CN105186630B - A kind of electric energy transfer method and a kind of electric energy bus - Google Patents
A kind of electric energy transfer method and a kind of electric energy bus Download PDFInfo
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- CN105186630B CN105186630B CN201510667585.7A CN201510667585A CN105186630B CN 105186630 B CN105186630 B CN 105186630B CN 201510667585 A CN201510667585 A CN 201510667585A CN 105186630 B CN105186630 B CN 105186630B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
Multiple power supply units and power receiving equipment by the switch being uniformly controlled with electric energy bus are connect, realize and controllable electric energy transfer is carried out between power supply unit and power receiving equipment by a kind of electric energy transfer method disclosed by the invention and a kind of electric energy bus respectively.
Description
Technical field
The present invention relates to electric energy transfer technical fields.
Background technology
It overcharges and seriously affects the cycle life of battery or even cause fire incident, due to the inconsistency of battery
In the presence of conventional serial charging technique can cause percentage of batteries to be in overcharged state when charging to battery pack.
Over-discharge seriously affects the cycle life of battery, and due to the presence of the inconsistency of battery, series battery exists
During discharge off, the depth of discharge of each single battery is inconsistent, and which part battery can be in over-discharge state, other part
There is the available remaining capacity in part to be not used in battery, so as to cause percentage of batteries premature failure in battery pack, and whole group is more
It changes, the other part still battery in available mode is caused to be scrapped together and causes to waste.
Using the electric energy of battery pack as the system of power, it is increasingly being equipped with various generating equipments and is used for increasing battery pack
Cruise duration, such as steam-electric power plant, Brake energy recovery equipment, damping capacity reclaimer, and using these hairs
When electric equipment charges to battery pack, will the output voltage of generating equipment first be converted into the voltage level to battery pack again to battery
Group charges, and electric loss of energy can be caused in conversion.
Using the electric energy of battery pack as the system of power, control section and fractional load are needed using the power supply of low-voltage
Want additional DC-DC converter that the high voltage of battery pack is converted into the low-voltage of control system needs, DC-DC converter can be made
Into additional energy loss, and increase weight, volume and cost；Such as electric bicycle in the system of part low cost, in order to
Cost is reduced, eliminates DC-DC converter, directly uses the output voltage of power battery pack as auxiliary electricals such as loudspeaker, car lights
Equipment is powered, and the voltage of wherein power battery pack is generally 36V, 48V, 60V even 72V, considerably beyond human safety voltage,
And these auxiliary electric equipments have the scattered electric shock risk for being distributed in handlebar and vehicle body surrounding, increasing bicyclist.
The Chinese patent of Patent No. ZL201520115163.4 discloses a kind of electricity transfer bus system, which carries
Go out the concept of electricity transfer bus, but the battery of wherein realization electricity transfer is all the intelligent battery from tape control unit, it is right
Volume, weight, the cost of battery have higher requirements, and are restricted in popularization and application.
Invention content
A kind of electric energy transfer method disclosed by the invention and a kind of electric energy bus, by multiple power supply units and power receiving equipment point
It is not connect by the switch being uniformly controlled with electric energy bus, realizes that controllable electric energy is carried out between power supply unit and power receiving equipment to be turned
It moves.
A kind of electric energy transfer method disclosed by the invention realizes controllable electric energy transfer in series connection electric power storage system system, main
To include electric energy reallocation and the equilibrium of electric power storage group, which is characterized in that including the series connection electric power storage group of 1 or more, the confession of 1 or more
Electric equipment is connect respectively by switching with electric energy bus, and the power receiving equipment of 1 or more is connect respectively by switching with electric energy bus,
Wherein：
The electric energy includes：Direct current energy or direct current energy and AC energy；
Conducting wire of the electric energy bus for 2 ~ 5 mutually insulateds；During by electric energy bus transfer direct current energy, electric energy bus
Use the anode and cathode of 2 conducting wires, respectively direct current；During by electric energy bus transfer single phase ac electric energy, electric energy bus
Using 2 or 3 conducting wires, 2 lines are respectively firewire L and zero curve N, and 3 lines are respectively firewire L, zero curve N and ground wire GND；Pass through
During electric energy bus transfer threephase AC electric energy, electric energy bus uses 4 or 5 conducting wires, and 4 lines are respectively A, B, C and N, 5 lines
Respectively A, B, C, N and GND；
The switch includes physical switch and electronic switch, and quantity is 2 or more, each switches on-off and is controlled by higher level
The control of system, for power supply unit and electric energy bus electrically connect or disconnect and power receiving equipment and electric energy bus
In connecting or disconnecting electrically, switch includes the physical switch such as relay, contactor, transistor and electronic switch；
The quantity of the power supply unit be 1 or more, including generating equipment, can externally export electric energy electric energy storage device and can
The externally electric energy relay device of output electric energy；Wherein generating equipment includes the hairs such as chemical energy, mechanical energy, thermal energy, luminous energy and wind energy
Electric equipment, electric energy storage device include battery and capacitance, and electric energy relay device includes AC-AC a-c transducers or power supply, AC-DC direct currents
The various powers of alterating and direct current such as converter or power supply, DC-AC inverter, DC-DC converter and conversion equipment, charger can be considered
State a kind of electric energy relay device of power supply class；The power supply unit of 2 or more can be with access electric energy bus after serial or parallel connection；
The quantity of the power receiving equipment is 1 or more, including electrical load, acceptable extraneous electric energy electric energy storage device and can
Receive the electric energy relay device of extraneous electric energy；Wherein electrical load includes various the electronic equipment such as lamps, loudspeaker run by electric energy
, controller etc., electric energy storage device includes battery and capacitance, and electric energy relay device includes AC-AC a-c transducers or power supply, AC-
The various powers of alterating and direct current such as DC direct current transducers or power supply, DC-AC inverter, DC-DC converter and conversion equipment, charger can
It is considered as a kind of electric energy relay device of above-mentioned power supply class；The power receiving equipment of 2 or more can be total to access electric energy after serial or parallel connection
Line；
It is electrical negative including at least 1 other power supply unit or 1 in power supply unit and power receiving equipment in addition to electric energy storage device
It carries；
The series connection electric power storage group, for storing direct current energy；Part or all of electric energy storage device in electric power storage group of connecting（It is typical
Ground, for a string of electric energy storage devices in series connection electric power storage group）, can both be used as power supply unit（Can supplying power for outside electric energy storage device）,
Power receiving equipment can be used as（The electric energy storage device of acceptable external world's electric energy）Electric energy bus is accessed by switch；
In electric energy transfer, the voltage of the electric energy storage device of power supply can be less than, equal to or higher than powered electric energy storage device
Voltage；
Between electric energy storage device during transfer electrical energy, exporting the remaining capacity of the electric energy storage device of electric energy can be less than, be equal to or high
In the remaining capacity for the electric energy storage device for receiving electric energy.
A kind of electric energy bus disclosed by the invention, including electric energy bus and several switches, in series connection electric power storage system system
It is middle to realize controllable electric energy transfer, mainly including electric energy reallocation and the equilibrium of electric power storage group, which is characterized in that including 1 or more
Series connection electric power storage group, the power supply unit of 1 or more connect respectively by switching with electric energy bus, and the power receiving equipment of 1 or more divides
It is not connect by switching with electric energy bus, wherein：
The electric energy includes：Direct current energy or direct current energy and AC energy；
Conducting wire of the electric energy bus for 2 ~ 5 mutually insulateds；During by electric energy bus transfer direct current energy, electric energy bus
Use the anode and cathode of 2 conducting wires, respectively direct current；During by electric energy bus transfer single phase ac electric energy, electric energy bus
Using 2 or 3 conducting wires, 2 lines are respectively firewire L and zero curve N, and 3 lines are respectively firewire L, zero curve N and ground wire GND；Pass through
During electric energy bus transfer threephase AC electric energy, electric energy bus uses 4 or 5 conducting wires, and 4 lines are respectively A, B, C and N, 5 lines
Respectively A, B, C, N and GND；
The switch includes physical switch and electronic switch, and quantity is 2 or more, each switches on-off and is controlled by higher level
The control of system, for power supply unit and electric energy bus electrically connect or disconnect and power receiving equipment and electric energy bus
In connecting or disconnecting electrically, switch includes the physical switch such as relay, contactor, transistor and electronic switch；
The quantity of the power supply unit be 1 or more, including generating equipment, can externally export electric energy electric energy storage device and can
The externally electric energy relay device of output electric energy；Wherein generating equipment includes the hairs such as chemical energy, mechanical energy, thermal energy, luminous energy and wind energy
Electric equipment, electric energy storage device include battery and capacitance, and electric energy relay device includes AC-AC a-c transducers or power supply, AC-DC direct currents
The various powers of alterating and direct current such as converter or power supply, DC-AC inverter, DC-DC converter and conversion equipment, charger can be considered
State a kind of electric energy relay device of power supply class；The power supply unit of 2 or more can be with access electric energy bus after serial or parallel connection；
The quantity of the power receiving equipment is 1 or more, including electrical load, acceptable extraneous electric energy electric energy storage device and can
Receive the electric energy relay device of extraneous electric energy；Wherein electrical load includes various the electronic equipment such as lamps, loudspeaker run by electric energy
, controller etc., electric energy storage device includes battery and capacitance, and electric energy relay device includes AC-AC a-c transducers or power supply, AC-
The various powers of alterating and direct current such as DC direct current transducers or power supply, DC-AC inverter, DC-DC converter and conversion equipment, charger can
It is considered as a kind of electric energy relay device of above-mentioned power supply class；The power receiving equipment of 2 or more can be total to access electric energy after serial or parallel connection
Line；
It is electrical negative including at least 1 other power supply unit or 1 in power supply unit and power receiving equipment in addition to electric energy storage device
It carries；
The series connection electric power storage group, for storing direct current energy；Part or all of electric energy storage device in electric power storage group of connecting（It is typical
Ground, for a string of electric energy storage devices in series connection electric power storage group）, can both be used as power supply unit（Can supplying power for outside electric energy storage device）,
Power receiving equipment can be used as（The electric energy storage device of acceptable external world's electric energy）Electric energy bus is accessed by switch；
In electric energy transfer, the voltage of the electric energy storage device of power supply can be less than, equal to or higher than powered electric energy storage device
Voltage；
Between electric energy storage device during transfer electrical energy, exporting the remaining capacity of the electric energy storage device of electric energy can be less than, be equal to or high
In the remaining capacity for the electric energy storage device for receiving electric energy.
The basic principle of electric energy bus is as shown in Figure 1：Power supply unit 1 is connect by switch 102 with electric energy bus 101, is supplied
Electric equipment 2 is connect by switch 103 with electric energy bus 101, and power receiving equipment 1 is connect by switch 104 with electric energy bus 101, by
Electric equipment 2 is connect by switch 105 with electric energy bus 101, and power receiving equipment 3 is connect by switch 106 with electric energy bus 101, is opened
The break-make of pass 102 ~ 106 is controlled by higher level's control system；In an ON state, rest switch is in be disconnected switch 102 and 105
State, power supply unit 1 access electric energy bus 101 with power receiving equipment 2, and electric energy transfer path is at this time：Power supply unit 1 passes through switch
102nd, electric energy bus 101, switch 105 provide electric energy to power receiving equipment 2.
2 groups or more of electric energy bus can cascade use, intermediate to be connected by the electric energy relay device of 1 or more；2 groups of electricity
For the energy cascade schematic block diagram of bus as shown in Fig. 2, electric energy bus 201 and 202 is cascade connection, generating equipment 1 passes through switch 203
It is connect with first group of electric energy bus 201, generating equipment 2 is connect by switch 204 with first group of electric energy bus 201, electric energy transfer
The input terminal of equipment 1 is connect by switch 205 with first group of electric energy bus 201, and the input terminal of electric energy relay device 2 passes through switch
206 connect with first group of electric energy bus 201, and electrical load 1 is connect by switch 207 with first group of electric energy bus 201, in electric energy
The output terminal for turning equipment 1 is connect by switch 208 with second group of electric energy bus 202, and the output terminal of electric energy relay device 2 is by opening
It closes 209 to connect with second group of electric energy bus 202, electric energy storage device 1 is connect by switch 210 with second group of electric energy bus 202, electric power storage
Equipment 2 is connect by switch 211 with second group of electric energy bus 202, and electrical load 2 passes through switch 212 and second group of electric energy bus
202 connections, the break-make of switch 203 ~ 212 are controlled by higher level's control system；Switch 203,205,208,211 is in connection shape
State, other switches are off；Generating equipment 1 and electric energy relay device 1 access electric energy bus 201, electric energy relay device 1
Electric energy bus 202 is accessed with electric energy storage device 2, electric energy transfer path is at this time：Generating equipment 1 passes through switch 203, electric energy bus
201st, switch 205, electric energy relay device 1, switch 208, electric energy bus 202, switch 211 are powered to electric energy storage device 2.
2 groups or more of electric energy bus can be used in parallel, to improve the efficiency of electric energy transfer；2 groups of electric energy bus parallel connections
Schematic block diagram as shown in figure 3, electric energy bus 301 and 302 be parallel relationship, power supply unit 1 respectively by switch 303 and 304 with
Electric energy bus 301 and 302 connects, and power supply unit 2 is connect by switch 305 with electric energy bus 301, and power supply unit 3 passes through switch
306 connect with electric energy bus 302, and power receiving equipment 1 is connect respectively by switch 307 and 308 with electric energy bus 301 and 302, by electricity
Equipment 2 is connect respectively by switch 309 and 310 with electric energy bus 301 and 302, and power receiving equipment 3 is total with electric energy by switch 311
Line 301 connects, and power receiving equipment 4 is connect by switch 312 with electric energy bus 302；The break-make of switch 303 ~ 312 is controlled by higher level
The control of system；In an ON state, other switches are off switch 303,306,307,311 and 312；Power supply unit 1,
Power receiving equipment 1 and power receiving equipment 3 access electric energy bus 301, and power supply unit 3 and power receiving equipment 4 access electric energy bus 302, at this time
Electric energy transfer path is：Power supply unit 1 is 1 and of power receiving equipment by switch 303, electric energy bus 301, switch 307 and switch 311
Power receiving equipment 3 is powered, and power supply unit 3 is powered by switch 306, electric energy bus 302 and switch 312 for power receiving equipment 312.
It is possible to further use 3 groups of electric energy buses（Every group of electric energy bus is 2 conducting wires）Parallel connection transmission three-phase alternating current
Can, wherein 2 conducting wires of first group of electric energy bus are A and N, 2 conducting wires of second group of electric energy bus are B and N, third group electric energy
2 conducting wires of bus are C and N.
Further, the electrical specification of the power supply unit of same group of electric energy bus of synchronization access and power receiving equipment（Such as
Ac/dc electricity, voltage, electric current, frequency, power etc.）Match.
Further, the wire gauge of electric energy bus matches with the voltage of electric energy, the electric current shifted.
Further, the electric energy storage device include battery pack, some single battery in battery pack or battery pack in 1 with
The single battery of upper continuous series；Electric energy storage device includes 1 or more in some monomer capacitance in capacitance group, capacitance group or capacitance group
The monomer capacitance of continuous series.
Further, when electric energy storage device is in charging, standby or discharge condition, it each may participate in electric energy transfer.
Further, it is carried out between generating equipment, electric energy storage device, electrical load, electric energy relay device by electric energy bus
Electric energy transfer, including：
Generating equipment is directly powered to electrical load, such as embodiment 3；
Generating equipment is charged by electric energy relay device to electrical load, such as embodiment 4；
Generating equipment directly charges to electric energy storage device, such as embodiment 3；
Generating equipment is charged by electric energy relay device to electric energy storage device, such as embodiment 4；
Electric energy storage device is directly powered to electrical load, such as embodiment 4；
Electric energy storage device is powered by electric energy relay device to electrical load, such as embodiment 4；
Potential-free relationship or with same potential relationship electric energy storage device between electric energy transfer：Electric energy storage device is directly to electric power storage
Equipment power supply i.e. charging or electric energy storage device are charged by electric energy relay device to electric energy storage device power supply, such as embodiment 2；
Electric energy transfer between electric energy storage device with different potential relationships：Electric energy storage device is by electric energy relay device to electric power storage
Equipment power supply is charged, such as embodiment 1.
Beneficial effects of the present invention：
The individual monomers battery in battery pack is avoided to overcharge and over-discharge, extends battery life, avoids fire
Hidden danger；
The cycle life of all single batteries in battery pack is approached, avoids wasting；
Multiple generating equipments share an electric energy converting equipment, so as to reduce weight, volume and cost；
The output voltage of generating equipment is reduced, reduces the loss in electric energy conversion, increases the cruise duration of battery pack；
Generating equipment can directly power to electrical load, eliminate and first charge to battery pack, then be supplied from battery pack to load
The process of electricity reduces the conversion times of electric energy, improves energy conversion rate, and extend battery life increases the continuous of battery pack simultaneously
ETS estimated time of sailing；
The supply voltage of ancillary equipment can be reduced, avoids electric shock risk.
Description of the drawings
Fig. 1 is the basic principle schematic block diagram of electric energy bus；
Fig. 2 is 2 groups of cascade schematic block diagrams of electric energy bus；
Fig. 3 is the schematic block diagram of 2 groups of electric energy bus parallel connections；
Fig. 4 is the schematic diagram of embodiment 1；
Fig. 5 is the schematic diagram of embodiment 2；
Fig. 6 is the schematic diagram of embodiment 3；
Fig. 7 is the schematic diagram of embodiment 4.
Specific embodiment
The present invention is further elaborated below by specific embodiment, following embodiment is descriptive, is not limit
Qualitatively, it is impossible to protection scope of the present invention is limited with this, i.e., those skilled in the art can right according to the present invention will
The principle is asked to realize more functions by appropriate transformation and replacement or expand the application range of this patent.
Embodiment 1 has electric energy transfer --- certain list in same series battery between the electric energy storage device of potential relationship
Body battery is to another single battery transfer electrical energy, as shown in Figure 4：
The battery pack of electric vehicle, 1# ~ 5# battery strings binding groups, be different capabilities battery mixed marshalling, wherein 1# batteries
Not only participate in the confession electricity output of entire battery pack, also by 403 and 404 it is additional electric energy is outwardly provided, wherein 1# ~ 5# batteries,
DC-DC chargers are connect respectively by switching with electric energy bus 401 and 402, and all switches are independently controlled by higher level's control system
System；
When electric energy transfer occurs：Control switch 405 ~ 410 is connected, remaining all switch disconnects, and 1# batteries pass through switch 405
With 406 access electric energy buses 402, the input terminal of DC-DC chargers passes through 407 access electric energy bus 402 of switch, DC-DC chargings
The output terminal of device accesses electric energy buses 401 by 408 access electric energy bus 401 of switch, 3# batteries by switching 409 and 410, from
And it realizes 1# batteries and electric energy transfer is carried out to 3# batteries by DC-DC chargers and is charged；
In the present embodiment, 1# batteries are as power supply unit（The electric energy storage device of electric energy is provided）, DC-DC chargers are as electric energy
Relay device, 3# batteries are as power receiving equipment（Receive the electric energy storage device of electric energy）, electric energy is participated in by electric energy bus 401 and 402
Transfer, wherein electric energy bus 401 and 402 are cascade connection, and the electric energy shifted in electric energy bus 401 and 402 in transfer process is all
Direct current energy, in transfer process no matter the voltage of 1# batteries be less than, the voltage equal to or higher than 3# batteries or 1# batteries
Remaining capacity be less than, the remaining capacity equal to or higher than 3# batteries, can carry out electric energy transfer.
Embodiment 2, the electric energy transfer between the electric energy storage device of potential-free relationship --- 2 series connection single batteries are to another electricity
2 series connection monomer battery transfer electric energy in the group of pond, as shown in Figure 5：
The battery pack of electric vehicle is divided into the battery pack of 2 groups of independence, and wherein 1# ~ 5# battery strings binding group is used for dynamical system
System power supply, 6# and 7# battery strings bindings group are used to power to air-conditioning；1# ~ 7# batteries respectively by switch with electric energy bus 501 and
502 connections, all switches are by higher level's control system independent control；
When electric energy transfer occurs：Control switch 503 ~ 508 is connected, remaining all switch disconnects, after the series connection of 6# and 7# batteries
By 503 and 504 access electric energy bus 502 of switch, the input terminal of DC-DC chargers passes through 505 access electric energy bus of switch
502nd, output terminal passes through 507 and 508 access electric energy of switch by 506 access electric energy bus 501 of switch after the series connection of 3# and 4# batteries
Bus 501 carries out electric energy transfer to 3# and 4# batteries by DC-DC chargers so as to fulfill 6# and 7# batteries and charges；
In the present embodiment, power supply unit is used as after the series connection of 6# and 7# batteries（The electric energy storage device of electric energy is provided）, 3# and 4# electricity
Power receiving equipment is used as after the series connection of pond（Receive the electric energy storage device of electric energy）, DC-DC chargers as electric energy relay device, pass through electric energy
Bus 501 and 502 participates in electric energy transfer, and wherein electric energy bus 501 and 502 is cascade connection, electric energy bus 501 in transfer process
With 502 in shift is all direct current energy.
Embodiment 3, generating equipment are powered to electric energy storage device transfer electrical energy, generating equipment to electrical load, as shown in Figure 6：
The battery pack of electric vehicle is divided into the battery pack of 2 groups of independence, wherein 1# ~ 5# battery strings binding group, 6# and 7# battery strings
Binding group, 1# ~ 7# batteries, DC-DC chargers, DC load 1 and 2 and solar cell are total with electric energy by switching respectively
Line 601 and 602 connects, and all switches are by higher level's control system independent control；
When electric energy transfer occurs, control switch 603 ~ 607 is connected, remaining all switch disconnects, and 4# batteries pass through switch 605
With 606 access electric energy buses 601, the output terminal of solar cell passes through 603 access electric energy bus 601 of switch, solar cell
Another output terminal by 604 access electric energy buses 602 of switch, filled to 4# battery transfers electric energy so as to fulfill solar cell
Electricity, while solar cell is powered to 2 transfer electrical energy of electrical load；
In the present embodiment, solar cell is as power supply unit（Generating equipment）, 4# batteries are as power receiving equipment（Receive electricity
The electric energy storage device of energy）, electrical load 1 be used as power receiving equipment（Electrical load）, electric energy is participated in by electric energy bus 601 and 602 and is turned
It moves, wherein electric energy bus 601 and 602 is parallel relationship, and during electric energy transfer, what is shifted in electric energy bus 601 and 602 is all
Direct current energy.
Embodiment 4, for AC power generating apparatus by electric energy relay device to electric energy storage device transfer electrical energy, AC power generating apparatus is straight
It connects to AC load transfer electrical energy, electric energy storage device loads transfer electrical energy by electric energy relay device to DC electrical, such as Fig. 7 institutes
Show；
The battery pack of electric vehicle is divided into the battery pack of 2 groups of independence, wherein 1# ~ 5# battery strings binding group, 6# and 7# battery strings
Binding group, 1# ~ 7# batteries, AC-DC converter, generator, AC load 2, DC-DC converter and DC load 4 pass through respectively
Switch is connect with electric energy bus 701 ~ 705, and all switches are by higher level's control system independent control；
When electric energy transfer occurs, control switch 706 ~ 717 is connected, remaining all switch disconnects, and generator passes through switch 706
Electric energy bus 703 is accessed, AC-DC converter is respectively connected to electric energy bus 701 by switch 707 and 708 and 703,1# battery lead to
709 and 710 access electric energy bus 701 of switch is crossed, AC load 2 is by 711 access electric energy bus 704 of switch and passes through switch
712 access electric energy buses 703, for 5# batteries by 713 and 714 access electric energy bus 702 of switch, DC-DC converter passes through switch
715 and 716 are respectively connected to electric energy bus 702 and 705, and DC load 4 passes through 717 access electric energy bus 705 of switch；The electricity of generation
It can shift as follows：
Generator is charged by AC-DC converter to 1# battery transfers electric energy；
Generator is directly powered to 2 transfer electrical energy of AC load；
5# batteries are powered by DC-DC converter to 4 transfer electrical energy of DC load；
In the present embodiment, generator is as power supply unit（Generating equipment）, 5# batteries are as power supply unit（Electric energy is provided
Electric energy storage device）, AC-DC converter and DC-DC converters as electric energy relay device, 1# batteries as power receiving equipment（Receive electricity
The electric energy storage device of energy）, AC load and DC load 4 be used as power receiving equipment（Electrical load）Participate in electric energy transfer, wherein electric energy
Bus 703 and 701 is cascade connection, and electric energy bus 702 and 705 is cascade connection, and electric energy bus 703 and 704 passes through switch 711
It is connected to become one group of electric energy bus；During electric energy transfer, what is shifted in electric energy bus 701,702 and 705 is direct current energy, electricity
What is shifted in energy bus 703 and 704 is single phase ac electric energy.
Claims (2)
1. a kind of electric energy transfer method, for realizing controllable electric energy transfer in series connection electric power storage system system, mainly including electric energy
Reallocation and the equilibrium of electric power storage group, which is characterized in that including the series connection electric power storage group of 1 or more, the power supply unit difference of 1 or more
It being connect by switching with electric energy bus, the power receiving equipment of 1 or more is connect respectively by switching with electric energy bus, wherein：
The electric energy includes：Direct current energy or direct current energy and AC energy；
Conducting wire of the electric energy bus for 2 ~ 5 mutually insulateds；
The switch includes physical switch and electronic switch, and quantity is 2 or more, is each switched on-off by higher level's control system
Control, for power supply unit and electric energy bus electrically connect or disconnect and power receiving equipment with electric energy bus in electricity
Connecting or disconnecting on gas；
The quantity of the power supply unit be 1 or more, including generating equipment, can externally export electric energy electric energy storage device and can be external
Export the electric energy relay device of electric energy；The power supply unit of 2 or more can be with access electric energy bus after serial or parallel connection；
The quantity of the power receiving equipment is 1 or more, including electrical load, is subjected to the electric energy storage device of extraneous electric energy and is subjected to
The electric energy relay device of extraneous electric energy；The power receiving equipment of 2 or more can be with access electric energy bus after serial or parallel connection；
In power supply unit and power receiving equipment in addition to electric energy storage device, including at least 1 other power supply unit or 1 electrical load；
The series connection electric power storage group, for storing direct current energy；Part or all of electric energy storage device in electric power storage group of connecting, can both make
For power supply unit, can also be used as power receiving equipment pass through switch access electric energy bus；
In electric energy transfer, the voltage of the electric energy storage device of power supply can be less than, the voltage equal to or higher than powered electric energy storage device；
Between electric energy storage device during transfer electrical energy, exporting the remaining capacity of the electric energy storage device of electric energy can be less than, equal to or higher than connecing
By the remaining capacity of the electric energy storage device of electric energy.
2. a kind of electric energy bus, including electric energy bus and several switches, for realizing controllable electricity in series connection electric power storage system system
Can transfer, it is main to reallocate including electric energy and the equilibrium of electric power storage group, which is characterized in that including the series connection electric power storage group of 1 or more, 1
A above power supply unit is connect respectively by switching with electric energy bus, and the power receiving equipment of 1 or more passes through switch and electricity respectively
Energy bus connection, wherein：
The electric energy includes：Direct current energy or direct current energy and AC energy；
Conducting wire of the electric energy bus for 2 ~ 5 mutually insulateds；
The switch includes physical switch and electronic switch, and quantity is 2 or more, is each switched on-off by higher level's control system
Control, for power supply unit and electric energy bus electrically connect or disconnect and power receiving equipment with electric energy bus in electricity
Connecting or disconnecting on gas；
The quantity of the power supply unit be 1 or more, including generating equipment, can externally export electric energy electric energy storage device and can be external
Export the electric energy relay device of electric energy；The power supply unit of 2 or more can be with access electric energy bus after serial or parallel connection；
The quantity of the power receiving equipment is 1 or more, including electrical load, is subjected to the electric energy storage device of extraneous electric energy and is subjected to
The electric energy relay device of extraneous electric energy；The power receiving equipment of 2 or more can be with access electric energy bus after serial or parallel connection；
In power supply unit and power receiving equipment in addition to electric energy storage device, including at least 1 other power supply unit or 1 electrical load；
The series connection electric power storage group, for storing direct current energy；Part or all of electric energy storage device in electric power storage group of connecting, can both make
For power supply unit, can also be used as power receiving equipment pass through switch access electric energy bus；
In electric energy transfer, the voltage of the electric energy storage device of power supply can be less than, the voltage equal to or higher than powered electric energy storage device；
Between electric energy storage device during transfer electrical energy, exporting the remaining capacity of the electric energy storage device of electric energy can be less than, equal to or higher than connecing
By the remaining capacity of the electric energy storage device of electric energy.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510667585.7A CN105186630B (en) | 2015-10-16 | 2015-10-16 | A kind of electric energy transfer method and a kind of electric energy bus |
| EP16754767.8A EP3264560B1 (en) | 2015-02-24 | 2016-02-24 | Smart battery, electric energy allocation bus system and battery charging and discharging method |
| JP2017545542A JP2018509872A (en) | 2015-02-24 | 2016-02-24 | Smart battery, electric energy distribution bus system, battery charge / discharge method, and electric energy distribution method |
| PCT/CN2016/074491 WO2016134658A1 (en) | 2015-02-24 | 2016-02-24 | Smart battery, electric energy allocation bus system, battery charging and discharging method, and electric energy allocation method |
| CN201680011826.5A CN107408822A (en) | 2015-02-24 | 2016-02-24 | Intelligent battery, electric energy distribution bus, battery charging and discharging method and electric energy distribution method |
| US15/684,942 US10431996B2 (en) | 2015-02-24 | 2017-08-24 | Smart Battery, electric energy allocation bus system, battery charging and discharging method and electric energy allocation method |
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| EP3264560B1 (en) * | 2015-02-24 | 2019-12-04 | Beijing Samevolt Co., Ltd. | Smart battery, electric energy allocation bus system and battery charging and discharging method |
| CN105515152A (en) * | 2016-03-02 | 2016-04-20 | 刘光辰 | Electrical equipment matched with battery pack |
| CN109888766B (en) * | 2019-04-10 | 2020-09-15 | 珠海格力电器股份有限公司 | Bus electricity taking equipment, electricity utilization control method, device and system thereof, and electrical equipment |
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