CN106385010A - 一种特高压直流接地极引线双端不平衡保护方法 - Google Patents
一种特高压直流接地极引线双端不平衡保护方法 Download PDFInfo
- Publication number
- CN106385010A CN106385010A CN201610813793.8A CN201610813793A CN106385010A CN 106385010 A CN106385010 A CN 106385010A CN 201610813793 A CN201610813793 A CN 201610813793A CN 106385010 A CN106385010 A CN 106385010A
- Authority
- CN
- China
- Prior art keywords
- current
- high voltage
- electrode lead
- protection
- unbalance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
Landscapes
- Locating Faults (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
Description
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610813793.8A CN106385010A (zh) | 2016-09-09 | 2016-09-09 | 一种特高压直流接地极引线双端不平衡保护方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610813793.8A CN106385010A (zh) | 2016-09-09 | 2016-09-09 | 一种特高压直流接地极引线双端不平衡保护方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN106385010A true CN106385010A (zh) | 2017-02-08 |
Family
ID=57935690
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201610813793.8A Pending CN106385010A (zh) | 2016-09-09 | 2016-09-09 | 一种特高压直流接地极引线双端不平衡保护方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN106385010A (zh) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108647438A (zh) * | 2018-05-10 | 2018-10-12 | 四川大学 | 一种新型土壤等效电阻模型建模方法 |
CN109301801A (zh) * | 2018-11-21 | 2019-02-01 | 国家电网有限公司 | 一种互用接地极接线结构及双极中性线差动保护动作方法 |
CN109444670A (zh) * | 2018-12-21 | 2019-03-08 | 青岛科汇电气有限公司 | 一种直流输电系统中接地极线路的故障测距系统及方法 |
CN111313440A (zh) * | 2020-02-11 | 2020-06-19 | 南方电网科学研究院有限责任公司 | 一种多端直流输电系统接地极线路不平衡保护方法及装置 |
CN111323731A (zh) * | 2020-03-30 | 2020-06-23 | 珠海优特电力科技股份有限公司 | 接地装置的故障检测方法和装置、存储介质 |
CN116260104A (zh) * | 2023-05-15 | 2023-06-13 | 中国南方电网有限责任公司超高压输电公司广州局 | 换流站的接地极线路断线保护方法、装置和计算机设备 |
-
2016
- 2016-09-09 CN CN201610813793.8A patent/CN106385010A/zh active Pending
Non-Patent Citations (3)
Title |
---|
曾祥君等: "高压直流输电系统接地极不平衡保护改进措施研究", 《电力系统保护与控制》 * |
束洪春等: "接地极线路短路故障快速识别及故障测距研究", 《电网技术》 * |
邵震等: "南方电网直流输电系统接地极不平衡保护动作策略分析", 《广东电力》 * |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108647438A (zh) * | 2018-05-10 | 2018-10-12 | 四川大学 | 一种新型土壤等效电阻模型建模方法 |
CN108647438B (zh) * | 2018-05-10 | 2021-07-30 | 四川大学 | 一种土壤等效电阻模型建模方法 |
CN109301801A (zh) * | 2018-11-21 | 2019-02-01 | 国家电网有限公司 | 一种互用接地极接线结构及双极中性线差动保护动作方法 |
CN109301801B (zh) * | 2018-11-21 | 2023-09-29 | 国家电网有限公司 | 一种互用接地极接线结构及双极中性线差动保护动作方法 |
CN109444670A (zh) * | 2018-12-21 | 2019-03-08 | 青岛科汇电气有限公司 | 一种直流输电系统中接地极线路的故障测距系统及方法 |
CN111313440A (zh) * | 2020-02-11 | 2020-06-19 | 南方电网科学研究院有限责任公司 | 一种多端直流输电系统接地极线路不平衡保护方法及装置 |
CN111323731A (zh) * | 2020-03-30 | 2020-06-23 | 珠海优特电力科技股份有限公司 | 接地装置的故障检测方法和装置、存储介质 |
CN111323731B (zh) * | 2020-03-30 | 2022-08-19 | 珠海优特电力科技股份有限公司 | 接地装置的故障检测方法和装置、存储介质 |
CN116260104A (zh) * | 2023-05-15 | 2023-06-13 | 中国南方电网有限责任公司超高压输电公司广州局 | 换流站的接地极线路断线保护方法、装置和计算机设备 |
CN116260104B (zh) * | 2023-05-15 | 2023-08-04 | 中国南方电网有限责任公司超高压输电公司广州局 | 换流站的接地极线路断线保护方法、装置和计算机设备 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN106385010A (zh) | 一种特高压直流接地极引线双端不平衡保护方法 | |
US11435409B2 (en) | Temporary overvoltage and ground fault overvoltage protection based on arrester current measurement and analysis | |
US8823307B2 (en) | System for detecting internal winding faults of a synchronous generator, computer program product and method | |
US8942954B2 (en) | Fault location in a non-homogeneous electric power line | |
US20160103157A1 (en) | Ratio metric current measurement | |
KR100473798B1 (ko) | 전력 계통의 1선 지락 고장 지점 검출 방법 | |
CN105372616B (zh) | 一种cvt状态在线测试系统及在线评估方法 | |
SE536143C2 (sv) | Metod för att detektera jordfel i trefas elkraftdistributionsnät | |
WO2019127440A1 (zh) | 一种直流电弧的处理方法及装置 | |
US9791496B2 (en) | System and method for detecting, localizing and quantifying excess voltage drop in three-phase AC circuits | |
CN105954632A (zh) | 一种氧化锌避雷器在线监测与诊断方法 | |
CN109923423A (zh) | 用于故障检测的方法、系统和设备 | |
CN105655986B (zh) | 自动校准、动态补偿的电容器组不平衡保护方法及装置 | |
CN106405305A (zh) | 零线断相检测电路和检测零线断相的方法 | |
JP5444122B2 (ja) | 非接地系電路の地絡検出装置とこれを用いた地絡保護継電器及び地絡検出方法 | |
CN104090211B (zh) | 一种配电线路高阻接地故障的在线检测方法 | |
JP2019032315A (ja) | 地絡要因判定方法 | |
US8160195B2 (en) | Phase drift compensation for sampled signals | |
CN104833841B (zh) | 一种变电站侵入过电压检测方法 | |
Kumar et al. | A new digital distance relaying algorithm for first-zone protection for series-compensated double-circuit transmission lines | |
CN110441645A (zh) | 一种工业控制用漏电检测方法及其调节系统 | |
CN103199509B (zh) | 基于双端正序基频分量的输电线路故障继电保护方法 | |
Ma et al. | A novel model recognition-based current differential protection in time-domain | |
CN114636883A (zh) | 基于交流量的电力系统故障确定方法、装置及存储介质 | |
CN104730417B (zh) | 一种以负序电流为极化量的输电线路单端测距方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
TA01 | Transfer of patent application right | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20180428 Address after: 211102 Suyuan Avenue, Jiangning District, Nanjing, Jiangsu Province, No. 69 Applicant after: Nanjing Nari-Relays Engineering Technology Co., Ltd. Applicant after: State Grid Shanghai Municipal Electric Power Company Address before: 211102 Suyuan Avenue, Jiangning District, Nanjing, Jiangsu Province, No. 69 Applicant before: Nanjing Nari-Relays Engineering Technology Co., Ltd. |
|
WD01 | Invention patent application deemed withdrawn after publication | ||
WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170208 |