CN105305602B - The standby power system of railway digital traction substation and its haul oneself willingly into method - Google Patents
The standby power system of railway digital traction substation and its haul oneself willingly into method Download PDFInfo
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- CN105305602B CN105305602B CN201510733289.2A CN201510733289A CN105305602B CN 105305602 B CN105305602 B CN 105305602B CN 201510733289 A CN201510733289 A CN 201510733289A CN 105305602 B CN105305602 B CN 105305602B
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Abstract
The invention discloses railway digital traction substation stand-by power supply and its haul oneself willingly into method, the standby power system of railway digital traction substation, including supply network, supply network includes 1# inlet wires and 2# inlet wires, 1# inlet wires include the disconnecting switch 1QS being sequentially connected in series, breaker 1QF, main transformer 1B, 2# inlet wires include the disconnecting switch 2QS being sequentially connected in series, breaker 2QF, main transformer 2B, tie point between disconnecting switch 1QS and breaker 1QF is point A, tie point between disconnecting switch 2QS and breaker 2QF is point B, point A is connected by cross-line disconnecting switch 3QS with point B；Also include hauling oneself willingly into control system, the control system of hauling oneself willingly into includes backup auto-activating device, and backup auto-activating device is connected by GOOSE nets with main transformer high-pressure side intelligent assembly, main transformer low-pressure side α phases intelligent assembly, main transformer low-pressure side β phase intelligent assemblies.
Description
Technical field
The present invention relates to railway field of power supplies, and in particular to the stand-by power supply system of electrified railway digital traction substation
Unite and its haul oneself willingly into method.
Background technology
Digital transformer substation be with the secondary device of transformer station one be digitlization object, mainly there are two parts to constitute:One is intelligence
Primary equipment can be changed includes electronic mutual inductor, intelligent switch etc.；Two is that secondary device also needs to carry out networking layering:Process
Several parts such as layer, wall, station level, they are the intelligent electrics in transformer station based on IEC61850 communication specifications
Information sharing and interoperability can be carried out between equipment, is the multiple technologies such as photoelectric technology, information technology, the network communications technology
Fusion, the characteristics of with modern substations.It may be said that Automation Technology of Digitized Transformer is most advanced in world today's power system
Power automation technology, power technology developing direction is led, while with the proposition of IEC61850 communication protocols, by intelligence
What change terminal, digital protection measuring and controlling equipment, the digitized measurement instrument, fiber optic Ethernet and IEC61850 stipulations were constituted can be with complete
Into including information gathering, transmission, treatment, output procedure, all digitized layered distribution type transformer station has been widely recognized,
Information all accomplishes that digitlization, information transmission realize that networking, traffic model reach standardization in this novel transformer substation station, makes
Various equipment and function share unified information platform.With the application of railway digital traction substation, conventional stand-by power supply
Automatic bus can not meet digitlization integrated automatic system in traction substation demand, using network GOOSE mechanism
Automatic switching device of standby power supply is imperative.
The content of the invention
It is an object of the invention to provide electrified railway digital traction substation standby power system and its haul oneself willingly into
Method, the present invention further expanded on the basis of digital protection platform backup auto-activating device Digitized transformation application,
By the communication mechanism based on network G OOSE, the standby of the electrified railway digital traction substation based on IEC61850 is realized
Use power switchover method.The realization for hauling oneself willingly into method is conducive to design, construction, debugging, the maintenance of traction substation, reduces work
Journey cost and engineering construction is simplified, further increase the automatization level of traction substation, therefore have application well
Prospect.
The present invention to achieve the above object, is realized using following technical scheme：
The standby power system of railway digital traction substation, including supply network, supply network include 1# inlet wires and
2# inlet wires, 1# inlet wires include the disconnecting switch 1QS, breaker 1QF, the main transformer 1B that are sequentially connected in series, the high pressure of main transformer 1B
Side is connected with breaker 1QF, and the low-pressure side of main transformer 1B connects α phase lines, the low pressure of main transformer 1B by breaker 3QF
Side connects β phase lines by breaker 5QF；2# inlet wires include the disconnecting switch 2QS, breaker 2QF, the main transformer that are sequentially connected in series
The high-pressure side of 2B, main transformer 2B is connected with breaker 2QF, and the low-pressure side of main transformer 2B connects α phase lines by breaker 4QF
Road, the low-pressure side of main transformer 2B connects β phase lines, the company between disconnecting switch 1QS and breaker 1QF by breaker 6QF
Contact is point A, and tie point between disconnecting switch 2QS and breaker 2QF is point B, point A pass through cross-line disconnecting switch 3QS and
Point B is connected；Also include hauling oneself willingly into control system, the control system of hauling oneself willingly into includes backup auto-activating device, and backup auto-activating device passes through
GOOSE nets are connected with main transformer high-pressure side intelligent assembly, main transformer low-pressure side α phases intelligent assembly, main transformer low-pressure side β phase intelligent assemblies；
Main transformer high-pressure side intelligent assembly includes 1# high-pressure sides intelligent assembly and 2# high-pressure sides intelligent assembly, the collection of 1# high-pressure sides intelligent assembly
The voltage x current of 1# high-side devices simultaneously controls cut-offfing for 1# high-side devices, 1# high-side devices include disconnecting switch 1QS and
Breaker 1QF, the voltage x current of cross-line disconnecting switch 3QS, 2# high-pressure sides intelligent assembly collection 2# high-side devices simultaneously control 2#
High-side devices are cut-off, and 2# high-side devices include disconnecting switch 2QS and breaker 2QF, cross-line disconnecting switch 3QS, main transformer
Low-pressure side α phases intelligent assembly gathers α phase low pressure side apparatus and controls cut-offfing for α phase low pressure side apparatus, and α phase low pressure side apparatus include
Breaker 3QF and breaker 4QF, main transformer low-pressure side β phases intelligent assembly collection β phase low pressure side apparatus simultaneously control β phase low-pressure sides to set
Standby cut-offs, and β phase low pressure side apparatus include breaker 5QF and breaker 6QF；Backup auto-activating device is by GOOSE nets and main transformer master
Protection device, main transformer backup protection device, main transformer body protection device connection, main transformer main protection as main transformer master
Protection device, realizes fast differential over current protection, biased differential protection；Main transformer backup protection device as main transformer back-up protection
Device, realizes that high-pressure side overcurrent protection, low-pressure side overcurrent protection, zero-sequencedirectional protection, low-pressure side overvoltage protection, overload are protected
Shield, o-volt protection；Main transformer body protection device realizes non-ionizing energy loss as the non-electricity protecting device of main transformer；It is described
Main transformer includes main transformer 1B and main transformer 2B.
Design principle of the invention is：Breaker in the intelligent assembly acquisition interval of electric substation's main transformer interval primary equipment
And disconnecting switch（Switch, disconnecting link）Electric substation's process-level network is sent to Deng quantity of state and with GOOSE message, it is digitized for certainly
Throw device and gather the GOOSE action messages that primary equipment information and other intelligent assemblies send from process-level network, it is right to realize
Traction substation stand-by power supply automatic switching.The method that this traction substation digitizes prepared auto restart, is passed by GOOSE communication networks
Defeated divide-shut brake order and collection signal instead of the hardwired communication mode of conventional backup auto-activating device, eliminate in institute device to opening
Close, the large amount of complex between protection device and backup auto-activating device controls cable, backup auto-activating device only needs an optical fiber to pass through process
Layer network realizes the connection with external smart component and other intelligent IED.Other GOOSE by communication process constantly from
Inspection, realizes the intelligent monitoring of secondary circuit between device, improves the reliability of control signal transmission.GOOSE（Generic
Object Oriented Substation Event）It is that it is towards the abbreviation of transformer station's general purpose event of general object
A kind of rapid message transmission mechanism in IEC61850, for transmitting the important Real time signal in the middle of Substation IED.This hair
GOOSE message transmission mechanism in bright use IEC61850 standards, electric substation is using the communication network based on IEC61850 standards
Enter row information mutually to hand over, realize data, the information sharing between system equipment；Unified communication standard and mathematical modeling is set up,
The autgmentability of system is improve, the interoperability of device is realized.In the application breakthrough conventional substation of digital transformer substation
The category of communication, the multiple information applications such as electric substation automation system protection, measurement, telemechanical are deep into by the network communications technology
In.IEC61850 standards are《Substation network and communication protocol》, it is specific to substation automation system communication system
International standard, it was formulated in 2003 by technical committee (IECTC57) of International Electrotechnical Commission the 57th.It is believed by building
Breath model, the information communication in specification station, using the technological means such as function services of object-oriented, is devoted to realizing that transformer station sets
Interoperability between standby.Compared to traditional communication protocol, IEC61850 mainly employs following core technology：1. towards right
The modeling technique of elephant.IEC61850 uses UML as the modeling language of its standard, and UML language definitions are good, powerful, easy
In expression, it is adaptable, it can support the design setting model of object-oriented, and can support to proceed by software from demand analysis
Design and develop.2. software reuse technology.Substantial amounts of multiplexing technology is incorporated in IEC61850 standards, IEC61850 is greatly improved
Total quality, it is convenient to safeguard in the future.3. Substation Configuration Language SCL.IEC61850 describes system of transformer station using SCL language
System structure, communication system configuration, intelligent electronic device configuration and parameter etc., realize different IED configuration tools, system configuration work
It is compatible between tool.4. towards the transformer substation case model GOOSE of general object.IEC61850 uses GOOSE message mechanism,
Realize the high-speed traffic between equipment.GOOSE message employs publisher/subscriber's communication structure, it is adaptable to requirement of real-time
Communication system that is high and containing much information, in actual applications, GOOSE is used for transmitting switch switching information.5. manufacture message is advised
Model MMS.MMS is the international standard message specification of the data between equipment and information transfer, has used virtual unit VMD and has reflected
The concept penetrated, also defines Abstract Common Service Interface ACSI in IEC61850 standards, particular communication service mapping SCSM this
The concept of sample.MMS is specific when using, first operated to virtual unit, then by Mapping implementation to the pipe of entity device
Reason.MMS is applied to the communication between station level and wall.
For compared to traditional electric substation's automatic closing system, traditional electric substation's automatic closing system is used
Haul oneself willingly into control system including 2 backup auto-activating devices, and this 2 backup auto-activating devices are respectively directly gathered and control 1# routes
Switch, disconnecting link with 2# routes, while 2 backup auto-activating devices need to intercourse information, so as to reach the purpose of collaborative work
The reaction rate of this mode is slow, and fault rate is high.And the present invention be based on digitlization traction substation, therefore in IEC61850 and
On the basis of GOOSE, it is possible to achieve remote digital is controlled, therefore it may only be necessary to setting a backup auto-activating device carries out logic fortune
The outside intelligent assembly of control is calculated, each switch, disconnecting link is controlled respectively by controlling intelligent assembly, so that from an information
The power supply switching of the whole automatic closing system of Sources controlling, the present invention possesses reaction speed soon, and integrated level is high, and fault rate is low
The features such as.
The present invention uses the GOOSE message transmission mechanism in IEC61850 standards, in the application breakthrough of digital transformer substation
The category of conventional substation communication, is deep into electric substation automation system protection, measurement, telemechanical etc. many by the network communications technology
In metamessage application.In this context, sampled data as substation information pith, its transmission is synchronous can be with various
Mode is realized.Wherein, the algorithm based on software has the advantages that to realize flexibly, without hardware investment.The core of EC61850 can be total
Become：1st, enter row information and build by defining common data model CDC, compliance logic node CPLN and compatible data Type C PDC
Mould.2nd, communication service is described by defining Abstract Common Service Interface ACSI.3rd, SCSM is mapped by defining particular communication service
Realize the mapping application of specific agreement.IEC 61850 and traditional IEC 60870-5-103 contrasts, be the characteristics of maximum it not
Only it is a communication protocol, but also is a standard towards electric substation automation system object.Digital transformer substation it is prominent
Go out the deep application of the digitlization that feature is embodied in facility information and transmission, particularly ethernet communication technology, be information, model
Standardization with service is provided may.IEC 61850 is exactly carried out to substation communication network and system under this background
Concrete regulation.According to logical level, IEC 61850 has carried out specification to the information flow of each layer of substation architecture system.
The stand-by power supply of the electrified railway digital traction substation of present invention design, mainly there is supply network and control
The 1# main transformers main protection of supply network processed, 2# main transformers main protection, 1# main transformer backup protection devices, the standby of 2# main transformers are protected
Protection unit, 1# main transformer bodies protection device, 2# main transformer bodies protection device, 1# main transformers high-pressure side intelligent assembly, 2# main transformer high pressures
Side intelligent assembly, 1# main transformer low-pressure side a phases intelligent assembly, 2# main transformer low-pressure sides a phases intelligent assembly and 1# main transformer low-pressure side b phase intelligence
Can component, 2# main transformer low-pressure side b phases intelligent assembly, by GOOSE nets（Process-level network）Connection.
Main transformer low-pressure side α phases intelligent assembly includes 1# main transformer low-pressure sides α phases intelligent assembly with 2# main transformer low-pressure side α phases intelligence
Component, main transformer low-pressure side β phases intelligent assembly includes 1# main transformer low-pressure sides β phases intelligent assembly and 2# main transformer low-pressure side β phase smart groups
Part, the voltage x current of 1# main transformer low-pressure side α phases intelligent assembly collection breaker 3QF simultaneously controls cut-offfing for breaker 3QF, 2# master
The voltage x current of low pressure side α phases intelligent assembly collection breaker 4QF simultaneously controls cut-offfing for breaker 4QF, 1# main transformer low-pressure sides
The voltage x current of β phases intelligent assembly collection breaker 5QF simultaneously controls cut-offfing for breaker 5QF, 2# main transformer low-pressure side β phases intelligence
The voltage x current of component collection breaker 6QF simultaneously controls cut-offfing for breaker 6QF.
On 1# inlet wires, disconnecting switch 1QS, breaker 1QF are located at the high-pressure side of main transformer 1B, breaker 3QF, open circuit
Device 5QF is located at the low-pressure side of main transformer 1B, and on 2# inlet wires, disconnecting switch 2QS, breaker 2QF are located at main transformer 2B's
High-pressure side, breaker 4QF, breaker 6QF are located at the low-pressure side of main transformer 2B, while opened using cross-line disconnecting switch 3QS cutting
1# inlet wires and 2# inlet wires are changed, normal electric substation powers there are four kinds of modes：1# inlet wire+1# main transformers, 1# inlet wire+2# main transformers, 2# inlet wires+
2# main transformers, 2# inlet wire+1# main transformers；Assuming that the breaker 1QF or/and breaker 3QF or/and breaker 5QF on 1# inlet wires occur
Failure, then backup auto-activating device control 1# main transformers high-pressure side intelligent assembly or/and 2# main transformers high-pressure side intelligent assembly closure cross-line every
Leave pass 3QS so that electric current is switched into from No. 2 lines, form 1# inlet wire+2# main transformers enters ray mode；Assuming that on 2# inlet wires
Breaker 2QF or/and breaker 4QF or/and road device 6QF break down, then backup auto-activating device control 1# main transformers high-pressure side intelligence
Component or/and 2# main transformers high-pressure side intelligent assembly closure cross-line disconnecting switch 3QS so that electric current is switched into from Line 1, is formed
2# inlet wire+1# main transformers enter ray mode；Assuming that the main transformer 1B in 1# inlet wires breaks down, main transformer 2B is protected, then
Backup auto-activating device controls 1# main transformers high-pressure side intelligent assembly or/and 2# main transformers high-pressure side intelligent assembly closure cross-line disconnecting switch
3QS so that electric current is switched into from No. 2 lines, form 1# inlet wire+2# main transformers enters ray mode；Assuming that the main transformer pressure in 2# inlet wires
Device 2B is broken down, and main transformer 2B is protected, then backup auto-activating device control 1# main transformers high-pressure side intelligent assembly or/and 2# main transformers
High-pressure side intelligent assembly closes cross-line disconnecting switch 3QS so that electric current is switched into from Line 1, forms 2# inlet wire+1# main transformers
Enter ray mode.
The main transformer main protection includes 1# main transformers main protection and 2# main transformer main protections, 1# main transformer main protections
Device, main transformer backup protection device includes 1# main transformer backup protection devices and 2# main transformer backup protection devices, main transformer body protection
Device includes 1# main transformer bodies protection device and 2# main transformer body protection devices, and 1# main transformers main protection, the standby of 1# main transformers are protected
Protection unit, 1# main transformer bodies protection device correspond to control main transformer 1B, 2# main transformer main protection, 2# main transformer backup protections
Device, 1# main transformer bodies protection device correspond to control main transformer 2B.
Also include neutral point of main transformer disconnecting switch and become rail backflow disconnecting switch, intelligent assembly collection in main transformer high-pressure side is neutral
The Current Voltage of point disconnecting switch simultaneously controls cut-offfing for neutral point disconnecting switch, and main transformer low-pressure side α phases intelligent assembly, main transformer are low
The β phases intelligent assembly collection of pressure side becomes the Current Voltage of rail backflow disconnecting switch and controls to become cut-offfing for rail backflow disconnecting switch, main
Becoming neutral point disconnecting switch includes neutral point of main transformer disconnecting switch 7QS and neutral point of main transformer disconnecting switch 8QS, neutral point of main transformer every
Leave after pass 7QS is connected with the neutral point of main transformer 1B and be grounded, in neutral point of main transformer disconnecting switch 8QS and main transformer 2B
Property point connection after be grounded, become rail backflow disconnecting switch include become rail backflow disconnecting switch 9QS and become rail backflow disconnecting switch 10QS,
Become rail backflow disconnecting switch 9QS be connected with the change rail reflux point of main transformer 1B after be grounded, become rail flow back disconnecting switch 10QS and
It is grounded after the change rail reflux point connection of main transformer 2B.
The stand-by power supply of the railway digital traction substation hauls oneself willingly into method, comprises the following steps：
S1：Electric substation's power supply mode is analyzed, supply network is generated；
S2：Disconnecting switch and breaker, transformer, α phase lines and the β phase line methods of operation in identification supply network, and
The switch original state of all disconnecting switch and breaker is recorded, by the situation of disconnecting switch and breaker, is kept apart
The voltage condition with breaker is closed, so as to judge whether 1# inlet wires or 2# inlet wires put into operation；
S3：When electric substation breaks down, judgement is inlet wire fault trip or main transformer fault trip, if there is inlet wire
Fault trip then goes to step S4, and S7 is gone to step if it there is main transformer fault trip；
S4：After electric substation occurs inlet wire fault trip, judge that whether normal another inlet wire working power is powered, if another
Inlet wire working power is normal, then S5 is gone to step, if another inlet wire working power goes to step S6 without pressure；
S5：If another inlet wire working power is normally powered, faulty inlet wire is cut off by backup auto-activating device, by control
Cross-line disconnecting switch 3QS's cut-offs so that on automatic switching to another inlet wire, makes the fast quick-recovery normal power supply of electric substation, while
Backup auto-activating device sends out actuating signal to backstage and scheduling；
S6：If another inlet wire working power also without pressure, faulty inlet wire is cut off by backup auto-activating device, switching is not to separately
On one inlet wire, electric substation is had a power failure entirely, while backup auto-activating device sends out actuating signal to backstage and scheduling；
S7：After electric substation occurs main transformer fault trip, judge whether another main transformer be working properly.If another
One main transformer is working properly, then go to step S8, if the work of another main transformer is abnormal, goes to step S9；
S8：If another main transformer is working properly, faulty main transformer is cut off by backup auto-activating device, by control
Cross-line disconnecting switch 3QS's processed cut-offs so that on automatic switching to another main transformer, the fast quick-recovery of electric substation is normally supplied
Electricity, while backup auto-activating device sends out actuating signal to backstage and scheduling；
S9：If another main transformer work is abnormal, faulty main transformer is cut off by backup auto-activating device, do not thrown
Switch on another main transformer, electric substation is had a power failure entirely, while backup auto-activating device sends out actuating signal to backstage and scheduling；
S10：Backup auto-activating device automatic switching process terminates.
In step s 2, backup auto-activating device gathers each disconnecting switch, breaker by GOOSE network and intelligent assembly
Current Voltage, intelligent assembly includes main transformer high-pressure side intelligent assembly, main transformer low-pressure side α phases intelligent assembly, main transformer low-pressure side β phase intelligence
Can component.
In step s 2, backup auto-activating device by GOOSE network and main transformer main protection, main transformer backup protection device,
The protection act information of transformer body protection device collection main transformer and the information of voltage of inlet wire.
In step S5, step S6, step S8, step S9, backup auto-activating device sends divide-shut brake order by GOOSE network
To intelligent assembly, the corresponding controlled disconnecting switch of intelligent assembly control, breaker carry out breaking-closing operating, and intelligent assembly includes
Main transformer high-pressure side intelligent assembly, main transformer low-pressure side α phases intelligent assembly, main transformer low-pressure side β phase intelligent assemblies.
Beneficial effects of the present invention：The invention discloses a kind of stand-by power supply of electrified railway digital traction substation
Method is hauled oneself willingly into, overcomes conventional prepared auto restart cable complicated, cable is unable to self-inspection, design, construction, debugging, troublesome maintenance etc. and lacks extremely
Point, the prepared auto restart control based on network G OOSE communication mechanisms transmits divide-shut brake order and collection signal by GOOSE communication networks
The hardwired communication mode of conventional backup auto-activating device is instead of, device to switch, protection device and prepared auto restart in institute is eliminated and is filled
Large amount of complex control cable between putting, backup auto-activating device only needs an optical fiber to be realized and external smart group by process-level network
The connection of part and other intelligent IED.Realize that network real-time intelligent is monitored, GOOSE is by the continuous monitoring in communication process
GOOSE heartbeat messages, once finding that communication abnormality is reported immediately, realize the intelligent monitoring of secondary circuit between device, improve
The reliability of control signal transmission, reduces O＆M difficulty.Running status intelligent adaptive is realized, is reported in real time by GOOSE
Text, electric substation can Real time identification current operating conditions, mode is hauled oneself willingly into according to running status intelligent selection, it is ensured that haul oneself willingly into the suitable of function
Answering property and correctness.The automatic closing method ensure that electric substation to the rapid recovery normal power supply of railway contact line, after
Continue for electric locomotive safely and reliably conveys electric energy.
Brief description of the drawings
Fig. 1 is the circuit diagram of supply network.
Fig. 2 is the structural representation for hauling oneself willingly into control system.
Fig. 3 is the data flow schematic diagram for hauling oneself willingly into control system.
Specific embodiment
The present invention is described in further detail with reference to embodiment, but embodiments of the present invention not limited to this.
Embodiment 1：
As shown in Figure 1 and Figure 2 and Figure 3：
The standby power system of railway digital traction substation, including supply network, supply network include 1# inlet wires and
2# inlet wires, 1# inlet wires include the disconnecting switch 1QS, breaker 1QF, the main transformer 1B that are sequentially connected in series, the high pressure of main transformer 1B
Side is connected with breaker 1QF, and the low-pressure side of main transformer 1B connects α phase lines, the low pressure of main transformer 1B by breaker 3QF
Side connects β phase lines by breaker 5QF；2# inlet wires include the disconnecting switch 2QS, breaker 2QF, the main transformer that are sequentially connected in series
The high-pressure side of 2B, main transformer 2B is connected with breaker 2QF, and the low-pressure side of main transformer 2B connects α phase lines by breaker 4QF
Road, the low-pressure side of main transformer 2B connects β phase lines, the company between disconnecting switch 1QS and breaker 1QF by breaker 6QF
Contact is point A, and tie point between disconnecting switch 2QS and breaker 2QF is point B, point A pass through cross-line disconnecting switch 3QS and
Point B is connected；Also include hauling oneself willingly into control system, the control system of hauling oneself willingly into includes backup auto-activating device, and backup auto-activating device passes through
GOOSE nets are connected with main transformer high-pressure side intelligent assembly, main transformer low-pressure side α phases intelligent assembly, main transformer low-pressure side β phase intelligent assemblies；
Main transformer high-pressure side intelligent assembly includes 1# high-pressure sides intelligent assembly and 2# high-pressure sides intelligent assembly, the collection of 1# high-pressure sides intelligent assembly
The voltage x current of 1# high-side devices simultaneously controls cut-offfing for 1# high-side devices, 1# high-side devices include disconnecting switch 1QS and
Breaker 1QF, the voltage x current of cross-line disconnecting switch 3QS, 2# high-pressure sides intelligent assembly collection 2# high-side devices simultaneously control 2#
High-side devices are cut-off, and 2# high-side devices include disconnecting switch 2QS and breaker 2QF, cross-line disconnecting switch 3QS, main transformer
Low-pressure side α phases intelligent assembly gathers α phase low pressure side apparatus and controls cut-offfing for α phase low pressure side apparatus, and α phase low pressure side apparatus include
Breaker 3QF and breaker 4QF, main transformer low-pressure side β phases intelligent assembly collection β phase low pressure side apparatus simultaneously control β phase low-pressure sides to set
Standby cut-offs, and β phase low pressure side apparatus include breaker 5QF and breaker 6QF；Backup auto-activating device is by GOOSE nets and main transformer master
Protection device, main transformer backup protection device, main transformer body protection device connection, main transformer main protection as main transformer master
Protection device, realizes fast differential over current protection, biased differential protection；Main transformer backup protection device as main transformer back-up protection
Device, realizes that high-pressure side overcurrent protection, low-pressure side overcurrent protection, zero-sequencedirectional protection, low-pressure side overvoltage protection, overload are protected
Shield, o-volt protection；Main transformer body protection device realizes non-ionizing energy loss as the non-electricity protecting device of main transformer；It is described
Main transformer includes main transformer 1B and main transformer 2B.
Design principle of the invention is：Breaker in the intelligent assembly acquisition interval of electric substation's main transformer interval primary equipment
And disconnecting switch（Switch, disconnecting link）Electric substation's process-level network is sent to Deng quantity of state and with GOOSE message, it is digitized for certainly
Throw device and gather the GOOSE action messages that primary equipment information and other intelligent assemblies send from process-level network, it is right to realize
Traction substation stand-by power supply automatic switching.The method that this traction substation digitizes prepared auto restart, is passed by GOOSE communication networks
Defeated divide-shut brake order and collection signal instead of the hardwired communication mode of conventional backup auto-activating device, eliminate in institute device to opening
Close, the large amount of complex between protection device and backup auto-activating device controls cable, backup auto-activating device only needs an optical fiber to pass through process
Layer network realizes the connection with external smart component and other intelligent IED.Other GOOSE by communication process constantly from
Inspection, realizes the intelligent monitoring of secondary circuit between device, improves the reliability of control signal transmission.GOOSE（Generic
Object Oriented Substation Event）It is that it is towards the abbreviation of transformer station's general purpose event of general object
A kind of rapid message transmission mechanism in IEC61850, for transmitting the important Real time signal in the middle of Substation IED.
The stand-by power supply of the electrified railway digital traction substation of present invention design, mainly there is supply network and control
The 1# main transformers main protection of supply network processed, 2# main transformers main protection, 1# main transformer backup protection devices, the standby of 2# main transformers are protected
Protection unit, 1# main transformer bodies protection device, 2# main transformer bodies protection device, 1# main transformers high-pressure side intelligent assembly, 2# main transformer high pressures
Side intelligent assembly, 1# main transformer low-pressure side a phases intelligent assembly, 2# main transformer low-pressure sides a phases intelligent assembly and 1# main transformer low-pressure side b phase intelligence
Can component, 2# main transformer low-pressure side b phases intelligent assembly, by GOOSE nets（Process-level network）Connection.
Main transformer low-pressure side α phases intelligent assembly includes 1# main transformer low-pressure sides α phases intelligent assembly with 2# main transformer low-pressure side α phases intelligence
Component, main transformer low-pressure side β phases intelligent assembly includes 1# main transformer low-pressure sides β phases intelligent assembly and 2# main transformer low-pressure side β phase smart groups
Part, the voltage x current of 1# main transformer low-pressure side α phases intelligent assembly collection breaker 3QF simultaneously controls cut-offfing for breaker 3QF, 2# master
The voltage x current of low pressure side α phases intelligent assembly collection breaker 4QF simultaneously controls cut-offfing for breaker 4QF, 1# main transformer low-pressure sides
The voltage x current of β phases intelligent assembly collection breaker 5QF simultaneously controls cut-offfing for breaker 5QF, 2# main transformer low-pressure side β phases intelligence
The voltage x current of component collection breaker 6QF simultaneously controls cut-offfing for breaker 6QF.
On 1# inlet wires, disconnecting switch 1QS, breaker 1QF are located at the high-pressure side of main transformer 1B, breaker 3QF, open circuit
Device 5QF is located at the low-pressure side of main transformer 1B, and on 2# inlet wires, disconnecting switch 2QS, breaker 2QF are located at main transformer 2B's
High-pressure side, breaker 4QF, breaker 6QF are located at the low-pressure side of main transformer 2B, while opened using cross-line disconnecting switch 3QS cutting
1# inlet wires and 2# inlet wires are changed, normal electric substation powers there are four kinds of modes：1# inlet wire+1# main transformers, 1# inlet wire+2# main transformers, 2# inlet wires+
2# main transformers, 2# inlet wire+1# main transformers；Assuming that the breaker 1QF or/and breaker 3QF or/and breaker 5QF on 1# inlet wires occur
Failure, then backup auto-activating device control 1# main transformers high-pressure side intelligent assembly or/and 2# main transformers high-pressure side intelligent assembly closure cross-line every
Leave pass 3QS so that electric current is switched into from No. 2 lines, form 1# inlet wire+2# main transformers enters ray mode；Assuming that on 2# inlet wires
Breaker 2QF or/and breaker 4QF or/and road device 6QF break down, then backup auto-activating device control 1# main transformers high-pressure side intelligence
Component or/and 2# main transformers high-pressure side intelligent assembly closure cross-line disconnecting switch 3QS so that electric current is switched into from Line 1, is formed
2# inlet wire+1# main transformers enter ray mode；Assuming that the main transformer 1B in 1# inlet wires breaks down, main transformer 2B is protected, then
Backup auto-activating device controls 1# main transformers high-pressure side intelligent assembly or/and 2# main transformers high-pressure side intelligent assembly closure cross-line disconnecting switch
3QS so that electric current is switched into from No. 2 lines, form 1# inlet wire+2# main transformers enters ray mode；Assuming that the main transformer pressure in 2# inlet wires
Device 2B is broken down, and main transformer 2B is protected, then backup auto-activating device control 1# main transformers high-pressure side intelligent assembly or/and 2# main transformers
High-pressure side intelligent assembly closes cross-line disconnecting switch 3QS so that electric current is switched into from Line 1, forms 2# inlet wire+1# main transformers
Enter ray mode.
The main transformer main protection includes 1# main transformers main protection and 2# main transformer main protections, 1# main transformer main protections
Device, main transformer backup protection device includes 1# main transformer backup protection devices and 2# main transformer backup protection devices, main transformer body protection
Device includes 1# main transformer bodies protection device and 2# main transformer body protection devices, and 1# main transformers main protection, the standby of 1# main transformers are protected
Protection unit, 1# main transformer bodies protection device correspond to control main transformer 1B, 2# main transformer main protection, 2# main transformer backup protections
Device, 1# main transformer bodies protection device correspond to control main transformer 2B.
Also include neutral point of main transformer disconnecting switch and become rail backflow disconnecting switch, intelligent assembly collection in main transformer high-pressure side is neutral
The Current Voltage of point disconnecting switch simultaneously controls cut-offfing for neutral point disconnecting switch, and main transformer low-pressure side α phases intelligent assembly, main transformer are low
The β phases intelligent assembly collection of pressure side becomes the Current Voltage of rail backflow disconnecting switch and controls to become cut-offfing for rail backflow disconnecting switch, main
Becoming neutral point disconnecting switch includes neutral point of main transformer disconnecting switch 7QS and neutral point of main transformer disconnecting switch 8QS, neutral point of main transformer every
Leave after pass 7QS is connected with the neutral point of main transformer 1B and be grounded, in neutral point of main transformer disconnecting switch 8QS and main transformer 2B
Property point connection after be grounded, become rail backflow disconnecting switch include become rail backflow disconnecting switch 9QS and become rail backflow disconnecting switch 10QS,
Become rail backflow disconnecting switch 9QS be connected with the change rail reflux point of main transformer 1B after be grounded, become rail flow back disconnecting switch 10QS and
It is grounded after the change rail reflux point connection of main transformer 2B.
The stand-by power supply of the railway digital traction substation hauls oneself willingly into method, comprises the following steps：
S1：Electric substation's power supply mode is analyzed, supply network is generated；
S2：Disconnecting switch and breaker, transformer, α phase lines and the β phase line methods of operation in identification supply network, and
The switch original state of all disconnecting switch and breaker is recorded, by the situation of disconnecting switch and breaker, is kept apart
The voltage condition with breaker is closed, so as to judge whether 1# inlet wires or 2# inlet wires put into operation；
S3：When electric substation breaks down, judgement is inlet wire fault trip or main transformer fault trip, if there is inlet wire
Fault trip then goes to step S4, and S7 is gone to step if it there is main transformer fault trip；
S4：After electric substation occurs inlet wire fault trip, judge that whether normal another inlet wire working power is powered, if another
Inlet wire working power is normal, then S5 is gone to step, if another inlet wire working power goes to step S6 without pressure；
S5：If another inlet wire working power is normally powered, faulty inlet wire is cut off by backup auto-activating device, by control
Cross-line disconnecting switch 3QS's cut-offs so that on automatic switching to another inlet wire, makes the fast quick-recovery normal power supply of electric substation, while
Backup auto-activating device sends out actuating signal to backstage and scheduling；
S6：If another inlet wire working power also without pressure, faulty inlet wire is cut off by backup auto-activating device, switching is not to separately
On one inlet wire, electric substation is had a power failure entirely, while backup auto-activating device sends out actuating signal to backstage and scheduling；
S7：After electric substation occurs main transformer fault trip, judge whether another main transformer be working properly.If another
One main transformer is working properly, then go to step S8, if the work of another main transformer is abnormal, goes to step S9；
S8：If another main transformer is working properly, faulty main transformer is cut off by backup auto-activating device, by control
Cross-line disconnecting switch 3QS's processed cut-offs so that on automatic switching to another main transformer, the fast quick-recovery of electric substation is normally supplied
Electricity, while backup auto-activating device sends out actuating signal to backstage and scheduling；
S9：If another main transformer work is abnormal, faulty main transformer is cut off by backup auto-activating device, do not thrown
Switch on another main transformer, electric substation is had a power failure entirely, while backup auto-activating device sends out actuating signal to backstage and scheduling；
S10：Backup auto-activating device automatic switching process terminates.
In step s 2, backup auto-activating device gathers each disconnecting switch, breaker by GOOSE network and intelligent assembly
Current Voltage, intelligent assembly includes main transformer high-pressure side intelligent assembly, main transformer low-pressure side α phases intelligent assembly, main transformer low-pressure side β phase intelligence
Can component.
In step s 2, backup auto-activating device by GOOSE network and main transformer main protection, main transformer backup protection device,
The protection act information of transformer body protection device collection main transformer and the information of voltage of inlet wire.
In step S5, step S6, step S8, step S9, backup auto-activating device sends divide-shut brake order by GOOSE network
To intelligent assembly, the corresponding controlled disconnecting switch of intelligent assembly control, breaker carry out breaking-closing operating, and intelligent assembly includes
Main transformer high-pressure side intelligent assembly, main transformer low-pressure side α phases intelligent assembly, main transformer low-pressure side β phase intelligent assemblies.
Embodiments of the invention are the foregoing is only, the scope of the claims of the invention is not thereby limited, it is every to utilize this hair
Equivalent structure or equivalent flow conversion that bright description is made, or directly or indirectly it is used in other related technology necks
Domain, is included within the scope of the present invention.
Claims (8)
1. the standby power system of railway digital traction substation, it is characterised in that：Including supply network, supply network includes
1# inlet wires and 2# inlet wires, 1# inlet wires include the disconnecting switch 1QS, breaker 1QF, the main transformer 1B, main transformer that are sequentially connected in series
The high-pressure side of 1B is connected with breaker 1QF, and the low-pressure side of main transformer 1B connects α phase lines, main transformer by breaker 3QF
The low-pressure side of 1B connects β phase lines by breaker 5QF；2# inlet wires include be sequentially connected in series disconnecting switch 2QS, breaker 2QF,
The high-pressure side of main transformer 2B, main transformer 2B is connected with breaker 2QF, and the low-pressure side of main transformer 2B passes through breaker 4QF
Connection α phase lines, the low-pressure side of main transformer 2B connects β phase lines, disconnecting switch 1QS and breaker 1QF by breaker 6QF
Between tie point be point A, tie point between disconnecting switch 2QS and breaker 2QF is point B, and point A is kept apart by cross-line
3QS is closed to be connected with point B；Also include hauling oneself willingly into control system, the control system of hauling oneself willingly into includes backup auto-activating device, backup auto-activating device
Connected with main transformer high-pressure side intelligent assembly, main transformer low-pressure side α phases intelligent assembly, main transformer low-pressure side β phases intelligent assembly by GOOSE nets
Connect；Main transformer high-pressure side intelligent assembly includes 1# high-pressure sides intelligent assembly and 2# high-pressure sides intelligent assembly, 1# high-pressure sides intelligent assembly
Gather the voltage x current of 1# high-side devices and control cut-offfing for 1# high-side devices, 1# high-side devices include disconnecting switch
1QS and breaker 1QF, cross-line disconnecting switch 3QS, 2# high-pressure sides intelligent assembly collection 2# high-side devices voltage x current and
Cut-offfing for 2# high-side devices is controlled, 2# high-side devices include disconnecting switch 2QS and breaker 2QF, cross-line disconnecting switch
3QS, main transformer low-pressure side α phases intelligent assembly collection α phase low pressure side apparatus simultaneously control cut-offfing for α phase low pressure side apparatus, α phase low-pressure sides
Equipment includes breaker 3QF and breaker 4QF, and main transformer low-pressure side β phases intelligent assembly collection β phase low pressure side apparatus simultaneously control β phases
Low pressure side apparatus cut-off, and β phase low pressure side apparatus include breaker 5QF and breaker 6QF；Backup auto-activating device passes through GOOSE nets
It is connected with main transformer main protection, main transformer backup protection device, main transformer body protection device, main transformer main protection is used as main transformer
The main protection of depressor, realizes fast differential over current protection, biased differential protection；Main transformer backup protection device is used as main transformer
Reserve protection, realize high-pressure side overcurrent protection, low-pressure side overcurrent protection, zero-sequencedirectional protection, low-pressure side overvoltage protection,
Overload protection, o-volt protection；Main transformer body protection device realizes that non electrical quantity is protected as the non-electricity protecting device of main transformer
Shield；The main transformer includes main transformer 1B and main transformer 2B.
2. the standby power system of railway digital traction substation according to claim 1, it is characterised in that：Main transformer is low
Pressure side α phases intelligent assembly includes 1# main transformer low-pressure sides α phases intelligent assembly and 2# main transformer low-pressure side α phase intelligent assemblies, main transformer low pressure
Side β phases intelligent assembly includes 1# main transformer low-pressure sides β phases intelligent assembly and 2# main transformer low-pressure side β phase intelligent assemblies, 1# main transformer low pressure
Side α phases intelligent assembly gathers the voltage x current of breaker 3QF and controls cut-offfing for breaker 3QF, 2# main transformer low-pressure side α phase intelligence
The voltage x current of energy component collection breaker 4QF simultaneously controls cut-offfing for breaker 4QF, and 1# main transformer low-pressure side β phase intelligent assemblies are adopted
The voltage x current of collection breaker 5QF simultaneously controls cut-offfing for breaker 5QF, 2# main transformer low-pressure side β phases intelligent assembly collection breaker
The voltage x current of 6QF simultaneously controls cut-offfing for breaker 6QF.
3. the standby power system of railway digital traction substation according to claim 1, it is characterised in that：The master
Becoming main protection includes 1# main transformers main protection and 2# main transformer main protections, and main transformer backup protection device includes 1# main transformers
Reserve protection and 2# main transformer backup protection devices, main transformer body protection device include 1# main transformer bodies protection device and 2# master
Become main body protection device, 1# main transformers main protection, 1# main transformer backup protection devices, 1# main transformer bodies protection device correspond to control
Main transformer 1B processed, 2# main transformers main protection, 2# main transformer backup protection devices, 1# main transformer bodies protection device correspond to control
Main transformer 2B.
4. the standby power system of the railway digital traction substation according to any one in claim 1-3, it is special
Levy and be：Also include neutral point of main transformer disconnecting switch and become rail backflow disconnecting switch, intelligent assembly collection in main transformer high-pressure side is neutral
The Current Voltage of point disconnecting switch simultaneously controls cut-offfing for neutral point disconnecting switch, and main transformer low-pressure side α phases intelligent assembly, main transformer are low
The β phases intelligent assembly collection of pressure side becomes the Current Voltage of rail backflow disconnecting switch and controls to become cut-offfing for rail backflow disconnecting switch, main
Becoming neutral point disconnecting switch includes neutral point of main transformer disconnecting switch 7QS and neutral point of main transformer disconnecting switch 8QS, neutral point of main transformer every
Leave after pass 7QS is connected with the neutral point of main transformer 1B and be grounded, in neutral point of main transformer disconnecting switch 8QS and main transformer 2B
Property point connection after be grounded, become rail backflow disconnecting switch include become rail backflow disconnecting switch 9QS and become rail backflow disconnecting switch 10QS,
Become rail backflow disconnecting switch 9QS be connected with the change rail reflux point of main transformer 1B after be grounded, become rail flow back disconnecting switch 10QS and
It is grounded after the change rail reflux point connection of main transformer 2B.
5. standby power system based on the railway digital traction substation described in any one in claim 1-4 is hauled oneself willingly into
Method, it is characterised in that comprise the following steps：
S1：Electric substation's power supply mode is analyzed, supply network is generated；
S2：Disconnecting switch and breaker, transformer, α phase lines and the β phase line methods of operation in identification supply network, and record
The switch original state of all disconnecting switch and breaker, by the situation of disconnecting switch and breaker, disconnecting switch and
The voltage condition of breaker, so as to judge whether 1# inlet wires or 2# inlet wires put into operation；
S3：When electric substation breaks down, judgement is inlet wire fault trip or main transformer fault trip, if there is inlet wire failure
Tripping operation then goes to step S4, and S7 is gone to step if it there is main transformer fault trip；
S4：After electric substation occurs inlet wire fault trip, judge that whether normal another inlet wire working power is powered, if another inlet wire
Working power is normal, then S5 is gone to step, if another inlet wire working power goes to step S6 without pressure；
S5：If another inlet wire working power is normally powered, faulty inlet wire is cut off by backup auto-activating device, by controlling cross-line
Disconnecting switch 3QS's cut-offs so that on automatic switching to another inlet wire, makes the fast quick-recovery normal power supply of electric substation, while for certainly
Throw device and send out actuating signal to backstage and scheduling；
S6：If another inlet wire working power also without pressure, faulty inlet wire is cut off by backup auto-activating device, not switching to it is another enter
On line, electric substation is had a power failure entirely, while backup auto-activating device sends out actuating signal to backstage and scheduling；
S7：After electric substation occurs main transformer fault trip, judge whether another main transformer be working properly,
If another main transformer is working properly, S8 is gone to step, if the work of another main transformer is abnormal, go to step S9；
S8：If another main transformer is working properly, faulty main transformer is cut off by backup auto-activating device, by control across
Line disconnecting switch 3QS's cut-offs so that on automatic switching to another main transformer, makes the fast quick-recovery normal power supply of electric substation, together
When backup auto-activating device send out actuating signal to backstage and scheduling；
S9：If another main transformer work is abnormal, faulty main transformer is cut off by backup auto-activating device, switching is not arrived
On another main transformer, electric substation is had a power failure entirely, while backup auto-activating device sends out actuating signal to backstage and scheduling；
S10：Backup auto-activating device automatic switching process terminates.
It is 6. according to claim 5 to haul oneself willingly into method, it is characterised in that：In step s 2, backup auto-activating device passes through GOOSE nets
Network and intelligent assembly gather the Current Voltage of each disconnecting switch, breaker, intelligent assembly include main transformer high-pressure side intelligent assembly,
Main transformer low-pressure side α phases intelligent assembly, main transformer low-pressure side β phase intelligent assemblies.
7. method is hauled oneself willingly into according to claim 5, it is characterised in that：In step s 2, backup auto-activating device passes through GOOSE
Network and main transformer main protection, main transformer backup protection device, the protection of transformer body protection device collection main transformer are moved
Make the information of voltage of information and inlet wire.
8. method is hauled oneself willingly into according to claim 5, it is characterised in that：In step S5, step S6, step S8, step S9
In, backup auto-activating device sends divide-shut brake order to intelligent assembly by GOOSE network, intelligent assembly control it is corresponding it is controlled every
Leaving pass, breaker carries out breaking-closing operating, and intelligent assembly includes main transformer high-pressure side intelligent assembly, main transformer low-pressure side α phases intelligence
Component, main transformer low-pressure side β phase intelligent assemblies.
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| CN105932769B (en) * | 2016-07-07 | 2018-09-28 | 国电南瑞南京控制系统有限公司 | A kind of electric railway traction substation power supply seamless switching device and method |
| CN109768527B (en) * | 2018-12-14 | 2020-11-24 | 国电南京自动化股份有限公司 | Intelligent traction substation hierarchical protection method and system |
| CN109888657B (en) * | 2019-03-14 | 2020-05-19 | 北海银河开关设备有限公司 | High voltage switch equipment for railway traction |
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| CN102097856B (en) * | 2011-01-18 | 2013-03-13 | 北京四方继保自动化股份有限公司 | Spare power automatic switching programmable logic control method for plant supply of power station |
| CN102255380B (en) * | 2011-08-02 | 2013-04-17 | 上海思源弘瑞自动化有限公司 | Intelligent substation self-adaptive Standby power supply automatic throw-in equipment and method |
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