CN106160490B - A kind of dual input list output DC-DC converter - Google Patents
A kind of dual input list output DC-DC converter Download PDFInfo
- Publication number
- CN106160490B CN106160490B CN201610510436.4A CN201610510436A CN106160490B CN 106160490 B CN106160490 B CN 106160490B CN 201610510436 A CN201610510436 A CN 201610510436A CN 106160490 B CN106160490 B CN 106160490B
- Authority
- CN
- China
- Prior art keywords
- low
- shunting
- bottom end
- pressure side
- submodule
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000009977 dual effect Effects 0.000 title claims abstract description 17
- 239000003990 capacitor Substances 0.000 description 8
- 230000005611 electricity Effects 0.000 description 6
- 238000012913 prioritisation Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000004088 simulation Methods 0.000 description 4
- 238000001914 filtration Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/337—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in push-pull configuration
- H02M3/3376—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in push-pull configuration with automatic control of output voltage or current
- H02M3/3378—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in push-pull configuration with automatic control of output voltage or current in a push-pull configuration of the parallel type
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0083—Converters characterised by their input or output configuration
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
The present invention is based on modular multilevel DC-DC converter topologys to propose a kind of dual input list output DC-DC converter, including shunting bridge arm, the first low tension potential source, the second low tension potential source, high-pressure side inductance, the first low-pressure side inductance, the second low-pressure side inductance, High voltage output load.The structure is based on voltage, electric current superposition theorem, by increasing the additional voltage source for possessing independence flexibly to control input voltage.Two shunting bridge arms constitute secondary power ring, and balanced to form partial pressure to carry AC compounent distribution power in secondary power ring, two shunting bridge arms load to form primary power ring with High voltage output respectively, to transmit dc power.
Description
Technical field
The present invention relates to field of power electronics more particularly to a kind of dual input list based on push-pull type M2DC topological structures are defeated
Go out DC-DC converter.
Background technology
Modular multilevel converter has been achieved for important application in power transmission, is clamped down on as middle pressure neutral point
The replacer equal to each other of three-level converter.Link between exchange and exchange at present there is many inconvenient and hidden danger,
So for today that direct current transmission is propagated its belief on a large scale, DC-DC converter on the basis of Modular multilevel converter is more worth
It must study.Modular multilevel converter is the converter mode of rising in recent years, because its modular topology used can
Voltage class is adjusted easily with the number of variations by submodule, can also smoothly be moved in the case where keeping converter operation
Except the half-bridge of failure.Because the voltage of each unit is clamped down on, synchro timer is not needed yet to replace.Modular multilevel becomes
Parallel operation uses the half-bridge or full-bridge submodule of capacitor.
Push-pull type modular multilevel DC-DC converter is to convert field in DC-DC based on Modular multilevel converter
A kind of New Topological.It makes power has between direct current and exchange mutually to turn using the orthogonality of power between different frequency
The method changed.However DC-DC converter in the prior art is the structure of single-input single-output, input mode is single, can not
Meet the access requirement of additional input source.For example wind-power electricity generation and solar power generation be when all can serve as power input, existing skill
Art can only select setting input.
Invention content
The technical problem to be solved by the present invention is to increase the degree of freedom of input source in more level DC-DC converters, from
And can more flexible ground control output end voltage, and distribute trend.Single input can be used, dual input can also be used, made
It obtains system stability and flexibility is promoted.Two input sources of the invention are mutual indepedent, do not interfere with each other, and can use completely not
Identical energy source carries out low-voltage direct input.Such as when wind-power electricity generation and solar power generation all can serve as power input
Using two input sources, the existing energy and single output are taken full advantage of.
The present invention is based on push-pull type M2DC topological structures to provide a kind of dual input list output DC-DC converter, including point
Flow bridge arm, the first low tension potential source, the second low tension potential source, high-pressure side inductance, the first low-pressure side inductance, the second low-pressure side electricity
Sense, High voltage output load；
Two shunting bridge arms include the top shunting submodule group being serially connected, top bottom end shunting submodule
Group, lower bottom end shunt submodule group；Top shunting submodule group and the top bottom end of two bridge arms shunt submodule group
Connected one end is connected by the first low-pressure side inductance, and the other end is connected by the high-pressure side inductance, two bridges
One end that the lower bottom end shunting submodule group of arm is connected with top bottom end shunting submodule group passes through second low-pressure side electricity
Sense is connected, and the other end is connected directly；
The High voltage output load is accessed between the high-pressure side inductance centre cap and ground,
First low pressure is accessed between the first low-pressure side inductance and the centre cap of the second low-pressure side inductance
Voltage source,
The second low tension potential source, first low pressure are accessed between the second low-pressure side inductance centre cap and ground
Voltage source and the second low tension potential source are mutual indepedent；
Two shunting bridge arms constitute secondary power ring, and work(is distributed in secondary power ring to carry AC compounent
Rate is balanced to form partial pressure, and two shunting bridge arms load to form primary power ring with High voltage output respectively, straight to transmit
Flow power.
As a kind of prioritization scheme, the top shunting submodule group, top bottom end shunting submodule group, lower bottom end point
Flowing submodule group all includes respectively：The half bridge switching circuit submodule for the capacitor that one or more is serially connected.
As a kind of prioritization scheme, the top shunting submodule group, top bottom end shunting submodule group, lower bottom end point
Flowing submodule group all includes respectively：The full-bridge circuit submodule for the capacitor that one or more is serially connected.
As a kind of prioritization scheme, the top shunting submodule group, top bottom end shunting submodule group, lower bottom end point
Flowing submodule group all includes respectively：The capacitance full-bridge circuit submodule with transformer that one or more is serially connected.
The crucial protection point of the present invention is that a kind of dual input list based on push-pull type modular multilevel DC converter is defeated
Go out DC-DC converter structure.It adds another voltage source V between original low-pressure side input source and groundlow1With it is defeated
Enter inductance Llow1Topological structure be of the invention to propose for the first time.It can be added on the basis of keeping Passive Power conversion
New input source Vlow1.It confirmed to input inductance in two bridge arm currents, 180 ° of angular differences each other, alternating current component difficultly flows into
Input source or output source ensure the waveform of input and output direct current to a certain extent, and confirmed two inputs from principle
Source Vlow1、Vlow2Mutual independence.A kind of new dual input list output DC-DC converter proposed by the present invention, this method are based on
Push-pull type M2DC topological structures are based on voltage, electric current superposition theorem with this configuration, by increasing the additional independence that possesses
Voltage source is flexibly to control input voltage.And by screening control program, obtain good control effect.
Description of the drawings
Fig. 1 is the dual input list output DC-DC converter topological structure that the present invention realizes；
Fig. 2 is the submodule concrete structure in converter topology of the present invention；
Fig. 3 is inverter power flowing signal of the present invention；
Fig. 4 is the principle of equal effects of converter submodule of the present invention；
Fig. 5 (a) and 5 (b) are the control block diagrams that converter of the present invention uses；
Fig. 6 (a), 6 (b), 6 (c), 6 (d) and 6 (e) are converter output voltage waveform of the present invention, the first low pressure respectively
Voltage source voltage oscillogram, the first low tension potential source filtering voltage oscillogram, the second low tension potential source voltage oscillogram and second
Low tension potential source filtering voltage oscillogram.
In figure：Vlow1- the first low tension potential source, Vlow2- the second low tension potential source, LhighHigh-pressure side inductance, Llow1- the first
Low-pressure side inductance, Llow2- the second low-pressure side inductance, VhighHigh voltage output loads.
Specific implementation mode
Below in conjunction with attached drawing, the present invention is described in detail in a manner of specific embodiment.Following embodiment will be helpful to
Those skilled in the art further understands the present invention, but the invention is not limited in any way.It should be pointed out that can be with
Modification structurally and functionally is carried out using other embodiments, or to embodiment enumerated herein, without departing from this hair
Bright scope and spirit
The present invention provides a kind of, and the dual input list output DC-DC based on push-pull type modular multilevel DC-DC topologys becomes
Parallel operation, it includes at least one low tension potential sources and use independently of push-pull type modular multilevel DC-DC converter input terminal
To connect the coupling inductance of additional electric potential source and original voltage source, and it is in parallel with additional electric potential source by inductance, and script two
The shunting submodule string that a bridge arm is in series.As depicted in figs. 1 and 2, a kind of dual input list output DC-DC converter, including point
Flow bridge arm, the first low tension potential source Vlow1, the second low tension potential source Vlow2, high-pressure side inductance Lhigh, the first low-pressure side inductance
Llow1, the second low-pressure side inductance Llow2, High voltage output supported Vhigh；
Two shunting bridge arms include the top shunting submodule group being serially connected, top bottom end shunting submodule
Group, lower bottom end shunt submodule group；Top shunting submodule group and the top bottom end of two bridge arms shunt submodule group
Connected one end is connected by the first low-pressure side inductance, and the other end is connected by the high-pressure side inductance, two bridges
One end that the lower bottom end shunting submodule group of arm is connected with top bottom end shunting submodule group passes through second low-pressure side electricity
Sense is connected, and the other end is connected directly；
The High voltage output load is accessed between the high-pressure side inductance centre cap and ground,
First low pressure is accessed between the first low-pressure side inductance and the centre cap of the second low-pressure side inductance
Voltage source,
The second low tension potential source, first low pressure are accessed between the second low-pressure side inductance centre cap and ground
Voltage source and the second low tension potential source are mutual indepedent；
Two shunting bridge arms constitute secondary power ring, and work(is distributed in secondary power ring to carry AC compounent
Rate is balanced to form partial pressure, and two shunting bridge arms load to form primary power ring with High voltage output respectively, straight to transmit
Flow power.
As a kind of prioritization scheme, the top shunting submodule group, top bottom end shunting submodule group, lower bottom end point
Flowing submodule group all includes respectively：The half bridge switching circuit submodule for the capacitor that one or more is serially connected.
As a kind of prioritization scheme, the top shunting submodule group, top bottom end shunting submodule group, lower bottom end point
Flowing submodule group all includes respectively：The full-bridge circuit submodule for the capacitor that one or more is serially connected.
As a kind of prioritization scheme, the top shunting submodule group, top bottom end shunting submodule group, lower bottom end point
Flowing submodule group all includes respectively：The capacitance full-bridge circuit submodule with transformer that one or more is serially connected.
As a kind of embodiment, the making of the dual input list output DC-DC converter includes the following steps：
S100:Such as Fig. 2 capacitors half bridge switching circuit is chosen as submodule, other available submodules also have capacitor
Full bridge structure and capacitance full bridge structure etc. with transformer.Structure shown in Fig. 2 is the capacitor half bridge switching circuit of classics
Structure, the structure exist
S200:These submodules are divided into two bridge arms in left and right, are carried out after being connected in series in parallel.The submodule of upper end 1-N
It is denoted as 1/2SM1、…、1/2SMN, it is known as top shunting submodule.And it is denoted as from the N+1 submodule to the N+M submodule
1/2SM1、…、1/2SMM, it is known as top bottom end shunting submodule.Next K submodule is denoted as 1/2SM1、…、1/
2SMK, referred to as lower bottom end shunt submodule.
S300:Two tops shunting submodule of two bridge arms is connected by high-pressure side inductance, two top bottom end point
It flows submodule by the first low-pressure side inductance to be connected, two lower part shunting submodules are connected by the second low-pressure side inductance, and will
Its underpart is connected directly.
S400:High voltage output load is accessed between high-pressure side inductance centre cap and ground, is taken out at low-pressure side inductance center
The first low tension potential source and the second low tension potential source are accessed between head, between the second low-pressure side inductance centre cap and ground.This reality
Any of the first low tension potential source, second low tension potential source, another short circuit can be accessed by applying in example；It can also first
Low tension potential source, the second low tension potential source all access.
S500:Two bridge arms constitute secondary power ring, to carry AC compounent in ring distribution power to be formed point
Pressure is balanced.Bridge arm and High voltage output load become primary power ring, to transmit dc power.It ultimately forms as shown in Figure 1
Topology diagram.
As shown in figure 3, the first low tension potential source V of DC terminallow1, the second low tension potential source Vlow2Be may be selected it is any or
The input terminal both accessed.The input current of first low tension potential source flows up, and is divided into left and right from the first low-pressure side inductance
Two-way.
Ptotal=Plow=Phigh (1)
Plow=VlowIlow (2)
Phigh=VhighIhigh (3)
By formula (1) to formula (3) it is recognised that high voltage side current is less than low-pressure side electric current.According to Kirchhoff's current law (KCL)
It is found that top bottom end separation way module necessarily has DC current to pass through, direction direction to that indicated in the drawings is opposite.It is again because high
Press side sense of current identical with figure, so should all there be upward DC component at top submodule both ends.Its direction and diagram
Direction is identical.
According to the nonuniformity (voltage is opposite with current direction) of the voltage of bottom end submodule and DC current, bottom end submodule
Block will obtain power from direct-current input power supplying.However in the case where considering lossless, input power should be completely transmitted to export
End.So either bottom end module or top module, in stable operation, the power for these submodules that circulate should
It is zero.It is easy to get according to deduction, when system is under stable state, the voltage on capacitance should be stationary value, as charge
Equilibrium state.It flows into the sum of the secondary power of submodule and primary power and should be zero.So froming the perspective of from this angle, due to secondary work(
The dc power that bottom end submodule absorbs has been transferred to top submodule by the presence of rate ring, the AC power circulated in its ring
Block, and it is sent to output end via high-pressure side inductance.The size of this portion of energy can be learnt by formula (4).
Psec=Ptotal-VlowIhigh (4)
Submodule is shunted for lower bottom end, is same reason.
If another bridge arm is ignored and do not seen for simplified model by Fig. 4, actually since the reason of symmetry, is not being examined
In the case of considering alternating component, a single only bridge arm can also be analyzed.
In the case of dual input, have：
Ptotal=Plow1+Plow2=Phigh (5)
By that can be obtained on figure：
Ilow1=Ihigh+I1 (6)
Known high voltage side current is the direct electric current for reaching output end.Directly from input terminal 1Vlow1Reach the energy of output end
Amount is the product of input terminal 1 voltage and high voltage side current.But it is different, in input terminal 1Vlow1Under also have input terminal
2Vlow2, energy that it is provided also is answered under consideration.
According to superposition theorem it is recognised that when only considering input source 2Vlow2When, input source 1 can be considered as short circuit.So can
To find out, is not had on the shunting submodule in top bottom end in parallel of input source 1 and come from input source 2Vlow2Electric current pass through.
So judging from the angle of power, the power that input source 2 reaches entrained by the electric current of outlet side by input source 1 is exactly to input
Source 2Vlow2The power directly provided.It is apparent from, value is the product of input terminal 2 voltage and high voltage side current.
Therefore, it can obtain：
Psec=Ptotal-Vlow1Ihigh-Vlow2Ilow1=Vlow1I1-Vlow2I2 (7)
As can be seen that secondary power ring can still play a role.And formula (7) also shows two of which bottom end shunting
Module equally becomes secondary power inscription of loop.
Such as Fig. 4, bottom end submodule and input terminal power supply and coupling inductance are singly seen, can it be approximatively considered as to one and risen
Press chopper circuit.
Since the switch opportunity of submodule upper and lower bridge arm IGBT in the block is complementation, so in practical Boost circuit, on
Bridge arm IGBT can ignore, only by its reversal connection diode in place (not considering capacitance discharge process at this time) in parallel.Since inductance exists
Mean power in a cycle is zero, so its average voltage is zero, can be obtained, capacitance voltage VC_bottomIt approximatively can be with
It regards as and bottom end submodule output voltage Vbottom_leftThere is following relationship：
Vbottom_left=DVC_bottom (8)
Wherein D is the duty cycle of switching of upper bridge arm IGBT.
However, because of V in formulabottom_leftRefer to the DC component of bottom end submodule voltage, and in fact,
vbottom_leftIn should contain the AC compounent of secondary power ring frequency, and the high fdrequency component that is formed between switch folding.So
These should be accounted for.
Such as Fig. 5 (a), two reference voltage components by addition, generation be entire bottom end shunting submodule ginseng
Examine voltage.This value and the real-time submodule output voltage measured relatively are obtained to the departure of bottom end submodule voltage.As a result,
By the adjusting of PI controllers, to obtain the duty ratio of entire IGBT switches.Certainly, because of upper and lower bridge arm in submodule
IGBT switches are complementary, so, it is only necessary to obtain a duty ratio.
By control block diagram it is known that it is actually antithetical phrase to exchange the generation link of reference voltage in bottom end shunting submodule
The control of module capacitance voltage, the controlling unit of as secondary power ring.And for the generation link of DC reference voltage,
It is exactly to primary power ring, the i.e. control of submodule output voltage --- for bottom end shunting submodule, output voltage
Average value is the same as input voltage source voltage Vlow--- it can be seen from the figure that because of the constant of input voltage source, so,
Sampling analysis need not be carried out on it to influence the effect that bottom end shunts submodule.For this point, top shunts submodule
It is more complicated and difficult.
Since capacitance voltage is the effect by input voltage source after Boost circuit boosting, so compared to can be high
Much.So when selection element, it should be noted that IGBT may bear be capacitance high voltage.It is noted that
Bottom end shunting submodule output end (i.e. the both ends lower bridge arm IGBT) voltage fluctuates between capacitance voltage and no-voltage.Such electricity
Pressure value is directly to be compared to each other with the reference value of generation.Therefore, in controlling unit, the measured value to sampling is needed
Carry out data processing.The emulation of this paper is handled this signal by simulation low-pass filter.It is contemplated that because through filtering
The voltage waveform of wave is not in no-voltage, so the peak value of this waveform will be far below what switch was measured, also i other words, is filtered
Voltage peak later will be equal to capacitance voltage.
For top shunting submodule, other than being shunted with bottom end and pressing measure similar in submodule, it is also necessary to root
Its output voltage is controlled according to required high side voltage.Its controller chassis such as Fig. 5 (b).As can be seen that removing reference voltage
The generation of DC component, top shunts the IGBT controls of submodule and bottom end shunts submodule without too big difference.And direct current
The generation of component is to control the key point of whole system circuit success or not.By desired output end high level and measure
Actual value compare, to obtain the size of its deviation, then control the DC component of reference value to complete the adjusting to error.
This also complies with imagination original herein --- output voltage is controlled by primary frequency (DC component, i.e. zero-frequency component), and
The pressure of capacitance is controlled by secondary frequency (i.e. a-c cycle can be controlled by oneself).Actually it can be seen that capacitance is electric
The control of pressure is individually controlled by each control ring, and this method makes extensively in Modular multilevel converter control circuit
With.Because of the identical reason of top shunting submodule parameter, in order to make its can normal operation, so each capacitance voltage
Reference value is all the difference and submodule number purpose ratio that its output voltage subtracts input voltage.
After setting input and output voltage, capacitance voltage reference value, inductance parameters etc. circuit parameter, circuit system can
With stable operation.The low frequency sinusoidal voltage waveform that its output voltage should be intensive is formed with high frequency sawtooth waveform, is more concentrated
Be no-voltage switching waveform.Under this waveform, module output voltage coincide substantially with the capacitance voltage in its module, and
After filtered, module output voltage can be much smaller than capacitance voltage, but waveform is smoother sine wave and sawtooth wave
Synthesis.Capacitance voltage should be the waveform of one section of fluctuating range very little.And output current and output voltage should be basically stable at it is pre-
If parameter on.
For simplicity, the emulation of this paper uses voltage in table 1 to rise than the data for 3.3 --- and i.e. top shunts submodule
Block number mesh or so bridge sum is 4, and the sum of bottom end shunting submodule or so bridge is 2.Used simulation parameter such as following table institute
Show：
1 push-pull type M2DC simulation parameters of table
Simulation result is shown in attached drawing 6 (a), 6 (b), 6 (c), 6 (d) and 6 (e).
The present invention emulates case and is only intended to help to illustrate the present invention.Emulating case, there is no all thin of detailed descriptionthe
Section, does not limit the invention to the specific embodiments described.Obviously, according to the content of this specification, many repair can be made
Change and changes.These embodiments are chosen and specifically described to this specification, is in order to preferably explain the principle of the present invention and reality
Using to enable skilled artisan to utilize the present invention well.The present invention is only by claims and its complete
The limitation of portion's range and equivalent.
The foregoing is merely presently preferred embodiments of the present invention, and those skilled in the art know, in the essence for not departing from the present invention
In the case of refreshing and range, various changes or equivalent replacement can be carried out to these features and embodiment.In addition, the present invention's
Under introduction, it can modify to these features and embodiment to adapt to particular situation and material without departing from the present invention's
Spirit and scope.Therefore, the present invention is not limited to the particular embodiment disclosed, and the right of fallen with the application is wanted
The embodiment in range is asked to belong to protection scope of the present invention.
Claims (4)
1. a kind of dual input list output DC-DC converter, which is characterized in that include shunting bridge arm, the first low tension potential source, second
Low tension potential source, high-pressure side inductance, the first low-pressure side inductance, the second low-pressure side inductance, High voltage output load；
Two shunting bridge arms include the top shunting submodule group being serially connected, top bottom end shunting submodule group, under
Portion bottom end shunts submodule group；The top shunting submodule group of two bridge arms is connected with top bottom end shunting submodule group
One end is connected by the first low-pressure side inductance, and the other end is connected by the high-pressure side inductance, under two bridge arms
Portion bottom end shunts one end that submodule group is connected with top bottom end shunting submodule group and is connected by the second low-pressure side inductance,
The other end is connected directly；
The High voltage output load is accessed between the high-pressure side inductance centre cap and ground,
First low voltage is accessed between the first low-pressure side inductance and the centre cap of the second low-pressure side inductance
The second low tension potential source, first low voltage are accessed in source between the second low-pressure side inductance centre cap and ground
Source and the second low tension potential source are mutual indepedent；
Two shunting bridge arms constitute secondary power ring, to carry AC compounent in secondary power ring distribution power with
It is balanced to form partial pressure, two shunting bridge arms load to form primary power ring with High voltage output respectively, to transmit direct current work(
Rate.
2. dual input list output DC-DC converter as described in claim 1, which is characterized in that the top shunts submodule
Group, top bottom end shunting submodule group, lower bottom end shunting submodule group all include respectively：The band that one or more is serially connected
The half bridge switching circuit submodule of capacitance.
3. dual input list output DC-DC converter as described in claim 1, which is characterized in that the top shunts submodule
Group, top bottom end shunting submodule group, lower bottom end shunting submodule group all include respectively：The band that one or more is serially connected
The full-bridge circuit submodule of capacitance.
4. dual input list output DC-DC converter as described in claim 1, which is characterized in that the top shunts submodule
Group, top bottom end shunting submodule group, lower bottom end shunting submodule group all include respectively：The band that one or more is serially connected
The capacitance full-bridge circuit submodule of transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610510436.4A CN106160490B (en) | 2016-06-30 | 2016-06-30 | A kind of dual input list output DC-DC converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610510436.4A CN106160490B (en) | 2016-06-30 | 2016-06-30 | A kind of dual input list output DC-DC converter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106160490A CN106160490A (en) | 2016-11-23 |
| CN106160490B true CN106160490B (en) | 2018-10-23 |
Family
ID=57350869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610510436.4A Active CN106160490B (en) | 2016-06-30 | 2016-06-30 | A kind of dual input list output DC-DC converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106160490B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203827192U (en) * | 2014-03-27 | 2014-09-10 | 华南理工大学 | Three-phase nine-switch group MMC AC-AC converter |
| CN104638930A (en) * | 2014-12-30 | 2015-05-20 | 国家电网公司 | High-voltage large-capacity DC/DC (Direct Current) converter suitable for DC power supply |
| CN104767227A (en) * | 2015-04-18 | 2015-07-08 | 东北电力大学 | Novel bus power flow controller for smart distribution grid power transformation device |
| CN105207486A (en) * | 2015-09-06 | 2015-12-30 | 南京航空航天大学 | Bidirectional resonance DC converter and control method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8796884B2 (en) * | 2008-12-20 | 2014-08-05 | Solarbridge Technologies, Inc. | Energy conversion systems with power control |
| US9960636B2 (en) * | 2014-07-11 | 2018-05-01 | Acbel Polytech Inc. | Power supply system and direct-current converter thereof |
-
2016
- 2016-06-30 CN CN201610510436.4A patent/CN106160490B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203827192U (en) * | 2014-03-27 | 2014-09-10 | 华南理工大学 | Three-phase nine-switch group MMC AC-AC converter |
| CN104638930A (en) * | 2014-12-30 | 2015-05-20 | 国家电网公司 | High-voltage large-capacity DC/DC (Direct Current) converter suitable for DC power supply |
| CN104767227A (en) * | 2015-04-18 | 2015-07-08 | 东北电力大学 | Novel bus power flow controller for smart distribution grid power transformation device |
| CN105207486A (en) * | 2015-09-06 | 2015-12-30 | 南京航空航天大学 | Bidirectional resonance DC converter and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106160490A (en) | 2016-11-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103532393B (en) | LLC is balanced | |
| CN106664007A (en) | Voltage source converter and control thereof | |
| CN105917549B (en) | Split-phase power conversion device, method and system | |
| TW201817925A (en) | Power converting device containing high frequency inverter and low frequency inverter connecting in parallel and the method thereof | |
| CN106452068B (en) | A kind of concatenated pressure equalizing control method of DC/DC converter input series connection output | |
| CN104065279A (en) | Voltage disturbance generation device and method for simulating power grid disturbance | |
| CN104104248A (en) | Dual-power photovoltaic inverter and control method thereof | |
| CN103840684B (en) | High-power offset-type cascade diode H bridge unit power factor rectifier | |
| CN105763086B (en) | A kind of Pyatyi submodule capacitor voltage balance control method of modular multi-level converter | |
| CN102253247A (en) | Flexibly-expanded general experiment platform for modular multi-level current converter | |
| Facchinello et al. | Closed-loop operation and control strategy for the dual active half bridge ac-ac converter | |
| CN106160490B (en) | A kind of dual input list output DC-DC converter | |
| KR101465973B1 (en) | Power converter for fuel cell system using multilevel inverter and method for reducing unbalance of neutral point potential | |
| EP2479868A1 (en) | Method and apparatus for controlling voltages over series-connected dc power supplies | |
| CN106100317B (en) | A kind of ISIPOSOP type modularization DC-DC converter and its composing method and output voltage control method | |
| Rufer et al. | Voltage step-up converter based on multistage stacked boost architecture (MSBA) | |
| Babaie et al. | Boost packed E-cell: A compact multilevel converter for power quality ancillary services | |
| CN106992689A (en) | A kind of single-phase direct ac/ac frequency converter and control method based on impulse-equivalent method | |
| CN104184350B (en) | High-power Mixed cascading bridge-type Unity Power Factor PWM Rectifier Based | |
| CN109004844A (en) | The light storage of series impedance source converter is coordinated to press integrated control method with output | |
| TWI416853B (en) | A New Type of Curved Winding Transformer in a Multi-Stage Voltage Source Converter System and Using a Special Harmonic Elimination Strategy | |
| CN107863895A (en) | The balance method of upper and lower bridge arm capacitive energy during a kind of bridge arm asymmetry | |
| CN107887922B (en) | Single-bipolar-based switchable direct-current transmission operation method and circuit | |
| US8031497B2 (en) | Three-leg power converter apparatus | |
| CN105356756B (en) | A kind of quasi-square wave modulator approach of modularization isolated form battery energy storage converter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |