CN109541382A - Single-phase earth fault current flexible control method and device based on controllable voltage source - Google Patents
Single-phase earth fault current flexible control method and device based on controllable voltage source Download PDFInfo
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- CN109541382A CN109541382A CN201910111980.5A CN201910111980A CN109541382A CN 109541382 A CN109541382 A CN 109541382A CN 201910111980 A CN201910111980 A CN 201910111980A CN 109541382 A CN109541382 A CN 109541382A
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- 238000000034 method Methods 0.000 title claims abstract description 40
- 230000007935 neutral effect Effects 0.000 claims abstract description 21
- 230000005611 electricity Effects 0.000 claims description 8
- 238000012545 processing Methods 0.000 abstract description 5
- 238000009527 percussion Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 5
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/086—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution networks, i.e. with interconnected conductors
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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
- H02H7/28—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 for meshed systems
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
Description
Claims (10)
Priority Applications (1)
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CN201910111980.5A CN109541382B (en) | 2019-02-13 | 2019-02-13 | Single-phase earth fault current flexible control method and device based on controllable voltage source |
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CN201910111980.5A CN109541382B (en) | 2019-02-13 | 2019-02-13 | Single-phase earth fault current flexible control method and device based on controllable voltage source |
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CN109541382A true CN109541382A (en) | 2019-03-29 |
CN109541382B CN109541382B (en) | 2020-06-30 |
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CN201910111980.5A Active CN109541382B (en) | 2019-02-13 | 2019-02-13 | Single-phase earth fault current flexible control method and device based on controllable voltage source |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109818344A (en) * | 2019-04-02 | 2019-05-28 | 云南电网有限责任公司电力科学研究院 | A kind of full compensation method of controllable current source ground fault with inductance compensation |
CN110261720A (en) * | 2019-08-06 | 2019-09-20 | 云南电网有限责任公司电力科学研究院 | The single-phase earthing method of discrimination and device of distribution net work earthing fault |
CN112701658A (en) * | 2020-12-28 | 2021-04-23 | 东南大学 | Composite grounding device based on active inversion voltage regulation and small resistor |
Citations (6)
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CN201038754Y (en) * | 2007-03-16 | 2008-03-19 | 长沙理工大学 | Distribution network neutral point earthing resistance measuring and control device |
JP2013199874A (en) * | 2012-03-26 | 2013-10-03 | Hitachi Automotive Systems Ltd | Load driving device |
EP2599180B1 (en) * | 2010-07-27 | 2014-10-08 | Západoceská Univerzita V Plzni | The apparatus compensating ground currents connected to phase conductors of a distribution system |
CN106602540A (en) * | 2016-12-06 | 2017-04-26 | 国网山东省电力公司莱芜供电公司 | Active voltage arc-extinction method applicable to single-phase earth fault of medium voltage distribution network |
CN106802361A (en) * | 2017-02-21 | 2017-06-06 | 国家电网公司 | A kind of capacitance current measurement method and system of distribution mixed connection ground connection operation |
CN109167345A (en) * | 2018-09-26 | 2019-01-08 | 云南电网有限责任公司电力科学研究院 | A kind of ground fault arc-suppressing method and device based on controllable voltage source |
-
2019
- 2019-02-13 CN CN201910111980.5A patent/CN109541382B/en active Active
Patent Citations (6)
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---|---|---|---|---|
CN201038754Y (en) * | 2007-03-16 | 2008-03-19 | 长沙理工大学 | Distribution network neutral point earthing resistance measuring and control device |
EP2599180B1 (en) * | 2010-07-27 | 2014-10-08 | Západoceská Univerzita V Plzni | The apparatus compensating ground currents connected to phase conductors of a distribution system |
JP2013199874A (en) * | 2012-03-26 | 2013-10-03 | Hitachi Automotive Systems Ltd | Load driving device |
CN106602540A (en) * | 2016-12-06 | 2017-04-26 | 国网山东省电力公司莱芜供电公司 | Active voltage arc-extinction method applicable to single-phase earth fault of medium voltage distribution network |
CN106802361A (en) * | 2017-02-21 | 2017-06-06 | 国家电网公司 | A kind of capacitance current measurement method and system of distribution mixed connection ground connection operation |
CN109167345A (en) * | 2018-09-26 | 2019-01-08 | 云南电网有限责任公司电力科学研究院 | A kind of ground fault arc-suppressing method and device based on controllable voltage source |
Non-Patent Citations (1)
Title |
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虞坚阳 等: "主动配电网智能分布式馈线自动化故障定位方法", 《南方电网技术》 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109818344A (en) * | 2019-04-02 | 2019-05-28 | 云南电网有限责任公司电力科学研究院 | A kind of full compensation method of controllable current source ground fault with inductance compensation |
CN110261720A (en) * | 2019-08-06 | 2019-09-20 | 云南电网有限责任公司电力科学研究院 | The single-phase earthing method of discrimination and device of distribution net work earthing fault |
CN112701658A (en) * | 2020-12-28 | 2021-04-23 | 东南大学 | Composite grounding device based on active inversion voltage regulation and small resistor |
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CN109541382B (en) | 2020-06-30 |
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Inventor after: Cai Xiaobin Inventor after: Liu Hongwen Inventor after: Zhao Xianping Inventor after: Jiang Hongyun Inventor after: Wang Ke Inventor after: Li Wenyun Inventor after: Shen Long Inventor after: Zhang Gongyuan Inventor before: Liu Hongwen Inventor before: Wang Ke Inventor before: Chai Chenchao |
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Application publication date: 20190329 Assignee: Hebei Xuhui Electric Co.,Ltd. Assignor: ELECTRIC POWER RESEARCH INSTITUTE, YUNNAN POWER GRID Co.,Ltd. Contract record no.: X2023980053584 Denomination of invention: Flexible control method and device for single-phase grounding fault current based on controllable voltage source Granted publication date: 20200630 License type: Common License Record date: 20231221 Application publication date: 20190329 Assignee: Changsha Jingke Electric Technology Co.,Ltd. Assignor: ELECTRIC POWER RESEARCH INSTITUTE, YUNNAN POWER GRID Co.,Ltd. Contract record no.: X2023980053583 Denomination of invention: Flexible control method and device for single-phase grounding fault current based on controllable voltage source Granted publication date: 20200630 License type: Common License Record date: 20231221 |
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EE01 | Entry into force of recordation of patent licensing contract |