CN110277927A - A kind of accumulation energy type Multilevel Inverters are topological and battery charge state regulates and controls method - Google Patents
A kind of accumulation energy type Multilevel Inverters are topological and battery charge state regulates and controls method Download PDFInfo
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
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- H02J3/382—
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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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
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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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
- H02M7/5387—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
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Abstract
The present invention provides a kind of accumulation energy type Multilevel Inverters topology and battery charge state regulation method, is related to battery energy storage technical field.The Multilevel Inverters topology includes the battery pack string that 5 battery packs are composed in series；The capacitor string of composition is connected in series in 5 capacitors；Battery pack string and capacitor are series-parallel；Each current transformer include 50 IGBT pipe and with its antiparallel diode, 3 current transformers are connected in parallel with battery pack string positive and negative anodes.The IGBT gate pole of each current transformer has 6 kinds of different switch states according to different modulation strategies；Simultaneously the present invention also provides battery charge state in compensated duty cycle adjustment accumulation energy type Multilevel Inverters topology is managed by adjusting current transformer IGBT, regulate and control the state-of-charge of each battery pack to consistent.Topology and method of the invention reduces the ceiling capacity loss of single switching transistor, improves the reliability of storage energy operation, significantly save the economic cost of energy-accumulating power station.
Description
Technical field
The present invention relates to battery energy storage technical field more particularly to a kind of accumulation energy type Multilevel Inverters topology and battery lotuses
Electricity condition regulates and controls method.
Background technique
Nowadays battery energy storage technology is widely used in numerous areas, from new energy power generation grid-connection to raising Operation of Electric Systems
Reliability, energy storage technology have played irreplaceable role, and ultra-large battery energy storage is compared to traditional middle and small scale electricity
Pond energy storage has many advantages, such as that peak load shifting capacity is sufficient, transient voltage enabling capabilities are strong, and ultra-large battery energy storage is deposited at this stage
Some problems have become the hot spot of domestic and international colleges and universities scholar research.
Current transformer used by ultra-large battery energy storage power station is high-power high voltage current transformer, the switching tube of current transformer
It carries out executing turn-on and turn-off movement after receiving control signal, so that turn-on consumption and turn-off power loss are produced, due to derailing switch
Usually more than megahertz grade, switching device power loss seriously can not be ignored the switching frequency of part, ultra-large in order to reduce
The loss of converter of energy storage power station improves current transformer working efficiency, enhances current transformer unsteady flow effect, needs a kind of suitable for super large
The Multilevel Inverters topological structure of scale battery energy storage power station.
In order to reduce the pork barrel and maintenance cost of ultra-large battery energy storage power station, usually can by different model, no
With the battery pack tandem working of state-of-charge, if not each to these models, state-of-charge (State of charge, i.e. SoC)
Different battery pack carries out state-of-charge regulation, then the capacity of all battery packs will be limited by the battery pack that capacity most exhausts fastly,
This greatly affected the reliability and economy of energy-accumulating power station.For this reason, it may be necessary to effective method can by different model,
The state-of-charge of the battery pack of state-of-charge regulates and controls to consistent.
Summary of the invention
The technical problem to be solved by the present invention is in view of the above shortcomings of the prior art, provide a kind of more level changes of accumulation energy type
It flows device topology and battery charge state regulates and controls method, reduce the loss and enhancing energy storage of ultra-large battery energy storage power station current transformer
Power station battery operational economy and reliability；
In order to solve the above technical problems, the technical solution used in the present invention is: on the one hand, the present invention provides a kind of energy storage
Type Multilevel Inverters topology, including 5 battery packs, 5 capacitors and 3 current transformers；5 battery packs are respectively battery pack
One, battery pack two, battery pack three, battery pack four and battery pack five, 5 battery packs are composed in series battery pack string；5 capacitors
Respectively first capacitor device, the second capacitor, third capacitor, the 4th capacitor and the 5th capacitor, 5 capacitors are connected in series
Form capacitor string；Battery pack string and capacitor are series-parallel, and the positive and negative anodes of each battery pack are connected with corresponding capacitor positive and negative anodes；It is described
3 current transformers are respectively the first current transformer, the second current transformer and third current transformer, each current transformer include 50 IGBT pipes and
With its antiparallel diode, 3 current transformers are connected in parallel with battery pack string positive and negative anodes.
Preferably, 5 battery packs are formed in series and parallel by m*n monomer energy-storage battery.
Preferably, 50 IGBT pipes and the matrix for being arranged in 10x5 with its anti-paralleled diode divide in each current transformer
Cloth, and defer to from left to right, sequence from top to bottom, S is labeled as by 50 IGBT and with its anti-paralleled diodeij, wherein 1
≤ i≤10,1≤j≤5,10 IGBT of each column are connected in series, i.e., in same row the emitter of a upper IGBT with it is next
The collector of IGBT is connected, S31Collector be connected with the lower port of first capacitor device, S51Collector and second capacitor
Lower port is connected, S71Collector be connected with the lower port of third capacitor, 591Collector and the 4th capacitor lower port
It is connected, S10,1Emitter be connected with the lower port of the 5th capacitor；S11、S12、S13、S14、S15Collector it is in parallel after with first
The anode connection of the upper port and battery pack one of capacitor, S11、S12、S13、S14、S15Emitter be connected, S22、S23、S24、S25
Emitter be connected, S31Emitter and S32Emitter be connected, S33、S34、S35Emitter be connected, S42Emitter and S43
Emitter be connected, S44Emitter and S45Emitter be connected, S51Emitter and S52Emitter be connected, S53Transmitting
Pole and S54Emitter be connected, S62Emitter and S63Emitter be connected, 564Emitter and S65Emitter be connected, S71
Emitter and S72Emitter be connected, S73、S74、S75Emitter be connected, S82、S83、S84、S85Emitter be connected, S91、
S92、S93、S94、S95Emitter be connected, S10,1、S10,2、S10,3、S10,4、S10,5Emitter it is in parallel after it is negative with battery pack five
Pole connection.
Preferably, the IGBT gate pole of each current transformer has 6 kinds of different switch states according to different modulation strategies,
It is respectively as follows:
Switch state 1:S65、S74、S75、S83、S84、S85、S92、S93、S94、S95、S10,1、S10,2、S10,3、S10,4、S10,5Number
IGBT conducting, the output electric current i of current transformerpAlong S65、S74、S75、S83、S84、S85、S92、S93、S94、S95、S10,1、S10,2、
S10,3、S10,4、S10,5Any guiding path flowing that number IGBT is formed, S21、S32、S41、S43、S52、S54、S61、S63、S72、S81Number
IGBT is connected to form blocking voltage, remaining IGBT shutdown, the output voltage of current transformer is 0 at this time；
Switch state 2:S54、S55、S63、S64、S65、S72、S73、S74、S75、S81、S82、S83、S84、S85、S91、S92、S93、
S94、S95Number IGBT conducting, the output electric current i of current transformerpAlong S54、S55、S63、S64、S65、S72、S73、S74、S75、S81、S82、
S83、S84、S85、S91、S92、S93、S94、S95Any guiding path flowing that number IGBT is formed, S21、S32、S41、S43、S52、S54、S61
Number IGBT conducting is to form blocking voltage, remaining IGBT shutdown, the output voltage of current transformer is V at this timedc/ 5, wherein VdcFor
Battery pack string both end voltage；
Switch state 3:S43、S44、S45、S52、S53、S54、S55、S61、S62、S63、S64、S65、S71、S72、S73、S74、S75、
S82、S83、S84、S85Number IGBT conducting, the output electric current i of current transformerpAlong S43、S44、S45、S52、S53、S54、S55、S61、S62、
S63、S64、S65、S71、S72、S73、S74、S75、S82、S83、S84、S85Any guiding path flowing that number IGBT is formed, S21、S32、
S41、S91Number IGBT conducting is to form blocking voltage, remaining IGBT shutdown, the output voltage of current transformer is 2V at this timedc/5；
Switch state 4:S32、S33、S34、S35、S41、S42、S43、S44、S45、S51、S52、S53、S54、S55、S62、S63、S64、
S65、S73、S74、S75Number IGBT conducting, the output electric current i of current transformerpAlong S32、S33、S34、S35、S41、S42、S43、S44、S45、
S51、S52、S53、S54、S55、S62、S63、S64、S65、S73、S74、S75Any guiding path flowing that number IGBT is formed, S21、S71、
S82、S91Number IGBT conducting is to form blocking voltage, remaining IGBT shutdown, the output voltage of current transformer is 3V at this timedc/5；
Switch state 5:S21、S22、S23、S24、S25、S31、S32、S33、S34、S35、S42、S43、S44、S45、S53、S54、S55、
S64、S65Number IGBT conducting, the output electric current i of current transformerpAlong S21、S22、S23、S24、S25、S31、S32、S33、S34、S35、S42、
S43、S44、S45、S53、S54、S55、S64、S65Any guiding path flowing that number IGBT is formed, S51、S62、S71、S73、S82、S91Number
IGBT is connected to form blocking voltage, remaining IGBT shutdown, the output voltage of current transformer is 4V at this timedc/5；
Switch state 6:Su、S12、S13、S14、S15、S22、S23、S24、S25、S33、S34、S35、S44、S45、S55Number IGBT conducting,
The output electric current i of current transformerpAlong S21、S22、S23、S24、S25、S31、S32、S33、S34、S35、S42、S43、S44、S45、S53、S54、
S55、S64、S65Any guiding path flowing that number IGBT is formed, S31、S42、S51、S53、S62、S64、S71、S73、S82、S91Number IGBT
Conducting is to form blocking voltage, remaining IGBT shutdown, the output voltage of current transformer is V at this timedc。
On the other hand, the present invention also provides the regulation sides of battery charge state in the accumulation energy type Multilevel Inverters topology
Method, method particularly includes:
Step 1: calculating the state-of-charge amount of unbalance Imb in battery pack string between each battery packsoci′, and by itself and reference valueIt makes the difference, and to difference DELTA Imbsoci′It is adjusted in pi regulator, wherein i '=2,3 ..., 5；
Step 1.1: the output power P of battery pack string is calculated, shown in following formula:
Wherein, m is the index of modulation of current transformer, IrmsIt is the virtual value of 3 output current of converter, Φ is referring to mutually electricity
The angle of phase displacement of pressure；
The common current i of battery pack string is acquired according to the output power P of battery pack stringcom, shown in following formula:
Step 1.2: according to each battery pack current is flowed through, calculating direct current and regulate and control electric current Ii′, Ii′The i-th ' -1 battery pack with
Electric current between the i-th ' a battery pack tie point and capacitor is calculating electric current I2When, enable regulation electric current I3=I4=I5=0,
Similarly when calculating other regulation electric currents, it is zero that corresponding regulation current value, which is arranged, then:
Wherein, iBatkIt is the electric current for flowing through k-th of battery pack, k=1,2 ..., 5；
Step 1.3: state-of-charge is uneven between calculating each battery pack according to each battery pack state-of-charge and direct current regulation electric current
The calculated value Imb of measurementsoci′With reference value
Step 1.3.1: according to each battery pack state-of-charge SoCkCalculate the meter of state-of-charge amount of unbalance between each battery pack
Calculation value Imbsoci′, shown in following formula:
Step 1.3.2: the reference value that electric current calculates state-of-charge amount of unbalance between each battery pack is regulated and controled according to direct currentShown in following formula:
Wherein, s Laplace's azimuth operator, QnomFor the nominal capacity of each battery pack；
Step 1.4: by differenceIt is sent into pi regulator and is adjusted, in pi regulator
Proportional coefficient Kp=100, integral coefficient Ki=1；
Step 2: decoupling matrices R is sent into the adjusting output in pi regulator4x4In, it exports through decoupling matrices R4x4Decoupling
Afterwards, the output compensation ω between the i-th ' a battery pack is obtainedi′；
The decoupling matrices R4x4Shown in following formula:
Step 3: ω is compensated according to the output between each battery packi′The modulation parameter for updating each current transformer obtains each current transformer
Duty ratio control current transformer in switch state, and then regulate and control the state-of-charge of each battery pack, method particularly includes:
Step 3.1: being modified according to index of modulation m of the correction factor λ to current transformer, obtain revised modulation system
Numberm *；
Step 3.1.1: the voltage bias parameter y between each battery pack is calculated according to each battery voltagei′, following formula institute
Show:
Wherein, Vi′It is the both end voltage of the i-th ' a battery pack；
Step 3.1.2: calculating correction factor λ according to the voltage bias parameter between each battery pack, shown in following formula:
Step 3.1.3: enabling each battery pack output voltage consistent, simplify to correction factor λ, shown in following formula:
Step 3.1.4: using simplified correction factor λ multiplied by index of modulation m, revised index of modulation m is obtained*,
Shown in following formula:
Step 3.2: according to revised index of modulation m*A phase voltage electrical angle θ is exported with current transformer, calculating acquires each
The duty ratio d of IGBT on current transformerxy, wherein 1≤x≤3,1≤y≤10；
Step 3.2.1: by the index of modulation m about the SIN function of output a phase voltage electrical angle θ and current transformer*It is multiplied
Obtain the duty ratio d of the first current transformer1, the duty ratio of the second current transformer and third current transformer then is obtained to SIN function phase shift
d2, d3, shown in following formula:
Step 3.2.2: the maximum value Max (d of three current transformer duty ratios is takenx), by the maximum value and each current transformer duty
The difference of ratio is multiplied by coefficient k1Obtain the duty ratio d of each first IGBT on corresponding current transformerx1(θ), shown in following formula:
dx1(θ)=k1*Max[d1(θ), d2(θ), d3(θ)]-dx(θ)
Wherein, k1=1/2；
Step 3.2.3: the minimum M in (d of three current transformer duty ratios is takenx), by the minimum value and each current transformer duty
The difference of ratio is multiplied by coefficient k2Obtain the duty ratio d of each tenth IGBT on corresponding current transformerX, 10(θ)；
dX, 10(θ)=dx(θ)-k2*Min[d1(θ), d2(θ), d3(θ)]
Wherein, k2=1/2；
Step 3.2.4: calculating the duty ratio of the second to the 9th IGBT on each current transformer, shown in following formula:
dx2(θ)=dx3(θ)=...=dx9(θ)=k3(1-dx1(θ)-dx10(θ))
Wherein, k3=1/4；
Step 3.3: ω is compensated according to the output between each battery packi′To the duty ratio d of each current transformerxyIt compensates, obtains
Compensated duty ratio dxy *, method particularly includes:
Step 3.3.1: according to the output compensation calculation penalty coefficient ρ between each battery pack1, by first in 3 current transformers
The duty ratio d of IGBTx1(θ) is multiplied by penalty coefficient ρ1Duty ratio d after being compensatedx1 *(θ), in which:
ρ1=1- ω2-ω3-ω4-ω5
Step 3.3.2: according to the output compensation calculation penalty coefficient ρ between each battery pack2, by the tenth in 3 current transformers
The duty ratio d of IGBTX, 10(θ) is multiplied by penalty coefficient ρ2Duty ratio d after being compensatedX, 10 *(θ), in which:
ρ2=1+ ω2+ω3+ω4+ω5
Step 3.3.3: the output between each battery pack is compensated into ωi′Multiplied by dx1(θ) and dx10The difference of (θ), and this is multiplied
Product result adds to dxp(θ) obtains on each current transformer duty ratio d after the second to the 9th IGBT compensationxp *(θ), wherein 2≤p≤9；
Step 3.4 regulates and controls the energy storage of each battery pack using duty ratio after each IGBT compensation of each current transformer, makes each
The state-of-charge of battery pack regulates and controls to consistent.
The beneficial effects of adopting the technical scheme are that the more level unsteady flows of a kind of accumulation energy type provided by the invention
Device topology and battery charge state regulate and control method, using the topological structure, under 6 kinds of switch states of current transformer, and current transformer output
All there are many circulation paths for electric current, and this reduce the voltage stress of switching tube, reduce the ceiling capacity loss of single switching transistor,
Improve the reliability of storage energy operation.The battery charge state proposed simultaneously for the topological structure regulates and controls method, according to battery
Group state-of-charge amount of unbalance, calculates the output offset between battery pack, and then can adjust the duty ratio of current transformer, reaches flat
Weigh the purpose of battery pack state-of-charge, this is a kind of energy flow by distributing between each battery pack to balance each battery pack
The method of state-of-charge, does not increase additional energy loss, significantly saves the economic cost of energy-accumulating power station.
Detailed description of the invention
Fig. 1 is a kind of accumulation energy type Multilevel Inverters topological structure schematic diagram provided in an embodiment of the present invention；
Fig. 2 is the topology diagram of Multilevel Inverters provided in an embodiment of the present invention；
Fig. 3 is switching tube state diagram when Multilevel Inverters provided in an embodiment of the present invention are in switch state 1；
Fig. 4 is switching tube state diagram when Multilevel Inverters provided in an embodiment of the present invention are in switch state 2；
Fig. 5 is switching tube state diagram when Multilevel Inverters provided in an embodiment of the present invention are in switch state 3；
Fig. 6 is switching tube state diagram when Multilevel Inverters provided in an embodiment of the present invention are in switch state 4；
Fig. 7 is switching tube state diagram when Multilevel Inverters provided in an embodiment of the present invention are in switch state 5；
Fig. 8 is switching tube state diagram when Multilevel Inverters provided in an embodiment of the present invention are in switch state 6；
Fig. 9 is battery charge state regulation side in a kind of accumulation energy type Multilevel Inverters topology provided in an embodiment of the present invention
The flow chart of method；
Figure 10 is duty ratio analogous diagram after each IGBT of current transformer provided in an embodiment of the present invention is compensated；
Figure 11 is that battery charge state regulates and controls result in accumulation energy type Multilevel Inverters topology provided in an embodiment of the present invention
Analogous diagram.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below
Example is not intended to limit the scope of the invention for illustrating the present invention.
In the present embodiment, a kind of accumulation energy type Multilevel Inverters topology, as shown in Figure 1, including 5 battery packs, 5 capacitors
With 3 current transformers；5 battery packs are respectively battery pack one, battery pack two, battery pack three, battery pack four and battery pack five,
5 battery packs are composed in series battery pack string；5 battery packs are formed in series and parallel by m*n monomer energy-storage battery.5 electricity
Holding is respectively first capacitor device, the second capacitor, third capacitor, the 4th capacitor and the 5th capacitor, and 5 capacitor series connection connect
Connect composition capacitor string；Battery pack string and capacitor are series-parallel, and the positive and negative anodes of each battery pack are connected with corresponding capacitor positive and negative anodes；Institute
Stating 3 current transformers is respectively the first current transformer, the second current transformer and third current transformer, and each current transformer includes 50 IGBT pipes
And with its antiparallel diode, as shown in Fig. 2, 3 current transformers are connected in parallel with battery pack string positive and negative anodes.
50 IGBT pipes and the matrix for being arranged in 10x5 with its anti-paralleled diode are distributed in each current transformer, and are abided by
From from left to right, sequence from top to bottom is labeled as S by 50 IGBT and with its anti-paralleled diodeij, wherein 1≤i≤
10,1≤j≤5,10 IGBT of each column are connected in series, i.e., in same row the emitter (E) of a upper IGBT with it is next
The collector (C) of IGBT is connected, S31Collector be connected with the lower port of first capacitor device, S51Collector and the second capacitor
The lower port of device is connected, S71Collector be connected with the lower port of third capacitor, S91Collector and the 4th capacitor under
Port is connected, S10,1Emitter be connected with the lower port of the 5th capacitor；S11、S12、S13、S14、S15Collector it is in parallel after
It is connect with the anode of the upper port of first capacitor device and battery pack one, S11、S12、S13、S14、S15Emitter be connected, S22、S23、
S24、S25Emitter be connected, S31Emitter and S32Emitter be connected, S33、S34、S35Emitter be connected, S42Transmitting
Pole and S43Emitter be connected, S44Emitter and S45Emitter be connected, S51Emitter and S52Emitter be connected, S53
Emitter and S54Emitter be connected, S62Emitter and S63Emitter be connected, S64Emitter and S65Emitter
It is connected, S71Emitter and S72Emitter be connected, S73、S74、S75Emitter be connected, S82、S83、S84、S85Emitter phase
Even, S91、S92、S93、S94、S95Emitter be connected, S10,1、S10,2、S10,3、S10,4、S10,5Emitter it is in parallel after with battery pack
Five cathode connection.
The IGBT gate pole (g) of each current transformer has 6 kinds of different switch states according to corresponding modulation strategy, respectively
Are as follows:
Switch state 1: as shown in figure 3, S65、S74、S75、S83、S84、S85、S92、S93、S94、S95、S10,1、S10,2、S10,3、
S10,4、S10,5Number IGBT conducting, the output electric current i of current transformerpAlong S65、S74、S75、S83、S84、S85、S92、S93、S94、S95、
S10,1、S10,2、S10,3、S10,4、S10,5Any guiding path flowing that number IGBT is formed, S21、S32、S41、S43、S52、S54、S61、
S63、S72、S81Number IGBT conducting is to form blocking voltage, remaining IGBT shutdown, the output voltage of current transformer is 0 at this time；
Switch state 2: as shown in figure 4, S54、S55、S63、S64、S65、S72、S73、S74、S75、S81、S82、S83、S84、S85、
S91、S92、S93、S94、S95Number IGBT conducting, the output electric current i of current transformerpAlong S54、S55、S63、S64、S65、S72、S73、S74、
S75、S81、S82、S83、S84、S85、S91、S92、S93、S94、S95Any guiding path flowing that number IGBT is formed, S21、S32、S41、
S43、S52、S54、S61Number IGBT conducting is to form blocking voltage, remaining IGBT shutdown, the output voltage of current transformer is at this time
Vdc/ 5, wherein VdcFor battery pack string both end voltage；
Switch state 3: as shown in figure 5, S43、S44、S45、S52、S53、S54、S55、S61、S62、S63、S64、S65、S71、S72、
S73、S74、S75、S82、S83、S84、S85Number IGBT conducting, the output electric current i of current transformerpAlong S43、S44、S45、S52、S53、S54、
S55、S61、S62、S63、S64、S65、S71、S72、S73、S74、S75、S82、S83、S84、S85Any guiding path runoff that number IGBT is formed
It is dynamic, S21、S32、S41、S91Number IGBT conducting is to form blocking voltage, remaining IGBT shutdown, the output voltage of current transformer is at this time
2Vdc/5；
Switch state 4: as shown in fig. 6, S32、S33、S34、S35、S41、S42、S43、S44、S45、S51、S52、S53、S54、S55、
S62、S63、S64、S65、S73、S74、S75Number IGBT conducting, the output electric current i of current transformerpAlong S32、S33、S34、S35、S41、S42、
S43、S44、S45、S51、S52、S53、S54、S55、S62、S63、S64、S65、S73、S74、S75Any guiding path runoff that number IGBT is formed
It is dynamic, S21、S71、S82、S91Number IGBT conducting is to form blocking voltage, remaining IGBT shutdown, the output voltage of current transformer is at this time
3Vdc/5；
Switch state 5: as shown in fig. 7, S21、S22、S23、S24、S25、S31、S32、S33、S34、S35、S42、S43、S44、S45、
S53、S54、S55、S64、S65Number IGBT conducting, the output electric current i of current transformerpAlong S21、S22、S23、S24、S25、S31、S32、S33、
S34、S35、S42、S43、S44、S45、S53、S54、S55、S64、S65Any guiding path flowing that number IGBT is formed, S51、S62、S71、
S73、S82、S91Number IGBT conducting is to form blocking voltage, remaining IGBT shutdown, the output voltage of current transformer is 4V at this timedc/5；
Switch state 6: as shown in figure 8, S11、S12、S13、S14、S15、S22、S23、S24、S25、S33、S34、S35、S44、S45、S55
Number IGBT conducting, the output electric current i of current transformerpAlong S21、S22、S23、S24、S25、S31、S32、S33、S34、S35、S42、S43、S44、
S45、S53、S54、S55、S64、S65Any guiding path flowing that number IGBT is formed, S31、S42、S51、S53、S62、S64、S71、S73、
S82、S91Number IGBT conducting is to form blocking voltage, remaining IGBT shutdown, the output voltage of current transformer is V at this timedc。
A kind of regulation method of battery charge state during accumulation energy type Multilevel Inverters are topological, as shown in figure 9, specific method
Are as follows:
Step 1: calculating the state-of-charge amount of unbalance Imb in battery pack string between each battery packsoci′, and by itself and reference valueIt makes the difference, and to difference DELTA Imbsoci′It is adjusted in pi regulator, wherein i '=2,3 ..., 5；
Step 1.1: the output power P of battery pack string is calculated, shown in following formula:
Wherein, m is the index of modulation of current transformer, IrmsIt is the virtual value of 3 output current of converter, Φ is referring to mutually electricity
The angle of phase displacement of pressure；
The common current i of battery pack string is acquired according to the output power P of battery pack stringcom, shown in following formula:
Step 1.2: according to each battery pack current is flowed through, calculating direct current and regulate and control electric current Ii′, Ii′The i-th ' -1 battery pack with
Electric current between the i-th ' a battery pack tie point and capacitor is calculating electric current I2When, enable regulation electric current I3=I4=I5=0,
Similarly when calculating other regulation electric currents, it is zero that corresponding regulation current value, which is arranged, then:
Wherein, iBatkIt is the electric current for flowing through k-th of battery pack, k=1,2 ..., 5；
Step 1.3: state-of-charge is uneven between calculating each battery pack according to each battery pack state-of-charge and direct current regulation electric current
The calculated value Imb of measurementsoci′With reference value
Step 1.3.1: according to each battery pack state-of-charge SoCkCalculate the meter of state-of-charge amount of unbalance between each battery pack
Calculation value Imbsoci′, shown in following formula:
Step 1.3.2: the reference value that electric current calculates state-of-charge amount of unbalance between each battery pack is regulated and controled according to direct currentShown in following formula:
Wherein, s Laplace's azimuth operator, QnomFor the nominal capacity of each battery pack；
Step 1.4: by differenceIt is sent into pi regulator and is adjusted, in pi regulator
Proportional coefficient Kp=100, integral coefficient Ki=1；
Step 2: decoupling matrices R is sent into the adjusting output in pi regulator4x4In, it exports through decoupling matrices R4x4Decoupling
Afterwards, the output compensation ω between the i-th ' a battery pack is obtainedi′；
The decoupling matrices R4x4Shown in following formula:
Step 3: ω is compensated according to the output between each battery packi′The modulation parameter for updating each current transformer obtains each current transformer
Duty ratio control current transformer in switch state, and then regulate and control the state-of-charge of each battery pack, method particularly includes:
Step 3.1: being modified according to index of modulation m of the correction factor λ to current transformer, obtain the revised index of modulation
m*；
Step 3.1.1: the voltage bias parameter y between each battery pack is calculated according to each battery voltagei′, following formula institute
Show:
Wherein, Vi′It is the both end voltage of the i-th ' a battery pack；
Step 3.1.2: calculating correction factor λ according to the voltage bias parameter between each battery pack, shown in following formula:
Step 3.1.3: enabling each battery pack output voltage consistent, simplify to correction factor λ, shown in following formula:
Step 3.1.4: using simplified correction factor λ multiplied by index of modulation m, revised index of modulation m is obtained*,
Shown in following formula:
Step 3.2: according to revised index of modulation m*A phase voltage electrical angle θ is exported with current transformer, calculating acquires each
The duty ratio d of IGBT on current transformerxy, wherein 1≤x≤3,1≤y≤10；
Step 3.2.1: by the index of modulation m about the SIN function of output a phase voltage electrical angle θ and current transformer*It is multiplied
Obtain the duty ratio d of the first current transformer1, the duty ratio of the second current transformer and third current transformer then is obtained to SIN function phase shift
d2, d3, shown in following formula:
Step 3.2.2: the maximum value Max (d of three current transformer duty ratios is takenx), by the maximum value and each current transformer duty
The difference of ratio is multiplied by coefficient k1Obtain the duty ratio d of each first IGBT on corresponding current transformerx1(θ), shown in following formula:
dx1(θ)=k1*Max[d1(θ), d2(θ), d3(θ)]-dx(θ)
Wherein, k1=1/2；
Step 3.2.3: the minimum M in (d of three current transformer duty ratios is takenx), by the minimum value and each current transformer duty
The difference of ratio is multiplied by coefficient k2Obtain the duty ratio d of each tenth IGBT on corresponding current transformerX, 10(θ)；
dX, 10(θ)=dx(θ)-k2*Min[d1(θ), d2(θ), d3(θ)]
Wherein, k2=1/2；
Step 3.2.4: calculating the duty ratio of the second to the 9th IGBT on each current transformer, shown in following formula:
dx2(θ)=dx3(θ)=...=dx9(θ)=k3(1-dx1(θ)-dx10(θ))
Wherein, k3=1/4；
Step 3.3: ω is compensated according to the output between each battery packi′To the duty ratio d of each current transformerxyIt compensates, obtains
Compensated duty ratio dxy *, method particularly includes:
Step 3.3.1: according to the output compensation calculation penalty coefficient ρ between each battery pack1, by first in 3 current transformers
The duty ratio d of IGBTx1(θ) is multiplied by penalty coefficient ρ1Duty ratio d after being compensatedx1 *(θ), in which:
ρ1=1- ω2-ω3-ω4-ω5
Step 3.3.2: according to the output compensation calculation penalty coefficient ρ between each battery pack2, by the tenth in 3 current transformers
The duty ratio d of IGBTX, 10(θ) is multiplied by penalty coefficient ρ2Duty ratio d after being compensatedx10 *(θ), in which:
ρ2=1+ ω2+ω3+ω4+ω5
Step 3.3.3: the output between each battery pack is compensated into ωi′Multiplied by dx1(θ) and dX, 10The difference of (θ), and this is multiplied
Product result adds to dxp(θ) obtains on each current transformer duty ratio d after the second to the 9th IGBT compensationxp *(θ), wherein 2≤p≤9；
Step 3.4 regulates and controls the energy storage of each battery pack using duty ratio after each IGBT compensation of each current transformer, makes each
The state-of-charge of battery pack regulates and controls to consistent.
In the present embodiment, duty ratio emulation as shown in Figure 10, utilizes each of each current transformer after each IGBT compensation of current transformer
Duty ratio regulates and controls the energy storage of each battery pack after IGBT compensation, regulates and controls the state-of-charge of each battery pack to consistent result
As shown in figure 11.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify to technical solution documented by previous embodiment, or some or all of the technical features are equal
Replacement；And these are modified or replaceed, model defined by the claims in the present invention that it does not separate the essence of the corresponding technical solution
It encloses.
Claims (10)
1. a kind of accumulation energy type Multilevel Inverters topology, it is characterised in that: including 5 battery packs, 5 capacitors and 3 current transformers；
5 battery packs are respectively battery pack one, battery pack two, battery pack three, battery pack four and battery pack five, 5 battery pack strings
Connection composition battery pack string；5 capacitors be respectively first capacitor device, the second capacitor, third capacitor, the 4th capacitor and
Composition capacitor string is connected in series in 5th capacitor, 5 capacitors；Battery pack string and capacitor are series-parallel, the positive and negative anodes of each battery pack
It is connected with corresponding capacitor positive and negative anodes；3 current transformers are respectively the first current transformer, the second current transformer and third current transformer,
Each current transformer include 50 IGBT pipe and with its antiparallel diode, 3 current transformers and battery pack string positive and negative anodes
It is connected in parallel.
2. a kind of accumulation energy type Multilevel Inverters topology according to claim 1, it is characterised in that: 5 battery packs
It is formed in series and parallel by m*n monomer energy-storage battery.
3. a kind of accumulation energy type Multilevel Inverters topology according to claim 1, it is characterised in that: each current transformer
In 50 IGBT pipe and the matrix for being arranged in 10x5 with its anti-paralleled diode be distributed, and defer to from left to right, from top to bottom
Sequentially, S is labeled as by 50 IGBT and with its anti-paralleled diodeij, wherein 1≤i≤10,1≤j≤5,10 of each column
IGBT is connected in series, i.e., the emitter of a upper IGBT is connected with the collector of next IGBT in same row, S31Collector
It is connected with the lower port of first capacitor device, S51Collector be connected with the lower port of the second capacitor, S71Collector and third
The lower port of capacitor is connected, S91Collector be connected with the lower port of the 4th capacitor, S10,1Emitter and the 5th capacitor
The lower port of device is connected；S11、S12、S13、S14、S15Collector it is in parallel after with the upper port of first capacitor device and battery pack one
Anode connection, S11、S12、S13、S14、S15Emitter be connected, S22、S23、S24、S25Emitter be connected, S31Emitter with
S32Emitter be connected, S33、S34、S35Emitter be connected, S42Emitter and S43Emitter be connected, S44Emitter with
S45Emitter be connected, S51Emitter and S52Emitter be connected, S53Emitter and S54Emitter be connected, 562Hair
Emitter-base bandgap grading and S63Emitter be connected, S64Emitter and S65Emitter be connected, S71Emitter and S72Emitter be connected,
S73、S74、S75Emitter be connected, S82、S83、S84、S85Emitter be connected, S91、S92、S93、S94、S95Emitter be connected,
S10,1、S10,2、S10,3、S10,4、S10,5Emitter it is in parallel after connect with the cathode of battery pack five.
4. a kind of accumulation energy type Multilevel Inverters topology according to claim 3, it is characterised in that: each current transformer
IGBT gate pole 6 kinds of different switch states are had according to different modulation strategies, be respectively as follows:
Switch state 1:S65、S74、S75、S83、S84、S85、S92、S93、S94、S95、S10,1、S10,2、S10,3、S10,4、S10,5Number IGBT is led
It is logical, the output electric current i of current transformerpAlong S65、S74、S75、S83、S84、S85、S92、S93、S94、S95、S10,1、S10,2、S10,3、S10,4、
S10,5Any guiding path flowing that number IGBT is formed, S21、S32、S41、S43、S52、S54、S61、S63、S72、S81Number IGBT conducting is used
To form blocking voltage, remaining IGBT shutdown, the output voltage of current transformer is 0 at this time；
Switch state 2:S54、S55、S63、S64、S65、S72、S73、S74、S75、S81、S82、S83、S84、S85、S91、S92、S93、S94、S95
Number IGBT conducting, the output electric current i of current transformerpAlong S54、S55、S63、S64、S65、S72、S73、S74、S75、S81、S82、S83、S84、
S85、S91、S92、S93、S94、S95Any guiding path flowing that number IGBT is formed, S21、S32、S41、S43、S52、S54、S61Number IGBT
Conducting is to form blocking voltage, remaining IGBT shutdown, the output voltage of current transformer is V at this timedc/ 5, wherein VdcFor battery pack
String both end voltage；
Switch state 3:S43、S44、S45、S52、S53、S54、S55、S61、S62、S63、S64、S65、S71、S72、S73、S74、S75、S82、S83、
S84、S85Number IGBT conducting, the output electric current i of current transformerpAlong S43、S44、S45、S52、S53、S54、S55、S61、S62、S63、S64、
S65、S71、S72、S73、S74、S75、S82、S83、S84、S85Any guiding path flowing that number IGBT is formed, S21、S32、S41、S91Number
IGBT is connected to form blocking voltage, remaining IGBT shutdown, the output voltage of current transformer is 2V at this timedc/5；
Switch state 4:S32、S33、S34、S35、S41、S42、S43、S44、S45、S51、S52、S53、S54、S55、S62、S63、S64、S65、S73、
S74、S75Number IGBT conducting, the output electric current i of current transformerpAlong S32、S33、S34、S35、S41、S42、S43、S44、S45、S51、S52、
S53、S54、S55、S62、S63、S64、S65、S73、S74、S75Any guiding path flowing that number IGBT is formed, S21、S71、S82、S91Number
IGBT is connected to form blocking voltage, remaining IGBT shutdown, the output voltage of current transformer is 3V at this timedc/5；
Switch state 5:S21、S22、S23、S24、S25、S31、S32、S33、S34、S35、S42、S43、S44、S45、S53、S54、S55、S64、S65
Number IGBT conducting, the output electric current i of current transformerpAlong S21、S22、S23、S24、S25、S31、S32、S33、S34、S35、S42、S43、S44、
S45、S53、S54、S55、S64、S65Any guiding path flowing that number IGBT is formed, S51、S62、S71、S73、S82、S91Number IGBT conducting
To form blocking voltage, remaining IGBT shutdown, the output voltage of current transformer is 4V at this timedc/5；
Switch state 6:S11、S12、S13、S14、S15、S22、S23、S24、S25、S33、S34、S35、S44、S45、S55Number IGBT conducting, becomes
Flow the output electric current i of devicepAlong S21、S22、S23、S24、S25、S31、S32、S33、S34、S35、S42、S43、S44、S45、S53、S54、S55、
S64、S65Any guiding path flowing that number IGBT is formed, S31、S42、S51、S53、S62、S64、S71、S73、S82、S91Number IGBT conducting
To form blocking voltage, remaining IGBT shutdown, the output voltage of current transformer is V at this timedc。
5. a kind of regulation method of battery charge state, opened up based on a kind of accumulation energy type Multilevel Inverters as claimed in claim 4
It flutters, it is characterised in that: the following steps are included:
Step 1: calculating the state-of-charge amount of unbalance Imb in battery pack string between each battery packsoci′, and by itself and reference valueIt makes the difference, and to difference DELTA Imbsoci′It is adjusted in pi regulator, wherein i '=2,3 ..., 5；
Step 1.1: the output power P of battery pack string is calculated, shown in following formula:
Wherein, m is the index of modulation of current transformer, IrmsIt is the virtual value of 3 output current of converter, Φ is referring to phase voltage
Angle of phase displacement；
The common current i of battery pack string is acquired according to the output power P of battery pack stringcom, shown in following formula:
Step 1.2: according to each battery pack current is flowed through, calculating direct current and regulate and control electric current Ii′, Ii′It is the i-th ' -1 battery pack and the i-th '
Electric current between a battery pack tie point and capacitor is calculating electric current I2When, enable regulation electric current I3=I4=I5=0, similarly
When calculating other regulation electric currents, it is zero that corresponding regulation current value, which is arranged, then:
Wherein, iBatkIt is the electric current for flowing through k-th of battery pack, k=1,2 ..., 5；
Step 1.3: according to state-of-charge amount of unbalance between each battery pack state-of-charge and each battery pack of direct current regulation electric current calculating
Calculated value Imbsoci′With reference value
Step 1.4: by differenceIt is sent into pi regulator and is adjusted, ratio in pi regulator
COEFFICIENT Kp=100, integral coefficient Ki=1；
Step 2: decoupling matrices R is sent into the adjusting output in pi regulator4x4In, it exports through decoupling matrices R4x4After decoupling, obtain
ω is compensated to the output between the i-th ' a battery packi′；
Step 3: ω is compensated according to the output between each battery packi′The modulation parameter for updating each current transformer obtains accounting for for each current transformer
Sky regulates and controls the state-of-charge of each battery pack than switch state in control current transformer, method particularly includes:
Step 3.1: being modified according to index of modulation m of the correction factor λ to current transformer, obtain revised index of modulation m*；
Step 3.2: according to revised index of modulation m*A phase voltage electrical angle θ is exported with current transformer, calculating acquires each unsteady flow
The duty ratio d of IGBT on devicexy, wherein 1≤x≤3,1≤y≤10；
Step 3.3: ω is compensated according to the output between each battery packi′To the duty ratio d of each current transformerxyIt compensates, is compensated
Duty ratio d afterwardsxy *；
Step 3.4 regulates and controls the energy storage of each battery pack using duty ratio after each IGBT compensation of each current transformer, makes each battery
The state-of-charge of group regulates and controls to consistent.
6. a kind of regulation method of battery charge state according to claim 5, it is characterised in that: the step 1.3
Method particularly includes:
Step 1.3.1: according to each battery pack state-of-charge SoCkCalculate the calculated value of state-of-charge amount of unbalance between each battery pack
Imbsoci′, shown in following formula:
Step 1.3.2: the reference value that electric current calculates state-of-charge amount of unbalance between each battery pack is regulated and controled according to direct currentSuch as
Shown in lower formula:
Wherein, s Laplace's azimuth operator, QnomFor the nominal capacity of each battery pack.
7. a kind of regulation method of battery charge state according to claim 5, it is characterised in that: decoupled described in step 2
Matrix R4x4Shown in following formula:
8. a kind of regulation method of battery charge state according to claim 7, it is characterised in that: the step 3.1
Method particularly includes:
Step 3.1.1: the voltage bias parameter y between each battery pack is calculated according to each battery voltagei′, shown in following formula:
Wherein, Vi′It is the both end voltage of the i-th ' a battery pack；
Step 3.1.2: calculating correction factor λ according to the voltage bias parameter between each battery pack, shown in following formula:
Step 3.1.3: enabling each battery pack output voltage consistent, simplify to correction factor λ, shown in following formula:
Step 3.1.4: using simplified correction factor λ multiplied by index of modulation m, revised index of modulation m is obtained*, following public
Shown in formula:
9. a kind of regulation method of battery charge state according to claim 8, it is characterised in that: the step 3.2
Method particularly includes:
Step 3.2.1: by the index of modulation m about the SIN function of output a phase voltage electrical angle θ and current transformer*Multiplication obtains
The duty ratio d of one current transformer1, the duty ratio d of the second current transformer and third current transformer then is obtained to SIN function phase shift2, d3,
Shown in following formula:
Step 3.2.2: the maximum value Max (d of three current transformer duty ratios is takenx), by the difference of the maximum value and each current transformer duty ratio
Value is multiplied by coefficient k1Obtain the duty ratio d of each first IGBT on corresponding current transformerx1(θ), shown in following formula:
dx1(θ)=k1*Max[d1(θ), d2(θ), d3(θ)]-dx(θ)
Wherein, k1=1/2；
Step 3.2.3: the minimum M in (d of three current transformer duty ratios is takenx), by the difference of the minimum value and each current transformer duty ratio
Value is multiplied by coefficient k2Obtain the duty ratio d of each tenth IGBT on corresponding current transformerX, 10(θ)；
dX, 10(θ)=dx(θ)-k2*Min[d1(θ), d2(θ), d3(θ)]
Wherein, k2=1/2；
Step 3.2.4: calculating the duty ratio of the second to the 9th IGBT on each current transformer, shown in following formula:
dx2(θ)=dx3(θ)=...=dx9(θ)=k3(1-dx1(θ)-dx10(θ))
Wherein, k3=1/4.
10. a kind of regulation method of battery charge state according to claim 9, it is characterised in that: the step 3.3
Method particularly includes:
Step 3.3.1: according to the output compensation calculation penalty coefficient ρ between each battery pack1, by the first IGBT's in 3 current transformers
Duty ratio dx1(θ) is multiplied by penalty coefficient ρ1Duty ratio d after being compensatedx1 *(θ), in which:
ρ1=1- ω2-ω3-ω4-ω5
Step 3.3.2: according to the output compensation calculation penalty coefficient ρ between each battery pack2, by the tenth IGBT's in 3 current transformers
Duty ratio dX, 10(θ) is multiplied by penalty coefficient ρ2Duty ratio d after being compensatedx10 *(θ), in which:
ρ2=1+ ω2+ω3+ω4+ω5
Step 3.3.3: the output between each battery pack is compensated into ωi′Multiplied by dx1(θ) and dX, 10The difference of (θ), and by the product knot
Fruit adds to dxp(θ) obtains on each current transformer duty ratio d after the second to the 9th IGBT compensationxp *(θ), wherein 2≤p≤9.
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201061144Y (en) * | 2007-04-20 | 2008-05-14 | 上海输配电股份有限公司 | Dynamic voltage compensator using three single-phase structure |
| JP2009171652A (en) * | 2008-01-11 | 2009-07-30 | Toshiba Mitsubishi-Electric Industrial System Corp | Power conversion device |
| CN202111633U (en) * | 2011-02-24 | 2012-01-11 | 广州智光电气股份有限公司 | Photovoltaic grid-connected inverter |
| CN102403919A (en) * | 2010-09-07 | 2012-04-04 | 夏普株式会社 | Multilevel inverter |
| CN102594187A (en) * | 2012-02-20 | 2012-07-18 | 阳光电源股份有限公司 | Four-level topological unit and application circuit thereof |
| CN104953589A (en) * | 2015-06-08 | 2015-09-30 | 兰州理工大学 | Combined three-phase microgrid system with serially-connected microsource inverters |
| CN205453532U (en) * | 2015-12-31 | 2016-08-10 | 阳光电源股份有限公司 | Five inverter and application circuit thereof |
| JP2019054564A (en) * | 2017-09-12 | 2019-04-04 | ローム株式会社 | Ac/dc converter |
| US20190140449A1 (en) * | 2015-09-13 | 2019-05-09 | Alpha Technologies Inc. | Power control systems and methods |
| US10658920B2 (en) * | 2015-11-13 | 2020-05-19 | Marquette University | Fault-tolerant topology for multilevel T-type converters |
-
2019
- 2019-06-21 CN CN201910542733.0A patent/CN110277927B/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201061144Y (en) * | 2007-04-20 | 2008-05-14 | 上海输配电股份有限公司 | Dynamic voltage compensator using three single-phase structure |
| JP2009171652A (en) * | 2008-01-11 | 2009-07-30 | Toshiba Mitsubishi-Electric Industrial System Corp | Power conversion device |
| CN102403919A (en) * | 2010-09-07 | 2012-04-04 | 夏普株式会社 | Multilevel inverter |
| CN202111633U (en) * | 2011-02-24 | 2012-01-11 | 广州智光电气股份有限公司 | Photovoltaic grid-connected inverter |
| CN102594187A (en) * | 2012-02-20 | 2012-07-18 | 阳光电源股份有限公司 | Four-level topological unit and application circuit thereof |
| CN104953589A (en) * | 2015-06-08 | 2015-09-30 | 兰州理工大学 | Combined three-phase microgrid system with serially-connected microsource inverters |
| US20190140449A1 (en) * | 2015-09-13 | 2019-05-09 | Alpha Technologies Inc. | Power control systems and methods |
| US10658920B2 (en) * | 2015-11-13 | 2020-05-19 | Marquette University | Fault-tolerant topology for multilevel T-type converters |
| CN205453532U (en) * | 2015-12-31 | 2016-08-10 | 阳光电源股份有限公司 | Five inverter and application circuit thereof |
| JP2019054564A (en) * | 2017-09-12 | 2019-04-04 | ローム株式会社 | Ac/dc converter |
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