CN110380507A - Substation's mixed type continuous-current plant - Google Patents
Substation's mixed type continuous-current plant Download PDFInfo
- Publication number
- CN110380507A CN110380507A CN201910669344.4A CN201910669344A CN110380507A CN 110380507 A CN110380507 A CN 110380507A CN 201910669344 A CN201910669344 A CN 201910669344A CN 110380507 A CN110380507 A CN 110380507A
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- Prior art keywords
- electrically connected
- output end
- battery group
- input terminal
- mixed type
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- 238000004891 communication Methods 0.000 claims abstract description 16
- 230000002411 adverse Effects 0.000 claims abstract description 5
- 238000012544 monitoring process Methods 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004064 dysfunction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J11/00—Circuit arrangements for providing service supply to auxiliaries of stations in which electric power is generated, distributed or converted
-
- 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
- H02J9/061—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 for DC powered loads
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
-
- 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
- H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a kind of substation mixed type continuous-current plants.Its battery group is the CB common battery group (4) composed in series by adverse current component (41) and storage assembly (42), its input terminal is electrically connected with the output end of charging unit (6), output end is electrically connected with communication power supply (2), the input terminal of charging unit (6) is electrically connected with AC power source (ABC), output end is electrically connected with the input terminal of CB common battery group (4), the output end for the unsteady flow component (7) being made of rectifier stack and DC boosting component is electrically connected with electric operation power (1), the input terminal of rectifier stack therein is electrically connected with AC power source (ABC), the input terminal of DC boosting component is electrically connected with the output end of CB common battery group (4).Its structure is simple, and O&M is convenient, is extremely easy to widely commercial applications and promotes the use of in all kinds of power plants in China, substation as control power supply.
Description
Technical field
The present invention relates to a kind of continuous-current plant, especially a kind of substation's mixed type continuous-current plant.
Background technique
In all kinds of power plants in China, substation, for control, signal, protection, automatic device and certain operations execution
The power supply of mechanism power supply, commonly referred to as control power supply, are divided into two classes: first is that DC power supply, second is that AC power source.Due to direct current
Power supply is not influenced independently of ac power power-supply system by AC power supply system accident, has safe and reliable, operation and maintenance side
Just the features such as, is widely used.
Currently, the DC power supply of substation is divided into the electric operation power of 220/110V and the communication power supply of 48V.Constitute this
The equipment of two kinds of power supplys is made of four system monitoring component, charging unit, series-connected batteries and feeding circuit parts,
Series-connected batteries therein be by monomer voltage be 2V or 12V battery through concatenating.Due to electric operation power and
Battery group in communication power supply is all independently equipped with, therefore need to be safeguarded to two sets of DC power supply devices, and O&M pipe is caused
The cost of reason is very high.There are many concatenated quantity of battery especially in electric operation power, it is easier to cell batteries occur
The unbalanced phenomenon of voltage, and then the long-term overcharge for causing battery to have, the long-term overdischarge having are serious to affect entirely
The service life of battery group.Once a certain battery therein breaks down, entire battery group, which does not just play, to be had
Effect, sometimes even need to replace whole group battery, cause unnecessary waste.It can in order to ensure direct current supply
By property, State Grid Corporation of China requires the discharge test that verification property is periodically done to battery, and the battery that voltage falls behind is changed, this
When just need battery group to be separated from DC bus to carry out.For 110kV and following substation, one group of storage is only configured mostly
Battery, battery group, which is detached from DC bus, to bring huge hidden danger to the operational safety of electric system.
To solve the problems, such as single cover in DC power supply because whole group battery after cell batteries exception can not be with load, Ren Menzuo
Some good tries and effort, such as entitled " a kind of application and research of 220kV substation parallel connection type DC power supply ", " nine
River institute journal (natural science edition) " 2018 years the 3rd phase 29-31, page 42) article.The parallel connection type direct current referred in this article
Power supply is connected in parallel by the high-voltage output end of several batteries in parallel connection modules and is formed, wherein each battery module is independently matched
Set 12V battery；In use, battery module accesses AC220V AC power source and 12V battery simultaneously, and when exchanging power loss, electricity
Pond module is by the 12V voltage increase of battery to DC220/110V.Though this parallel connection type DC power supply can be solved because of single-unit electric power storage
Pond damage the problem of causing whole group battery dysfunction, but also there is shortcomings, firstly, because battery quantity still with
Traditional scheme is the same, does not reduce, and the quantity of the battery module with intelligent monitoring and charge function needs and battery
Quantity match, since the price of single battery module is much higher than the price of single-unit battery, so that entire DC power supply
Manufacturing cost rises very much, does not have economy；Secondly, the battery module for having charging and boost function concurrently be it is a kind of need to be by 12V
The high power device of 220/110V is promoted, so large number of battery module can also be installed to group screen and bring new problem.
Summary of the invention
The technical problem to be solved in the present invention place in order to overcome the shortcomings in the prior art, it is simple to provide a kind of structure, fortune
Tie up convenient and fast substation mixed type continuous-current plant.
To solve technical problem of the invention, used technical solution is substation's mixed type continuous-current plant
Charging unit and battery group including electrical connection AC power source, electric operation power and communication power supply, especially:
Device also contains the unsteady flow component being made of rectifier stack and DC boosting component；
The battery group is CB common battery group, and the CB common battery group is composed in series by adverse current component and storage assembly,
Its input terminal is electrically connected with the output end of charging unit, output end is electrically connected with communication power supply；
The input terminal of the charging unit is electrically connected with AC power source, the input terminal of output end and CB common battery group is electrically connected
It connects；
The output end of the unsteady flow component is electrically connected with electric operation power, the input terminal of rectifier stack therein with exchange
The input terminal of power electric connection, DC boosting component is electrically connected with the output end of CB common battery group.
As substation's further improvement of mixed type continuous-current plant:
Preferably, storage assembly is made of the battery series connection of the battery or 24 section 2V of 4 section 12V.
Preferably, CB common battery group is connected in parallel setting to be more than two；It is not only easy to dilatation, is also convenient for O&M.
Preferably, charging unit is two more parallel connection settings；Conducive to dilatation and O&M.
Preferably, unsteady flow component is two more parallel connection settings；Conducive to dilatation and O&M.
Preferably, DC boosting component is DC/DC booster.
Preferably, three-phase alternating current pressure sensor is equipped in AC power source.
Preferably, the output end of three-phase alternating current pressure sensor is electrically connected with the input terminal of monitoring part；Convenient in time
Understand and show the working condition of AC power source.
Beneficial effect compared with the existing technology is:
With such a structure, the structure of device had not only been significantly simplified, but also can be easily to the battery in device
It is safeguarded and is replaced, prevented battery group disengaging DC bus to the operational safety of electric system and brought asking for huge hidden danger
Topic, also greatly reduces the production cost of device, can even more provide the communication power supply of 48V, to enable the invention to based on one
Set battery pack has just provided electric operation power and communication power supply simultaneously.This very simple structure is provided with the present invention
High cost performance makes it be extremely easy to widely commercial applications electric as control in all kinds of power plants in China, substation
It promotes the use of in source.
Detailed description of the invention
Fig. 1 is a kind of basic circuit structure schematic diagram of the invention.
Specific embodiment
Preferred embodiment of the invention is described in further detail with reference to the accompanying drawing.
Referring to Fig. 1, substation is as follows with the composition of mixed type continuous-current plant:
Battery group, 6 and of charging unit are electrically connected between AC power source ABC, electric operation power 1 and communication power supply 2
Unsteady flow component 7.Wherein,
Battery group is the CB common battery group 4 composed in series by adverse current component 41 and storage assembly 42, the CB common battery group 4
Input terminal be electrically connected with the output end of charging unit 6, output end is electrically connected with communication power supply 2；Storage assembly therein 42 is by 4
Composition is connected in series in the battery (can also be the battery of 24 section 2V) for saving 12V, and CB common battery group 4 is two groups (can also be more than two)
It is connected in parallel setting.
Charging unit 6 is one (can also be two more parallel connection settings), the input terminal and alternating current of charging unit 6
Source ABC electrical connection, output end are electrically connected with the input terminal of CB common battery group 4.
The output end for the unsteady flow component 7 being made of rectifier stack and DC boosting component is electrically connected with electric operation power 1,
The input terminal of rectifier stack therein is electrically connected with AC power source ABC, input terminal and the CB common battery group 4 of DC boosting component
Output end electrical connection；Wherein, unsteady flow component 7 is one (can also be two more parallel connection settings), and DC boosting component is
DC/DC booster.
Three-phase alternating current pressure sensor 5 is equipped on AC power source ABC, the output end of the three-phase alternating current pressure sensor 5 with
The input terminal of monitoring part 3 is electrically connected.
When installation, the voltage class being first applied to according to the present invention in electric system and required capacity is only needed to select each member
The electric parameter of device, then by three inputs contact A, B, C of AC power source ABC of the present invention respectively with the A phase of electric system, B
Phase, C be electrically connected and electric operation power 1 and communication power supply 2 and actual use in electric operation power and communication power supply
Electrical connection.
In operational process of the invention, when AC power source ABC has electricity, electric operation power 1 is by unsteady flow component 7
Rectifier stack provides the direct current of DC220/110V, and communication power supply 2 is by charging unit 6 through the adverse current component in CB common battery group 4
The direct current of 48V is supplied after 41；When AC power source ABC has a power failure, electric operation power 1 and communication power supply 2 are used in conjunction with shared
Battery pack 4, at this point, direct current of 4 one side of CB common battery group directly to 2 offer -48V of communication power supply, on one side through in unsteady flow component 7
DC boosting component to electric operation power 1 provide DC220/110V direct current.
Obviously, those skilled in the art can carry out substation of the invention with mixed type continuous-current plant various
Modification and variation is without departing from the spirit and scope of the present invention.If in this way, belonging to this to these modifications and changes of the present invention
Within the scope of invention claim and its equivalent technologies, then the present invention is also intended to include these modifications and variations.
Claims (8)
1. a kind of substation mixed type continuous-current plant, including electrical connection AC power source (ABC), electric operation power (1)
With the charging unit (6) and battery group of communication power supply (2), it is characterised in that:
Device also contains the unsteady flow component (7) being made of rectifier stack and DC boosting component；
The battery group is CB common battery group (4), and the CB common battery group (4) is by adverse current component (41) and storage assembly (42)
It composes in series, input terminal is electrically connected with the output end of charging unit (6), output end is electrically connected with communication power supply (2)；
The input terminal of the charging unit (6) is electrically connected with AC power source (ABC), the input of output end and CB common battery group (4)
End electrical connection；
The output end of the unsteady flow component (7) is electrically connected with electric operation power (1), the input terminal of rectifier stack therein and friendship
Galvanic electricity source (ABC) electrical connection, the input terminal of DC boosting component are electrically connected with the output end of CB common battery group (4).
2. substation according to claim 1 mixed type continuous-current plant, it is characterized in that storage assembly (42) is by 4 sections
Composition is connected in series in the battery of the battery of 12V or 24 section 2V.
3. substation according to claim 1 mixed type continuous-current plant, it is characterized in that CB common battery group (4) is two
Group more parallel connection setting.
4. substation according to claim 1 mixed type continuous-current plant, it is characterized in that charging unit (6) is two
More parallel connection setting.
5. substation according to claim 1 mixed type continuous-current plant, it is characterized in that unsteady flow component (7) is two
More parallel connection setting.
6. substation according to claim 1 mixed type continuous-current plant, it is characterized in that DC boosting component is DC/
DC booster.
7. substation according to claim 1 mixed type continuous-current plant, it is characterized in that being set in AC power source (ABC)
There are three-phase alternating current pressure sensor (5).
8. substation according to claim 7 mixed type continuous-current plant, it is characterized in that three-phase alternating voltage senses
The output end of device (5) is electrically connected with the input terminal of monitoring part (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910669344.4A CN110380507A (en) | 2019-07-24 | 2019-07-24 | Substation's mixed type continuous-current plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910669344.4A CN110380507A (en) | 2019-07-24 | 2019-07-24 | Substation's mixed type continuous-current plant |
Publications (1)
| Publication Number | Publication Date |
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| CN110380507A true CN110380507A (en) | 2019-10-25 |
Family
ID=68255297
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910669344.4A Pending CN110380507A (en) | 2019-07-24 | 2019-07-24 | Substation's mixed type continuous-current plant |
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| Country | Link |
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| CN (1) | CN110380507A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117154896A (en) * | 2023-10-26 | 2023-12-01 | 北京国电光宇新技术开发有限公司 | Storage battery mixed connection type integrated power supply system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2870245Y (en) * | 2006-01-16 | 2007-02-14 | 天津海飞特电源科技有限公司 | Integrated power-supply device of transformer substation |
| CN210273591U (en) * | 2019-07-24 | 2020-04-07 | 安徽新力电气设备有限责任公司 | Mixed type direct current power supply device for transformer substation |
-
2019
- 2019-07-24 CN CN201910669344.4A patent/CN110380507A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2870245Y (en) * | 2006-01-16 | 2007-02-14 | 天津海飞特电源科技有限公司 | Integrated power-supply device of transformer substation |
| CN210273591U (en) * | 2019-07-24 | 2020-04-07 | 安徽新力电气设备有限责任公司 | Mixed type direct current power supply device for transformer substation |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117154896A (en) * | 2023-10-26 | 2023-12-01 | 北京国电光宇新技术开发有限公司 | Storage battery mixed connection type integrated power supply system |
| CN117154896B (en) * | 2023-10-26 | 2024-01-23 | 北京国电光宇新技术开发有限公司 | Storage battery mixed connection type integrated power supply system |
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