CN107230966A - Traction substation direct current dead electricity emergency protection system and method - Google Patents
Traction substation direct current dead electricity emergency protection system and method Download PDFInfo
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- CN107230966A CN107230966A CN201710545319.6A CN201710545319A CN107230966A CN 107230966 A CN107230966 A CN 107230966A CN 201710545319 A CN201710545319 A CN 201710545319A CN 107230966 A CN107230966 A CN 107230966A
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- direct current
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- 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
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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
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
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- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention discloses traction substation direct current dead electricity emergency protection system and method, it is emergency protecting equipment including ups power, telemechanical administrative unit and interchanger provide dc source, the emergency protecting equipment is also connected with the auxiliary contact of main transformer high-pressure side breaker and the breaking coil two of main transformer high-pressure side breaker, the emergency protecting equipment is also connected with interchanger, the interchanger with emergency protecting equipment and ups power while being connected, also it is connected with telemechanical administrative unit and control centre, the breaking coil one of main transformer high-pressure side open circuit in the protection system is connected with the trip(ping) circuit of comprehensive self-protecting device.The breaking coil of the main transformer high-pressure side breaker of the system is provided with two, and the trip(ping) circuit with comprehensive self-protecting device and emergency protecting equipment are connected respectively, and the breaking coil one of main transformer high-pressure side therein breaker is connected with the trip(ping) circuit of comprehensive self-protecting device.
Description
Technical field
The present invention relates to a kind of loss protecting system, and in particular to traction substation direct current dead electricity emergency protection system and side
Method.
Background technology
Traction substation is electric railway critical facility, is responsible for the electric energy of power system to be changed into lead suitable for electric power
The electric energy drawn, is powered by contact net for electric locomotive.Traction substation failure will cause contact net dead electricity, influence railway fortune
It is defeated.Each separate protection device such as the Control protection system of traction substation is protected by tractive transformer, protection for feed line
Constitute, protection device and switchgear operation the power supply dc source in traction substation are powered.
Control protection system is the visual plant of traction substation, without standby, belongs to weak current equipment, works as traction substation
By being struck by lightning, high-voltage switch gear insulation breakdown, earthquake, fire, when D. C. power source breakdown, a Control protection system in influence institute
Normal operation, will make traction substation primary equipment be in a kind of state without relay protection, if traction transformer continue
Operation, will have very high security risk, because failure or the abnormal shapes such as short circuit, overload once occur in the case
State, breakers at different levels can not trip, and will jeopardize can trigger equipment to rise under the person, equipment and system operation safety, serious conditions
The major accidents such as fire.Therefore the serious consequence caused for the interior Control protection system irregular working of institute should attach great importance to simultaneously
Work out a kind of emergent method remedied.
The content of the invention
The technical problems to be solved by the invention are that traction substation needs independent emergency protection system, it is desirable to be able to adopted
With independent current source, comprehensive self-protecting device control loop power monitoring node signal can be gathered, when integrated automation device is important
During the dead electricity of loop, driving traction substation inlet wire high-pressure side circuit breaker trip, it is therefore intended that traction substation direct current dead electricity is provided
Emergency protection system and method, the problem of solving above-mentioned.
The present invention is achieved through the following technical solutions：
Traction substation direct current dead electricity emergency protection system, including ups power are emergency protecting equipment, telemechanical administrative unit
Dc source, auxiliary contact and main transformer high pressure of the emergency protecting equipment also with main transformer high-pressure side breaker are provided with interchanger
The breaking coil two of side breaker is connected, and the emergency protecting equipment is also connected with interchanger, and the interchanger is protected with emergent
While protection unit and ups power connection, also it is connected with telemechanical administrative unit and control centre, the main transformer in the protection system
The breaking coil one of high-pressure side open circuit is connected with the trip(ping) circuit of comprehensive self-protecting device.The main transformer high-pressure side breaker of the system
Breaking coil is provided with two, and the trip(ping) circuit with comprehensive self-protecting device and emergency protecting equipment are connected respectively, main transformer therein
The breaking coil one of high-pressure side breaker is connected with the trip(ping) circuit of comprehensive self-protecting device, can comprehensive self-protecting device tripping operation
Loop separately provides electric current, and the breaking coil one of control main transformer high-pressure side breaker is tripped, the emergency protecting equipment control
The breaking coil two of the main transformer high-pressure side breaker of system carries out separating brake to breaker.By the trip(ping) circuit of comprehensive self-protecting device and
Protected after the carry out dead electricity that emergency protecting equipment can be stablized, pass through the He of breaking coil one of main transformer high-pressure side breaker
The breaking coil two of main transformer high-pressure side breaker carries out double shield.
Further, the ups power input power inputs or merely entered two kinds of moulds of DC current simultaneously using alternating current-direct current
Formula.The direct current of the ups power input is 110V or 220V.Using two kinds of Transmission Modes, system compatible DC current can be allowed
With two kinds of ac and dc current, and power input is used to can adapt to different specifications for 110V and 220V, at present in Chinese state
Interior use 220V voltages, are lost when can reduce transmission, reduce the live load for becoming electrical equipment；And the external 110V generally used is then
Safer compared with 220V, the system adapts to two kinds of voltages simultaneously, can adapt to the change of varying environment.
Further, self-contained battery inside the ups power, under input alternating current-direct current outage situation, self-contained battery can be to
Load transmission of electricity more than 10min.After the alterating and direct current power-off of input, ups power is required to itself and is powered to system, is
Guarantee electrical employee is handled, and in order to protect the safety of system, self-contained battery need to load transmission of electricity 10min with
On, the time that electrical employee can be allowed to have abundance is handled, safeguards system operation safety.
Further, the emergency protecting equipment sets four road direct current acquisition circuits, is judged by definite value and logical relation
Straight-flow system dead electricity, and drive the breaking coil two of main transformer high-pressure side breaker to carry out separating brake, while recording dc source change
Situation and main transformer high-pressure side trip condition, form Trouble Report and failure wave-recording.Direct current is being judged by definite value and logical relation
After system dead electricity, by driving the separating brake of breaking coil two of main transformer high-pressure side breaker, system is protected, and records
Dc source is replaced by situation of change just raw after the power supply that ups power is provided for oneself, and trip condition and power source change situation are recorded
It is transmitted as Trouble Report.
Further, the first paragraph o-volt protection of the emergency protecting equipment is entered when voltage block logic is exited/put into
Two kinds of actions of row, second segment o-volt protection carries out two kinds of actions when voltage block logic is exited/put into.The emergency protection dress
Put after second segment o-volt protection action, the control loop power supply of cutoff high side breaker puts into emergency protection system dc
Power supply, and trip signal is triggered by main transformer high-pressure side circuit breaker trip.In first paragraph o-volt protection, control word " voltage block
Or logic " exit, logical AND calculating is carried out, it controls mother KM1~KM4 voltage simultaneously less than or equal to decompression setting valve, is passing through
O-volt protection time limit setting value sends alarm signal to control centre；First paragraph o-volt protection control word " voltage block or
When logic " is put into, first carry out logic or, carrying out logical AND, control mother KM1~KM4 voltage one of them less than or equal to decompression
Setting valve, alarm signal is sent being limited by o-volt protection to control centre；In second segment o-volt protection, work as control word
" voltage block or logic " is exited, and carries out logical AND, and its voltage for controlling mother KM1~KM4 is less than or equal to decompression setting valve simultaneously,
Alarm signal is sent to control centre by o-volt protection time limit setting value, while main transformer high-pressure side breaker is tripped；
When second segment o-volt protection, control word " voltage block or logic " input first carries out logic or, is carrying out logical AND, control is female
One of them is less than or equal to decompression setting valve to KM1~KM4 voltage, is alerted limiting to send to control centre by o-volt protection
Signal, while main transformer side primary cut-out is tripped.
Further, the emergency protecting equipment is internally provided with multichannel ethernet interface, using superfluous using optical fiber
The remaining bicyclic web frame of self-healing carries out Network Communication.Emergency protecting equipment supports multiple network structure, can meet different types of change
Demand of the power station to communication network.Device at most supports 1 TCP connection using IEC103 agreements to use XJ104 with 6 simultaneously
The TCP connections of agreement.With GPS using SNTP agreements, the clock of B code means for correctings.
Further, detection means is provided with emergency protecting equipment, the internal control of detection in real time is female, when voltage is more than setting
During value, signal is sent to control loop by delay.Device is in normal operation, and the road DC voltage of detection KM1~4 works as voltage
During more than there is preset value, through delay hair " control mother has pressure " signal.When the voltage of detection is less than preset value, first paragraph decompression is carried out
Protection, the elapsed time is still less than preset value, carries out second segment o-volt protection.
Further, the emergency protecting equipment send Trouble Report by telemechanical administrative unit to control centre's transmission, adjusts
Spend the running situation that emergency protecting equipment is monitored centrally through telemechanical administrative unit.The failure report sent by emergency protecting equipment
Accuse, the staff in control centre can have found and be handled in time；The staff of control centre can also be by remote
Dynamic management monitoring unit is checked in real time to the running situation of emergency protecting equipment, can allow whole system at any time in prison
Superintend and direct state.
Further, the interchanger extension telemechanical management passage network interface, can be by emergency protecting equipment in direct current dead electricity
Tripping operation information send in time to control centre.The telemechanical supervisor and interchanger of emergency protection system are by ups power direct current
Output power supply, it is ensured that emergency protection tripping operation information can be accurately and timely sent to control centre during direct current dead electricity in institute.
Further, the trip(ping) circuit control main transformer high-pressure side circuit breaker trip coil one of the comprehensive self-protecting device, leads to
The power supply for crossing comprehensive self-protecting device provides separating brake power supply.Comprehensive self-protecting device and emergency protecting equipment are using two sets of independent electricity
Source, ensure that the normal operation of two devices, when one of device breaks down, can find in time, improve whole system
The stability of system operation.
Traction substation direct current dead electricity emergency protection method, is powered by independent current source to whole system, including with
Lower step：
S1：Ups power is respectively to emergency protecting equipment, telemechanical administrative unit, interchanger input DC power, emergency protection
The breaking coil two of device control main transformer high-pressure side breaker, and jumped by the comprehensive self-protecting device that another independent current source is controlled
The breaking coil one of lock circuit controls main transformer high-pressure side breaker.S2：When the definite value and logical relation of emergency protecting equipment change
Judgement system dead electricity, the breaking coil two for triggering the main transformer high-pressure side breaker of control is acted, main transformer high-pressure side circuit breaker trip,
After the trip(ping) circuit dead electricity of comprehensive self-protecting device, the breaking coil one for triggering the main transformer high-pressure side breaker of control is acted, together
Sample causes main transformer high-pressure side circuit breaker trip, and after the circuit breaker trip of main transformer high-pressure side, emergency protecting equipment records direct current simultaneously
Power source change situation and main transformer high-pressure side trip condition, form Trouble Report and failure wave-recording.S3：Emergency protecting equipment is by failure
Report and failure wave-recording are sent to transfer center by interchanger, and transfer center is handled Trouble Report and failure wave-recording,
And control centre monitors the running situation of emergency protecting equipment by telemechanical administrative unit.
Emergency protecting equipment gathers the four road DC voltages that integrated system is led to from straight-flow system respectively in the step S2
Loop, what is gathered respectively serves as theme and feeder line two-way.It is four road direct currents using DC voltage losing criterion by gathering two paths of data
Pressure with or relation can be adjusted in device setting valve.
The present invention compared with prior art, has the following advantages and advantages：
1st, traction substation direct current dead electricity emergency protection system and method for the present invention, ups power input power uses two kinds
Pattern, it is possible to increase the compatibility of whole system；
2nd, traction substation direct current dead electricity emergency protection system and method for the present invention, is tripped and is divided using twin coil
Lock, improves system accuracies；
3rd, traction substation direct current dead electricity emergency protection system and method for the present invention, electricity Tiao centers can be in time to failure report
Announcement is handled, and can monitor emergency protecting equipment in real time.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, constitutes one of the application
Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is present system flow chart.
Fig. 2 is the first o-volt protection of the invention action logic figure when control word " voltage block or logic " is exited；
Fig. 3 is the first o-volt protection of the invention action logic figure when control word " voltage block or logic " is put into；
Fig. 4 is the second o-volt protection of the invention action logic figure when control word " voltage block or logic " is exited；
Fig. 5 is the second o-volt protection of the invention action logic figure when control word " voltage block or logic " is put into.
Symbol in accompanying drawing represents title：
U_KM1To control female 1 voltage；U_KM2To control female 2 voltage；U_KM3To control female 3 voltage；U_KM4To control female 4 voltage；
U<_set1For first paragraph decompression setting valve；U<_T1For one section of o-volt protection time limit setting value；
U<_set2For second segment decompression setting valve；U<_T2For two sections of o-volt protection time limit setting values.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment and accompanying drawing, to this
Invention is described in further detail, and exemplary embodiment and its explanation of the invention is only used for explaining the present invention, does not make
For limitation of the invention.
Embodiment one
As shown in figure 1, traction substation direct current dead electricity emergency protection system and method for the present invention, traction substation direct current loses
Electric emergency protection system and method, including ups power is emergency protecting equipment, telemechanical administrative unit and interchanger provide direct current
Source, auxiliary contact and the breaking coil of main transformer high-pressure side breaker of the emergency protecting equipment also with main transformer high-pressure side breaker
Two connections, the emergency protecting equipment is also connected with interchanger, and the interchanger is connected with emergency protecting equipment and ups power
While, also it is connected with telemechanical administrative unit and control centre, the tripping operation line of the main transformer high-pressure side open circuit in the protection system
Circle one is connected with the trip(ping) circuit of comprehensive self-protecting device.The breaking coil of the main transformer high-pressure side breaker of the system is provided with two
Individual, trip(ping) circuit and emergency protecting equipment respectively with comprehensive self-protecting device are connected, the jump of main transformer high-pressure side therein breaker
Brake cable circle one is connected with the trip(ping) circuit of comprehensive self-protecting device, can separately provide electricity in the trip(ping) circuit of comprehensive self-protecting device
Stream, the breaking coil one of control main transformer high-pressure side breaker is tripped, the main transformer high-pressure side of the emergency protecting equipment control
The breaking coil two of breaker carries out separating brake to breaker.Trip(ping) circuit and emergency protecting equipment energy by comprehensive self-protecting device
Enough protected after stable carry out dead electricity, pass through the breaking coil one and main transformer high-pressure side breaker of main transformer high-pressure side breaker
Breaking coil two carry out double shield.The emergency protecting equipment passes transmission failure by telemechanical administrative unit to control centre
Report, control centre monitors the running situation of emergency protecting equipment by telemechanical administrative unit.Sent by emergency protecting equipment
Trouble Report, the staff in control centre can have found and be handled in time；The staff of control centre can also
Enough by telemechanical manage monitoring unit the running situation of emergency protecting equipment is checked in real time, can allow whole system with
When be in monitor state.
The interchanger extends telemechanical management passage network interface, in direct current dead electricity, can believe the tripping operation of emergency protecting equipment
Breath is sent to control centre in time.The telemechanical supervisor and interchanger of emergency protection system are powered by ups power direct current output,
It can ensure emergency protection tripping operation information can be accurately and timely sent into control centre during direct current dead electricity in institute.
Embodiment two
The present embodiment can be optimized on the basis of embodiment one, and the ups power input power uses alternating current-direct current
Input or merely enter DC current both of which simultaneously.The direct current of the ups power input is 110V or 220V.It is defeated using two kinds
Power mode, can allow two kinds of system compatible DC current and ac and dc current, and use power input for 110V and 220V energy
Different specifications are enough adapted to, 220V voltages is used in China at present, is lost when can reduce transmission, the work for becoming electrical equipment is reduced
Make load；And the 110V that foreign countries generally use is then safer compared with 220V, the system adapts to two kinds of voltages simultaneously, can adapt to not
With the change of environment.
Self-contained battery inside the ups power, under input alternating current-direct current outage situation, self-contained battery can transmit electricity to load
More than 10min.After the alterating and direct current power-off of input, ups power is required to itself and is powered to system, in order to ensure electricity
Power employee is handled, and in order to protect the safety of system, self-contained battery is needed to load transmission of electricity more than 10min, Neng Gourang
The time that electrical employee has abundance is handled, safeguards system operation safety.
Embodiment three
Traction substation direct current dead electricity emergency protection method, is powered by independent current source to whole system, including with
Lower step：
S1：Ups power is respectively to emergency protecting equipment, telemechanical administrative unit, interchanger input DC power, emergency protection
The breaking coil two of device control main transformer high-pressure side breaker, and jumped by the comprehensive self-protecting device that another independent current source is controlled
The breaking coil one of lock circuit controls main transformer high-pressure side breaker.S2：When the definite value and logical relation of emergency protecting equipment change
Judgement system dead electricity, the breaking coil two for triggering the main transformer high-pressure side breaker of control is acted, main transformer high-pressure side circuit breaker trip,
After the trip(ping) circuit dead electricity of comprehensive self-protecting device, the breaking coil one for triggering the main transformer high-pressure side breaker of control is acted, together
Sample causes main transformer high-pressure side circuit breaker trip, and after the circuit breaker trip of main transformer high-pressure side, emergency protecting equipment records direct current simultaneously
Power source change situation and main transformer high-pressure side trip condition, form Trouble Report and failure wave-recording.S3：Emergency protecting equipment is by failure
Report and failure wave-recording are sent to transfer center by interchanger, and transfer center is handled Trouble Report and failure wave-recording,
And control centre monitors the running situation of emergency protecting equipment by telemechanical administrative unit.
Emergency protecting equipment gathers the four road DC voltages that integrated system is led to from straight-flow system respectively in the step S2
Loop, what is gathered respectively serves as theme and feeder line two-way.It is four road direct currents using DC voltage losing criterion by gathering two paths of data
Pressure with or relation can be adjusted in device setting valve.
Example IV
As shown in Figure 2-5, the first paragraph o-volt protection of heretofore described emergency protecting equipment is moved back in voltage block logic
Two kinds of actions are carried out when going out/putting into, second segment o-volt protection carries out two kinds of actions when voltage block logic is exited/put into.Institute
Emergency protecting equipment is stated after second segment o-volt protection action, the control loop power supply of cutoff high side breaker, input is emergent
System dc power supply is protected, and triggers trip signal by main transformer high-pressure side circuit breaker trip.In first paragraph o-volt protection, control
Word " voltage block or logic " is exited, and carries out logical AND calculating, and the voltage that it controls mother KM1~KM4 is simultaneously whole less than or equal to decompression
Definite value, alarm signal is being sent by o-volt protection time limit setting value to control centre；In the control word of first paragraph o-volt protection
When " voltage block or logic " is put into, first carry out logic or, carrying out logical AND, one of them is small for control mother KM1~KM4 voltage
In equal to decompression setting valve, alarm signal is sent being limited by o-volt protection to control centre；In second segment o-volt protection,
When control word " voltage block or logic " is exited, logical AND is carried out, it controls mother KM1~KM4 voltage simultaneously less than or equal to decompression
Setting valve, is sending alarm signal, while by main transformer high-pressure side breaker by o-volt protection time limit setting value to control centre
Tripped；When second segment o-volt protection, control word " voltage block or logic " input first carries out logic or, patrolled
Volume one of them is less than or equal to decompression setting valve with, control mother KM1~KM4 voltage, is limited passing through o-volt protection into scheduling
The heart sends alarm signal, while main transformer side primary cut-out is tripped.
The emergency protecting equipment is internally provided with multichannel ethernet interface, using bicyclic using redundant optical fiber self-healing
Web frame carries out Network Communication.Emergency protecting equipment supports multiple network structure, can meet different types of transformer station to communication
The demand of network.Device at most supports the 1 TCP connection and 6 TCP using XJ104 agreements using IEC103 agreements simultaneously
Connection.With GPS using SNTP agreements, the clock of B code means for correctings.
Detection means is provided with emergency protecting equipment, the internal control of detection in real time is female, when voltage is more than setting value, passed through
It is delayed and sends signal to control loop.Device is in normal operation, and the road DC voltage of detection KM1~4 has default when voltage is more than
During value, through delay hair " control mother has pressure " signal.When the voltage of detection is less than preset value, first paragraph o-volt protection is carried out, is passed through
Time is still less than preset value, carries out second segment o-volt protection.
Above-described embodiment, has been carried out further to the purpose of the present invention, technical scheme and beneficial effect
Describe in detail, should be understood that the embodiment that the foregoing is only the present invention, be not used to limit this hair
Bright protection domain, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc. all should be wrapped
It is contained within protection scope of the present invention.
Claims (10)
1. traction substation direct current dead electricity emergency protection system, it is characterised in that including ups power be emergency protecting equipment, remote
Dynamic administrative unit and interchanger provide dc source, auxiliary contact of the emergency protecting equipment also with main transformer high-pressure side breaker
Connected with the breaking coil two of main transformer high-pressure side breaker, the emergency protecting equipment is also connected with interchanger, the interchanger
While being connected with emergency protecting equipment and ups power, also it is connected with telemechanical administrative unit and control centre, the protection system
The breaking coil one of main transformer high-pressure side open circuit in system is connected with the trip(ping) circuit of comprehensive self-protecting device.
2. traction substation direct current dead electricity emergency protection system according to claim 1, it is characterised in that the UPS electricity
Source input power inputs or merely entered DC current both of which simultaneously using alternating current-direct current.
3. traction substation direct current dead electricity emergency protection system according to claim 2, it is characterised in that the UPS electricity
The direct current of source input is self-contained battery inside 110V or 220V, the ups power, under input alternating current-direct current outage situation, is provided for oneself
Battery can be to load transmission of electricity more than 10min.
4. traction substation direct current dead electricity emergency protection system according to claim 1, it is characterised in that the emergent guarantor
Protection unit sets four road direct current acquisition circuits, judges straight-flow system dead electricity by definite value and logical relation, and drive main transformer high pressure
The breaking coil two of side breaker carries out separating brake, while recording dc source situation of change and main transformer high-pressure side trip condition, shape
Into Trouble Report and failure wave-recording.
5. traction substation direct current dead electricity emergency protection system according to claim 4, it is characterised in that the emergent guarantor
The first paragraph o-volt protection of protection unit carries out two kinds of actions when voltage block logic is exited/put into, and second segment o-volt protection exists
Two kinds of actions are carried out when voltage block logic is exited/put into.
6. the traction substation direct current dead electricity emergency protection system according to any one of claim 1 or 4, its feature exists
In the emergency protecting equipment send Trouble Report by telemechanical administrative unit to control centre's transmission, and control centre passes through telemechanical
Administrative unit monitors the running situation of emergency protecting equipment.
7. traction substation direct current dead electricity emergency protection system according to claim 1, it is characterised in that the interchanger
Telemechanical management passage network interface is extended, in direct current dead electricity, the tripping operation information of emergency protecting equipment can be in time sent into dispatching
The heart.
8. traction substation direct current dead electricity emergency protection system according to claim 1, it is characterised in that the comprehensive self-insurance
The trip(ping) circuit control main transformer high-pressure side circuit breaker trip coil one of protection unit, separating brake is provided by the power supply of comprehensive self-protecting device
Power supply.
9. traction substation direct current dead electricity emergency protection method, is powered, its feature exists by independent current source to whole system
In comprising the following steps：
S1：Ups power is respectively to emergency protecting equipment, telemechanical administrative unit, interchanger input DC power, emergency protecting equipment
The breaking coil two of main transformer high-pressure side breaker is controlled, and is tripped back by the comprehensive self-protecting device that another independent current source is controlled
The breaking coil one of road control main transformer high-pressure side breaker；
S2：When the definite value and logical relation of emergency protecting equipment change judgement system dead electricity, the main transformer high-pressure side of triggering control is broken
The breaking coil two of road device is acted, main transformer high-pressure side circuit breaker trip, after the trip(ping) circuit dead electricity of comprehensive self-protecting device, triggering
The breaking coil one of the main transformer high-pressure side breaker of control is acted, again such that main transformer high-pressure side circuit breaker trip, when main transformer is high
Press after the circuit breaker trip of side, emergency protecting equipment records dc source situation of change and main transformer high-pressure side trip condition, shape simultaneously
Into Trouble Report and failure wave-recording；
S3：Emergency protecting equipment sends Trouble Report and failure wave-recording to transfer center by interchanger, transfers center pair event
Barrier report and failure wave-recording are handled, and control centre monitors the operation feelings of emergency protecting equipment by telemechanical administrative unit
Condition.
10. traction substation direct current dead electricity emergency protection method according to claim 9, it is characterised in that：The step
Emergency protecting equipment gathers the four road DC voltage loops that integrated system is led to from straight-flow system respectively in S2, and what is gathered respectively is
Main line and feeder line two-way.
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| CN201710545319.6A CN107230966A (en) | 2017-07-06 | 2017-07-06 | Traction substation direct current dead electricity emergency protection system and method |
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| CN201710545319.6A CN107230966A (en) | 2017-07-06 | 2017-07-06 | Traction substation direct current dead electricity emergency protection system and method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201750204U (en) * | 2010-07-20 | 2011-02-16 | 重庆市电力公司电网检修分公司 | Direct current double-power-supply intelligent switching device |
| CN104079066A (en) * | 2013-10-30 | 2014-10-01 | 中国南方电网有限责任公司 | Method for judging disappearance of secondary direct-current power supply of far-end transformer substation |
| CN104134990A (en) * | 2014-08-14 | 2014-11-05 | 惠州市新科华实业有限公司 | Emergency power supply short-circuit preventing protective system |
| CN106451749A (en) * | 2016-11-21 | 2017-02-22 | 铁道第三勘察设计院集团有限公司 | Emergency protection device and method under malfunctioning condition of traction substation control protection system |
-
2017
- 2017-07-06 CN CN201710545319.6A patent/CN107230966A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201750204U (en) * | 2010-07-20 | 2011-02-16 | 重庆市电力公司电网检修分公司 | Direct current double-power-supply intelligent switching device |
| CN104079066A (en) * | 2013-10-30 | 2014-10-01 | 中国南方电网有限责任公司 | Method for judging disappearance of secondary direct-current power supply of far-end transformer substation |
| CN104134990A (en) * | 2014-08-14 | 2014-11-05 | 惠州市新科华实业有限公司 | Emergency power supply short-circuit preventing protective system |
| CN106451749A (en) * | 2016-11-21 | 2017-02-22 | 铁道第三勘察设计院集团有限公司 | Emergency protection device and method under malfunctioning condition of traction substation control protection system |
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Application publication date: 20171003 |