CN105737326A - Intelligent controller of frequency converting control device of integrated compressor - Google Patents
Intelligent controller of frequency converting control device of integrated compressor Download PDFInfo
- Publication number
- CN105737326A CN105737326A CN201510721457.6A CN201510721457A CN105737326A CN 105737326 A CN105737326 A CN 105737326A CN 201510721457 A CN201510721457 A CN 201510721457A CN 105737326 A CN105737326 A CN 105737326A
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- Prior art keywords
- main control
- ipm module
- intelligent controller
- control chip
- controls
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Classifications
-
- 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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
-
- 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
- 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
- F24F2013/247—Active noise-suppression
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
The invention relates to the technical field of compressor frequency converting control, in particular to an intelligent controller of a frequency converting control device of an integrated compressor. The intelligent controller comprises an outer unit control panel. The outer unit control panel comprises a main control chip, a driver chip, a switching power supply, a rectifier bridge, a BOOST PFC switching circuit and an IPM module. An external alternating current power supply is in connection with the rectifier bridge through an EMI filter; a fuse and a PTC are connected in sequence between the EMI filter and the rectifier bridge; a rectifier is connected with the BOOST PFC switching circuit; a BOOST switching circuit is connected with the IPM module; and the IPM module is connected with the compressor. The main control chip controls an RV valve, a draught fan and the PTC through corresponding relays. The driver chip is connected with the BOOST PFC switching circuit and the IPM module correspondingly. An external PFC electric reactor and a built-in PFC capacitor are utilized. N-pole amphenol connectors NU/NV/NW driving a lower bridge arm IGBT in the IPM module are subjected to current sampling, and the samples are fed back to the main control chip after being amplified by an amplifier. The IGBT in the IPM module is integrated in the driver chip, and the main control chip outputs PWM control signals to control the connection and cut-off of the IGBT.
Description
Technical field
The present invention relates to compressor variable frequency and control technical field, specifically a kind of integral compressor controls converter plant.
Background technology
Fixed-frequency-type compressor traditional at present can not carry out stepless time adjustment, and compression mechanism cold efficiency is low, it is impossible to select to carry out the duty of correspondence according to user's laws of use, environmental change, this shortcoming causes the huge waste of the energy.
Do not meet current national environmental protection power conservation requirement.
AC frequency conversion air-conditioning, motor all adopts alternating current generator, and only compressor electric motor can regulate and control speed.
Principle is by adopting " converter " to change the frequency of alternating current, thus reaching the purpose of governing speed.
Existing DC frequency converting air-conditioner controls system, and indoor fan is the DC fan of built-in driving, and outdoor compressor is PMSM compressor, and outdoor fan is PMSM motor.Indoor set receives air-conditioning remote control and controls information or emergence button information, control air-conditioner and run on corresponding pattern (automatically, freeze, dehumidify, blow or heat), off-premises station from the communication information of indoor set determine off-premises station running status (standby, freeze or heat).
Control the running status of compressor, outdoor fan, electric expansion valve, cross valve simultaneously.
Frequency conversion control technique is power saving more, and centre does not have too much excitation sound, and direct current generator runs more stable peace and quiet.
Existing DC frequency converting air-conditioner Control System Design is complicated, and the loss of switching power tube is big, the single resistor current Sampling techniques adopted at present, it is impossible to realize real-time current control and protection.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the present invention provides a kind of integral compressor to control the intelligent controller of converter plant, reduces the loss of switching power tube, the efficiency of the bigger system that improves, it is achieved real-time current controls and protection.
The present invention realizes with following technical scheme: a kind of integral compressor controls the intelligent controller of converter plant, and including outer machine panel, external ac power source connects outer machine panel by electromagnetic interface filter, and outer machine panel is connected to RV valve, compressor and blower fan；Described outer machine panel includes main control chip, driving chip, Switching Power Supply, rectifier bridge, BOOSTPFC on-off circuit and IPM module；It is connected by isolation communication between main control chip with driving chip；External ac power source connects rectifier bridge by electromagnetic interface filter, is connected with electric fuse and PTC between electromagnetic interface filter and rectifier bridge in turn, and commutator connects BOOSTPFC on-off circuit, and BOOST on-off circuit connects IPM module, and IPM module connects compressor；Main control chip is respectively through Control RV valve, blower fan and PTC；Described driving chip connects BOOSTPFC on-off circuit and IPM module respectively；Rectifier bridge and BOOSTPFC on-off circuit connect an external PFC reactor, and the outfan at BOOSTPFC on-off circuit is parallel with built-in PFC capacitor；IPM module drives lower brachium pontis IGBTN pole binding post NU/NV/NW carry out current sample by resistance, and after being amplified by amplifier, feed back to main control chip；IGBT in IPM module is integrated in driving chip, and main control chip output pwm control signal controls IGBT conducting and cut-off.
It is further: described main control chip adopts microcontroller TMP86FH09NG.
Described driving chip adopts FAN4056.
Described compressor adopts DC brushless motor；Blower fan adopts 1 grade of AC blower fan, simultaneously need to the start-up capacitance of 1.5uF.
Switching Power Supply is exported DC bus powered by PFC, and the power of Switching Power Supply is 15W, has two-way output winding；One road winding is isolated windings, thering is provided isolation 12V voltage to the relay of PTC, RV valve, blower fan, provide isolation 5V voltage to main control chip simultaneously, another road winding is not isolated windings, there is provided 15V voltage to BOOSTPFC on-off circuit, IPM module, provide 3.3V voltage to driving chip simultaneously.
Described isolation communication adopts the I/O communication of isolation.
Described amplifier adopts 1630D amplifier.
The main control chip break-make by 16A Control PTC.
The invention has the beneficial effects as follows:
1, adopting before on the basis of single resistor current sampling, selecting sample rate the soonest up to 2.5uS, the internal main control chip containing high speed operation amplifier, adopt two-way or Multi-path synchronous clocked flip AD Sampling techniques,
Detect the size of phase current in real time, thus realizing electric current control and protection.
2, main control chip output pwm control signal controls IGBT conducting and cut-off, adopts space voltage vector
Two PWM in modulation technique, thus the loss of switching power tube is greatly reduced, the efficiency of the bigger system that improves.
3, controlling motor torque constant magnitude, thus reducing the pulsation of torque, therefore reducing noise.
Accompanying drawing explanation
Fig. 1 is principle of the invention block diagram；
Fig. 2 is IPM inside modules logical circuitry；
Fig. 3 is current sampling circuit figure；
Fig. 4 is motor-field profile chart.
Detailed description of the invention
As depicted in figs. 1 and 2, a kind of integral compressor controls the intelligent controller of converter plant an outer machine panel, and external ac power source connects outer machine panel by electromagnetic interface filter, and outer machine panel is connected to RV valve, compressor and blower fan.Complete machine indoor set of the present invention is powered, and outer owner is controlled and drives integrator；Independent filtering is adopted to control, it is possible to more effective suppression is because of the interference source in line voltage and circuit network.
Outer machine panel includes main control chip, driving chip, Switching Power Supply, rectifier bridge, BOOSTPFC on-off circuit and IPM module；It is connected by isolation communication between main control chip with driving chip；External ac power source connects rectifier bridge by electromagnetic interface filter, electric fuse and PTC(critesistor it is connected with in turn) between electromagnetic interface filter and rectifier bridge, commutator connects BOOSTPFC on-off circuit, and BOOST on-off circuit connects IPM module, and IPM module connects compressor；Main control chip is respectively through Control RV valve (cross valve), blower fan and PTC；Driving chip connects BOOSTPFC on-off circuit and IPM module respectively；Rectifier bridge and BOOSTPFC on-off circuit connect an external PFC reactor, and the outfan at BOOSTPFC on-off circuit is parallel with built-in PFC capacitor；PFC electric capacity is built-in and reactor is external, is more beneficial for the assembling of product, because PFC reactor volume is relatively large, external assembling can strengthen the reliability of product.IPM module drives lower brachium pontis
IGBTN pole binding post NU/NV/NW carries out current sample by resistance, and after being amplified by amplifier, feeds back to main control chip；IGBT in IPM module is integrated in driving chip, and main control chip output pwm control signal controls IGBT conducting and cut-off.
Main control chip adopts microcontroller TMP86FH09NG, is connected to EEPROM.Containing high speed operation amplifier inside microcontroller TMP86FH09NG, adopting two-way or Multi-path synchronous clocked flip AD Sampling techniques, detecting the size of phase current in real time, thus realizing electric current control and protection.Driving chip adopts FAN4056, is connected to EEPROM.The I/O communication adopting isolation between microcontroller TMP86FH09NG and FAN4056 carries out communication.
Compressor adopts DC brushless motor；Blower fan adopts 1 grade of AC blower fan, simultaneously need to the start-up capacitance of 1.5uF.The main control chip break-make by 16A Control PTC.
Switching Power Supply is exported DC bus powered by PFC, and Switching Power Supply has 15W two-way output winding；One road winding is isolated windings, thering is provided isolation 12V voltage to the relay of PTC, RV valve, blower fan, provide isolation 5V voltage to main control chip simultaneously, another road winding is not isolated windings, there is provided 15V voltage to BOOSTPFC on-off circuit, IPM module, provide 3.3V voltage to driving chip simultaneously.
As it is shown on figure 3, IPM module drives lower brachium pontis IGBTN pole binding post NU/NV/NW carry out current sample by resistance, and after being amplified by 1630D amplifier, feed back to main control chip.
Rotor main magnetic pole is produced to increase most magnetic action such as Fig. 4 by the direct-axis component Fad of armature magnetomotive force, and a magnetic state scope, armature magnetomotive force is just starting as maximum degaussing, and then degaussing magnetomotive force is gradually reduced；I, II magnetic state time neither degaussing do not increase magnetic yet；In rear half magnetic state, increase magnetic be gradually increased, finally reach maximum.Increase magnetic and the magnetomotive size of degaussing equal to armature synthesis magnetomotive force Fa projection on rotor magnetic pole axis.Relatively do not increase magnetic and degaussing is reacted with under 120 degree of type of drive, reduce that the motor feels hot, improve electrical machinery life.
Invention software is supported: dc bus overvoltage/under-voltage protection, PFC overcurrent protection, compressor overcurrent protection, temperature protection etc.；Hardware is supported: PFC overcurrent protection, compressor overcurrent protection.
The present invention is adopting at present on the basis of single resistor current sampling, select sample rate the fastest up to
2.5uS, the internal control chip containing high speed operation amplifier, adopting two-way or Multi-path synchronous clocked flip AD Sampling techniques, detecting the size of phase current in real time, thus realizing electric current control and protection.Main control chip output pwm control signal controls IGBT conducting and cut-off, adopts two PWM in space voltage vector modulation technology, thus the loss of switching power tube is greatly reduced, and the efficiency of the bigger system that improves.
Controlling motor torque constant magnitude, thus reducing the pulsation of torque, therefore reducing noise.The driving side of motor
Formula is from AC frequency conversion to DC speed regulation；Refrigeration thermal velocity is fast, and the basis of good comfortableness realizes frequency conversion
During starting of air conditioner, circuit is not had big rush of current.
Claims (8)
1. integral compressor controls an intelligent controller for converter plant, and including outer machine panel, external ac power source connects outer machine panel by electromagnetic interface filter, and outer machine panel is connected to RV valve, compressor and blower fan；Described outer machine panel includes main control chip, driving chip, Switching Power Supply, rectifier bridge, BOOSTPFC on-off circuit and IPM module；It is connected by isolation communication between main control chip with driving chip；External ac power source connects rectifier bridge by electromagnetic interface filter, is connected with electric fuse and PTC between electromagnetic interface filter and rectifier bridge in turn, and commutator connects BOOSTPFC on-off circuit, and BOOST on-off circuit connects IPM module, and IPM module connects compressor；Main control chip is respectively through Control RV valve, blower fan and PTC；Described driving chip connects BOOSTPFC on-off circuit and IPM module respectively；It is characterized in that: rectifier bridge and BOOSTPFC on-off circuit connect an external PFC reactor, and the outfan at BOOSTPFC on-off circuit is parallel with built-in PFC capacitor；IPM module drives lower brachium pontis IGBTN pole binding post NU/NV/NW carry out current sample by resistance, and after being amplified by amplifier, feed back to main control chip；IGBT in IPM module is integrated in driving chip, and main control chip output pwm control signal controls conducting and the cut-off of IGBT.
2. a kind of integral compressor according to claim 1 controls the intelligent controller of converter plant；It is characterized in that: described main control chip adopts microcontroller TMP86FH09NG.
3. a kind of integral compressor according to claim 1 controls the intelligent controller of converter plant；It is characterized in that: described driving chip adopts FAN4056.
4. a kind of integral compressor according to claim 1 controls the intelligent controller of converter plant；It is characterized in that: described compressor adopts DC brushless motor；Blower fan adopts 1 grade of AC blower fan, simultaneously need to the start-up capacitance of 1.5uF.
5. a kind of integral compressor according to claim 1 controls the intelligent controller of converter plant；It is characterized in that: Switching Power Supply is exported DC bus powered by PFC, the power of Switching Power Supply is 15W, has two-way output winding；One road winding is isolated windings, thering is provided isolation 12V voltage to the relay of PTC, RV valve, blower fan, provide isolation 5V voltage to main control chip simultaneously, another road winding is not isolated windings, there is provided 15V voltage to BOOSTPFC on-off circuit, IPM module, provide 3.3V voltage to driving chip simultaneously.
6. a kind of integral compressor according to claim 1 controls the intelligent controller of converter plant；It is characterized in that: described isolation communication adopts the I/O communication of isolation.
7. a kind of integral compressor according to claim 1 controls the intelligent controller of converter plant；It is characterized in that: described amplifier adopts 1630D amplifier.
8. a kind of integral compressor according to claim 1 controls the intelligent controller of converter plant；It is characterized in that: the main control chip break-make by 16A Control PTC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510721457.6A CN105737326A (en) | 2015-10-30 | 2015-10-30 | Intelligent controller of frequency converting control device of integrated compressor |
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| CN201510721457.6A CN105737326A (en) | 2015-10-30 | 2015-10-30 | Intelligent controller of frequency converting control device of integrated compressor |
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| CN105737326A true CN105737326A (en) | 2016-07-06 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481537A (en) * | 2016-11-25 | 2017-03-08 | 广东美的制冷设备有限公司 | The control method of compressor, device and household electrical appliance |
| CN107678334A (en) * | 2017-09-25 | 2018-02-09 | 四川长虹电器股份有限公司 | The MCU chip of built-in amplifier and its application on frequency conversion refrigerator |
| CN108988625A (en) * | 2018-06-19 | 2018-12-11 | 珠海格力电器股份有限公司 | Integrated structure of drive controller, drive controller and air conditioner |
| CN109520080A (en) * | 2018-11-08 | 2019-03-26 | 广东美的制冷设备有限公司 | Air conditioner and its double-core control method and computer readable storage medium |
| CN110601549A (en) * | 2018-06-13 | 2019-12-20 | 重庆美的制冷设备有限公司 | High-integration intelligent power module and electrical equipment |
| CN110601550A (en) * | 2018-06-13 | 2019-12-20 | 重庆美的制冷设备有限公司 | High-integration intelligent power module and air conditioner |
| CN110601554A (en) * | 2018-06-13 | 2019-12-20 | 重庆美的制冷设备有限公司 | High-integration intelligent power module and electrical equipment |
| CN110594987A (en) * | 2018-06-13 | 2019-12-20 | 广东美的制冷设备有限公司 | Air conditioner and integrated air conditioner controller |
| CN110749071A (en) * | 2018-07-24 | 2020-02-04 | 广东美的制冷设备有限公司 | Electric control assembly and air conditioner |
| CN113572134A (en) * | 2021-07-08 | 2021-10-29 | 西安电子科技大学芜湖研究院 | PTC software and hardware dual overcurrent protection circuit system |
| CN116557283A (en) * | 2023-07-10 | 2023-08-08 | 深圳艾为电气技术有限公司 | Current sampling precision control method and device for electric compressor controller |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106481537B (en) * | 2016-11-25 | 2018-11-27 | 广东美的制冷设备有限公司 | Control method, device and the household electrical appliance of compressor |
| CN106481537A (en) * | 2016-11-25 | 2017-03-08 | 广东美的制冷设备有限公司 | The control method of compressor, device and household electrical appliance |
| CN107678334A (en) * | 2017-09-25 | 2018-02-09 | 四川长虹电器股份有限公司 | The MCU chip of built-in amplifier and its application on frequency conversion refrigerator |
| CN107678334B (en) * | 2017-09-25 | 2020-04-28 | 四川长虹电器股份有限公司 | MCU chip with built-in operational amplifier and application thereof in variable frequency refrigerator |
| CN110601549A (en) * | 2018-06-13 | 2019-12-20 | 重庆美的制冷设备有限公司 | High-integration intelligent power module and electrical equipment |
| CN110601550A (en) * | 2018-06-13 | 2019-12-20 | 重庆美的制冷设备有限公司 | High-integration intelligent power module and air conditioner |
| CN110601554A (en) * | 2018-06-13 | 2019-12-20 | 重庆美的制冷设备有限公司 | High-integration intelligent power module and electrical equipment |
| CN110594987A (en) * | 2018-06-13 | 2019-12-20 | 广东美的制冷设备有限公司 | Air conditioner and integrated air conditioner controller |
| CN108988625A (en) * | 2018-06-19 | 2018-12-11 | 珠海格力电器股份有限公司 | Integrated structure of drive controller, drive controller and air conditioner |
| CN110749071B (en) * | 2018-07-24 | 2024-09-27 | 广东美的制冷设备有限公司 | Electric control assembly and air conditioner |
| CN110749071A (en) * | 2018-07-24 | 2020-02-04 | 广东美的制冷设备有限公司 | Electric control assembly and air conditioner |
| CN109520080A (en) * | 2018-11-08 | 2019-03-26 | 广东美的制冷设备有限公司 | Air conditioner and its double-core control method and computer readable storage medium |
| CN109520080B (en) * | 2018-11-08 | 2021-08-13 | 广东美的制冷设备有限公司 | Air conditioner, dual-core control method thereof and computer readable storage medium |
| CN113572134A (en) * | 2021-07-08 | 2021-10-29 | 西安电子科技大学芜湖研究院 | PTC software and hardware dual overcurrent protection circuit system |
| CN116557283A (en) * | 2023-07-10 | 2023-08-08 | 深圳艾为电气技术有限公司 | Current sampling precision control method and device for electric compressor controller |
| CN116557283B (en) * | 2023-07-10 | 2023-09-29 | 深圳艾为电气技术有限公司 | Current sampling precision control method and device for electric compressor controller |
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Application publication date: 20160706 |