CN106099966A - A kind of distributed power grid peak regulation distribution system - Google Patents
A kind of distributed power grid peak regulation distribution system Download PDFInfo
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- CN106099966A CN106099966A CN201610691435.4A CN201610691435A CN106099966A CN 106099966 A CN106099966 A CN 106099966A CN 201610691435 A CN201610691435 A CN 201610691435A CN 106099966 A CN106099966 A CN 106099966A
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- energy storage
- bus
- electrical network
- storage device
- station
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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
- H02J3/28—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
-
- 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
Abstract
A kind of distributed power grid peak regulation distribution system, including: distributed power source, bus, communication interaction system；Described distributed power source is connected with electrical network by bus, it is possible to provide electric energy by bus to electrical network；It is mutual that described distributed power source carries out information also by described communication interaction system and power distribution network, obtains electrical network realtime power and the information of Real-time Load；Described distributed power source includes centralized charging station, and described centralized charging station, when to described electrical network energy supply, first carries out the scheduling in charging station so that it is be only used as power supply and power to electrical network.
Description
Technical field
The present invention relates to a kind of network distribution system, especially relate to a kind of distributed power grid peak regulation distribution system.
Background technology
Distributed power generation refers to be positioned near user, small scale of installing, and utilizes the regenerative resource such as wind energy, solar energy to produce
The generator unit of electric energy.Compared with traditional extensive centralized generating, distributed power generation possesses lot of advantages.First, distribution
Formula power supply, generally proximate to user, consumes electric energy on the spot, reduces the electric energy loss in power equipment investment and transmitting procedure, preferably
Meet the need for electricity of social production and people's lives, improve the economy that system is run.
Distributed power generation have occupation of land less, the advantage such as small investment, energy-saving and environmental protection, construction period be short, along with energy-saving and emission-reduction pressure
Power increases and electric power breach expands, and it is the important directions of Future Development of Electric Power Industry that distributed power generation combines with bulk power grid.But
It is that the grid-connected electrical network instability that is easily caused of distributed power generation, the especially system such as wind-powered electricity generation, solar electrical energy generation, output is unstable
Fixed, cause electrical network day by day serious in the short of electricity phenomenon of peak load period, regulation power supply capacity deficiency has severely impacted the confession of system
Electricity quality and the economic benefit of system.
Put in a large number along with electric automobile and use, electric automobile can as Equivalent Distributed decline power supply participate in electrical network tune
Degree. the peak regulation pressure reaching to alleviate electrical network peak time with this and the utilization rate improving equipment for power transmission and distribution, thus realize electrical network
Economic reliability service.Along with the development of electric automobile access network (Vehicle to Grid.V2G) technology and electric automobile
Scale is applied, and the market environment of electric power system design and operation will change. need to consider electronic when distribution network runs
Automobile participates in the scheduling problem of system as equivalence energy storage device.When electric automobile accesses electrical network, can be with peak load shifting, moreover it is possible to make
For the stand-by power supply of emergent security, improve motility and the reliability of operation of power networks.
Existing electric automobile accesses the technology of power distribution network and is typically in units of charging station, needs energy supply at electrical network peak load
Time, except being necessarily required to the automobile of charging, the electricity of the automobile that can power is supplied to electrical network by two-way inversion system, and
The automobile that must charge then is powered by electrical network and is continued charging.Therefore, charging station when to electrical network energy supply simultaneously as power supply and
Load, also exists power supply and the behavior of charging, owing to there is DC-AC change and apart from the loss transmitted, causes electric energy
Waste.
Summary of the invention
The invention provides a kind of distributed power grid peak regulation distribution system, it is possible to when charging station is powered to electrical network peak load,
Be only used as power supply and do not produce load, thus avoid can loss.
As one aspect of the present invention, it is provided that a kind of distributed power grid peak regulation distribution system, including: distributed electrical
Source, bus, communication interaction system；Described distributed power source is connected with electrical network by bus, it is possible to carried to electrical network by bus
For electric energy；It is mutual that described distributed power source carries out information also by described communication interaction system and power distribution network, obtains electrical network real-time
Power and the information of Real-time Load；Described distributed power source includes that centralized charging station, described centralized charging station can be used
It is charged in movable distributive energy storage device, and also can be powered to described electrical network by bus；Described centralized fill
Power station also includes interior second bus of the first bus and station in station；Described movable distributive energy storage device is female by station first
Line is connected with electrical network bus；In described station the second bus and each movable distributive energy storage device respectively by the first switch,
Transformator and second switch are connected, described first switch and transformer series, described second switch and the first switch and change
Depressor is in parallel；Described centralized charging station also includes control system, when centralized charging station needs to power to electrical network, and described control
System processed proceeds as follows: (1), according to the real time status of described movable distributive energy storage device, determines that needs are charged
Movable distributive energy storage device and match with it can be used in power supply movable distributive energy storage device；(2) disconnected
The movable distributive energy storage device that is charged described in opening and can be used in the movable distributive energy storage device of power supply with
The connection of the first bus in standing；(3) the first switch of the movable distributive energy storage device being charged described in disconnection, closes institute
State the second switch of the movable distributive energy storage device being charged；(4) movable distributive can powered described in Guan Bi
The first of energy storage device switchs, the second switch of the movable distributive energy storage device can powered described in disconnection.
Preferably, described movable distributive energy storage device includes electric automobile.
Preferably, described distributed power source also includes Wind turbines, photovoltaic cell, flywheel energy storage or the energy storage electricity that draws water
Stand.
Preferably, described centralized charging station, according to the realtime power of electrical network and Real-time Load information, determines it is to utilize
Grid charging is still powered to electrical network.
Preferably, described transformator is for the input voltage that output voltage is increased to 1.15 to 1.2 times.
Preferably, in described station, the second bus passes through DC distribution.
Preferably, described movable distributive energy storage device includes input equipment, can be inputted by described input equipment
The expectation charging end time of this described movable distributive energy storage device；Described movable distributive energy storage device also includes electricity
Amount monitoring device, for monitoring the dump energy in its energy storage device；Described control system is stored up according to each movable distributive
Can the dump energy of device and expect the charging end time, determine need the movable distributive energy storage device that is charged with
And the movable distributive energy storage device that can be used in power supply matched with it.
Preferably, described control system determines the movable distributive energy storage device needing to be charged according in the following manner
And the movable distributive energy storage device that can be used in power supply matched with it: (1) is according to each movable distributive energy storage
The real time electrical quantity of device, determines that it uninterruptedly charges to the time Tci needed for quota；(2) leisurely and comfortable time Tki=Tf-is determined
Tci, wherein Tf=Te-Td, Tf represents the difference expecting charging end time Te with current time Td；(3) determine that needs are carried out
The set of the movable distributive energy storage device of charging: be ranked up by leisurely and comfortable time Tki, by Tki less than very first time threshold value
The movable distributive energy storage device of such as 15 minutes is defined as the movable distributive energy storage device needing to be charged；(4)
It is determined to the set of the movable distributive energy storage device being powered: select real time electrical quantity more than power threshold is removable
Formula distributed energy storage device, by wherein Tki more than the second time threshold packaged type distributed energy storage device of such as 45 minutes,
Set as the movable distributive energy storage device that can be powered；(5) the removable distribution being powered it is determined to
The expectation power-on time Tqi=α Tki/3 of each packaged type distributed energy storage device in the set of formula energy storage device, wherein α is
Correction factor, for revising the inefficient in power-on time and charging interval, can be determined by test, or uses a guarantor
Keep value such as 0.8；(6) set of movable distributive energy storage device needs being charged is arranged from big to small according to Tci
Row, for needing the movable distributive energy storage device being charged from the movable distributive energy storage device that can be powered
Set in select Tqi to match more than the movable distributive energy storage device that can be powered of its Tci.
Accompanying drawing explanation
Fig. 1 is the system schematic of the embodiment of the present invention.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, the most from start to finish
Same or similar label represents same or similar element or has the element of same or like function.Below with reference to attached
The embodiment that figure describes is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.And, should
Work as understanding, the feature not mutual exclusion of various embodiments described here, and can be in various combinations and transformation mistake
Journey exists.
The distributed power grid peak regulation distribution system of the embodiment of the present invention, sees Fig. 1, including electric automobile charging station 10, its
It is connected with electrical network 30 by bus B.Electrical network 30 is connected with load, for providing electric power to network load.Electrical network 30 can also set
Put other distributed power sources, such as Wind turbines, photovoltaic cell, flywheel energy storage or the energy-accumulating power station that draws water.Electric automobile charging station
10 to carry out information also by communication interaction system and electrical network 30 mutual, thus obtains electrical network 30 realtime power and Real-time Load
Information, according to realtime power and the Real-time Load information of electrical network 30, determines and utilizes electrical network 30 to charge or supply to electrical network 30
Electricity.
Electric automobile charging station 10, for being charged for sailing its interior electric automobile 11 into, arranges in station first in it
Second bus B2 in bus B1 and station.Electric automobile 11 is connected with electrical network bus B by the first bus B1 in station.In standing second
Bus B2 is DC distribution, and it passes through the first switch 12, transformator respectively with the electric automobile 11 in electric automobile charging station 10
13 and second switch 14 be connected.In standing, the second bus B2 can include two lines road, distribution and the power current of electric automobile 11
The positive level in pond and negative pole are connected.Wherein, the first switch 12 is connected with transformator 13, second switch 14 and first switch 12 and
Transformator 13 is in parallel.Wherein transformator 13 can boost for inputting voltage therein, and after boosting, input voltage is upgraded to defeated
Enter 1.15 to 1.20 times of voltage.
It is mutual that electric automobile charging station 10 carries out information by communication interaction system and electrical network 30, thus it is real to obtain electrical network 30
Time power and the information of Real-time Load, according to realtime power and the Real-time Load information of electrical network 30, determine and utilize electrical network
30 chargings are still powered to electrical network 30.When determining that electric automobile charging station 10 needs to power to electrical network, electric automobile charging station
Control system in 10 proceeds as follows: (1) according to the real time status of each electric automobile 11 of electric automobile charging station 10,
Determine the electric automobile 11 needing to be charged and the electric automobile 11 that can be used in power supply matched with it；(2) disconnecting need to
Electric automobile 11 to be charged and can be used in electric automobile 11 and the connection of the first bus B1 in station of power supply；(3)
Disconnecting and need the first of the electric automobile 11 being charged to switch 12, Guan Bi needs the second of the electric automobile 11 being charged to open
Close 14；(4) Guan Bi can be used in the first switch 12 of the electric automobile 11 powered, and disconnects the electric automobile 11 that can be used in power supply
Second switch 14.
Wherein, electric automobile 11 includes input equipment and electric quantity monitoring device, can input electronic by input equipment
The expectation charging end time of automobile 11.Electric quantity monitoring device is for monitoring the dump energy in electric automobile 11 energy storage device.
The control system of electric automobile charging station 10 is charged the end time, really according to dump energy and the expectation of each electric automobile 11
Calmly need the electric automobile 11 being charged and the electric automobile 11 that can be used in power supply matched with it.
Concrete, control system according in the following manner need the electric automobile 11 being charged and match with it can
Electric automobile 11:(1 for power supply) according to the real time electrical quantity of each electric automobile 11, determine that it uninterruptedly charges to quota institute
The time Tci needed；(2) determining leisurely and comfortable time Tki=Tf-Tci, wherein Tf=Te-Td, Tf represent the expectation charging end time
Te and the difference of current time Td；(3) set of electric automobile 11 needing to be charged is determined: carried out by leisurely and comfortable time Tki
Sequence, is defined as need to be charged removable point by Tki less than the very first time threshold value electric automobile of such as 15 minutes 11
Cloth energy storage device；(4) set of the electric automobile 11 being powered it is determined to: select real time electrical quantity more than power threshold
Electric automobile 11, power threshold can be the rated capacity of such as 80%；Wherein will be more than the second time threshold such as 45 points by Tki
The electric automobile 11 of clock, as the set of the electric automobile 11 that can be powered；(5) the electronic vapour being powered it is determined to
The expectation power-on time Tqi=α Tki/3 of each electric automobile 11 in the set of car 11, wherein α is correction factor, is used for revising confession
Electricity time and the inefficient in charging interval, α can be determined by test, or uses a conservative value such as 0.8；(6) will
Need the electric automobile 11 being charged set arranges from big to small according to Tci, for each need to be charged electronic
Automobile 11 select from the set of the electric automobile 11 that can be powered Tqi more than its Tci can be powered electronic
Automobile 11 matches.
After the electricity needing the electric automobile 11 being charged reaches its specified electric quantity, disconnect itself and the first bus in station
The connection of B2, waits that electric automobile 11 user is driven away.Power-on time at the electric automobile 11 that can be powered reaches
After it expects power-on time Tqi, disconnect itself and the connection of the first bus B2 in station, it is connected again with the first bus B1 in station
Connect.
By the technique scheme of the present invention, at charging station when to electrical network energy supply, determine that inside needs to be charged
Electric automobile, in charging station, directly give DC charging by the second bus, so that being only used as electricity during charging station energy supply
Source, reduces DC-AC change and the loss of distance transmission.
Above example is only in order to illustrate that technical scheme is not intended to limit, although with reference to above-described embodiment pair
The present invention has been described in detail, and those of ordinary skill in the field are it is understood that still can concrete to the present invention
Embodiment is modified or equivalent, and without departing from any amendment of spirit and scope of the invention or equivalent,
It all should be contained in the middle of scope of the presently claimed invention.
Claims (6)
1. a distributed power grid peak regulation distribution system, including: distributed power source, bus, communication interaction system；Described distributed
Power supply is connected with electrical network by bus, it is possible to provide electric energy by bus to electrical network；Described distributed power source is also by described
It is mutual that communication interaction system and power distribution network carry out information, obtains electrical network realtime power and the information of Real-time Load；Its feature exists
In: described distributed power source includes that centralized charging station, described centralized charging station can be used in movable distributive energy storage dress
Put and be charged, and also can be powered to described electrical network by bus；Described centralized charging station also includes the first mother in station
Second bus in line and station；Described movable distributive energy storage device is connected with electrical network bus by the first bus in station；Institute
In stating station, the second bus passes through the first switch, transformator and second switch phase respectively with each movable distributive energy storage device
Even, described first switch and transformer series, described second switch and the first switch and transformers connected in parallel；Described centralized fill
Power station also includes control system, and when centralized charging station needs to power to electrical network, described control system proceeds as follows:
(1) according to the real time status of described movable distributive energy storage device, the movable distributive energy storage needing to be charged is determined
Device and the movable distributive energy storage device that can be used in power supply matched with it；(2) disconnect described needs to be charged
Movable distributive energy storage device and can be used in movable distributive energy storage device and first bus in station of power supply
Connect；(3) disconnect the first switch of the movable distributive energy storage device that described needs are charged, close described needs and carry out
The second switch of the movable distributive energy storage device of charging；(4) the movable distributive energy storage dress can powered described in Guan Bi
First put switchs, the second switch of the movable distributive energy storage device can powered described in disconnection.
Distributed power grid peak regulation distribution system the most according to claim 1, it is characterised in that: described movable distributive stores up
Electric automobile can be included by device.
Distributed power grid peak regulation distribution system the most according to claim 2, it is characterised in that: described distributed power source also wraps
Include Wind turbines, photovoltaic cell, flywheel energy storage or the energy-accumulating power station that draws water.
Distributed distribution system the most according to claim 3, it is characterised in that: described centralized charging station is according to electrical network
Realtime power and Real-time Load information, determine and utilize grid charging still to power to electrical network.
Distributed power grid peak regulation distribution system the most according to claim 4, it is characterised in that: described transformator is for by defeated
Go out voltage and rise 1.15 to 1.2 times of a height of input voltage.
Distributed power grid peak regulation distribution system the most according to claim 5, it is characterised in that: in described station, the second bus leads to
Cross DC distribution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610691435.4A CN106099966B (en) | 2016-08-21 | 2016-08-21 | A kind of distributed power grid peak regulation distribution system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610691435.4A CN106099966B (en) | 2016-08-21 | 2016-08-21 | A kind of distributed power grid peak regulation distribution system |
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| Publication Number | Publication Date |
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| CN106099966A true CN106099966A (en) | 2016-11-09 |
| CN106099966B CN106099966B (en) | 2019-03-01 |
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| CN201610691435.4A Active CN106099966B (en) | 2016-08-21 | 2016-08-21 | A kind of distributed power grid peak regulation distribution system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101958567A (en) * | 2010-10-25 | 2011-01-26 | 东南大学 | Electromobile charging station system with energy storing device and control method thereof |
| CN201898359U (en) * | 2010-12-17 | 2011-07-13 | 上海市电力公司 | Movable energy storage system |
| WO2014206373A1 (en) * | 2013-06-28 | 2014-12-31 | Shenzhen Byd Auto R&D Company Limited | Vehicle mutual-charging system and charging connector |
| CN204391761U (en) * | 2014-12-08 | 2015-06-10 | 深圳供电局有限公司 | Direct-flow distribution system is pressed in a kind of flexibility |
| CN204669058U (en) * | 2015-06-12 | 2015-09-23 | 张洪亮 | A kind of based on wind-light storage from the/wireless charging system for electric automobile that generates electricity by way of merging two or more grid systems |
-
2016
- 2016-08-21 CN CN201610691435.4A patent/CN106099966B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101958567A (en) * | 2010-10-25 | 2011-01-26 | 东南大学 | Electromobile charging station system with energy storing device and control method thereof |
| CN201898359U (en) * | 2010-12-17 | 2011-07-13 | 上海市电力公司 | Movable energy storage system |
| WO2014206373A1 (en) * | 2013-06-28 | 2014-12-31 | Shenzhen Byd Auto R&D Company Limited | Vehicle mutual-charging system and charging connector |
| CN204391761U (en) * | 2014-12-08 | 2015-06-10 | 深圳供电局有限公司 | Direct-flow distribution system is pressed in a kind of flexibility |
| CN204669058U (en) * | 2015-06-12 | 2015-09-23 | 张洪亮 | A kind of based on wind-light storage from the/wireless charging system for electric automobile that generates electricity by way of merging two or more grid systems |
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| Publication number | Publication date |
|---|---|
| CN106099966B (en) | 2019-03-01 |
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Effective date of registration: 20181219 Address after: 528231 3rd Floor, No. 7, Southeast Second Road, Dali Town, Nanhai District, Foshan City, Guangdong Province Applicant after: Guangdong Xingdali Construction Engineering Co., Ltd. Address before: 215124 46 Xingguo Road, Guo Xiang, Wuzhong District, Suzhou, Jiangsu Applicant before: Zhao Dongxu |
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