CN206422696U - The quasi- source of resistance AC AC converters of New Cascading - Google Patents
The quasi- source of resistance AC AC converters of New Cascading Download PDFInfo
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- CN206422696U CN206422696U CN201720126337.6U CN201720126337U CN206422696U CN 206422696 U CN206422696 U CN 206422696U CN 201720126337 U CN201720126337 U CN 201720126337U CN 206422696 U CN206422696 U CN 206422696U
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Abstract
The utility model discloses a kind of quasi- source of resistance AC AC converters of New Cascading, and in particular to AC converter technical field.The quasi- source of resistance AC AC converters of the New Cascading, including AC converter circuit, AC converter circuit includes big step-up ratio impedance network, the input and output end of big step-up ratio impedance network connection AC converter circuit, big step-up ratio impedance network includes the quasi- source of resistance 1 of the first order mutually cascaded and the multistage quasi- source of resistance 2 of improvement, quasi- source of resistance is improved to be more than one-level, the quasi- source of resistance of the first order includes the first energy storage inductor L1, second energy storage inductor L2, first storage capacitor C1, second storage capacitor C2 and first switch S1, quasi- source of resistance is improved per one-level includes switch S2, energy storage inductor L3 and two storage capacitor C3, C4, the output end connection the 3rd that afterbody improves quasi- source of resistance switchs S3.
Description
Technical field
The utility model belongs to AC converter technical field, and in particular to a kind of quasi- source of resistance AC-AC of New Cascading becomes
Parallel operation.
Background technology
The topological structure of the more alternating voltage translation circuits of application has Boost type, Buck types, Buck-Boost at present
Type, is on the basis of the topological structure of their DC-DC DC converters, single-way switch to be replaced with two-way power switch, just
String AC power replaces dc source, and Buck types and Boost type circuit topological structure are two kinds of earliest power electronics of research
The topological structure of circuit, Buck types circuit can only realize the buck functionality to AC-input voltage, and Boost type circuit can only be realized
To the boost function of AC-input voltage, single realization decompression limits the applied field of two kinds of topological circuits with boost function
Close.Although Buck-Boost types exchange topological circuit can realize the buck regulation to input voltage, the circuit topology
As a second-order system, there is zero point in the RHP of its nyquist plot, unstable sound is then just had in systems
The presence answered, constrains its application in exchange buck occasion.Traditional quasi- source of resistance AC voltage regulator only one of which
Quasi- impedance source network, is limited to current industrial manufacturing level, and the electronic device in its circuit can not be with the complete phase of theoretical parameter
Symbol, so when needing higher transformation ability, its output waveform can be distorted, or even at all can not be with notional result phase
Together, the output quality of power supply can be made to be deteriorated, so as to pollute whole power network.
Utility model content
The purpose of this utility model is to be directed to above-mentioned deficiency, it is proposed that a kind of electric energy output is stable, can infinite cascade, raising
The quasi- source of resistance AC-AC converters of New Cascading of transformation ability.
The utility model is specifically adopted the following technical scheme that：
The quasi- source of resistance AC-AC converters of New Cascading, including AC converter circuit, the AC converter circuit include
Big step-up ratio impedance network, the input and output end of big step-up ratio impedance network connection AC converter circuit, big step-up ratio
Impedance network includes the quasi- source of resistance of the first order mutually cascaded and the multistage quasi- source of resistance of improvement, and the quasi- source of resistance of the first order includes the first storage
Can inductance, the second energy storage inductor, the first storage capacitor, the second storage capacitor and first switch, the quasi- source of resistance bag of improvement per one-level
Switch, energy storage inductor and two storage capacitors are included, the output end connection the 3rd that afterbody improves quasi- source of resistance is switched.
Preferably, the first switch is with improving the switch in switch one switches set of formation in quasi- source of resistance, switches set
Turned on the 3rd switch complementary.
Preferably, the afterbody improves the output end connection filter circuit of quasi- source of resistance, and filter circuit filters for LC
Circuit.
Preferably, first energy storage inductor, the second energy storage inductor and the inductance for improving the energy storage inductor in quasi- source of resistance
Value is equal.
Preferably, first storage capacitor, the second storage capacitor and the electric capacity for improving the storage capacitor in quasi- source of resistance
It is equal in magnitude.
Preferably, it is described to improve quasi- source of resistance to be more than one-level.
The utility model has the advantages that：
(1) the quasi- source of resistance AC-AC converters of New Cascading use new circuit topological structure, are exchanged with traditional quasi- source of resistance
Pressure regulator is high compared to the output quality of power supply, stability is good, step-up ratio is big, the voltage stress of electric capacity and the electric current of inductance are answered in circuit
Power is small；
(2) big step-up ratio impedance network can be cascaded with infinite stages, greatly improve transformation ability；
(3) the quasi- source of resistance AC-AC converters dynamic property of the New Cascading is good, circuit topological structure is simple, net side work(
The advantages of rate factor is high, collection economies, high efficiency, novelty are received together with the voltage stabilizing of alternating voltage and pressure regulation occasion
More and more extensive popularization and application；
(4) the quasi- source of resistance AC-AC converters of the New Cascading can be applied not only to pressure regulation, it is also possible in inverter, greatly
Improve the service life of battery；
(5) end of the quasi- source of resistance AC-AC converters of the New Cascading is filtered using LC, realizes the bidirectional flow of power flow
It is dynamic, with general well.
Brief description of the drawings
Fig. 1 is the quasi- source of resistance AC-AC converter circuit structure charts of New Cascading；
Fig. 2 simultaneously turns off for switch S1 and S2, New Cascading quasi- source of resistance AC-AC converter circuits signal when S3 is turned on
Figure；
Fig. 3 simultaneously turns off for switch S1 and S2, and when S3 is turned on, capacitor Cf is to inductance Lf charging circuit schematic diagrames；
Fig. 4 simultaneously turns on for switch S1 and S2, when S3 is turned off, the quasi- source of resistance AC-AC converter circuits signal of New Cascading
Figure；
Fig. 5 simultaneously turns on for switch S1 and S2, when S3 is turned off, the circuit state signal of Vi and L1, L2, L3 powering load
Figure；
Fig. 6 simultaneously turns on for switch S1 and S2, when S3 is turned off, when the inductive current of network is decremented to ILf, loads by network
Capacitor power supply circuit view；
Fig. 7 is emulates with Matlab/Simulink to circuit topology, the input emulated during D=0.4 and output wave
Shape；
Fig. 8 is emulates with Matlab/Simulink to circuit topology, the input emulated during D=0.6 and output wave
Shape；
Circuit boosting waveform when Fig. 9 is the D=0.1 with oscilloscope measurement；
Circuit decompression waveform when Figure 10 is the D=0.65 measured with oscillograph.
Wherein, 1 is the quasi- source of resistance of the first order, and 2 be the quasi- source of resistance of improvement.
Embodiment
Embodiment of the present utility model is described further with specific embodiment below in conjunction with the accompanying drawings：
As shown in figure 1, the quasi- source of resistance AC-AC converters of New Cascading, including AC converter circuit, AC converter electricity
Road includes big step-up ratio impedance network, and big step-up ratio impedance network connects the input and output end of AC converter circuit, greatly
Step-up ratio impedance network includes the quasi- source of resistance 1 of the first order mutually cascaded and the multistage quasi- source of resistance 2 of improvement, and improve quasi- source of resistance is
More than one-level, the quasi- source of resistance of the first order includes the first energy storage inductor L1, the second energy storage inductor L2, the first storage capacitor C1, second
Storage capacitor C2 and first switch S1, quasi- source of resistance is improved per one-level includes switch S2, energy storage inductor L3 and two storage capacitors
C3, C4, afterbody improve the switch S3 of output end connection the 3rd for turning quasi- source of resistance.
First switch S1 is opened with improving the switch in switch S2 one switches sets of formation in quasi- source of resistance, switches set with the 3rd
Close S3 complementation conductings.
Afterbody improves the output end connection filter circuit of quasi- source of resistance, and filter circuit is LC filter circuits.
First energy storage inductor L1, the second energy storage inductor L2 and the inductance value phase for improving the energy storage inductor L3 in quasi- source of resistance
Deng the first storage capacitor C1, the second storage capacitor C2 and the capacitance size phase for improving storage capacitor C3, C4 in quasi- source of resistance
Deng.
Because the frequency of input power is far smaller than switching frequency fs, input voltage can be regarded as directly during analysis circuit
Stream.New quasi- source of resistance AC converter has following five kinds of working conditions according to the different senses of current：
Working condition 1：As shown in Fig. 2 first switch S1 and switch S2 are simultaneously turned off, the 3rd switch S3 conductings have four
Individual voltage circuit, input voltage Vi, the second energy-storage capacitor C2 and storage capacitor C4 charge to energy storage inductor L1, the first energy storage electricity
Container C1, storage capacitor C4 charge to the second energy storage inductor L2, and storage capacitor C3 charges to energy storage inductor L3, and inductance Lf is to load
Power supply.
Working condition 2：Such as Fig. 3, first switch S1 and switch S2 are simultaneously turned off, the 3rd switch S3 conductings, in state 1,
ILfCapacitor Cf can charge to inductance Lf when being decremented to zero, and inductive current will reversely be incremented by, and now have identical with working condition 1
Voltage relationship.
Working condition 3：Such as Fig. 4, first switch S1 and switch S2 are simultaneously turned on, the 3rd switch S3 shut-offs, if now ILfInstead
To electric current, Lf can be to the quasi- source of resistance network-feedback energy of big step-up ratio, and now supply voltage Vi and inductance L1 fill to capacitor C1
Electricity, the second energy storage inductor L2 give electric second energy-storing container C2 charging, energy storage inductor L3 give storage capacitor C4 charging, while Vi, L1,
L2, L3 powering load.
Working condition 4：Such as Fig. 5, the 3rd switch S3 shut-offs, first switch S1 and switch S2 are simultaneously turned on, and big step-up ratio is accurate
The working condition of impedance source network is similar with state 3, but now ILfForward flow, Vi and L1, L2, L3 powering load, rise higher
The inductive current of the quasi- impedance source network of pressure ratio will decrement by.
Working condition 5：Such as Fig. 6, with state 4, the inductive current of network is decremented to ILfWhen, load is supplied by network capacitors
Electricity, voltage relationship is turned off in the 3rd S3, and first switch S1 is still set up under the conditions of being simultaneously turned on switch S2.
As Figure 7-8, simulation study and analysis have been carried out using MATLAB/Simulink to circuit topology, and provided
System emulation result, simulation parameter is L1=L2=L3=100 μ H, C1=C2=C3=C4=25 μ F, Lf=1mH, Cf=
50 μ F, R=100 Ω, fs=20kHz, Vi=24V.It sets forth the boosting emulated during D=0.4 and D=0.6 and decompression
Waveform.
Experimental circuit is built by simulation result, control circuit part produces the PWM letters of complementation using TMS320F2812
Number, drive part uses SGH80N60UFDUltrafast using wooden source KA962D driving plates, the full-controlled switch of main circuit is fallen
IGBT。
Boosting and decompression waveform (Ui is input, and Uo is output) when oscillograph has measured D=0.1 and D=0.65, such as
Shown in Fig. 9 and Figure 10.
The correctness of theory analysis and computer artificial result by experiment show.Pass through simulation result and experiment
As a result it is known that the quasi- source of resistance AC-AC converters of New Cascading are solved, conventional AC converter output voltage is unstable, electricity
Can ropy problem.The output voltage of the quasi- source of resistance AC-AC converters of New Cascading is can be seen that with experimental result by emulating
Highly stable, the output quality of power supply is very high, and possesses two kinds of abilities of boosting and decompression, can be very good to reach industry completely
With the requirement in agricultural production to AC voltage adjusting.
The quasi- source of resistance AC-AC converters of New Cascading use new circuit topological structure, and tune is exchanged with traditional quasi- source of resistance
Depressor is high compared to the output quality of power supply, stability is good, step-up ratio is big, in circuit electric capacity voltage stress and the current stress of inductance
It is small；
Big step-up ratio impedance network can be cascaded with infinite stages, greatly improve transformation ability；With society and industry
Development, people to the transformation ability gesture of pressure regulator will necessarily more and more higher, the quasi- source of resistance AC-AC converters of New Cascading can lead to
Cross and cascade more impedance source networks, it is possible to meet the demand to transformation capability improving.
The quasi- source of resistance AC-AC converters dynamic property of the New Cascading is good, circuit topological structure is simple, net side power because
The advantages of number is high, collection economies, high efficiency, novelty are received more next together with the voltage stabilizing of alternating voltage and pressure regulation occasion
More extensive popularization and application；In some voltage pulsations isolated area more poor than larger, power supply quality, New Cascading standard is utilized
Source of resistance AC-AC converters can be realized to input voltage eliminates filtering, purification quality of voltage, the function of burning voltage.Permitted
In many civil electrical equipment and the electric production equipment of factory and enterprise, input power needs matching voltage, and this is just to need
Pressure regulation is carried out to the input voltage of power network by AC voltage adjusting equipment, adjust out the specified voltage of electrical equipment needs.Institute
With either industrial production still agricultural application in, to research all right and wrong of the quasi- source of resistance AC-AC converters of New Cascading
It is often necessary.
The quasi- source of resistance AC-AC converters of the New Cascading can be applied not only to pressure regulation, it is also possible in inverter, be greatly improved
The service life of battery.At present, in the industrial production, pressure regulation is a very popular research direction, but actual
In production, in addition it is also necessary to which alternating current is changed into direct current, such as mobile phone and notebook computer charge, portable power source are charged,
This is accomplished by inverter, and is not only that input electric energy is carried out into simple inversion, but first carries out pressure regulation again to input electricity
The direct current needed by inverter bridge, most widely used is exactly mobile phone and notebook computer charger, because mobile phone and pen
Remember that this computer inner member belongs to light current device, so can not be defeated directly by 220V voltages to mobile phone and notebook computer charging
Enter in battery, it is necessary to decompression another mistake is first carried out in charger and is changed into direct current.Currently, in industry and the application of daily life
In, most popular method is that first input voltage is boosted or is depressured, and this is accomplished by before inverter plus an energy is steady
Surely the pressure regulator exported.Current mobile phone and notebook computer belong to relatively accurate and high-end electric equipment, so to input
Voltage needs higher accuracy, stability and controllability.Traditional pressure regulator, because it mainly uses diode as control
Device processed, diode is a kind of uncontrollable device, and its turn-on and turn-off is limited only in the positive or reverse of electric current, completely can not
Freely controlled according to the demand of people, and it is very unstable, and antijamming capability is very poor, and which results in the controllable of traditional pressure regulator
Property and stability are very poor, and traditional pressure regulator is often set up in theory in laboratory, but build after experimental circuit but no
To desired result, reason is a lot, but the unstability of diode is a kind of very common reason.The quasi- impedance of New Cascading
Source AC-AC converters use MOSFET/IGBT as switch control device, and MOSFET/IGBT is a kind of very stable electricity
Power electronic device, and it is relative to diode, is exactly controllability the characteristics of maximum, is a kind of controllable devices, completely can root
It is controlled to turn on and off according to human needs.It is current to have overwhelming advantage compared to diode because of MOSFET/IGBT switching tubes,
So using widely, it develops and using highly developed, and price is also cheap, whether its stability, controllability or passes through
Ji property is all only selection.The quasi- source of resistance AC-AC converters of New Cascading as switch, greatly improve MOSFET/IGBT
The stability and controllability of whole circuit topology, so in the case of higher to input power requirements, if using new
Cascade quasi- source of resistance AC-AC converters, it will greatly promote the reliability of electrical equipment.It is contemplated that, if by new level
Join quasi- source of resistance AC-AC converters to be put in before inverter bridge, applied in mobile phone and notebook computer charger, it will greatly carry
Rise the service life of battery.
The end of the quasi- source of resistance AC-AC converters of the New Cascading is filtered using LC, realizes the two-way flow of power flow,
With general well.
Certainly, described above is not that, to limitation of the present utility model, the utility model is also not limited to the example above,
The variations, modifications, additions or substitutions that those skilled in the art are made in essential scope of the present utility model, also should
Belong to protection domain of the present utility model.
Claims (6)
1. the quasi- source of resistance AC-AC converters of New Cascading, including AC converter circuit, the AC converter circuit include big
Step-up ratio impedance network, the input and output end of big step-up ratio impedance network connection AC converter circuit, it is characterised in that
Big step-up ratio impedance network includes the quasi- source of resistance of the first order mutually cascaded and the multistage quasi- source of resistance of improvement, the quasi- source of resistance bag of the first order
The first energy storage inductor, the second energy storage inductor, the first storage capacitor, the second storage capacitor and first switch are included, improves accurate per one-level
Source of resistance includes switch, energy storage inductor and two storage capacitors, and the output end connection the 3rd that afterbody improves quasi- source of resistance is opened
Close.
2. the quasi- source of resistance AC-AC converters of New Cascading as claimed in claim 1, it is characterised in that the first switch with
The switch and the 3rd switch complementary improved in switch one switches set of formation in quasi- source of resistance, switches set is turned on.
3. the quasi- source of resistance AC-AC converters of New Cascading as claimed in claim 1, it is characterised in that the afterbody changes
Enter the output end connection filter circuit of quasi- source of resistance, filter circuit is LC filter circuits.
4. the quasi- source of resistance AC-AC converters of New Cascading as claimed in claim 1, it is characterised in that the first energy storage electricity
Sense, the second energy storage inductor are equal with the inductance value for improving the energy storage inductor in quasi- source of resistance.
5. the quasi- source of resistance AC-AC converters of New Cascading as claimed in claim 1, it is characterised in that the first energy storage electricity
Appearance, the second storage capacitor are equal with the capacitance size for improving the storage capacitor in quasi- source of resistance.
6. the quasi- source of resistance AC-AC converters of New Cascading as claimed in claim 1, it is characterised in that the quasi- impedance of improvement
Source is more than one-level.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720126337.6U CN206422696U (en) | 2017-02-13 | 2017-02-13 | The quasi- source of resistance AC AC converters of New Cascading |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720126337.6U CN206422696U (en) | 2017-02-13 | 2017-02-13 | The quasi- source of resistance AC AC converters of New Cascading |
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| Publication Number | Publication Date |
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| CN206422696U true CN206422696U (en) | 2017-08-18 |
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ID=59570999
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| CN201720126337.6U Expired - Fee Related CN206422696U (en) | 2017-02-13 | 2017-02-13 | The quasi- source of resistance AC AC converters of New Cascading |
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| Country | Link |
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2017
- 2017-02-13 CN CN201720126337.6U patent/CN206422696U/en not_active Expired - Fee Related
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Granted publication date: 20170818 Termination date: 20180213 |