CN207859983U - A kind of system converted and controlled for electric energy - Google Patents
A kind of system converted and controlled for electric energy Download PDFInfo
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- CN207859983U CN207859983U CN201820147916.3U CN201820147916U CN207859983U CN 207859983 U CN207859983 U CN 207859983U CN 201820147916 U CN201820147916 U CN 201820147916U CN 207859983 U CN207859983 U CN 207859983U
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Abstract
This application involves for electric energy conversion and control technology.The system that this application provides a kind of to convert and control for electric energy, the system comprises multiport electric device, the multiport electric device includes：First AC port, AC/DC modules, DC circuit and multiple DC/DC modules；The wherein described DC circuit is switched via the first direct current channel, the second direct current channel switch, third direct current channel switch, the 4th direct current channel switch are respectively connected to the first DC port, the second DC port, third DC port and the 4th DC port.The circuit structure of DC circuit is changed by the above-mentioned switching respectively switched.The application may be implemented filling for high efficient and flexible and store up control, capacity management and operation.
Description
Technical field
This application involves energy storage charging technique more particularly to electric energy conversion and control technologies.
Background technology
With the rise of electric vehicle industry, there is the charging dress of some New-type charge energy storage one in charging pile field
It sets.These charging units either reduce grid electricity fee cost by battery using power grid peak valley price differential, or be designed to it is mobile with
Meet the emergent charging of off-network type.When electric automobile market continuous enlargement, it will generate new technological challenge and the market demand：
When the limitation of power matching network capacity, as inner city electric power facility can not upgrade the requirement for meeting while charging；Second is that a large amount of
Retired echelon power battery can utilize, but since type is more, performance difference is big, and grouping is integrated again has drawn high use cost；
Third, flexibility and efficiency cannot be taken into account by currently filling storage integrated device, it is not suitable with the multiple-working mode requirement of station grade.
A kind of improved electric energy conversion of this field needs and control technology.
Utility model content
In consideration of it, the application is intended to provide the electric device and its control method for taking into account flexibility and efficiency.
According to one aspect, this application provides a kind of multiport electric device, the electric device includes：At least three ends
Mouth, DC network and AC/DC modules, wherein at least three port includes at least one AC port and at least two
DC port, at least one DC port of the electric device is connected to the first DC equipment, and the electric device is extremely
Few to be connected to the second DC equipment there are one DC port, the electric energy conversion and transmission between the port are via the electrical dress
It sets to realize.
According to one embodiment, at least one AC port connection AC power or AC network, the DC terminal
Mouth connection external dc power or DC grid；First DC equipment is selected from following one：DC power supply, accumulation power supply,
Or electric vehicle；Second DC equipment is direct-current charging post.
According to one embodiment, the DC network includes DC circuit, and the AC port passes through the AC/DC modules
It is connected to the DC circuit.
According to one embodiment, the AC/DC modules are one-way or bi-directional.
According to one embodiment, first DC equipment is connected to the DC network by DC/DC modules.
According to one embodiment, the DC/DC modules are two-way.
According to one embodiment, the change of the connection type between the change of the circuit structure of the DC network, port,
And/or flow of electrical power direction and distribution are realized by the switching of multiple switch.
According to one embodiment, the DC network is used for voltage matches and the parallel connection of same type battery.
According to one embodiment, the DC network realizes that system effectiveness improves by the switching of multiple switch.
According to one embodiment, the DC port adapts to the battery of different voltage levels.
According to one embodiment, the AC port is not connected to AC power or AC network.
According to another aspect, this application provides a kind of controller for the electric energy conversion and transmission between multiport,
The control object of the controller includes：AC/DC modules, two-way DC/DC modules, DC charging stubs and DC circuit, institute
It states controller and controls flow of electrical power direction and work(between external ac power source or power grid and DC circuit by AC/DC modules
Rate, the controller control the energy flow between DC circuit and external dc power or power grid by two-way DC/DC modules,
The controller controls charging voltage or electric current by DC charging stubs.
According to one embodiment, the controller is required according to user or energy-storage battery state, passes through the switching of each switch
Change the topological structure of the DC circuit, and changes flow of electrical power direction and efficiency.
According to another aspect, the system that this application provides a kind of to convert and control for electric energy, the system comprises：The
One AC port, AC/DC modules, DC circuit and multiple DC/DC modules；The wherein described DC circuit is via the first direct current
Channel switch, the second direct current channel switch, third direct current channel switch, the 4th direct current channel switch are respectively connected to the first direct current
Port, the second DC port, third DC port and the 4th DC port；First communication channel switch one end with it is described
AC/DC modules connect, and the other end and the first direct current channel switch, the second direct current channel of the first communication channel switch switch, the
Three direct current channels switch, the switch connection of the 4th direct current channel；First direct current channel switch is connected to the first DC/DC modules；First
By-pass switch be connected across the first direct current channel switch the first DC port between, and with the first DC/DC wired in parallel；First
DC/DC modules are connected to the first DC port；Second channel switch is connected to the 2nd DC/DC modules；Second by-pass switch bridges
Second channel switch the second DC port between, and with the 2nd DC/DC wired in parallel；2nd DC/DC modules are connected to
Second DC port；Third channel switch is connected to third DC port；Lead between second DC port and third DC port
Cross across channel switch connection；Fourth lane switch is connected to the 3rd DC/DC modules；3rd DC/DC modules are connected to the 4th direct current
Port.
According to one embodiment, the circuit structure of the DC circuit is changed by the above-mentioned switching respectively switched.
According to one embodiment, the first communication channel switch is closed；First direct current channel switchs and the 4th direct current channel is opened
It closes and closes；Second direct current channel switch, third direct current channel switch, the first by-pass switch, the second by-pass switch and across channel
Switch disconnects.
According to one embodiment, the second direct current channel switch and third direct current channel switch are closed, and rest switch disconnects.
According to one embodiment, the first communication channel switch, third direct current channel switch and the 4th direct current channel switch close
It closes, rest switch disconnects.
According to one embodiment, the first direct current channel switch, third direct current channel switch and the 4th direct current channel switch close
It closes, rest switch disconnects.
According to one embodiment, the first direct current channel switch and third direct current channel switch are closed, and rest switch disconnects.
According to another aspect, the method that present invention also provides a kind of to convert and control for electric energy, including：According to each friendship
Stream and the case where DC port and user demand determines each channel switch and across the target operating condition and directly of channel switch
Flow the object construction of busbar；It determines the target operating voltage of DC bus, and determines by-pass switch target operating condition；It adjusts straight
Busbar voltage is flowed to target operating voltage；The structure of circuit is changed into object construction by switching；According on off state and control
Work limit condition is arranged in target processed；And according to the control targe under target operational mode, closed loop control is made to control targe
System.
According to one embodiment, the target operational mode is one of the following：DC/DC on-line modes, efficiency mode, off-network
Pattern.
According in another aspect, the computer system that present invention also provides a kind of to convert and control for electric energy, the system
System includes：At least one logic processor；Computer readable storage medium, the computer-readable recording medium storage is for holding
The following computer executable instructions operated of row：It determines the target operating voltage of DC bus, and determines by-pass switch target work
Make state；DC bus-bar voltage is adjusted to target operating voltage；The structure of circuit is changed into object construction by switching；According to
Work limit condition is arranged on off state and control targe；And according to the control targe under target operational mode, to controlling mesh
It is denoted as closed-loop control.
The existing storage integral product that fills lacks the ability for being flexibly compatible with a variety of echelon batteries, though or compatible electric energy service efficiency
Lowly, and the existing ability filled storage integral product and lack flexible a variety of power flowcontrol patterns.Electric energy provided by the present application turns
The impact that DC high-power charging brings power distribution network can be alleviated with control technology by changing, and solve distribution capacity bottleneck；The application
The intermittence for also considering charging station load is made charging load using energy-storage battery smooth；Automobile power cell is made full use of to move back
Residual capacity (such as 80%) after labour may be implemented the integrated of a variety of different batteries and recycle；In addition, this application provides
A kind of integrating device of charging pile and retired battery, to realize that filling for high efficient and flexible stores up control, capacity management and operation；The application
Can meet the needs of single machine and station grade.
Description of the drawings
Be included in this and constitute the attached drawing of this specification part and show the exemplary embodiment of the application, and with it is above
The utility model content and specific implementation mode given below provided is used for explaining the feature of the application together.
Fig. 1 is a kind of schematic diagram filling storage device according to existing design.
Fig. 2 is according to the conversion of the electric energy of one embodiment of the application and control system schematic diagram.
Fig. 3 is the circuit diagram according to the electric device of one embodiment of the application.
Fig. 4 is the circuit diagram according to the electric device of one embodiment of the application.
Fig. 5 is the circuit diagram according to the electric device of another embodiment of the application.
Fig. 6 is the controlling electric energy schematic diagram of embodiment according to Fig.5,.
Fig. 7 is the circuit diagram according to the electric device of another embodiment of the application.
Fig. 8 is the controlling electric energy schematic diagram of embodiment according to Fig.7,.
Fig. 9 is the circuit diagram according to the electric device of another embodiment of the application.
Figure 10 is the controlling electric energy schematic diagram of embodiment according to Fig.9,.
Figure 11 is the circuit diagram according to the electric device of the further embodiment of the application.
Figure 12 is the controlling electric energy schematic diagram according to embodiment illustrated in fig. 11.
Figure 13 is according to a kind of conversion of electric energy of one embodiment of the application and control method flow chart.
Figure 14 is the exemplary computer system according to one embodiment of the application.
Specific implementation mode
It will be described in detail with reference to the accompanying drawings various embodiments.In place of possible, same reference numerals will pass through attached drawing for referring to
For same or like part.To particular example and reference made by realizing is for explanatory purposes, and to be not intended to limit the application
Or the scope of the claims.
Wording " exemplary " is used herein to mean that " as example, example or showing ".Here depicted as " example
Property " any realization be not necessarily to be construed as preferred or advantageous over other realize.
Fig. 1 is a kind of schematic diagram filling storage device according to existing design.With reference to figure 1, the device provides an exchanges
Port (such as AC port 1) is connected with power grid, one or more DC ports (such as DC port 1-4) respectively with energy-storage battery,
Photovoltaic is connected with direct-current charging post.However, all DC equipments (power supply, energy-storage battery or electric vehicle) all pass through in the device
Electric power electronic module DC/DC is connected on common DC bus.Although can realize under grid-connected conditions to the charging of electric vehicle and
The collocation of different batteries, but sacrifice system effectiveness.This is because electric power electronic module is more in loop of power circuit, whole efficiency compared with
It is low.Usual level-one electric power electronic module efficiency is about 95%, even if not counting the efficiency for charge-discharge of energy-storage battery, existing design exist
Electric energy is usually no more than 90% by least Two Stages, whole efficiency under different working modes.
This application provides a kind of conversion of electric energy and control technologies.Plug-in electromobile is needed through vehicle-mounted energy-storage battery
Power is provided for automobile, the energy process of filling of the battery charges as electric vehicle.Power battery is after length of service, though it is discontented with
The use condition of sufficient electric vehicle, but its remaining life can still meet other stored energy applications.These are demarcated by detection again,
Even being grouped integrated battery modules again is known as the retired battery of echelon.This application provides a kind of multiport power electronic equipments
And its control method.In addition, present invention also provides the varistructure circuits for including electric power electronic module and switch.The circuit can
To include multiport power electronic equipment, wherein multiport power electronic equipment can be multiport multipotency converting means.Multiterminal
Mouth multipotency converting means can connect various forms of power supplys, including alternating current-direct current with the electrical port of multiple AC or DCs
Power grid, a variety of power generator (such as photovoltaic, wind-driven generator, diesel-driven generator) and the load of different alternating current-direct currents, are different ends
Mouth provides conversion and the control (control of such as conversion of voltage, frequency, power flow direction and size) of electric energy.In addition, multiport is electric
Power electronic device may include multiple one-way or bi-directional AC/DC, DC/DC modules, switch, realtime power measurement module and control
System etc..
Fig. 2 shows the schematic diagrames converted according to the electric energy of one embodiment of the application with control system.The electric energy turns
It may include multiport electric device 201 and controller 203 to change with control system.Multiport electric device 201 can have can
Structure changes circuit, the varistructure circuit can by electric power electronic module and switch come change circuit structure (hereafter will be detailed
It states).Multiport electric device 201 may include one or more ports.As an example, Fig. 2 shows multiport electric device
201 include AC port 1-n and DC port 1-n.AC port 1-n can connect exchange feeder line 1-n.DC port 1-n
Energy-storage battery 1, energy-storage battery 2 and the vehicle-mounted battery of electric vehicle etc. can be connected.Controller 203 and multiport electric device
201 communications, to control the conversion of the electric energy between multiport and transmission.
Fig. 3 is the circuit diagram according to the electric device of one embodiment of the application.Such as the electric device can be with
It is multiport electric device 301.Multiport electric device 301 may include one or more ports.As an example, multiport is electric
These ports of device of air 301 include at least one AC port and at least two DC ports.AC port connects alternating current
Source or AC network.DC port connects external dc power or DC grid.At least one DC port of the electric device
It is connected to the first DC equipment (such as energy-storage battery), at least one DC port is connected to the second DC equipment, and (such as direct current fills
Electric stake).In conjunction with Fig. 3, for example, multiport electric device 301 may include AC port 1 and DC port 1-4.AC port
1 can connect AC power or AC network, and DC port 1 may be coupled to energy-storage battery, and DC port 2 may be coupled to directly
Current charge stake.
Multiport electric device 301 can also include variable DC network and AC DC conversion module (AC/
DC modules).DC network may include switch and DC circuit.AC port 1 can be connected to direct current by AC/DC modules
Circuit.AC/DC modules can be unidirectional (electric energy from AC-to DC) or two-way.AC/DC modules can pass through switch
(such as channel switch 0) is connected to DC network.DC circuit energy-storage battery can be connected to DC circuit by DC/DC modules,
And DC/DC modules can be two-way.DC circuit can change circuit structure by the switching of multiple switch, realize port
Between different connection types, and realize different flow of electrical power directions and distribution.For example, as shown in figure 3, DC circuit can be with
It is connected to DC port 1-4 via four channels.It can be via channel switch 1, channel switch 2, channel switch 3, channel switch
4, by-pass switch 1, by-pass switch 2, and change the circuit structure of DC circuit across the switching of channel switch 23.It is specific and
Speech, one end of channel switch 0 are connect with AC/DC modules, and the other end of channel switch 0 is connect with channel switch 2-4.Channel switch
1 is connected to the first DC/DC modules；By-pass switch 1 is connected across between channel switch 1 and DC port 1, and with the first DC/DC
Wired in parallel；First DC/DC modules are connected to DC port 1.Channel switch 2 is connected to the 2nd DC/DC modules；By-pass switch 2
Be connected across between channel switch 2 and DC port 2, and with the 2nd DC/DC wired in parallel；2nd DC/DC modules are connected to directly
Flow port 2.Channel switch 3 is connected to DC port 3.It can be by across channel switch 23 between DC port 2 and DC port 3
Connection.Channel switch 4 is connected to the 3rd DC/DC modules；3rd DC/DC modules are connected to DC port 4.DC circuit can be used
Voltage matches in same type battery and parallel connection.DC circuit can realize that system effectiveness carries by the switching of multiple switch
It is high.DC port is adapted to the battery of different voltage levels.
Controller 303 is communicated with multiport electric device 301, to control the conversion of the electric energy between multiport and transmission.
The object that controller 303 controls may include AC/DC modules, two-way DC/DC modules, DC charging stubs and DC circuit.
Wherein DC charging stubs can be unidirectional DC/DC modules, only realize the one-way flow of power, such as female from public direct-current
Line is to DC port power transmission.Controller 303 can be controlled by AC/DC modules external ac power source or power grid and DC circuit it
Between flow of electrical power direction and power.Controller 303 can control DC circuit and external dc electricity by two-way DC/DC modules
Energy flow between source or power grid.Controller 303 can control charging voltage or electric current by direct-current charging post.Controller
303 can limit according to the electricity and charge-discharge magnification and grid power of energy-storage battery, to distribute the power or electric current of each port
Instruction, these instructions, which are transferred in module controller, to be executed.Wherein module controller can be AC/DC modules, two-way DC/DC
Module, the included controller of DC charging stubs, realizes the power/voltage/current control of this module.Controller 303 can be with
The instruction for responding central control system, the external communication power grid power supply connected for the electric device.External electrical network power supply is used for
The capacity for controlling entire electrical system is no more than limitation.Wherein entire electrical system may include that multiple aforementioned multiports electrically fill
It sets, the controller switching equipments such as power distribution cabinet and other Distribution Network Load Datas and equipment including but not limited to illuminate, air-conditioning etc..Controller 303
According to user's requirement or energy-storage battery state, determines the switching of each switch, changes the topological structure of DC circuit in the device with this,
And change flow of electrical power direction and efficiency.
Fig. 4 is the circuit diagram according to the electric device of one embodiment of the application.Such as the electric device can be with
It is multiport electric device.Multiport electric device can be communicated with controller.As shown in figure 4, thickened portion is to pass through switch
The energy channel of realization.Communication channel switch 0 is closed, and direct current channel switch 1 and 4 is closed, and rest channels and by-pass switch disconnect.
At this time AC/DC control DC bus-bar voltage be given value (such as 600V), channel 4 connect charging pile, channel 1 connect energy-storage battery or
The DC power supply of other forms.The common DC bus side in channel 1 and 4 is operated under current control mode.
Other embodiment includes the enabled of other direct current channels switch, is closed as channel 2 and 3 switchs, and rest channels are opened
Pass and by-pass switch disconnection etc..
Fig. 5 is the circuit diagram according to the electric device of another embodiment of the application.This example show DC/
DC on-line modes.In conjunction with Fig. 5, electric energy conversion connects AC power with control system.When channel 1 uses two-way DC/DC, DC terminal
Mouth 1 connects energy-storage battery, and channel 4 is DC charging piles and connecting electric automobile.In this embodiment it is possible to the power flow realized
Including：1) AC power (channel 0) and energy-storage battery (channel 1) combine gives electric vehicle charging, with solve exchange off-capacity,
The problem of volume controlled or the cost of electric energy；2) AC power (channel 0) charges to energy-storage battery (channel 1) and stake (channel 4)；3)
Energy-storage battery (channel 1) is powered to stake and AC network.It is female to undertake control direct current by the AC/DC of control channel 0 under these three patterns
The effect of line voltage, the charging of DC/DC (stake) the control electric vehicles in channel 4, and the electric current of the DC/DC control channels 1 in channel 1
Direction and size.Electric current on known charge stake common DC bus can realize that exchange is logical by the current control in channel 1
The control of power flow direction and size on road.
Fig. 6 is the controlling electric energy schematic diagram of embodiment according to Fig.5,.As shown in fig. 6, I0=I1+I4, when ignoring AC/
When loss on DC, Pgrid=V0*I0.It is thus known that the electric current and common DC bus voltage V0 in channel 4, you can determine logical
The given value of current value in road 1, to control grid power Pgrid.
Fig. 7 is the circuit diagram according to the electric device of another embodiment of the application.This example show effects
Rate pattern.In conjunction with Fig. 7, when electric energy conversion connects AC power, and DC/DC by-pass switches closure or direct screening channel with control system
(such as channel 3) connects energy-storage battery.Such as channel switch 0,3,4 is closed, rest switch disconnects；Or channel switch 0, Isosorbide-5-Nitrae are closed,
By-pass switch 1 is closed, and rest switch disconnects, and can also realize identical purpose.
Fig. 8 is the controlling electric energy schematic diagram of embodiment according to Fig.7,.As shown in figure 8, I0=I3+I4, when ignoring AC/
When loss on DC, Pgrid=V0*I0.At this time due to there is no controllable electric power electronic module, the control of electric current on channel 3
It can only be controlled by AC/DC, the output of the current closed-loop is the voltage given value of common DC bus.
Fig. 9 is the circuit diagram according to the electric device of another embodiment of the application.This example show from
Net pattern.In conjunction with Fig. 9, disconnected by channel switch 0 so that the disconnection of alternating current path 0, by energy-storage battery or other DC power supplies, is
Stake or the power supply of other DC networks.
Figure 10 is the controlling electric energy schematic diagram of embodiment according to Fig.9,.With reference to Fig. 9 and Figure 10, channel 3 is as accessed
Direct voltage source (such as energy-storage battery), then the common DC bus voltage i.e. output voltage of the direct voltage source.V0=V3, I1+
I3=I4.At this time since access 3 is without passing through electric power electronic module, electric current and power flow direction must be by the electric power of other accesses
Electronic module is completed, such as passes through the electric current or work(of control access 4 (stake) and the Current Indirect Control access 3 of access 1 (DC/DC)
Rate.
Figure 11 is the circuit diagram according to the electric device of the further embodiment of the application.This example show same
The voltage matches of type cell and parallel connection.As shown in figure 11, such as the switch of channel 1 is closed, and by-pass switch 1 disconnects, and channel 3 switchs
It is closed, rest channels switch disconnects.
Figure 12 is the controlling electric energy schematic diagram according to embodiment illustrated in fig. 11.With reference to Figure 11 and Figure 12, at this point, I1
=-I3, V0=V3, the energy-storage battery charge and discharge by the DC/DC of control access 1 to access 1, may finally make V1=V3
(V1 is 1 energy-storage battery output voltage of channel, and V3 is 3 energy-storage battery output voltage of channel).Then the DC/DC in channel 1 can be allowed
It is stopped, and is closed by-pass switch 1, the direct trim to realize access 1 and 3 energy-storage batteries is in parallel.Access is opened after parallel connection
1 and 3 is closed, by-pass switch 1 can work asynchronously.
In present embodiments, since the loss of by-pass switch relative power electronic module can be ignored, when
Operating condition meets, and after by-pass switch is closed, the efficiency of the access can improve 4%~5% (by electric power electronic module efficiency
95% estimation).Since the interconnection of different voltages level circuitry may be implemented in DC/DC, system can connect different voltages battery
On the DC bus public to one.
In addition, alternatively, AC port can be not connected to AC power or AC network.For example, when alternating current path is opened
When shutdown is opened, system becomes only DC power supply or the attachment device of load.Main application scenarios can be DC distribution system
System, such as peculiar to vessel or airborne DC distribution, the DC distribution of photovoltaic plant.
Figure 13 is shown according to a kind of conversion of electric energy of one embodiment of the application and control method flow chart.In step
1301, controller is according to (such as including voltage, electric current and/or power capacity) the case where each AC and DC port and user
Demand (such as the operating modes such as automobile charge and discharge, energy-storage battery charge and discharge, feedback grid, volume controlled) determines that each channel is opened
It closes and across the target operating condition of channel switch and the object construction of DC bus.In step 1303, according to voltage matches and effect
The requirement of rate optimization determines the target operating voltage of DC bus, and determines by-pass switch target operating condition.In step
1305, controller adjusts DC bus-bar voltage to target by sending instructions to each electric power electronic module (each AC/DC and DC/DC)
Then voltage issues a command to each switch, the structure for changing circuit is object construction.In step 1307, controller is according to switch shape
State and control targe, setting work limit condition (limit value of such as voltage and current and power).Step 1309 controller according to
Specific control targe (such as constant current charge, constant voltage charge, grid power) under target operational mode, issues a command to an electricity
Power electronic module, and closed-loop control is made to control targe.
In the application, by the electric device including power electronics and the varistructure of switch, modular channel can be with
Match the energy-storage battery of different voltages or capacity；And make electric power in energy transport by by-pass switch and across channel switch
The series of electronic module is minimum or module utilization is maximum, is maximized to reach system effectiveness.Pass through controller and switch
Folding, can adjust the power flow of each port, meet total group of plan of vehicle and energy storage charge and discharge, reduce and fill operation cost (such as
The high simultaneity factor of Vehicular charging, low charging cost) and power system capacity management demand.It, can by the folding of controller and switch
With each energy-storage battery impulse electricity number of reasonable distribution and power, extend the service life of energy-storage battery, or obtain the storage that can plan
It can battery altering and maintenance time table.
It will be understood by those skilled in the art that each step of the schematic electric energy conversion and control method of the application is suitable
Sequence is also only unrestricted as signal.In addition, the application schematic electric energy conversion and control method be not limited to it is above-mentioned each
Step, but can also include following optional step：It can determine that each channel is opened according to battery charging and discharging historgraphic data recording
It closes and across the target operating condition of channel switch and the object construction of DC bus.Device can be logical with station grade control system
Letter.Station grade control system can be according to battery capacity and charge-discharge magnification, Vehicular charging plan, and generating each port power needs
It asks.By history charge and discharge data, current residual electricity, charge-discharge magnification and battery temperature, the service life for calculating battery is lost.
For above-mentioned optional step, database may be used and carry out log history data record.Device can be via communication network
Network is communicated with station grade control system.Station grade control system (or device local input interface) can provide each port
Electrical energy demands (such as voltage, electric current, power, amplitude limit value etc.).Station grade control system can be according to the life situations of energy-storage battery
With safeguard target, provide optimal use condition (such as charge and discharge frequency, charging and discharging currents or power limit value or optimal curve).
Compared to existing design be provided solely for single-mode (such as all energy-storage batteries all pass through DC/DC access, or only
One battery modules access DC bus), the application by provide electric power electronic module (AC/DC and DC/DC) and switch come
Voltage with different energy-storage batteries.Following advantageous effect may be implemented in the application：Same type energy-storage battery is in parallel, and such as newly-increased one
Group direct screening battery, can first disconnect the channel switch, by after voltage leveling (such as by being connected to other channels across channel switch
DC/DC carry out impulse electricity, after voltage and former direct screening battery are identical, disconnect across channel switch), it is real to reclose the channel switch
Existing similar cell parallel.It may be implemented flexibly to switch from multiple-working mode under the conditions of grid-connected (referring to AC network), realize only logical
AC network is crossed, or only by energy-storage battery, or is combined by AC network and energy-storage battery and charged to electric vehicle.Switched
Journey is automatically performed by controller, and without artificial change wiring, each channel power distribution is also automatically performed by controller.Off-network condition
Under, the by-pass switch of respective channel can be closed according to system effectiveness principle of optimality so that the efficiency in the channel is able to promote (example
As can be usually improved 4% or more).Direct current channel can support the distributed generation resource (such as photovoltaic and wind-powered electricity generation) of direct current output to connect
Enter, if any additional AC port, then can support the access of diesel-driven generator or small gas machine.
Optionally, in the DC circuit of varistructure, various switches can use electronic switch or be blocked with two-way
The electric power electronic module of ability is replaced.Control algolithm (includes the control of electric power electronic module, instruction generates, and opening for switch is closed
Close, the protection of module and system, the Optimized Operation etc. of operation) realization can be local or station grade control system realize,
It can also remotely be realized by cloud controller.The input of operating condition can be in Local or Remote (including station, cloud, or mobile
On electronic equipment) it carries out.
It should be appreciated that above-described embodiment only as an example, not a limit, those skilled in the art be further contemplated that it is more its
He converts and controls to realize electric energy method.Such realization method should not be interpreted to cause departing from scope of the present application.
With reference to figure 14, a kind of illustrative computer system 1400 is shown.Computer system 1400 may include logic
Processor 1402, such as execute core.Although illustrating a logic processor 1402, in other embodiments, computer
System 1400 can have multiple logic processors, for example, each multiple execution cores of processor substrate and/or multiple processors
Substrate, wherein each processor substrate can have multiple execution cores.As shown, various computer readable storage mediums 1410
It can be interconnected by one or more system bus, various system components are coupled to logic processor by the system bus
1402.If system bus can be any types in the bus structures of dry type, including memory bus or memory control
Device, peripheral bus and the local bus using any one of various bus architectures.Illustratively implementing
In example, computer readable storage medium 1410 may include such as random access memory (RAM) 1404, storage device 1406
It (for example, electromechanical hard drives, solid-state hard drives etc.), firmware 1408 (for example, quick flashing RAM or ROM) and detachably deposits
Store up equipment 1418 (such as CD-ROM, floppy disk, DVD, flash drive, External memory equipment etc.).Those skilled in the art
Member is it should be recognized that other types of computer readable storage medium, such as cassette, flash card and/or number can be used
Video disc.Computer readable storage medium 1410 can provide the executable instruction 1422 of computer, data structure, program mould
The non-volatile and volatile storage of block and other data for computer system 1400.Basic input/output
(BIOS) 1420 --- it includes the bases of all help transinformations between the unit of computer system 1400 as during start-up
This routine program --- it can be stored in firmware 1408.A large amount of program can be stored in firmware 1408, storage device
1406, it on RAM 1404 and/or removable memory device 1418, and can be executed by logic processor 1402, logic processor
1402 include operating system and/or application program.Order and information can be by input equipments 1416 by computer system 1400
It is received, input equipment 1416 can include but is not limited to keyboard and sensing equipment.Other input equipments may include microphone,
Control stick, game paddle, scanner etc..These and other input equipment is often through the serial end for being coupled to system bus
Mouthful interface and be connected to logic processor 1402, but can also be connected by other interfaces, such as parallel port, game
Port or universal serial bus (USB).It is total that display or other types of display equipment can also be connected to system via interface
Line, such as video adapter can be a parts for graphics processing unit 1412 or be connected to graphics processing unit 1412.
In addition to display, computer typically comprises other peripheral output devices, such as loud speaker and printer (not shown).Figure 14
Exemplary system can also include host adapter, small computer system interface (SCSI) bus and being connected to SCSI
The External memory equipment of bus.Computer system 1400 can (such as, some be remote using one or more remote computers
Journey computer) logical connection networked environment in operate.Remote computer can be other computer, server, routing
Device, network PC, peer device or other common network nodes, and typically may comprise above with respect to computer system
Multiple or all units in the unit of 1400 descriptions.When in LAN or WAN networked environments in use, computer system 1400
It can be connected to LAN or WAN by network interface card 1414.Network interface card (NIC) 1414 (it can be internal or external)
It may be connected to system bus.In networked environment, relative to computer system 1400 describe program module or they
Some parts can be stored in remote memory storage device.It will be appreciated that network connection described herein is demonstration
Property, and the other means for establishing communication link between the computers can be used.
In one or more exemplary embodiments, described function and process can hardware, software, firmware,
Or any combination thereof in realize.If realized in software, each function can be used as the instruction of one or more items or code to deposit
Storage is transmitted on a computer-readable medium or by it.Computer-readable medium includes computer storage media and communication media
The two comprising any medium for facilitating computer program to shift from one place to another.Storage medium can be calculated
Any usable medium that machine accesses.It is non-limiting as example, such computer-readable medium may include RAM, ROM,
EEPROM, CD-ROM or other optical disc storage, disk storage or other magnetic storage apparatus can be used to carrying or store instruction
Or data structure form desirable program code and any other medium that can be accessed by a computer.For firmware and/or software
It realizes, these methods can be realized with the module (for example, program, function etc.) for executing functions described herein.It is tangible
Any machine readable media that ground embodies instruction can be used for realizing method system described herein.For example, software code can
It is stored in the memory of memory of such as movement station etc, and by such as desktop computer, laptop computer, service
Device computer, mobile device the processors such as microprocessor execute.Memory may be implemented inside processor or outside processor
Portion.As it is used herein, term " memory " refer to any kind of long-term, short-term, volatibility, it is non-volatile or other
Memory, and it is not limited to the Jie of any certain types of memory or certain number of memory or memory storage on it
The type of matter.
Foregoing description and diagram are only used as illustrated examples to provide.Any of claim element of singulative is drawn
It states, such as should not be construed as the element being limited to odd number using the citation of article " one ", " certain " or "the".Technical staff for
Each specific application can realize described structure with different modes, but such realization method should not be interpreted to cause
Departing from scope of the present application.
The previous description for providing the disclosed embodiments is to make any person skilled in the art all can make or use
The application.The various modifications of these embodiments will be apparent for a person skilled in the art, and defined herein
General Principle can be applied to other embodiments without departing from spirit herein or range.The application is not intended to as a result,
It is defined in embodiments shown herein, but should be awarded and appended claims and principle disclosed herein and novelty
The consistent broadest range of feature.
Claims (7)
1. a kind of system converted and controlled for electric energy, the system comprises multiport electric device, the multiport is electrical
Device includes：First AC port, AC/DC modules, DC circuit and multiple DC/DC modules；The wherein described DC circuit warp
It is separately connected by the first direct current channel switch, the second direct current channel switch, third direct current channel switch, the 4th direct current channel switch
To the first DC port, the second DC port, third DC port and the 4th DC port；First communication channel switch
One end is connect with the AC/DC modules, and the other end and the first direct current channel switch, the second direct current of the first communication channel switch are logical
Road switch, third direct current channel switch, the switch connection of the 4th direct current channel；First direct current channel switch is connected to the first DC/DC
Module；First by-pass switch be connected across the first direct current channel switch the first DC port between, and with the first DC/DC modules
It is in parallel；First DC/DC modules are connected to the first DC port；Second channel switch is connected to the 2nd DC/DC modules；Second bypass
Switch be connected across second channel switch the second DC port between, and with the 2nd DC/DC wired in parallel；2nd DC/DC moulds
Block is connected to the second DC port；Third channel switch is connected to third DC port；Second DC port and third DC terminal
By being connected across channel switch between mouthful；Fourth lane switch is connected to the 3rd DC/DC modules；3rd DC/DC modules are connected to
4th DC port.
2. the system as claimed in claim 1, which is characterized in that the circuit structure of the DC circuit is by above-mentioned each switch
Switching change.
3. the system as claimed in claim 1, which is characterized in that the first communication channel switch is closed；First direct current channel switchs
It switchs and is closed with the 4th direct current channel；Second direct current channel switch, third direct current channel switch, the first by-pass switch, by second
It way switch and is disconnected across channel switch.
4. the system as claimed in claim 1, which is characterized in that the second direct current channel switchs and third direct current channel switch closes
It closes, rest switch disconnects.
5. the system as claimed in claim 1, which is characterized in that the first communication channel switch, third direct current channel switch and the
Four direct current channels switch is closed, and rest switch disconnects.
6. the system as claimed in claim 1, which is characterized in that the first direct current channel switch, third direct current channel switch and the
Four direct current channels switch is closed, and rest switch disconnects.
7. the system as claimed in claim 1, which is characterized in that the first direct current channel switchs and third direct current channel switch closes
It closes, rest switch disconnects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820147916.3U CN207859983U (en) | 2018-01-29 | 2018-01-29 | A kind of system converted and controlled for electric energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820147916.3U CN207859983U (en) | 2018-01-29 | 2018-01-29 | A kind of system converted and controlled for electric energy |
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| CN207859983U true CN207859983U (en) | 2018-09-14 |
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| CN201820147916.3U Active CN207859983U (en) | 2018-01-29 | 2018-01-29 | A kind of system converted and controlled for electric energy |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110103749A (en) * | 2018-01-29 | 2019-08-09 | 上海韧思能源科技有限公司 | A kind of system and method converted and controlled for electric energy |
| TWI690129B (en) * | 2018-11-29 | 2020-04-01 | 國家中山科學研究院 | Regenerative power generation and energy storage system using current inner loop adjustment |
| TWI692172B (en) * | 2018-11-29 | 2020-04-21 | 國家中山科學研究院 | Energy conversion module architecture using active current inner loop adjustment |
| WO2020113932A1 (en) * | 2018-12-03 | 2020-06-11 | 珠海格力电器股份有限公司 | Circuit, ac/dc conversion module, direct-current microgrid and control method therefor |
| CN114256918A (en) * | 2021-12-03 | 2022-03-29 | 摩拜(北京)信息技术有限公司 | Charging cabinet, charging control method and device thereof, and electronic equipment |
-
2018
- 2018-01-29 CN CN201820147916.3U patent/CN207859983U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110103749A (en) * | 2018-01-29 | 2019-08-09 | 上海韧思能源科技有限公司 | A kind of system and method converted and controlled for electric energy |
| CN110103749B (en) * | 2018-01-29 | 2024-05-17 | 上海韧思能源科技有限公司 | System and method for electric energy conversion and control |
| TWI690129B (en) * | 2018-11-29 | 2020-04-01 | 國家中山科學研究院 | Regenerative power generation and energy storage system using current inner loop adjustment |
| TWI692172B (en) * | 2018-11-29 | 2020-04-21 | 國家中山科學研究院 | Energy conversion module architecture using active current inner loop adjustment |
| WO2020113932A1 (en) * | 2018-12-03 | 2020-06-11 | 珠海格力电器股份有限公司 | Circuit, ac/dc conversion module, direct-current microgrid and control method therefor |
| CN114256918A (en) * | 2021-12-03 | 2022-03-29 | 摩拜(北京)信息技术有限公司 | Charging cabinet, charging control method and device thereof, and electronic equipment |
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