CN107785875B - 一种计算单极接地故障时产生线路操作过电压的方法及系统 - Google Patents
一种计算单极接地故障时产生线路操作过电压的方法及系统 Download PDFInfo
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- CN107785875B CN107785875B CN201710960208.1A CN201710960208A CN107785875B CN 107785875 B CN107785875 B CN 107785875B CN 201710960208 A CN201710960208 A CN 201710960208A CN 107785875 B CN107785875 B CN 107785875B
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- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000004364 calculation method Methods 0.000 claims description 37
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- 238000013461 design Methods 0.000 description 13
- 230000005540 biological transmission Effects 0.000 description 7
- 238000009413 insulation Methods 0.000 description 4
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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
- H02H7/268—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 dc systems
-
- 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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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Emergency Protection Circuit Devices (AREA)
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CN201710960208.1A CN107785875B (zh) | 2017-10-16 | 2017-10-16 | 一种计算单极接地故障时产生线路操作过电压的方法及系统 |
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CN201710960208.1A CN107785875B (zh) | 2017-10-16 | 2017-10-16 | 一种计算单极接地故障时产生线路操作过电压的方法及系统 |
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CN107785875A CN107785875A (zh) | 2018-03-09 |
CN107785875B true CN107785875B (zh) | 2020-04-24 |
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CN109193579B (zh) * | 2018-08-29 | 2022-04-15 | 中国电力科学研究院有限公司 | 一种用于确定直流电网线路中的操作过电压的方法及系统 |
CN111130069B (zh) * | 2019-12-04 | 2022-07-26 | 中国电力科学研究院有限公司 | 一种用于对直流电网线路操作过电压进行计算的方法及系统 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105406500A (zh) * | 2015-12-18 | 2016-03-16 | 华中科技大学 | Mmc-hvdc系统直流侧单极接地故障的非对称运行控制方法 |
CN106229959A (zh) * | 2016-08-12 | 2016-12-14 | 中国电力科学研究院 | 一种特高压直流输电线路过电压抑制方法 |
CN106655237A (zh) * | 2016-12-31 | 2017-05-10 | 华中科技大学 | 多端柔性高压直流输电系统直流单极接地的故障穿越方法 |
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JP6209951B2 (ja) * | 2013-11-14 | 2017-10-11 | 富士通株式会社 | トランス接続相判定装置、方法、及びプログラム |
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105406500A (zh) * | 2015-12-18 | 2016-03-16 | 华中科技大学 | Mmc-hvdc系统直流侧单极接地故障的非对称运行控制方法 |
CN106229959A (zh) * | 2016-08-12 | 2016-12-14 | 中国电力科学研究院 | 一种特高压直流输电线路过电压抑制方法 |
CN106655237A (zh) * | 2016-12-31 | 2017-05-10 | 华中科技大学 | 多端柔性高压直流输电系统直流单极接地的故障穿越方法 |
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Address after: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15 Patentee after: CHINA ELECTRIC POWER RESEARCH INSTITUTE Co.,Ltd. Patentee after: STATE GRID CORPORATION OF CHINA Address before: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15 Patentee before: China Electric Power Research Institute Patentee before: State Grid Corporation of China |
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Effective date of registration: 20201013 Address after: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15 Patentee after: CHINA ELECTRIC POWER RESEARCH INSTITUTE Co.,Ltd. Address before: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15 Patentee before: CHINA ELECTRIC POWER RESEARCH INSTITUTE Co.,Ltd. Patentee before: STATE GRID CORPORATION OF CHINA |