CN107093890A - 一种柔性直流换流站内故障开关配置及清除方法 - Google Patents

一种柔性直流换流站内故障开关配置及清除方法 Download PDF

Info

Publication number
CN107093890A
CN107093890A CN201710406486.2A CN201710406486A CN107093890A CN 107093890 A CN107093890 A CN 107093890A CN 201710406486 A CN201710406486 A CN 201710406486A CN 107093890 A CN107093890 A CN 107093890A
Authority
CN
China
Prior art keywords
phase
switch
direct current
flexible direct
internal fault
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.)
Granted
Application number
CN201710406486.2A
Other languages
English (en)
Other versions
CN107093890B (zh
Inventor
卢宇
李钢
田杰
汪楠楠
李海英
姜崇学
随顺科
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NR Electric Co Ltd
NR Engineering Co Ltd
Original Assignee
NR Electric Co Ltd
NR Engineering Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NR Electric Co Ltd, NR Engineering Co Ltd filed Critical NR Electric Co Ltd
Priority to CN201710406486.2A priority Critical patent/CN107093890B/zh
Publication of CN107093890A publication Critical patent/CN107093890A/zh
Priority to US16/500,189 priority patent/US10923906B2/en
Priority to EP18809522.8A priority patent/EP3595116B1/en
Priority to MX2019013245A priority patent/MX2019013245A/es
Priority to RU2019136268A priority patent/RU2718619C1/ru
Priority to KR1020197026158A priority patent/KR102124287B1/ko
Priority to BR112019024168-0A priority patent/BR112019024168A2/pt
Priority to JP2019551432A priority patent/JP6784850B2/ja
Priority to DK18809522.8T priority patent/DK3595116T3/da
Priority to PCT/CN2018/087791 priority patent/WO2018219174A1/zh
Priority to CA3060024A priority patent/CA3060024C/en
Application granted granted Critical
Publication of CN107093890B publication Critical patent/CN107093890B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H02H7/10—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 converters; for rectifiers
    • H02H7/12—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 converters; for rectifiers for static converters or rectifiers
    • H02H7/125—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 converters; for rectifiers for static converters or rectifiers for rectifiers
    • 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
    • H02H7/262—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 involving transmissions of switching or blocking orders
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
    • G01R19/16571—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing AC or DC current with one threshold, e.g. load current, over-current, surge current or fault current
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
    • G01R19/16576—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing DC or AC voltage with one threshold
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R25/00—Arrangements for measuring phase angle between a voltage and a current or between voltages or currents
    • 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
    • G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/16—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to fault current to earth, frame or mass
    • H02H3/162—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to fault current to earth, frame or mass for ac systems
    • H02H3/165—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to fault current to earth, frame or mass for ac systems for three-phase systems
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/36—Arrangements for transfer of electric power between ac networks via a high-tension dc link
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/06—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
    • H02M7/062—Avoiding or suppressing excessive transient voltages or currents
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/60—Arrangements for transfer of electric power between AC networks or generators via a high voltage DC link [HVCD]

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Rectifiers (AREA)
  • Direct Current Feeding And Distribution (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Inverter Devices (AREA)

Abstract

本发明提出了一种柔性直流换流站内故障开关配置及清除方法，柔性直流换流站配置网侧开关(QF1)和阀侧分相开关(QF2)在换流站内，发生故障时，通过差动保护或低压过流来检测识别出故障相和非故障相，通过先切除非故障相阀侧分相开关(QF2)和网侧开关(QF1)，创造交流过零点条件，进而切除故障相，断开电源与故障点连接，实现清除故障。切除故障方法简单实用、可靠性高，实现快速有效的切除了故障点与电源的连接，有效的保护了换流站设备，避免了故障的进一步扩大。

Description

一种柔性直流换流站内故障开关配置及清除方法
技术领域
本发明属于电力系统柔性输电和柔性交流输电领域，具体涉及一种柔性直流换流站内故障开关配置及清除方法。
背景技术
柔性直流输电和新一代柔性交流输电采用电压源换流器，可以独立调节有功和无功，提高交流系统的输电能力。在可再生能源的发电并网、孤岛城市供电以及交流系统互联等应用领域，具有明显的竞争力。随着电力电子器件和控制技术的进步，柔性直流输电和柔性交流输电系统容量和电压等级越来越高。
柔性直流输电为了维持直流电压稳定，需要设置采用交流阀侧接地或直流侧接地钳位直流电压。直流侧接地方式有直流侧单极接地、高阻直流侧高阻接地等方式。随着柔性直流输电电压等级越来越高，采用真双极拓扑结构形式在减少单个换流单元子模块级联数目的达到大容量传输功率的目的。双极柔性直流输电系统结构通常采用直流侧接地，直流侧直接接地产生如下问题，当换流站阀侧和桥臂发生接地或短路故障时，与直流侧接地系统形成回路，交流电流中叠加直流偏执，导致流过网侧开关电流无过零点，从而导致交流开关无法跳开，有可能损坏机械开关和换流阀等设备。
专利CN201510999677.5提出利用旁路换流阀非故障相的下桥臂子模块来减小交流电流的直流偏执，其方法是针对单相接地故障，且先闭锁换流阀后再次触发换流阀子模块，在故障情况下，电流快速突变，换流阀闭锁后再次触发，要求故障判断准确，阀控系统执行迅速可靠，存在较大风险，是对开关器件的考验。目前柔性直流换流站一般采用网侧配置交流开关(QF1)而阀侧不配置开关(QF2)，即使阀侧配置开关(QF2)，阀侧开关更不进行故障选相，更不与网侧开关(QF1)配合通过时序配合来解决换流站内接地故障交流电流不过零带来的无法跳开交流开关并损害交流开关得问题。
以往交流保护一般故障选相是先选择故障相跳闸，非故障相不跳闸，更不能解决针对直流侧接地带来的换流站内故障引起的交流电流不过零开关无法分断问题。
为了实现可靠的解决直流侧接地带来的换流站内发生不对称故障时交流无法拉断问题，保证机械开关和换流站设备的安全，避免开关跳不开造成故障扩大化，本发明提出柔性直流换流站内配合网侧开关(QF1)和阀侧开关(QF2)，网侧开关与阀侧开关配合，检出出换流站内接地故障后，通过阀侧分相开关，先跳阀侧非故障相，再跳网侧开关，从而在保证交流开关安全的情况下快速有效的清除了换流站内故障。
发明内容
本发明的目的在于，提出适用于直流侧接地布置换流站内故障开关配置及清除方法。柔性直流换流站内除配置配合网侧开关(QF1)外，增设阀侧分相开关(QF2)，网侧开关与阀侧开关相互配合，保护系统识别出换流站内接地故障和故障相后，先跳阀侧非故障相，再跳网侧开关，从而在保证交流开关安全的情况下快速有效的清除了换流站内故障，实现换流站内故障真正清除，确保换流站设备安全运行及防止故障扩大影响。
为了达到上述目的，本发明的解决方案是：
一种柔性直流换流站内故障开关配置及清除方法，柔性直流换流站分别配置网侧开关(QF1)和阀侧分相开关(QF2)，检测出换流站内故障时，先跳阀侧非故障相开关，再跳网侧开关，实现换流站内故障清除。具体故障清除方法如下：
1)换流站内发生故障，保护系统识别出故障相和非故障相；
2)t1时刻发出非故障相阀侧开关(QF2)跳闸指令；
3)t2时刻发出网侧开关(QF1)跳闸指令；
4)t1与t2整定关系为t1≤t2。
5)网侧开关(QF1)跳开△t后发出阀侧开关故障相跳闸指令。
一种柔性直流换流站内故障开关配置及清除方法，进一步的，保护系统可采用差动保护检测得到故障相或阀侧低电压过流来判断故障位置和故障相。
一种柔性直流换流站内故障开关配置及清除方法，进一步地，t1取值范围为0到10s，t2取值范围为0到15s，△t取值范围为0到∞。
一种柔性直流换流站内故障开关配置及清除方法，配置的阀侧开关(QF2)是分相开关。
一种柔性直流换流站内故障开关配置及清除方法，换流站内故障区域主要指范围为同步电压Us和正极母线和负极母线之间区域故障。
附图说明
图1是本发明中开关位置示意图和故障换流站站内故障区域示意图。
图2是阀侧故障仅跳网侧开关故障电流波形图。
图3是阀侧故障通过网侧开关和阀侧开关配合跳闸故障电流波形图。
具体实施方式
以下将结合附图及具体实施例，对本发明的技术方案进行详细说明。
本发明针对直流侧接地系统换流站内故障进行研究，确认开关配置和清除方法。闭合图1中QS5接地开关实现换流阀接地。
一般柔性直流输电换流站，配置网侧开关(QF1)而不配置阀侧开关(QF2)。除非采用三绕组变压器的某些换流站配置阀侧开关(QF2)，变压器第三绕组为站用电供电，配置阀侧开关(QF2)的目的是为了实现换流阀检修时，变压器可以继续运行。
图1中：Us网侧同步电压，IS网侧电流，QF1网侧开关，QF2阀侧分相开关，IVT变压器阀侧套管电流，QF3旁路开关，UV阀侧电压，IVC阀侧电流，IDP直流母线电流，IDNE中性母线电流。
以极1换流阀C相F1或F2位置接地故障为例进行说明，换流阀侧交流连接区0.02s时刻F1故障后网侧电流和阀侧电流如图2所示，图2中IS_A、IS_B、IS_C分别为网侧三相电流，IVC_A、IVC_B、IVC_C分别为阀侧电流，由图2知，故障时网侧电流A相与B相不过零，如果仅仅配置网侧开关(QF1)而不配置阀侧开关(QF2)，在0.08s时刻发开关跳闸命令，由图2知，因为B相电流不过零，网侧开关需要开关跳闸指令发送越140ms后才能拉开，而此过程中因无过零点强制断开开关QF1，将造成开关触头等损害，同时故障不能有效清除。
针对换流站内阀侧故障，分析发现非故障相阀侧电流存在过零点，通过一系列计算分析，阀侧加装分相开关QF2，检测到换流站内故障后，先跳阀侧非故障相电流，因非故障相阀侧存在过零点可以跳开相应阀侧开关QF2，将实现阀侧非故障相与故障点隔离，然后此时网侧电流将过零，此时再跳网侧开关，即实现故障隔离，也不会造成故障开关设备损坏。
具体步骤如下：
1、柔性直流换流站除网侧开关(QF1)外，增设配置阀侧分相开关(QF2)
2、换流站内控制保护系统可以依靠IVT于IVC之间差动电流(IVT-IVC)大于设定值Idelt，Idelt取额定值1.0pu，认为故障位置在换流站内阀侧，其为故障相，否则为非故障相。
3、检测识别出故障位置和故障相后。换流阀控制保护系统延时t1时间发出阀侧开关(QF2)非故障相跳闸指令，t1设定在(0-10s)内。
4、换流站内控制保护系统延时t2时间发出网侧开关QF1，t2设定在(0-15s)内。
5、t1与t2整定关系为t1≤t2。
6、网侧开关跳开后，延时△t时间发出阀侧开关(QF2)的故障相跳闸指令，△t设定在(0-∞s)内。
7、经过上述步骤，三相QF1、QF2开关跳开，故障清除且不会损坏开关。
按照本发明提出的一种柔性直流换流站内故障开关配置及清除方法，阀侧接地故障后，故障清除波形如图3所示，0.02s发生故障，0.06s发出阀侧非故障相跳闸命令，延时1ms发出网侧开关跳闸指令，开关命令发出20ms内实现故障清除，不存在故障开关分断不开而导致开关损坏和故障无法清除问题。
本发明以换流阀侧交流连接区F1或F2单相接地故障为实施例进行介绍实施方案，但本发明不限于单相接地故障，其适用于换流站内其它接地故障和短路故障的清除方法，例如桥臂电抗器接地等故障。
以上实施例仅为说明本发明的技术思想，不能以此限定本发明的保护范围，凡是按照本发明提出的技术思想，在技术方案基础上所做的任何改动，均落入本发明保护范围之内。

Claims (5)

1.一种柔性直流换流站内故障开关配置及清除方法，其特征在于：在柔性直流换流站分别配置网侧开关(QF1)和阀侧分相开关(QF2)，换流站内故障时，先跳阀侧非故障相开关，再跳网侧开关，进行换流站内故障清除，所述故障清除的具体方法包括：
换流站内发生故障，保护系统识别出故障相和非故障相；
t1时刻发出非故障相阀侧开关(QF2)跳闸指令，t2时刻发出网侧开关(QF1)跳闸指令，t1与t2整定关系为t1≤t2；
网侧开关(QF1)跳开后，经历时间间隔△t发出故障相阀侧分相开关(QF2)跳闸指令。
2.如权利要求1所述的一种柔性直流换流站内故障开关配置及清除方法，其特征在于：采用差动保护检测得出故障相,或者根据阀侧低电压过流来判断出故障相。
3.如权利要求1所述一种柔性直流换流站内故障开关配置及清除方法，其特征在于：t1取值范围为0到10s，t2取值范围为0到15s，时间间隔△t取值范围为0到∞。
4.如权利要求1所述的一种柔性直流换流站内故障开关配置及清除方法，其特征在于：配置的阀侧开关(QF2)采用分相开关。
5.如权利要求1所述一种柔性直流换流站内故障开关配置及清除方法，其特征在于：换流站内故障指范围为变压器二次侧、极母线和中性线母线之间区域的故障。
CN201710406486.2A 2017-06-02 2017-06-02 一种柔性直流换流站内故障开关配置及清除方法 Active CN107093890B (zh)

Priority Applications (11)

Application Number Priority Date Filing Date Title
CN201710406486.2A CN107093890B (zh) 2017-06-02 2017-06-02 一种柔性直流换流站内故障开关配置及清除方法
BR112019024168-0A BR112019024168A2 (pt) 2017-06-02 2018-05-22 Configuração de interruptor em falha elétrica e método de remoção de falha elétrica na central de conversor dc flexível
DK18809522.8T DK3595116T3 (da) 2017-06-02 2018-05-22 Fejlkontaktskonfiguration og rydningsfremgangsmåde i fleksibel jævnstrømsomformerstation
MX2019013245A MX2019013245A (es) 2017-06-02 2018-05-22 Configuracion de interruptor de falla y metodo de supresion de fallas en una estacion convertidora de dc flexible.
RU2019136268A RU2718619C1 (ru) 2017-06-02 2018-05-22 Способ конфигурации выключателя при повреждениях и их устранения в гибко настраиваемой преобразовательной подстанции постоянного тока
KR1020197026158A KR102124287B1 (ko) 2017-06-02 2018-05-22 플렉시블 dc 송전용 컨버터 스테이션 내 고장에 대한 스위치 배치 및 고장 제거 방법
US16/500,189 US10923906B2 (en) 2017-06-02 2018-05-22 Fault switch configuration and clearing method in flexible DC converter station
JP2019551432A JP6784850B2 (ja) 2017-06-02 2018-05-22 フレキシブルｄｃ変換所における障害スイッチ構造および復旧方法
EP18809522.8A EP3595116B1 (en) 2017-06-02 2018-05-22 Fault switch configuration and clearing method in flexible dc converter station
PCT/CN2018/087791 WO2018219174A1 (zh) 2017-06-02 2018-05-22 一种柔性直流换流站内故障开关配置及清除方法
CA3060024A CA3060024C (en) 2017-06-02 2018-05-22 Fault switch configuration and clearing method in flexible dc converter station

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710406486.2A CN107093890B (zh) 2017-06-02 2017-06-02 一种柔性直流换流站内故障开关配置及清除方法

Publications (2)

Publication Number Publication Date
CN107093890A true CN107093890A (zh) 2017-08-25
CN107093890B CN107093890B (zh) 2019-03-08

Family

ID=59639021

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710406486.2A Active CN107093890B (zh) 2017-06-02 2017-06-02 一种柔性直流换流站内故障开关配置及清除方法

Country Status (11)

Country Link
US (1) US10923906B2 (zh)
EP (1) EP3595116B1 (zh)
JP (1) JP6784850B2 (zh)
KR (1) KR102124287B1 (zh)
CN (1) CN107093890B (zh)
BR (1) BR112019024168A2 (zh)
CA (1) CA3060024C (zh)
DK (1) DK3595116T3 (zh)
MX (1) MX2019013245A (zh)
RU (1) RU2718619C1 (zh)
WO (1) WO2018219174A1 (zh)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018219174A1 (zh) * 2017-06-02 2018-12-06 南京南瑞继保电气有限公司 一种柔性直流换流站内故障开关配置及清除方法
CN109672150A (zh) * 2017-10-13 2019-04-23 贵州电网有限责任公司电力调度控制中心 适用于双极系统换流阀侧交流区故障的清除方法及装置
CN110672972A (zh) * 2019-09-09 2020-01-10 华北电力大学 一种柔性直流配电网络故障定位和隔离方法
CN112054490A (zh) * 2020-08-11 2020-12-08 南方电网科学研究院有限责任公司 多端直流单极金属运行方式下第三站故障退出方法及装置
CN114362230A (zh) * 2021-12-09 2022-04-15 南方电网科学研究院有限责任公司 共用接地装置的多变压器并联柔直换流站及其投切方法

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111276942B (zh) * 2020-03-26 2022-05-10 特变电工西安柔性输配电有限公司 一种用于海上风电柔直送出系统的桥臂电流应力降低方法
CN113949042B (zh) * 2020-07-17 2024-07-30 中国南方电网有限责任公司超高压输电公司 一种特高压直流阀组和故障阀组隔离方法
CN111934285B (zh) * 2020-09-10 2024-07-23 桂林五环电器制造有限公司 一种干式空心电抗器匝间短路保护方法和装置
CN113765056B (zh) * 2020-12-12 2022-09-02 保定钰鑫电气科技有限公司 一种单相接地的处理方法
CN112701655A (zh) * 2020-12-23 2021-04-23 上海科梁信息工程股份有限公司 直流输电系统中重合闸和启动控制方法、设备及存储介质
CN112838610B (zh) * 2021-01-17 2023-12-15 昆明理工大学 一种基于二端口网络考虑中性点电流的mmc换流站接地故障分析方法
CN112886556B (zh) * 2021-03-04 2022-12-16 中国南方电网有限责任公司 柔性直流输电交流连接线区单相接地故障控制保护方法
CN113013860B (zh) * 2021-03-29 2024-02-06 西安西电电力系统有限公司 换流阀过电压抑制方法及装置
CN113988648A (zh) * 2021-10-29 2022-01-28 广东电网有限责任公司 一种风电柔直系统风险值的计算方法及装置
CN114552546B (zh) * 2022-03-04 2023-08-15 广东电网有限责任公司广州供电局 应用于柔性直流输电系统的跨站跳闸方法、系统、设备及介质
CN115133502B (zh) * 2022-06-22 2023-09-29 上海勘测设计研究院有限公司 一种储能电站交流母线故障切除方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090168473A1 (en) * 2006-01-18 2009-07-02 Abb Technology Ltd. Converter station
CN103606911A (zh) * 2013-10-12 2014-02-26 张家港智能电力研究院有限公司 一种切除柔性直流输电系统直流线路瞬时性短路接地故障的方法
CN103986176A (zh) * 2014-04-01 2014-08-13 南方电网科学研究院有限责任公司 一种将换流站带电接入多端柔性直流输电系统的方法
WO2016066196A1 (en) * 2014-10-30 2016-05-06 Abb Technology Ltd Method in, apparatus for, and interface arrangement between an alternating current power system and a direct current power system
CN105703336A (zh) * 2015-12-28 2016-06-22 国网辽宁省电力有限公司电力科学研究院 双极柔性直流输电系统站内单相接地故障控制保护方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4108614B2 (ja) * 2004-01-13 2008-06-25 三菱電機株式会社 位相制御開閉装置
RU2414720C2 (ru) * 2009-03-10 2011-03-20 Ооо "Нииэфа-Энерго" Устройство управления и защиты присоединений переменного тока системы тягового электроснабжения и система управления тяговой подстанцией с использованием устройств управления и защиты присоединений переменного тока
JP5378274B2 (ja) * 2010-03-15 2013-12-25 株式会社日立製作所 電力変換装置
CN102934311A (zh) * 2010-06-01 2013-02-13 Abb技术有限公司 Ac和dc系统间在变压器中性点包括滤波器的接口装置
WO2011150963A1 (en) * 2010-06-01 2011-12-08 Abb Technology Ag Interface arrangement between ac and dc systems using grounding switch
JP6018934B2 (ja) * 2013-01-25 2016-11-02 株式会社日立製作所 電力変換装置
WO2016056072A1 (ja) * 2014-10-08 2016-04-14 三菱電機株式会社 電力変換装置
CN105703481B (zh) * 2016-03-03 2018-03-30 南京南瑞继保电气有限公司 一种换流阀均压状态一致性统计方法
CN105790238B (zh) * 2016-04-27 2019-02-15 南方电网科学研究院有限责任公司 一种双极mmc-hvdc输电系统及阀侧单相接地故障的保护方法
CN107093890B (zh) * 2017-06-02 2019-03-08 南京南瑞继保电气有限公司 一种柔性直流换流站内故障开关配置及清除方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090168473A1 (en) * 2006-01-18 2009-07-02 Abb Technology Ltd. Converter station
CN103606911A (zh) * 2013-10-12 2014-02-26 张家港智能电力研究院有限公司 一种切除柔性直流输电系统直流线路瞬时性短路接地故障的方法
CN103986176A (zh) * 2014-04-01 2014-08-13 南方电网科学研究院有限责任公司 一种将换流站带电接入多端柔性直流输电系统的方法
WO2016066196A1 (en) * 2014-10-30 2016-05-06 Abb Technology Ltd Method in, apparatus for, and interface arrangement between an alternating current power system and a direct current power system
CN105703336A (zh) * 2015-12-28 2016-06-22 国网辽宁省电力有限公司电力科学研究院 双极柔性直流输电系统站内单相接地故障控制保护方法

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
仉雪娜 等: "基于MMC的多端直流输电系统直流侧故障控制保护策略", 《电力系统自动化》 *
王俊生 等: "并联型多端直流输电系统保护相关问题探讨", 《中国电机工程学报》 *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018219174A1 (zh) * 2017-06-02 2018-12-06 南京南瑞继保电气有限公司 一种柔性直流换流站内故障开关配置及清除方法
US10923906B2 (en) 2017-06-02 2021-02-16 Nr Electric Co., Ltd. Fault switch configuration and clearing method in flexible DC converter station
CN109672150A (zh) * 2017-10-13 2019-04-23 贵州电网有限责任公司电力调度控制中心 适用于双极系统换流阀侧交流区故障的清除方法及装置
CN110672972A (zh) * 2019-09-09 2020-01-10 华北电力大学 一种柔性直流配电网络故障定位和隔离方法
CN112054490A (zh) * 2020-08-11 2020-12-08 南方电网科学研究院有限责任公司 多端直流单极金属运行方式下第三站故障退出方法及装置
CN112054490B (zh) * 2020-08-11 2022-12-06 南方电网科学研究院有限责任公司 多端直流单极金属运行方式下第三站故障退出方法及装置
CN114362230A (zh) * 2021-12-09 2022-04-15 南方电网科学研究院有限责任公司 共用接地装置的多变压器并联柔直换流站及其投切方法
CN114362230B (zh) * 2021-12-09 2024-05-07 南方电网科学研究院有限责任公司 共用接地装置的多变压器并联柔直换流站及其投切方法

Also Published As

Publication number Publication date
CA3060024A1 (en) 2018-12-06
KR20190107173A (ko) 2019-09-18
WO2018219174A1 (zh) 2018-12-06
EP3595116A1 (en) 2020-01-15
EP3595116A4 (en) 2020-12-16
CA3060024C (en) 2020-08-25
JP2020520210A (ja) 2020-07-02
KR102124287B1 (ko) 2020-06-17
DK3595116T3 (da) 2023-01-09
US20200220349A1 (en) 2020-07-09
CN107093890B (zh) 2019-03-08
RU2718619C1 (ru) 2020-04-09
BR112019024168A2 (pt) 2020-06-02
MX2019013245A (es) 2020-01-27
EP3595116B1 (en) 2022-10-05
US10923906B2 (en) 2021-02-16
JP6784850B2 (ja) 2020-11-11

Similar Documents

Publication Publication Date Title
CN107093890A (zh) 一种柔性直流换流站内故障开关配置及清除方法
EP2856590B1 (en) Method of fault clearance
US7830679B2 (en) Transmission system
US8014178B2 (en) Converter station
CN104022494B (zh) 柔性直流输电换流站断路器的交直流配合保护方法及装置
EP3363092B1 (en) Method and arrangement for facilitating clearing of a pole fault and isolation of a faulted pole in a power transmission system
CN203119316U (zh) 一种电力电子变电站
EP1974431B1 (en) A converter station
Lazzari et al. Selectivity and security of DC microgrid under line-to-ground fault
CN114498577A (zh) 一种贯通柔性牵引变电所结构及其保护配置方法
CN106797124A (zh) Ac故障处理布置
CN103545787A (zh) 统一电能质量控制器的保护系统及其保护控制方法
CN203883464U (zh) 可控型小电阻消弧装置
CN203674688U (zh) 统一电能质量控制器的保护系统
WO2017167744A1 (en) High voltage direct current switchgear
CN108616110A (zh) 一种交直流互联系统的保护装置
CN202840464U (zh) 高压无功就地补偿装置
CN206135392U (zh) 一种带断零和缺相保护功能的断路器
CN109004531A (zh) 一种中性点接地电阻成套装置
Page et al. An alternative protection strategy for multi-terminal HVDC
CN106356811A (zh) 带断零和缺相保护功能的断路器
Dadgostar et al. Fast and Discriminative DC Grid Protection Using Bus-bar Capacitor Current
CN206962433U (zh) 扩大单元接线型系统的保护电路
Mohamed Haleem Fault detection, discrimination, and recovery in multi-terminal HVDC transmission systems
CN109672150A (zh) 适用于双极系统换流阀侧交流区故障的清除方法及装置

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant