CN105070157B - A kind of feeder automation simulation training system - Google Patents
A kind of feeder automation simulation training system Download PDFInfo
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- CN105070157B CN105070157B CN201510418333.0A CN201510418333A CN105070157B CN 105070157 B CN105070157 B CN 105070157B CN 201510418333 A CN201510418333 A CN 201510418333A CN 105070157 B CN105070157 B CN 105070157B
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Abstract
The present invention provides a kind of feeder automation simulation training system,Including distribution main website,EPON communication networks,Distribution terminal and feeder line rack etc.,The distribution main website is provided with analogue system microcomputer,Analogue system service terminal software is provided with analogue system microcomputer,Distribution SCADA,The analogue system service terminal software includes feeder fault simulation software and two-dimensional virtual feeder line tentative module,The two-dimensional virtual feeder line tentative module includes pseudo operation study module and feeder line operating operation test module,The electrical power distribution automatization system component that the present invention disperses geographic area is intensive,Rack low pressure,Form succinct,It is apparent,A variety of feeder automation modes can be carried out to debug,Experiment and training,Optimize power distribution automation operation and maintenance training on operation and Assessment,Reduce operation,Experiment and the danger of examination process,Improve the specific aim of power distribution automation engineering training.
Description
Technical field
The present invention relates to a kind of medium-voltage distribution automation simulation training device, specifically a kind of corresponding 6kV, 10kV,
The simulation training system of 20kV, 35kV grade distribution feeder automation.
Background technology
With the quickening of Urbanization in China and the raising of national material and cultural life, the reliability of supply of electric power
It is required that higher and higher, the power supply reliability of China's urban distribution network is just developed from 99.9% to 99.99%.6kV, 10kV, 35kV grade
The feeder automation of medium voltage distribution network is promoted rapid, and feeder automation circuit constantly lengthens, EPON system and distribution terminal it is big
Amount application, brings increasing substantially for maintenance work amoun.Meanwhile electrical power distribution automatization system be related to Automation of Electric Systems, after
The specialties such as electric protection, the communication technology, computer technology, it is desirable to which operation maintenance personnel knowledge and skills face is wider, single professional
Learning cycle is grown, and production system is difficult to realize training property frequent operation, is provided extensively for the application of feeder automation analogue system
General space.
The content of the invention
The actual each part geographical distribution of electrical power distribution automatization system disperses, distribution main website, communication, detection, distribution
Net grid structure is huge, and intuitive is not strong, and distribution engineering once puts into operation, and power supply reliability requires high, O＆M checking experiment
Time is short, it is difficult to meets training request.The present invention is in order to overcome drawbacks described above, there is provided a kind of structure is concise, and complete function, makes
With device that is convenient, being emulated to distribution feeder automation operation.
The technical solution adopted by the present invention is：
A kind of feeder automation simulation training system, the distribution main website is provided with analogue system microcomputer, in analogue system
Analogue system service terminal software, distribution SCADA are provided with microcomputer（Distribution Supervisory Control and
Data Acquisition, abbreviation distribution SCADA）, the analogue system service terminal software include feeder fault simulation software with
Two-dimensional virtual feeder line tentative module, the two-dimensional virtual feeder line tentative module include pseudo operation study module and feeder line operation examination
Test module；The EPON communication networks include optical line terminal (OLT, the Optical Line of point-to-multipoint structure
Terminal), optical network unit (ONU, Optical Network Unit) and passive optical splitters (POS, Passive
Optical Splitter), Optical attenuator, tail optical fiber composition；The distribution terminal includes data acquisition module, data transfer mould
Block, control function module, feeder automation module, maintenance module, local function module；It is female that the feeder line rack includes outlet
Line, outlet switch, feeder switch, interconnection switch, low-voltage cable, the emulation looped network of overhead transmission line composition.
The distribution SCADA of the distribution main website, it is real through the EPON communication networks, distribution terminal by main wiring diagram
The now remote signalling to feeder line rack, remote control, remote measurement etc. " three is distant " function；By setting feeder line rack busbar, electric power in main wiring diagram
The failures such as cable, the single-phase earthing of overhead transmission line, two phase ground, phase fault, realize feeder automation it is manual, semi-automatic,
Auto-action, completes fault location, isolation, restores electricity to non-faulting region.
The EPON communication network modes of connection, by the optical network unit of the optical line terminal OLT of network side, user side
ONU, middle Optical Distribution Network ODN, optical module, tail optical fiber and adjustable Optical attenuator composition；Optical fiber is realized by tail optical fiber, attenuator
The setting of the failures such as link fibre core damage.
The distribution terminal is line feed terminals（Feeder Terminal Unit, FTU）, the exchange input of its power supply,
AC220V；Line feed terminals emulate outlet switch, feeder switch, interconnection switch of looped network etc. with EPON communication networks and feeder line and coordinate
Use.
The outlet is Three-phase five-wire exchange input, and AC380V, simulates 10kV (6kV, 20kV, 35kV) medium voltage distribution network,
Including mimic-disconnecting switch, current transformer, zero sequence current mutual inductor and on off state display instruction etc., telemechanical switching, load
Smooth adjustment.
By taking neutral non-effective grounding power distribution network as an example, medelling is carried out for singlephase earth fault and phase fault
Processing, certain phase load is become to turn to by 100W connects zero curve through 15.2VAR, and the rise of remaining two-phase voltage is line voltage, is considered as power distribution network
Overhead transmission line or power cable single-line to ground fault；The load of certain two-phase (or three-phase) is uprushed as 300W by 100W at the same time, depending on
For electric distribution network overhead wire or three-phase system bag power cable phase fault.
The feeder automation simulation training system includes analogue system microcomputer, feeder line rack；Analogue system microcomputer is built-in
It is loaded with distribution Master Station Software：Analogue system service terminal software, distribution SCADA, the analogue system service terminal software include feeder line
Fault simulation software and two-dimensional virtual feeder line tentative module, the two-dimensional virtual feeder line tentative module include pseudo operation study mould
Block and feeder line operating operation test module；
The feeder line rack includes outlet bus, outlet switch, feeder switch, interconnection switch, low-voltage cable, overhead transmission line
The emulation looped network of composition；
Distribution terminal FTU is connected with by communication network with analogue system microcomputer；
The distribution terminal FTU includes data acquisition module, data transmission module, control function module, feeder automation
Module, maintenance module, local function module；
The communication network uses EPON communication networks；The port of analogue system microcomputer connects with EPON communication networks
Connect, the other end of EPON communication networks connection is connected with distribution terminal；Realize distribution Master Station Software communication system and data acquisition
Terminal communicates；
Optical line terminal OLT of the EPON communication networks including point-to-multipoint structure, dispersion compensation optical module, optical-fiber network
Unit ONU, passive optical splitter ODN, Optical attenuator, and tail optical fiber composition；
Optical cable is simulated with tail optical fiber, along the primary connection laying of emulation looped network, is connected to distribution terminal；Set with power distribution network simulation
It is standby：Outlet bus, outlet switch, feeder switch, interconnection switch are used cooperatively, real by communication network and distribution master station communication
Now to feeder switch, the operation monitoring of interconnection switch, fault detect, remote control on outlet switch, simulation column；
Distribution terminal FTU accesses EPON in a manner of TCP/IP, and the ONU equipment of each on-pole switch possesses 10/100M ports,
Support ICP/IP protocol, configure an IP address, realize the end-to-end company of power distribution automation main station system and distribution terminal FTU
Connect；Every optical cable link uses star-connection mode, and optical line terminal OLT equipment realizes optical port to the optical cable link of multiple directions
Convergence；
A kind of feeder automation emulation training method：
A, according to distribution network figure, carry out graphic plotting in main website and improve wiring diagram, be stored as graphic file；
Image editors are opened, then open graphic file, pel is safeguarded in modification, and preserves pel, loads pel；
B, pel CIM model configures：
Using equipment pel editor, successively to voltage class, busbar, measuring equipment, observing and controlling in the distribution network figure of drafting
Setting, switch, disconnecting link, transformer, combination pixel, operating mode pel are configured；Two power supply points are defined, validating topology
The integrality of pel configuration, safeguards whole installation.
A kind of feeder automation emulation training method, it is characterized in that：
EPON communication systems are built：
OLT, each ONU and optical splitter are purchased on experimental bench, each equipment connects power supply, wouldn't be powered；
By 1:The uplink fibre of 2 optical splitters is connected to any PON mouthfuls of OLT, and downlink fibre is connected to next group 1:2 optical splitters with
Any PON mouthfuls of one group of ONU, this group of ONU are connected to one group of FTU, above-mentioned second group 1:The fine connection of 2 optical splitter downlinks and above-mentioned phase
Together, topology network architecture of handing in hand is formed；
Distribution Master Station Software is operated, by EPON network transmission control instructions, at main website, FTU, manipulation power distribution network is once
System, observes main wiring diagram busbar and line voltage distribution, electric current in main website, and the position instruction of outlet switch, after switch changed position
Electrical quantity, switching value change, verify " three is distant " function；Realized by the impedance of switching feeder line and user's simulation box；
First and second system wiring of power distribution network
Inputted from the three-phase alternating current of both sides incoming power 1, power supply 2, voltage gradation is simulated with 380V, with power cable, low
Pressure insulated conductor is sequentially connected with the A.C. contactor QF of analog line breaker, on-load switch and interconnection switch1、Q11、Q12、
QL、QF2、Q21、Q22；The load of outlet and branched line with concentrated in user's simulation box resistance box, capacitor group simulate；
Line voltage, phase current to circuit sampling is without voltage transformer, current transformer, directly from busbar, trunk
Line and the corresponding monitoring positions of each FTU, draw the voltage for being connected to line feed terminals, current terminal；
Power supply 1, the zero sequence current mutual inductor of 2 outlet of power supply are installed at inlet wire busbar；Line-breaker, on-load switch
Quantity of state is extracted from main contacts, the auxiliary contact of A.C. contactor, is sent to the on off state terminal of line feed terminals.
A kind of feeder automation algorithm simulating mode, feeder line rack simulation system, both sides inlet wire input for three-phase alternating current；Match somebody with somebody
Power grid overhead transmission line and power cable are simulated with primary cable；Line-breaker, on-load switch are simulated with A.C. contactor；
The load of outlet and branched line with concentrate resistance box, capacitor group simulate；Including with Types Below：
A, centralized intelligence type
1 outlet of power supply belongs to open loop operation power distribution network, breaks down at F, and QF1, Q11 flow through fault current, and Q12 does not flow
Fault current is crossed, algorithm failure judgement occurs in Q11, Q12Between, QF is disconnected automatically1Afterwards, Q is disconnected11And Q12, then close QF1,
Complete restoring electricity for Fault Isolation and healthy sections；
If power distribution network operates in the cyclization state of QL closures, break down at F points, algorithm is according to the power side after failure
To progress fault location, the power direction at the switch of trouble point both sides is all pointed to inside region；, can be with after judging F point failures
After automatic disconnection QF1, QL, Q11 and Q12 is disconnected, then closes QF11, QL, the recovery for completing Fault Isolation and healthy sections supplies
Electricity；
B, automatic Switching mutual cooperation type
Coordinate including automatic circuit and voltage-time type sectionaliser fitting-type, automatic circuit and overcurrent step-by-step counting type sectionaliser
Type, overlap quick-break type, automatic circuit and voltage-current mode sectionaliser fitting-type, automatic circuit and automatic circuit fitting-type, distributed intelligence
Rapidly self-healing type；
The realization of Digital Simulation, sets up " feeder automation emulation " menu in distribution main website, passes through click in engineer station
Distribution Network Frame diverse location, sets trouble point and fault type, is published to each trained position, is disposed by student；
C, circuit stops power transmission operation
The power transmission of 1 outlet of power supply：The control mode switch of each FTU is placed in " remote control " position, main website can be passed through
Straighforward operation power transmission, sequentially closes Q12, Q11 switch, finally closes QF1 switches, observation verification line voltage distribution, electric current and each
The displays such as the position of the switch are correct；
The control mode of each FTU can also be switched and be placed in " on the spot " position, on the operation panel of FTU, sequentially pressed
Dynamic " conjunction " button, closes Q12, Q11 switch, finally closes QF1 switches, observation verification line voltage distribution, electric current and each switch position
It is correct the display such as to put；
The power failure of 1 outlet of power supply：The control mode switch of each FTU is placed in " remote control " position, main website can be passed through
Straighforward operation have a power failure, first disconnect QF1 switch, then sequentially disconnect Q11, Q12 switch, observation verification line voltage distribution, electric current and
The displays such as each position of the switch are correct；
The control mode of each FTU can also be switched and be placed in " on the spot " position, on the operation panel of FTU, sequentially pressed
Dynamic " disconnected " button, disconnects QF1 switches first, then sequentially disconnects Q11, Q12 switch, observation verification line voltage distribution, electric current and respectively
The displays such as a position of the switch are correct.
The transmission or not operation of 2 outlet of power supply is identical with transmission or not operating method, the step of 1 outlet of power supply；
The operation of " cyclization " load transfer：
By 1 outlet QF1 of power supply switch scheduled overhaul exemplified by, main website implement load transfer the step of：
Check that cyclization point QL both sides three-phase voltage phase sequence is consistent；It is identical to measure cyclization point QL both sides three-phase voltage phase；Inspection
Look into the relay protection of the system, automatics sets and adapts to Electromagnetic coupling mode；
Close QL breakers；Disconnect QF1Switch；Disconnect Q11Switch, observation verification Q12Both sides branch line payload is switched,
And the display such as line voltage distribution, electric current and each position of the switch is correct.
D, the mathematical model of electrical test process
The mathematical model of power distribution network virtual test process is modeled in the environment of MATLAB systems.In the present invention,
The corresponding mathematical model of each experiment, each model are made of multiple function modules；Failure is arranged on engineer station's progress,
Each test group is sent to after being provided with；
E, EPON system failure library module:
According to the data from virtual test and selected pilot project, the event in automatic decision EPON system fault database
Hinder type and trouble point；The result of judgement send " EPON management softwares " module, is shown on communication system figure；
Electrical secondary system failure library module：According to the data from virtual test and selected pilot project, automatic decision
Fault type and trouble point in electrical secondary system fault database.The result of judgement send " Software of Master Station " module, is shown in main website
On system diagram.There are its corresponding module in different type, trouble point, including with lower module:Power distribution network voltage transformer two everywhere
Secondary wiring polarity mistake, secondary wiring of current mutual inductor incorrect polarity, breaker, block switch, network interconnecting circuit control loop
Open circuit and position signal wrong etc.；
Primary system failure library module：According to the data from virtual test and selected pilot project, automatic decision
Fault type and trouble point in primary system fault database.The result of judgement send " Software of Master Station " module, and FA starts, into
Row Fault Isolation and non-faulting region restore electricity, and correlated process and status display are on main station system figure.Different type therefore
Barrier point has its corresponding module, including with lower module:Power distribution network shown in F points single-phase earthing, double earthfault, phase everywhere
Between short trouble, and the corresponding transient fault of each fault type, permanent fault.
The beneficial effect that the present invention is reached:
The feeder automation analogue system based on EPON of the invention, is combined with physical simulation by establishing Digital Simulation
System, formation and engineering real system appearance and the on all four simulation model of function, are established and engineering test, attended operation ring
The completely the same HWIL simulation in border（Hardware in the Loop Simulation, HLS）, user passes through interactive operation
Mode is include main website modeling, communication system is built, electrical secondary system wiring, feeder automation algorithm is set, circuit stops sending
The operation such as electrically operated, failure setting and exclusion, safeguard, pilot project, so as to the feeder automation system of complete simulation reality
O＆M of uniting operates, and reduces operation and the danger of training process, improves and examines specific aim.
The present invention provides a kind of advanced training platform not just for the technical staff for being engaged in power distribution automation O＆M, also
It can be widely applied to the training of other related work posts such as distribution line, substation equipment maintenance and repair.
Brief description of the drawings
Fig. 1 is the power distribution network Single-ring network feed line automatization system figure of the present invention；
Fig. 2 is the EPON system structure example of the present invention；
Fig. 3 is EPON system hierarchical structure of the present invention；
Fig. 4 is the EPON networking modes based on multistage light splitting；
Fig. 5 is virtual test mathematical model.
Embodiment
In conjunction with attached drawing the invention will be further described
Fig. 1 is a kind of embodiment of the present invention, the technical scheme is that：A kind of feeder automation emulation training system
System, including the physical simulation such as distribution main website, EPON communication networks, distribution terminal and feeder line rack analogue system and two-dimensional virtual are presented
Thread test digital simulation module forms.
Analogue system service terminal software, distribution SCADA are provided with analogue system microcomputer（Distribution
Supervisory Control and Data Acquisition, abbreviation distribution SCADA）, the analogue system server-side is soft
Part includes feeder fault simulation software and two-dimensional virtual feeder line tentative module, and the two-dimensional virtual feeder line tentative module includes virtual
Operate study module and feeder line operating operation test module.
Distribution main website and distribution terminal etc. use EPON communication networks.A kind of feeder automation simulation training system, it is described
Distribution main website is provided with analogue system microcomputer, and analogue system service terminal software, distribution SCADA are provided with analogue system microcomputer
（Distribution Supervisory Control and Data Acquisition, abbreviation distribution SCADA）, it is described imitative
True server of the system software includes feeder fault simulation software and two-dimensional virtual feeder line tentative module, the two-dimensional virtual feeder line examination
Testing module includes pseudo operation study module and feeder line operating operation test module；The EPON communication networks include point-to-multipoint structure
Optical line terminal (OLT, Optical Line Terminal), optical network unit (ONU, Optical Network Unit)
With passive optical splitters (POS, Passive Optical Splitter), Optical attenuator, tail optical fiber composition；The distribution terminal includes
Data acquisition module, data transmission module, control function module, feeder automation module, maintenance module, local function module；
The feeder line rack forms imitative including outlet bus, outlet switch, feeder switch, interconnection switch, low-voltage cable, overhead transmission line
True looped network.
The distribution SCADA of the distribution main website, it is real through the EPON communication networks, distribution terminal by main wiring diagram
The now remote signalling to feeder line rack, remote control, remote measurement etc. " three is distant " function；By setting feeder line rack busbar, electric power in main wiring diagram
The failures such as cable, the single-phase earthing of overhead transmission line, two phase ground, phase fault, realize feeder automation it is manual, semi-automatic,
Auto-action, completes fault location, isolation, restores electricity to non-faulting region.
The EPON communication network modes of connection, by the optical network unit of the optical line terminal OLT of network side, user side
ONU, middle Optical Distribution Network ODN, optical module, tail optical fiber and adjustable Optical attenuator composition；Optical fiber is realized by tail optical fiber, attenuator
The setting of the failures such as link fibre core damage.
The distribution terminal is line feed terminals（Feeder Terminal Unit, FTU）, the exchange input of its power supply,
AC220V；Line feed terminals emulate outlet switch, feeder switch, interconnection switch of looped network etc. with EPON communication networks and feeder line and coordinate
Use.
The outlet is Three-phase five-wire exchange input, and AC380V, simulates 10kV (6kV, 20kV, 35kV) medium voltage distribution network,
Including mimic-disconnecting switch, current transformer, zero sequence current mutual inductor and on off state display instruction etc., telemechanical switching, load
Smooth adjustment.
By taking neutral non-effective grounding power distribution network as an example, medelling is carried out for singlephase earth fault and phase fault
Processing, certain phase load is become to turn to by 100W connects zero curve through 15.2VAR, and the rise of remaining two-phase voltage is line voltage, is considered as power distribution network
Overhead transmission line or power cable single-line to ground fault；The load of certain two-phase (or three-phase) is uprushed as 300W by 100W at the same time, depending on
For electric distribution network overhead wire or three-phase system bag power cable phase fault.
A kind of feeder automation simulation training system, including distribution main website, EPON communication networks, distribution terminal and feeder network
Frame analogue system etc. forms.
The distribution main website is installed on analogue system microcomputer, and analogue system server-side is additionally provided with analogue system microcomputer
Software.Distribution main website is made of operating system, support platform software and power distribution network application software, and function includes database and artwork
The public service functions such as management, and the function such as the processing of distribution SCADA, feeder fault, power distribution network self-healing.The analogue system clothes
End software be engaged in as the advanced application function of main website, including feeder fault simulation software and two-dimensional virtual feeder line tentative module, it is described
Two-dimensional virtual feeder line tentative module includes pseudo operation study module（Remote control result does not export）With feeder line operating operation test module
（The input application of " three is distant " function）.
Analogue system microcomputer is provided with communication network management software, communication interface and the EPON communication network links of microcomputer.Main website
Communicated by communication system with data collection station, realize the monitoring of distribution network operation, operation scheduling, operation and maintenance.
The EPON communication networks include the optical line terminal OLT of point-to-multipoint structure, dispersion compensation optical module, optical-fiber network
Unit ONU, passive optical splitter ODN, Optical attenuator, and the composition such as tail optical fiber, for data collection station and power distribution automation
Master station communication.Equipment management, including parameter configuration, operational monitoring etc. are carried out to OLT by communication network management software.With tail optical fiber mould
Intend optical cable, laid along simulation power distribution network primary connection, link to the distribution terminal FTU of on-pole switch.Every cable link uses
Star-connection mode, OLT device realize the cable link of multiple directions optical port converges, and branched network uses EPON technologies, any
One terminal equipment failure is all without influence other-end equipment so that the failure rate of equipment is low, easily safeguards.
The distribution terminal FTU, is used cooperatively with power distribution network analog machine, passes through communication network and power distribution automation main station
Communication, is realized to feeder switch, the operation monitoring of interconnection switch, fault detect, remote control on outlet switch, simulation column；Remove
It can be carried out according to In situ Measurement information outside protection control operation, also support that peer switch is real between terminal installation on interdependent node
When monitoring data, complete the advanced application functions of intelligent distribution network such as line fault rapidly self-healing, distributed generation resource cutting-in control.Match somebody with somebody
Electric terminals access EPON in a manner of TCP/IP, and the ONU equipment of each on-pole switch possesses 10/100M ports, supports TCP/IP associations
View, configures an IP address, realizes the end to end connection of power distribution automation main station system and distribution terminal FTU.Match somebody with somebody with traditional
Electric automation communication system is compared, and is not provided with middle substation, each FTU terminals separately as a substation, main website and substation
Communication uses 104 stipulations, simplifies electrical power distribution automatization system structure, improves the ornamental of analogue system.
Feeder line rack simulation system, both sides inlet wire be three-phase alternating current input, with 380V simulation 10kV (6 kV, 20kV,
The medium voltage distribution network such as 35kV)；Electric distribution network overhead wire and power cable are simulated with primary cable；Line-breaker, load are opened
Simulated with A.C. contactor pass；The load of outlet and branched line with concentrate resistance box, capacitor group simulate.Circuit is sampled
Line voltage, phase current without voltage transformer, current transformer, be directly accessed voltage, the current terminal of line feed terminals, zero
Sequence current transformer is installed at inlet wire busbar.Line-breaker, on-load switch quantity of state from the main contacts of A.C. contactor,
Auxiliary contact extract, and send to the on off state terminal of line feed terminals.
[1] the main website modeling of virtual medium voltage distribution network
1.1 power distribution network graphic plottings and editor：
Start distribution Master Station Software in PC machine.
According to given distribution network figure as shown in Figure 1, graphic plotting is carried out in main website：It is familiar with main website median surface forms knot
Structure is distributed, every editting function, the application of toolbar, picture, subgraph, the pel of embedded electric system primary connection figure, is supplied
Quoted during drawing, so as to improve flexibility and the speed of drawing；Utilize word pel, image pel, connection pel, terminal figure
Member, form pel, electric power group member, region pel, measurement pel, measurement group picture member etc., improve wiring diagram, and are stored as figure text
Part.
Image editors are opened, then open graphic file, pel is safeguarded in modification, and preserves pel, loads pel.
1.2 pel CIM model configure：
Using equipment pel editting function, successively to voltage class in the distribution network figure of drafting, busbar, measuring equipment,
Observing and controlling setting, switch, disconnecting link, transformer, combination pixel, operating mode pel etc. are configured.Two power supply points are defined, with
The integrality of validating topology pel configuration, safeguards whole installation.
[2] EPON communication systems are built
2.1 purchase 1 OLT, each ONU and 1 on experimental bench：2 optical splitters, 1:4 optical splitters etc., each equipment connection electricity
Source, wouldn't be powered.
2.2 by 1:The uplink fibre of 2 optical splitters is connected to any PON mouthfuls of OLT, and downlink fibre is connected to next group 1:2 light splitting
Any PON mouthfuls of device and one group of ONU, this group of ONU is connected to one group of FTU, as shown in Fig. 3 or Fig. 4.Above-mentioned second group 1:2 light splitting
The fine connection of device downlink is same as described above, can form topology network architecture hand in hand corresponding with Fig. 1.
1:The connection with OLT of 4 optical splitters, can individually be monitored experiment.
2.3 all optical communication equipments power on, and are powered after five minutes, observe the OLT device indicator light shown in figure below, bag
It is normal to include the instructions such as power supply indicator, run indicator, PON connection lamps.
PER:Green is always on（Normally）
RUN:Green quick flashing（In startup）, slow flash（Normal operation）
PONn：Green is always on（Connection）
GEn：Green is always on（Connection）
ALM：Red is gone out（Normally）, it is bright（Alarm）
2.4 observation ONU equipment states：
POWER:Green is always on（Normally）
PONn：Green is always on（Connection）
LINK：Green is always on（Connection）
ALARM：Red is gone out（Normally）, it is bright（Alarm）
2.5 webmasters are tested：By webmaster PC machine（Shared with main website PC machine）Grid line be connected to the MN ports of OLT, set
PC machine port address 192.168.1.20.Starting webmastering software, default user name and password may be configured as admin, admin, into
Row network management configures and operation：
Create OLT；
Configuration preserves；
OLT configuration managements；
ONU authorization identifyings；
Alarm management；
Performance management；
Safety management.
To commonly use monitoring method, confirmation is monitored including Ping, Telnet etc..
2.6 configuration webmastering softwares ensure OLT PON ports and ONU the network port in same VLAN.
Link after the startup of 2.7 distribution main websites：PC machine port is connected to any GE ports of OLT.Distribution Master Station Software
Same microcomputer is used with EPON webmastering softwares, double netcard or dual network address can be configured on computers.
Each FTU data networks winding thread is connected to the network port of OUN by 2.8, and is powered.
The load of feeder line and simulation load system is placed in minimum position by 2.9, is connected to FTU, and be powered.
02.10 operation distribution Master Station Software, by EPON network transmission control instructions, at main website, FTU, manipulates distribution
Net primary system, observes main wiring diagram busbar and line voltage distribution, electric current in main website, and the position instruction of outlet switch, switch
Electrical quantity, switching value change after displacement, verify " three is distant " function.Primary system goes out the adjustment of specific electric load, passes through switching feeder line
And the impedance of user's simulation box is realized.
2.11 PON power meters are tested：Tested node is disconnected, wherein will be connected to PON power meters in side, then connected with tail optical fiber
PON power meters and opposite side are connect, port " OLT/Video " the connection OLT directions of PON power meters, port " ONT " is connected to ONU
Direction.Start PON power meters, observe and record measurement data.
ODN networks often use measuring node fibre distribution frame ODF（Optical Distribution Frame, ODF）For
The Cheng Duan of local side backbone optical cable and distribution in optical fiber telecommunications system, it is convenient to realize the connection, distribution and scheduling of fibre circuit.
2.12 intelligent attenuator experiments：On the light-path of PON power meters test, a certain node is selected, with reference to upper figure PON
Power meter connection method, connects intelligent Optical attenuator.Startup power supply, adjusts the parameters such as the stepping of attenuator attenuation, attenuation numerical value, declines
Consumption journey is 0 ~ 64db.Observe and record PON power meter measurement data, while observe the equipment indicating lamp of OLT, ONU, pass through
EPON webmastering softwares, check equipment operation alarm status and performance parameter.
Tested by attenuator, test the luminous sensitivity of the PON interface modules of OLT, ONU, and nominally count with explanation equipment
According to being compared.
Distribution main station system software is recalled, attempts to carry out experimental implementation.
[3] first and second system wiring of power distribution network
Fig. 1 is one of embodiment of power distribution network connection.Inputted from the three-phase alternating current of both sides incoming power 1, power supply 2, with
380V simulates 10kV (6kV, 20kV, 35kV) voltage gradation, is sequentially connected with analog line with power cable, low-voltage insulation conducting wire and breaks
The A.C. contactor QF of road device, on-load switch and interconnection switch1、Q11、Q12、QL、QF2、Q21、Q22.Outlet and branched line
Load with concentrated in user's simulation box resistance box, capacitor group simulate.
Line voltage, phase current to circuit sampling is without voltage transformer, current transformer, directly from busbar, trunk
Line and the corresponding monitoring positions of each FTU, draw the voltage for being connected to line feed terminals, current terminal.Power supply 1, the zero sequence of 2 outlet of power supply
Current transformer is installed at inlet wire busbar.Line-breaker, the quantity of state of on-load switch are from the main contacts of A.C. contactor, auxiliary
Help contact to extract, send to the on off state terminal of line feed terminals.
[4] feeder automation algorithm simulating
This emulation can be realized in the physical simulation system of the present invention with Digital Simulation System respectively.
4.1 centralized intelligence types
Power distribution network as shown in Figure 1,1 outlet of power supply belong to open loop operation power distribution network, break down at F, QF1, Q11 flow through
Fault current, Q12 do not flow through fault current, and algorithm failure judgement occurs in Q11, Q12Between, QF is disconnected automatically1Afterwards, Q is disconnected11
And Q12, then close QF1, complete restoring electricity for Fault Isolation and healthy sections.
Power distribution network as shown in Figure 1, if power distribution network operates in the cyclization state of QL closures, breaks down, algorithm is pressed at F points
According to the power direction progress fault location after failure, the power direction at the switch of trouble point both sides is all pointed to inside region.Sentence
After disconnected F point failures, after QF1, QL can be disconnected automatically, disconnect Q11 and Q12, then close QF11, QL, complete Fault Isolation with
Healthy sections restore electricity.
4.2 automatic Switching mutual cooperation types
The type specific embodiment is more, including automatic circuit and voltage-time type sectionaliser fitting-type, automatic circuit and overcurrent
Step-by-step counting type sectionaliser fitting-type, overlap quick-break type, automatic circuit and voltage-current mode sectionaliser fitting-type, automatic circuit with again
Clutch fitting-type, distributed intelligence rapidly self-healing type etc..
The realization of Digital Simulation, sets up " feeder automation emulation " menu in distribution main website, passes through click in engineer station
Distribution Network Frame diverse location, sets trouble point and fault type, is published to each trained position, is disposed by student.
[5] circuit stops power transmission operation
The power transmission of 1 outlet of power supply：The control mode switch of each FTU is placed in " remote control " position, main website can be passed through
Straighforward operation power transmission, sequentially closes Q12, Q11 switch, finally closes QF1 switches, observation verification line voltage distribution, electric current and each
The displays such as the position of the switch are correct.
The control mode of each FTU can also be switched and be placed in " on the spot " position, on the operation panel of FTU, sequentially pressed
Dynamic " conjunction " button, closes Q12, Q11 switch, finally closes QF1 switches, observation verification line voltage distribution, electric current and each switch position
It is correct the display such as to put.
The power failure of 1 outlet of power supply：The control mode switch of each FTU is placed in " remote control " position, main website can be passed through
Straighforward operation have a power failure, first disconnect QF1 switch, then sequentially disconnect Q11, Q12 switch, observation verification line voltage distribution, electric current and
The displays such as each position of the switch are correct.
The control mode of each FTU can also be switched and be placed in " on the spot " position, on the operation panel of FTU, sequentially pressed
Dynamic " disconnected " button, disconnects QF1 switches first, then sequentially disconnects Q11, Q12 switch, observation verification line voltage distribution, electric current and respectively
The displays such as a position of the switch are correct.
The transmission or not operation of 2 outlet of power supply is identical with transmission or not operating method, the step of 1 outlet of power supply.
The operation of " cyclization " load transfer：
By 1 outlet QF1 of power supply switch scheduled overhaul exemplified by, main website implement load transfer the step of：
Check that cyclization point QL both sides three-phase voltage phase sequence is consistent；It is identical to measure cyclization point QL both sides three-phase voltage phase；Inspection
Look into the relay protection of the system, automatics sets and adapts to Electromagnetic coupling mode.
Close QL breakers；Disconnect QF1Switch；Disconnect Q11Switch, observation verification Q12Both sides branch line payload is switched,
And the display such as line voltage distribution, electric current and each position of the switch is correct.
[6] mathematical model of electrical test process
The mathematical model of power distribution network virtual test process is modeled in the environment of MATLAB systems.In the present invention,
The corresponding mathematical model of each experiment, each model are made of multiple function modules.The structure of model is as shown in Figure 5.
Failure is arranged on engineer station's progress, and each test group is sent to after being provided with（Platform）.
EPON system failure library module:According to the data from virtual test and selected pilot project, automatic decision
Fault type and trouble point in EPON system fault database.The result of judgement send " EPON management softwares " module, is shown in communication
On system diagram.
Electrical secondary system failure library module：According to the data from virtual test and selected pilot project, automatic decision
Fault type and trouble point in electrical secondary system fault database.The result of judgement send " Software of Master Station " module, is shown in main website
On system diagram.There are its corresponding module in different type, trouble point, including with lower module:Power distribution network voltage transformer two everywhere
Secondary wiring polarity mistake, secondary wiring of current mutual inductor incorrect polarity, breaker, block switch, network interconnecting circuit control loop
Open circuit and position signal wrong etc..
Primary system failure library module：According to the data from virtual test and selected pilot project, automatic decision
Fault type and trouble point in primary system fault database.The result of judgement send " Software of Master Station " module, and FA starts, into
Row Fault Isolation and non-faulting region restore electricity, and correlated process and status display are on main station system figure.Different type therefore
Barrier point has its corresponding module, including with lower module:Power distribution network as shown in F points in Fig. 1 single-phase earthing, two phase ground everywhere
Failure, phase fault, and the corresponding transient fault of each fault type, permanent fault etc..
Physical simulation method is as follows：10kV electric power systems are emulated with 0.38kV Three-phase five-wires ac power supply system；With exchange
Contactor replaces panel switches, its main contacts, auxiliary contact represent the fracture and on off state of panel switches；Simplify and fall TA, TV,
Voltage, the electric current of primary circuit are directly accessed the outlet point protection of power supply and each FTU, are realized in the parameter configuration of FTU
Transformation ratio, transformer ratio and Preservation tactics；The load of circuit and each branch line, is replaced with three-phase resistance, capacitive load case, single
3 × 100W of group, 3 × 15.2VAR.
Physical simulation Preservation tactics：By taking neutral non-effective grounding power distribution network as an example, for singlephase earth fault with it is alternate
Short trouble carries out medelling processing, certain phase load is become to turn to by 100W connects zero curve through 15.2VAR, and the rise of remaining two-phase voltage is
Line voltage, is considered as electric distribution network overhead wire or power cable single-line to ground fault；Certain two phase load at the same time by 100W uprush for
300W, is considered as electric distribution network overhead wire or three-phase system bag power cable phase fault.
Physical analogy operation test training module particular content includes:
Trouble point, fault type are identical with above virtual emulation.Difference is before testing first in specific trouble point
Certain fault type is set, then activation system, carries out observation analysis and processing.
1) test and exclusion of communication system failure
Test item:EPON system;
Use instrument:PON power meters
2) test and exclusion of electrical secondary system failure
Test item:Zero sequence current mutual inductor, FTU;
Use instrument:Universal meter
3) test and exclusion of primary system failure
Test item:Power cable, insulated conductor, A.C. contactor, grounding device, FTU;
Use instrument:Universal meter, clamp on amperemeter.
Claims (1)
1. a kind of feeder automation emulation training method, it is characterized in that, it includes：
（1）The main website modeling of virtual medium voltage distribution network：
A, according to distribution network figure, carry out graphic plotting in main website and improve wiring diagram, be stored as graphic file；
Image editors are opened, then open graphic file, pel is safeguarded in modification, and preserves pel, loads pel；
B, pel CIM model configures：Using equipment pel editor, successively to voltage class in the distribution network figure of drafting, busbar,
Measuring equipment, observing and controlling setting, switch, disconnecting link, transformer, combination pixel, operating mode pel are configured；Two power supply points are carried out
Definition, the integrality of validating topology pel configuration, safeguards whole installation；
（2）Ethernet passive optical network communication system is built：
Optical line terminal, each optical network unit and optical splitter are purchased on experimental bench, each equipment connects power supply, wouldn't be powered；
By 1:The uplink fibre of 2 optical splitters is connected to the Arbitrary Passive optical-fiber network mouth of optical line terminal, and downlink fibre is connected to next group
1:The Arbitrary Passive optical-fiber network mouth of 2 optical splitters and one group of optical network unit, this group of optical network unit are connected to one group of line feed terminals, on
State next group 1:The fine connection of 2 optical splitter downlinks is same as described above, forms topology network architecture of handing in hand；
Distribution Master Station Software is operated, control instruction is transmitted by ethernet passive optical network, at main website, line feed terminals, manipulation is matched somebody with somebody
Power grid primary system, observes main wiring diagram busbar and line voltage distribution, electric current in main website, and the position instruction of outlet switch, opens
The electrical quantity after displacement, switching value change are closed, verifies " three is distant " function；Primary system goes out the adjustment of specific electric load, is presented by switching
The impedance of line and user's simulation box is realized；
（3）First and second system wiring of power distribution network：
Inputted from the three-phase alternating current of both sides incoming power 1, power supply 2, voltage gradation is simulated with 380V, with power cable, low
Pressure insulated conductor is sequentially connected with the A.C. contactor of analog line breaker, on-load switch and interconnection switch；Outlet and branch
The load of circuit with concentrated in user's simulation box resistance box, capacitor group simulate；
Line voltage, phase current to circuit sampling without voltage transformer, current transformer, directly from busbar, backbone and
The corresponding monitoring position of each line feed terminals, draws the voltage for being connected to line feed terminals, current terminal；
Power supply 1, the zero sequence current mutual inductor of 2 outlet of power supply are installed at inlet wire busbar；The state of line-breaker, on-load switch
The main contacts from A.C. contactor, auxiliary contact extraction are measured, is sent to the on off state terminal of line feed terminals.
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| CN105894887B (en) * | 2016-06-30 | 2018-08-10 | 国网福建省电力有限公司 | A kind of power distribution network simulation training system and method |
| CN106227063A (en) * | 2016-08-30 | 2016-12-14 | 泉州维盾电气有限公司 | A kind of electrical network 10KV feeder fault analogue system controls device |
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