CN106159920B - A kind of 10kV power grids feeder fault processing physics simulator - Google Patents
A kind of 10kV power grids feeder fault processing physics simulator Download PDFInfo
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- CN106159920B CN106159920B CN201610771606.4A CN201610771606A CN106159920B CN 106159920 B CN106159920 B CN 106159920B CN 201610771606 A CN201610771606 A CN 201610771606A CN 106159920 B CN106159920 B CN 106159920B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B17/00—Systems involving the use of models or simulators of said systems
- G05B17/02—Systems involving the use of models or simulators of said systems electric
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention discloses a kind of 10kV power grids feeder faults to handle physics simulator, it is three-phase 10kV step-up transformers and the special special transformer of 10kV/380V three-phase five-limbs including low voltage three-phase 380V boostings, the low voltage three-phase 380V boostings are that three-phase 10kV step-up transformers are equipped with two altogether, the device can simulate the failure and processing method of 10kV power distribution networks under any type neutral operation method, and intelligent controller is made to be suitable for various 10kV power distribution networks running environment；The physical analogy running environment of mode hand in hand and radioactivity mode can also be provided；By two groups of 10kV power capacitors and simulation mobile trolley, can be analyzed with realistic simulation when various failures occur for any part of path of 10kV power distribution networks, the dynamic change situation of failure quantity；By the various methods of operation of system, the transient state stable state situation of change of the failure electric parameter under the various malfunctions of sunykatuib analysis, to promote the reliability of 10kV power distribution networks, accurate judgement isolated fault section.
Description
Technical field
The present invention relates to distribution system 10kV for electrical domain, and specially a kind of 10KV power grids feeder fault handles physical simulation
Device.
Background technology
With the continuous development of national economy, electricity consumption constantly increases, power supply reliability, various failures to electric system
More stringent requirements are proposed for the accurately and timely property of troubleshooting when generation.The various intelligence built in emulation of the computer software system
Energy controller is answered market and is given birth to.But the actual motion of 10kV overhead transmission lines and emulation of the computer software are widely different after all, this
Device provides a kind of actual roads 10kV overhead transmission line, and can hand in hand feeder line in most representative two 10kV
The upper practical physical simulation for carrying out various failures；At present the average year power off time of China 10kV power distribution networks compared with American-European, Japan,
The developed countries such as South Korea want gap huge, and power supply reliability is in urgent need to be improved, and year, power off time length was mainly since 10kV matches
For power grid when breaking down, the time for searching failure is too long.Current national grid is being gone into overdrive, and is made on 10KV power distribution networks
Fault outage time and range are reduced with Intellectualized controller, but the intelligent device situation used with regard to current live is not to the utmost
People's will, it is various that reason is that the intelligent device for building on and being designed on computer simulation system completely, cannot be emulated practically
The failure mode of 10kV power distribution networks causes Intellectualized controller performance unreliable.
Invention content
The purpose of the present invention is to provide a kind of 10kV power grids feeder faults to handle physics simulator, to solve the above-mentioned back of the body
The problem of being proposed in scape technology.
To achieve the above object, the present invention provides the following technical solutions：
A kind of 10kV power grids feeder fault processing physics simulator, including low voltage three-phase 380V boostings are three-phase 10kV liters
Pressure transformer and the special special transformer of 10kV three-phase five-limbs, the low voltage three-phase 380V boostings are three-phase 10kV boosting transformations
Device is equipped with two altogether, respectively No. 1 main transformer and No. 2 main transformers, and the three-phase end of incoming cables of No. 1 main transformer and No. 2 main transformers is by low
Tri- input lines of compression moulding shell main switch and A, B, C are connect, and the three-phase 10kV high-voltage terminals end of No. 1 main transformer respectively with 10kV high pressures
The end of incoming cables of switch RC1 is connected with the three-phase end of incoming cables of the special special transformer of 10kV three-phase five-limbs, No. 1 main transformer with
The direct-to-ground capacitance C9 for simulating 1# main transformer mains side 10kV circuits, institute are connected between the end of incoming cables of 10kV high-voltage switch gears RC1
State the leading-out terminal of the special special transformer of the 10kV three-phase five-limbs stationary contact with high voltage connector JL and high voltage connector JR respectively
Head is connected, and the moving contact of the high voltage connector JL is connected with the power inductor L with multi-tap, the high voltage connector
The ground resistance R of low resistance grounding is connected during the moving contact of JR is simulated with 10kV, the leading-out terminal of the 10kV high-voltage switch gears RC1
Connect the end of incoming cables of 10kV high-voltage switch gears F1, the inlet wire of the leading-out terminal connection 10kV high-voltage switch gears F2 of the 10kV high-voltage switch gears F1
End；
The three-phase 10kV high-voltage terminals end of No. 2 main transformers is connected with 10kV high-voltage switch gears RC2, No. 2 main transformers and
10kV high-voltage terminals end is connected with the end of incoming cables of high-voltage switch gear RC2, and is connected between No. 2 main transformers and RC2 circuits for simulating
The leading-out terminal and 10kV high-voltage switch gears F3 of the direct-to-ground capacitance C12, the 10kV high-voltage switch gears RC1 of 1# main transformer mains side 10kV circuits
End of incoming cables be connected, the leading-out terminal of the 10kV high-voltage switch gears F3 is connected with the end of incoming cables of 10kV high-voltage switch gears F4, the 10kV
10kV high-voltage switch gears D1, the leading-out terminal of the 10kV high-voltage switch gears F4 are connected between high-voltage switch gear F3 and 10kV high-voltage switch gear F4
It is connected respectively into and out of line end with knob switch L1 with the leading-out terminal of 10kV high-voltage switch gears F2.
Preferably, 10kV high-voltage switch gears F1,10kV high-voltage switch gear F2,10kV high-voltage switch gear F3,10kV high-voltage switch gear
F4,10kV high-voltage switch gear RC1,10kV high-voltage switch gear RC2 and 10kV high-voltage switch gear D1 are each equipped with the intelligent control of VTIC schemes
Device.
Preferably, one is equipped between the end and the end of No. 2 main transformer supply lines of No. 1 main transformer supply line
10kV high-voltage switch gears are as automatic interconnection switch.
Preferably, No. 1 main transformer, 10kV high-voltage switch gear RC1 load sides, 10kV high-voltage switch gear F1,10kV high-voltage switch gears
F2 is equipped with a mould being made of the 10kV resistance group and capacitance group of three-phase until the mains side 10kV circuits of knob switch L1
No. 1 trolley of quasi- movable type, 10kV high-voltage switch gear RC2 load sides, 10kV high-voltage switch gear F3,10kV high-voltage switch gears F4, knob switch
It is mobile No. 2 small that the 10kV circuits of L1 load sides are equipped with the simulation that one is made of the 10kV resistance group and capacitance group of three-phase
Vehicle.
Preferably, the capacitance group common end of the power inductor L, direct-to-ground capacitance C9 and direct-to-ground capacitance C12,1# trolley,
The capacitance group common end of 2# trolleies is equipped with ground wire.
Compared with prior art, the beneficial effects of the invention are as follows：The device can simulate any type neutral operation method
The failure and processing method of lower 10kV power distribution networks make intelligent controller be suitable for various 10kV power distribution networks running environment；It can also carry
For the physical analogy running environment of the mode of handing in hand and radioactivity mode；It is mobile by two groups of 10kV power capacitors and simulation
Trolley can be analyzed with realistic simulation when various failures occur for any part of path of 10kV power distribution networks, and the dynamic of failure quantity becomes
Change situation；By the various methods of operation of system, the transient state stable state of the failure electric parameter under the various malfunctions of sunykatuib analysis
Situation of change, to promote the reliability of 10kV power distribution networks, accurate judgement isolated fault section.
Description of the drawings
Fig. 1 is primary system schematic diagram of the present invention.
In figure：No. 1 main transformer, No. 2 main transformers, the special special transformer of 10kV three-phase five-limbs, direct-to-ground capacitance C9, high pressure contact
Device JL, high voltage connector JR, power inductor L, 10kV resistance R, 10kV high-voltage switch gear F1,10kV high-voltage switch gear F2,10kV high
Compress switch F3,10kV high-voltage switch gear F4,10kV high-voltage switch gear RC1,10KV high-voltage switch gear RC2, direct-to-ground capacitance C12,10kV high pressure
Switch D1,10kV knob switch L1.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, the present invention provides a kind of technical solution：
A kind of 10kV power grids feeder fault processing physics simulator, including low voltage three-phase 380V boostings are three-phase 10kV liters
Pressure transformer and the special special transformer of 10kV three-phase five-limbs, the low voltage three-phase 380V boostings are three-phase 10kV boosting transformations
Device is equipped with two altogether, respectively No. 1 main transformer and No. 2 main transformers, and the three-phase end of incoming cables of No. 1 main transformer and No. 2 main transformers is by low
Tri- input lines of compression moulding shell main switch and A, B, C are connect, and the three-phase 10kV high-voltage terminals end of No. 1 main transformer respectively with 10kV high pressures
The end of incoming cables of switch RC1 is connected with the three-phase end of incoming cables of the special special transformer of 10kV three-phase five-limbs, No. 1 main transformer with
The direct-to-ground capacitance C9 for simulating 1# main transformer mains side 10kV circuits, institute are connected between the end of incoming cables of 10kV high-voltage switch gears RC1
State the leading-out terminal of the special special transformer of the 10kV three-phase five-limbs stationary contact with high voltage connector JL and high voltage connector JR respectively
Head is connected, and the moving contact of the high voltage connector JL is connected with the power inductor L with multi-tap, the high voltage connector
The ground resistance R of low resistance grounding is connected during the moving contact of JR is simulated with 10kV, the leading-out terminal of the 10kV high-voltage switch gears RC1
Connect the end of incoming cables of 10kV high-voltage switch gears F1, the inlet wire of the leading-out terminal connection 10kV high-voltage switch gears F2 of the 10kV high-voltage switch gears F1
End.
The three-phase 10kV high-voltage terminals end of No. 2 main transformers is connected with 10kV high-voltage switch gears RC2, No. 2 main transformers and
10kV high-voltage terminals end is connected with the end of incoming cables of high-voltage switch gear RC2, and is connected between No. 2 main transformers and RC2 circuits for simulating
The leading-out terminal and 10kV high-voltage switch gears F3 of the direct-to-ground capacitance C12, the 10kV high-voltage switch gears RC1 of 1# main transformer mains side 10kV circuits
End of incoming cables be connected, the leading-out terminal of the 10kV high-voltage switch gears F3 is connected with the end of incoming cables of 10kV high-voltage switch gears F4, the 10kV
10kV high-voltage switch gears D1,10kV high-voltage switch gear F1 is connected between high-voltage switch gear F3 and 10kV high-voltage switch gear F4,10kV high is pressed off
Close F2,10kV high-voltage switch gear F3,10kV high-voltage switch gear F4,10kV high-voltage switch gear RC1,10kV high-voltage switch gear RC2 and 10kV high pressure
Switch D1 is each equipped with the intelligent controller of VTIC schemes, the leading-out terminal and 10kV high-voltage switch gears F2 of the 10kV high-voltage switch gears F4
Leading-out terminal be connected respectively into and out of line end with knob switch L1, the end of No. 1 main transformer supply line and No. 2 main transformer supply lines
A 10kV high-voltage switch gear is equipped between the end on road as automatic interconnection switch, No. 1 main transformer, 10kV high-voltage switch gear RC1 loads
Side, 10kV high-voltage switch gears F1,10kV high-voltage switch gear F2 until knob switch L1 mains side 10kV circuits equipped with one by three
Mobile No. 1 trolley of simulation that the 10kV resistance group and capacitance group of phase are constituted, 10kV high-voltage switch gear RC2 load sides, 10kV high pressures
Switch F3,10kV high-voltage switch gear F4, switch L1 load sides of shaking hands 10kV circuits equipped with a 10kV resistance group by three-phase
Mobile No. 2 trolleies of simulation constituted with capacitance group, power inductor L, direct-to-ground capacitance C9 and direct-to-ground capacitance C12,1# trolley
Capacitance group common end, 2# trolleies capacitance group common end be equipped with ground wire.
Operation principle：When simulating isolated neutral system, it (is three-phase by low voltage three-phase 380V boostings to enable No. 2 main transformers
10kV step-up transformers), by the 10kV line mutual-ground capacitors before C12 power capacitor group simulated failure points, pass through No. 2 trolleies
Combined type input simulated failure point after load side network load, 10kV line capacitances, short trouble, over current fault or various
Ground connection (including various forms of middle resistances, high resistance earthing fault and arc grounding) failure.Since eight high-voltage switch gears are each equipped with
Intelligent controller is connect by the communication device of controller with server, and various transient state when sampling failure occurs are electrical, position
Aliquot and stable state are electrical, position aliquot is analyzed；
When simulating neutral by arc extinction coil grounding system, it (is three-phase by low voltage three-phase 380V boostings to enable No. 1 main transformer
10kV step-up transformers), by the 10kV line mutual-ground capacitors before C9 power capacitor group simulated failure points, pass through No. 1 trolley
Combined type input simulated failure point after network load, 10kV line capacitances, short trouble, over current fault or various ground connection
(including various forms of middle resistances, high resistance earthing fault and arc grounding) failure.While analogue ground failure, pass through JLIt throws
Enter power inductor to simulate arc suppression coil compensating system, since eight high-voltage switch gears are each equipped with intelligent controller, passes through control
The communication device of device processed is connect with server, various transient state when sampling failure occurs are electrical, position aliquot and stable state are electrical,
Position aliquot is analyzed；
When simulating Neutral Point Through Low Resistance system, it (is three-phase 10kV by low voltage three-phase 380V boostings to enable No. 1 main transformer
Step-up transformer), by the 10kV line mutual-ground capacitors before C9 power capacitor group simulated failure points, pass through the group of No. 1 trolley
It is box-like input simulated failure point after network load, 10kV line capacitances, short trouble, over current fault or it is various ground connection (including
Various forms of middle resistances, high resistance earthing fault and arc grounding) failure.While analogue ground failure, pass through JRInput 60
Ohm high-tension resistive simulates low resistance grounding, since eight high-voltage switch gears are each equipped with intelligent controller, passes through controller
Communication device is connect with server, and various transient state when sampling failure occurs are electrical, position aliquot and the electrical, position of stable state etc.
Component is analyzed；
During simulating various failures, operation, relevant intelligent controller are automatically engaged by the switch L1 that shakes hands
Forward and backward operating parameter group is put into L1 by auto-changing, the variation of the adaptive various methods of operation.Pass through intelligent control
Device acquires the accurate reliability of respective amount of logic situation of change and physical simulation system acting, and when being occurred according to sampling failure
Various transient state are electrical, position aliquot and stable state are electrical, position aliquot is analyzed, original in modification or correcting controller
Program and logic function are controlled, accurate, rapid, reliably isolated fault section is realized, restores non-faulting section to the maximum extent
Normal power supply, achieve the purpose that promoted 10kV distribution network reliabilities.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (1)
1. a kind of 10kV power grids feeder fault handles physics simulator, including low voltage three-phase 380V boostings are three-phase 10kV boostings
Transformer and the special special transformer of 10kV three-phase five-limbs, it is characterised in that：The low voltage three-phase 380V boostings are three-phase
10kV step-up transformers are equipped with two altogether, respectively No. 1 main transformer and No. 2 main transformers, the three-phase of No. 1 main transformer and No. 2 main transformers into
Line end is connect by tri- input lines of low-pressure plastic shell main switch and A, B, C, and the three-phase 10kV high-voltage terminals end of No. 1 main transformer point
It is not connected with the three-phase end of incoming cables of the end of incoming cables of 10kV high-voltage switch gears RC1 and the special special transformer of 10kV three-phase five-limbs,
It is connected between No. 1 main transformer and the end of incoming cables of 10kV high-voltage switch gears RC1 for simulating 1# main transformer mains side 10kV circuits
Direct-to-ground capacitance C9, the leading-out terminal of the special special transformer of 10kV three-phase five-limbs respectively with high voltage connector JL and high-voltage connecting
The static contact of tentaculum JR is connected, and the moving contact of the high voltage connector JL is connected with the power inductor L with multi-tap, institute
The moving contact for stating high voltage connector JR is connected with the ground resistance R of low resistance grounding in 10kV simulations, and the 10kV high is pressed off
The end of incoming cables of the leading-out terminal connection 10kV high-voltage switch gears F1 of RC1 is closed, the leading-out terminal of the 10kV high-voltage switch gears F1 connects 10kV high
Compress switch the end of incoming cables of F2；
The three-phase 10kV high-voltage terminals end of No. 2 main transformers is connected with 10kV high-voltage switch gears RC2, No. 2 main transformers and the 10kV high
It extrudes line end with the end of incoming cables of high-voltage switch gear RC2 to be connected, and is connected between No. 2 main transformers and RC2 circuits for simulating 1# main transformers
The direct-to-ground capacitance C12 of mains side 10kV circuits, the inlet wire of the leading-out terminal and 10kV high-voltage switch gears F3 of the 10kV high-voltage switch gears RC1
End is connected, and the leading-out terminal of the 10kV high-voltage switch gears F3 is connected with the end of incoming cables of 10kV high-voltage switch gears F4, and the 10kV high is pressed off
It is connected with 10kV high-voltage switch gears D1, the leading-out terminal and 10kV of the 10kV high-voltage switch gears F4 between F3 the and 10kV high-voltage switch gears F4 of pass
The leading-out terminal of high-voltage switch gear F2 is connected with knob switch L1 into and out of line end respectively；
10kV high-voltage switch gears F1,10kV high-voltage switch gear F2,10kV high-voltage switch gear F3,10kV high-voltage switch gear F4,10kV high pressure
Switch RC1,10kV high-voltage switch gear RC2 and 10kV high-voltage switch gear D1 is each equipped with the intelligent controller of VTIC schemes；
A 10kV high-voltage switch gear is equipped between the end and the end of No. 2 main transformer supply lines of No. 1 main transformer supply line
As automatic interconnection switch；
No. 1 main transformer, 10kV high-voltage switch gear RC1 load sides, 10kV high-voltage switch gears F1,10kV high-voltage switch gear F2 are opened until shaking hands
Closing the mains side 10kV circuits of L1, to be equipped with the simulation that one is made of the 10kV resistance group and capacitance group of three-phase mobile No. 1 small
Vehicle, 10kV high-voltage switch gear RC2 load sides, 10kV high-voltage switch gear F3,10kV high-voltage switch gears F4, shake hands switch L1 load sides 10kV
Circuit is equipped with mobile No. 2 trolleies of simulation being made of the 10kV resistance group and capacitance group of three-phase；
The capacitance group common end of the power inductor L, direct-to-ground capacitance C9 and direct-to-ground capacitance C12,1# trolley, 2# trolleies capacitance
Group common end is equipped with ground wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610771606.4A CN106159920B (en) | 2016-08-30 | 2016-08-30 | A kind of 10kV power grids feeder fault processing physics simulator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610771606.4A CN106159920B (en) | 2016-08-30 | 2016-08-30 | A kind of 10kV power grids feeder fault processing physics simulator |
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| CN106159920A CN106159920A (en) | 2016-11-23 |
| CN106159920B true CN106159920B (en) | 2018-08-21 |
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| CN112419822A (en) * | 2020-11-16 | 2021-02-26 | 贵州电网有限责任公司 | 10KV distribution network equivalent test low-voltage simulation system and simulation method thereof |
| CN112379606B (en) * | 2020-11-30 | 2024-08-09 | 国网冀北电力有限公司电力科学研究院 | Power distribution physical simulation platform |
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| CN104597899A (en) * | 2015-02-04 | 2015-05-06 | 国家电网公司 | Technical performance test platform of distribution automation device |
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| US5341268A (en) * | 1991-12-16 | 1994-08-23 | Kabushiki Kaisha Toshiba | Method of and system for disconnecting faulty distribution line section from power distribution line |
| CN203881876U (en) * | 2014-06-11 | 2014-10-15 | 国家电网公司 | Modularized and integrated system for dynamic simulation and terminal detection of power distribution network |
| CN105070157B (en) * | 2015-07-16 | 2018-04-20 | 山东大学 | A kind of feeder automation simulation training system |
| CN206117135U (en) * | 2016-08-30 | 2017-04-19 | 泉州维盾电气有限公司 | 10kV electric wire netting feeder fault handling physical simulation device |
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| CN104597899A (en) * | 2015-02-04 | 2015-05-06 | 国家电网公司 | Technical performance test platform of distribution automation device |
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