CN108963958A - A kind of decompression spare power automatic switching system and starting method - Google Patents
A kind of decompression spare power automatic switching system and starting method Download PDFInfo
- Publication number
- CN108963958A CN108963958A CN201810697285.7A CN201810697285A CN108963958A CN 108963958 A CN108963958 A CN 108963958A CN 201810697285 A CN201810697285 A CN 201810697285A CN 108963958 A CN108963958 A CN 108963958A
- Authority
- CN
- China
- Prior art keywords
- opposite side
- side line
- differential protection
- protection
- backup
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0061—Details of emergency protective circuit arrangements concerning transmission of signals
- H02H1/0084—Details of emergency protective circuit arrangements concerning transmission of signals by means of pilot wires or a telephone network; watching of these wires
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/261—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations
Abstract
The invention discloses a kind of decompression spare power automatic switching system and starting methods; a kind of decompression prepared auto restart starting method; it include: backup auto-activating device, this side line road differential protection, opposite side line differential protection device and opposite side line backup protection device; opposite side line backup protection device is connect by conducting wire with opposite side line differential protection device, and opposite side line differential protection device is connect by teletransmission channel with this side line road differential protection.The starting method includes: that " female inlet wire differential protection tripping " and " female inlet wire opposite side back-up protection movement " are added in the starting logic of backup auto-activating device.The present invention starts backup auto-activating device and does not need waiting delay step by step; backup auto-activating device can be started immediately, under the premise of guaranteeing backup auto-activating device correctness after the tripping of opposite side line backup protection device; the movement speed for improving backup auto-activating device reduces the power-off time of substation.
Description
Technical field
The present invention relates to a kind of decompression spare power automatic switching system and starting methods, belong to technical field of relay protection.
Background technique
Backup auto-activating device (also known as: automatic throw-in equipment of emergency power supply) be it is a kind of improve Operation of Electric Systems reliability from
Dynamic device.When a substation or user have the power supply of two-way or more, because considering system stable problem, do not adopt generally
With the big power supply of two-way while power supply mode (protection calculates complicated, generation power inverted orientation etc. when cutting off failure), at this moment have all the way
Power supply power supply, another way power supply stand-by heat.Backup auto-activating device energy automatic put-in spair power source in the case where power supply failure,
Ensure that substation or user will not have a power failure.
Current track traffic power supply system mostly uses centralized power supply system, i.e., concentrates along rail traffic and set 2 ~ 3
Main transformer station.Each main transformer station from urban distribution network introduce 1 ~ 2 road power supply, using serial power supply mode connect 3 ~ 10 traction/
Stepdown substation.When system, which is run on, supports power supply mode, serial series of powering may be more；With big ring network power supply mode
Be widely used, single main transformer station's future then needs to connect more traction/stepdown substations.Existing rail traffic supplies
Electric system uses optical-fiber longitudinal difference protection and the mutually matched protection scheme of overcurrent protection.In the protection scheme between looped network cable
Optical-fiber longitudinal difference is as main protection, and as back-up protection, the cooperation of two kinds of protections realizes " combining after main ", reliability for overcurrent protection
Height, stability are good, therefore are widely used.
But existing voltage fault backup self activating apparatus scheme is to guarantee backup auto-activating device using set time differential delay
Do not bypass the immediate leadership movement, have the following technical problems:
(1) the backup auto-activating device delay close to source side is caused to extend with the increase of power supply series.For 5 grades or so of confession
Electric looped network, backup auto-activating device action delay reach 5 seconds.For 10 grades or more power supply looped networks, backup auto-activating device action delay is even
Reach 10 seconds or more；
(2) due to lengthening step by step from throwing action delay, when power supply direction changes, the mother for needing to switch all substations is standby certainly
Throw the definite value area of unit protection.Switch one time again again after restoring normal power supply, operations staff's heavy workload increases system
Operation risk.
Therefore existing backup auto-activating device system and starting method be unable to satisfy modern railway transportation power supply system for
The requirement of relay protection.
Summary of the invention
It is an object of the invention to overcome deficiency in the prior art, a kind of decompression spare power automatic switching system and starting side are provided
Method solves backup auto-activating device in the prior art and is unable to the technical problems such as accurate judgement fault point, waiting delay be longer.
In order to solve the above technical problems, the technical scheme adopted by the invention is that: a kind of decompression spare power automatic switching system, comprising:
Backup auto-activating device, this side line road differential protection, opposite side line differential protection device and opposite side line backup protection device；Institute
This side line road differential protection is stated to connect with backup auto-activating device；
The opposite side line backup protection device is connect by conducting wire with opposite side line differential protection device, and being used for will be " behind opposite side
Standby protection act " contact point signal reaches opposite side line differential protection device；
The opposite side line differential protection device is connect by teletransmission channel with this side line road differential protection, is used for " line
Road differential protection tripping " and/or " opposite side back-up protection movement " contact point signal reach this side line road differential protection；
Described side line road differential protection is connect with backup auto-activating device, and backup auto-activating device is filled according to this side line differential protection
Set the contact point signal starting backup auto-activating device of output.
The teletransmission channel is optical-fibre channel.
Further, the teletransmission route further includes in opposite side line differential protection device for receiving " opposite side
The teletransmission of back-up protection movement " contact point signal is opened into contact, and " right for exporting in the differential protection of this side line road
Contact is outputed in the teletransmission of side back-up protection movement " contact point signal.
The present invention also provides a kind of decompression prepared auto restarts to start method, comprising: backup auto-activating device, this side line differential protection
Device, opposite side line differential protection device and opposite side line backup protection device, opposite side line backup protection device pass through conducting wire
It is connect with opposite side line differential protection device, opposite side line differential protection device passes through teletransmission channel and this side line differential protection
Device connection, the starting method include: to add " female inlet wire differential protection tripping " and " female inlet wire opposite side back-up protection movement "
Enter in the starting logic of backup auto-activating device.
Further, prepared auto restart dress is added in " female inlet wire differential protection tripping " and " female inlet wire opposite side back-up protection movement "
The specific method is as follows in the starting logic set:
" female inlet wire differential protection tripping " and " female inlet wire opposite side back-up protection movement " is accessed in first or gate logic simultaneously；Again
Described first or the output information of gate logic, " I sections of buses without pressure " and " II sections of buses have pressure " are respectively connected to first and patrolled with door
One of logical condition in volume, as starting backup auto-activating device；
" female inlet wire differential protection tripping " and " female inlet wire opposite side back-up protection movement " is accessed in second or gate logic simultaneously；Again
Described second or the output information of gate logic, " I sections of buses have pressure " and " II sections of buses are without pressure " are respectively connected to second and patrolled with door
One of logical condition in volume, as starting backup auto-activating device.
Further, the delay definite value of the backup auto-activating device is according to minimum delay setting.
Compared with prior art, the beneficial effects obtained by the present invention are as follows being:
(1) " opposite side back-up protection movement " signal is passed through the opposite side in same opposite side switchgear by opposite side line backup protection device
Line differential protection device, optical-fibre channel are sent to this side line differential protection, do not need waiting delay step by step, can be to side line
After the tripping of road reserve protection, starts backup auto-activating device immediately, under the premise of guaranteeing backup auto-activating device correctness, improve
The movement speed of backup auto-activating device reduces the power-off time of substation；
(2) signal is directly carried out by the optical-fibre channel between opposite side line differential protection device and this side line road differential protection
Teletransmission does not need a group GOOSE net, and construction cost is low, uses convenient for marketing；
(3) action delay of throwing certainly of all substations is uniformly set as minimum delay, and it is fixed that change power supply direction does not need switching
It is worth area, and can be avoided automatic switching device of standby power supply repetitive operation, improves security of system energy；
(4) " female inlet wire differential protection tripping " and " female inlet wire opposite side back-up protection movement " is added backup auto-activating device and starts logic
In, it can use the action signal accurate judgement fault coverage of line protective devices.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of decompression spare power automatic switching system provided by the invention；
Fig. 2 is the action logic figure of existing voltage fault backup self activating apparatus；
Fig. 3 is the action logic figure of voltage fault backup self activating apparatus provided by the invention；
Fig. 4 is the accident analysis circuit diagram using decompression spare power automatic switching system provided by the invention.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.Following embodiment is only used for clearly illustrating the present invention
Technical solution, and not intended to limit the protection scope of the present invention.
As shown in Figure 1, being the structural schematic diagram of decompression spare power automatic switching system provided by the invention, comprising: backup auto-activating device is set
The opposite side switchgear that this side line road differential protection and female incoming line switch cabinet in female incoming line switch cabinet are correspondingly arranged, it is right
Opposite side line differential protection device and opposite side line backup protection device are equipped in the switchgear of side.
It is equipped with teletransmission in the line differential protection device of opposite side to open into contact, opposite side line backup protection device will by conducting wire
The access teletransmission of " opposite side back-up protection movement " contact point signal is opened into contact.
Opposite side line differential protection device is connect by teletransmission channel with this side line road differential protection, this side line road is poor
Teletransmission is equipped in dynamic protective device and outputs contact and trip protection contact, this side line road differential protection is outputed by teletransmission to be connect
" opposite side back-up protection movement " contact point signal is reached backup auto-activating device by point, by trip protection contact by " line differential protection
Tripping " reaches backup auto-activating device.
Teletransmission channel can be selected optical-fibre channel, in opposite side line differential protection device and this side line road differential protection
Contact is received equipped with optical-fibre channel information and optical-fibre channel information sends contact, for opposite side line differential protection device and this side
Information between line differential protection device mutually passes.
In decompression spare power automatic switching system provided by the invention, opposite side line backup protection device is by " opposite side back-up protection movement "
Signal is sent to this side Line Differential by the opposite side line differential protection device in same opposite side switchgear, optical-fibre channel and protects
Shield, does not need waiting delay step by step, can start immediately backup auto-activating device after the tripping of opposite side line backup protection device, protect
Under the premise of demonstrate,proving backup auto-activating device correctness, the movement speed of backup auto-activating device is improved, the power-off time of substation is reduced, answers
For technical field of rail traffic, its power supply safety performance can be improved；Directly pass through opposite side line differential protection device and this
Optical-fibre channel between the differential protection of side line road carries out signal teletransmission, does not need a group GOOSE net, and construction cost is low, is convenient for city
It promotes the use of field.
The present invention also provides a kind of decompression prepared auto restarts to start method, will " female inlet wire differential protection tripping " and " female inlet wire
In opposite side back-up protection movement " access backup auto-activating device starting logic, the action signal that can use line protective devices is accurate
Judge fault coverage.
As shown in Fig. 2, being the action logic figure of existing voltage fault backup self activating apparatus, as shown in figure 3, being mistake provided by the invention
Press the action logic figure of backup auto-activating device.It will " female inlet wire differential protection tripping " and " female inlet wire opposite side back-up protection movement " access
The specific method is as follows in backup auto-activating device starting logic:
" female inlet wire differential protection tripping " and " female inlet wire opposite side back-up protection movement " is accessed in first or gate logic simultaneously；Again
Described first or the output information of gate logic, " I sections of buses without pressure " and " II sections of buses have pressure " are respectively connected to first and patrolled with door
One of logical condition in volume, as starting backup auto-activating device；
" female inlet wire differential protection tripping " and " female inlet wire opposite side back-up protection movement " is accessed in second or gate logic simultaneously；Again
Described second or the output information of gate logic, " I sections of buses have pressure " and " II sections of buses are without pressure " are respectively connected to second and patrolled with door
One of logical condition in volume, as starting backup auto-activating device.
The delay fixed value adjusting of backup auto-activating device no longer needs waiting delay step by step, completely sets according to unified minimum delay
It is fixed.
Failure point is carried out to using the electric substation of decompression spare power automatic switching system provided by the invention combined with specific embodiments below
Analysis, as shown in figure 4, lightning symbol representing fault point.#1 electric substation 103 breakers and #2 electric substation 101 breakers it
Between route on have a ground fault.Under normal circumstances, the line differential protection device at route both ends first acts, tripping route
The breaker at both ends, and " line differential protection tripping " hard contact point signal is simultaneously emitted by backup auto-activating device.Backup auto-activating device is received
To starting backup auto-activating device after signal, and meet at the same time " bus loss of pressure where faulty line ", " section switch point
Under the premise of position ", " prepared auto restart charges successfully " three conditions, section switch is closed immediately.
If encountering line differential protection plant failure or maintenance, need to wait line backup protection device action.By
Non-electrical source is in 101 breakers of #2 electric substation, and after line failure, no fault current flows through.So #2 becomes
Electricity 101 breakers line backup protection device in overcurrent protection can't act.103 open circuits of #1 electric substation at this time
The faulty electric current of device flows through, corresponding line backup protection device action, tripping circuit breaker, and sends " opposite side standby simultaneously
Protection act " signal is transmitted to #2 electric substation backup auto-activating device by optical-fibre channel.#2 electric substation backup auto-activating device receive signal with
After start backup auto-activating device, and meet at the same time " faulty line where bus loss of pressure ", " section switch is in quartile ", " it is standby from
Throwing is charged successfully " under the premise of three conditions, section switch is closed immediately.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations
Also it should be regarded as protection scope of the present invention.
Claims (6)
1. a kind of decompression spare power automatic switching system characterized by comprising backup auto-activating device, this side line road differential protection, opposite side
Line differential protection device and opposite side line backup protection device；Described side line road differential protection and backup auto-activating device connect
It connects；
The opposite side line backup protection device is connect by conducting wire with opposite side line differential protection device, and being used for will be " behind opposite side
Standby protection act " contact point signal reaches opposite side line differential protection device；
The opposite side line differential protection device is connect by teletransmission channel with this side line road differential protection, is used for " line
Road differential protection tripping " and/or " opposite side back-up protection movement " contact point signal reach this side line road differential protection；
Described side line road differential protection is connect with backup auto-activating device, and backup auto-activating device is filled according to this side line differential protection
Set the contact point signal starting backup auto-activating device of output.
2. decompression spare power automatic switching system according to claim 1, which is characterized in that the teletransmission channel is optical-fibre channel.
3. decompression spare power automatic switching system according to claim 2, which is characterized in that the teletransmission route further includes being set to opposite side
The teletransmission for receiving " opposite side back-up protection movement " contact point signal in line differential protection device is opened into contact, and is set to this
Contact is outputed in the teletransmission for exporting " opposite side back-up protection movement " contact point signal in the differential protection of side line road.
4. a kind of decompression prepared auto restart starts method, comprising: backup auto-activating device, this side line road differential protection, opposite side route are poor
Dynamic protective device and opposite side line backup protection device, opposite side line backup protection device are protected by conducting wire and opposite side Line Differential
Protection unit connection, opposite side line differential protection device are connect by teletransmission channel with this side line road differential protection, feature
It is, the starting method includes: that " female inlet wire differential protection tripping " and " female inlet wire opposite side back-up protection movement " addition is standby
In the starting logic of automatic bus.
5. decompression prepared auto restart according to claim 4 starts method, which is characterized in that by " female inlet wire differential protection tripping "
The specific method is as follows in the starting logic of " female inlet wire opposite side back-up protection movement " addition backup auto-activating device:
" female inlet wire differential protection tripping " and " female inlet wire opposite side back-up protection movement " is accessed in first or gate logic simultaneously；Again
Described first or the output information of gate logic, " I sections of buses without pressure " and " II sections of buses have pressure " are respectively connected to first and patrolled with door
One of logical condition in volume, as starting backup auto-activating device；
" female inlet wire differential protection tripping " and " female inlet wire opposite side back-up protection movement " is accessed in second or gate logic simultaneously；Again
Described second or the output information of gate logic, " I sections of buses have pressure " and " II sections of buses are without pressure " are respectively connected to second and patrolled with door
One of logical condition in volume, as starting backup auto-activating device.
6. decompression prepared auto restart according to claim 4 starts method, which is characterized in that the delay of the backup auto-activating device is fixed
Value is according to minimum delay setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810697285.7A CN108963958B (en) | 2018-06-29 | 2018-06-29 | A kind of decompression spare power automatic switching system and starting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810697285.7A CN108963958B (en) | 2018-06-29 | 2018-06-29 | A kind of decompression spare power automatic switching system and starting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108963958A true CN108963958A (en) | 2018-12-07 |
| CN108963958B CN108963958B (en) | 2019-08-30 |
Family
ID=64484331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810697285.7A Active CN108963958B (en) | 2018-06-29 | 2018-06-29 | A kind of decompression spare power automatic switching system and starting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108963958B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102231564A (en) * | 2011-07-12 | 2011-11-02 | 南京中德保护控制系统有限公司 | Stand-by power supply automatic switch method for multi-stage series connection power supply network |
| CN202797910U (en) * | 2012-09-19 | 2013-03-13 | 深圳供电局有限公司 | Standby self-start blocking device in 10kV power distribution room of intelligent substation |
| CN103618376A (en) * | 2013-12-04 | 2014-03-05 | 国家电网公司 | Main change protection locking spare power automatic switching improving method |
| CN203632361U (en) * | 2013-12-27 | 2014-06-04 | 国家电网公司 | Logic controlling device for 110kV line automatic bus transfer equipment |
-
2018
- 2018-06-29 CN CN201810697285.7A patent/CN108963958B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102231564A (en) * | 2011-07-12 | 2011-11-02 | 南京中德保护控制系统有限公司 | Stand-by power supply automatic switch method for multi-stage series connection power supply network |
| CN202797910U (en) * | 2012-09-19 | 2013-03-13 | 深圳供电局有限公司 | Standby self-start blocking device in 10kV power distribution room of intelligent substation |
| CN103618376A (en) * | 2013-12-04 | 2014-03-05 | 国家电网公司 | Main change protection locking spare power automatic switching improving method |
| CN203632361U (en) * | 2013-12-27 | 2014-06-04 | 国家电网公司 | Logic controlling device for 110kV line automatic bus transfer equipment |
Non-Patent Citations (1)
| Title |
|---|
| 黄国武: "备用电源自动投入装置闭锁回路分析", 《江西电力》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108963958B (en) | 2019-08-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2015342634B2 (en) | Distributed protection system for power supply at sections of electrified railway propulsion system | |
| CN205283088U (en) | A direct current ground protecting device for magnetic levitation track traffic | |
| CN201026806Y (en) | System for long-range control or failure process of railway electric power through and self-closing circuit GPRS or CDMA | |
| CN108051706A (en) | Automatic throw-in equipment of emergency power supply fault recognition method and system | |
| CN104539043A (en) | Automatic-switching device system and method of standby power source | |
| CN102306931B (en) | Direct-current traction feed section region protection system and protection method | |
| CN102624088B (en) | Method for controlling fault self-recovery of power distribution switching station | |
| CN104269848A (en) | Coordination control method of series compensation control protection and relay protection | |
| CN103560585B (en) | Digitized line protection measurement and control system suitable for metro industry | |
| CN204481568U (en) | A kind of power plant is standby throws protective device | |
| CN202127283U (en) | Circuit backup power automatic switching protection device | |
| CN201789272U (en) | Relay protection circuit preventing transformer differential protection malfunction | |
| CN202797910U (en) | Standby self-start blocking device in 10kV power distribution room of intelligent substation | |
| CN108963958B (en) | A kind of decompression spare power automatic switching system and starting method | |
| CN209170039U (en) | A kind of automatic redundancy zero propagation switching system of two dc power supply | |
| CN204271745U (en) | Automatic switching device of standby power supply system | |
| CN109510192B (en) | Power distribution network and self-healing method thereof | |
| CN109842204A (en) | Stand-by heat line electricity source based on optical-fibre channel controls in-put of spare power supply method | |
| CN205450179U (en) | Failure monitoring system based on distribution network monitored control system | |
| CN201860172U (en) | Automatic looped network type distribution network based on reclosers | |
| CN109950915A (en) | Stand-by heat lines join in-put of spare power supply method based on source side optical-fibre channel | |
| CN109861225A (en) | Stand-by heat route in-put of spare power supply method based on optical-fibre channel | |
| CN110165658A (en) | Optical-fibre channel stand-by heat route in-put of spare power supply method based on main transformer control | |
| CN105449835B (en) | A kind of region spare power automatic switching method | |
| CN203261016U (en) | Traction power supply system for thyristor rectification |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |