CN104360193B - Electromagnetic disturbance simulation test platform of transformer substation secondary system - Google Patents

Electromagnetic disturbance simulation test platform of transformer substation secondary system Download PDF

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Publication number
CN104360193B
CN104360193B CN201410645939.3A CN201410645939A CN104360193B CN 104360193 B CN104360193 B CN 104360193B CN 201410645939 A CN201410645939 A CN 201410645939A CN 104360193 B CN104360193 B CN 104360193B
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China
Prior art keywords
simulation
electromagnetic disturbance
analog sensor
test platform
cable
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Expired - Fee Related
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CN201410645939.3A
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Chinese (zh)
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CN104360193A (en
Inventor
雷林绪
赵波
赵鹏程
王忠强
吴恒天
崔翔
刘骁繁
焦重庆
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State Grid Corp of China SGCC
North China Electric Power University
State Grid Henan Electric Power Co Ltd
Smart Grid Research Institute of SGCC
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State Grid Corp of China SGCC
North China Electric Power University
State Grid Henan Electric Power Co Ltd
Smart Grid Research Institute of SGCC
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Abstract

The invention discloses an electromagnetic disturbance simulation test platform of a transformer substation secondary system, and belongs to the technical field of electromagnetic compatibility of transformer substation secondary equipment. A first electromagnetic disturbance measuring system, a first simulation sensor, a basin-type insulator and a second simulation sensor of the electromagnetic disturbance simulation test platform are distributed at the different positions on a GIS pipeline outer shell, and the GIS pipeline outer shell is connected with an outer shell of a simulation remittance control component cabinet through a plastic coated metal hose. A secondary cable of the first simulation sensor and a secondary cable of the second simulation sensor penetrate through the plastic coated metal hose to be connected with the electromagnetic disturbance measuring system. According to the electromagnetic disturbance simulation test platform, the actual transient state electromagnetic environment of a transformer substation can be simulated conveniently and truly, and electromagnetic disturbance caused by different sources is researched; meanwhile the electromagnetic disturbance suffered by the secondary system under different loads and different grounding modes can be studied comprehensively.

Description

A kind of electromagnetic disturbance analogue test platform of transformer station secondary system
Technical field
The invention belongs to the technical field of electromagnetic compatibility of substation secondary device, more particularly to a kind of transformer station secondary system Electromagnetic disturbance analogue test platform.
Background technology
The short trouble of transformer station, the lightning impulse and switching manipulation meeting electromagnetism different degrees of to electrical secondary system generation is disturbed Disturb, the safe operation to transformer station secondary system constitutes very big threat.Because carrying out short trouble, thunder in actual transformer station Surge and switching manipulation test have very big difficulty, and test number (TN) is also much limited, therefore it is to solve to ask to build test platform The effective way of topic.Say from the angle of research, the different earthing mode of electrical secondary system, different load level is to being disturbed Impact is still not clear, it is necessary to carry out experimental study to seek optimized electrical secondary system earthing mode and matched load.This The electromagnetic disturbance analogue test platform of the transformer station secondary system of bright offer can really reflect the transient state electricity of actual transformer station Magnetic environment, to different loads, electromagnetic disturbance suffered by the electrical secondary system under different earthing modes carries out testing experiment.
The content of the invention
It is an object of the invention to provide a kind of electromagnetic disturbance analogue test platform of transformer station secondary system, its feature exists In the concrete structure of the electromagnetic disturbance analogue test platform of transformer station secondary system is the first electromagnetic disturbance measuring system 8, first Analog sensor 1, disc insulator 2, the second analog sensor 3 are arranged on the shell of GIS (air insulating device) pipeline 4 not Same position, the shell of GIS pipelines 4 controls the cage connection of component cabinet 9 by plastic coated metal hose 7 and simulation remittance;First analog sensed The shell of device 1 is by the cage connection of 5 and first electromagnetic disturbance measuring system of measurement lead 8;First analog sensor 1 and the second mould The secondary cable 10 for intending sensor 3 passes through plastic coated metal hose 7;The SA1 ends of the first analog sensor 1, SA2 are electric with first respectively Magnetic harassing and wrecking measuring system 8, the first matched load 18, the one end of secondary cable 10 connection of the first analog sensor 1;First simulation is passed The other end of the secondary cable 10 of sensor 1 is overlapped on disc insulator 2 rear and the 3rd electromagnetic disturbance measuring system 13 and simulation A1, A2 end connection of remittance control component cabinet 9;The SB1 ends of the second analog sensor 3, SB2 ends connect the second matched load 17 and second One end of secondary cable 10 of analog sensor 3, the other end connection simulation remittance control group of the secondary cable 10 of the second analog sensor 3 B1, B2 end of part cabinet 9;The grounding copper bar that the secondary cable shielding layer connection simulation of the first analog sensor 1 converges in control component cabinet 9 G1 ends, the secondary cable shielding layer of the second analog sensor 3 is converged in control assembly cabinet 9 by the connection simulation of first switch K 1 Grounding copper bar G2 ends;Distant place relay protection room 15 the interior power input of simulation remittance control assembly cabinet 9 is accessed by feed cable 14.
The GIS conduit enclosures are fixed by lead 6 in the 3rd switch K3 connections, upper lead 6 with grounded screen 11.
The GIS pipelines are fixed by grounded bracket 16 with grounded screen 11.
The plastic coated metal hose is fixed by lead 6 in second switch K2 connections, upper lead 6 with grounded screen 11.
In the electromagnetic disturbance analogue test platform of the transformer station secondary system, GIS pipeline center guide rod internal-and external diameter and pipe Wall internal-and external diameter is by actual difference electric pressure design;The design of actual pipeline be by 220kV design, length 10-12 meters it Between, point 3 to 4 intervals;Wherein, the electric pressure of China is divided into:110kV、220kV、330kV、500kV、660kV、1000kV.
The grounded bracket can be adjusted to ground level according to test requirements document, and can adjust the optional position ground connection in pipeline.
The grounded screen possesses the upper lead of grid of different sizes and abundance, and test platform can be in the online shift position in ground And direction.
The seam that component cabinet is controlled in plastic coated metal hose and analog sensor and simulation remittance, is connect using DPJ ends formula Head connection, plays good waterproof and effectiveness;It is fire-retardant because of its good waterproof, insulation and tensile property and in reality Border transformer station obtains extensively application.
The different type of the analog sensor sensor and with tube wall be electrically connected or be not connected to;Simulation converges controls component cabinet Earthing mode is selected according to test requirements document.
The secondary cable includes the control cable of KVVP pvc sheath braid shieldeds, Shielded Twisted Pair and coaxial electrical Cable.Secondary cable shielding layer has 4 kinds of earthing modes:Sensor side is grounded, and simulation remittance control component cabinet end is earth-free;Sensor side is not Ground connection, simulation converges controls component cabinet end ground connection;Secondary cable shielding layer two sides earth and secondary cable shielding layer both-end are earth-free.
Matched load between the secondary cable for open circuit, short circuit or 50 ohm.
The invention has the beneficial effects as follows the Transient Electromagnetic environment of actual transformer station conveniently can be really simulated, to not homologous The electromagnetic disturbance for causing launches research;While different loads can be comprehensively studied, suffered by the electrical secondary system under different earthing modes Electromagnetic disturbance.
Description of the drawings
Fig. 1 is the electromagnetic disturbance analogue test platform structural representation of transformer station secondary system.
Fig. 2 is secondary cable ground connection in the electromagnetic disturbance analogue test platform of transformer station secondary system and matched load connection Schematic diagram.
Fig. 3 is analogue test platform diverse location and operating mode schematic diagram in grounded screen.
Specific embodiment
The present invention provides a kind of electromagnetic disturbance analogue test platform of transformer station secondary system, with reference to Fig. 1-3, to sending out It is bright to be described further:
Shown in electromagnetic disturbance analogue test platform structural representation and Fig. 2 in the transformer station secondary system shown in Fig. 1 In the electromagnetic disturbance analogue test platform of transformer station secondary system secondary cable ground connection and matched load connection diagram in, power transformation The concrete structure of the electromagnetic disturbance analogue test platform of electrical secondary system of standing is that the first electromagnetic disturbance measuring system 8, first simulates biography Sensor 1, disc insulator 2, the second analog sensor 3 are arranged in the diverse location on the shell of GIS pipelines 4, the shell of GIS pipelines 4 The cage connection of component cabinet 9 is controlled by plastic coated metal hose 7 and simulation remittance;The shell of the first analog sensor 1 is drawn by measurement The cage connection of 5 and first electromagnetic disturbance measuring system of line 8;GIS pipelines are fixed by grounded bracket 16 with grounded screen 11;GIS is managed Road shell is fixed by lead 6 in the 3rd switch K3 connections, upper lead 6 with grounded screen 11.First analog sensor 1 and the second mould The secondary cable 10 for intending sensor 3 passes through plastic coated metal hose 7;The SA1 ends of the first analog sensor 1, SA2 are electric with first respectively Magnetic harassing and wrecking measuring system 8, the first matched load 18, the one end of secondary cable 10 connection of the first analog sensor 1;First simulation is passed The other end of the secondary cable 10 of sensor 1 is overlapped on disc insulator 2 rear and the 3rd electromagnetic disturbance measuring system 13 and simulation A1, A2 end connection of remittance control component cabinet 9;The SB1 ends of the second analog sensor 3, SB2 ends connect the second matched load 17 and second One end of secondary cable 10 of analog sensor 3, the other end connection simulation remittance control group of the secondary cable 10 of the second analog sensor 3 B1, B2 end of part cabinet 9;The grounding copper bar that the secondary cable shielding layer connection simulation of the first analog sensor 1 converges in control component cabinet 9 G1 ends, the secondary cable shielding layer of the second analog sensor 3 connects connecing in simulation remittance control assembly cabinet 9 by first switch K1 Ground copper bar G2 ends;Simulation relay protection room 15 the interior power input of simulation remittance control assembly cabinet 9 is accessed by feed cable 14;Wherein two Matched load between secondary cable for open circuit, short circuit or 50 ohm.
The plastic coated metal hose is fixed by lead 6 in second switch K2 connections, upper lead 6 with grounded screen 11.
In the electromagnetic disturbance analogue test platform of the transformer station secondary system, GIS pipeline center guide rod internal-and external diameter and pipe Wall internal-and external diameter presses the GIS transformer stations difference electric pressure design of actual difference electric pressures, and length divides 3 between 10-12 meters To 4 intervals.The grounded bracket can be adjusted to ground level according to test requirements document, and be can adjust and connect in the optional position of pipeline Ground.
The seam of the plastic coated metal hose and analog sensor and simulation remittance control component cabinet, using DPJ ends formula joint Connection, plays good waterproof and effectiveness;It is fire-retardant because of its good waterproof, insulation and tensile property and in reality Transformer station obtains extensively application.
The analogue test platform as shown in Figure 3 diverse location schematic diagram in grounded screen, the grounded screen 11 possesses size The upper lead 6 of different grid and abundance, test platform can in grounded screen 11 shift position and direction.
The different type of the analog sensor sensor and with tube wall be electrically connected or be not connected to;Simulation converges controls component cabinet Earthing mode is selected according to test requirements document;The secondary cable includes that KVVP controls cable, Shielded Twisted Pair and coaxial cable.Two Secondary cable shield has 4 kinds of earthing modes:It is controlled by three switches, sensor side ground connection, simulation converges control component cabinet end not Ground connection;Sensor side is earth-free, and simulation converges controls component cabinet end ground connection;Secondary cable shielding layer two sides earth and secondary cable screen Cover layer both-end earth-free.
Tested in the electromagnetic disturbance analogue test platform of above-mentioned transformer station secondary system:
Operating mode 1, is applied with rushing that ns levels forward position and more than 10kV export on GIS conduit enclosures using steep wave power supply 19 Voltage is hit, the electromagnetic disturbance to transformer station secondary system is tested.
Operating mode 2, connects strong current generator in grounded screen 11, and the maximum output of strong current generator is up to 100kA;Survey Electromagnetic disturbance of the examination to transformer station secondary system.
Operating mode 3, using output field intensity up to the EMP pulse generators of 75kV/m, in GIS pipelines overhead the strong arteries and veins in space is carried out Punching interference, tests the electromagnetic disturbance to transformer station secondary system.

Claims (4)

1. a kind of analogue test platform of transformer station secondary system electromagnetic disturbance, it is characterised in that transformer station secondary system electromagnetism The concrete structure of the analogue test platform of harassing and wrecking is the first electromagnetic disturbance measuring system (8), the first analog sensor (1), benzvalene form Insulator (2), the second analog sensor (3) are arranged in the diverse location on GIS pipelines (4) shell, and GIS pipelines (4) shell leads to (7 control the cage connection of component cabinet (9) with remittance is simulated to cross plastic coated metal hose;The shell of the first analog sensor (1) is by measurement Lead (5) and the first electromagnetic disturbance measuring system (8) cage connection;First analog sensor (1) and the second analog sensor (3) Secondary cable (10) through plastic coated metal hose (7);SA1 ends, the SA2 of the first analog sensor (1) respectively with the first electromagnetism Harassing and wrecking measuring system (8), (secondary cable (10) one end connection of the 18, first analog sensor (1) of the first matched load;First The other end of the secondary cable (10) of analog sensor (1) is measured after being overlapped on disc insulator (2) with the 3rd electromagnetic disturbance A1, A2 end connection of system (13) and simulation remittance control component cabinet (9);Second analog sensor (3 SB1 ends, SB2 ends connection the Secondary cable (10) one end of two matched loads (17) and the second analog sensor (3);Wherein, the matched load between secondary cable For open circuit, short circuit or 50 ohm;The other end connection simulation of the secondary cable (10) of the second analog sensor (3) converges controls component cabinet (9) B1, B2 end;The grounding copper that the secondary cable shielding layer connection simulation of the first analog sensor (1) converges in control component cabinet (9) Row G1 ends, the secondary cable shielding layer of the second analog sensor (3) is by first switch (K1) connection simulation remittance control assembly cabinet (9) the grounding copper bar G2 ends in;Distant place relay protection room (15) electricity in simulation remittance control assembly cabinet (9) is accessed by feed cable (14) Source input;GIS conduit enclosures are by lead (6) in the 3rd switch (K3) connection, and upper lead (6) is fixed with grounded screen (11); The plastic coated metal hose is by lead (6) in second switch (K2) connection, and upper lead (6) is fixed with grounded screen (11);It is described GIS pipelines are fixed with grounded screen (11) by grounded bracket (16).
2. a kind of analogue test platform of transformer station secondary system electromagnetic disturbance according to claim 1, it is characterised in that institute In stating the analogue test platform of transformer station secondary system electromagnetic disturbance, GIS pipeline center guide rod internal-and external diameter and tube wall internal-and external diameter are pressed The GIS transformer stations difference electric pressure design of actual difference electric pressure, the design of actual pipeline is designed by 220kV, length Between 10-12 meters, point 3 to 4 intervals;Wherein, the electric pressure of China is divided into:110kV、220kV、330kV、500kV、 660kV、1000kV。
3. a kind of analogue test platform of transformer station secondary system electromagnetic disturbance according to claim 1, it is characterised in that institute State the different type of analog sensor sensor and be electrically connected or be not connected to tube wall;Simulation converges control component cabinet will according to test Seek selection earthing mode.
4. a kind of analogue test platform of transformer station secondary system electromagnetic disturbance according to claim 1, it is characterised in that institute State control cable of the secondary cable including KVVP pvc sheath braid shieldeds, Shielded Twisted Pair and coaxial cable;Secondary electricity Cable screen layer has 4 kinds of earthing modes:Sensor side is grounded, and simulation remittance control component cabinet end is earth-free;Sensor side is earth-free, simulation Converge and control component cabinet end ground connection;Secondary cable shielding layer two sides earth and secondary cable shielding layer both-end are earth-free.
CN201410645939.3A 2014-11-12 2014-11-12 Electromagnetic disturbance simulation test platform of transformer substation secondary system Expired - Fee Related CN104360193B (en)

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Publication number Priority date Publication date Assignee Title
CN108493634B (en) * 2018-05-21 2019-08-02 中国电力科学研究院有限公司 A kind of earthing or grounding means inhibiting electromagnetic disturbance
CN110275078B (en) * 2019-07-16 2021-10-15 国网江苏省电力有限公司电力科学研究院 Method and system for distinguishing secondary cable ground loop disturbance of transformer substation and storage medium
CN113219286A (en) * 2021-05-19 2021-08-06 国网电力科学研究院有限公司 Multi-stage electromagnetic disturbance measurement system, method, equipment and storage medium of electric intelligent equipment

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CN203117313U (en) * 2012-12-28 2013-08-07 中国电力科学研究院 Dynamic simulation and emulation detecting platform for intelligent substation secondary system
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CN101881813A (en) * 2010-06-17 2010-11-10 国网电力科学研究院 Method for simulating GIS transformer substation to produce very fast transient overvoltage (VFTO) and test circuit
CN102590678A (en) * 2012-02-27 2012-07-18 华北电力大学 Electromagnetic disturbance measurement system for secondary system of alternating current power transmission line series compensation device platform
CN102608401A (en) * 2012-03-06 2012-07-25 华北电力大学 Measurement system and measurement method for disturbance voltage and disturbance current of GIS (gas insulated switchgear) secondary system
CN203117313U (en) * 2012-12-28 2013-08-07 中国电力科学研究院 Dynamic simulation and emulation detecting platform for intelligent substation secondary system
CN203572868U (en) * 2013-11-29 2014-04-30 华北电力大学 System used for measuring interference voltage of intelligent assembly of transformer station GIS

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