CN109950937A - A kind of topological structure of the isolated power inverter of distribution of driving AC load - Google Patents
A kind of topological structure of the isolated power inverter of distribution of driving AC load Download PDFInfo
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- CN109950937A CN109950937A CN201910303352.7A CN201910303352A CN109950937A CN 109950937 A CN109950937 A CN 109950937A CN 201910303352 A CN201910303352 A CN 201910303352A CN 109950937 A CN109950937 A CN 109950937A
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- 239000011159 matrix material Substances 0.000 claims abstract description 38
- 238000004804 winding Methods 0.000 claims abstract description 16
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 3
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 3
- 229910002601 GaN Inorganic materials 0.000 claims description 2
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims description 2
- 238000002955 isolation Methods 0.000 abstract description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009711 regulatory function Effects 0.000 description 2
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
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- 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
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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- Inverter Devices (AREA)
Abstract
The invention discloses a kind of topological structures of the isolated power inverter of distribution of driving AC load, the DC/AC direct-current-alternating-current converter powered including one by higher level's DC power supply, one isolated transformer and more than one AC/AC alternating current matrix converter, the output end of the DC/AC direct-current-alternating-current converter is connect with the primary side winding of isolated transformer, and the input terminal of each AC/AC alternating current matrix converter is connected with the vice-side winding of an isolated transformer, the output of each AC/AC alternating current matrix converter is connected with an independent AC load, realize that direct current energy first passes through DC/AC direct-current-alternating-current converter and is converted into alternating current, realize that alternating current is distributed to different AC/AC exchanges in a distributed manner to be handed over using isolated transformer Flow the topological structure that matrix converter is adjusted with is finally individually powered for each AC load after control.Securely and reliably isolation control is implemented separately to load in the configuration of the present invention is simple, improves safety.
Description
Technical field
The present invention relates to a kind of technical field of electronic power converter, specially a kind of point of driving AC load
The topological structure of the isolated power inverter of cloth.
Background technique
Converters have in fields such as aviation, automobile, industry to be widely applied.It is mostly negative in traditional DC DC driven
In the system of load, the DC-AC(DC-AC of each AC load) power inverter is all commonly connected to same set of DC bus
On, a kind of this topological structure mainly has following disadvantage:
1, safety is lower, the power inverter of any load or any load break down (short circuit, burn) can lead to it is entire
System burns, failure；
2, harmonic wave caused by the power inverter of system harmonics, any load or any load can react in whole system,
System harmonics are caused, while the harmonic wave of different loads can also be overlapped mutually with system harmonics and the efficiency of whole system is caused to decline；
3, when any load energy is fed back (such as motor brake generating state), the electric energy of feedback is acted directly on DC bus,
The power inverter of power supply and other loads is caused to impact, causes the damage of power supply and system；
4, pressure regulation is difficult, any load if desired voltage power supply different grades of with busbar voltage when, need to additionally increase pressure regulation electricity
Road.
Summary of the invention
The purpose of the present invention is to provide a kind of topological structure of the isolated power inverter of distribution of driving AC load,
Its structure is simple, safe and reliable novel electric power electric power converter topologies structure, converts multi-load electric and electronic power
Device system is safer in the application of the professional domains such as aviation, reliably.
To achieve the above object, the invention provides the following technical scheme: a kind of isolated function of distribution for driving AC load
The topological structure of rate converter, including a DC/AC direct-current-alternating-current converter powered by higher level's DC power supply, an isolation
Formula transformer and more than one AC/AC alternating current matrix converter, the output of the DC/AC direct-current-alternating-current converter
End connect with the primary side winding of isolated transformer, and the input terminal of each AC/AC alternating current matrix converter with it is described
The output of one vice-side winding of isolated transformer connects, the output connection of each AC/AC alternating current matrix converter
There is an independent AC load, realizes that direct current energy first passes through DC/AC direct-current-alternating-current converter and is converted into alternating current, then pass through
It crosses isolated transformer and realizes that alternating current is distributed to different AC/AC alternating current matrix converters in a distributed manner to be adjusted
After control, the topological structure that is finally individually powered for each AC load.
Preferably, the number of turns of each vice-side winding can be adjusted as needed.
Preferably, the DC/AC direct-current-alternating-current converter includes 6 power tubes, and the switch control of power tube is by upper
Layer control circuit provides.
Preferably, the power tube is IGBT or Mosfet or silicon carbide or gallium nitride power device.
Preferably, the AC/AC alternating current matrix converter includes 9 matrix dots, each matrix dot is by two
Power tube, which forms and connects two lines, realizes on or off.
Compared with prior art, the present invention carries out energy by using isolated converters topological structure is distributed
Amount adjusts transmission, finally has the advantage that
1, respectively load subsystem between and son load it is mutually isolated with system power supply, when any load system breaks down other
Sub- load system and system power supply may continue to work, and security of system improves；
2, since load subsystem and system power supply are mutually isolated, the harmonic wave generated in each sub- load system work will not be acted on
Its whole system, system power supply Quality advance system loss harmonic wave reduce；
3, in sub- load system energy feedback, there is stronger regulatory function and robustness；
4, sub- load system voltage is adjustable, strong flexibility, the load suitable for different voltages grade.
Detailed description of the invention:
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to embodiment or existing skill
Attached drawing needed in art description is briefly described, it should be apparent that, the accompanying drawings in the following description is only the present invention
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is whole for the topological structure for being distributed isolated power inverter for driving AC load a kind of in the present embodiment 1
Body structure principle chart；
Fig. 2 is the circuit diagram of DC/AC direct-current-alternating-current converter in the present embodiment 1；
Fig. 3 is the circuit diagram of AC/AC alternating current matrix converter and other peripheral circuits in the present embodiment 1.
In figure: DC/AC direct-current-alternating-current converter 1, primary side winding 1-1, vice-side winding 1-2, isolated transformer 2, AC/
AC alternating current matrix converter 3, AC load 4, power tube 7, ac input end 8, input filter 9, output filter 10,
Output loading 11.
Specific embodiment:
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clearly and completely
Description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
Fig. 1-3 is please referred to, invention is further explained:
Embodiment 1:
As shown in Figure 1, a kind of topological structure of the isolated power inverter of distribution of driving AC load provided in this embodiment,
DC/AC direct-current-alternating-current converter 1, one isolated transformer 2 being powered including one by higher level's DC power supply and one with
On AC/AC alternating current matrix converter 3, the output end of the DC/AC direct-current-alternating-current converter 1 and isolated transformer
2 primary side winding 1-1 connection, and the input terminal of each AC/AC alternating current matrix converter 3 and the isolated transformer
The output of a 2 vice-side winding 1-2 connects, and the output of each AC/AC alternating current matrix converter 3 is connected with one solely
Vertical AC load 4 realizes that direct current energy first passes through DC/AC direct-current-alternating-current converter 1 and is converted into alternating current, using isolation
Alternating current is distributed to different AC/AC alternating current matrix converters 3 in a distributed manner and is adjusted and controls by the realization of formula transformer 2
After system, the topological structure that is finally individually powered for each AC load 4.
Preferably, the number of turns of each vice-side winding 1-2 can be adjusted as needed.
As shown in Fig. 2, preferably, the DC/AC direct-current-alternating-current converter 1 includes 6 power tubes 7, and power tube 7
Switch control provided by top level control circuit.Preferably, the power tube 7 is IGBT or Mosfet or silicon carbide or nitrogen
Change gallium power device.The power tube 7 uses IGBT in the present embodiment.
As shown in figure 3, preferably, the AC/AC alternating current matrix converter 3 includes 9 matrix dots, Mei Geju
Lattice point, which is made of two power tubes 7 and connects two lines, realizes on or off, and the AC/AC exchange is handed in the present embodiment
It is one for connecting isolated transformer 2 that the input terminal of stream matrix converter 3, which connects ac input end 8 by input filter 9,
The output end of vice-side winding 1-2, the AC/AC alternating current matrix converter 3 are negative by the connection output of output filter 10
Carry 11 i.e. AC load 4；The AC/AC alternating current matrix converter 3, DC/AC DC-AC conversion in the present embodiment
The physical circuit of device 1 belongs to the ordinary skill in the art, so not specifically describing.
When work, DC current first passes through DC/AC direct-current-alternating-current converter 1 and is converted into suitable alternating current, then passes through
Isolated transformer 2 carry out it is distributed after signal isolation be sent to different vice-side winding 1-2, then by independent secondary side around
Group 1-2 give corresponding AC/AC alternating current matrix converter 3, carries out pair by AC/AC alternating current matrix converter 3
The alternating current of side winding 1-2 output is conveyed to the process of the alternating voltage of the needs of AC load 4 after being converted, therefore by upper
State structure design realize between each 4 subsystem of AC load and son load and system input power between carry out mutually every
From, it is ensured that other sub- load systems and system power supply can still work on when any 4 system jam of AC load,
Guarantee that the safety is improved for whole system, while the voltage of sub- load system can individually be adjusted, and finally guarantee flexibility
By force, the load suitable for different voltages grade.The son load described in the present embodiment is each independent AC load
4, the system power supply is the input power for inputting DC/AC direct-current-alternating-current converter 1.Described in the present embodiment is defeated
Enter filter 9, the physical circuit of output filter 10 is routine so not specifically describing.
The AC load 4 described in the present embodiment be assumed to be 2 or more multi-rotor unmanned aerial vehicle or more driving motors
Or compressor of air conditioner；Each multi-rotor unmanned aerial vehicle or driving motor or compressor of air conditioner are exchanged with each AC/AC at this time
The output end connection of matrix converter 3 is exchanged, and in order to be filtered to current signal, each multi-rotor unmanned aerial vehicle or driving
Connect the output filter 10 between motor or compressor of air conditioner and AC/AC alternating current matrix converter 3, when work,
There is provided using higher level's DC power supply by battery, be converted into alternating current first with DC/AC direct-current-alternating-current converter 1, then utilize every
After being isolated from formula transformer 2 to by AC/AC alternating current matrix converter 3 converted after to rotor more than each without
Man-machine or driving motor or compressor of air conditioner carry out independently-powered.
Embodiment 2:
The AC load 4 is assumed to be the new energy vapour such as more electrically-driven compressors or steering engine actuating system in the present embodiment
Vehicle；At this time by the new-energy automobiles such as each electrically-driven compressors or steering engine actuating system and each AC/AC alternating current square
The output end connection of battle array converter 3, and in order to be filtered to current signal, each electrically-driven compressors or steering engine actuation system
System etc. connects the output filter 10 between new-energy automobiles and AC/AC alternating current matrix converter 3, when work, on
Grade DC power supply is provided by DC bus, is converted into alternating current first with DC/AC direct-current-alternating-current converter 1, then utilizes isolation
Formula transformer 2 be isolated after to after being converted by AC/AC alternating current matrix converter 3 to each electric driven compression
The new-energy automobiles such as machine or steering engine actuating system carry out independently-powered.
Compared with prior art, the present embodiment is carried out by using isolated converters topological structure is distributed
Energy adjustment transmission, finally has the advantage that
1, respectively load subsystem between and son load it is mutually isolated with system power supply, when any load system breaks down other
Sub- load system and system power supply may continue to work, and security of system improves；
2, since load subsystem and system power supply are mutually isolated, the harmonic wave generated in each sub- load system work will not be acted on
Its whole system, system power supply Quality advance system loss harmonic wave reduce；
3, in sub- load system energy feedback, there is stronger regulatory function and robustness；
4, sub- load system voltage is adjustable, strong flexibility, the load suitable for different voltages grade.
Claims (6)
1. a kind of topological structure of the isolated power inverter of distribution of driving AC load, including one by higher level's direct current
DC/AC direct-current-alternating-current converter (1), an isolated transformer (2) and the more than one AC/AC exchange of source power supply are handed over
It flows matrix converter (3), it is characterised in that: the output end and isolated transformer of the DC/AC direct-current-alternating-current converter (1)
(2) primary side winding (1-1) connection, and the input terminal of each AC/AC alternating current matrix converter (3) with it is described isolated
The output of one vice-side winding (1-2) of transformer (2) connects, the output of each AC/AC alternating current matrix converter (3)
It is connected with an independent AC load (4), realizes that direct current energy first passes through DC/AC direct-current-alternating-current converter (1) conversion and strikes a bargain
Galvanic electricity realizes that alternating current is distributed to different AC/AC alternating current matrixes in a distributed manner to be become using isolated transformer (2)
Parallel operation (3) be adjusted with after control, the topological structure that is finally individually powered for each AC load (4).
2. a kind of topological structure of the isolated power inverter of distribution of driving AC load according to claim 1,
It is characterized in that, the number of turns of each vice-side winding (1-2) can be adjusted as needed.
3. a kind of topological structure of the isolated power inverter of distribution of driving AC load according to claim 1 or 2,
It is characterized in that, the DC/AC direct-current-alternating-current converter (1) includes 6 power tubes (7), and the switch control of power tube (7)
It is provided by top level control circuit.
4. a kind of topological structure of the isolated power inverter of distribution of driving AC load according to claim 3,
It is characterized in that, the power tube (7) is IGBT or Mosfet or silicon carbide or gallium nitride power device.
5. a kind of topological structure of the isolated power inverter of distribution of driving AC load according to claim 1 or 2,
It is characterized in that, the AC/AC alternating current matrix converter (3) includes 9 matrix dots, each matrix dot is by two power
Pipe, which forms and connects two lines, realizes on or off.
6. a kind of topological structure of the isolated power inverter of distribution of driving AC load according to claim 1 or 2,
It is characterized in that, the AC/AC alternating current matrix converter (3) includes 9 matrix dots, each matrix dot is by two power
Pipe, which forms and connects two lines, realizes on or off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910303352.7A CN109950937A (en) | 2019-04-16 | 2019-04-16 | A kind of topological structure of the isolated power inverter of distribution of driving AC load |
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| CN201910303352.7A CN109950937A (en) | 2019-04-16 | 2019-04-16 | A kind of topological structure of the isolated power inverter of distribution of driving AC load |
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2019
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