CN107749642A - A kind of household energy router - Google Patents
A kind of household energy router Download PDFInfo
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- CN107749642A CN107749642A CN201711110212.5A CN201711110212A CN107749642A CN 107749642 A CN107749642 A CN 107749642A CN 201711110212 A CN201711110212 A CN 201711110212A CN 107749642 A CN107749642 A CN 107749642A
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- 238000004146 energy storage Methods 0.000 claims abstract description 24
- 230000005611 electricity Effects 0.000 claims abstract description 12
- 238000002955 isolation Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 22
- 239000013589 supplement Substances 0.000 claims description 13
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 7
- 230000000153 supplemental effect Effects 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 5
- 239000002283 diesel fuel Substances 0.000 claims description 3
- 230000002452 interceptive effect Effects 0.000 claims description 3
- 238000010248 power generation Methods 0.000 abstract description 4
- 238000005286 illumination Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 7
- 238000009826 distribution Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 239000005417 food ingredient Substances 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 235000013324 preserved food Nutrition 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
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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
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
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- H02J13/0013—
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- H02J13/0062—
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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
-
- H02J3/383—
-
- 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
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/388—Islanding, i.e. disconnection of local power supply from the network
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/10—Photovoltaic [PV]
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
-
- 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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
-
- 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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
-
- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
-
- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/12—Energy storage units, uninterruptible power supply [UPS] systems or standby or emergency generators, e.g. in the last power distribution stages
-
- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/242—Home appliances
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
A kind of household energy router, including grid-connected module, photovoltaic generating module, batteries to store energy module, diesel power generation module and household electric AC load module.Modules are incorporated to dc bus by routed port.Routed port includes converters, can be by electric energy and other energy（Such as illumination, oil）It is coupled to each other and is completed the work of rectification, inversion, isolation and buck.The present invention loaded towards household AC, and by the controller and communicating circuit of each port, energy management and information exchange are realized for master controller with grid-connected port；Energy router proposed by the present invention has multiple ports, a variety of generating equipments can be accessed simultaneously, energy storage device, household electricity load, and net state can be according to the peak valley and actual load demand of AC network, the flexibly size of control different-energy and flow direction, the energy flow between distinct device can be also realized in island state, comprehensive utilization of energy can be realized.
Description
Technical field
The present invention relates to converters and areas of information technology, more particularly to a kind of energy towards domestic loads
Measure router.
Background technology
In recent years, for alleviating energy crisis and environmental pollution, utilization of the distribution type renewable energy in power network is more next
It is more extensive, but these regenerative resources often have local position distribution, intermittence.This just needs to add substantial amounts of storage in power network
Can energy of the equipment for buffering these fluctuations.On the other hand, gradually dress is changed into centralization to traditional single centralized power generating network
The power generation mode coexisted with distribution, the one-way flow of electric energy also begin to be changed into multidirectional flowing.
In order to meet complexity and diversity requirements of the following power network to controlling electric energy, there is scholar to propose that following power network will be
On the basis of local consumption, using microgrid, intelligent residential district as autonomous unit, the interconnection of energy unit from bottom to top is formed.The U.S.
North Carolina state state university FREEDM centers propose the energy internet using energy router as core.It is therefore seen that collection
The efficient access and utilization of energy can be realized into ripe information technology, the energy router based on Technics of Power Electronic Conversion,
By as the core component of following power network, just paid attention to by increasing scholar.
A kind of energy router information technology that has been integrated fusion and Technics of Power Electronic Conversion technology, realize distributed energy
The electrical circuitry equipment for efficiently utilizing and transmitting.Technics of Power Electronic Conversion technology make electric energy router for various types of distributed power sources,
Energy storage device and novel load provide required electric energy interface shape.It is intelligent that information technology realizes energy router, distribution
Net carries out self-discipline operation at the control, and upper strata power-management centre need to only send the optimization operation of long period yardstick into net
Parameter, to realize that the optimization of the whole network is run.
CN2723723Y discloses a kind of wind, light, bavin complementary system control conversion integrated machine, preferentially uses solar energy and wind
The clean energy resourcies such as energy, and accumulator cell charging and discharging can be controlled.But the system is an off-grid system, local load can only be given to supply
Electricity, it is impossible to be incorporated into the power networks.CN102780267A discloses a kind of electric energy router that energy channel is formed using switch arrays,
Control is complicated, if single switch breaks down, the overall situation will be impacted.CN104682430A discloses one kind and is applied to energy
The energy router apparatus of source internet, belong to middle pressure scope.Existing energy router is concentrated mainly on AC network, mixing is handed over
Drift net, and LAN and backbone network are had focused largely on, the concern to low-voltage direct microgrid is less, and is planned in following intelligent grid
In all users be not only party in request, after honourable storage system, user can also produce and store electric power, can with power network and
Remaining user's free transaction electric power.Therefore, towards domestic loads and can utilize low-voltage direct microgrid active control scheduling energy
The energy router of stream is the important component of following intelligent grid.
The content of the invention
The object of the present invention is in view of the deficienciess of the prior art, the present invention proposes a kind of energy towards domestic loads
Measure router and its control method.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：
A kind of household energy router, including dc bus, router first port~router fifth port, control
Chip, port sensor acquisition process circuit, dc bus sensor acquisition process circuit, port switch drive circuit and communication
Circuit.
The dc bus is made up of positive and negative bus；Router first port~router fifth port is connected in parallel on direct current
On positive and negative bus；Port sensor acquisition process circuit gathers and handles the voltage of port, current signal, is then transmitted
To control chip；Dc bus sensor acquisition process circuit gathers voltage, the current signal of dc bus, is then transferred to control
Coremaking piece；Sampled data is collected and handled by control chip sends control signal, is controlled and route by port switch drive circuit
The closure of device first port~router fifth port middle port switch and disconnection and the working condition of converters,
Control chip in master controller keeps communication by communicating circuit and each routed port, and whole energy router passes through straight
Stream bus realizes the two-way flow of energy, and the two-way flow of information is realized by control chip.
During the AC network fault-free, it is connected to by router first port on dc bus, energy router work
Make in grid-connect mode；AC network failure, disconnects the 3-phase power converter in router first port, and energy router enters isolated island
Pattern.
Router first port~router the fifth port is respectively connected to AC network, photovoltaic cell, battery, bavin
Fry dried food ingredients motor and household electric AC load.
AC network is connected comprising a three-phase AC/DC current transformer and four port switch inside router first port
On dc bus, wherein three port switch use AC circuit breaker, a port switch uses dc circuit breaker；Router
Photovoltaic cell is connected on dc bus comprising an isolation DC-DC circuit and two port switch inside second port, its
Middle port switch selects dc circuit breaker；A two-way Buck/Boost circuit and an end are included inside the port of router the 3rd
Battery is connected on dc bus by mouth switch, and wherein port switch selects dc circuit breaker；Inside the port of router the 4th
Diesel-driven generator is connected on dc bus comprising a Boost-PFC circuit and two port switch, wherein Single port is opened
Pass uses dc circuit breaker, and another port switch uses AC circuit breaker；It is single-phase comprising one inside router fifth port
Household electric AC load is connected on dc bus by DC-AC inverter and two port switch, and one of port switch is adopted
With dc circuit breaker, another port switch uses AC circuit breaker.
Described router first port~voltage of the router fifth port after converters convert is
Udcin, DC bus-bar voltage Udc-bus, when power generation, AC network and energy storage device are transmitted electricity to dc bus,
Voltage must is fulfilled for U after conversiondcin=Udc-busNormal access leg bus could be realized.
By each router first port~router fifth port, dc bus and AC network, generating equipment (light
Volt battery, diesel engine), energy storage device, have 4 kinds with the energy flow mode between electric loading, i.e., energy flows into from generating equipment
Dc bus, energy flow to dc bus from energy storage device, and energy flows to dc bus from AC network, and energy is from dc bus
Outflow powers to the load, to energy storage device charging, to AC network feedback.
Router first port~router the fifth port all contains controller, and its control chip is an information fortune
Processing center is calculated, from FPGA and two kinds of microprocessor control chips of ARM, FPGA receives to be gathered from port sensor Acquisition Circuit
Port voltage, the current signal arrived, receive DC bus-bar voltage, electric current that dc bus sensor acquisition process circuit collects
Signal, send ARM after being collected to and carry out data and compare and computing, and receive the operation result that ARM is provided and produce control letter
Number, export and give port switch drive circuit, control the conducting state and port switch of converters in routed port
Closure and disconnection, interactive information stream be present between FPGA microprocessors control chip and ARM microprocessor control chips；Control core
Piece is the real time information intercommunication that Controller Area Network BUS CAN can realize each port, monitors each road in real time by communicating circuit
Whether normal by the voltage x current of port, the controller in router first port is master controller, and its control chip can pass through
Bus CAN completes the control to the sub-controller of router second port~router fifth port, realizes the bidirectional flow of information
It is dynamic.
Energy hole, grid-connection device, generating equipment (photovoltaic cell, diesel engine), energy storage device are carried out by control chip
With household electric AC load 5 modules access energy routing port, control modules realize the more of energy by dc bus
To flowing.
During the router first port connection AC network, energy router is operated under grid-connect mode, now diesel oil
Machine generator does not access dc bus, and only when AC network failure, energy router is under island mode and photovoltaic cell
When the sum total for the power that the general power and battery sent can provide can not meet electricity consumption total load, diesel-driven generator access is straight
Flow bus；
It is divided into two kinds of situations again under grid-connect mode：
1) photovoltaic cell sends out power enough to provide energy with electric loading, if power has residue, energy router
By remaining energy stores in battery, if also surplus, feeds back to AC network；
2) photovoltaic cell sends out underpower to be energized with electric loading, and battery can not also supplement difference power, then hand over
Power network is flowed to DC bus powered, and energy is sent to and uses electric loading.
Workflow under grid-connect mode is：
By data acquisition, control chip is to router second port, the port of router the 3rd, router fifth port
Voltage carries out matching judgment with DC bus-bar voltage；As satisfaction access dc bus condition Udcin=Udc-busWhen, control chip to
Port switch drive circuit sends control signal so that routed port switch closure, by photovoltaic cell, battery and household AC
Electric loading accesses dc bus, and voltage, the current signal of each routed port, control are gathered by port sensor acquisition process circuit
Coremaking piece sends out general power P to the photovoltaic cell for accessing dc buspvWith household electric total load PLPower calculation is carried out, is then compared
Compared with PpvWith family expenses electric loading PLSize, work as PL≦PpvWhen, photovoltaic cell energizes to electric loading；Meanwhile if there is the energy of surplus
Amount, then charged to battery, whether the power output for continuing to detect the router second port that photovoltaic cell is accessed also is full of
It is remaining, if still there is surplus, dump energy feedback is fed back to AC network by router first port.Work as PL＞ PpvWhen, it is first
The first energy storage P for the battery that the 3rd port of detection route is connectbatCan supplemental capacity vacancy enough, if Pbat≥|PL-Ppv|, then
It can supplement, remaining energy vacancy is supplemented to electric loading；If Pbat＜ | PL-Ppv|, then it can not supplement, then to exchange microgrid
Ask for energy and carry out supplemental capacity vacancy, exchange microgrid is energized by router first port to family expenses electric loading.
During the router first port connection AC network failure, AC network does not access energy router, energy road
It is operated in by device under island mode.
Workflow under island mode is：
By data acquisition, control chip is to router second port, the port of router the 3rd, router fifth port
Voltage carries out matching judgment with DC bus-bar voltage；As satisfaction access dc bus condition Udcin=Udc-busWhen, control chip to
Port switch drive circuit sends control signal so that routed port switch closure, by photovoltaic cell, battery and household AC
Electric loading accesses dc bus, and voltage, the current signal of each routed port, control are gathered by port sensor acquisition process circuit
Coremaking piece sends out general power P to the photovoltaic cell for accessing dc buspvWith household electric total load PLPower calculation is carried out, is then compared
Compared with PpvWith family expenses electric loading PL size, work as PLDuring≤Ppv, photovoltaic cell energizes to electric loading；Meanwhile if there is the energy of surplus
Amount, then charged to battery, work as PL＞ PpvWhen, the energy storage P for the battery that detection router the 3rd port is connect firstbatCan
Enough supplemental capacity vacancy, if Pbat≥|PL-Ppv|, then it can supplement, remaining energy vacancy is supplemented to electric loading；If Pbat
＜ | PL-Ppv|, then battery can not supplement, then by data acquisition, control chip to the voltage of the port of router the 4th with it is straight
Flow busbar voltage and carry out matching judgment, meet access conditions Udcin=Udc-busWhen, by the port of router the 4th by diesel generation
Machine is connected to dc bus, and energy vacancy is supplied by diesel-driven generator, is energized to domestic loads.
Compared with prior art, the present invention has advantages below and beneficial effect：Energy routing utensil proposed by the present invention
There are multiple routed ports, different generating equipments, energy storage device can be accessed simultaneously, be managed collectively and controlled with electric loading；
The present invention realizes the energy flow between distinct device to maintain power to put down by effective energy management under island mode
Weighing apparatus, and surplus energy can actively feed back to AC network under grid-connect mode, improve capacity usage ratio；It is an advantage of the invention that face
To domestic loads, the family of installation light storage can realize that active control dispatches energy stream by the present invention, and user is no longer electric energy
Party in request, while can produce and store electric power, higher economy can be obtained with power network and remaining user's free transaction electric power
Benefit.
Energy router communication structure proposed by the present invention is simple, is connected with each other between each control chip, and it is mutual to complete information
Logical, control chip realizes lower floor's physical message and the mutual conversion of upper strata digital information and the two-way flow of information.
Brief description of the drawings
Fig. 1 is household energy router topology figure；
Fig. 2 is controller communication circuit diagram in each routed port；
Fig. 3 is energy hole flow chart under grid-connected mode of operation；
Fig. 4 is energy hole flow chart under isolated island mode of operation.
Embodiment
The present invention is further elaborated with specific implementation below in conjunction with the accompanying drawings.
Fig. 1 is a kind of household energy router structure chart, the router include dc bus, router first port~
Router fifth port, control chip, port sensor acquisition process circuit, dc bus sensor acquisition process circuit, end
Mouth switch driving circuit and communicating circuit.
The dc bus is made up of positive and negative bus；Router first port~router fifth port is connected in parallel on direct current
On positive and negative bus；Port sensor acquisition process circuit gathers and handles the voltage of port, current signal, is then transmitted
To control chip；Dc bus sensor acquisition process circuit gathers voltage, the current signal of dc bus, is then transferred to control
Coremaking piece；Sampled data is collected and handled by control chip sends control signal, is controlled and route by port switch drive circuit
The closure of device first port~router fifth port middle port switch and disconnection and the working condition of converters,
Control chip in master controller keeps communication by communicating circuit and each routed port, and whole energy router passes through straight
Stream bus realizes the two-way flow of energy, and the two-way flow of information is realized by control chip；
During the AC network fault-free, it is attached to by router first port on dc bus, energy router work
Make in grid-connect mode；AC network failure, disconnects the 3-phase power converter in router first port, and energy router enters isolated island
Pattern.
Router first port~router the fifth port is respectively connected to AC network, photovoltaic cell, battery, bavin
Fry dried food ingredients motor and household electric AC load.
As shown in figure 1, it will be exchanged comprising 1 three-phase AC/DC current transformer and 4 port switch inside router first port
Power network is connected on dc bus, wherein 3 port switch use AC circuit breaker, remaining 1 uses dc circuit breaker；Route
Photovoltaic cell is connected on dc bus comprising 1 isolation DC-DC circuit and 2 port switch inside device second port, its
Middle port switch selects dc circuit breaker；1 two-way Buck/Boost circuit and 1 port are included inside the port of router the 3rd
Battery is connected on dc bus by switch, and wherein port switch selects dc circuit breaker；Wrapped inside the port of router the 3rd
Diesel-driven generator is connected on dc bus containing 1 Boost-PFC circuit and 2 port switch, wherein 1 port switch uses
Dc circuit breaker, remaining 1 uses AC circuit breaker；1 single-phase DC-AC inverter and 2 are included inside router fifth port
Household electric AC load is connected on dc bus by individual port switch, wherein 1 port switch uses dc circuit breaker, residue 1
It is individual to use AC circuit breaker.
Described router first port~voltage of the router fifth port after converters convert is
Udcin, DC bus-bar voltage Udc-bus, when power generation, AC network and energy storage device are transmitted electricity to dc bus,
Voltage must is fulfilled for U after conversiondcin=Udc-busNormal access leg bus could be realized.
By each router first port~router fifth port, dc bus and AC network, generating equipment (light
Volt battery, diesel engine), energy storage device, have 4 kinds with the energy flow mode between electric loading, i.e., energy flows into from generating equipment
Dc bus, energy flow to dc bus from energy storage device, and energy flows to dc bus from AC network, and energy is from dc bus
Outflow powers to the load, to energy storage device charging, to AC network feedback.
Described router first port 1~router fifth port all contains controller, and its control chip is a letter
Calculation process center is ceased, from FPGA and two kinds of microprocessor control chips of ARM, FPGA is received and come from port sensor Acquisition Circuit
Port voltage, the current signal collected, receive dc bus sensor acquisition process circuit collect DC bus-bar voltage,
Current signal, send ARM after being collected to and carry out data and compare and computing, and receive the operation result that ARM is provided and produce control
Signal processed, export and give port switch drive circuit, control the conducting state of converters and port in routed port
The closure of switch and disconnection, interactive information stream be present between FPGA microprocessors control chip and ARM microprocessor control chips.
As shown in Fig. 2 control chip is by communicating circuit, it is that Controller Area Network BUS CAN can realize each port
Real time information intercommunication, monitor whether the voltage x current of each routed port is normal, and the controller in router first port is in real time
Master controller, its control chip can be completed to control the son of router second port~router fifth port by bus CAN
Device 1-4 control, realize the two-way flow of information.
Energy hole, grid-connection device, generating equipment (photovoltaic cell, diesel engine), energy storage device are carried out by control chip
With household electric AC load 5 modules access energy routing port, control modules realize the more of energy by dc bus
To flowing.
During the router first port connection AC network, energy router is operated under grid-connect mode, now diesel oil
Machine generator does not access dc bus, and only when AC network failure, energy router is under island mode and photovoltaic cell
When the sum total for the power that the general power and battery sent can provide can not meet electricity consumption total load, diesel-driven generator access is straight
Flow bus；
It is divided into two kinds of situations again under grid-connect mode：
1) photovoltaic cell sends out power enough to provide energy with electric loading, if power has residue, energy router
By remaining energy stores in battery, if also surplus, feeds back to AC network；
2) photovoltaic cell sends out underpower to be energized with electric loading, and battery can not also supplement difference power, then hand over
Power network is flowed to DC bus powered, and energy is sent to and uses electric loading.
As shown in figure 3, the workflow under grid-connect mode is：
By data acquisition, control chip carries out matching with DC bus-bar voltage to the voltage of router first port and sentenced
It is disconnected；As satisfaction access dc bus condition Udcin=Udc-busWhen, control chip sends control letter to port switch drive circuit
Number so that router first port switch closure, into grid-connect mode；Control chip is to router second port, router
Three ports, the voltage of router fifth port and DC bus-bar voltage carry out matching judgment；When satisfaction accesses dc bus condition
Udcin=Udc-busWhen, control chip sends control signal to port switch drive circuit so that routed port switch closure, will
Photovoltaic cell, battery and household AC electric loading access dc bus, are gathered each by port sensor acquisition process circuit
Voltage, the current signal of routed port, control chip send out general power P to the photovoltaic cell for accessing dc buspvWith household electric
Total load PLPower calculation is carried out, then compares PpvWith family expenses electric loading PLSize, work as PL≦PpvWhen, photovoltaic cell is to electricity consumption
Load energy supply；Meanwhile if there is the energy of surplus, charged to battery, continue to detect the router that photovoltaic cell is accessed
Whether the power output of Two-port netwerk also has surplus, if still there is surplus, dump energy feedback is returned by router first port
It is fed to AC network.Work as PL＞ PpvWhen, the energy storage P for the battery that detection router the 3rd port is connect firstbatIt can mend enough
Power shortage is filled, if Pbat≥|PL-Ppv|, then it can supplement, remaining energy vacancy is supplemented to electric loading；If Pbat＜ | PL-
Ppv|, then it can not supplement, then ask for energy to exchange microgrid and carry out supplemental capacity vacancy, exchange microgrid passes through router first port
Energized to family expenses electric loading.
During the router first port connection AC network failure, AC network does not access energy router, energy road
It is operated in by device under island mode.
As shown in figure 4, the workflow under island mode is：
By data acquisition, control chip is to router second port, the port of router the 3rd, router fifth port
Voltage carries out matching judgment with DC bus-bar voltage；As satisfaction access dc bus condition Udcin=UDuring dc-bus, control chip to
Port switch drive circuit sends control signal so that routed port switch closure, by photovoltaic cell, battery and household AC
Electric loading accesses dc bus, and voltage, the current signal of each routed port, control are gathered by port sensor acquisition process circuit
Coremaking piece sends out general power P to the photovoltaic cell for accessing dc buspvWith household electric total load PLPower calculation is carried out, is then compared
Compared with PpvWith family expenses electric loading PL size, work as PLDuring≤Ppv, photovoltaic cell energizes to electric loading；Meanwhile if there is the energy of surplus
Amount, then charged to battery, work as PL＞ PpvWhen, the energy storage P for the battery that detection router the 3rd port is connect firstbatCan
Enough supplemental capacity vacancy, if Pbat≥|PL-Ppv|, then it can supplement, remaining energy vacancy is supplemented to electric loading；If Pbat
＜ | PL-Ppv|, then battery can not be supplemented, then control chip is carried out to the voltage of the port of router the 4th with DC bus-bar voltage
Matching judgment, meet access conditions Udcin=Udc-busWhen, diesel-driven generator is connected to direct current mother by routeing the 4th mouthful of end-apparatus
Line, energy vacancy is supplied by diesel-driven generator, energized to domestic loads.
Claims (6)
1. a kind of household energy router, including dc bus, router first port~router fifth port, control core
Piece, port sensor acquisition process circuit, dc bus sensor acquisition process circuit, port switch drive circuit and communication electricity
Road, it is characterised in that：
The dc bus is made up of positive and negative bus；Router first port~router fifth port is connected in parallel on direct current is positive and negative
On bus；Port sensor acquisition process circuit gathers and handles the voltage of port, current signal, is then transmitted to control
Chip；Dc bus sensor acquisition process circuit gathers voltage, the current signal of dc bus, is then transferred to control core
Piece；Sampled data is collected and handled by control chip sends control signal, and router the is controlled by port switch drive circuit
The closure of Single port~router fifth port middle port switch and disconnection and the working condition of converters, master control
Control chip in device processed keeps communication by communicating circuit and each routed port, and whole energy router passes through direct current mother
Line realizes the two-way flow of energy, and the two-way flow of information is realized by control chip；During AC network fault-free, pass through route
Device first port is connected on dc bus, and energy router is operated in grid-connect mode；During AC network failure, router is disconnected
3-phase power converter in first port, energy router enter island mode.
A kind of 2. household energy router according to claim 1, it is characterised in that the route first port~road
AC network, photovoltaic cell, battery, diesel-driven generator and household electric AC load are respectively connected to by device fifth port；
A three-phase AC/DC current transformer and four port switch are included inside router first port, AC network is connected to
On dc bus, wherein three port switch use AC circuit breaker, another port switch uses dc circuit breaker；Router
Photovoltaic cell is connected on dc bus comprising an isolation DC-DC circuit and two port switch inside second port, its
Middle port switch selects dc circuit breaker；A two-way Buck/Boost circuit and an end are included inside the port of router the 3rd
Battery is connected on dc bus by mouth switch, and wherein port switch selects dc circuit breaker；Inside the port of router the 4th
Diesel-driven generator is connected on dc bus comprising a Boost-PFC circuit and two port switch, one of port
Switch uses dc circuit breaker, and another port switch uses AC circuit breaker；A list is included inside router fifth port
Phase DC-AC inverter and two port switch, household electric AC load are connected on dc bus, one of port switch
Using dc circuit breaker, another port switch uses AC circuit breaker.
A kind of 3. household energy router according to claim 1, it is characterised in that the router first port~
Voltage of the router fifth port after converters convert is Udcin, DC bus-bar voltage Udc-bus, work as generating
Equipment generates electricity, AC network and energy storage device to dc bus transmit electricity when, voltage must is fulfilled for U after conversiondcin=
Udc-busNormal access leg bus could be realized；
By each router first port~router fifth port, dc bus and AC network, photovoltaic cell, diesel oil
Machine, energy storage device, there are 4 kinds with the energy flow mode between electric loading, i.e. energy flows into dc bus, energy from generating equipment
Dc bus is flowed to from energy storage device, energy flows to dc bus from AC network, and energy is flowed out to load from dc bus to be supplied
Electricity, to energy storage device charging, to AC network feedback.
A kind of 4. household energy router according to claim 1, it is characterised in that the router first port~
Router fifth port all contains controller, and its control chip is an information operation processing center, from two kinds of FPGA and ARM
Microprocessor control chip；FPGA receives port voltage, the current signal collected from port sensor Acquisition Circuit, receives straight
DC bus-bar voltage, the current signal that stream bus sensor acquisition process circuit collects, send ARM progress after being collected to
Data compare and computing, and receive the operation result that ARM is provided and produce control signal, export and give port switch drive circuit；Control
The conducting state of converters and the closure of port switch and disconnection in routed port processed, controlled in FPGA microprocessors
Interactive information stream be present between chip and ARM microprocessor control chips；Control chip is controller local by communicating circuit
Network bus CAN can realize the real time information intercommunication of each port, and whether monitor the voltage x current of each routed port in real time normal, route
Controller in device first port is master controller, its control chip can be completed by bus CAN to router second port~
The control of the sub-controller of router fifth port, realize the two-way flow of information；
Energy hole is carried out by control chip, grid-connection device, photovoltaic cell, diesel engine, energy storage device and household electric exchange negative
5 modules access energy routing port is carried, control modules realize the multidirectional flowing of energy by dc bus.
5. a kind of household energy router according to claim 1, it is characterised in that the router first port connects
When connecing AC network, energy router is operated under grid-connect mode, and now diesel generator does not access dc bus, only works as friendship
Electric network fault is flowed, energy router is in what the general power and battery that under island mode and photovoltaic cell is sent can provide
When the sum total of power can not meet electricity consumption total load, diesel-driven generator access dc bus；
It is divided into two kinds of situations under grid-connect mode, the first situation sends out power enough to provide energy with electric loading by photovoltaic cell
Amount, if power has residue, remaining energy stores in battery, if also surplus, are fed back to friendship by energy router
Flow power network；It is to be energized with electric loading that second is sent out underpower by photovoltaic cell, and battery can not also supplement difference power,
Then energy is sent to and uses electric loading to DC bus powered by AC network；
Workflow under grid-connect mode is：
By data acquisition, control chip to router second port, the port of router the 3rd, router fifth port voltage with
DC bus-bar voltage carries out matching judgment；As satisfaction access dc bus condition Udcin=Udc-busWhen, control chip is opened to port
Close drive circuit and send control signal so that routed port switch closure, by photovoltaic cell, battery and household AC electric loading
Dc bus is accessed, voltage, the current signal of each routed port, control chip are gathered by port sensor acquisition process circuit
General power P is sent out to the photovoltaic cell for accessing dc buspvWith household electric total load PLPower calculation is carried out, then compares PpvWith
Family expenses electric loading PLSize, work as PL≦PpvWhen, photovoltaic cell energizes to electric loading；Meanwhile if there is the energy of surplus, to
Battery charges, and whether the power output for continuing to detect the router second port that photovoltaic cell is accessed also has surplus, if still
There is surplus, then dump energy feedback is fed back to AC network by router first port；Work as PL＞ PpvWhen, road is detected first
The energy storage P of the battery connect by the port of device the 3rdbatCan supplemental capacity vacancy enough, if Pbat≥|PL-Ppv|, then it can mend
Fill, remaining energy vacancy is supplemented to electric loading；If Pbat＜ | PL-Ppv|, then it can not supplement, then ask for energy to exchange microgrid
Amount carrys out supplemental capacity vacancy, and exchange microgrid is energized by router first port to family expenses electric loading.
6. a kind of household energy router according to claim 1, it is characterised in that the router first port connects
When connecing AC network failure, AC network does not access energy router, and energy router is operated under island mode；Island mode
Under workflow be：
By data acquisition, control chip to router second port, the port of router the 3rd, router fifth port voltage
Matching judgment is carried out with DC bus-bar voltage；As satisfaction access dc bus condition Udcin=Udc-busWhen, control chip is to port
Switch driving circuit sends control signal so that routed port switch closure, photovoltaic cell, battery and standard household AC electrical is born
Access dc bus is carried, voltage, the current signal of each routed port are gathered by port sensor acquisition process circuit, controls core
Piece sends out general power P to the photovoltaic cell for accessing dc buspvWith household electric total load PLPower calculation is carried out, then compares Ppv
With family expenses electric loading PLSize, work as PL≦PpvWhen, photovoltaic cell energizes to electric loading；Meanwhile if there is the energy of surplus,
Charged to battery, work as PL＞ PpvWhen, the energy storage P for the battery that detection router the 3rd port is connect firstbatIt can mend enough
Power shortage is filled, if Pbat≥|PL-Ppv|, then it can supplement, remaining energy vacancy is supplemented to electric loading；If Pbat＜ | PL-
Ppv|, then battery can not supplement, then pass through data acquisition, voltage and dc bus of the control chip to the port of router the 4th
Voltage carries out matching judgment, meets access conditions Udcin=Udc-busWhen, diesel-driven generator is connected by the port of router the 4th
To dc bus, energy vacancy is supplied by diesel-driven generator, energized to domestic loads.
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| CN201711110212.5A CN107749642A (en) | 2017-11-12 | 2017-11-12 | A kind of household energy router |
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| CN109378866A (en) * | 2018-11-06 | 2019-02-22 | 国网山东省电力公司电力科学研究院 | A kind of energy router and the method for controlling alternating current-direct current mixing power distribution network energy stream |
| CN109888774A (en) * | 2019-03-04 | 2019-06-14 | 武汉大学 | A kind of Optimal Scheduling and method of Internet of Things energy router |
| CN111697586A (en) * | 2020-05-20 | 2020-09-22 | 广东电网有限责任公司 | Plug-and-play household energy router |
| CN112165509A (en) * | 2020-08-31 | 2021-01-01 | 上海交通大学 | Energy internet network architecture based on virtual energy router and design method thereof |
| CN112332533A (en) * | 2020-10-20 | 2021-02-05 | 山东中瑞电气有限公司 | Energy routing control strategy and direct current energy router |
| CN112467774A (en) * | 2021-02-03 | 2021-03-09 | 国网江西省电力有限公司电力科学研究院 | Energy storage system control method and device based on global energy efficiency optimization and SOC self-adaption |
| CN113972660A (en) * | 2021-11-16 | 2022-01-25 | 国网江苏省电力有限公司常州供电分公司 | Day-ahead scheduling method for AC/DC hybrid power distribution network |
| EP3876377A4 (en) * | 2020-01-19 | 2022-02-23 | Hengshui Power Supply Branch Of State Grid Hebe I Electric Power Co., Ltd. | Energy consumption system |
| CN114285064A (en) * | 2021-10-29 | 2022-04-05 | 新疆金风科技股份有限公司 | Energy router, energy management and control system and energy management and control method suitable for park |
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| CN113972660A (en) * | 2021-11-16 | 2022-01-25 | 国网江苏省电力有限公司常州供电分公司 | Day-ahead scheduling method for AC/DC hybrid power distribution network |
| CN113972660B (en) * | 2021-11-16 | 2024-02-06 | 国网江苏省电力有限公司常州供电分公司 | Day-ahead scheduling method of AC/DC hybrid power distribution network |
| CN115149558A (en) * | 2022-06-30 | 2022-10-04 | 上海交通大学 | High-voltage high-capacity battery energy storage power conversion system with intelligent control framework |
| CN115149558B (en) * | 2022-06-30 | 2023-11-28 | 上海交通大学 | High-voltage high-capacity battery energy storage power conversion system with intelligent control architecture |
| CN117220324A (en) * | 2023-11-08 | 2023-12-12 | 大秦数字能源技术股份有限公司 | Hybrid energy storage system and control method thereof |
| CN117220324B (en) * | 2023-11-08 | 2024-01-23 | 大秦数字能源技术股份有限公司 | Hybrid energy storage system and control method thereof |
| CN117639279A (en) * | 2024-01-25 | 2024-03-01 | 杭州闪充聚能新能源有限公司 | Control device of household energy storage system |
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