CN108539778A - A kind of design method of the general new energy microgrid router of family - Google Patents
A kind of design method of the general new energy microgrid router of family Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000013461 design Methods 0.000 title claims abstract description 12
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 69
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 69
- 238000004146 energy storage Methods 0.000 claims abstract description 48
- 238000005516 engineering process Methods 0.000 claims abstract description 28
- 238000011160 research Methods 0.000 claims abstract description 20
- 238000005286 illumination Methods 0.000 claims abstract description 12
- 238000005457 optimization Methods 0.000 claims abstract description 11
- 241001465382 Physalis alkekengi Species 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims abstract description 4
- 230000005611 electricity Effects 0.000 claims description 31
- 230000001172 regenerating effect Effects 0.000 claims description 24
- 238000011217 control strategy Methods 0.000 claims description 15
- 238000009826 distribution Methods 0.000 claims description 11
- 238000007599 discharging Methods 0.000 claims description 9
- 230000001105 regulatory effect Effects 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 238000004134 energy conservation Methods 0.000 claims description 7
- 238000012544 monitoring process Methods 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 6
- 238000009825 accumulation Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 5
- 230000036541 health Effects 0.000 claims description 4
- 240000002853 Nelumbo nucifera Species 0.000 claims description 3
- 235000006508 Nelumbo nucifera Nutrition 0.000 claims description 3
- 235000006510 Nelumbo pentapetala Nutrition 0.000 claims description 3
- 230000004308 accommodation Effects 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 claims description 3
- 238000007418 data mining Methods 0.000 claims description 3
- 230000007812 deficiency Effects 0.000 claims description 3
- 230000001419 dependent effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 238000009472 formulation Methods 0.000 claims description 3
- 238000013486 operation strategy Methods 0.000 claims description 2
- 238000005303 weighing Methods 0.000 claims 1
- 238000007726 management method Methods 0.000 description 17
- 238000010248 power generation Methods 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000003862 health status Effects 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000013468 resource allocation Methods 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
Classifications
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- 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
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
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- H02J3/385—
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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
- 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
- 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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
A kind of design method of the general new energy microgrid router of family, for household photovoltaic Distributed-generation equipment, lithium battery energy storage battery equipment, Typical Household Appliance（The AC and DCs load such as illumination LED lamps and lanterns）The problems such as being formed by stable operation, the Collaborative Control of family's integrated-type energy resource system and the integrated system researches and develops the general new energy microgrid energy router device of family；The energy router integrated photovoltaic maximum power tracks（MPPT）Control, lithium battery management（BMS）, DC lighting load management（LED illumination drives）, microgrid off-grid grid-connected inverter control, Energy Management System（EMS）Etc. core technologies module；Optimization composition, each intermodule Collaborative Control in system so that the general new energy microgrid router of family efficiently, stable operation, become the typical home new energy solution for the community that faces the future.
Description
Technical field
The present invention relates to for solving household distributed photovoltaic power generation, lithium battery energy storage battery, Typical Household Appliance（LED lamp）
The application problems field such as access, integrated optimization control and management more particularly to a kind of general new energy microgrid router of family are set
Meter method.
Background technology
Under existing electric power structure, power grid enterprises are authorized the right of the state monopoly for purchase and marketing by law, i.e., all energy producers will
Electric power is sold to power grid, all users can only also obtain supply of electric power from power grid enterprises.The development of distributed power generation, will be tight
The system is challenged again：Distributed power generation can directly feed periphery or other qualified users, skip " power grid " in this
Between link, this will have epoch-making meaning in electric system reform.For a long time, China's power industry is to plan to pass through
Thinking of helping is leading, forms " hair transmission ＆ distribution are sold " highly integrated " concentrate, is vertical " business model;Though after multiple reform,
The management mode of power grid enterprises' state monopoly for purchase and marketing still belongs to the explicitly provided management style of law at present.In other words, electricity provider is
Power grid, user are exactly user, and the two position is not allowed to overturn, and are otherwise accused of powering in violation of rules and regulations.
Distributed power generation is then completely by the concept obfuscation of electricity provider and user.Distributed power grid will also become future
The staple market main body of power sales there will be an opportunity to purchase sale of electricity from electric power transaction platform.Power grid is also no longer traditional
Sell electric business people, but being scattered in the vacant power aggregation of the big customers of various regions, ordinarily resident's distributed energy source user one
On a platform, resource allocation to greatest extent is carried out, improves efficiency.
Under the overall background of such internet+power grid, market development today like a raging fire in sale of electricity side, with future ten thousand
The sale of electricity demand that horse gallops is adapted.Who first makes energy source router, who can seize the following first chance.Someone predicts, next
" Alibaba " will appear in energy internet arena, but must solve before this can source router this key ask
Topic.
In existing information network, router controls the conveying of data, distribution, opposite, the routing in energy network
Device also takes on the important task that dispersion cooperates with and exchanges quantity of energy, it is desirable to solve this problem, must make a basic realization certainly
The intelligent electric Force system that I regulates and controls, and this needs to integrate flexible direct current electricity technology of transmission of electricity, energy storage technology, power electronics control skill
Art and data processing technique.
Invention content
A kind of design method of the general new energy microgrid router of family, this method effectively solve household distributed photovoltaic hair
Electricity, lithium battery energy storage battery, Typical Household Appliance（LED）The application problems such as access, integrated optimization control and management, whole effective
Electricity, system is safe and reliable, becomes the typical home new energy solution for the community that faces the future.
A kind of design method of the general new energy microgrid router of family, the described method comprises the following steps：
1, the general new energy microgrid router of research family controls realization technology, and research includes photovoltaic DC-to-AC converter high efficiency switch technology
With inverter intelligent control technology, it is respectively used to improve MPPT efficiency, and realize intelligent control and the communication of photovoltaic DC-to-AC converter；
2, energy-storage lithium battery management system realizes technology built in the general new energy microgrid router of research family, and electricity is controlled with reasonable
Pond working condition keeps reliability, the high efficiency of whole group battery operation；
3, research family safety low-pressure DC lighting load access technology, including a kind of efficient scheme of electric power of research and research
Household LED lamps and lanterns active light regulating technology, achievees the purpose that energy saving；
4, the general new energy microgrid router Energy Management System designing technique of research family；Using optimize rational scheduling strategy and
Dispatching algorithm realizes the maximization of renewable energy utilization, improves efficiency of energy utilization, keeps the energy stream of system operation optimal.
The step 1 is specially：The general new energy microgrid energy router of family can integrate a plurality of different electricity of domestic consumer
Grade alternating current-direct current busbar is pressed, including photovoltaic DC busbar, energy-storage lithium battery DC bus, mains busbar, off-network
220V ac bus, safety low-pressure DC bus so that microgrid router need to complete the Collaborative Control of energy stream between more busbares, because
This energy router has multiple-working mode.
Operating mode one between daytime：When sunshine is good, solar energy is home-use to meet as main regenerative resource
Family alternating current-direct current load electric energy demand, Baseline Control Strategy are as follows：Photovoltaic converter in the general new energy microgrid energy router of family
（Unidirectional DC/DC）Module provides electric energy input with efficient electricity conversion using the MPPT controls of optimization for system；
DC lighting load current transformer（Unidirectional DC/DC）Based on current lighting demand, control lighting load side voltage is shone on demand with realizing
Bright and energy conservation object.When regenerative resource fails fully to dissolve, lithium battery energy storage battery module current transformer（Two-way DC/DC）It will adjust
Surplus electric energy is stored in lithium battery by energy storage side voltage；If regenerative resource does not dissolve fully yet, pass through inverter（DC/AC）
AC load or grid-connected is supplied after inversion.
Operating mode two between daytime：When sunshine deficiency, solar energy is aided with local power grid as main regenerative resource,
To meet domestic consumer's alternating current-direct current load electric energy demand, Baseline Control Strategy is as follows：The general new energy microgrid energy routing of family
Photovoltaic converter in device（Unidirectional DC/DC）Module is system with efficient electricity conversion using the MPPT controls of optimization
Electric energy input in part is provided；DC lighting load current transformer（Unidirectional DC/DC）Based on current lighting demand, control lighting load side
Voltage, to realize illumination and energy conservation object on demand.When regenerative resource fails fully to dissolve, lithium battery energy storage battery module current transformer
（Two-way DC/DC）Energy storage side voltage will be adjusted, surplus electric energy is stored in lithium battery；If it is negative that regenerative resource is insufficient for illumination
When lotus demand, then pass through inverter（DC/AC）After inversion, electric energy vacancy is illuminated by power grid supply portion, and be responsible for AC load
Demand.
Pattern of working at night one（Lithium battery charge state（State of Charge , SOC）>70%）：Lithium battery energy storage battery
Module provides alternating current-direct current load electric energy demand for domestic consumer, and Baseline Control Strategy is as follows：The control of lithium battery energy storage battery current transformer is straight
Flow bus rod voltage Udc inputing powers；DC lighting load current transformer is based on current brightness, controls DC load side voltage,
Realize LED luminance control.Meanwhile the general load of DC/AC accesses, electric energy is provided for it by lithium battery group, or according to current electricity
The grid-connected power transmission sale of electricity of net sale of electricity price.
Pattern of working at night two（Lithium battery SOC 20%-70%）：Lithium battery energy storage battery module is only that domestic consumer provides direct current
Lighting load electrical energy demands, AC load demand are supplied by power grid, and Baseline Control Strategy is as follows：Lithium battery energy storage battery current transformer controls
DC convergent current bus bar voltage Udc inputing powers；DC lighting load current transformer is based on current brightness, control DC load side electricity
Pressure realizes LED luminance control.The direct supply and AC load of power grid.
Pattern of working at night three（SOC<20%）：Domestic consumer's alternating current-direct current workload demand is supplied by power grid, and is lithium battery
Energy-storage system fills energy, and Baseline Control Strategy is as follows：DC/AC controls DC bus-bar voltage Udc inputing powers；Lighting load current transformer
It is controlled based on current brightness, high voltage direct current is converted into the voltage value corresponding to present intensity, realize LED luminance control；Lithium electricity
Pond energy accumulation current converter by high voltage direct current be converted to battery required voltage be continuously battery fill can, until SOC>98%.
The step 2 is specially：System, prison are managed by the energy-storage lithium battery built in the general new energy microgrid router of family
Control battery nuclear power state/health status（State of Health, SOH）, maintain the good operating status of lithium battery.Wherein wrap
It includes：The voltage of each single battery, electric current, temperature monitor in real time in lithium battery array, battery charging condition heat monitoring and alarm,
Charge and discharge balancing control, residual capacity calculating, charge-discharge electric power calculate between each battery, and accumulation charge and discharge general power, lithium battery follow
The data monitorings such as ring number and acquisition, and above-mentioned data are uploaded to central control system or upper layer Energy Management System in real time（EMS）.
After solving cell array in groups, existing several main problems in more battery packs：Overcharge/cross the problem of putting, excessive electricity
The excessively high problem of flow problem, temperature, short circuit or electrical leakage problems.By acquiring under charging and discharging state in real time, the end of each battery cell
Voltage and temperature, charging and discharging currents and cell array total voltage, calculate SOC, SOH of cell array and single battery in real time.
By charge and discharge control, balanced each charging and discharging lithium battery electric current prevents battery from overcharging or overdischarging phenomenon occurs.Pass through battery
Management system alarm fail battery is numbered and is stopped transport in time, keeps reliability, the high efficiency of whole group battery operation.
The step 3 is specially：For the general new energy microgrid energy router of family, a kind of efficient distribution side is studied
Case can efficiently reduce demand of the household LED lamps and lanterns to grid power.
Household LED lamp active light regulating technology is studied, power grid electric energy is effectively utilized, achievees the purpose that energy saving.
Further using DC bus light regulating technology is based on, since LED busbar voltages and brightness correspondence are essentially line
, it can be achieved that electrodeless gamut dims, dimming effect is fine and smooth accurate for sexual intercourse.
The step 4 is specially：The general new energy microgrid energy router Energy Management System information flow core processing of family
The core goal in research of unit is：The optimization that the maximum consumption of familial distribution of cases formula regenerative resource and home energy source utilization rate are promoted
Scheduling strategy.
It is described from energy flow angle, the energy supply source of the general new energy microgrid energy route system of family is based on solar energy
Regenerative resource and local power grid energy supply.By controlling lithium battery energy storage battery, two direct current active distribution bus（380Vdc is public
Busbar and 60Vdc illumination busbars）, active control load（The LED lamp that 60Vdc busbar voltages actively dim）And gird-connected inverter
（According to 380Vdc busbar active accommodation grid-connected currents）, using rational scheduling strategy and dispatching algorithm is optimized, realize renewable
The maximization of using energy source improves efficiency of energy utilization, keeps the energy stream of system operation optimal.
In the general new energy microgrid of family, the realization of optimal energy stream is controlled dependent on photovoltaic generating system, energy-storage system
Strategy formulation and perform effectively.Therefore, need to carry out in the general new energy microgrid energy router of family a large amount of real-time system information,
Information on load and operating state information acquisition, communication, and carry out data mining.
A kind of design method of the general new energy microgrid router of family, solves that family type user distribution formula is grid-connected to ask
Topic effectively promotes distributed photovoltaic running efficiency of system, the user side of photovoltaic parallel in system is promoted to promote, and promotes familial distribution of cases formula
Regenerative resource permeability, and adjusted by LED light voltage, reach household energy conservation purpose.
Description of the drawings
Fig. 1 is the general new energy microgrid energy router topology schematic diagram of family；
Fig. 2 one energy flow schemes of operating mode between family's general new energy microgrid energy router daytime；
Fig. 3 two energy flow schemes of operating mode between family's general new energy microgrid energy router daytime；
Fig. 4 is that the general new energy microgrid energy router of family is worked at night one energy flow scheme of pattern；
Fig. 5 is that the general new energy microgrid energy router of family is worked at night two energy flow scheme of pattern；
Fig. 6 is that the general new energy microgrid energy router of family is worked at night three energy flow scheme of pattern.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
It studies the general new energy microgrid router of family and controls realization technology.Research includes photovoltaic DC-to-AC converter high efficiency conversion skill
Art and inverter intelligent control technology are respectively used to improve MPPT efficiency, and realize the intelligent control of photovoltaic DC-to-AC converter and lead to
News.
As shown in Figure 1, the general new energy microgrid energy router of family is integrated with photovoltaic generating system, lithium battery energy storage battery system
System, it is high low pressure current transformer, inverter can integrate a plurality of different voltages grade alternating current-direct current busbar of domestic consumer, including light
DC bus, energy-storage lithium battery DC bus, mains busbar, off-network 220V ac bus, safety low-pressure DC bus are lied prostrate,
So that microgrid router need to complete the Collaborative Control of energy stream between more busbares, therefore energy router has multiple-working mode：
Operating mode one between daytime：When sunshine is good, solar energy is handed over as main regenerative resource to meet domestic consumer
DC load electrical energy demands, Baseline Control Strategy are as follows：
As shown in Fig. 2, photovoltaic converter in the general new energy microgrid energy router of family（Unidirectional DC/DC）Module is using optimization
MPPT is controlled, and with efficient electricity conversion, electric energy input is provided for system；DC lighting load current transformer（Unidirectional DC/
DC）Based on current lighting demand, control lighting load side voltage, to realize illumination and energy conservation object on demand.Work as regenerative resource
When failing fully to dissolve, lithium battery energy storage battery module current transformer（Two-way DC/DC）Energy storage side voltage will be adjusted, surplus electric energy will be stored in
Lithium battery；If regenerative resource does not dissolve fully yet, pass through inverter（DC/AC）AC load or grid-connected is supplied after inversion.
Operating mode two between daytime：When sunshine deficiency, solar energy is aided with local power grid as main regenerative resource,
To meet domestic consumer's alternating current-direct current load electric energy demand, Baseline Control Strategy is as follows：
As shown in figure 3, photovoltaic converter in the general new energy microgrid energy router of family（Unidirectional DC/DC）Module is using optimization
MPPT is controlled, and with efficient electricity conversion, part electric energy input is provided for system；DC lighting load current transformer（It is single
To DC/DC）Based on current lighting demand, control lighting load side voltage, to realize illumination and energy conservation object on demand.When renewable
When the energy fails fully to dissolve, lithium battery energy storage battery module current transformer（Two-way DC/DC）Energy storage side voltage will be adjusted, by surplus electric energy
It is stored in lithium battery；If regenerative resource is insufficient for lighting load demand, pass through inverter（DC/AC）After inversion, by
Power grid supply portion illuminates electric energy vacancy, and is responsible for AC load demand.
Pattern of working at night one（Lithium battery charge state（State of Charge , SOC）>70%）：Lithium battery energy storage battery
Module provides alternating current-direct current load electric energy demand for domestic consumer, and Baseline Control Strategy is as follows：
As shown in figure 4, lithium battery energy storage battery current transformer controls DC convergent current bus bar voltage Udc inputing powers；DC lighting load becomes
It flows device and is based on current brightness, control DC load side voltage realizes LED luminance control.Meanwhile the general load of DC/AC accesses,
Electric energy is provided for it by lithium battery group, or according to the grid-connected power transmission sale of electricity of current electric grid sale of electricity price.
Pattern of working at night two（Lithium battery SOC 20%-70%）：Lithium battery energy storage battery module is only that domestic consumer provides direct current
Lighting load electrical energy demands, AC load demand are supplied by power grid, and Baseline Control Strategy is as follows：
As shown in figure 5, lithium battery energy storage battery current transformer controls DC convergent current bus bar voltage Udc inputing powers；DC lighting load becomes
It flows device and is based on current brightness, control DC load side voltage realizes LED luminance control.The direct supply and AC load of power grid.
Pattern of working at night three（SOC<20%）：Domestic consumer's alternating current-direct current workload demand is supplied by power grid, and is lithium battery
Energy-storage system fills energy, and Baseline Control Strategy is as follows：
As shown in fig. 6, DC/AC controls DC bus-bar voltage Udc inputing powers；Lighting load current transformer is based on current brightness control
High voltage direct current is converted the voltage value corresponding to present intensity by system, realizes LED luminance control；Lithium battery energy storage battery current transformer will be high
Straightening circulation be changed to battery required voltage be continuously battery fill can, until SOC>98%.
It studies energy-storage lithium battery management system built in the general new energy microgrid router of family and realizes technology.It is controlled with reasonable
Cell operating status keeps reliability, the high efficiency of whole group battery operation.
System is managed by energy-storage lithium battery built in the general new energy microgrid router of family, monitoring battery nuclear power state/
Health status（State of Health, SOH）, maintain the good operating status of lithium battery.Including：In lithium battery array
The voltage of each single battery, electric current, temperature monitor in real time, charge and discharge between the monitoring of battery charging condition heat and alarm, each battery
Balance route, residual capacity calculate, charge-discharge electric power calculates, the data prison such as accumulation charge and discharge general power, lithium battery cycle-index
Control and acquisition, and above-mentioned data are uploaded to central control system or upper layer Energy Management System in real time（EMS）.
After solving cell array in groups, existing several main problems in more battery packs：Overcharge/cross the problem of putting, excessive electricity
The excessively high problem of flow problem, temperature, short circuit or electrical leakage problems.By acquiring under charging and discharging state in real time, the end of each battery cell
Voltage and temperature, charging and discharging currents and cell array total voltage, calculate SOC, SOH of cell array and single battery in real time.
By charge and discharge control, balanced each charging and discharging lithium battery electric current prevents battery from overcharging or overdischarging phenomenon occurs.Pass through battery
Management system alarm fail battery is numbered and is stopped transport in time, keeps reliability, the high efficiency of whole group battery operation.
Energy-storage lithium battery management system is main as follows using technology path built in the general new energy microgrid router of family：Number
Battery status information data are acquired first according to Acquisition Circuit, then data processing and analysis are carried out by electronic control unit (ECU), so
Control instruction is sent out to the related function module in system according to analysis result afterwards, and outwardly transmits information.BMS includes multiple
Processing module：Data acquisition module, SOC estimation blocks, electric control module, security management and control module, thermal management module, data are logical
Letter and display module etc..
Study family's safety low-pressure direct-current LED lighting apparatus access technology.Including studying a kind of efficient scheme of electric power
With research household LED lamp active light regulating technology, achieve the purpose that energy saving.
For the general new energy microgrid energy router of family, a kind of efficient scheme of electric power is studied, can effectively be subtracted
Few demand of the household LED lamps and lanterns to grid power.
Household LED lamp active light regulating technology is studied, power grid electric energy is effectively utilized, in summary two aspects, reaches section
The about purpose of the energy.
Using based on DC bus light regulating technology, LED busbar voltages and the substantially linear relationship of brightness correspondence can be real
Existing electrodeless gamut light modulation, dimming effect are fine and smooth accurate.
Study the general new energy microgrid router Energy Management System designing technique of family.Using the rational scheduling strategy of optimization
And dispatching algorithm, it realizes the maximization of renewable energy utilization, improve efficiency of energy utilization, make the energy stream of system operation most
It is excellent.
The core research mesh of the general new energy microgrid energy router Energy Management System information flow core processing unit of family
It is designated as：The Optimized Operation strategy that the maximum consumption of familial distribution of cases formula regenerative resource and home energy source utilization rate are promoted.
It is described from energy flow angle, the energy supply source of the general new energy microgrid energy route system of family is based on solar energy
Regenerative resource and local power grid energy supply.By controlling lithium battery energy storage battery, two direct current active distribution bus（380Vdc is public
Busbar and 60Vdc illumination busbars）, active control load（The LED lamp that 60Vdc busbar voltages actively dim）And gird-connected inverter
（According to 380Vdc busbar active accommodation grid-connected currents）, using rational scheduling strategy and dispatching algorithm is optimized, realize renewable
The maximization of using energy source improves efficiency of energy utilization, keeps the energy stream of system operation optimal.
In the general new energy microgrid of family, the realization of optimal energy stream is controlled dependent on photovoltaic generating system, energy-storage system
Strategy formulation and perform effectively.Therefore, need to carry out in the general new energy microgrid energy router of family a large amount of real-time system information,
Information on load and operating state information acquisition, communication, and carry out data mining.
Claims (5)
1. a kind of design method of the general new energy microgrid router of family, it is characterised in that：Design method includes the following steps：
1, the general new energy microgrid router of research family controls realization technology, and research includes photovoltaic DC-to-AC converter high efficiency switch technology
With inverter intelligent control technology, it is respectively used to improve MPPT efficiency, and realize intelligent control and the communication of photovoltaic DC-to-AC converter；
2, energy-storage lithium battery management system realizes technology built in the general new energy microgrid router of research family, and electricity is controlled with reasonable
Pond working condition keeps reliability, the high efficiency of whole group battery operation；
3, research family safety low-pressure DC lighting load access technology, including a kind of efficient scheme of electric power of research and research
Household LED lamps and lanterns active light regulating technology, achievees the purpose that energy saving；
4, research family general new energy microgrid router Energy Management System designing technique, using optimize rational scheduling strategy and
Dispatching algorithm realizes the maximization of renewable energy utilization, improves efficiency of energy utilization, keeps the energy stream of system operation optimal.
2. a kind of design method of the general new energy microgrid router of family according to claim 1, it is characterised in that：It is described
Step 1 is specially：The general new energy microgrid energy router of family can integrate a plurality of different voltages grade alternating current-direct current of domestic consumer
Busbar, including photovoltaic DC busbar, energy-storage lithium battery DC bus, mains busbar, off-network 220V ac bus, peace
Full low-voltage direct busbar so that microgrid router need to complete the Collaborative Control of energy stream between more busbares, therefore energy routing utensil
There are many operating modes：
(1) operating mode one between daytime：When sunshine is good, solar energy is as main regenerative resource, to meet domestic consumer
Alternating current-direct current load electric energy demand, Baseline Control Strategy are as follows：Photovoltaic converter in the general new energy microgrid energy router of family（It is single
To DC/DC）Module provides electric energy input with efficient electricity conversion using the MPPT controls of optimization for system；Direct current
Lighting load current transformer（Unidirectional DC/DC）Based on current lighting demand, control lighting load side voltage, with realize illumination on demand and
Energy conservation object；When regenerative resource fails fully to dissolve, lithium battery energy storage battery module current transformer（Two-way DC/DC）Energy storage will be adjusted
Surplus electric energy is stored in lithium battery by side voltage；If regenerative resource does not dissolve fully yet, pass through inverter（DC/AC）Inversion
AC load or grid-connected is supplied afterwards；
(2) operating mode two between daytime：When sunshine deficiency, solar energy is aided with local power grid as main regenerative resource, uses
To meet domestic consumer's alternating current-direct current load electric energy demand, Baseline Control Strategy is as follows：The general new energy microgrid energy router of family
Middle photovoltaic converter（Unidirectional DC/DC）Module, with efficient electricity conversion, is carried using the MPPT controls of optimization for system
It is inputted for part electric energy；DC lighting load current transformer（Unidirectional DC/DC）Based on current lighting demand, control lighting load side electricity
Pressure, to realize illumination and energy conservation object on demand；When regenerative resource fails fully to dissolve, lithium battery energy storage battery module current transformer
（Two-way DC/DC）Energy storage side voltage will be adjusted, surplus electric energy is stored in lithium battery；If it is negative that regenerative resource is insufficient for illumination
When lotus demand, then pass through inverter（DC/AC）After inversion, electric energy vacancy is illuminated by power grid supply portion, and be responsible for AC load
Demand；
(3) pattern of working at night one（Lithium battery charge state（State of Charge , SOC）>70%）：Lithium battery energy storage battery mould
Group provides alternating current-direct current load electric energy demand for domestic consumer, and Baseline Control Strategy is as follows：Lithium battery energy storage battery current transformer controls direct current
Bus rod voltage Udc inputing powers；DC lighting load current transformer is based on current brightness, and control DC load side voltage is real
Existing LED luminance control；Meanwhile the general load of DC/AC accesses, electric energy is provided for it by lithium battery group, or according to current electric grid
The grid-connected power transmission sale of electricity of sale of electricity price；
(4) pattern of working at night two（Lithium battery SOC 20%-70%）：Lithium battery energy storage battery module is only that domestic consumer provides direct current photograph
Bright load electric energy demand, AC load demand are supplied by power grid, and Baseline Control Strategy is as follows：The control of lithium battery energy storage battery current transformer is straight
Flow bus rod voltage Udc inputing powers；DC lighting load current transformer is based on current brightness, controls DC load side voltage,
Realize LED luminance control；The direct supply and AC load of power grid；
(5) pattern of working at night three（SOC<20%）：Domestic consumer's alternating current-direct current workload demand is supplied by power grid, and is stored up for lithium battery
Energy system fills energy, and Baseline Control Strategy is as follows：DC/AC controls DC bus-bar voltage Udc inputing powers；Lighting load current transformer base
It is controlled in current brightness, high voltage direct current is converted into the voltage value corresponding to present intensity, realize LED luminance control；Lithium battery
Energy accumulation current converter by high voltage direct current be converted to battery required voltage be continuously battery fill can, until SOC>98%.
3. a kind of design method of the general new energy microgrid router of family according to claim 1, it is characterised in that：It is described
Step 2 is specially：
(1) system, monitoring battery nuclear power state/strong are managed by the energy-storage lithium battery built in the general new energy microgrid router of family
Health state（State of Health, SOH）, the good operating status of lithium battery is maintained, including：It is each in lithium battery array
The voltage of single battery, electric current, temperature monitor in real time, and charge and discharge are equal between the monitoring of battery charging condition heat and alarm, each battery
Weighing apparatus control, residual capacity calculate, charge-discharge electric power calculates, the data monitorings such as accumulation charge and discharge general power, lithium battery cycle-index
With acquisition, and above-mentioned data are uploaded to central control system or upper layer Energy Management System in real time（EMS）；
(2) after solving cell array in groups, existing several main problems in more battery packs：Overcharge/cross the problem of putting, super-high-current
The excessively high problem of problem, temperature, short circuit or electrical leakage problems；By acquiring under charging and discharging state in real time, the end electricity of each battery cell
Pressure and temperature, charging and discharging currents and cell array total voltage, calculate SOC, SOH of cell array and single battery in real time；It is logical
Charge and discharge control is crossed, balanced each charging and discharging lithium battery electric current prevents battery from overcharging or overdischarging phenomenon occurs；Pass through cell tube
Reason system alarm fail battery is numbered and is stopped transport in time, keeps reliability, the high efficiency of whole group battery operation.
4. a kind of design method of the general new energy microgrid router of family according to claim 1, it is characterised in that：It is described
Step 3 is specially：
(1) it is directed to the general new energy microgrid energy router of family, a kind of efficient scheme of electric power is studied, can efficiently reduce
Demand of the household LED lamps and lanterns to grid power；
(2) household LED lamp active light regulating technology is studied, power grid electric energy is effectively utilized, achievees the purpose that energy saving；
(3) further using DC bus light regulating technology is based on, since LED busbar voltages and brightness correspondence are substantially linear
For relationship, it can be achieved that electrodeless gamut dims, dimming effect is fine and smooth accurate.
5. a kind of design method of the general new energy microgrid router of family according to claim 1, it is characterised in that：It is described
Step 4 is specially：
(1) the core goal in research of the general new energy microgrid energy router Energy Management System information flow core processing unit of family
For：The Optimized Operation strategy that the maximum consumption of familial distribution of cases formula regenerative resource and home energy source utilization rate are promoted；
(2) described from energy flow angle, the energy supply source of the general new energy microgrid energy route system of family is based on solar energy
Regenerative resource and local power grid energy supply；By controlling lithium battery energy storage battery, two direct current active distribution bus（The public mothers of 380Vdc
Line and 60Vdc illumination busbars）, active control load（The LED lamp that 60Vdc busbar voltages actively dim）And gird-connected inverter
（According to 380Vdc busbar active accommodation grid-connected currents）, using rational scheduling strategy and dispatching algorithm is optimized, realize renewable
The maximization of using energy source improves efficiency of energy utilization, keeps the energy stream of system operation optimal；
(3) in the general new energy microgrid of family, the realization of optimal energy stream controls plan dependent on photovoltaic generating system, energy-storage system
Slightly formulation and perform effectively；Therefore, it needs to carry out a large amount of real-time system information in the general new energy microgrid energy router of family, bear
Lotus information and operating state information acquisition, communication, and carry out data mining.
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| CN110601256A (en) * | 2019-09-04 | 2019-12-20 | 山东汇智信息科技有限责任公司 | Power flow control method |
| CN111146824A (en) * | 2019-12-25 | 2020-05-12 | 国网北京市电力公司 | Electric energy control processing method and device |
| CN111900763A (en) * | 2020-08-06 | 2020-11-06 | 中国大唐集团科学技术研究院有限公司华东电力试验研究院 | Demand side intelligent control method and system based on distributed energy |
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