CN108767896A - A kind of control method for coordinating of light storage charging system - Google Patents
A kind of control method for coordinating of light storage charging system Download PDFInfo
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- CN108767896A CN108767896A CN201810592636.8A CN201810592636A CN108767896A CN 108767896 A CN108767896 A CN 108767896A CN 201810592636 A CN201810592636 A CN 201810592636A CN 108767896 A CN108767896 A CN 108767896A
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- 238000003860 storage Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000005611 electricity Effects 0.000 claims abstract description 63
- 238000004146 energy storage Methods 0.000 claims abstract description 61
- 238000011217 control strategy Methods 0.000 claims abstract description 24
- 235000006508 Nelumbo nucifera Nutrition 0.000 claims description 2
- 240000002853 Nelumbo nucifera Species 0.000 claims description 2
- 235000006510 Nelumbo pentapetala Nutrition 0.000 claims description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Classifications
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- H02J3/383—
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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
- H02J3/008—Circuit arrangements for ac mains or ac distribution networks involving trading of energy or energy transmission rights
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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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- 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 control method for coordinating of light storage charging system, based on the step price that peak valley is flat, using the power supply control strategy of five-part form.Electricity price paddy period, Electric Transit, energy storage and other loads are provided by power grid；The first peak period is powered using the sequence of photovoltaic-energy storage-power grid to Electric Transit and other loads；First it is flat when section, consideration the case where charge to energy storage, and the sequence of use photovoltaic-power grid is powered to Electric Transit and other loads；Second peak period was powered using the sequence of photovoltaic-energy storage-power grid to Electric Transit and other loads；Second it is flat when section, be powered to Electric Transit and other loads using the sequence of energy storage-power grid.Hereby it is achieved that the economy operation of light storage charging system.
Description
Technical field
The present invention relates to the control method for coordinating that a kind of light stores up charging system.
Background technology
In recent years, with the surge of new-energy automobile quantity, electric vehicle charging problems increasingly attract attention.Photovoltaic+
The pattern of energy storage+charging --- " light storage is filled " is integrated to be occurred being that the public electrically-charging equipment of large-scale promotion new-energy automobile plays
Positive exemplary role.
" light storage is filled " integrated charging station, one is formd by photovoltaic generation, energy storage, electrically-charging equipment and intelligent management system
A intelligence micro-capacitance sensor, according to actual motion demand from public electric wire net intelligent interaction, it can be achieved that grid-connected, two kinds of off-network is different runs
Pattern.Garden building, building roof in charging station use distributed photovoltaic power generation, are equipped with energy storage device for photovoltaic generation
Consumption and storage, storage energy operation is in the scene strategy of time-of-use tariffs, in peak period a large amount of electric vehicle access charging, energy storage
The charging price of electricity price when can meet the contradiction of distribution system off-capacity, and earn peak.
Light, which stores up, fills integrative solution, by energy stores and distributes the production of realization indigenous energy rationally and uses energy load
It is in a basic balance, can flexible interaction or independent operating be carried out with public electric wire net as needed, utilize new energy to greatest extent, alleviate
Impact of the charging pile to power grid；In terms of energy consumption, directly uses energy-storage battery to charge to the battery of electric vehicle, improve the energy
Transfer efficiency.After " light storage fills " integrated power station formation scale, can not only the intercity charging network layout of powerful support, can also be by
The technical characteristic of " light storage is filled " participates in the ancillary services such as peak load regulation network frequency modulation, and extra returns are brought for owner.In following demand
In the response of side, the V2G technical tie-ups of energy-storage battery and charging pile, it will be the utilization scene and business model of hot topic.
Chinese patent 201610939127.9 discloses a kind of light storage charge and discharge system, including photovoltaic battery panel, energy-storage units,
Charging terminal, electric vehicle charge and discharge DC/DC two-way changings module and DC cabinet；The photovoltaic battery panel passes through photovoltaic generation
DC/DC monotonic transformation modules are connect with DC cabinet；Energy-storage units in the form of direct current for storing electric energy, by filling
Electric discharge DC/DC two-way changing modules are connect with DC cabinet；Charging terminal passes through electric vehicle charge and discharge DC/DC two-way changing modules
It is connected to DC cabinet, the electric energy in system is transferred to Mobile energy storage list by charging terminal for connecting Mobile energy storage unit
Member, or the electric energy that Mobile energy storage unit stores is put into system；The patent primarily focuses on light storage charging system topological structure
Analysis, be not involved with light storage charging system economy operation.
Chinese patent 201721325306.X discloses a kind of light storage charging system of electric vehicle, including is no less than two
Riser, the bottom end of each riser is welded with column, the second power distribution cabinet, two neighboring column is equipped on one of column
Between be mounted on charging pile, top plate, and grafting between no less than two risers are welded between the top of the riser
There is horizontal axis.The light of the electric vehicle stores up charging system, telescopic mast is welded in the bottom of end pipe, by the casing and horizontal axis on ceiling top
Socket, so as to by adjust telescopic mast height, the angle of inclination of ceiling to be adjusted, so that photovoltaic panel and the sun
Light makes full use of, and the purpose of photovoltaic efficiency is improved, and due to the tilt adjustable of photovoltaic panel, to convenient to photovoltaic
Plate surface accumulated snow or sundries are cleared up, and the accumulation of photovoltaic panel surface irregularities is prevented, and improve the service life of photovoltaic panel, simultaneously
It charges relatively stable, energy-saving effect is preferable.The patent is mainly described light storage charging station design and construction, to operation side
Surface analysis is less.
Invention content
The shortcomings that overcome the prior art, the present invention propose a kind of control method for coordinating of light storage charging system.Root of the present invention
According to the peak valley ordinary telegram valence of power grid on the one hand photovoltaic generation electricity is utilized using the power supply strategy of five-part form as far as possible, reduced from electricity
The expense of net purchase electricity；On the other hand, the service life problem that need to consider energy-storage system, avoids the depth of energy-storage system from filling as far as possible
Electric discharge, to realize that light stores up the Optimum Economic operation of charging system.
The invention is realized by the following technical scheme：Based on the step price that peak valley is flat, using the power supply control of five-part form
Strategy.Electricity price paddy period, Electric Transit, energy storage and other loads are provided by power grid；The first peak period, using photovoltaic-energy storage-electricity
The sequence of net is powered to Electric Transit and other loads；First it is flat when section, consideration the case where charge to energy storage, and using light
The sequence of volt-power grid is powered to Electric Transit and other loads；The second peak period, using the sequence of photovoltaic-energy storage-power grid
It is powered to Electric Transit and other loads；Second it is flat when section, using the sequence of energy storage-power grid to Electric Transit and other negative
Lotus is powered.It is assumed that intraday electricity price, i.e., from 0 when to 24 when, experienced paddy-peak-it is flat-peak-puts down five stages, specific as follows：
(1) control strategy of electricity price paddy period
The electricity price paddy period when that is, power grid electricity price is relatively low, is powered by power grid to Electric Transit, energy storage and other loads.
(2) control strategy of electricity price first peak period
Electricity price first peak period, i.e. power grid electricity price higher first period, preferentially using photovoltaic generation to Electric Transit
It powers with other loads；When photovoltaic generation cannot meet power demands, increase energy storage for power supply；When photovoltaic generation and energy storage not
When can meet power demands, powered by power grid.When charge requirement and relatively low load, photovoltaic generation power is filled more than Electric Transit
When electricity demanding and other load power summations, photovoltaic generation charges to energy storage, if photovoltaic generation also has residue, is sold to electricity
Net.
(3) control strategy of section when electricity price first is flat
Section, i.e. first medium period of power grid electricity price when electricity price first is flat, preferentially using photovoltaic generation to Electric Transit
It powers, when photovoltaic generation cannot be satisfied power demand, is powered by power grid, if next in order to cope at this time with other loads
Energy storage needs to charge when peak, then is also powered by power grid；If power demand at this time is relatively low, photovoltaic generation power is needed more than electricity consumption
It asks, then photovoltaic generation charges to energy storage, if photovoltaic generation still has residue, is sold to power grid；
(4) control strategy of electricity price the second peak period
Electricity price the second peak period, i.e. power grid electricity price higher second period, preferentially using photovoltaic generation to Electric Transit
Power with other loads, when photovoltaic generation cannot meet power demands, using energy storage for power supply, when photovoltaic generation and energy storage not
When can meet power demands, then powered by power grid；When Electric Transit charge requirement and relatively low load, photovoltaic generation power is more than
The sum of Electric Transit and other load powers, then photovoltaic generation give energy storage charging, if there is residue, be then sold to power grid.
(5) control strategy of section when electricity price second is flat
Section when electricity price second is flat, i.e. second medium period of power grid electricity price, due to entering night, photovoltaic is no longer sent out
Electricity is preferentially powered by energy storage to Electric Transit and other loads；When energy storage cannot meet power demands, powered by power grid.
Description of the drawings
Fig. 1 is electricity price paddy period control strategy figure；
Fig. 2 is electricity price first peak period control strategy figure；
Fig. 3 is section control strategy figure when electricity price first is flat；
Fig. 4 is the second peak of electricity price period control strategy figure；
Fig. 5 is section control strategy figure when electricity price second is flat；
Fig. 6 is the power graph of charging pile and other loads；
Fig. 7 be photovoltaic, energy storage and power grid power graph.
Specific implementation mode
Below in conjunction with figure, the invention will be further described with specific implementation mode.
The present invention is based on the step prices that peak valley is flat, using the power supply control strategy of five-part form.Electricity price paddy period, electronic public affairs
It hands over, energy storage and other loads are provided by power grid；The first peak period, using the sequence of photovoltaic-energy storage-power grid to Electric Transit and its
Its load is powered；First it is flat when section, consideration the case where charge to energy storage, and using the sequence of photovoltaic-power grid to electronic public affairs
It hands over and other loads is powered；The second peak period, using the sequence of photovoltaic-energy storage-power grid to Electric Transit and other loads
It is powered；Second it is flat when section, powered to Electric Transit and other loads using the sequence of energy storage-power grid.
The embodiment of the present invention is as follows：
The peak valley ordinary telegram valence in certain city, including two kinds of the charging electricity price of Electric Transit and power grid electricity price, as shown in table 1.
The peak valley ordinary telegram valence in 1 certain city of table
The light storage charging system configuration in the city is as follows：7 300kW mono- drag ten charging piles, mating 70 parking stalls；Energy storage system
System capacity is 0.5MW/2MWh, and photovoltaic installed capacity is 300kW.Paddy night, trickle charge period is equipped with 200kWh's according to each car
Capacity, using depth by 70% estimation, while in view of other influence factors are multiplied by with certain coefficient；Make full use of the paddy period
It charges to each unit.Daytime carries out fast charge, and single vehicle charge requirement is about 40~50kWh, and the daily working time mainly collects
In in early 8 points to 9 points of evening totally 13 hours.
Fig. 1 is the control strategy figure of electricity price paddy period.The electricity price paddy period is by power grid to Electric Transit, energy storage and other loads
Power supply.
Fig. 2 is electricity price first peak period control strategy figure.The electricity price first peak period preferentially uses photovoltaic generation to electronic public affairs
It hands over and other loads is powered；When photovoltaic generation cannot meet power demands, increase energy storage for power supply；When photovoltaic generation and energy storage are equal
When cannot meet power demands, powered by power grid.When charge requirement and relatively low load, photovoltaic generation power is more than Electric Transit
When charge requirement and other load power summations, photovoltaic generation charges to energy storage, if there is residue, is sold to power grid.
Fig. 3 is section control strategy figure when electricity price first is flat.Section preferentially gives electronic public affairs using photovoltaic generation when electricity price first is flat
It hands over and the power supply of other loads, when photovoltaic generation cannot be satisfied power demand, is powered by power grid, if at this time in order to cope with
Energy storage, which need to generate electricity, when next peak to charge, then also provided by power grid；If power demand at this time is relatively low, photovoltaic generation power
More than power demand, then photovoltaic gives energy storage charging, if photovoltaic generation still has residue, is sold to power grid.
Fig. 4 is the second peak of electricity price period control strategy figure.Electricity price the second peak period preferentially uses photovoltaic generation to electronic public affairs
It hands over and other loads is powered, when photovoltaic generation cannot meet power demands, using energy storage for power supply, when photovoltaic generation and energy storage are equal
When cannot meet power demands, then powered by power grid；When Electric Transit charge requirement and relatively low load, photovoltaic generation power is big
In the sum of Electric Transit and other load powers, then photovoltaic generation gives energy storage charging, if there is residue, is then sold to power grid.
Fig. 5 is section control strategy figure when electricity price second is flat.Section when electricity price second is flat, due to entering night, photovoltaic is no longer
Power generation is preferentially powered by energy storage to Electric Transit and other loads；When energy storage cannot meet power demands, powered by power grid.
As shown in Figure 6 and Figure 7, according to the peak valley ordinary telegram valence in certain city, then according in the one of local Electric Transit day
The output situation of charge power, other load powers and photovoltaic then may be used using five-part form control strategy proposed by the invention
Energy storage power is obtained with optimization and takes electricity from power grid.Thus power is filled in the light storage obtained has preferably performance driving economy.
In Fig. 2-Fig. 5, PPVFor photovoltaic power, PesFor energy storage power, PloadFor load power, PbusIt charges for Electric Transit
Power, PgGrid power, SOC are energy storage charge state, SOCminFor energy storage charge state minimum value, SOCmaxFor the charged shape of energy storage
State maximum value.
Claims (6)
1. a kind of control method for coordinating of light storage charging system, which is characterized in that the control method for coordinating of the light storage charging system
Based on the step price that peak valley is flat, using the power supply control strategy of five-part form；Electricity price paddy period, Electric Transit, energy storage and other
Load is provided by power grid；The first peak period is powered using the sequence of photovoltaic-energy storage-power grid to Electric Transit and other loads；The
One it is flat when section, consideration the case where charge to energy storage, and using the sequence of photovoltaic-power grid to Electric Transit and the power supply of other loads；
Second peak period was powered using the sequence of photovoltaic-energy storage-power grid to Electric Transit and other loads；Second it is flat when section, using storage
The sequence of energy-power grid is powered to Electric Transit and other loads.Hereby it is achieved that the economy operation of light storage charging system.
2. the control method for coordinating of light storage charging system as described in claim 1, which is characterized in that the electricity price paddy period
Control strategy is as follows：
The electricity price paddy period when that is, power grid electricity price is relatively low, is powered by power grid to Electric Transit, energy storage and other loads.
3. the control method for coordinating of light as described in claim 1 storage charging system, which is characterized in that when the described electricity price first peak
The control strategy of section is as follows：
Electricity price first peak period, i.e. power grid electricity price high first period, preferentially using photovoltaic generation to Electric Transit and other
Load is powered；When photovoltaic generation cannot meet power demands, increase energy storage for power supply；When photovoltaic generation and energy storage cannot meet
When power demands, powered by power grid.When charge requirement and relatively low load, photovoltaic generation power is more than Electric Transit charge requirement
When with other load power summations, photovoltaic generation charges to energy storage, if there is residue, is sold to power grid.
4. the control method for coordinating of light storage charging system as described in claim 1, which is characterized in that when the electricity price first is flat
The control strategy of section is as follows：
Section when electricity price first is flat, i.e. first medium period of power grid electricity price, preferentially using photovoltaic to Electric Transit and other negative
Lotus is powered, and when photovoltaic generation cannot be satisfied power demand, is powered by power grid；If energy storage when at this time in order to cope with next peak
It needs to charge, is then also provided by power grid；If power demand at this time is low, photovoltaic generation power is more than power demand, then photovoltaic
It charges to energy storage, if photovoltaic generation still has residue, is sold to power grid.
5. the control method for coordinating of light as described in claim 1 storage charging system, which is characterized in that when described the second peak of electricity price
The control strategy of section is as follows：
Electricity price the second peak period, i.e. power grid electricity price high second period, preferentially using photovoltaic generation to Electric Transit and other
Load is powered, when photovoltaic generation cannot meet power demands, using energy storage for power supply, when photovoltaic generation and energy storage cannot meet
When power demands, then powered by power grid；When Electric Transit charge requirement and low load, photovoltaic generation power is more than Electric Transit
The sum of with other load powers, then photovoltaic generation gives energy storage charging, if there is residue, is then sold to power grid.
6. the control method for coordinating of light storage charging system as described in claim 1, which is characterized in that when the electricity price second is flat
The control strategy of section is as follows：
Section when electricity price second is flat, i.e. second medium period of power grid electricity price, due to entering night, photovoltaic no longer generates electricity, excellent
First powered to Electric Transit and other loads by energy storage；When energy storage cannot meet power demands, powered by power grid.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109823223A (en) * | 2019-01-23 | 2019-05-31 | 国家电网有限公司 | A kind of energy accumulation capacity configuration and system of electric automobile charging station |
| CN110601334A (en) * | 2019-08-07 | 2019-12-20 | 许继电源有限公司 | Charging station and energy dispatching management method thereof |
| CN110880759A (en) * | 2019-11-25 | 2020-03-13 | 合肥阳光新能源科技有限公司 | Energy management method and system of light storage micro-grid based on real-time electricity price mechanism |
| CN111628493A (en) * | 2020-04-17 | 2020-09-04 | 湖北中钒储能科技有限公司 | Control method of integrated energy storage power station for optical storage |
| CN114726001A (en) * | 2022-06-08 | 2022-07-08 | 始途科技(杭州)有限公司 | Micro-grid management method and system |
| CN115352311A (en) * | 2022-08-16 | 2022-11-18 | 一汽奔腾轿车有限公司 | Energy management method for optical storage charging and discharging battery changing system |
| CN118472993A (en) * | 2024-07-09 | 2024-08-09 | 宁德时代新能源科技股份有限公司 | Charging control method and device, storage and charging integrated machine system, medium and product |
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| CN106953315A (en) * | 2017-01-17 | 2017-07-14 | 无锡协鑫分布式能源开发有限公司 | User side grid type light stores up integral system capacity optimization software algorithm |
| CN107359635A (en) * | 2017-08-14 | 2017-11-17 | 国网天津市电力公司 | A kind of family's electric energy management system and method based on power system peak interval of time |
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| US20120316690A1 (en) * | 2010-03-31 | 2012-12-13 | Byd Company Limited | Home energy control system and controlling method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109823223A (en) * | 2019-01-23 | 2019-05-31 | 国家电网有限公司 | A kind of energy accumulation capacity configuration and system of electric automobile charging station |
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| CN110601334A (en) * | 2019-08-07 | 2019-12-20 | 许继电源有限公司 | Charging station and energy dispatching management method thereof |
| CN110601334B (en) * | 2019-08-07 | 2021-11-05 | 许继电源有限公司 | Charging station and energy dispatching management method thereof |
| CN110880759A (en) * | 2019-11-25 | 2020-03-13 | 合肥阳光新能源科技有限公司 | Energy management method and system of light storage micro-grid based on real-time electricity price mechanism |
| CN111628493A (en) * | 2020-04-17 | 2020-09-04 | 湖北中钒储能科技有限公司 | Control method of integrated energy storage power station for optical storage |
| CN114726001A (en) * | 2022-06-08 | 2022-07-08 | 始途科技(杭州)有限公司 | Micro-grid management method and system |
| CN115352311A (en) * | 2022-08-16 | 2022-11-18 | 一汽奔腾轿车有限公司 | Energy management method for optical storage charging and discharging battery changing system |
| CN118472993A (en) * | 2024-07-09 | 2024-08-09 | 宁德时代新能源科技股份有限公司 | Charging control method and device, storage and charging integrated machine system, medium and product |
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