CN106787795B - A method of frequency changer circuit and its deviation with interleaving mode inhibit - Google Patents
A method of frequency changer circuit and its deviation with interleaving mode inhibit Download PDFInfo
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- CN106787795B CN106787795B CN201611165682.7A CN201611165682A CN106787795B CN 106787795 B CN106787795 B CN 106787795B CN 201611165682 A CN201611165682 A CN 201611165682A CN 106787795 B CN106787795 B CN 106787795B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M5/00—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/40—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC
- H02M5/42—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters
- H02M5/44—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters using discharge tubes or semiconductor devices to convert the intermediate DC into AC
- H02M5/453—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters using discharge tubes or semiconductor devices to convert the intermediate DC into AC using devices of a triode or transistor type requiring continuous application of a control signal
- H02M5/458—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters using discharge tubes or semiconductor devices to convert the intermediate DC into AC using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/12—Arrangements for reducing harmonics from AC input or output
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/14—Arrangements for reducing ripples from DC input or output
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of DC power input into DC power output
- H02M3/02—Conversion of DC power input into DC power output without intermediate conversion into AC
- H02M3/04—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters
- H02M3/10—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
- H02M3/158—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
- H02M3/1584—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load with a plurality of power processing stages connected in parallel
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0038—Circuits or arrangements for suppressing, e.g. by masking incorrect turn-on or turn-off signals, e.g. due to current spikes in current mode control
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of DC power input into DC power output
- H02M3/02—Conversion of DC power input into DC power output without intermediate conversion into AC
- H02M3/04—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters
- H02M3/10—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
- H02M3/158—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
- H02M3/1584—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load with a plurality of power processing stages connected in parallel
- H02M3/1586—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load with a plurality of power processing stages connected in parallel switched with a phase shift, i.e. interleaved
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
- Inverter Devices (AREA)
Abstract
A method of frequency changer circuit with interleaving mode and its deviation inhibit, by by busbar voltage VDCFourier's calculation value be compared with standard value after adjust the turn-on time of IGBT pipe, effectively reduce the inductance difference as reactor and caused by busbar voltage ripple, make busbar voltage VDCWaveform uniform smooth, guarantee that being input to the voltage stabilization of compressor effectively improves compressor noise, vibration problem and harmonic current problem to reduce the noise vibration of compressor.
Description
Technical field
The present invention relates to a kind of methods that frequency changer circuit with interleaving mode and its deviation inhibit.
Background technique
In the frequency control circuit of inverter air conditioner, there is a kind of FULL PAM control mode for being referred to as interleaving mode.Such as
Shown in Fig. 1, the circuit of the control mode includes diode rectifier bridge DB, for being direct current, the first reactance by AC rectification
Device L1, first diode D1With the first insulated gate bipolar transistor Q1Form the first boost chopper, the second reactor L2、
Second diode D2With the second insulated gate bipolar transistor Q2The second boost chopper is formed, reactor is for improving power
Factor, diode are used to AC rectification be direct current, keep waveform smoother, insulated gate bipolar transistor plays contactless
The effect of switch, the first insulated gate bipolar transistor Q1With the second insulated gate bipolar transistor Q2Alternate conduction, the first boosting
Chopper circuit, the second boost chopper and capacitor C form PAM (pulse amplitude modulation) circuit, and capacitor C makes DC voltage
More smooth, for intelligent power module for driving compressor of air conditioner motor MC, input intelligent power module is DC voltage
And control signal, output be variable ratio frequency changer pressure-variable power supply.
In the first reactor L1With the second reactor L2Inductance it is equal in the case where, for example: L1=L2=100 μ H, then
As the first insulated gate bipolar transistor Q1When conducting, the voltage waveform V at collector and emitter both endsL1, when the second insulated gate
Bipolar junction transistor Q2When conducting, the voltage waveform V at collector and emitter both endsL2With the voltage waveform V at the both ends capacitor CDC
As shown in Fig. 2, voltage waveform VDCIt is uniform.But the first reactor L1With the second reactor L2Inductance be to have tolerance model
It encloses, the margin of tolerance is usually ± 10%, so the first reactor L1With the second reactor L2Inductance there is always deviation,
For example: L1=100 μ H, L2In the case where=110 μ H, the first reactor L1The voltage waveform V at both endsL1, the second reactor L2Both ends
Voltage waveform VL2With the voltage waveform V at the both ends capacitor CDCAs shown in figure 3, the first reactor L1With the second reactor L2The two
Parameter error can make busbar voltage VDCRipple (ripple) is generated to cause to make the voltage unstability for being input to compressor
Compressor noise is big, vibration is big, in addition will cause primary current distortion, and harmonic wave increases, cause EMC evaluate in harmonic current comment
Valence is unqualified.
Summary of the invention
A kind of method that the present invention provides the frequency changer circuit with interleaving mode and its deviation inhibits, by adjusting insulated gate
The turn-on time of bipolar junction transistor, effectively reduce the inductance difference as reactor and caused by busbar voltage ripple,
Make busbar voltage VDCWaveform uniform smooth, guarantee to be input to the voltage stabilization of compressor, to reduce the noise of compressor
Vibration, is formed by VDCSmoothened, voltage is more stable, is effectively improved compressor noise, vibration problem and harmonic current
Problem.
In order to achieve the above object, the present invention provides a kind of frequency changer circuit with interleaving mode, includes:
Power supply U；
Diode rectifier bridge DB is electrically connected power supply U, for being direct current by AC rectification；
First boost chopper, it includes the first reactor L1, first diode D1With the first insulated gate bipolar crystal
Pipe Q1, the first reactor L1One end be electrically connected diode rectifier bridge DB the first output end a, the other end be electrically connected first
Diode D1Positive terminal, the first insulated gate bipolar transistor Q1Collector be electrically connected first diode D1Positive terminal,
The second output terminal b of emitter electric connection diode rectifier bridge DB；
Second boost chopper, it includes the second reactor L2, the second diode D2With the second insulated gate bipolar crystal
Pipe Q2, the second reactor L2One end be electrically connected diode rectifier bridge DB the first output end a, the other end be electrically connected second
Diode D2Positive terminal, the second insulated gate bipolar transistor Q2Collector be electrically connected the second diode D2Positive terminal,
The second output terminal b of emitter electric connection diode rectifier bridge DB；
Capacitor C, one end are electrically connected first diode D1With the second diode D2Negative pole end, the other end electrically connects
The second output terminal b for meeting diode rectifier bridge DB, for keeping DC voltage more smooth；
Intelligent power module, two input terminal are connected in the both ends capacitor C in parallel, and output end connection is air conditioner compressed
Machine motor MC, for driving compressor of air conditioner motor MC；
Controller MICOM, one input terminal are connected to the both ends capacitor C, for obtaining the bus electricity at the both ends capacitor C
Press VDC, the first insulated gate bipolar transistor Q is electrically connected in two output end1Gate pole and the second insulated gate bipolar
Transistor Q2Gate pole, for providing driving signal for insulated gate bipolar transistor.
The frequency changer circuit with interleaving mode also includes: transformation loop, two input terminal are connected in electricity in parallel
The both ends container C, output end be electrically connected controller MICOM, for by collected bus voltage value it is scaled after mention
Supply controller MICOM.
The present invention also provides a kind of deviation suppressing methods of frequency changer circuit with interleaving mode comprising the steps of:
Step S1, power supply U is opened, controller MICOM is respectively to the first insulated gate bipolar transistor Q1With the second insulation
Grid bipolar junction transistor Q2The driving signal of interleaving mode is provided；
It is applied to the first insulated gate bipolar transistor Q1Gate pole and the second insulated gate bipolar transistor Q2Drive on gate pole
1/2 wave amplitude of phase phase difference of dynamic signal pulse, turn-on time is identical, and occurrence frequency is identical；
Step S2, controller MICOM measures the busbar voltage V at the both ends capacitor CDC, and to busbar voltage VDCCarry out Fu
In leaf calculate；
Step S3, controller MICOM is by busbar voltage VDCFourier's calculation value be compared with standard value, if in Fu
Leaf calculation value is equal with standard value, then maintains at present to the first insulated gate bipolar transistor Q1With the second insulated gate bipolar crystalline substance
Body pipe Q2The turn-on time of the driving signal of offer is constant, if the numerical value of the even-times of Fourier's calculation value is greater than standard value,
Then carry out step S4；
Step S4, controller MICOM adjusts the first insulated gate bipolar transistor Q1Or the second insulated gate bipolar crystal
Pipe Q2Turn-on time, until busbar voltage VDCFourier's calculation value it is equal with standard value.
Controller MICOM adjusts the first insulated gate bipolar transistor Q1Or the second insulated gate bipolar transistor Q2Lead
The method of logical time comprises the steps of:
Controller MICOM reduces the first insulated gate bipolar transistor Q1Or the second insulated gate bipolar transistor Q2Lead
The logical time, if busbar voltage VDCFourier's calculation value of even-times be gradually reduced the value that is near the mark, then continue reduction by first
Insulated gate bipolar transistor Q1Or the second insulated gate bipolar transistor Q2Turn-on time, until busbar voltage VDCFu in
Leaf calculation value is equal with standard value, if busbar voltage VDCFourier's calculation value of even-times become larger, then controller MICOM is mentioned
High first insulated gate bipolar transistor Q1Or the second insulated gate bipolar transistor Q2Turn-on time, until busbar voltage VDC
Fourier's calculation value it is equal with standard value.
The time point that deviation inhibition is carried out to frequency changer circuit is selected, time point selection carries out inclined immediately after power supply investment
Difference inhibits, or selection carries out deviation inhibition before compressor of air conditioner starts.
The present invention also provides a kind of frequency changer circuits with interleaving mode, include:
Power supply U；
Diode rectifier bridge DB is electrically connected power supply U, for being direct current by AC rectification；
Multiple boost choppers, each boost chopper include that reactor, diode and insulated gate bipolar are brilliant
Body pipe, one end of reactor are electrically connected the first output end a of diode rectifier bridge DB, and the other end is being electrically connected diode just
Extremely, the collector of insulated gate bipolar transistor is electrically connected the positive terminal of diode, and it is whole that emitter is electrically connected diode
Flow the second output terminal b of bridge DB；
Capacitor C, one end are electrically connected the negative pole end of the diode of each boost chopper, and the other end is electrically connected
The second output terminal b of diode rectifier bridge DB, for keeping DC voltage more smooth；
Intelligent power module, two input terminal are connected in the both ends capacitor C in parallel, and output end connection is air conditioner compressed
Machine motor MC, for driving compressor of air conditioner motor MC；
Controller MICOM, one input terminal are connected to the both ends capacitor C, for obtaining the bus electricity at the both ends capacitor C
Press VDC, the gate pole of the insulated gate bipolar transistor of each boost chopper is electrically connected in output end, for being exhausted
Edge grid bipolar junction transistor provides driving signal.
The frequency changer circuit with interleaving mode also includes: transformation loop, two input terminal are connected in electricity in parallel
The both ends container C, output end be electrically connected controller MICOM, for by collected bus voltage value it is scaled after mention
Supply controller MICOM.
The present invention also provides a kind of deviation suppressing methods of frequency changer circuit with interleaving mode comprising the steps of:
Step S1, power supply U is opened, controller MICOM is respectively to the insulated gate bipolar crystal of each boost chopper
The driving signal of pipe offer interleaving mode；
It is applied to the phase of the drive signal impulse on the gate pole of the insulated gate bipolar transistor of each boost chopper
Phase difference 1/n wave amplitude, n are the quantity of boost chopper, and turn-on time is identical, and occurrence frequency is identical；
Step S2, controller MICOM measures the busbar voltage V at the both ends capacitor CDC, and to busbar voltage VDCCarry out Fu
In leaf calculate；
Step S3, controller MICOM is by busbar voltage VDCFourier's calculation value be compared with standard value, if in Fu
Leaf calculation value is equal with standard value, then maintains the drive provided at present the insulated gate bipolar transistor of each boost chopper
The turn-on time of dynamic signal is constant, if the numerical value of the even-times of Fourier's calculation value is greater than standard value, carries out step S4；
Step S4, controller MICOM adjusts the turn-on time of the insulated gate bipolar transistor of each boost chopper,
Until busbar voltage VDCFourier's calculation value it is equal with standard value.
Controller MICOM adjusts the method packet of the turn-on time of the insulated gate bipolar transistor of each boost chopper
Containing following steps:
Controller MICOM reduces the turn-on time of the insulated gate bipolar transistor of any one boost chopper, such as
Fruit busbar voltage VDCFourier's calculation value of even-times be gradually reduced the value that is near the mark, then continuing, which reduces any one boosting, cuts
The turn-on time of the insulated gate bipolar transistor of wave circuit, until busbar voltage VDCFourier's calculation value and standard value phase
Deng if busbar voltage VDCFourier's calculation value of even-times become larger, then controller MICOM improves any one boost chopper
The turn-on time of the insulated gate bipolar transistor of circuit, until busbar voltage VDCFourier's calculation value it is equal with standard value.
The time point that deviation inhibition is carried out to frequency changer circuit is selected, time point selection carries out inclined immediately after power supply investment
Difference inhibits, or selection carries out deviation inhibition before compressor of air conditioner starts.
The present invention effectively reduces the inductance due to reactor by adjusting the turn-on time of insulated gate bipolar transistor
Measure difference and caused by busbar voltage ripple, make busbar voltage VDCWaveform uniform smooth, guarantee to be input to the voltage of compressor
Stablize, to reduce the noise vibration of compressor, is formed by that VDC is smoothened, and voltage is more stable, is effectively improved pressure
Contracting machine noise, vibration problem and harmonic current problem.
Detailed description of the invention
Fig. 1 is the circuit diagram of interleaving mode frequency changer circuit in background technique.
Fig. 2 and Fig. 3 is the voltage waveform view of circuit in Fig. 1.
Fig. 4 is that the present invention provides a kind of circuit diagram of frequency changer circuit with interleaving mode.
Fig. 5 is a kind of flow chart of the deviation suppressing method of frequency changer circuit with interleaving mode provided by the invention.
Fig. 6 is insulated gate bipolar transistor drive signal impulse schematic diagram.
Fig. 7 is busbar voltage VDCFourier's calculation value and standard value comparison chart.
Fig. 8 and Fig. 9 is the schematic diagram for adjusting insulated gate bipolar transistor turn-on time.
Specific embodiment
Below according to Fig. 4~Fig. 9, presently preferred embodiments of the present invention is illustrated.
As shown in figure 4, the present invention provides a kind of frequency changer circuit with interleaving mode, include:
Power supply U；
Diode rectifier bridge DB is electrically connected power supply U, for being direct current by AC rectification；
First boost chopper, it includes the first reactor L1, first diode D1With the first insulated gate bipolar crystal
Manage (IGBT) Q1, the first reactor L1One end be electrically connected the first output end a of diode rectifier bridge DB, the other end electrically connects
Meet first diode D1Positive terminal, the first insulated gate bipolar transistor Q1Collector be electrically connected first diode D1's
Positive terminal, emitter are electrically connected the second output terminal b of diode rectifier bridge DB；
Second boost chopper, it includes the second reactor L2, the second diode D2With the second insulated gate bipolar crystal
Pipe Q2, the second reactor L2One end be electrically connected diode rectifier bridge DB the first output end a, the other end be electrically connected second
Diode D2Positive terminal, the second insulated gate bipolar transistor Q2Collector be electrically connected the second diode D2Positive terminal,
The second output terminal b of emitter electric connection diode rectifier bridge DB；
Capacitor C, one end are electrically connected first diode D1With the second diode D2Negative pole end, the other end electrically connects
The second output terminal b for meeting diode rectifier bridge DB, for keeping DC voltage more smooth；
Intelligent power module, two input terminal are connected in the both ends capacitor C in parallel, and output end connection is air conditioner compressed
Machine motor MC, for driving compressor of air conditioner motor MC；
Controller MICOM, one input terminal are connected to the both ends capacitor C, for obtaining the bus electricity at the both ends capacitor C
Press VDC, the first insulated gate bipolar transistor Q is electrically connected in two output end1Gate pole and the second insulated gate bipolar
Transistor Q2Gate pole, for providing driving signal for insulated gate bipolar transistor；
Due to busbar voltage VDCVoltage value be 280V-310V or so, controller MICOM can not directly detect so big
Voltage value, therefore the present invention also sets up transformation loop, two input terminal is connected in the both ends capacitor C in parallel, for obtaining
The busbar voltage V at the both ends capacitor CDC, output end is electrically connected controller MICOM, for by collected bus voltage value
Controller MICOM is supplied to after scaled；In the present embodiment, which can be used divider resistance, according to 100:1 into
Row partial pressure transformation.
The alternating voltage that power supply U is provided becomes DC voltage after diode rectifier bridge DB rectification；First boost chopper
Circuit is worked alternatively with the second boost chopper by the control of controller MICOM, is obtained through diode rectifier bridge DB
DC voltage pass through the alternate treatment of the first boost chopper, the second boost chopper respectively after, by capacitor C,
So that the DC voltage at the both ends capacitor C is more smooth, and inputs intelligent power module for the DC voltage, driving is empty
Adjust compressor motor MC.
As shown in figure 5, the present invention provides a kind of deviation suppressing method of frequency changer circuit with interleaving mode, specifically include
Following steps:
Step S1, power supply U is opened, controller MICOM is respectively to the first insulated gate bipolar transistor Q1With the second insulation
Grid bipolar junction transistor Q2The driving signal of interleaving mode is provided；
As shown in fig. 6, being applied to the first insulated gate bipolar transistor Q1Gate pole and the second insulated gate bipolar transistor Q2
1/2 wave amplitude of phase phase difference of drive signal impulse on gate pole, turn-on time T1 and T2 is identical, and occurrence frequency is identical (to take 20kHz
A certain value within the scope of~30kHz)；
Step S2, controller MICOM measures the busbar voltage V at the both ends capacitor CDC, and to busbar voltage VDCCarry out Fu
In leaf calculate；
Step S3, controller MICOM is by busbar voltage VDCFourier's calculation value be compared with standard value, if in Fu
Leaf calculation value is equal with standard value, then maintains at present to the first insulated gate bipolar transistor Q1With the second insulated gate bipolar crystalline substance
Body pipe Q2The turn-on time of the driving signal of offer is constant, if the numerical value of the even-times of Fourier's calculation value is greater than standard value,
Then carry out step S4；
As shown in fig. 7, if the first reactor L in the first boost chopper1In the second boost chopper
Second reactor L2Capacity it is inconsistent if, busbar voltage VDCFourier's calculation value (right side) of even-times can become larger, greatly
In standard value (left side)；
Step S4, controller MICOM adjusts the first insulated gate bipolar transistor Q1Or the second insulated gate bipolar crystal
Pipe Q2Turn-on time, until busbar voltage VDCFourier's calculation value it is equal with standard value；
To adjust the first insulated gate bipolar transistor Q1Turn-on time for, illustrate set-up procedure:
Step S4.1, controller MICOM reduces the first insulated gate bipolar transistor Q1Turn-on time (as shown in figure 8,
First by the first insulated gate bipolar transistor Q1Turn-on time be reduced to original 98%), if busbar voltage VDCEven number
Secondary Fourier's calculation value is gradually reduced the value that is near the mark, then continues to reduce the first insulated gate bipolar transistor Q1Conducting when
Between, until busbar voltage VDCFourier's calculation value it is equal with standard value, if busbar voltage VDCThe Fourier of even-times drill
Calculation value becomes larger, then carries out step S4.2；
Step S4.2, controller MICOM improves the first insulated gate bipolar transistor Q1Turn-on time (as shown in figure 9,
First by the first insulated gate bipolar transistor Q1Turn-on time rise to original 102%), until busbar voltage VDCFu in
Leaf calculation value is equal with standard value.
Adjust the second insulated gate bipolar transistor Q2Turn-on time method and the first insulated gate bipolar of adjustment it is brilliant
Body pipe Q1Turn-on time method it is the same.
To busbar voltage VDCCarry out Fourier's calculation and the first insulated gate bipolar transistor Q1Or second insulated gate bipolar
Transistor npn npn Q2Turn-on time adjustment, can have 2 kinds of modes: be carried out immediately after power supply investment (air conditioner access power supply)；
Or it is carried out before compressor start.
Multiple boost choppers can also be arranged in a kind of frequency changer circuit with interleaving mode provided by the invention, each
The structure of boost chopper is identical as the first boost chopper described above and the second boost chopper, all comprising electricity
Anti- device, diode and insulated gate bipolar transistor, controller MICOM are the insulated gate bipolar in each boost chopper
Transistor provides driving signal, the phase phase difference 1/n wave amplitude between drive signal impulse, and n is the quantity of boost chopper
(example: 2 boost choppers: 1/2,3 boost chopper: 1/3), turn-on time is identical, and occurrence frequency is identical.It is provided with
Also there are two the frequency changer circuits of boost chopper with tool for the deviation suppressing method of the frequency changer circuit of multiple boost choppers
The principle of deviation suppressing method is consistent, and controller MICOM is respectively turned on the crystalline substance of the insulated gate bipolar in each boost chopper
Body pipe measures the busbar voltage V at capacitor both endsDC, and to busbar voltage VDCFourier's calculation is carried out, if busbar voltage
VDCFourier's calculation value of even-times become larger, then the insulated gate bipolar in method adjustment boost chopper as described above
The turn-on time of transistor npn npn.
The present invention effectively reduces the inductance due to reactor by adjusting the turn-on time of insulated gate bipolar transistor
Measure difference and caused by busbar voltage ripple, make busbar voltage VDCWaveform uniform smooth, guarantee to be input to the voltage of compressor
Stablize, to reduce the noise vibration of compressor, is formed by that VDC is smoothened, and voltage is more stable, is effectively improved pressure
Contracting machine noise, vibration problem and harmonic current problem.
It is discussed in detail although the contents of the present invention have passed through above preferred embodiment, but it should be appreciated that above-mentioned
Description is not considered as limitation of the present invention.After those skilled in the art have read above content, for of the invention
A variety of modifications and substitutions all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (6)
1. a kind of deviation suppressing method of the frequency changer circuit with interleaving mode, there is the frequency changer circuit of interleaving mode to include for this:
Power supply U；
Diode rectifier bridge DB is electrically connected power supply U, for being direct current by AC rectification；
First boost chopper, it includes the first reactor L1, first diode D1With the first insulated gate bipolar transistor
Q1, the first reactor L1One end be electrically connected diode rectifier bridge DB the first output end a, the other end be electrically connected the one or two
Pole pipe D1Positive terminal, the first insulated gate bipolar transistor Q1Collector be electrically connected first diode D1Positive terminal, hair
The second output terminal b of emitter-base bandgap grading electric connection diode rectifier bridge DB；
Second boost chopper, it includes the second reactor L2, the second diode D2With the second insulated gate bipolar transistor
Q2, the second reactor L2One end be electrically connected diode rectifier bridge DB the first output end a, the other end be electrically connected the two or two
Pole pipe D2Positive terminal, the second insulated gate bipolar transistor Q2Collector be electrically connected the second diode D2Positive terminal, hair
The second output terminal b of emitter-base bandgap grading electric connection diode rectifier bridge DB；
Capacitor C, one end are electrically connected first diode D1With the second diode D2Negative pole end, the other end be electrically connected two
The second output terminal b of pole pipe rectifier bridge DB, for keeping DC voltage more smooth；
Intelligent power module, two input terminal are connected in the both ends capacitor C in parallel, and output end connects compressor of air conditioner horse
Up to MC, for driving compressor of air conditioner motor MC；
Controller MICOM, one input terminal are connected to transformation loop, for obtaining the busbar voltage V at the both ends capacitor CDC,
The first insulated gate bipolar transistor Q is electrically connected in two output ends1Gate pole and the second insulated gate bipolar transistor Q2
Gate pole, for providing driving signal for insulated gate bipolar transistor；
Transformation loop, two input terminal are connected in the both ends capacitor C in parallel, and output end is electrically connected controller MICOM, use
Controller MICOM is supplied to after collected bus voltage value is scaled；
It is characterized in that, the deviation suppressing method of the frequency changer circuit with interleaving mode comprises the steps of:
Step S1, power supply U is opened, controller MICOM is respectively to the first insulated gate bipolar transistor Q1With the second insulated gate bipolar
Transistor npn npn Q2The driving signal of interleaving mode is provided；
It is applied to the first insulated gate bipolar transistor Q1Gate pole and the second insulated gate bipolar transistor Q2Driving letter on gate pole
It feels the pulse 1/2 wave amplitude of phase phase difference of punching, turn-on time is identical, and occurrence frequency is identical；
Step S2, controller MICOM measures the busbar voltage V at the both ends capacitor CDC, and to busbar voltage VDCCarry out Fourier
Calculation；
Step S3, controller MICOM is by busbar voltage VDCFourier's calculation value be compared with standard value, if Fourier drills
Calculation value is equal with standard value, then maintains at present to the first insulated gate bipolar transistor Q1With the second insulated gate bipolar transistor
Q2The turn-on time of the driving signal of offer is constant, if the numerical value of the even-times of Fourier's calculation value is greater than standard value, into
Row step S4；
Step S4, controller MICOM adjusts the first insulated gate bipolar transistor Q1Or the second insulated gate bipolar transistor Q2's
Turn-on time, until busbar voltage VDCFourier's calculation value it is equal with standard value.
2. the deviation suppressing method of the frequency changer circuit with interleaving mode as described in claim 1, which is characterized in that controller
MICOM adjusts the first insulated gate bipolar transistor Q1Or the second insulated gate bipolar transistor Q2Turn-on time method packet
Containing following steps:
Controller MICOM reduces the first insulated gate bipolar transistor Q1Or the second insulated gate bipolar transistor Q2Conducting when
Between, if busbar voltage VDCFourier's calculation value of even-times be gradually reduced the value that is near the mark, then continue to reduce the first insulation
Grid bipolar junction transistor Q1Or the second insulated gate bipolar transistor Q2Turn-on time, until busbar voltage VDCFourier drill
Calculation value is equal with standard value, if busbar voltage VDCFourier's calculation value of even-times become larger, then controller MICOM improves the
One insulated gate bipolar transistor Q1Or the second insulated gate bipolar transistor Q2Turn-on time, until busbar voltage VDCFu
In leaf calculation value it is equal with standard value.
3. the deviation suppressing method of the frequency changer circuit with interleaving mode as claimed in claim 2, which is characterized in that selection pair
Frequency changer circuit carries out the time point of deviation inhibition, and time point selection carries out deviation inhibition, Huo Zhexuan after power supply investment immediately
It selects and carries out deviation inhibition before compressor of air conditioner starts.
4. a kind of deviation suppressing method of the frequency changer circuit with interleaving mode, the frequency changer circuit packet with interleaving mode
Contain:
Power supply U；
Diode rectifier bridge DB is electrically connected power supply U, for being direct current by AC rectification；
Multiple boost choppers, each boost chopper include reactor, diode and insulated gate bipolar transistor,
One end of reactor is electrically connected the first output end a of diode rectifier bridge DB, and the other end is electrically connected the positive terminal of diode,
The collector of insulated gate bipolar transistor is electrically connected the positive terminal of diode, and emitter is electrically connected diode rectifier bridge DB
Second output terminal b；
Capacitor C, one end are electrically connected the negative pole end of the diode of each boost chopper, and the other end is electrically connected two poles
The second output terminal b of pipe rectifier bridge DB, for keeping DC voltage more smooth；
Intelligent power module, two input terminal are connected in the both ends capacitor C in parallel, and output end connects compressor of air conditioner horse
Up to MC, for driving compressor of air conditioner motor MC；
Controller MICOM, one input terminal are connected to transformation loop, for obtaining the busbar voltage V at the both ends capacitor CDC,
The gate pole of the insulated gate bipolar transistor of each boost chopper is electrically connected in output end, for being insulated gate bipolar
Transistor npn npn provides driving signal；
Transformation loop, two input terminal are connected in the both ends capacitor C in parallel, and output end is electrically connected controller MICOM, use
Controller MICOM is supplied to after collected bus voltage value is scaled；
It is characterized in that, the deviation suppressing method of the frequency changer circuit with interleaving mode comprises the steps of:
Step S1, power supply U is opened, controller MICOM respectively mentions the insulated gate bipolar transistor of each boost chopper
For the driving signal of interleaving mode；
It is applied to the phase phase of the drive signal impulse on the gate pole of the insulated gate bipolar transistor of each boost chopper
Poor 1/n wave amplitude, n are the quantity of boost chopper, and turn-on time is identical, and occurrence frequency is identical；
Step S2, controller MICOM measures the busbar voltage V at the both ends capacitor CDC, and to busbar voltage VDCCarry out Fourier
Calculation；
Step S3, controller MICOM is by busbar voltage VDCFourier's calculation value be compared with standard value, if Fourier drills
Calculation value is equal with standard value, then maintains at present to believe the driving that the insulated gate bipolar transistor of each boost chopper provides
Number turn-on time it is constant, if the numerical value of the even-times of Fourier's calculation value be greater than standard value, carry out step S4；
Step S4, controller MICOM adjusts the turn-on time of the insulated gate bipolar transistor of each boost chopper, until
Busbar voltage VDCFourier's calculation value it is equal with standard value.
5. the deviation suppressing method of the frequency changer circuit with interleaving mode as claimed in claim 4, which is characterized in that controller
The method that MICOM adjusts the turn-on time of the insulated gate bipolar transistor of each boost chopper comprises the steps of:
Controller MICOM reduces the turn-on time of the insulated gate bipolar transistor of any one boost chopper, if female
Line voltage VDCFourier's calculation value of even-times be gradually reduced the value that is near the mark, then continue to reduce any one boost chopper electricity
The turn-on time of the insulated gate bipolar transistor on road, until busbar voltage VDCFourier's calculation value it is equal with standard value, such as
Fruit busbar voltage VDCFourier's calculation value of even-times become larger, then controller MICOM improves any one boost chopper
Insulated gate bipolar transistor turn-on time, until busbar voltage VDCFourier's calculation value it is equal with standard value.
6. the deviation suppressing method of the frequency changer circuit with interleaving mode as claimed in claim 5, which is characterized in that selection pair
Frequency changer circuit carries out the time point of deviation inhibition, and time point selection carries out deviation inhibition, Huo Zhexuan after power supply investment immediately
It selects and carries out deviation inhibition before compressor of air conditioner starts.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611165682.7A CN106787795B (en) | 2016-12-16 | 2016-12-16 | A method of frequency changer circuit and its deviation with interleaving mode inhibit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611165682.7A CN106787795B (en) | 2016-12-16 | 2016-12-16 | A method of frequency changer circuit and its deviation with interleaving mode inhibit |
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| CN102624203A (en) * | 2011-01-26 | 2012-08-01 | 珠海格力电器股份有限公司 | Variable frequency speed regulator and variable frequency air conditioner |
| US9077243B2 (en) * | 2012-01-31 | 2015-07-07 | Analog Devices, Inc. | Current-balancing in interleaved circuit phases using a parameter common to the phases |
| CN103532367B (en) * | 2012-07-03 | 2016-12-21 | 珠海格力电器股份有限公司 | interleaved PFC control method and device |
| CN104052274B (en) * | 2013-03-13 | 2017-11-28 | Lg电子株式会社 | Power-converting device and the air conditioner for possessing the power-converting device |
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