CN104391193A - Simulative testing method for electromagnetic disturbance of intelligent components of gas insulated substation - Google Patents
Simulative testing method for electromagnetic disturbance of intelligent components of gas insulated substation Download PDFInfo
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- CN104391193A CN104391193A CN201410645364.5A CN201410645364A CN104391193A CN 104391193 A CN104391193 A CN 104391193A CN 201410645364 A CN201410645364 A CN 201410645364A CN 104391193 A CN104391193 A CN 104391193A
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Abstract
The invention discloses a simulative testing method for the electromagnetic disturbance of intelligent components of a gas insulated substation belongs to the technical field of the electromagnetic compatibility of substation secondary equipment. The simulative testing method comprises the steps of firstly, arranging a simulation sensor, a secondary cable and a simulation busbar control component cabinet according to an actual secondary system connection mode at the site of the GIS, connecting an electromagnetic disturbance measuring system to the end of the simulation sensor and the end of the simulation busbar control component cabinet, and during the switching operation of the GIS, measuring and recording the electromagnetic disturbance of voltages and currents at the two ends of the simulation sensor and the simulation busbar control component cabinet. The simulative testing method for the electromagnetic disturbance of the intelligent components of the GIS is capable of obtaining reliable test data without damaging the original secondary system of the GIS.
Description
Technical field
The invention belongs to substation secondary device technical field of electromagnetic compatibility, particularly a kind of analog detection method of gas insulated transformer substation intelligent assembly electromagnetic disturbance.
Background technology
Intelligent grid is the new advancement that world today's power system development is changed, and is considered to great scientific and technical innovation and the development trend of 21 century electric system.According to China's energy development strategy, future will based on intelligent grid construction.Large quantities of intelligent substation pilot project drops into builds, and also make the demand of intelligent power equipment sharply increase, its application prospect is very wide.
The organic whole that intelligent power equipment is made up of high-tension apparatus, sensor, controller and intelligent assembly, has status visualization, measures the principal character of digitizing, net control, function integration and information interaction.Intelligent assembly is the set of the intelligent electronic device bearing all or part of functions such as host equipment measurement of correlation, control, metering, detection, protection, is the intelligentized core component of high-tension apparatus.The safe operation of intelligent assembly is most important for intelligent grid, and the popularization of intelligent assembly and use face the threat of GIS transformer station complex electromagnetic environment.The core component of intelligent assembly is operated in a lower voltage (representative value+5V/+3.3V), and the primary equipment periphery of residing environment hundreds of kV that is operating voltage, the demand strengthening its protection is tacit.And intelligent assembly may faced by full spectrum of threats in, the electromagnetic disturbance that switching operation in substation causes is a subject matter.
Nowadays, still lack the measuring study to electromagnetic disturbance suffered by actual GIS intelligent substation assembly both at home and abroad, main difficulty is, the intelligent assembly of actual transformer station is most important, introduces measuring system and directly carries out measuring study to it and be difficult to be permitted.In order to evade this point, the present invention contribute to the analog detection method of a kind of GIS (Electrode in Gas Insulated System) intelligent substation assembly electromagnetic disturbance, under the prerequisite not destroying the original electrical secondary system of GIS transformer station, obtains believable test data simultaneously.
Summary of the invention
The object of the invention is to provide a kind of analog detection method of gas insulated transformer substation intelligent assembly electromagnetic disturbance, it is characterized in that, specifically comprises following steps:
Step 1: lay analog sensor by the actual electrical secondary system mode of connection at GIS substation field, secondary cable and simulation remittance Control Component cabinet;
Step 2: secondary cable shielding layer is according to actual substation grounding mode ground connection, and secondary cable is according to dissimilar analog sensor and actual sensor, and intelligent assembly type access matched load in simulation convergence control cabinet:
Step 3: enter electromagnetic disturbance measuring system at analog sensor end and simulation convergence control cabinet termination;
During step 4:GIS switching operation in substation, survey the electromagnetic disturbance at record analog sensor and simulation convergence control cabinet two ends: disturbance voltage and harassing and wrecking electric current.
In described step 1, analog sensor is arranged in the diverse location of GIS pipeline, according to the electrical connection of the dissimilar of sensor and tube wall or be not connected; Simulation converges Control Component cabinet local ground connection; Analog sensor and simulation remittance Control Component cabinet are connected by plastic coated metal hose; Secondary cable wears plastic coated metal hose, and two ends are converged in Control Component cabinet at analog sensor and simulation respectively; Secondary cable cabling is arranged along actual cable duct of substation; Wherein, plastic coated metal hose has certain electromagnetic shielding action, because of the waterproof that it is good, fire-retardant, insulation and tensile property and in the acquisition widespread use of actual transformer station; Converge the interface of Control Component cabinet at plastic coated metal hose and analog sensor and simulation, adopt waterproof to be connected with electromagnetic shielding type joint, play good waterproof and effectiveness.
In described step 2, secondary cable shielding layer is earth-free at analog sensor end, simulation convergence control cabinet end ground connection.
In described step 2, secondary cable is according to different analog sensors and actual sensor, and in simulation convergence control cabinet, the type of intelligent assembly connects different matched loads; Described matched load is open circuit or 50 ohm load.
In described step 3, electromagnetic disturbance measuring system needs and analog sensor and simulate convergence control cabinet 360 degree electrical connection; Described 360 degree of electrical connections refer to junction without electromagnetic leakage, ensure overall single-point grounding, do not reduce the shield effectiveness of analog sensor and simulation convergence control cabinet.
In described step 3, electromagnetic disturbance measuring system need meet following performance index: measure amplitude and be not less than 5kV, sampling rate is not less than 1G, and bandwidth is not less than 300M, and storage depth is not less than 125M, will possess autonomous power supply system simultaneously, and the working time is not less than 8 hours.
In described step 4, the switching manipulation of GIS transformer station be limber up period test, maintenance time technicality test, or normal grid switching operation when running, comprises separating brake and combined floodgate, total degree >=6 time.
The invention has the beneficial effects as follows under the prerequisite not destroying the original electrical secondary system of GIS transformer station, utilize electromagnetic environment and the switching manipulation of substation field, believable test data can be obtained, study electromagnetic disturbance level suffered by dissimilar sensor and intelligent assembly, for manufacturing and designing of substation secondary device provides reference and guidance.
Accompanying drawing explanation
Fig. 1 is the analog detection method process flow diagram of GIS intelligent substation assembly electromagnetic disturbance.
Fig. 2 is the simulated testing system schematic diagram of GIS intelligent substation assembly electromagnetic disturbance.
Fig. 3 is GIS transformer station secondary system earthing mode schematic diagram.
Embodiment
The invention provides a kind of analog detection method of gas insulated transformer substation intelligent assembly electromagnetic disturbance, illustrate preferred embodiment of the present invention below in conjunction with accompanying drawing.
The analog detection method process flow diagram of GIS intelligent substation assembly electromagnetic disturbance as shown in Figure 1.The analog detection method that the invention provides gas insulated transformer substation intelligent assembly electromagnetic disturbance specifically comprises following steps:
Step 1: lay analog sensor 1 by the actual electrical secondary system mode of connection at GIS substation field, secondary cable 10 and simulation convergence control cabinet 9;
Step 2: secondary cable shielding layer is according to actual substation grounding mode ground connection, secondary cable is according to dissimilar analog sensor and actual sensor, and intelligent assembly type access matched load in simulation convergence control cabinet: wherein, matched load is generally open circuit or 50 ohm load.
Step 3: enter electromagnetic disturbance measuring system 8 at analog sensor 1 end and simulation convergence control cabinet 9 termination;
During step 4:GIS switching operation in substation, survey the electromagnetic disturbance at record analog sensor 1 and simulation convergence control cabinet 9 two ends: disturbance voltage and harassing and wrecking electric current.
As shown in Figure 2, the simulated testing system concrete structure of gas insulated transformer substation intelligent assembly electromagnetic disturbance is the diverse location that analog sensor 1 is arranged on GIS pipeline 4 shell, and one end of analog sensor 1 is connected with electromagnetic disturbance measuring system 8 by measuring lead-in wire 10; Electromagnetic disturbance measuring system 8 is converged each measurement terminal of Control Component cabinet 9 again and is connected with simulation; The measurement lead-in wire 10 of analog sensor 1 other end is overlapped on after on disc insulator 2 and is connected with GIS pipeline 4 shell; Actual sensor 3 is connected with GIS pipeline 4 shell; Analog sensor 1 is connected by plastic coated metal hose 7 with simulation convergence control cabinet 9, and plastic coated metal hose 7 has certain electromagnetic shielding action; Simulation convergence control cabinet 9 is local ground connection (as shown in Figure 3); Because of the waterproof that it is good, fire-retardant, insulation and tensile property and in the acquisition widespread use of actual transformer station; At the interface of plastic coated metal hose and analog sensor 1 and simulation convergence control cabinet 9, adopt waterproof to be connected with electromagnetic shielding type joint, play good waterproof and effectiveness; Secondary cable 10 wears plastic coated metal hose 7, and two ends are respectively in analog sensor 1 and simulation convergence control cabinet 9; Along actual cable duct of substation, secondary cable cabling arranges that secondary cable shielding layer 12 is earth-free at analog sensor 1 end, in simulation convergence control cabinet 9 end ground connection (as shown in Figure 3).
In described step 3, electromagnetic disturbance measuring system needs and analog sensor and simulate convergence control cabinet 360 degree electrical connection, described 360 degree of electrical connections refer to junction without electromagnetic leakage, ensure overall single-point grounding, do not reduce the shield effectiveness of analog sensor and simulation convergence control cabinet.
In described step 3, electromagnetic disturbance measuring system need meet following performance index: measure amplitude and be not less than 5kV, sampling rate is not less than 1G, and bandwidth is not less than 300M, and storage depth is not less than 125M, will possess autonomous power supply system simultaneously, and the working time is not less than 8 hours.
In described step 4, the switching manipulation of GIS transformer station be limber up period test, maintenance time technicality test, or normal grid switching operation when running, comprises separating brake and combined floodgate, total degree >=6 time.
Claims (7)
1. an analog detection method for gas insulated transformer substation intelligent assembly electromagnetic disturbance, is characterized in that, specifically comprises following steps:
Step 1: lay analog sensor by the actual electrical secondary system mode of connection at GIS substation field, secondary cable and simulation remittance Control Component cabinet;
Step 2: secondary cable shielding layer is according to actual substation grounding mode ground connection, and secondary cable is according to dissimilar analog sensor and actual sensor, and intelligent assembly type access matched load in simulation convergence control cabinet:
Step 3: enter electromagnetic disturbance measuring system at analog sensor end and simulation convergence control cabinet termination;
During step 4:GIS switching operation in substation, survey the electromagnetic disturbance at record analog sensor and simulation convergence control cabinet two ends: disturbance voltage and harassing and wrecking electric current.
2. the analog detection method of a kind of gas insulated transformer substation intelligent assembly electromagnetic disturbance according to claim 1, it is characterized in that, in described step 1, analog sensor is arranged in the diverse location of GIS pipeline, according to the electrical connection of the dissimilar of sensor and tube wall or be not connected; Simulation converges Control Component cabinet local ground connection; Analog sensor and simulation remittance Control Component cabinet are connected by plastic coated metal hose; Secondary cable wears plastic coated metal hose, and two ends are converged in Control Component cabinet at analog sensor and simulation respectively; Secondary cable cabling is arranged along actual cable duct of substation; Wherein, plastic coated metal hose has certain electromagnetic shielding action, because of the waterproof that it is good, fire-retardant, insulation and tensile property and in the acquisition widespread use of actual transformer station; Converge the interface of Control Component cabinet at plastic coated metal hose and analog sensor and simulation, adopt waterproof to be connected with electromagnetic shielding type joint, play good waterproof and effectiveness.
3. the analog detection method of a kind of gas insulated transformer substation intelligent assembly electromagnetic disturbance according to claim 1, it is characterized in that, in described step 2, secondary cable shielding layer is earth-free at analog sensor end, simulation convergence control cabinet end ground connection.
4. the analog detection method of a kind of gas insulated transformer substation intelligent assembly electromagnetic disturbance according to claim 1, it is characterized in that, in described step 2, secondary cable is according to different analog sensors and actual sensor, and in simulation convergence control cabinet, the type of intelligent assembly connects different matched loads; Described matched load is open circuit or 50 ohm load.
5. the analog detection method of a kind of gas insulated transformer substation intelligent assembly electromagnetic disturbance according to claim 1, is characterized in that, in described step 3, electromagnetic disturbance measuring system needs and analog sensor and simulate convergence control cabinet 360 degree electrical connection; Described 360 degree of electrical connections refer to junction without electromagnetic leakage, ensure overall single-point grounding, do not reduce the shield effectiveness of analog sensor and simulation convergence control cabinet.
6. the analog detection method of a kind of gas insulated transformer substation intelligent assembly electromagnetic disturbance according to claim 1, it is characterized in that, in described step 3, electromagnetic disturbance measuring system need meet following performance index: measure amplitude and be not less than 5kV, sampling rate is not less than 1G, and bandwidth is not less than 300M, and storage depth is not less than 125M, will possess autonomous power supply system, the working time is not less than 8 hours simultaneously.
7. the analog detection method of a kind of gas insulated transformer substation intelligent assembly electromagnetic disturbance according to claim 1, it is characterized in that, in described step 4, the switching manipulation of GIS transformer station be limber up period test, maintenance time technicality test, or normal grid switching operation when running, comprise separating brake and combined floodgate, total degree >=6 time.
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| CN201410645364.5A CN104391193A (en) | 2014-11-12 | 2014-11-12 | Simulative testing method for electromagnetic disturbance of intelligent components of gas insulated substation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105160172A (en) * | 2015-08-31 | 2015-12-16 | 国家电网公司 | Calculation method for electromagnetic disturbance of intelligent component ports of GIS substation |
| 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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| 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 |
| CN202948092U (en) * | 2012-12-12 | 2013-05-22 | 中国电力科学研究院 | Measurement system for transient electromagnetic interference of transformer station |
| CN103207332A (en) * | 2013-03-14 | 2013-07-17 | 四川电力科学研究院 | Method for assessing space magnetic field interference risk of substation secondary device |
| 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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2014
- 2014-11-12 CN CN201410645364.5A patent/CN104391193A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN202948092U (en) * | 2012-12-12 | 2013-05-22 | 中国电力科学研究院 | Measurement system for transient electromagnetic interference of transformer station |
| CN103207332A (en) * | 2013-03-14 | 2013-07-17 | 四川电力科学研究院 | Method for assessing space magnetic field interference risk of substation secondary device |
| 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 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105160172A (en) * | 2015-08-31 | 2015-12-16 | 国家电网公司 | Calculation method for electromagnetic disturbance of intelligent component ports of GIS substation |
| CN105160172B (en) * | 2015-08-31 | 2018-09-11 | 国家电网公司 | A kind of method of determining GIS intelligent substations component ports electromagnetic disturbance |
| 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 |
| CN113219286B (en) * | 2021-05-19 | 2024-01-30 | 国网电力科学研究院有限公司 | Multistage electromagnetic disturbance measurement system, method and equipment of electric intelligent equipment and storage medium |
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