CN105470931B - 一种不受母线数据不同步影响的母线差动保护方法 - Google Patents
一种不受母线数据不同步影响的母线差动保护方法 Download PDFInfo
- Publication number
- CN105470931B CN105470931B CN201510999678.XA CN201510999678A CN105470931B CN 105470931 B CN105470931 B CN 105470931B CN 201510999678 A CN201510999678 A CN 201510999678A CN 105470931 B CN105470931 B CN 105470931B
- Authority
- CN
- China
- Prior art keywords
- bus
- current
- fault
- voltage
- differential protection
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000005070 sampling Methods 0.000 claims abstract description 27
- 238000004364 calculation method Methods 0.000 claims abstract description 10
- 238000006243 chemical reaction Methods 0.000 claims abstract description 5
- 238000009434 installation Methods 0.000 claims abstract description 5
- 238000000605 extraction Methods 0.000 claims abstract 2
- 238000001914 filtration Methods 0.000 claims description 5
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 230000009466 transformation Effects 0.000 claims description 3
- 230000001052 transient effect Effects 0.000 claims description 3
- 238000004088 simulation Methods 0.000 description 13
- 238000010586 diagram Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 3
- 238000004422 calculation algorithm Methods 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 101100499229 Mus musculus Dhrsx gene Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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
- H02H7/22—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 for distribution gear, e.g. bus-bar systems; for switching devices
- H02H7/226—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 for distribution gear, e.g. bus-bar systems; for switching devices for wires or cables, e.g. heating wires
-
- 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
- H02H7/261—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 involving signal transmission between at least two stations
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
Description
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201510999678.XA CN105470931B (zh) | 2015-12-25 | 2015-12-25 | 一种不受母线数据不同步影响的母线差动保护方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201510999678.XA CN105470931B (zh) | 2015-12-25 | 2015-12-25 | 一种不受母线数据不同步影响的母线差动保护方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN105470931A CN105470931A (zh) | 2016-04-06 |
CN105470931B true CN105470931B (zh) | 2017-12-26 |
Family
ID=55608376
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201510999678.XA Active CN105470931B (zh) | 2015-12-25 | 2015-12-25 | 一种不受母线数据不同步影响的母线差动保护方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN105470931B (zh) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110661237B (zh) * | 2019-07-03 | 2021-10-29 | 天津大学 | 适用于配电网自同步条件下的电流差动保护方法 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101800441A (zh) * | 2010-03-26 | 2010-08-11 | 河南省电力公司许昌供电公司 | 数字化变电站集中式保护装置边界信息缺失的处理方法 |
CN203135427U (zh) * | 2013-03-30 | 2013-08-14 | 国家电网公司 | 变电站母差保护系统 |
CN103389422A (zh) * | 2013-07-19 | 2013-11-13 | 国家电网公司 | 线路重合闸期间非故障相母差保护误动原因的检测方法 |
CN103872667A (zh) * | 2014-03-26 | 2014-06-18 | 国家电网公司 | 一种防合并单元异常大数的线路电流差动保护方法 |
CN104393579A (zh) * | 2014-11-26 | 2015-03-04 | 国家电网公司 | 一种克服汲出电流对母线差动保护影响的方法 |
CN104638618A (zh) * | 2015-02-11 | 2015-05-20 | 国网山东省电力公司潍坊供电公司 | 一种gis母线设备跳闸快速恢复供电方法 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5645535B2 (ja) * | 2010-08-06 | 2014-12-24 | 株式会社日立製作所 | 多端子送電系統の保護継電システム |
-
2015
- 2015-12-25 CN CN201510999678.XA patent/CN105470931B/zh active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101800441A (zh) * | 2010-03-26 | 2010-08-11 | 河南省电力公司许昌供电公司 | 数字化变电站集中式保护装置边界信息缺失的处理方法 |
CN203135427U (zh) * | 2013-03-30 | 2013-08-14 | 国家电网公司 | 变电站母差保护系统 |
CN103389422A (zh) * | 2013-07-19 | 2013-11-13 | 国家电网公司 | 线路重合闸期间非故障相母差保护误动原因的检测方法 |
CN103872667A (zh) * | 2014-03-26 | 2014-06-18 | 国家电网公司 | 一种防合并单元异常大数的线路电流差动保护方法 |
CN104393579A (zh) * | 2014-11-26 | 2015-03-04 | 国家电网公司 | 一种克服汲出电流对母线差动保护影响的方法 |
CN104638618A (zh) * | 2015-02-11 | 2015-05-20 | 国网山东省电力公司潍坊供电公司 | 一种gis母线设备跳闸快速恢复供电方法 |
Non-Patent Citations (2)
Title |
---|
交流二次回路中性线阻抗对母线差动保护的影响及防范措施;邓旭阳等;《电力系统保护与控制》;20130801;第41卷(第15期);正文第148-153页 * |
基于模型参数识别的母线保护原理;索南加乐等;《中国电机工程学报》;20100805;第30卷(第22期);正文第92-99页 * |
Also Published As
Publication number | Publication date |
---|---|
CN105470931A (zh) | 2016-04-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN110488154B (zh) | 一种用于调度主站端的小电流接地选线方法 | |
CN107332216B (zh) | 一种采用自同步技术的母线差动保护方法及装置 | |
CN102768324A (zh) | 小电流接地系统单相接地故障区段定位方法 | |
CN107045093B (zh) | 基于快速s变换的小电流单相接地故障选线方法 | |
CN106786427B (zh) | 基于波形相关的风电场集电线路电流保护方法 | |
CN110783896B (zh) | 一种基于弱故障主被动联合检测的配网单相接地保护方法 | |
CN109975661A (zh) | 一种基于斯皮尔曼相关系数的输电线路故障检测方法 | |
CN103267927A (zh) | 一种利用工频分量小波系数直线拟合检测的小电流接地系统故障选线方法 | |
CN102608499A (zh) | 一种差分滤波抑制不平衡电流的小电流选线装置及控制方法 | |
CN106019173B (zh) | 一种应用于电压源换流器的实时故障检测方法 | |
CN102122811A (zh) | 数字化变电站电子式互感器双a/d采样的保护装置启动元件 | |
CN103532160A (zh) | 一种研究网架结构对改善受端交直流相互影响的分析方法 | |
CN113295966B (zh) | 早期故障类型的识别方法和装置 | |
CN105470931B (zh) | 一种不受母线数据不同步影响的母线差动保护方法 | |
CN114062846A (zh) | 一种交流输电线路保护方法及系统 | |
CN106469905B (zh) | 基于配网“三道防线”的配网保护方法 | |
CN115513917B (zh) | 一种含分布式电源配电网的综合电流幅值差动保护新方法 | |
CN109001589B (zh) | 基于非全相运行故障录波数据的线路参数时域计算方法 | |
McDermott et al. | Protection of distribution circuits with high penetration of solar pv: Distance, learning, and estimation-based methods | |
CN115663766A (zh) | 考虑电流变化量相似性的风电场送出线路保护方法 | |
CN113315100A (zh) | 一种基于卷积神经网络的微电网保护方法与系统 | |
CN107968387B (zh) | 基于阻抗平面分析正序极化电压的继电器控制方法 | |
Venkatanagaraju et al. | Synchrophasor-Based Wide Area Protection Scheme for System Stressed Conditions to Avoid Power System Blackout: Wide Area Protection Scheme for System Stressed Conditions | |
CN112345876A (zh) | 一种适用于间隔式dtu的故障定位方法及系统 | |
CN104795805B (zh) | 一种不受弱馈影响的零序方向元件防误动方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
CP03 | Change of name, title or address | ||
CP03 | Change of name, title or address |
Address after: 100031 No. 86 West Chang'an Avenue, Beijing, Xicheng District Patentee after: STATE GRID CORPORATION OF CHINA Country or region after: China Patentee after: STATE GRID SHAANXI ELECTRIC POWER Co. Patentee after: XI'AN JIAOTONG University Address before: 100031 No. 86 West Chang'an Avenue, Beijing, Xicheng District Patentee before: State Grid Corporation of China Country or region before: China Patentee before: STATE GRID SHAANXI ELECTRIC POWER Co. Patentee before: XI'AN JIAOTONG University |
|
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20240808 Address after: 100031 No. 86 West Chang'an Avenue, Beijing, Xicheng District Patentee after: STATE GRID CORPORATION OF CHINA Country or region after: China Patentee after: State Grid Shaanxi Electric Power Co.,Ltd. Patentee after: XI'AN JIAOTONG University Address before: 100031 No. 86 West Chang'an Avenue, Beijing, Xicheng District Patentee before: STATE GRID CORPORATION OF CHINA Country or region before: China Patentee before: STATE GRID SHAANXI ELECTRIC POWER Co. Patentee before: XI'AN JIAOTONG University |