CN110299041A - A kind of Intelligent power distribution terminal and communication O&M integration practical training system and method - Google Patents

A kind of Intelligent power distribution terminal and communication O&M integration practical training system and method Download PDF

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Publication number
CN110299041A
CN110299041A CN201910458901.8A CN201910458901A CN110299041A CN 110299041 A CN110299041 A CN 110299041A CN 201910458901 A CN201910458901 A CN 201910458901A CN 110299041 A CN110299041 A CN 110299041A
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China
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switch
relay
terminal
distribution terminal
coil
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CN110299041B (en
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潘志远
李宏伟
郭方正
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Shandong Electric Power Technology Development Center Co Ltd
State Grid Corp of China SGCC
State Grid of China Technology College
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Shandong Electric Power Technology Development Center Co Ltd
State Grid Corp of China SGCC
State Grid of China Technology College
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Publication of CN110299041A publication Critical patent/CN110299041A/en
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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09BEDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B23/00Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
    • G09B23/06Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
    • G09B23/18Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism
    • G09B23/188Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism for motors; for generators; for power supplies; for power distribution
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09BEDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B9/00Simulators for teaching or training purposes

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Educational Technology (AREA)
  • Educational Administration (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Mathematical Optimization (AREA)
  • Computational Mathematics (AREA)
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  • Power Engineering (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)

Abstract

The invention discloses a kind of Intelligent power distribution terminal and communication O&M integration practical training system and method, analog realizes the chain interaction logic between breaker, earthing knife-switch, simulated implementation route most common failure, so that related operation maintenance personnel increases the ability of in-situ processing problem.The system includes at least one integrated training cabinet, integrated training cabinet includes cabinet body, is arranged in intracorporal at least four mimic-disconnecting switch of cabinet, distribution terminal unit, communication module and ancillary equipment, mimic-disconnecting switch is connect with distribution terminal unit, for the breaking-closing operating of mimic-disconnecting switch, opening and closing state and breaker energy storage, the chain operation of earthing knife-switch;Ancillary equipment is connect with distribution terminal unit, for controlling voltage, current value and the working condition of distribution terminal unit acquisition breaker;Ancillary equipment also passes through communication module and connect with other integrated training cabinets, master station communication, realize integrated training cabinet between and the information exchange between integrated training cabinet and main website.

Description

A kind of Intelligent power distribution terminal and communication O&M integration practical training system and method
Technical field
The disclosure designs power distribution network real training technical field, and in particular to a kind of Intelligent power distribution terminal and communication O&M integration Experience system and method.
Background technique
As the indispensable important component of electrical power distribution automatization system, power distribution automation intelligent terminal be mainly used for Power distribution automation main station provides the various parameters such as power distribution network operating condition and switch state, trend distribution;It is performed simultaneously under main website The order of hair is adjusted and controls to all kinds of distribution primary equipments, realizes that fault location, Fault Isolation and non-faulting region are fast The functions such as quick-recovery power supply.
For the normal operation for guaranteeing electrical power distribution automatization system, vast power distribution automation operation maintenance personnel need to be continuously improved in intelligence The ability to work of terminal debugging, O&M and malfunction elimination etc., it is not only it should be understood that the principle of all kinds of intelligent terminals, interior The rudimentary knowledge such as portion's structure, function realization, communication process, it is also necessary to skilled to grasp intelligent terminal wiring, main website and terminal joint The various technical skills such as debugging, malfunction elimination, new equipment access.Moreover, with Intelligent power distribution terminal quantity increase sharply and Function constantly improve promotion, needs to train the power distribution automation operation maintenance personnel for largely having actual operational capacity, training requirement It is huge and urgent.
Summary of the invention
In order to overcome the above-mentioned deficiencies of the prior art, present disclose provides a kind of Intelligent power distribution terminal and communication O&M one Change experience system and method, analog realizes the chain interaction logic between breaker, earthing knife-switch, the common event of simulated implementation route Barrier, so that related operation maintenance personnel increases the ability of in-situ processing problem.
In a first aspect, a kind of Intelligent power distribution terminal that the disclosure provides and the technical side for communicating O&M integration practical training system Case is:
A kind of Intelligent power distribution terminal and communication O&M integration practical training system, which includes at least one integrated training Cabinet, the integrated training cabinet include cabinet body, are arranged in intracorporal at least four mimic-disconnecting switch of cabinet, distribution terminal list Member, communication module and ancillary equipment, the mimic-disconnecting switch are connect with distribution terminal unit, the divide-shut brake for mimic-disconnecting switch Operation, opening and closing state and the chain operation of breaker energy storage, earthing knife-switch;The ancillary equipment is connect with distribution terminal unit, is used In voltage, current value and the working condition of control distribution terminal unit acquisition breaker;The ancillary equipment also passes through communication Module is connect with other integrated training cabinets, master station communication, realize integrated training cabinet between and integrated training machine Information exchange between cabinet and main website.
Further, the integrated training cabinet further includes being arranged in the intracorporal reaying protection test instrument of cabinet and transformation The power end of device, the transformer and mimic-disconnecting switch connects, for providing three-phase voltage to mimic-disconnecting switch;The relay is protected The Switch Three-Phase current terminal for protecting tester and mimic-disconnecting switch connects, for providing primary current to mimic-disconnecting switch.
Further, the mimic-disconnecting switch includes cabinet, at least four fault settings being arranged on case front panel Region, at least four terminal connection regions being arranged on cabinet rear panel, the relay protection instrument being arranged on cabinet rear panel input Wire area and the fault simulation circuit that cabinet inside is set.
Further, the fault setting region includes the switch breaking-closing operating mould with fault simulation circuit connection respectively Quasi- module, energy storage state analog module, earthing knife-switch on-off analog module and switch fault analog module;
The switch breaking-closing operating analog module includes the closing operation analog buttons and with instruction of opening the light of tape light The sub-switching operation analog buttons of opening the light of lamp;
The energy storage state analog module includes energy storage position signal lamp and energy storage state switch;
The earthing knife-switch on-off analog module includes earthing knife-switch position signal lamp and head-shaking switch;
The switch fault analog module is switched including at least four ship types.
Further, the terminal connection region includes switch input terminal, switch wire outlet terminal, Switch Three-Phase current terminal Son and switch remote signalling terminal;
One end of the switch input terminal is connected to the telemetering voltage terminal of distribution terminal unit, other end connecting fault Analog circuit;
One end connecting fault analog circuit of switch wire outlet terminal, the external FTU of the other end;
The telemetering current terminal of one end connection distribution terminal unit of the Switch Three-Phase current terminal or relay protection examination Test the current output terminal of instrument, other end connecting fault analog circuit;
One end of the switch remote signalling terminal connects distribution terminal unit, other end connecting fault analog circuit.
Further, the fault simulation circuit includes switch breaking-closing operating analog circuit, the simulation of the first primary circuit Circuit, the second primary circuit analog circuit, third primary circuit analog circuit and earthing knife-switch state simulation circuit;
The switch breaking-closing operating analog circuit includes the first relay and the second relay, first relay Normally-closed contact connects coil one end of the second relay, and coil one end of second relay connects head-shaking switch, and described the The coil other end of one relay, the coil other end of the second relay, the normally opened contact of the second relay, the second relay Normally-closed contact is separately connected switch remote signalling terminal.
Further, the earthing knife-switch state simulation circuit includes controller, photoelectrical coupler and the 6th relay, the light Electric coupler diode cathode connection controller output end, the photoelectrical coupler transistor emitter connection the 6th after Coil one end of electric appliance, two normally-closed contacts of the 6th relay are separately connected energy storage position signal lamp and ground cutter position letter Signal lamp.
Further, first primary circuit analog circuit includes third relay, the coil of the third relay One end ground connection, other end connection switch remote signalling terminal;The coincidence detection of the normally opened contact connection controller of the third relay End, the normally-closed contact connection switch input terminal of the third relay, the normally opened contact connection switch of the third relay Outlet terminal;
Second primary circuit analog circuit includes the 4th relay, and coil one end of the 4th relay is grounded, The other end is connect with the coil other end of third relay;The normally-closed contact connection switch input terminal of 4th relay, The normally opened contact connection switch outlet terminal of 4th relay;
Third primary circuit analog circuit includes the 5th relay, and coil one end of the 5th relay is grounded, The other end is connect with the coil other end of third relay;The normally-closed contact connection switch input terminal of 5th relay, The normally opened contact connection switch outlet terminal of 4th relay.
Second aspect, a kind of Intelligent power distribution terminal and the technical side for communicating O&M integrated training method that the disclosure proposes Case is:
A kind of Intelligent power distribution terminal and communication O&M integrated training method, this method are matched based on intelligence as described above What electric terminals and communication O&M integration practical training system were realized, method includes the following steps:
Export electric current by transformer output voltage or reaying protection test instrument, to mimic-disconnecting switch provide three-phase voltage or Primary current;
By the fault setting region of mimic-disconnecting switch, failure is set, including single-phase earthing, phase fault, three-phase shortcircuit or Energy storage anomalous line failure, different line fault is simulated by mimic-disconnecting switch;
The voltage or current value of breaker are acquired, and remotely issues remote control command to main website, keeps the breaker of fault point disconnected It opens, carries out Fault Isolation.
Further, described the step of different line faults are simulated by mimic-disconnecting switch, includes:
When the coil of second relay is powered, simulated implementation once switchs the holding of coincidence;First relay coil is powered When, the second relay coil current supply circuit is disconnected, the sub-switching operation once switched is simulated;
When the coil of third relay, the 4th relay and the 5th relay is powered, simulation primary circuit is connected;Third after When the coil blackout of electric appliance, the 4th relay and the 5th relay, simulation primary circuit is disconnected;
The coil of 5th relay is powered, and when the input shorted on both ends of photoelectrical coupler, simulation earthing knife-switch ground connection, control is closed a floodgate Circuit, No switching on;The coil blackout of 5th relay, when the input both ends of photoelectrical coupler separate, simulation earthing knife-switch is disconnected, into Row closes a floodgate.
Through the above technical solutions, the beneficial effect of the disclosure is:
(1) Intelligent power distribution terminal and communication O&M integration practical training system that the disclosure proposes, can effectively promote correlation The technical skills level and overall qualities of post personnel, so as to quickly handle institute in electrical power distribution automatization system operational process The various problems encountered, General Promotion electrical power distribution automatization system operation level, it is ensured that the reliable and stable operation of power distribution network.
(2) disclosure can realize the flexible access of different type Intelligent power distribution terminal, and realize to the distant of mimic-disconnecting switch The functions such as survey, remote signalling and remote control;Analog realizes the chain interaction logic between breaker, earthing knife-switch, and simulated implementation route is common Failure, so that related operation maintenance personnel increases the ability of in-situ processing problem.
(3) mimic-disconnecting switch that the disclosure proposes, using the divide-shut brake of the series connection simulated implementation breaker of two relays Operation and opening and closing state are kept, and are controlled using microcontroller and are realized the operations such as breaker energy storage, earthing knife-switch be chain.
Detailed description of the invention
The Figure of description for constituting a part of this disclosure is used to provide further understanding of the disclosure, and the disclosure is shown Meaning property embodiment and its explanation do not constitute the improper restriction to the disclosure for explaining the application.
Fig. 1 is the structural block diagram of the integrated real training cabinet of embodiment one;
Fig. 2 is the structure chart of the single integrated training cabinet of embodiment one
Fig. 3 is the overall structure diagram of the integrated real training cabinet of embodiment one;
Fig. 4 is the structure chart of one mimic-disconnecting switch of embodiment;
Fig. 5 is the structure chart in one fault setting region of embodiment;
Fig. 6 is the structure chart in one terminal connection region of embodiment;
Fig. 7 is the circuit diagram that embodiment one switchs breaking-closing operating analog circuit
Fig. 8 is the circuit diagram of one first primary circuit analog circuit of embodiment
Fig. 9 is the circuit diagram of one earthing knife-switch state simulation circuit of embodiment;
Figure 10 is the structure chart of embodiment one second primary circuit analog circuit and third primary circuit analog circuit;
Figure 11 is the circuit diagram of one terminal J7 of embodiment.
Specific embodiment
The disclosure is described further with embodiment with reference to the accompanying drawing.
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the disclosure.Unless another It indicates, all technical and scientific terms that the disclosure uses have logical with disclosure person of an ordinary skill in the technical field The identical meanings understood.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
Embodiment one
The present embodiment provides a kind of Intelligent power distribution terminal and communication O&M integration practical training systems, by distribution main website, distribution Communication system, intelligent terminal, mimic-disconnecting switch etc. are integrated into a cabinet, constitute power distribution network experience system;The system building Intelligent power distribution terminal Universal Access Platform including stand institute terminal D TU and line feed terminals FTU is, it can be achieved that different type is intelligently matched The flexible access of electric terminals, and realize to functions such as the telemeterings, remote signalling and remote control of mimic-disconnecting switch;Analog realization breaker, Chain interaction logic between earthing knife-switch, simulated implementation route most common failure, so that related operation maintenance personnel increases in-situ processing problem Ability.
The Intelligent power distribution terminal and communication O&M integration practical training system include at least one integrated training cabinet, often A integrated training cabinet include cabinet body, setting connect in intracorporal four mimic-disconnecting switches 1 of cabinet, with four breakers for controlling Distribution terminal cells D TU2, communication module 3 and the ancillary equipment 4 for making four breakers, please refer to attached drawing 1.The simulation open circuit Device is connect with distribution terminal cells D TU, and the breaking-closing operating and opening and closing state for mimic-disconnecting switch are kept, and realizes breaker The operation such as chain of energy storage, earthing knife-switch;The ancillary equipment 4 is connect with distribution terminal cells D TU, is adopted for controlling distribution terminal unit Collect voltage, current value and the working condition of breaker;The ancillary equipment 4 is also connect by communication module 3 with master station communication, Realize the information exchange between ancillary equipment 4 and main website.
The debugging function of single integrated training cabinet, that is, analog distribution network system;Multiple integrated training cabinets can also With cascade, attached drawing 2 is please referred to, each integrated training cabinet is communicatively coupled by optical fiber or wireless network.
Attached drawing 3 is please referred to, the integrated cabinet further includes being arranged in the intracorporal reaying protection test instrument 5 of cabinet and transformer 6, one end of the transformer 6 is electrically connected with city, and the other end is connect with the power end of mimic-disconnecting switch 1, for converting alternating current For simulated high-pressure three-phase electricity, it is supplied to mimic-disconnecting switch;The Switch Three-Phase electricity of the reaying protection test instrument 5 and mimic-disconnecting switch Terminal connection is flowed, for providing primary current to mimic-disconnecting switch.
Attached drawing 4 is please referred to, the mimic-disconnecting switch 1 includes cabinet 11, at least four be arranged on case front panel 12 Fault setting region 13, is arranged in cabinet rear panel at least four terminal connection regions 15 being arranged on cabinet rear panel 14 Relay protection instrument input wires region 16 on 14 and the fault simulation circuit that cabinet inside is set.
In the present embodiment, fault setting region 13 there are four being uniformly arranged on the case front panel 12.It please refers to attached Fig. 5, each fault setting region 13 respectively include switch breaking-closing operating analog module 17, energy storage state analog module 18, Knife on-off analog module 19 and switch fault analog module 110.
Specifically, the switch breaking-closing operating analog module 17 includes the closing operation analog buttons of opening the light of tape light With the sub-switching operation analog buttons of opening the light of tape light, it is described open the light closing operation analog buttons and open the light sub-switching operation simulation by Button respectively coil corresponding to control current supply circuit series connection, for hand control switch division operate.
The energy storage state analog module 18 includes that energy storage position signal lamp and energy storage state switch, the energy storage position letter Signal lamp is connected with the normally-closed contact of energy storage relay RY6, is used to indicate breaker energy storage state;The energy storage state switch and control Device U1 processed is connected, and when energy storage state switch is in open position, analog breaker energy storage abnormality works as energy storage state When switching in the close position, analog breaker energy storage normal condition.
The earthing knife-switch on-off analog module 19 includes earthing knife-switch position signal lamp and head-shaking switch, the earthing knife-switch position signal lamp Connect with the normally-closed contact of energy storage relay RY6, be used to indicate earthing knife-switch state, the head-shaking switch and the first relay RY1 and The coil of second relay RY2 is connected, when head-shaking switch is in the close position, analog earthing knife-switch on state, when shaking the head out When closing in open position, analog earthing knife-switch off-state.
The switch fault analog module 110 includes four ship type switches, and four ship types switch is respectively and for connecting 1,3,5 pins for meeting the terminal J7 of load FTU are connected, and are respectively used to A phase ground fault, the AB phase short circuit event of analog switch Barrier, ABC phase short trouble, load investment state.
In the present embodiment, it sets to input there are four terminal connection region 15 and a relay protection instrument on the cabinet rear panel 14 and connect Line region 16, the fault setting region 13 on case front panel and the terminal connection region 15 on cabinet rear panel Corresponding before and after position, the relay protection instrument input wires region 16 is located at cabinet rear panel 14 close to the position of bottom.
Attached drawing 6 is please referred to, each terminal connection region 15 respectively includes switch input terminal, switch wire outlet terminal, switch Three-phase current terminal and switch remote signalling terminal.
Specifically, the switch input terminal is three, respectively switch input terminal Uain, switch input terminal Ubin With switch input terminal Ucin, the switch input terminal Uain, switchs input terminal Ubin and switch input terminal Ucin's One end is respectively connected to the telemetering voltage terminal of distribution terminal cells D TU, the other end be connected to the third of fault simulation circuit after 13 pin of normally-closed contact of electric appliance RY3, the 4th relay RY4, the 5th relay RY5, the end of incoming cables electricity for mimic-disconnecting switch Pressure.
Switch wire outlet terminal is three, the respectively sub- Uaout of switch wire outlet terminal, the sub- Ubout of switch wire outlet terminal and is opened Outlet terminal Ucout is closed, the sub- Uaout of switch wire outlet terminal, the sub- Ubout of switch wire outlet terminal and the sub- Ucout of switch wire outlet terminal connect respectively It is connected to the third relay RY3 of fault simulation circuit, 16 pins of the 4th relay RY4, the 5th relay RY5, the other end point Other external load FTU, the other end are used to simulate the outlet voltage of the breaker;The sub- Uaout of the switch wire outlet terminal, it switchs out The other end of line terminals Ubout and the sub- Ucout of switch wire outlet terminal are also connect with switch input terminal in another terminal connection region, Realize two switch in parallel.
The Switch Three-Phase current terminal is six, respectively switch A phase current terminal Ia, switch A phase current terminal Ia*, switch B phase current terminal Ib, switch B phase current terminal Ib*, switch C phase current terminal Ic and switch C phase current terminal Ic*, in which:
The switch A phase current terminal Ia, switch A phase current terminal Ia*, switch B phase current terminal Ib, switch B phase electricity One end of stream terminal Ib*, switch C phase current terminal Ic and switch C phase current terminal Ic* are respectively connected to distribution terminal unit The telemetering current terminal of DTU or the current output terminal of reaying protection test instrument, the other end are respectively connected to fault simulation circuit 13 pin of normally-closed contact of third relay RY3, the 4th relay RY4, the 5th relay RY5, for the logical of mimic-disconnecting switch Galvanic electricity stream.Wherein, the switch A phase current terminal Ia* in a terminal connection region 15, switch B phase current terminal Ib* and switch C Phase current terminal Ic* meets switch A phase current terminal Ia, the switch B phase current terminal Ib in another terminal connection region 15 and opens C phase current terminal Ic is closed, realizes the series-parallel of Multi- Switch.
The switch remote signalling terminal is eight, respectively switch remote signalling public terminal YXCOM, switch coincidence signal terminal YXH, switch quartile signal terminal YXF, energy storage signal terminal CN, earthing knife-switch position signal terminal DD, switch remote control common end YKCOM, remote control close terminal YKH, remote control divides terminal YKF;Wherein:
One end of the switch remote signalling public terminal YXCOM is connected to the remote signalling common end of distribution terminal cells D TU, another End is connected to the normally-closed contact 13 of the second relay RY2 in fault simulation circuit, for providing remote signalling current loop;The switch One end of coincidence signal terminal YXH is connected at distribution terminal cells D TU remote signalling terminal, and the other end is connected to fault simulation circuit In the second relay RY2 normally opened contact 16, for providing the coincidence signal of mimic-disconnecting switch;The switch quartile signal terminal One end of YXF is connected at distribution terminal cells D TU remote signalling terminal, and the other end is connected to the second relay in fault simulation circuit The normally-closed contact 15 of RY2, for providing the quartile signal of mimic-disconnecting switch;One end of the energy storage signal terminal CN, which is connected to, matches At the remote signalling terminal of electric terminals cells D TU, the other end is connected to the normally closed electric shock of the first relay RY1 in fault simulation circuit 11, for providing the energy storage signal of mimic-disconnecting switch;One end of the earthing knife-switch position signal terminal DD is connected to distribution terminal list At the remote signalling terminal of first DTU, 2 end of loop A of the second relay RY2 in other end connecting fault analog circuit, for providing mould The local signal of quasi- breaker.
One end of the switch remote control common end YKCOM is connected to the remote control common end of distribution terminal cells D TU, the other end It is connected to the positive power source terminal of fault simulation circuit, for being remotely controlled current loop;One end that terminal YKH is closed in the remote control, which is connected to, matches At the remote control terminal of electric terminals cells D TU, the other end is connected to the coil of the second relay in fault simulation circuit, third relay The coil of device, for providing remote control coincidence signal;The remote control divides one end of terminal YKF to be connected to distribution terminal cells D TU's At remote control terminal, the other end is connected to the coil of the first relay in fault simulation circuit, for providing remote control quartile signal.
Above-mentioned fault simulation circuit includes switch breaking-closing operating analog circuit, the first primary circuit analog circuit, the Two primary circuit analog circuits, third primary circuit analog circuit and earthing knife-switch state simulation circuit.
Attached drawing 7 is please referred to, the switch breaking-closing operating analog circuit includes the first relay RY1 and the second relay RY2, in which:
The loop A 1 of the second relay RY2 terminates head-shaking switch open terminal DD-, the second relay RY2's Terminal YKH is closed in the termination remote control of loop A 2, and the normally-closed contact 11 of the second relay RY2 is connect with 2 end of loop A, and described second The normally opened contact 12 of relay RY2 connects positive power source terminal, and the normally-closed contact 13 of the second relay RY2 connects switch remote control common end Sub- YXCOM, the normally opened contact 16 of the second relay RY2 meet switch coincidence signal terminal YXH, the second relay RY2 Normally-closed contact 15 connect switch quartile signal terminal YXF.
1 end of loop A of the first relay RY1 is grounded, the termination remote control point of loop A 2 end of the first relay RY1 Sub- YKF;The normally-closed contact 11 of the first relay RY1 connects 1 end of loop A of the second relay, the first relay RY1's Normally-closed contact 12 connects its 1 end of loop A.
The course of work for the switch breaking-closing operating analog circuit that the present embodiment proposes are as follows:
The interlocking that breaking-closing operating is realized using the concatenated mode of the wire loop of two relays, by the second relay The contact 11 of RY2 is connected with its loop A 2, and 14 contacts are connected to positive power source terminal, after closing operation pulse disappearance, makes the second relay The coil of device RY2 is maintained at energized state, and simulated implementation once switchs the holding of coincidence;When first relay RY1 coil is powered, Disconnect the second relay RY2 coil power supply circuit, the sub-switching operation that simulated implementation once switchs.
Primary switch quartile, coincidence status signal realize that 13 and 15 are by 13,15,16 contacts of the second relay RY2 Normally-closed contact, simulated implementation once switch gate-dividing state, and 13 and 16 are normally opened contact, the combined floodgate shape that simulated implementation once switchs State.
Attached drawing 8 is please referred to, first primary circuit analog circuit includes third relay RY3, the third relay 1 end of loop A of RY3 is grounded, and terminal YKH is closed in the termination remote control of loop A 2 of the third relay RY3;The third relay The normally-closed contact 11 of RY3 connects 3.3V power supply, and the normally opened contact of the third relay RY3 meets the coincidence test side of controller, institute The normally-closed contact 13 for stating third relay RY3 meets switch input terminal Uain, and the normally opened contact 16 of the third relay RY3 divides 1 pin of other connection switch outlet terminal Uaout and the terminal J7 for connecting load FTU.
The course of work for the primary circuit analog circuit that the present embodiment proposes are as follows:
Primary switch point, unification minor loop simulation, the coil of third relay RY3 are realized using third relay RY3 When energization, simulates primary circuit at this and connect;When the coil blackout of third relay RY3, simulates primary circuit at this and disconnect. When the normally-closed contact 13 of third relay RY3 connects the secondary voltage output end of transformer by switching input terminal Uain, realize The simulation of intelligent distributed distribution network system, when the normally-closed contact 13 of third relay RY3 is connect by switching input terminal Uain The current output terminal of relay protection instrument realizes the simulation of current convergence type power distribution network.
Please referring to attached drawing 10 and Figure 11, second primary circuit analog circuit includes the 4th relay RY4, and the described 4th 1 end of loop A of relay RY4 is grounded, 2 end of loop A of the 4th relay RY4 and 2 end of loop A of third relay RY3 Connection;The normally-closed contact 13 of the 4th relay RY4 meets switch input terminal Ubin, and the 4th relay RY4's is normally opened Contact 16 is separately connected 3 pins of the sub- Ubout of switch wire outlet terminal and the terminal J7 for connecting load FTU.
Third primary circuit analog circuit includes the 5th relay RY5,1 end of loop A of the 5th relay RY5 Ground connection, 2 end of loop A of the 5th relay RY5 is connect with 2 end of loop A of third relay RY3;5th relay The normally-closed contact 13 of RY5 meets switch input terminal Ucin, and the normally opened contact 16 of the 5th relay RY5, which is separately connected, to be switched out 3 pins of line terminals Ubout and the terminal J7 for connecting load FTU.
Attached drawing 9 is please referred to, the earthing knife-switch state simulation circuit includes controller U1, photoelectrical coupler S1 and the 6th relay The diode anode 1 of RY6, the photoelectrical coupler S1 connect 3.3V, the diode cathode 2 of the photoelectrical coupler S1 by resistance The output end of controller is connect, the transistor collector 4 of the photoelectrical coupler S1 connects 24V, three poles of the photoelectrical coupler S1 Pipe emitter 3 connects 2 end of loop A of the 6th relay RY6,1 end of the loop A ground connection of the relay RY4, the 6th relay The normally-closed contact 11 and normally-closed contact 13 of RY6 connects energy storage position signal lamp and earthing knife-switch position signal lamp.
The course of work for the earthing knife-switch state simulation circuit that the present embodiment proposes are as follows:
The interlock logic realizing earthing knife-switch and once switching is controlled using controller, photoelectrical coupler S1 simulates earthing knife-switch, photoelectricity When 1 and 2 feet of coupler S1 are shorted, simulation earthing knife-switch ground connection controls closing circuit, No switching on;The 1 of photoelectrical coupler S1 and 2 When foot separates, simulation earthing knife-switch is disconnected, and can be closed a floodgate.
It is controlled using controller and realizes delay stored energy operation, and stored energy operation delay time can be arbitrarily arranged.
The mimic-disconnecting switch that the present embodiment proposes is grasped using the divide-shut brake of the series connection simulated implementation breaker of two relays Make and opening and closing state is kept, is controlled with microcontroller and realize the operations such as breaker energy storage, earthing knife-switch be chain.
In the present embodiment, the distribution terminal cells D TU has remote control, telemetering, remote signaling function, supports to realize electric current collection Medium-sized equal multiple types feed line automatization system.
In the present embodiment, the communication module can select fiber optic telecommunications module, can also select wireless communication module.
Simulation distribution network systems may be implemented in the integrated cabinet that the present embodiment proposes;The integrated cabinet can also support cabinet Between cascade, can according to need and set up complicated distribution line topological structure, and realize different types of feeder automation function Energy.
Embodiment two
The present embodiment provides a kind of Intelligent power distribution terminals and communication O&M integrated training method, this method to be based on institute as above What the Intelligent power distribution terminal and communication O&M integration practical training system stated were realized.
The Intelligent power distribution terminal and communication O&M integrated training method, this method are matched based on intelligence as described above What electric terminals and communication O&M integration practical training system were realized, method includes the following steps:
S101, exports electric current by transformer output voltage or reaying protection test instrument, provides three-phase to mimic-disconnecting switch Voltage or primary current.
Failure is arranged by the fault setting region of mimic-disconnecting switch according to system in S102, including single-phase earthing, alternate The line faults such as short circuit, three-phase shortcircuit, energy storage exception, different line fault is simulated by mimic-disconnecting switch.
Specifically, when the coil of the second relay is powered, simulated implementation once switchs the holding of coincidence;First relay When coil is powered, the second relay coil current supply circuit is disconnected, simulates the sub-switching operation once switched;
When the coil of third relay, the 4th relay and the 5th relay is powered, simulation primary circuit is connected;Third When the coil blackout of relay, the 4th relay and the 5th relay, simulation primary circuit is disconnected;
When the coil energization of the 5th relay, the input shorted on both ends of photoelectrical coupler, simulation earthing knife-switch ground connection, control is closed Lock circuit, No switching on;The coil blackout of 5th relay, when the input both ends of photoelectrical coupler separate, simulation earthing knife-switch is disconnected, It closes a floodgate.
S103, the voltage or current value of breaker are acquired by laptop, and remotely issue remote control command to main website, The breaker of fault point is disconnected, Fault Isolation is carried out.
Although above-mentioned be described in conjunction with specific embodiment of the attached drawing to the disclosure, model not is protected to the disclosure The limitation enclosed, those skilled in the art should understand that, on the basis of the technical solution of the disclosure, those skilled in the art are not Need to make the creative labor the various modifications or changes that can be made still within the protection scope of the disclosure.

Claims (10)

1. a kind of Intelligent power distribution terminal and communication O&M integration practical training system, characterized in that real including at least one integration Cabinet is instructed, the integrated training cabinet includes cabinet body, is arranged in intracorporal at least four mimic-disconnecting switch of cabinet, distribution terminal list Member, communication module and ancillary equipment, the mimic-disconnecting switch are connect with distribution terminal unit, the divide-shut brake for mimic-disconnecting switch Operation, opening and closing state and the chain operation of breaker energy storage, earthing knife-switch;The ancillary equipment is connect with distribution terminal unit, is used In voltage, current value and the working condition of control distribution terminal unit acquisition breaker;The ancillary equipment also passes through communication Module is connect with other integrated training cabinets, master station communication, realize integrated training cabinet between and integrated training machine Information exchange between cabinet and main website.
2. Intelligent power distribution terminal according to claim 1 and communication O&M integration practical training system, characterized in that described one Body real training cabinet further includes being arranged in the intracorporal reaying protection test instrument of cabinet and transformer, the transformer and mimic-disconnecting switch Power end connection, for give mimic-disconnecting switch provide three-phase voltage;The reaying protection test instrument and mimic-disconnecting switch are opened The connection of three-phase current terminal is closed, for providing primary current to mimic-disconnecting switch.
3. Intelligent power distribution terminal according to claim 1 and communication O&M integration practical training system, characterized in that the mould Quasi- breaker includes cabinet, at least four fault setting regions being arranged on case front panel, is arranged on cabinet rear panel At least four terminal connection regions, the relay protection instrument input wires region that is arranged on cabinet rear panel and be arranged in cabinet The fault simulation circuit in portion.
4. Intelligent power distribution terminal according to claim 3 and communication O&M integration practical training system, characterized in that the event Barrier setting area includes simulating mould with the switch breaking-closing operating analog module of fault simulation circuit connection, energy storage state respectively Block, earthing knife-switch on-off analog module and switch fault analog module;
The switch breaking-closing operating analog module includes open the light closing operation analog buttons and the tape light of tape light It opens the light sub-switching operation analog buttons;
The energy storage state analog module includes energy storage position signal lamp and energy storage state switch;
The earthing knife-switch on-off analog module includes earthing knife-switch position signal lamp and head-shaking switch;
The switch fault analog module is switched including at least four ship types.
5. Intelligent power distribution terminal according to claim 3 and communication O&M integration practical training system, characterized in that the end Terminated line region includes switch input terminal, switch wire outlet terminal, Switch Three-Phase current terminal and switch remote signalling terminal;
One end of the switch input terminal is connected to the telemetering voltage terminal of distribution terminal unit, the simulation of other end connecting fault Circuit;
One end connecting fault analog circuit of switch wire outlet terminal, the external FTU of the other end;
The telemetering current terminal or reaying protection test instrument of one end connection distribution terminal unit of the Switch Three-Phase current terminal Current output terminal, other end connecting fault analog circuit;
One end of the switch remote signalling terminal connects distribution terminal unit, other end connecting fault analog circuit.
6. Intelligent power distribution terminal according to claim 3 and communication O&M integration practical training system, characterized in that the event Hindering analog circuit includes switch breaking-closing operating analog circuit, the first primary circuit analog circuit, the second primary circuit simulation electricity Road, third primary circuit analog circuit and earthing knife-switch state simulation circuit;
The switch breaking-closing operating analog circuit include the first relay and the second relay, first relay it is normally closed Contact connects coil one end of the second relay, and coil one end of second relay connects head-shaking switch, described first after The coil other end of electric appliance, the coil other end of the second relay, the normally opened contact of the second relay, the second relay it is normally closed Contact is separately connected switch remote signalling terminal.
7. Intelligent power distribution terminal according to claim 6 and communication O&M integration practical training system, characterized in that describedly Knife state simulation circuit includes controller, photoelectrical coupler and the 6th relay, and the diode cathode of the photoelectrical coupler connects Connecing the output end of controller, the transistor emitter of the photoelectrical coupler connects coil one end of the 6th relay, and described the Two normally-closed contacts of six relays are separately connected energy storage position signal lamp and earthing knife-switch position signal lamp.
8. Intelligent power distribution terminal according to claim 7 and communication O&M integration practical training system, characterized in that described the One primary circuit analog circuit includes third relay, coil one end ground connection of the third relay, other end connection switch Remote signalling terminal;The third relay normally opened contact connection controller coincidence test side, the third relay it is normally closed Contact connection switch input terminal, the normally opened contact connection switch outlet terminal of the third relay;
Second primary circuit analog circuit includes the 4th relay, and coil one end of the 4th relay is grounded, another End is connect with the coil other end of third relay;The normally-closed contact connection switch input terminal of 4th relay, it is described The normally opened contact connection switch outlet terminal of 4th relay;
Third primary circuit analog circuit includes the 5th relay, and coil one end of the 5th relay is grounded, another End is connect with the coil other end of third relay;The normally-closed contact connection switch input terminal of 5th relay, it is described The normally opened contact connection switch outlet terminal of 4th relay.
9. a kind of Intelligent power distribution terminal and communication O&M integrated training method, this method is based on any in claim 1 to 8 What Intelligent power distribution terminal and communication O&M integration practical training system described in were realized, characterized in that this method includes following step It is rapid:
Electric current is exported by transformer output voltage or reaying protection test instrument, to mimic-disconnecting switch offer three-phase voltage or once Electric current;
By the fault setting region of mimic-disconnecting switch, failure, including single-phase earthing, phase fault, three-phase shortcircuit or energy storage are set Anomalous line failure simulates different line fault by mimic-disconnecting switch;
The voltage or current value of breaker are acquired, and remotely issues remote control command to main website, disconnects the breaker of fault point, into Row Fault Isolation.
10. Intelligent power distribution terminal according to claim 9 and communication O&M integrated training method, characterized in that described The step of simulating different line faults by mimic-disconnecting switch include:
When the coil of second relay is powered, simulated implementation once switchs the holding of coincidence;When first relay coil is powered, break The second relay coil current supply circuit is opened, the sub-switching operation once switched is simulated;
When the coil of third relay, the 4th relay and the 5th relay is powered, simulation primary circuit is connected;Third relay When the coil blackout of device, the 4th relay and the 5th relay, simulation primary circuit is disconnected;
The coil of 5th relay is powered, and when the input shorted on both ends of photoelectrical coupler, simulation earthing knife-switch ground connection, control is closed a floodgate back Road, No switching on;The coil blackout of 5th relay, when the input both ends of photoelectrical coupler separate, simulation earthing knife-switch is disconnected, and is carried out It closes a floodgate.
CN201910458901.8A 2019-05-29 2019-05-29 Intelligent power distribution terminal and communication operation and maintenance integrated training system and method Active CN110299041B (en)

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CN111653163A (en) * 2020-06-22 2020-09-11 河南盛世恒信科技有限公司 Circuit breaker simulation system with fault detection function and experimental method
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CN113687220B (en) * 2021-07-16 2024-04-05 国家电网有限公司技术学院分公司 Simulation device and method for spring energy storage type vacuum circuit breaker
CN114113849A (en) * 2021-11-24 2022-03-01 国家电网有限公司 DTU test fixture
CN114333469A (en) * 2021-12-09 2022-04-12 上海金智晟东电力科技有限公司 Power distribution terminal three-remote full-working-condition live-action simulation practical training system and method
CN115064024A (en) * 2022-05-23 2022-09-16 广西电网有限责任公司电力科学研究院 Analog switch synchronous circuit of feeder automation training system
CN115064024B (en) * 2022-05-23 2023-09-19 广西电网有限责任公司电力科学研究院 Analog switch synchronous circuit of feeder automation training system

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