, length and width 240mm*160mm, is highly 50mm, two-sided epoxy
Resin type substrate, controller include overvoltage protection circuit, and short circuit includes circuit, filter circuit, two-way commutating circuit, Switching Power Supply
Circuit exports 24v, 15v, 12v, 5v, 3.3v, the circuit PowerRelay, IPM driving circuit, current detection circuit, display respectively
Driving circuit, key-press input circuit, human body sensing circuit, bluetooth communication circuit, the circuit RTC, data store loop, DC fan
Control loop, AC blower fan control loop, LED dimming loop, malfunction coefficient circuit, temperature acquisition circuit, debugging emulation circuit,
Main control chip circuit, relay output loop.
There is no the extension output interface of associated external equipment in face of existing controller.CO described in this embodiment2Compression
Machine controller also has external input output interface abundant other than having the function of driven compressor, high with control precision,
Functional modules and the control algolithms such as starting algorithm, vibrating noise control, torque and the weak magnetic control of optimization, while there is Width funtion
Input, the super voltage-limiting protection of system pressure, temperature acquisition, air-blower control, parameter setting and display, operation data memory, LED shine
Bright, human body sensing, bluetooth communication, RTC, PI adjust the control functions module such as operation, it can be achieved that diversification operation and control function
Energy.
1. compressor assembly control is realized
(1) summary:
| Driving method | Sinewave torque control |
| Compressor | Single rotor |
| Ohmic heatingp | 180 degree |
| Carrier frequency | 15KHz |
| It is controlled into angle | It is fixed |
| Position detection | Without sensor |
| Modified tone mode | Three-phase modified tone |
(2) compressor operation priority is as shown in Figure 1；
(3) compress technique frequency pace of change is as shown in Figure 2；
(4) compressor start control is as shown in Figure 3；
The compressor start time is STM minutes；
Compressor start process maximum frequency of operation is RRVr/s.
(5) compressor temperature protection control
Compressor temperature protection is carried out by exhaust gas temperature sensor feedback signal, compressor action mode is as shown in Figure 4.
(6) normal refrigeration operation curve such as Fig. 5 of compressor；
(7) compressor operation control voltage overload protect/control overcurrent protection
Need to limit the maximum voltage being applied on compressor terminal and electric current during compressor operation to prevent frequency conversion
The voltage and current of device output exceeds the voltage and current supply capacity of hardware system.By limiting and reducing compressor fortune in system
Turn the method for frequency to limit the maximum voltage and electric current of frequency converter output.Voltage and current limitation and releasing value
2. driven compressor realizes software
The control of permanent magnet synchronous motor (BL/DC) is carried out using 180 degree position-sensor-free sine wave drive.Software
The frequency converter for having been combined our company's exploitation is adjusted.Therefore when hardware environment change, need to recombine environment progress
Adjustment.
In software aspects, the setting of Yao Jinhang speed value, and control speed.In addition, in order to be applied to compressor
Control will use torque (inhibiting vibration) control and speed control simultaneously.Using the output of speed control as q shaft current instruction value
Carry out current control.Herein current of electric detection will be carried out by detection 1shunt electric current.In terms of PWM modulation mode, make
With space vector modulation.The rotor-position and angular speed of BL/DC motor are estimated using flux observer.
3. fan control: fan motor action mode:
(1) when compressor CMP halted state: GC blower failure；EVA fan running FCO minutes, stop FCF minutes, and follow
Ring operation；
(2) when compressor start: after EVA fan booting operation 10s, GC fan booting operation, GC fan is pressed after running 10s
Contracting machine CMP is started；If EVA fan has run more than 10s when receiving compressor start order, then GC fan is directly opened
Machine operating；
(3) GC fan stops delay: under normal circumstances, GC fan continues to run 1 minute after compressor CMP is shut down；It is abnormal
When shutdown, GC fan continuous service is restarted until compressor；
(4) when compressor CMP is operated: the operation of GC fan, the operation of EVA fan, when cabinet door is opened, internal temperature is risen to
When FSP or more, EVA fan shuts down；
4. numeral method
(1) display board distribution map is as shown in Figure 6；In figure: LE1-LE4:LED lamp；ISW1-ISW4: key；7 sections of SEG:3 row
Charactron；
(2) LED light acts: LE1-LE4 action definition are as follows: when operation: lighting；No operation: it turns off the light；LE1: when Defrost operation
It lights；LE2:GCFAN or EVAFAN is lighted when running；It is lighted when LE3: compressor CMP operation；LE4: information reception process
Always, sensor detection mark；
5. button operation: button operation rule is as follows: forcing operating；Force defrosting；Operation mode conversion.
6. buzzer controls (a) ISW operation, buzzer rings；(b) cabinet door is not turned off after opening, and buzzer is lasting
Ring.
7.LED illumination setting: (1) LED illumination is PWM control light modulation；Control variable is LT, and SLT, Duty setting range are
1-100%；(2) the brightness illumination of LT%Duty when lighting operation (a) operates normally；(b) LED extinguishes when standby mode.
Configuration diagram is as shown in Figure 7.
The preferable specific embodiment of the above, only the invention, but the protection scope of the invention is not
It is confined to this, anyone skilled in the art is in the technical scope that the invention discloses, according to the present invention
The technical solution of creation and its inventive concept are subject to equivalent substitution or change, should all cover the invention protection scope it
It is interior.
Claims (9)
1. a kind of control method of Efficient intelligent carbon-dioxide gas compressor controller, it is characterised in that: the drive of the compressor
Flowing mode is sinewave torque control, and the model of the compressor is single-rotor compressor, and the ohmic heatingp of the compressor is 180
Degree, the carrier frequency of the compressor is 15KHz, and controlling into angle for the compressor is fixed control mode, the compressor
Position detection mode be no approach sensor, the modified tone mode of the compressor is three-phase modified tone mode.
2. the control method of Efficient intelligent carbon-dioxide gas compressor controller as described in claim 1, which is characterized in that institute
The operating priority for stating compressor is:
Refrigeration operation；
Anti-freeze of freezing control；
Forced service；
Defrost operation；
Voltage protection control；
Overloading control；
Compressor temperature protection control；
Compressor current exception control；
Compressor start control；
Revolving speed max/min limitation；
Compressor operation is abnormal；
Compressor, which is restarted, to be forbidden.
3. the control method of Efficient intelligent carbon-dioxide gas compressor controller as described in claim 1, which is characterized in that institute
The operating control voltage overload for stating compressor protects/controls the current overload protection maintaining method be: limiting and applies during compressor operation
Electricity of the voltage and current beyond hardware system that maximum voltage and electric current on compressor terminal are added to prevent frequency converter from exporting
Current voltage supply capacity, this method limited by limiting and reducing compressor operation frequency frequency converter output maximum voltage and
Electric current.
4. the control method of Efficient intelligent carbon-dioxide gas compressor controller as described in claim 1, which is characterized in that make
The control that permanent magnet synchronous motor is carried out with 180 degree position-sensor-free sine wave drive carries out speed and refers in software aspects
The setting of value is enabled, and controls speed, while using moment of torsion control and speed control, using the output of speed control as q shaft current
Instruction value carries out current control, carries out current of electric detection by detection 1shunt electric current, sky is used in terms of PWM modulation mode
Between Vector Modulation, the rotor-position and angular speed of BL/DC motor estimated using flux observer.
5. the control method of Efficient intelligent carbon-dioxide gas compressor controller as described in claim 1, which is characterized in that also
Including the control method to fan, the motor action mode of the fan includes compressor CMP halted state, compressor start
State, GC fan stop delaying state, compressor CMP operating condition；
When compressor CMP halted state, GC blower failure；EVA fan running FCO minutes, stop FCF minutes, and circulate operation；
When compressor start, after EVA fan booting operation 10s, GC fan booting operation, GC fan runs compressor CMP after 10s
It starts；If EVA fan has run more than 10s when receiving compressor start order, GC fan is directly switched on operating；
When GC fan stops delaying state, under normal circumstances, GC fan is continued to run 1 minute after compressor CMP is shut down；Exception is stopped
When machine, GC fan continuous service is restarted until compressor；
When compressor CMP operating condition, GC fan operation, EVA fan operation, when cabinet door open, internal temperature rise to FSP with
When upper, EVA fan shuts down.
6. the control method of Efficient intelligent carbon-dioxide gas compressor controller as described in claim 1, which is characterized in that also
Including numeral method control method:
LED light movement:
LE1-LE4 action definition are as follows:
When operation: lighting；
No operation: it turns off the light；
LE1: it is lighted when Defrost operation；
LE2:GCFAN or EVAFAN is lighted when running；
It is lighted when LE3: compressor CMP operation；
LE4: information reception process is total, sensor detection mark；
Wherein: LE1-LE4:LED lamp.
7. the control method of Efficient intelligent carbon-dioxide gas compressor controller as described in claim 1, which is characterized in that also
Including key operation control method, button operation rule is as follows:
Force operating；
Force defrosting；
Operation mode conversion.
8. the control method of Efficient intelligent carbon-dioxide gas compressor controller as described in claim 1, which is characterized in that also
Including buzzer control method:
(a) when ISW is operated, buzzer rings；
(b) cabinet door is not turned off after opening, and buzzer continues ring.
9. the control method of Efficient intelligent carbon-dioxide gas compressor controller as described in claim 1, which is characterized in that also
Including LED illumination setting method:
(1) LED illumination is PWM control light modulation, and control variable is LT, SLT, and it is 1-100% that range, which is arranged, in Duty；
(2) lighting operation；
(a) the brightness illumination of LT%Duty when operating normally；
(b) LED extinguishes when standby mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710667558.9A CN109386999A (en) | 2017-08-07 | 2017-08-07 | The control method of Efficient intelligent carbon-dioxide gas compressor controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710667558.9A CN109386999A (en) | 2017-08-07 | 2017-08-07 | The control method of Efficient intelligent carbon-dioxide gas compressor controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109386999A true CN109386999A (en) | 2019-02-26 |
Family
ID=65413700
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|---|---|---|---|
| CN201710667558.9A Pending CN109386999A (en) | 2017-08-07 | 2017-08-07 | The control method of Efficient intelligent carbon-dioxide gas compressor controller |
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