CN110473452A - A kind of power electronics building blocks - Google Patents
A kind of power electronics building blocks Download PDFInfo
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- CN110473452A CN110473452A CN201910865705.2A CN201910865705A CN110473452A CN 110473452 A CN110473452 A CN 110473452A CN 201910865705 A CN201910865705 A CN 201910865705A CN 110473452 A CN110473452 A CN 110473452A
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- building blocks
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- 238000004146 energy storage Methods 0.000 claims description 67
- 238000006243 chemical reaction Methods 0.000 claims description 31
- 239000003990 capacitor Substances 0.000 claims description 30
- 230000005611 electricity Effects 0.000 claims description 25
- 239000002023 wood Substances 0.000 claims description 12
- 238000013519 translation Methods 0.000 claims description 9
- 238000013461 design Methods 0.000 abstract description 19
- 238000010586 diagram Methods 0.000 description 18
- 238000000034 method Methods 0.000 description 10
- 238000012986 modification Methods 0.000 description 8
- 230000004048 modification Effects 0.000 description 8
- 238000002474 experimental method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 102100039435 C-X-C motif chemokine 17 Human genes 0.000 description 2
- 101000889048 Homo sapiens C-X-C motif chemokine 17 Proteins 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
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- 230000007935 neutral effect Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000024241 parasitism Effects 0.000 description 1
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- 239000004065 semiconductor Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/18—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism
- G09B23/183—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism for circuits
- G09B23/185—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism for circuits for building block systems
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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
- H02M1/00—Details of apparatus for conversion
Abstract
This application discloses a kind of power electronics building blocks, first controls first port of the first end of switch unit as power electronics building blocks against conductivity type entirely, and second end is as the 4th port；The second end that the first end and second end of first switch unit control with first against conductivity type switch unit entirely is connect, the second end that switch unit is controlled against conductivity type with second in the third end of first switch unit entirely is connect and the second port as power electronics building blocks, control against conductivity type the first end of switch unit entirely with second respectively in 4th end of first switch unit, the first end of first inductance unit and the first end connection of second switch unit, the second end of second switch unit is connect with the second end of the first inductance unit and the third port as power electronics building blocks.First switch unit has first state and the second state.The operating experience that student designs circuit is excited, while student is again very convenient when building circuit since the topology of power electronics building blocks is restructural using the scheme of the application.
Description
Technical field
The present invention relates to power electronics fields, more particularly to a kind of power electronics building blocks.
Background technique
Power electronic technique is the key technology of multiple fields.Under the demand promotion of industry, not only power electronic technique
Itself makes rapid progress, and demand of the related industry to the applied power electronic technique talent is also more urgent.However, electric for a long time
The paces of the development of power electronic technology education fail the development immediately following industrial technology.Especially Link of Practice Teaching is not only tested
Content is outmoded, and the design of experimental provision is generally also only able to satisfy confirmatory experiment, can not being designed property experiment to excite
Student's operation sense on the spot in person is also just difficult to implement the requirement of " learning by doing, in do ".
For current power electronic technique in test, what is generallyd use is the structure of box-hanging type.Hang case in interlock circuit
It is finished through connection, is not necessarily to student's manual designs circuit connection, student only can be carried out replication experiment, be unfavorable for exciting the behaviour of student
It experiences.Also, experiment type is various in power electronic technique, such as has boost conversion circuit, and step-down conversion circuit etc. causes
Required extension case is many kinds of, and then leads to the heavy workload of maintenance, and experimental cost is higher.And if not using box-hanging type knot
Structure is only placed each component and is connected by student resource, although students experience can be excited, can seriously occupy teaching duration,
And different level of student is irregular, the situation of circuit connection mistake can often occur, and lead to the mistake for finding out circuit connection
And modification is very troublesome, therefore usually component will not be connected by student resource to realize teaching.
In conclusion excitation student designs the operation sense of circuit, while can how in Power Electronic Experimentation teaching again
Avoiding student resource design circuit from occupying, duration is too long, and the inconvenient problem of the modification of circuit error, is current those skilled in the art
Member's technical problem urgently to be solved.
Summary of the invention
The object of the present invention is to provide a kind of power electronics building blocks, with when Power Electronic Experimentation is imparted knowledge to students, excitation student is set
The operation sense of circuit is counted, while can be avoided student resource design circuit again and occupying that duration is too long, and the modification of circuit error is inconvenient
The problem of.
In order to solve the above technical problems, the invention provides the following technical scheme:
A kind of power electronics building blocks, comprising: first controls switch unit against conductivity type entirely, and second controls switch unit against conductivity type entirely,
First switch unit, second switch unit and the first inductance unit；
Described first controls first port of the first end of switch unit as power electronics building blocks against conductivity type entirely, and second end is made
For the 4th port of the power electronics building blocks；The first end and second end of the first switch unit are inverse with described first
Conductivity type controls the second end connection of switch unit entirely, and switch is controlled at the third end of the first switch unit and described second against conductivity type entirely
The second end of unit connects and the second port as the power electronics building blocks, the 4th end difference of the first switch unit
The first end for controlling against conductivity type switch unit entirely with described second, the first end of first inductance unit and the second switch
The first end of unit connects, and the second end of the second switch unit is connect with the second end of first inductance unit and conduct
The third port of the power electronics building blocks；
It is connected between the second end of the first switch unit and the 4th end of the first switch unit, and described first
It is the first of the first switch unit when being turned off between the first end of switch unit and the third end of the first switch unit
State；It is turned off between the second end of the first switch unit and the 4th end of the first switch unit, and described first opens
It is the second shape of the first switch unit when being connected between the first end of pass unit and the third end of the first switch unit
State.
Preferably, further includes: third switch unit, first energy-storage units and second energy-storage units；
The first end that the first end of the third switch unit controls against conductivity type switch unit with described first entirely is connect, described
The third end of third switch unit is connect with the first end of the first energy-storage units, the second end of the third switch unit with
Described second controls the second end connection of switch unit, the 4th end of the third switch unit and second energy storage against conductivity type entirely
The second end of unit connects, and the second end of the first energy-storage units is connect with the first end of the second energy-storage units and conduct
The fifth port of the power electronics building blocks；
It is connected between the first end of the third switch unit and the third end of the third switch unit, and the third
It is the first of the third switch unit when being connected between the second end of switch unit and the 4th end of the third switch unit
State；It is turned off between the first end of the third switch unit and the third end of the third switch unit, and the third is opened
It is the second shape of the third switch unit when being turned off between the second end of pass unit and the 4th end of the third switch unit
State.
Preferably, described first controlled entirely against conductivity type switch unit include the first NMOS tube and antiparallel one or two pole
Pipe, described second controls switch unit against conductivity type entirely includes the second NMOS tube and antiparallel second diode；
The grid of first NMOS tube controls the control terminal of switch unit as described first entirely against conductivity type, and described first
The source electrode of NMOS tube is connect with the anode of the first diode, and controls the second of switch unit entirely against conductivity type as described first
End, the drain electrode of first NMOS tube is connect with the cathode of the first diode, and is controlled and opened entirely against conductivity type as described first
Close the first end of unit；The grid of second NMOS tube controls the control terminal of switch unit, institute as described second entirely against conductivity type
The source electrode for stating the second NMOS tube is connect with the anode of second diode, and controls switch unit entirely against conductivity type as described second
Second end, the drain electrode of second NMOS tube connect with the cathode of second diode, and as described second against conductivity type
The first end of full control switch unit.
Preferably, the first energy-storage units are first capacitor or the first battery；The second energy-storage units are the second electricity
Perhaps the second battery；
Wherein, when the first energy-storage units are the first capacitor, described in the first end conduct of the first capacitor
The first end of first energy-storage units, second end of the second end of the first capacitor as the first energy-storage units, when described
When first energy-storage units are first battery, first end of the anode of first battery as the first energy-storage units,
Second end of the cathode of first battery as the first energy-storage units；
When the second energy-storage units are second capacitor, the first end of second capacitor is as second storage
The first end of energy unit, second end of the second end of second capacitor as the second energy-storage units, when second storage
Can unit when being second battery, first end of the anode of second battery as the second energy-storage units, described the
Second end of the cathode of two batteries as the second energy-storage units.
Preferably, the second switch unit is relay, and the first controlled terminal of the relay is opened as described second
Close the first end of unit, second end of the second controlled terminal of the relay as the second switch unit, by controlling institute
The turn-on and turn-off of the control loop of relay are stated, realize the control of the turn-on and turn-off to the controlled circuit of the relay.
It preferably, further include controlling against conductivity type switch unit entirely with described first respectively and described second being controlled entirely against conductivity type
Switch unit connection, for controlling the described first state and control for controlling against conductivity type switch unit entirely by the received signal that controls
Make the Drive Protecting Circuit for the state that described second controls switch unit against conductivity type entirely.
Preferably, power electronics building blocks are applied in Buck conversion circuit, and the Buck conversion circuit includes first
Power electronics building blocks and the second power electronics building blocks；
The first port of the first power electronics building blocks is connect with the first positive pole, the first power electronics building blocks
Second port connect respectively with the second port of the cathode of first power supply and the second power electronics building blocks, it is described
The third port of first power electronics building blocks is connect with the fifth port of the second power electronics building blocks；The second electric power electricity
The fifth port of subproduct wood connect with the first end of the first load, the second port of the second power electronics building blocks and described the
The second end connection of one load；
First switch unit in the first power electronics building blocks is in first state；The first power electronics building blocks
In second switch unit it is in an off state, the third switch unit in the first power electronics building blocks is in the first shape
State；Third switch unit in the second power electronics building blocks is in first state.
Preferably, power electronics building blocks are applied in boost type translation circuit, and the boost type translation circuit includes third
Power electronics building blocks and the 4th power electronics building blocks；
The first port of the third power electronics building blocks is connect with the first end of the second load, the third power electronics
The second port of building blocks connects with the second end of the second load and the second port of the 4th power electronics building blocks respectively
It connects, the third port of the third power electronics building blocks is connect with the fifth port of the 4th power electronics building blocks；Described
The anode of the fifth ports of four power electronics building blocks and second source connects, the second port of the 4th power electronics building blocks with
The cathode of the second source connects.
First switch unit in the third power electronics building blocks is in first state, the third power electronics building blocks
In second switch unit it is in an off state, the third switch unit in the third power electronics building blocks is in the first shape
State；Third switch unit in the 4th power electronics building blocks is in first state.
Preferably, power electronics building blocks are applied in DC-DC conversion circuit, and the DC-DC conversion circuit includes the 5th electricity
Power electronic building blocks and the 6th power electronics building blocks；
First input end of the first port of the 5th power electronics building blocks as the DC-DC conversion circuit, it is described
Second input terminal of the second port of 5th power electronics building blocks as the DC-DC conversion circuit, the 5th power electronics
The third port of building blocks and the 4th port of the 6th power electronics building blocks or the third end of the 6th power electronics building blocks
Mouthful connection, first output end of the first port of the 6th power electronics building blocks as the DC-DC conversion circuit, described the
Second output terminal of the second port of six power electronics building blocks as the DC-DC conversion circuit；
First switch unit in the 5th power electronics building blocks is in first state, the 5th power electronics building blocks
In second switch unit it is in an off state, the third switch unit in the 5th power electronics building blocks is in the first shape
State；First switch unit in the 6th power electronics building blocks is in first state, in the 6th power electronics building blocks
Second switch unit is in the conductive state, and the third switch unit in the 6th power electronics building blocks is in first state.
Preferably, power electronics building blocks are applied in 3L-NPC circuit, and the 3L-NPC circuit includes the 7th power electronics
Building blocks, the 8th power electronics building blocks and the 9th power electronics building blocks；
The third port of the 7th power electronics building blocks or the 4th port and the institute of the 7th power electronics building blocks
State the first port connection of the 9th power electronics building blocks, the second port of the 7th power electronics building blocks and the 8th electric power
The first port of electronic building blocks connects, the third port of the 8th power electronics building blocks or the 8th power electronics building blocks
The 4th port connect with the second port of the 9th power electronics building blocks；
First switch unit in the 7th power electronics building blocks is in first state, the 7th power electronics building blocks
In second switch unit it is in the conductive state, the third switch unit in the 7th power electronics building blocks is in the first shape
State；First switch unit in the 8th power electronics building blocks is in first state, in the 8th power electronics building blocks
Second switch unit is in the conductive state, and the third switch unit in the 8th power electronics building blocks is in first state；Institute
It states the first switch unit in the 9th power electronics building blocks and is in first state, second in the 9th power electronics building blocks opens
Pass unit is in an off state, and the third switch unit in the 9th power electronics building blocks is in first state.
Using technical solution provided by the embodiment of the present invention, the restructural power electronics building blocks of the topology include: first
Inverse conductivity type controls switch unit entirely, and second controls switch unit, first switch unit, second switch unit and the first electricity against conductivity type entirely
Feel unit.In the power electronics building blocks of the application, there is the connection relationship of setting, without connecting manually between each device
It connects, is conducive to avoid student resource design circuit occupancy duration too long.And the tool that the power electronics building blocks of the application are showed
The circuit topological structure of body controls against conductivity type switch unit and second depending on first entirely and controls against conductivity type the state of switch unit entirely,
And depend on the state of first switch unit and the on-off of second switch unit, that is, allow student to pass through the adjustment of this tittle,
The autonomous Topology Structure Design for carrying out circuit.In addition, when a part of some power electronics building blocks as entire experimental circuit,
It is also to be chosen and connected by student resource to the selection of external port.For example, being in first state in control first switch unit
Later, it controls switch unit and second entirely against conductivity type by first in power electronics building blocks and controls the connection pass of switch unit entirely against conductivity type
System can be used as common half-bridge cells it is found that choosing the first port of power electronics building blocks and second port.For another example when
Second switch unit is in an off state, when first switch unit is in first state, chooses the third end of power electronics building blocks
Mouth and the 4th port can be used as inductance.To sum up, the restructural power electronics building blocks of the topology of the application, allow to learn
Be born from it is main participate in circuit design, excite student design circuit operating experience, while student when building circuit again very
Conveniently, it is too long to can be avoided student resource design circuit occupancy duration, the inconvenient problem of the modification of circuit error.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of power electronics building blocks in the present invention；
Fig. 2 is a kind of a kind of structural schematic diagram of power electronics building blocks in specific occasion；
Fig. 3 is a kind of another structural schematic diagram of power electronics building blocks in specific occasion；
Fig. 4 is a kind of external interface schematic diagram of power electronics building blocks in specific occasion；
Fig. 5 is another structural schematic diagram of power electronics building blocks in the present invention；
Fig. 6 is the topological structure schematic diagram that power electronics building blocks are applied in Buck conversion circuit；
Fig. 7 is the port connection schematic diagram between the first power electronics building blocks and the second power electronics building blocks in Fig. 6；
Fig. 8 is the topological structure schematic diagram that power electronics building blocks are applied in boost type translation circuit；
Fig. 9 is the topological structure schematic diagram that power electronics building blocks are applied in DC-DC conversion circuit；
Figure 10 is the topological structure schematic diagram that power electronics building blocks are applied to T-type three-level structure；
Figure 11 is the port connection schematic diagram between two power electronics building blocks in Figure 10；
Figure 12 is the topological structure schematic diagram that power electronics building blocks are applied in 3L-NPC circuit.
Specific embodiment
Core of the invention is to provide a kind of power electronics building blocks, allows student resource to participate in the design of circuit, excites
Student designs the operating experience of circuit, while student is again very convenient when building circuit, can be avoided student resource design electricity
Road occupancy duration is too long, the inconvenient problem of the modification of circuit error.
In order to enable those skilled in the art to better understand the solution of the present invention, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.Obviously, described embodiments are only a part of the embodiments of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall within the protection scope of the present invention.
Referring to FIG. 1, Fig. 1 is a kind of structural schematic diagram of power electronics building blocks in the present invention, the power electronics building blocks packet
Include: first controls switch unit 10 against conductivity type entirely, and second controls switch unit 20, first switch unit 30, second switch against conductivity type entirely
Unit 40 and the first inductance unit 50；
First controls first port of the first end of switch unit 10 as power electronics building blocks, second end conduct against conductivity type entirely
4th port of power electronics building blocks；The first end and second end of first switch unit 30 control switch against conductivity type with first entirely
The second end of unit 10 connects, and the second end that the third end of first switch unit 30 controls switch unit 20 against conductivity type with second entirely connects
It connects and the second port as power electronics building blocks, the 4th end of first switch unit 30 controls switch against conductivity type with second respectively entirely
The first end of unit 20, the first end of the first inductance unit 50 and the first end connection of second switch unit 40, second switch
The second end of unit 40 is connect with the second end of the first inductance unit 50 and the third port as power electronics building blocks；
First controlled entirely against conductivity type switch unit 10 and second controlled entirely against conductivity type switch unit 20 specific device composition can
To be set and be adjusted as needed, such as in the embodiment of Fig. 2, first to control switch unit 10 entirely against conductivity type include the
One NMOS tube Q1 and antiparallel first diode D1, second controlled entirely against conductivity type switch unit 20 include the second NMOS tube Q2 with
And antiparallel second diode D2,
Specifically, the grid of the first NMOS tube Q1 controls the control terminal of switch unit 10 as first entirely against conductivity type, first
The source electrode of NMOS tube Q1 is connect with the anode of first diode D1, and controls the second of switch unit 10 entirely against conductivity type as first
End, the drain electrode of the first NMOS tube Q1 is connect with the cathode of first diode D1, and controls switch unit 10 entirely against conductivity type as first
First end；The grid of second NMOS tube Q2 controls the control terminal of switch unit 20, the second NMOS tube Q2 as second entirely against conductivity type
Source electrode connect with the anode of the second diode D2, and control the second end of switch unit 20 entirely against conductivity type as second, second
The drain electrode of NMOS tube Q2 is connect with the cathode of the second diode D2, and controls the first of switch unit 20 entirely against conductivity type as second
End.
For another example in the embodiment of Fig. 3, the switch of the full control in switch unit is controlled as inverse conductivity type using IGBT entirely, in addition,
MCT can also be used in practical application, control switchs entirely by IGCT, SHIT etc..With the diode of full control switch reverse parallel connection, can be
The body diode of full control switch itself, is also possible to external diode, does not influence implementation of the invention.
First switch unit 30 has two states, wherein when the second end and first switch list of first switch unit 30
It is connected between 4th end of member 30, and is turned off between the first end of first switch unit 30 and the third end of first switch unit 30
When, it is the first state of first switch unit 30.Correspondingly, when the second end and first switch unit 30 of first switch unit 30
The 4th end between turn off, and when being connected between the first end of first switch unit 30 and the third end of first switch unit 30,
For the second state of first switch unit 30.First switch unit 30 is functionally equivalent to a double-pole single throw.It can be with
Find out, by switching the state of first switch unit 30, just changes the circuit connection inside power electronics building blocks, and then reconstruct
Different topological structures.
In addition, further include the first inductance unit 50 and second switch unit 40 in parallel therewith in power electronics building blocks,
First inductance unit 50 may include an inductive element or the combination for multiple inductive elements, can be controllable impedance, consolidates
Determine inductance etc., does not influence implementation of the invention.It only include a fixed electricity such as in Fig. 2 and Fig. 3, in the first inductance unit 50
Feel Lr.Second switch unit 40 is functionally equivalent to a single-pole single-throw switch (SPST), and when conducting is just short by the first inductance unit 50
Road, when shutdown, make the first inductance unit 50 be able to use in access circuit.
As can be seen that the setting adjustment of three steps can be carried out when power electronics building blocks are accessed circuit.
One is the state of selected first switch unit 30 and the on-off of second switch unit 40；
The second is defining the driving signal that controller is sent, switch is controlled against conductivity type by driving signal adjustable first entirely
Unit 10 and second control switch unit 20 entirely against conductivity type state, driving signal is usually pwm signal, certainly, in specific field
It is also possible to the driving signal of other forms in conjunction.Fig. 4 is a kind of external interface schematic diagram of the power electronics building blocks of the application,
Controller can control switch unit 10 entirely to first against conductivity type by this interface of PWM1 and send driving signal, to first against conductivity type
Full control switch unit 10 is controlled.Correspondingly, switch unit 20 can be controlled entirely against conductivity type to second by PWM2 this interface
Driving signal is sent, switch unit 20 is controlled entirely against conductivity type to second and controls.Such as is respectively driven by two-way pwm signal
One controls switch unit 10 against conductivity type and second controls IGBT in switch unit 20 against conductivity type entirely entirely, so that power electronics building blocks are made
For the use of half-bridge component.Switch unit 10 and second is for another example controlled against conductivity type against conductivity type by two-way driving signal control first entirely
IGBT in full control switch unit 20 is turned off, so that power electronics building blocks are used as half diode bridge.
The third is selection power electronics building blocks need the port with external connection, power electronics building blocks in this kind of embodiment
With first port, second port, third port and the 4th port, A, B, C, D are represented sequentially as in Fig. 2 and Fig. 3.
This application provides a kind of power electronics building blocks that topology is restructural, comprising: first controls switch unit against conductivity type entirely
10, second controls switch unit 20, first switch unit 30, second switch unit 40 and the first inductance unit 50 against conductivity type entirely.
In the power electronics building blocks of the application, there is the connection relationship of setting between each device, without connection manually, has been conducive to
Student resource design circuit is avoided to occupy duration too long.And the specific circuit that the power electronics building blocks of the application are showed is opened up
Structure is flutterred, switch unit 10 and second is controlled against conductivity type entirely depending on first and controls against conductivity type the state of switch unit 20 entirely, and depend on
In the state of first switch unit 30 and the on-off of second switch unit 40, that is, student is allowed to pass through the adjustment of this tittle, from
The main Topology Structure Design for carrying out circuit.In addition, when a part of some power electronics building blocks as entire experimental circuit,
Selection to external port is also to be chosen and connected by student resource.For example, being in first state in control first switch unit 30
Later, it controls switch unit 10 and second entirely against conductivity type by first in power electronics building blocks and controls the company of switch unit 20 entirely against conductivity type
Relationship is connect it is found that common half-bridge cells can be used as by choosing the first port of power electronics building blocks and second port.Again
Such as when second switch unit 40 is in an off state, and first switch unit 30 is in first state, power electronics building blocks are chosen
Third port and the 4th port can use as inductance.To sum up, the restructural power electronics product of the topology of the application
Wood allows student resource to participate in the design of circuit, excites the operating experience that student designs circuit, while student is building circuit
When it is again very convenient, can be avoided student resource design circuit and occupy that duration is too long, the inconvenient problem of the modification of circuit error.
In a kind of specific embodiment of the invention, Fig. 5 is seen, further includes: third switch unit 60, the first energy storage
Unit 70 and second energy-storage units 80；
The first end that the first end of third switch unit 60 controls against conductivity type switch unit 10 with first entirely is connect, third switch
The third end of unit 60 is connect with the first end of first energy-storage units 70, and the second end of third switch unit 60 is with second against conductivity type
The second end connection of full control switch unit 20, the 4th end of third switch unit 60 and the second end of second energy-storage units 80 connect
It connects, the second end of first energy-storage units 70 is connect and the as power electronics building blocks the 5th with the first end of second energy-storage units 80
Port；
It is connected between the first end of third switch unit 60 and the third end of third switch unit 60, and third switch unit
It is the first state of third switch unit 60 when being connected between 60 second end and the 4th end of third switch unit 60；Third
Turned off between the first end of switch unit 60 and the third end of third switch unit 60, and the second end of third switch unit 60 with
It is the second state of third switch unit 60 when being turned off between the 4th end of third switch unit 60.
In view of other than inverse conductivity type controls switch unit and perceptual component entirely, energy storage component is also Power Electronic Experimentation
In the component that often needs to use, therefore, the power electronics building blocks in this kind of embodiment include first energy-storage units 70,
Two energy-storage units 80 and third switch unit 60.It, can be so that first when third switch unit 60 is in first state
Energy-storage units 70 and/or second energy-storage units 80 are connected in circuit.Fifth port indicates with N in this application, fifth port
It is usually used as neutral point in circuit.
Common energy storage component is capacitor and battery, i.e. first energy-storage units 70 can be first capacitor or the first electricity
Pond；Second energy-storage units 80 can be the second capacitor or the second battery.
Wherein, when first energy-storage units 70 are first capacitor, the first end of first capacitor is as first energy-storage units 70
First end, second end of the second end of first capacitor as first energy-storage units 70, when first energy-storage units 70 be first electricity
Chi Shi, first end of the anode of the first battery as first energy-storage units 70, the cathode of the first battery is as first energy-storage units
70 second end；
When second energy-storage units 80 be the second capacitor when, the first end of the second capacitor as second energy-storage units 80 first
End, second end of the second end of the second capacitor as second energy-storage units 80, when second energy-storage units 80 are the second battery, the
First end of the anode of two batteries as second energy-storage units 80, the cathode of the second battery as second energy-storage units 80 second
End.
Capacitor can be the capacitor of polarized, be also possible to non-polar capacitor, such as the embodiment of Fig. 2 and Fig. 3
In, first energy-storage units 70 and second energy-storage units 80 are polarized capacitor, are respectively designated as C1 and C2.When being chosen for electricity
Chi Shi can be one-shot battery and be also possible to secondary cell, do not influence implementation of the invention.
First switch unit 30, second switch unit 40 and third switch unit 60 successively indicate in Fig. 2 and Fig. 3
For K1, K2 and K3.In Fig. 2 and Fig. 3, first switch unit 30 and third switch unit 60 are first state, the
Two switch units 40 are off-state.
In practical applications, the mechanical switch such as relay can be used, or use MOSFET, the semiconductors such as IGBT are controllable
Switch is to realize these three switch units.Although the switching speed in view of relay is relatively slow, conducting resistance and parasitism electricity
Rong Jun is smaller, and power electronics building blocks carry out topological structure switching when can't switch it is too frequent, that is, do not need frequency
Operation is executed to these three switch units numerously, therefore can usually choose relay to realize these three switch units.For example,
It, can be using the first controlled terminal of the relay as the first of second switch unit 40 when second switch unit 40 is relay
End, using the second controlled terminal of the relay as the second end of second switch unit 40, the control by controlling the relay is returned
The turn-on and turn-off on road realize the control of the turn-on and turn-off to the controlled circuit of the relay.And for first switch unit
30 or third switch unit 60 for, usually can be using two relays or the relay with double controlled circuits is come real
It is existing.
It should also be noted that, when controlling the on-off of control loop of relay, it can be using the side for sending electric signal
Formula controls, and can also be controlled by way of manually adjusting mechanical structure.Still it is with second switch unit 40 convenient for description
Example, such as one end of transmission parts are connect with key or driving lever, the control loop connection of the other end and relay, by pressing
Key stirs driving lever, so that transmission parts act, and then the control loop of transmission parts meeting closing relay.For another example Fig. 4
Embodiment in, by TX and RX interface input control signal, in power electronics building blocks in the logic circuit that sets can receive
Signal is controlled, and then logic circuit is according to the on-off of the control loop of the content-control relay of control signal.
Certainly, either by the way that still by way of electric signal to first, second, third is switched by way of mechanical structure
Unit is controlled, and is more traditional control mode, thus the application do not provide this member control circuit schematic diagram or
The schematic diagram of mechanical structure.
In a kind of specific embodiment of the invention, further include control entirely with first against conductivity type respectively switch unit 10 with
And second controlled entirely against conductivity type switch unit 20 connection, for by received control signal control first against conductivity type entirely control switch list
The Drive Protecting Circuit of the state of switch unit 20 is controlled in the state of member 10 and control second against conductivity type entirely.
Specifically, it is pwm control signal that Drive Protecting Circuit is usually received, signal can be filtered, amplification etc.
Pretreatment operation, then export and control switch unit 10 entirely to first against conductivity type and second control the control of switch unit 20 entirely against conductivity type
End.
It should be noted that the scheme of the application is in practical applications, the structure for the power electronics building blocks usually selected is
There are three the structures of switch unit for the tool of Fig. 5.Specifically, can be as shown in Figure 2 or Figure 3, each electric power in subsequent embodiment
Electronic building blocks are that there are three the power electronics building blocks of the structure of switch unit for tool.
It can be found in Fig. 6, power electronics building blocks are applied in Buck conversion circuit, and Buck conversion circuit includes the first electricity
Power electronic building blocks and the second power electronics building blocks；
The first port of first power electronics building blocks is connect with the anode of the first power supply VCC1, the first power electronics building blocks
Second port is connect with the second port of the cathode of the first power supply VCC1 and the second power electronics building blocks respectively, the first electric power electricity
The third port of subproduct wood is connect with the fifth port of the second power electronics building blocks；The fifth port of second power electronics building blocks with
The first end connection of first load R1, the second port of the second power electronics building blocks are connect with the second end of the first load R1；
Fig. 7 shows the port connection schematic diagram between the first power electronics building blocks and the second power electronics building blocks.
First switch unit in first power electronics building blocks is in first state；Second in first power electronics building blocks
Switch unit is in an off state, and the third switch unit in the first power electronics building blocks is in first state；Second electric power electricity
Third switch unit in subproduct wood is in first state.
It should be pointed out that the Buck conversion circuit in this kind of embodiment is only the buck in a kind of specific occasion
Translation circuit can connect into other forms by multiple power electronics building blocks and other components in other occasions
Buck conversion circuit.The Buck conversion circuit by driving signal control in the first power electronics building blocks first against conductivity type
Second in full control switch unit and the first power electronics building blocks controls switch unit entirely against conductivity type to realize decompression, specifically,
Q1 conducting in control figure 6, when Q2 is turned off, inductance Lr energy storage, control Q1 shutdown, when Q2 is connected, inductance Lr releases energy.One switch
In period, when the charging charge of the capacitor in the second power electronics building blocks is higher than discharge charge, capacitance voltage is increased, until reaching
Charge and discharge electric equilibrium, correspondingly, capacitance voltage is gradually reduced when the discharge charge in a cycle is higher than charging charge.
Other than Buck conversion circuit, boost type translation circuit and step-down/up type translation circuit are power electronics
The circuit often needed to use in experiment, the electric power electronic module of the application can construct.
Such as in a kind of specific embodiment of the invention, Fig. 8 is seen, power electronics building blocks become applied to boost type
It changes in circuit, boost type translation circuit includes third power electronics building blocks and the 4th power electronics building blocks；
The first port of third power electronics building blocks is connect with the first end of the second load R2, third power electronics building blocks
Second port is connect with the second port of the second end of the second load R2 and the 4th power electronics building blocks respectively, third electric power electricity
The third port of subproduct wood is connect with the fifth port of the 4th power electronics building blocks；The fifth port of 4th power electronics building blocks with
The anode connection of second source VCC2, the second port of the 4th power electronics building blocks are connect with the cathode of second source VCC2.
First switch unit in third power electronics building blocks is in first state, and second in third power electronics building blocks
Switch unit is in an off state, and the third switch unit in third power electronics building blocks is in first state；4th electric power electricity
Third switch unit in subproduct wood is in first state.
For another example in Fig. 9, power electronics building blocks are applied in DC-DC conversion circuit, and DC-DC conversion circuit includes the 5th electricity
Power electronic building blocks and the 6th power electronics building blocks can realize that output voltage is higher or lower than input voltage by adjusting duty ratio
Purpose.
Specifically, first input end of the first port of the 5th power electronics building blocks as DC-DC conversion circuit, the 5th electricity
Second input terminal of the second port of power electronic building blocks as DC-DC conversion circuit, the third port of the 5th power electronics building blocks
It is connect with the third port of the 4th port of the 6th power electronics building blocks or the 6th power electronics building blocks, the 6th power electronics building blocks
First output end of the first port as DC-DC conversion circuit, the second port of the 6th power electronics building blocks becomes as DC-DC
Change the second output terminal of circuit；
First switch unit in 5th power electronics building blocks is in first state, and second in the 5th power electronics building blocks
Switch unit is in an off state, and the third switch unit in the 5th power electronics building blocks is in first state；6th electric power electricity
First switch unit in subproduct wood is in first state, and the second switch unit in the 6th power electronics building blocks is on shape
State, the third switch unit in the 6th power electronics building blocks are in first state.
It should be noted that the DC-DC conversion circuit in this kind of embodiment may be designed in T-type three-level structure,
The 5th power electronics building blocks of Fig. 9, the two electric power electricity in Figure 10 are replaced using two power electronics building blocks in Figure 10
The port connection schematic diagram of subproduct wood can be found in shown in Figure 11, wherein the No.1 that the component in dotted line frame in Figure 10 is Figure 11
Component in power electronics building blocks, remaining part are the component in No. two power electronics building blocks in Figure 11.
Circuit topology in aforementioned embodiments is required to two power electronics building blocks in other embodiments can also
It, can to there is more power electronics building blocks to participate in the building of circuit topology, such as in a kind of specific embodiment of the invention
Refering to fig. 12, power electronics building blocks are applied in 3L-NPC circuit, and 3L-NPC circuit includes the 7th power electronics building blocks, the 8th electricity
Power electronic building blocks and the 9th power electronics building blocks.
The third port of 7th power electronics building blocks or the 4th port of the 7th power electronics building blocks and the 9th electric power electricity
The first port of subproduct wood connects, and the second port of the 7th power electronics building blocks and the first port of the 8th power electronics building blocks connect
It connects, the 4th port and the 9th power electronics building blocks of the third ports of the 8th power electronics building blocks or the 8th power electronics building blocks
Second port connection；
First switch unit in 7th power electronics building blocks is in first state, and second in the 7th power electronics building blocks
Switch unit is in the conductive state, and the third switch unit in the 7th power electronics building blocks is in first state；8th electric power electricity
First switch unit in subproduct wood is in first state, and the second switch unit in the 8th power electronics building blocks is on shape
State, the third switch unit in the 8th power electronics building blocks are in first state；First switch in 9th power electronics building blocks
Unit is in first state, and the second switch unit in the 9th power electronics building blocks is in an off state, the 9th power electronics product
Third switch unit in wood is in first state.
In aforementioned embodiments, with Buck conversion circuit, for boost type translation circuit 3L-NPC circuit etc., to electric power
The building mode of electronic building blocks has carried out for example, in other specific occasions, and power electronics building blocks can have other completely
The building mode of form, table one are the topology citing of power electronics building blocks, it should be noted that table one was listed is commonly to open up
It flutters, not indicates whole topological forms.For example, it is desired to choose power electronics building blocks as capacitor in use, in addition in table one
A, the selection of the port B, it is also an option that be A, N-port, or be selection B, N-port.In table one, the 0 of K1 indicates first
Switch unit 30 is first state, and the 1 of K1 indicates that first switch unit 30 is the second state, and the 0 of K2 indicates second switch unit
40 be off-state, and the 1 of K2 indicates that second switch unit 40 is on state, and the 0 of K3 indicates that third switch unit 60 is first
State, the 1 of K3 indicate that third switch unit 60 is the second state.Playing hook expression can be used end of the port as external connection
Mouthful.
Table one: the topology citing of power electronics building blocks
It should also be noted that, herein, relational terms such as first and second and the like are used merely to one
Entity or operation are distinguished with another entity or operation, without necessarily requiring or implying between these entities or operation
There are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to contain
Lid non-exclusive inclusion, so that the process, article or the equipment that include a series of elements not only include those elements, and
And further include other elements that are not explicitly listed, or further include for this process, article or equipment intrinsic want
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including described want
There is also other identical elements in the process, method, article or equipment of element.
Used herein a specific example illustrates the principle and implementation of the invention, and above embodiments are said
It is bright to be merely used to help understand technical solution of the present invention and its core concept.It should be pointed out that for the common of the art
, without departing from the principle of the present invention, can be with several improvements and modifications are made to the present invention for technical staff, these
Improvement and modification are also fallen within the protection scope of the claims of the present invention.
Claims (10)
1. a kind of power electronics building blocks characterized by comprising first controls switch unit against conductivity type entirely, and second controls entirely against conductivity type
Switch unit, first switch unit, second switch unit and the first inductance unit；
Described first controls first port of the first end of switch unit as power electronics building blocks against conductivity type entirely, and second end is as institute
State the 4th port of power electronics building blocks；The first end and second end of the first switch unit are with described first against conductivity type
The second end connection of full control switch unit, switch unit is controlled against conductivity type in the third end of the first switch unit and described second entirely
Second end connection and the second port as the power electronics building blocks, the 4th end of the first switch unit respectively with institute
State the second first end for controlling switch unit entirely against conductivity type, the first end of first inductance unit and the second switch unit
First end connection, the second end of the second switch unit connect and with the second end of first inductance unit as described
The third port of power electronics building blocks；
It is connected between the second end of the first switch unit and the 4th end of the first switch unit, and the first switch
It is the first shape of the first switch unit when being turned off between the first end of unit and the third end of the first switch unit
State；It is turned off between the second end of the first switch unit and the 4th end of the first switch unit, and the first switch
It is the second shape of the first switch unit when being connected between the first end of unit and the third end of the first switch unit
State.
2. power electronics building blocks according to claim 1, which is characterized in that further include: third switch unit, the first energy storage
Unit and second energy-storage units；
The first end that the first end of the third switch unit controls against conductivity type switch unit with described first entirely is connect, the third
The third end of switch unit is connect with the first end of the first energy-storage units, the second end of the third switch unit with it is described
Second controls the second end connection of switch unit, the 4th end of the third switch unit and the second energy-storage units against conductivity type entirely
Second end connection, the second end of the first energy-storage units connect with the first end of the second energy-storage units and as described
The fifth port of power electronics building blocks；
It is connected between the first end of the third switch unit and the third end of the third switch unit, and the third switchs
It is the first shape of the third switch unit when being connected between the second end of unit and the 4th end of the third switch unit
State；It is turned off between the first end of the third switch unit and the third end of the third switch unit, and the third switchs
It is the second shape of the third switch unit when being turned off between the second end of unit and the 4th end of the third switch unit
State.
3. power electronics building blocks according to claim 1, which is characterized in that described first controls switch unit packet against conductivity type entirely
Include the first NMOS tube and antiparallel first diode, described second controlled entirely against conductivity type switch unit include the second NMOS tube with
And antiparallel second diode；
The grid of first NMOS tube controls the control terminal of switch unit, first NMOS tube as described first entirely against conductivity type
Source electrode connect with the anode of the first diode, and control the second end of switch unit entirely against conductivity type as described first, institute
The drain electrode for stating the first NMOS tube is connect with the cathode of the first diode, and controls switch unit entirely against conductivity type as described first
First end；The grid of second NMOS tube controls the control terminal of switch unit as described second entirely against conductivity type, and described second
The source electrode of NMOS tube is connect with the anode of second diode, and controls the second of switch unit entirely against conductivity type as described second
End, the drain electrode of second NMOS tube is connect with the cathode of second diode, and is controlled and opened entirely against conductivity type as described second
Close the first end of unit.
4. power electronics building blocks according to claim 2, which is characterized in that the first energy-storage units be first capacitor or
First battery；The second energy-storage units are the second capacitor or the second battery；
Wherein, when the first energy-storage units are the first capacitor, the first end of the first capacitor is as described first
The first end of energy-storage units, second end of the second end of the first capacitor as the first energy-storage units, when described first
When energy-storage units are first battery, first end of the anode of first battery as the first energy-storage units is described
Second end of the cathode of first battery as the first energy-storage units；
When the second energy-storage units are second capacitor, the first end of second capacitor is as the second energy storage list
The first end of member, second end of the second end of second capacitor as the second energy-storage units, when the second energy storage list
When member is second battery, first end of the anode of second battery as the second energy-storage units, second electricity
Second end of the cathode in pond as the second energy-storage units.
5. power electronics building blocks according to claim 1, which is characterized in that the second switch unit is relay, institute
First end of the first controlled terminal of relay as the second switch unit is stated, the second controlled terminal of the relay is as institute
The second end for stating second switch unit, the turn-on and turn-off of the control loop by controlling the relay, realize to it is described after
The control of the turn-on and turn-off in the controlled circuit of electric appliance.
6. power electronics building blocks according to claim 1, which is characterized in that further include, respectively with described first against conductivity type
Full control switch unit and described second switch unit connection is controlled entirely against conductivity type, described in controlling by received control signal
First controls the state of switch unit entirely against conductivity type and controls the driving guarantor for the state that described second controls switch unit against conductivity type entirely
Protection circuit.
7. power electronics building blocks according to claim 2, which is characterized in that power electronics building blocks are applied to buck converter
In circuit, the Buck conversion circuit includes the first power electronics building blocks and the second power electronics building blocks；
The first port of the first power electronics building blocks is connect with the first positive pole, and the of the first power electronics building blocks
Two-port netwerk is connect with the second port of the cathode of first power supply and the second power electronics building blocks respectively, and described first
The third port of power electronics building blocks is connect with the fifth port of the second power electronics building blocks；The second power electronics product
The first end that the fifth port of wood is loaded with first is connect, the second port of the second power electronics building blocks and described first negative
The second end of load connects；
First switch unit in the first power electronics building blocks is in first state；In the first power electronics building blocks
Second switch unit is in an off state, and the third switch unit in the first power electronics building blocks is in first state；Institute
The third switch unit stated in the second power electronics building blocks is in first state.
8. power electronics building blocks according to claim 2, which is characterized in that power electronics building blocks are converted applied to boost type
In circuit, the boost type translation circuit includes third power electronics building blocks and the 4th power electronics building blocks；
The first port of the third power electronics building blocks is connect with the first end of the second load, the third power electronics building blocks
Second port connect respectively with the second port of the second end of the second load and the 4th power electronics building blocks, institute
The third port for stating third power electronics building blocks is connect with the fifth port of the 4th power electronics building blocks；4th electric power
The anode of the fifth ports of electronic building blocks and second source connects, the second port of the 4th power electronics building blocks and described the
The cathode of two power supplys connects；
First switch unit in the third power electronics building blocks is in first state, in the third power electronics building blocks
Second switch unit is in an off state, and the third switch unit in the third power electronics building blocks is in first state；Institute
The third switch unit stated in the 4th power electronics building blocks is in first state.
9. power electronics building blocks according to claim 2, which is characterized in that power electronics building blocks are converted applied to DC-DC
In circuit, the DC-DC conversion circuit includes the 5th power electronics building blocks and the 6th power electronics building blocks；
First input end of the first port of the 5th power electronics building blocks as the DC-DC conversion circuit, the described 5th
Second input terminal of the second port of power electronics building blocks as the DC-DC conversion circuit, the 5th power electronics building blocks
Third port and the 6th power electronics building blocks the 4th port or the 6th power electronics building blocks third port connect
It connects, first output end of the first port of the 6th power electronics building blocks as the DC-DC conversion circuit, the 6th electricity
Second output terminal of the second port of power electronic building blocks as the DC-DC conversion circuit；
First switch unit in the 5th power electronics building blocks is in first state, in the 5th power electronics building blocks
Second switch unit is in an off state, and the third switch unit in the 5th power electronics building blocks is in first state；Institute
It states the first switch unit in the 6th power electronics building blocks and is in first state, second in the 6th power electronics building blocks opens
Pass unit is in the conductive state, and the third switch unit in the 6th power electronics building blocks is in first state.
10. power electronics building blocks according to claim 2, which is characterized in that power electronics building blocks are applied to 3L-NPC electricity
Lu Zhong, the 3L-NPC circuit include the 7th power electronics building blocks, the 8th power electronics building blocks and the 9th power electronics building blocks；
4th port of the third port of the 7th power electronics building blocks or the 7th power electronics building blocks and described the
The first port of nine power electronics building blocks connects, the second port of the 7th power electronics building blocks and the 8th power electronics
The first ports of building blocks connects, and the of the third port of the 8th power electronics building blocks or the 8th power electronics building blocks
Four ports are connect with the second port of the 9th power electronics building blocks；
First switch unit in the 7th power electronics building blocks is in first state, in the 7th power electronics building blocks
Second switch unit is in the conductive state, and the third switch unit in the 7th power electronics building blocks is in first state；Institute
It states the first switch unit in the 8th power electronics building blocks and is in first state, second in the 8th power electronics building blocks opens
Pass unit is in the conductive state, and the third switch unit in the 8th power electronics building blocks is in first state；Described 9th
First switch unit in power electronics building blocks is in first state, the second switch unit in the 9th power electronics building blocks
In an off state, the third switch unit in the 9th power electronics building blocks is in first state.
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