CN104505849B - Access way and its method for operation of the energy storage device in 0.4KV distribution net sides - Google Patents
Access way and its method for operation of the energy storage device in 0.4KV distribution net sides Download PDFInfo
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- CN104505849B CN104505849B CN201510002368.6A CN201510002368A CN104505849B CN 104505849 B CN104505849 B CN 104505849B CN 201510002368 A CN201510002368 A CN 201510002368A CN 104505849 B CN104505849 B CN 104505849B
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- energy storage
- storage device
- breaker
- binding post
- power
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- 238000004146 energy storage Methods 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000005611 electricity Effects 0.000 claims description 8
- 230000006837 decompression Effects 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The present invention provides access way of the energy storage device in 0.4KV distribution net sides, including provides energy storage device and 0.4KV power distribution networks, and the major loop of the energy storage device includes a two way convertor, it is characterised in that：The access way also includes providing the first breaker, the second breaker and switch；One binding post of first relay connects power load；Another binding post of first relay connects the output of the two way convertor of the energy storage device；One binding post of second relay connects 0.4KV distribution net sides；Another binding post of second relay connects another binding post of first relay；One binding post of the switch connects a binding post of second relay；Another binding post of the switch connects another binding post of first relay.The present invention also provides the method for operation of the energy storage device in 0.4KV distribution net sides.Energy storage device can simultaneously realize that the guarantor of high reliability powers and seaonal load application in the present invention.
Description
Technical field
The present invention relates to energy storage device and the access way and its method for operation of power network, particularly energy storage device is in 0.4KV
The access way and its method for operation of distribution net side.
Background technology
With the development of energy storage technology, energy-storage battery, current transformer and corollary equipment it is highly integrated so that hundred multikilowatts
Energy storage device realizes densification and may move to be possibly realized, and causes energy storage device quickly square by vehicle integral type Integrated design
Just move, such energy storage device may be implemented in many-sided application of distribution net side.
Because the development of energy storage device is at home and abroad still in the starting stage, energy storage device is at present at home and abroad still in showing
Model operation phase, not yet large-scale promotion, energy storage device are even more and be less and few, and application function is single, is generally used for smoothing
New energy, and realize that the guarantor of high reliability powers and seaonal load application not yet has one to compare peace simultaneously for energy storage device
The ripe scheme of full stabilization.
The content of the invention
It is an object of the invention to provide energy storage device in the access way and its method for operation of 0.4KV power distribution networks, mesh is filled up
Application blank of the preceding energy storage device in power distribution network end.
Energy storage device 0.4KV distribution net sides access way, including provide energy storage device and 0.4KV power distribution networks, it is described
The major loop of energy storage device includes a two way convertor, it is characterised in that：The access way also includes providing the first breaker, the
Two breakers and switch；One binding post of first relay connects power load；Described the another of first relay connects
Line terminals connect the output of the two way convertor of the energy storage device；One binding post of second relay connects 0.4KV distribution
Net side；Another binding post of second relay connects another binding post of first relay；The one of the switch
Binding post connects a binding post of second relay；Another binding post of the switch connects first relay
Another binding post.
In an embodiment of the present invention, in an embodiment of the present invention, the switch is a solid-state switch.
In an alternative embodiment of the invention, the switch is a contactor.
The method of operation of the energy storage device in 0.4KV distribution net sides, it is characterised in that：If the energy storage device is applied to season
Property load, the energy storage device is grid-connected with the 0.4KV power distribution networks, first breaker and it is described switch off, described
Two breaker closings；If the energy storage device is applied to Emergency electricity, second relay disconnects, first relay
And the switch closure.
To be applied to Emergency electricity further comprising the steps of for the energy storage device in an embodiment of the present invention：When civil power just
Chang Shi, civil power is through contactor and the first breaker to customer power supply, when civil power breaks down to have a power failure, the change of the energy storage device
Stream device in the disconnection switch of after judging civil power decompression, energy-accumulating power station side decompression, issuing orders, from the energy storage device to
Family powers, and the Mobile energy storage power station is in off-grid operation pattern；When civil power recovers normal power transmission by repairing, the change
Stream device is by after judgement, close command being assigned to the switch, and the energy storage device is again grid-connected with power network.
The technical solution adopted by the present invention has the advantage that compared with prior art：Now the access way of energy storage device exists
When different application place is applied, without additional or transformation, only power supply and customer charge need to be accessed existing grid entry point, made
With simple and convenient, Automatic Control mode, the application in seaonal load side and Emergency electricity is met.
Brief description of the drawings
Fig. 1 is energy storage device access point design figure.
Fig. 2 is the wiring diagram of access point method of operation when energy storage device is incorporated into the power networks.
Fig. 3 applies the wiring diagram of the access point method of operation in Emergency electricity for energy storage device.
Fig. 4 is the wiring diagram of access point method of operation when energy storage device operates in off-network pattern.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and detailed description.
Access point scheme of the present invention, as shown in Figure 1：Binding post 1 is electrically accessed for city；Binding post 2 is used for emergent guarantor
Power supply customer charge is protected during power supply to offer to access；Binding post 3 is accessed for energy storage device.Breaker 1 is control customer charge
Point and it is disconnected；Solid-state switch/contactor, is controlled by the current transformer of energy storage device, is capable of achieving and off-grid rapid translating；Breaker
2 is the manual function added to ensure customer charge continued power, switch during normal operation when contactor occurs abnormal
It is off.
Connected mode of the invention is：One binding post of relay 1 connects power load；Another terminals of relay 1
Son connects the output of the two way convertor of the energy storage device；One binding post of relay 2 connects 0.4KV distribution net sides；Relay 2
Another binding post contact relay 1 another binding post；One terminals of one binding post contact relay 2 of solid-state switch
Son；Another binding post of another binding post contact relay 1 of solid-state switch.The on off state of solid-state switch is by energy storage device
Current transformer control.
Fig. 2 is the wiring diagram of access point method of operation when energy storage device is incorporated into the power networks.Now breaker 1 is without input, place
In idle condition；Breaker 2 is in closure state, and solid-state switch is in and cut-offs state, the now charge and discharge in Mobile energy storage power station
Electric control order is assigned by current transformer completely, is capable of achieving seaonal load application, is improved the function of power supply capacity, and can be in the external world
Civil power breaks down when having a power failure, current transformer can after checkout voltage autostop, stopping falls power transmission to external power grid.
The operation control when present invention may be equally applicable to Emergency electricity.Now the mode of connection is as shown in figure 3, be applied to
3 binding posts of operation control come into operation during anxious guarantor's power supply, and breaker 2 is in and cut-offs state, at breaker 1 and contactor
In closure state, come into operation.
When civil power is normal, civil power is through contactor and breaker 1 directly to customer power supply；
When civil power breaks down to have a power failure, current transformer is issued orders after judging civil power decompression, energy-accumulating power station side decompression
Contactor 2 is disconnected, now customer charge is powered by energy-accumulating power station battery, power station re-establishes voltage, recovered to customer charge
Normal power supply, the judgement time needed for whole process is in 600ms or so.This when of Mobile energy storage power station is in off-grid operation mould
Formula, the specific mode of connection is shown in Fig. 4.
When civil power recovers normal power transmission by repairing, current transformer by after judgement, close command being assigned to contactor,
Customer charge is restored to mains-supplied, and detailed process is shown in Fig. 3.
Energy storage device can be applied to 0.4kV distribution net sides by the mode of connection provided using the present invention, and is provided simultaneously with
Seaonal load application and Emergency Electricity Functional.And the mode of connection need to only bear power supply and user without additional or transformation
Lotus accesses existing grid entry point, easy to use, Automatic Control mode.
The solid-state switch can also be substituted with contactor in other embodiments of the invention.
Presently preferred embodiments of the present invention is the foregoing is only, it is all to ask the impartial change that the scope of the claims is done and repair according to the present invention
Decorations, should all belong to covering scope of the invention.
Claims (3)
1. the method for operation of a kind of energy storage device in 0.4KV distribution net sides, it is characterised in that：An energy storage device is provided in 0.4KV
The access way of distribution net side, including energy storage device and 0.4KV power distribution networks are provided, the major loop of the energy storage device includes a pair of
To current transformer, the access way also includes providing the first breaker, the second breaker and switch；The one of first breaker
Binding post connects power load；Another binding post of first breaker connects the defeated of the two way convertor of the energy storage device
Go out；One binding post of second breaker connects 0.4KV distribution net sides；Another binding post of second breaker meets institute
State another binding post of the first breaker；One binding post of the switch connects a binding post of second breaker；
Another binding post of the switch connects another binding post of first breaker；
If the energy storage device is applied to seaonal load, the energy storage device is grid-connected with the 0.4KV power distribution networks, described first
Breaker and it is described switch off, second breaker closing；
If the energy storage device is applied to Emergency electricity, second breaker disconnects, and first breaker and described opens
Close and close；
It is further comprising the steps of that the energy storage device is applied to Emergency electricity：When civil power is normal, civil power is through switch and first
, to customer power supply, when civil power breaks down to have a power failure, the two way convertor of the energy storage device is by judging civil power for breaker
After decompression, the disconnection switch of issuing orders, from the energy storage device to customer power supply, the energy storage device is in off-grid operation mould
Formula；When civil power recovers normal power transmission by repairing, the two way convertor is by after judgement, closure being assigned to the switch
Instruction, the energy storage device is again grid-connected with power distribution network.
2. the method for operation of the energy storage device according to claim 1 in 0.4KV distribution net sides, it is characterised in that：It is described to open
It is a solid-state switch to close.
3. the method for operation of the energy storage device according to claim 1 in 0.4KV distribution net sides, it is characterised in that：It is described to open
It is a contactor to close.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510002368.6A CN104505849B (en) | 2015-01-05 | 2015-01-05 | Access way and its method for operation of the energy storage device in 0.4KV distribution net sides |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510002368.6A CN104505849B (en) | 2015-01-05 | 2015-01-05 | Access way and its method for operation of the energy storage device in 0.4KV distribution net sides |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104505849A CN104505849A (en) | 2015-04-08 |
| CN104505849B true CN104505849B (en) | 2017-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510002368.6A Active CN104505849B (en) | 2015-01-05 | 2015-01-05 | Access way and its method for operation of the energy storage device in 0.4KV distribution net sides |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110071521B (en) | 2018-01-23 | 2021-09-03 | 台达电子企业管理（上海）有限公司 | Power distribution equipment and power distribution method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203690940U (en) * | 2013-11-28 | 2014-07-02 | 国家电网公司 | Nested-type microgrid system |
| CN103915836A (en) * | 2014-03-07 | 2014-07-09 | 华南理工大学 | Laboratorial intelligent microgrid system based on various distributed power sources |
| CN104052159A (en) * | 2014-06-25 | 2014-09-17 | 中国东方电气集团有限公司 | Energy management controller used for wind and light storage micro-grid system |
| CN203911478U (en) * | 2014-07-04 | 2014-10-29 | 中国电力工程顾问集团华北电力设计院工程有限公司 | Wind turbine generator system and seawater desalination-combined power supply and distribution structure applied to isolated power grid operation |
-
2015
- 2015-01-05 CN CN201510002368.6A patent/CN104505849B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203690940U (en) * | 2013-11-28 | 2014-07-02 | 国家电网公司 | Nested-type microgrid system |
| CN103915836A (en) * | 2014-03-07 | 2014-07-09 | 华南理工大学 | Laboratorial intelligent microgrid system based on various distributed power sources |
| CN104052159A (en) * | 2014-06-25 | 2014-09-17 | 中国东方电气集团有限公司 | Energy management controller used for wind and light storage micro-grid system |
| CN203911478U (en) * | 2014-07-04 | 2014-10-29 | 中国电力工程顾问集团华北电力设计院工程有限公司 | Wind turbine generator system and seawater desalination-combined power supply and distribution structure applied to isolated power grid operation |
Non-Patent Citations (1)
| Title |
|---|
| 储能装置在风光储联合发电***中的应用;张学庆等;《华东电力》;20101231;第38卷(第12期);第1894－1896页 * |
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| CN104505849A (en) | 2015-04-08 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20171212 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Co-patentee after: State Grid Fujian Electric Power Co., Ltd. Patentee after: State Grid Corporation of China Co-patentee after: Electric Power Research Institute, State Grid Fujian Electric Power Co., Ltd. Co-patentee after: Economic technology academy of State Grid Fujian Electric Power Co., Ltd. Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Co-patentee before: State Grid Fujian Electric Power Co., Ltd. Patentee before: State Grid Corporation of China Co-patentee before: Electric Power Research Institute, State Grid Fujian Electric Power Co., Ltd. |
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| TR01 | Transfer of patent right |