CN108592168A - Frequency conversion heat pump driver energy efficiency control circuit and energy efficiency controlling method - Google Patents
Frequency conversion heat pump driver energy efficiency control circuit and energy efficiency controlling method Download PDFInfo
- Publication number
- CN108592168A CN108592168A CN201810298652.6A CN201810298652A CN108592168A CN 108592168 A CN108592168 A CN 108592168A CN 201810298652 A CN201810298652 A CN 201810298652A CN 108592168 A CN108592168 A CN 108592168A
- Authority
- CN
- China
- Prior art keywords
- channel
- power
- frequency conversion
- heat pump
- conversion heat
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1096—Arrangement or mounting of control or safety devices for electric heating systems
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Rectifiers (AREA)
- Dc-Dc Converters (AREA)
Abstract
The present invention provides a kind of frequency conversion heat pump driver energy efficiency control circuit and energy efficiency controlling methods, the power of frequency conversion heat pump driver complete machine is improved by predetermined power threshold value, energy efficiency control circuit includes sampling unit, main control chip, PFC channel control unit and Power Factor Correction Control chip；Sampling unit is used for the output current and output voltage of the real time measure frequency conversion heat pump driver, main control chip is for calculating present output power, and present output power is compared judgement with predetermined power threshold value, single, double or triple channel operating mode is taken according to multilevel iudge output control PFC channel control unit, and then controls the operating mode of Power Factor Correction Control chip.The present invention uses integrated design on hardware, in conjunction with energy efficiency controlling method, improves the power utilization of frequency conversion heat pump driver complete machine, has the characteristics that save electric energy, be easily installed.
Description
Technical field
The present invention relates to a kind of control circuits of electric heating system technical field, are a kind of frequency conversion heat pumps more specifically
Driver energy efficiency control circuit and energy efficiency controlling method.
Background technology
High-power applications system such as electric heating system, kernel component are the driver of compressor variable frequency heat pump, are needed
PFC (PFC) refers to improve power factor (PF) and harmonic wave, power factor between effective power and total power consumption
Relationship, that is, effective power divided by total power consumption ratio.Substantially power factor (PF) can weigh frequency conversion heat pump driver
It is higher to represent its electric power utilization rate when power factor (PF) value is bigger for the degree that front end power input portion is used effectively.
Power factor correction circuit, frequency conversion heat is largely not yet added in the front end power input of existing frequency conversion heat pump driver
The front end power supply of pump controller always exports effective power and there was only 50% to 60% or so, the power efficiency of frequency conversion heat pump driver compared with
It is low.It is also individually to separate design with power input power factor correction circuit in addition, even if frequency conversion heat pump driver is added
, circuit occupy it is larger, inconvenience installation.Therefore, it is necessary to design one kind having circuit of power factor correction (PFC) one
Body frequency conversion heat pump driver efficiency control technology scheme, improves the power utilization of frequency conversion heat pump driver complete machine, and is convenient for
Installation.
Invention content
It is an object of the invention to be directed to the above problem existing for existing frequency conversion heat pump driver energy efficiency control circuit, propose
A kind of safe and reliable frequency conversion heat pump driver energy efficiency control circuit and energy efficiency controlling method.
Technical solution proposed by the invention is as follows：
A kind of frequency conversion heat pump driver energy efficiency control circuit improves frequency conversion heat pump driver complete machine by predetermined power threshold value
Power, the energy efficiency control circuit include sampling unit, main control chip, PFC channel control unit and power because
Number correcting controlling chip；Wherein：
The sampling unit is used for the output current and output voltage of the real time measure frequency conversion heat pump driver, and by the change
The output current and output voltage of frequency heat pump driver input the main control chip；
The main control chip is used to calculate frequency conversion heat pump driver present output power according to the input of the sampling unit,
And present output power is compared judgement with power threshold, the defeated of the main control chip is adjusted according to multilevel iudge result
Go out；
The PFC channel control unit includes that the first control channel, the second control channel and third control are logical
Road, for according to work(in the first control channel of output adjustment, the second control channel and third control channel of the main control chip
Rate device working condition；
The Power Factor Correction Control chip is used for according to the first of the PFC channel control unit the control
The working condition switching control pattern of power device in channel processed, the second control channel and third control channel.
In the frequency conversion heat pump driver energy efficiency control circuit of the present invention, the frequency conversion heat pump driver includes inverter bridge driving
The output current of control unit and inverter bridge unit, the frequency conversion heat pump driver is that sampling unit measures the defeated of the inverter bridge
Go out electric current, the output voltage of the frequency conversion heat pump driver is sampling unit measured according to the output frequency of the inverter bridge described in
The output voltage of inverter bridge driving circuit.
The present invention frequency conversion heat pump driver energy efficiency control circuit in, the main control chip respectively with the power factor school
The first control channel, the second control channel and the third control channel of positive channel control unit are electrically connected；According to current output
Power is switched on or switched off and first control channel, the second control with power threshold multilevel iudge as a result, the main control chip
The connection in channel and third control channel.
The present invention frequency conversion heat pump driver energy efficiency control circuit in, the Power Factor Correction Control chip respectively with institute
The first control channel, the second control channel and third control channel for stating PFC channel control unit are electrically connected,
According to work(in the first control channel, the second control channel and third control channel of the PFC channel control unit
The working condition of rate device, Power Factor Correction Control chip switch single, double between triple channel control model.
In the frequency conversion heat pump driver energy efficiency control circuit of the present invention, when the present output power is less than or equal to 35%
Predetermined power threshold value, the main control chip connects first passage, and disconnects the connection being connect with second channel and third channel,
Power device in the first passage works normally, and the power device in the second channel and third channel is stopped,
The Power Factor Correction Control chip switches to single channel control pattern；
When the present output power is more than 35% predetermined power threshold value, and the predetermined power less than or equal to 85%
Value, the main control chip connects first passage and second channel, and disconnects the connection with third channel, the first passage and the
Power device in two channels works normally, and the power device in the third channel is stopped, the PFC
Control chip switches to binary channels control model；
When the present output power is more than 85% predetermined power threshold value, the main control chip connects first passage, the
Two channels and third channel, the power device normal work in the first passage, in the second channel and third channel
Power device is stopped, and the Power Factor Correction Control chip switches to triple channel control model.
In the frequency conversion heat pump driver energy efficiency control circuit of the present invention, the power device include for boost inductor and
Booster diode and power MOSEF.
A kind of frequency conversion heat pump driver energy efficiency control circuit improves frequency conversion heat pump driver complete machine by predetermined power threshold value
Power, including sampling unit, main control chip, triple channel pfc circuit；
The sampling unit is used for the output current and output voltage of the real time measure frequency conversion heat pump driver, and by the change
The output current and output voltage of frequency heat pump driver input the main control chip；
The main control chip is used to calculate frequency conversion heat pump driver present output power according to the input of the sampling unit,
Present output power is compared judgement with power threshold, and according to main control chip control described three described in multilevel iudge result
Channel pfc circuit switches single, double between triple channel operating mode：
When the present output power is less than or equal to 35% predetermined power threshold value, the main control chip control described three
Channel pfc circuit switches to single channel control pattern；
When the present output power is more than 35% predetermined power threshold value, and the predetermined power less than or equal to 85%
Value, the main control chip control the triple channel pfc circuit and switch to binary channels control model；
When the present output power is more than 85% predetermined power threshold value, the main control chip controls the triple channel
Pfc circuit switches to triple channel control model.
A kind of frequency conversion heat pump driver energy efficiency controlling method improves frequency conversion heat pump driver complete machine by predetermined power threshold value
Power, the frequency conversion heat pump driver includes triple channel pfc circuit, be the described method comprises the following steps：
The output current and output voltage of S1, the real time measure frequency conversion heat pump driver；
S2, frequency conversion heat pump driver output current and output voltage according to the measurement calculate frequency conversion heat pump driver
Present output power；
S3, present output power is compared judgement with predetermined power threshold value, be less than when the present output power or
Predetermined power value equal to 35% executes step S4；When predetermined power value of the present output power more than 35%, and it is less than
Or the predetermined power value equal to 85%, execute step S5；When the present output power is more than 85% predetermined power value, execution
Step S6；
S4, the frequency conversion heat pump driver switch to single channel pfc circuit operating mode；
S5, the frequency conversion heat pump driver switch to binary channels pfc circuit operating mode；
S6, the frequency conversion heat pump driver switch to triple channel pfc circuit operating mode.
Above-mentioned technical proposal improves the power of frequency conversion heat pump driver complete machine using predetermined power threshold value, passes through the real time measure
The output current and output voltage of frequency conversion heat pump driver simultaneously calculate present output power, by present output power and predetermined power
Threshold value is compared judgement, and single, double or triple channel is taken according to the pfc circuit of multilevel iudge output control frequency conversion heat pump driver
Operating mode.The present invention effectively improves frequency conversion heat pump driver complete machine power utilization using pfc circuit, and power efficiency can reach
95.5%.In addition, introducing triple channel interleaved PFC circuit, circuit performance can be optimized, reduce the ripple of bus current, reduced
The stress of power device is substantially reduced the size of the boost inductance of high-power PFC, and reduces to the power MOSEF of PFC and boosting
The requirement of diode improves the pfc circuit service life.The present invention integrated inverter bridge drive control circuit, PFC on hardware
Channel control circuit, current sampling circuit improve the power utilization of frequency conversion heat pump driver complete machine in conjunction with energy efficiency controlling method
Rate has the characteristics that energy conservation and environmental protection, is easily installed.
Description of the drawings
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing：
Fig. 1 shows the high-level schematic functional block diagram of the frequency conversion heat pump driver energy efficiency control circuit of one embodiment of the invention；
Fig. 2 shows the circuit diagrams of the sampling unit of one embodiment of the invention；
Fig. 3 shows the inverter bridge drive control unit of one embodiment of the invention and the circuit diagram of inverter bridge unit；
Fig. 4 shows the circuit diagram of the main control chip of one embodiment of the invention；
Fig. 5 shows the circuit diagram of the PFC channel control units of one embodiment of the invention；
Fig. 6 shows the circuit diagram of the PFC main control chips of one embodiment of the invention.
Specific implementation mode
In order to keep the technical purpose, technical solution and technique effect of the present invention apparent, so as to people in the art
Member understands and implements the present invention, and the present invention will be further described in detail below in conjunction with the accompanying drawings and the specific embodiments.
As shown in Figure 1, Fig. 1 shows the function of the frequency conversion heat pump driver energy efficiency control circuit of the preferred embodiment of the present invention
Module diagram.The frequency conversion heat pump driver energy efficiency control circuit improves frequency conversion heat pump driver complete machine by predetermined power threshold value
Power, the energy efficiency control circuit include sampling unit, main control chip, PFC channel control unit and power because
Number correcting controlling chip.
In above-described embodiment, output current and output electricity of the sampling unit for the real time measure frequency conversion heat pump driver
Pressure, and the output current of the frequency conversion heat pump driver and output voltage are inputted into the main control chip；
The main control chip is used to calculate frequency conversion heat pump driver present output power according to the input of the sampling unit,
And present output power is compared judgement with power threshold, the defeated of the main control chip is adjusted according to multilevel iudge result
Go out；
The PFC channel control unit includes that the first control channel, the second control channel and third control are logical
Road, for according to work(in the first control channel of output adjustment, the second control channel and third control channel of the main control chip
Rate device working condition；
The Power Factor Correction Control chip is used for according to the first of the PFC channel control unit the control
The working condition switching control pattern of power device in channel processed, the second control channel and third control channel.
As shown in Fig. 2, the circuit diagram of the sampling unit for one embodiment of the invention.In one embodiment, the frequency conversion
Heat pump driver includes inverter bridge drive control unit and inverter bridge unit (Fig. 3), sampling unit the real time measure inverter bridge it is defeated
Go out electric current, the output current of the as described frequency conversion heat pump driver, and is surveyed according to the output frequency sampling unit of the inverter bridge
Determine the output voltage of inverter bridge driving circuit, the output voltage of the as described frequency conversion heat pump driver.Sampling unit will be adopted in real time
The output current and output voltage of collection input main control chip.
As shown in figure 4, the circuit diagram of the main control chip for one embodiment of the invention.The main control chip respectively with the work(
The first control channel, the second control channel and the third control channel of rate factor correcting channel control unit are electrically connected；According to
Present output power and power threshold multilevel iudge as a result, the main control chip be switched on or switched off with first control channel,
The connection of second control channel and third control channel.In the present embodiment, main control chip model TMS320F28031.
As shown in figure 5, for the circuit diagram of one embodiment of the invention PFC channel control units.The PFC is logical
Road control unit be triple channel pfc circuit, respectively the first control channel, the second control channel and third control channel, according to
Corresponding power device boosting in the first control channel of output adjustment of main control chip, the second control channel and third control channel
The working condition of inductance, power MOSEF and booster diode.In the present embodiment, PFC channel control units use model
LTV817B triple channel pfc circuits.Triple channel interleaving PFC circuit is introduced, circuit performance can be optimized, reduce the line of bus current
Wave reduces the stress of power device, reduces parts selection difficulty and circuit design difficulty, and can effectively reduce the humorous of input current
Wave component is reduced to communication, and the interference of automation equipment and other equipment improves the stability of complete machine.
As shown in fig. 6, the circuit diagram of the PFC main control chips of one embodiment of the invention.The Power Factor Correction Control core
Piece respectively with the first control channel, the second control channel and third control channel of the PFC channel control unit
It is electrically connected, according to the first control channel, the second control channel and third control of the PFC channel control unit
The working condition of power device in channel processed, Power Factor Correction Control chip are cut single, double between triple channel control model
It changes.In the present embodiment, chip is controlled as PFC using the triple channel alternating expression of model FAN9673 control chip, channel
120 ° of phase difference.
Preferably, when the present output power is less than or equal to 35% predetermined power threshold value, the main control chip connects
Logical first passage, and the connection being connect with second channel and third channel is disconnected, the power device in the first passage is normal
It works, the power device in the second channel and third channel is stopped, the Power Factor Correction Control chip switching
To single channel control pattern.When complete machine actual power is smaller, by closing extra channel, the hair of corresponding power device is reduced
Thermal losses improves the effective rate of utilization of complete machine power.
When the present output power is more than 35% predetermined power threshold value, and the predetermined power less than or equal to 85%
Value, the main control chip connects first passage and second channel, and disconnects the connection with third channel, the first passage and the
Power device in two channels works normally, and the power device in the third channel is stopped, the PFC
Control chip switches to binary channels control model.
When the present output power is more than 85% predetermined power threshold value, the main control chip connects first passage, the
Two channels and third channel, the power device normal work in the first passage, in the second channel and third channel
Power device is stopped, and the Power Factor Correction Control chip switches to triple channel control model.After connecting three channels,
The circuit in three channels divides equally general power, can reduce the PFC boost inductance to every road, and reduces power MOSEF and boosting two
The current stress requirement of pole pipe, and then reduce parts selection difficulty and circuit design difficulty.
In one embodiment, frequency conversion heat pump driver energy efficiency control circuit improves frequency conversion heat pump by predetermined power threshold value and drives
The power of dynamic device complete machine, main control chip can complete Power Factor Correction Control chip and PFC channel control unit
Function, and substitute Power Factor Correction Control chip, realize frequency conversion heat pump driving power integrated power factor correcting circuit
Integrated design.Specifically, the present embodiment frequency conversion heat pump driver energy efficiency control circuit includes sampling unit, main control chip, three
Channel pfc circuit.The sampling unit is used for the output current and output voltage of the real time measure frequency conversion heat pump driver, and by institute
The output current and output voltage for stating frequency conversion heat pump driver input the main control chip；The main control chip is used for according to
The input of sampling unit calculates frequency conversion heat pump driver present output power, and present output power is compared with power threshold
Judge, and the triple channel pfc circuit is controlled in single, double and triple channel Working mould according to main control chip described in multilevel iudge result
Switch between formula：When the present output power is less than or equal to 35% predetermined power threshold value, the main control chip controls institute
It states triple channel pfc circuit and switches to single channel operating mode；When the present output power be more than 35% predetermined power threshold value,
And the predetermined power value less than or equal to 85%, the main control chip control the triple channel pfc circuit and switch to binary channels work
Operation mode；When the present output power is more than 85% predetermined power threshold value, the main control chip controls the triple channel PFC
Circuit switches to triple channel operating mode.
According to above-mentioned technical proposal, the present invention also provides a kind of frequency conversion heat pump driver energy efficiency controlling methods, by pre-
If power threshold improves the power of frequency conversion heat pump driver complete machine, the frequency conversion heat pump driver includes triple channel pfc circuit, institute
The method of stating includes the following steps：
The output current and output voltage of S1, the real time measure frequency conversion heat pump driver；
S2, frequency conversion heat pump driver output current and output voltage according to the measurement calculate frequency conversion heat pump driver
Present output power；
S3, present output power is compared judgement with predetermined power threshold value, be less than when the present output power or
Predetermined power value equal to 35% executes step S4；When predetermined power value of the present output power more than 35%, and it is less than
Or the predetermined power value equal to 85%, execute step S5；When the present output power is more than 85% predetermined power value, execution
Step S6；
S4, the frequency conversion heat pump driver switch to single channel pfc circuit operating mode；
S5, the frequency conversion heat pump driver switch to binary channels pfc circuit operating mode；
S6, the frequency conversion heat pump driver switch to triple channel pfc circuit operating mode.
Above-mentioned technical proposal improves the power of frequency conversion heat pump driver complete machine using predetermined power threshold value, passes through the real time measure
The output current and output voltage of frequency conversion heat pump driver simultaneously calculate present output power, by present output power and predetermined power
Threshold value is compared judgement, and single, double or triple channel is taken according to the pfc circuit of multilevel iudge output control frequency conversion heat pump driver
Operating mode.The present invention effectively improves frequency conversion heat pump driver complete machine power utilization using pfc circuit, and complete machine power efficiency can
Reach 95.5%.In addition, introducing triple channel interleaved PFC circuit, circuit performance can be optimized, reduce the ripple of bus current,
The stress for reducing power device, is substantially reduced the size of the boost inductance of high-power PFC, and reduce to the power MOSEF of PFC and
The requirement of booster diode improves the pfc circuit service life.The present invention integrated inverter bridge drive control electricity on hardware
Road, PFC channel control circuits, current sampling circuit improve the power of frequency conversion heat pump driver complete machine in conjunction with energy efficiency controlling method
Utilization rate has the characteristics that energy conservation and environmental protection, is easily installed.
It should be understood that although the present invention is illustrated by specific embodiment, those skilled in the art should
Understand, without departing from the present invention, various transformation and equivalent substitute can also be carried out to the present invention.Therefore, originally
Invention is not limited to disclosed specific embodiment, and should be all real in the claims in the present invention protection domain including falling into
Apply mode.
Claims (8)
1. a kind of frequency conversion heat pump driver energy efficiency control circuit, which is characterized in that improve frequency conversion heat pump by predetermined power threshold value
The power of driver complete machine, the energy efficiency control circuit include sampling unit, main control chip, PFC channel control list
Member and Power Factor Correction Control chip；Wherein：
The sampling unit is used for the output current and output voltage of the real time measure frequency conversion heat pump driver, and the frequency conversion is hot
The output current and output voltage of pump controller input the main control chip；
The main control chip is used to calculate frequency conversion heat pump driver present output power according to the input of the sampling unit, and will
Present output power is compared judgement with power threshold, and the output of the main control chip is adjusted according to multilevel iudge result；
The PFC channel control unit includes the first control channel, the second control channel and third control channel,
For power device in the first control channel of output adjustment, the second control channel and third control channel according to the main control chip
Part working condition；
The Power Factor Correction Control chip is used for logical according to the first of the PFC channel control unit the control
The working condition switching control pattern of power device in road, the second control channel and third control channel.
2. frequency conversion heat pump driver energy efficiency control circuit according to claim 1, which is characterized in that the frequency conversion heat pump drives
Dynamic device includes inverter bridge drive control unit and inverter bridge unit, and the output current of the frequency conversion heat pump driver is sampling unit
Measure the output current of the inverter bridge, the output voltage of the frequency conversion heat pump driver is sampling unit according to the inverter bridge
Output frequency measure the output voltage of the inverter bridge driving circuit.
3. frequency conversion heat pump driver energy efficiency control circuit according to claim 1, which is characterized in that the main control chip point
It is not electrical with the first control channel, the second control channel and third control channel of the PFC channel control unit
Connection；It is switched on or switched off and described first according to present output power and power threshold multilevel iudge as a result, the main control chip
The connection of control channel, the second control channel and third control channel.
4. frequency conversion heat pump driver energy efficiency control circuit according to claim 3, which is characterized in that the power factor school
Positive control chip respectively with the first control channel, the second control channel and third of the PFC channel control unit
Control channel is electrically connected, according to the first control channel of the PFC channel control unit, the second control channel
With the working condition of power device in third control channel, Power Factor Correction Control chip controls mould in single, double and triple channel
Switch between formula.
5. frequency conversion heat pump driver energy efficiency control circuit according to claim 4, which is characterized in that
When the present output power is less than or equal to 35% predetermined power threshold value, the main control chip connects first passage,
And the connection that is connect with second channel and third channel is disconnected, and the power device in the first passage works normally, and described the
Power device in two channels and third channel is stopped, and the Power Factor Correction Control chip switches to single channel control
Pattern；
When the present output power is more than 35% predetermined power threshold value, and the predetermined power value less than or equal to 85%, institute
It states main control chip and connects first passage and second channel, and disconnect the connection with third channel, the first passage and second leads to
Power device in road works normally, and the power device in the third channel is stopped, the Power Factor Correction Control
Chip switches to binary channels control model；
When the present output power is more than 85% predetermined power threshold value, the main control chip connection first passage, second are led to
Road and third channel, the power device normal work in the first passage, the power in the second channel and third channel
Device is stopped, and the Power Factor Correction Control chip switches to triple channel control model.
6. frequency conversion heat pump driver energy efficiency control circuit according to claim 5, which is characterized in that the power device packet
It includes for boost inductor and booster diode and power MOSEF.
7. a kind of frequency conversion heat pump driver energy efficiency control circuit, which is characterized in that improve frequency conversion heat pump by predetermined power threshold value
The power of driver complete machine, including sampling unit, main control chip, triple channel pfc circuit；
The sampling unit is used for the output current and output voltage of the real time measure frequency conversion heat pump driver, and the frequency conversion is hot
The output current and output voltage of pump controller input the main control chip；
The main control chip is used to calculate frequency conversion heat pump driver present output power according to the input of the sampling unit, will work as
Preceding output power is compared judgement with power threshold, and controls the triple channel according to main control chip described in multilevel iudge result
Pfc circuit switches single, double between triple channel operating mode：
When the present output power is less than or equal to 35% predetermined power threshold value, the main control chip controls the triple channel
Pfc circuit switches to single channel operating mode；
When the present output power is more than 35% predetermined power threshold value, and the predetermined power value less than or equal to 85%, institute
It states the main control chip control triple channel pfc circuit and switches to binary channels operating mode；
When the present output power is more than 85% predetermined power threshold value, the main control chip controls the triple channel PFC electricity
Road switches to triple channel operating mode.
8. a kind of frequency conversion heat pump driver energy efficiency controlling method, which is characterized in that improve frequency conversion heat pump by predetermined power threshold value
The power of driver complete machine, the frequency conversion heat pump driver includes triple channel pfc circuit, be the described method comprises the following steps：
The output current and output voltage of S1, the real time measure frequency conversion heat pump driver；
S2, frequency conversion heat pump driver output current and output voltage according to the measurement calculate working as frequency conversion heat pump driver
Preceding output power；
S3, present output power is compared judgement with predetermined power threshold value, when the present output power is less than or equal to
35% predetermined power value executes step S4；When predetermined power value of the present output power more than 35%, and it is less than or waits
In 85% predetermined power value, step S5 is executed；When the present output power is more than 85% predetermined power value, execution step
S6；
S4, the frequency conversion heat pump driver switch to single channel pfc circuit operating mode；
S5, the frequency conversion heat pump driver switch to binary channels pfc circuit operating mode；
S6, the frequency conversion heat pump driver switch to triple channel pfc circuit operating mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810298652.6A CN108592168A (en) | 2018-04-04 | 2018-04-04 | Frequency conversion heat pump driver energy efficiency control circuit and energy efficiency controlling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810298652.6A CN108592168A (en) | 2018-04-04 | 2018-04-04 | Frequency conversion heat pump driver energy efficiency control circuit and energy efficiency controlling method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108592168A true CN108592168A (en) | 2018-09-28 |
Family
ID=63624496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810298652.6A Pending CN108592168A (en) | 2018-04-04 | 2018-04-04 | Frequency conversion heat pump driver energy efficiency control circuit and energy efficiency controlling method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108592168A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102545582A (en) * | 2012-02-09 | 2012-07-04 | 华为技术有限公司 | Bridgeless power factor correction circuit and control method thereof |
| CN105790548A (en) * | 2016-04-08 | 2016-07-20 | 华中科技大学 | Three-channel interlaced PFC circuit for frequency converter and channel management method |
| CN206323325U (en) * | 2016-11-29 | 2017-07-11 | 广州视源电子科技股份有限公司 | Frequency conversion heat pump motor control circuit |
-
2018
- 2018-04-04 CN CN201810298652.6A patent/CN108592168A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102545582A (en) * | 2012-02-09 | 2012-07-04 | 华为技术有限公司 | Bridgeless power factor correction circuit and control method thereof |
| CN105790548A (en) * | 2016-04-08 | 2016-07-20 | 华中科技大学 | Three-channel interlaced PFC circuit for frequency converter and channel management method |
| CN206323325U (en) * | 2016-11-29 | 2017-07-11 | 广州视源电子科技股份有限公司 | Frequency conversion heat pump motor control circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104319761A (en) | Photovoltaic air conditioning system and photovoltaic air conditioner with same | |
| CN210468807U (en) | Frequency converter voltage sag protection device based on super capacitor energy storage | |
| CN104952667B (en) | A kind of electromagnetic switch intelligent controlling device suitable for low voltage power supply system | |
| CN202840661U (en) | Low standby power consumption electromagnetic oven circuit | |
| CN105353796A (en) | Refrigeration equipment and heating control circuit and heating control method of compressor of refrigeration equipment | |
| CN103036457B (en) | AC-DC converter | |
| CN102386790B (en) | High-efficiency energy-saving voltage-regulating rectifier used for motorcycle | |
| CN104811023A (en) | Variable frequency air conditioner compressor counter electromotive force protection circuit | |
| CN102684492B (en) | High power factor converter | |
| CN208675121U (en) | Alternating current-direct current input adaptive switching power circuit | |
| CN102305452B (en) | Control method of operating condition of PFC (Power Factor Corrector) module | |
| CN201878014U (en) | Feedback load energy-saving circuit for aging testing | |
| CN106162990A (en) | LED light device and method of work thereof | |
| CN108667323A (en) | Alternating current-direct current input adaptive switching power circuit | |
| CN203027136U (en) | Direct current socket | |
| CN102386800B (en) | Low-voltage heavy-current high-power pulse power supply | |
| CN204118735U (en) | Photovoltaic air conditioning system and photovoltaic air conditioner with same | |
| CN201282420Y (en) | HF switch power supply device | |
| CN108592168A (en) | Frequency conversion heat pump driver energy efficiency control circuit and energy efficiency controlling method | |
| CN102968068B (en) | Control circuit capable of achieving energy-saving working state | |
| CN103515977A (en) | Single-phase integral energy feedback device | |
| CN105186836A (en) | Power supply under-voltage protection method and protection circuit thereof | |
| CN102035390A (en) | Multi-path phase-shift parallel-connection direct current-to-direct current (DC-DC) conversion device and control method thereof | |
| CN206117317U (en) | Fountain controlling means | |
| CN104843568A (en) | Digital servo elevator driver |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180928 |