WO2015042774A1 - 串补保护装置及其方法 - Google Patents
串补保护装置及其方法 Download PDFInfo
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- WO2015042774A1 WO2015042774A1 PCT/CN2013/084088 CN2013084088W WO2015042774A1 WO 2015042774 A1 WO2015042774 A1 WO 2015042774A1 CN 2013084088 W CN2013084088 W CN 2013084088W WO 2015042774 A1 WO2015042774 A1 WO 2015042774A1
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- series compensation
- protection device
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- current
- compensation protection
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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
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- 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
- H02H3/02—Details
- H02H3/04—Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
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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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/08—Limitation or suppression of earth fault currents, e.g. Petersen coil
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; 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
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
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- 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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
Definitions
- the invention relates to the field of relay protection, in particular to a novel series compensation protection device and a method thereof. Background technique
- Series compensation of transmission lines is an important means to improve the transmission capacity of the power grid. Since there is no special tester for series-compensation control and protection devices including CT loops that is convenient for field tests in foreign countries, effective field test methods have not been formed in China for series-compensation control devices. In the field test of the major series compensation project, there is still a series of detailed and complete test methods and means for the series protection device control protection function test, fixed value verification, and action behavior verification.
- the equipment used for the protection of the factory series compensation device is a general-purpose signal generator, oscilloscope, voltmeter, and no special test instrument is used. Since the test signal from the signal source is a voltage signal and the signal duration is not effectively controlled, even an experienced tester cannot accurately determine whether the protection action is correct and the protection value is accurate.
- the on-site test plan provided, no on-site test items for detailed inspection of the protection function and protection settings of the series compensation device were found. Neither the protection fixed value test nor the protection logic function test is performed, and the experimental project can only confirm the loop integrity and system integrity.
- the object of the present invention is to provide a series-compensation protection device and a method thereof, which provide effective and reasonable protection for the on-site inspection quality of the relay protection device, and can more easily protect the multi-phase test and solve the interphase problem at the same time.
- the present invention provides a series compensation protection device
- the series compensation protection device includes: a main control module, which processes and transmits a split current command and a control circuit switch according to a feedback parameter; a plurality of current analog output The module is configured to respectively output analog currents to a plurality of test devices.
- the main control module further comprises: a processing module, a signal setting and input component, a display component, and an analog disconnection and warning component.
- the method further includes: various sound and light alarm components or voice alarm components can be used.
- the current analog output module further includes: a control signal input end, a current analog quantity feedback signal output end, and a current output end.
- the main control module of the series compensation protection device further includes: a processing module, a signal setting and input component, a display component, and an analog disconnection and warning component; and the processing module includes: a control signal output end, a control signal input end, and a current Analog feedback signal input terminal and serial compensation protection device signal input terminal; control signal input terminal, current analog quantity feedback signal output terminal and current output terminal.
- the signal setting and input component is connected to the control signal input end of the processing module, and the display component and the analog disconnection and the warning component are both connected to the control signal output end of the processing module, and the control signal The output end is respectively connected to the control signal input end of the plurality of current analog quantity output modules, and the current analog quantity feedback signal input end is respectively connected with the current analog quantity feedback signal output end of the plurality of current analog quantity output modules.
- the main control module of the series compensation protection device further includes: the main control module is respectively connected to the plurality of current analog quantity output module fibers.
- the invention also provides a method for string compensation protection verification, the method comprising: receiving parameters, analyzing and processing the parameters; sending an instruction according to the analysis processing result, outputting an analog current; sending an instruction outputting an analog current The corresponding analog circuit switch is also controlled according to the analysis processing result.
- each part can coordinate the work interworking information, complete the closed-loop test of the test process with the series-compensated CT loop, and the main control device will require the protection action.
- Analog output optical device is transmitted to the analog output device of the series compensation platform, and the analog output device is based on the command.
- the analog quantity is output, and the main control device receives the protection action and simulates the circuit breaker damper behavior at the same time, thereby testing the series compensation protection control logic and the whole set of action behaviors, realizing the long-distance, high-precision monitoring of the working state of the series-compensation protection device, and the structure is simple It is reasonable and at the same time protects the multiphase test and solves its interphase problems.
- Figure 1 is a schematic diagram of series compensation protection
- Figure 2 is a structural diagram of a new series compensation device
- Figure 3 is a flow chart of series compensation protection.
- the present invention provides a new type of series-compensated protection verification test device based on the characteristics of the string compensation protection device.
- the test device for the new series compensation check is divided into four parts.
- the analog output devices (multiple units) located on each phase of the series compensation platform test and the main control devices located on the ground are located on the 500KV series compensation platform and the ground respectively.
- Each part can coordinate the work interworking information and complete the delay process with the series complement CT loop.
- the main control device is used to transmit the analog quantity required for the protection action to the plurality of analog output devices of the series compensation platform in the form of optical fibers, and when the plurality of analog output devices receive the command transmitted by the main control device
- the analog output is output; the main control device simulates the switching brake behavior of the circuit breaker while receiving the protection action, and protects the running experiment of the test device; because multiple analog output devices simultaneously perform analog output on multiple devices, and the main control module receives its parameters.
- the novel series compensation protection device includes a main control module and a plurality of analog output modules, and each analog output module is provided with a control signal input end, an analog feedback signal output end and a current output end.
- the main control module includes a processing module, a signal setting and input component, a display component, and an analog circuit breaker and a warning component.
- the signal setting and input component are connected to the signal input end of the processing module, and the display component and the analog circuit breaker and the warning component are connected to the processing.
- the signal input end of the module has a control output end, a current analog quantity feedback signal input end and a series compensation protection device signal input end, and the control signal output end is connected with the control signal input end of the plurality of current analog quantity output modules, the current simulation The quantity feedback signal input end is connected to the current analog quantity feedback signal output end of the plurality of current analog quantity output modules.
- the analog open circuit and warning component can adopt various sound and light alarm components or voice alarm components.
- multiple current analog output modules simultaneously output 7 current analog quantities. Because of the use in strong point field environment, the current analog output module requires excellent anti-interference ability, the maximum output current is 15A, and the current is less than The accuracy requirement is still met at 50 mA, and the series compensation tester can output 1 channel (T220V adjustable DC power supply.
- the ground main control device can accept the 8-way open and 4-way open-circuit protection of the ground series compensation device.
- the test control is located Ground, analog circuit breaker output contact capacity requirement 1A, double coil includes double and double.
- the analog output module outputs to the current transformer (CT) on the series compensation platform, and can receive the series compensation device installed on the ground. The action command is issued to realize the closed-loop test of the series compensation device with the entire CT loop.
- CT current transformer
- the main control device receives the parameters, analyzes and processes the parameters, and analyzes the operation of the test device according to the parameter values. Whether each phase test device is consistent with the design requirements, if consistent, the protection continues, if not, Then processing and calculating a new instruction, sending the analog output module, sending the command, and controlling the tripping behavior of the analog circuit breaker according to the result of the processing calculation, and the analog output module receives the command sent by the main control device, according to the instruction
- the analog current is output to the current transformer (CT) on the platform.
- CT current transformer
- the main control module analyzes and calculates the influence between each test device and the operation of a single device through the parameters of the operation conditions of each test device received, and analyzes whether the test device is consistent with the design requirements. Because multiple test devices are protected at the same time and their feedback parameters are received, a reasonable output command suitable for multiple test devices is given while processing the calculation, and the analog output module receives the action command issued by the main control module. After that, the analog current is output to the current transformer (CT) on the series compensation platform, and the output command can also receive the action command issued by the series compensation device, thereby reducing the cumbersome process of the commutation test and solving the problem. The interphase problem when multiple test devices are simultaneously tested.
- CT current transformer
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
一种串补保护装置及其方法,该装置包括:一主控模块,根据回馈参数处理并发送分向电流指令及控制电路开关;多个电流模拟量输出模块,用于向多个试验装置分别对应输出模拟量电流;主控模块包括:处理模块、信号设置及输入部件、显示部件和模拟断路及警示部件。该装置实现了远距离、高精度地监测串补保护装置的工作状态,结构简单合理,且同时对多相试验进行保护并解决其相间问题。
Description
串补保护装置及其方法
技术领域
本发明是有关于一种继电保护领域, 尤其是指一种新型串补保护装置及其方法。 背景技术
输电线串联补偿是提高电网输电能力的重要手段。 由于目前国外尚未有方便现场 试验的包含 CT回路的串补控制保护装置专用测试仪, 国内尚未针对串补控制保护装置 形成有效的现场试验手段。 在重大串补项目现场试验中, 还缺乏针对串补装置控制保护 功能测试、 定值校验、 动作行为验证等一系列详细完整的试验方法及手段。
在重大串补项目现场试验中, 还缺乏针对串补装置控制保护功能测试、 定值校验、 动作行为验证等一系列详细完整的试验方法及手段。 目前现场试验还只能确认回路完整 性和系统完整性, 无法对串补装置保护定值正确性进行检查, 也无法检查保护控制逻辑 和整组动作行为是否与设计要求一致。 参照我国的继电保护设备现场试验标准, 串补保 护将被视为未经检验设备。 这种状态, 串补装置的运行安全稳定性必然受到影响。 根据 在出厂串补装置保护检验试验室及现场调试看到的情况,其出厂串补装置保护检验使用 的设备为通用的信号发生器、 示波器、 电压表, 未见使用专用试验仪器。 由于信号源发 出的试验信号是电压信号, 而且对信号持续时间未进行有效控制, 因此即使是有经验的 试验人员也无法准确判断保护动作行为是否正确、 保护定值是否准确。 在提供的现场试 验计划中, 也未见针对串补装置保护功能、 保护定值进行详细检查的现场试验项目。 既 不做保护定值检验, 也不做保护逻辑功能检验, 其实验项目只能确认回路完整性和系统 完整性。 利用这种简单的实验手段, 无法对串补装置保护定值正确性进行检查, 也无法 检查保护控制逻辑和整组动作行为是否与设计要求一致。这样的调试计划不满足我国对 继电保护装置现场检验质量的要求。
目前, 申请号为 201120374386. 4公开了一种串补保护装置定值校验仪, 可针对串 补装置控制保护功能测试、 定值校验、 动作行为验证等一系列详细完整的试验方法及手 段, 但其在实际应用中仍存在许多不足, 如当同时进行多台设备试验时, 其只能针对每 一相进行完整试验, 无法解决相间的问题, 且换相试验较为繁琐。
发明内容
针对上述问题, 本发明目的提出了一种串补保护装置及其方法, 为继电保护装置现 场检验质量提供有效合理的保护, 能更为简便的同时对多相试验进行保护并解决其相间 问题。
为了达到上述实施目的, 本发明提供一种串补保护装置, 所述串补保护装置包括: 一主控模块, 根据回馈参数处理并发送分向电流指令及控制电路开关; 多个电流模拟量 输出模块, 用于向多个试验装置分别对应输出模拟量电流。
根据上述串补保护装置的主控模块更进一步包括:处理模块、信号设置及输入部件、 显示部件和模拟断路及警示部件。
根据上述串补保护装置的主控模块中模拟断路及警示部件更进一步包括: 可采用各 种声光报警部件或语音报警部件。
根据上述串补保护装置的电流模拟量输出模块更进一步包括: 控制信号输入端、 电 流模拟量反馈信号输出端和电流输出端。
根据上述串补保护装置的主控模块更进一步包括:处理模块、信号设置及输入部件、 显示部件和模拟断路及警示部件及; 所述处理模块包括: 控制信号输出端、 控制信号输 入端、 电流模拟量反馈信号输入端和串补保护装置信号输入端; 控制信号输入端、 电流 模拟量反馈信号输出端和电流输出端。
根据上述串补保护装置的主控模块更进一步包括:信号设置及输入部件与处理模块 的控制信号输入端相连, 显示部件和模拟断路及警示部件都连接到处理模块的控制信号 输出端, 控制信号输出端分别与多个电流模拟量输出模块的控制信号输入端相连, 电流 模拟量反馈信号输入端分别与多个电流模拟量输出模块的电流模拟量反馈信号输出端 相连。
根据上述串补保护装置的主控模块更进一步包括:所述主控模块分别与多个电流模 拟量输出模块光纤连接。 本发明还提供一种串补保护校验的方法, 所述方法包括: 接收 参数, 对所述参数进行分析处理; 根据分析处理结果, 发送指令, 输出模拟量电流; 发 送指令输出模拟量电流时, 还根据分析处理结果控制相应模拟电路开关。
本发明的有益技术效果在于: 通过本发明提供的新型串补保护装置, 各部分能够协 调工作互通信息, 完成带串补 CT回路的试验过程的闭环测试, 主控装置将保护的动作 所要求的模拟量光纤形式传输到串补平台的模拟量输出装置,模拟量输出装置根据指令
输出模拟量, 主控装置接收保护动作同时模拟断路器调和闸行为, 从而测试串补保护控 制逻辑和整组动作行为, 实现了远距离, 高精度地监测串补保护装置的工作状态, 结构 简单合理, 且同时对多相试验进行保护并解决其相间问题。 附图说明
为了更清楚地说明本发明实施例, 下面将对实施例中所需要使用的附图作简单地介 绍, 显而易见地, 下面描述中的附图仅仅是本发明的一些实施例, 对于本领域普通技术 人员来讲, 在不付出创造性劳动的前提下, 还可以根据这些附图获得其他的附图。
图 1为串补保护示意图;
图 2为新型串补保护装置结构图;
图 3为串补保护的流程图。
具体实施方式
本发明的目的及其结构功能上的优点, 将依据以下附图所示的结构, 配合具体实施 例予以说明, 俾使审查委员能对本发明有更深入且具体的了解。
首先, 本发明根据串补保护装置定值校验仪特性, 提供一种新型串补保护校验的试 验装置。 请参阅图 1所示, 新型串补保护校验的试验装置共分为四部分。 位于每相串补 平台测试的模拟量输出装置(多台)和位于地面的主控装置分别位于 500KV串补平台和 地面, 各部分能够协调工作互通信息, 完成带串补 CT回路的时延过程的闭环测试, 主 控装置用于将保护的动作所要求的模拟量以光纤形式传输到串补平台的多台模拟量输 出装置, 当多台模拟量输出装置接收到主控装置传输过来的指令输出模拟量; 主控装置 接收保护动作的同时模拟断路器调和闸行为, 保护试验装置的运行实验; 因为多台模拟 量输出装置同时对多台设备进行模拟量输出, 同时主控模块接收其参数分析处理器整体 运行情况及相互间影响情况,所以能够及时检查出所保护的控制逻辑与整组动作行为是 否与设计要求一致, 然后发出调节各台试验装置动作指令给模拟输出装置, 各模拟输出 装置一对一连接试验装置 (如图 2所示) , 当接收到主控模块发出的动作指令后及时向 对应的试验装置发出模拟量输出电流; 从而测试串补保护控制逻辑和整组动作行为。
请参阅图 2所示, 新型串补保护装置包括主控模块和多台模拟量输出模块, 每台模 拟量输出模块上都设有控制信号输入端, 模拟量反馈信号输出端和电流输出端, 主控模 块包括处理模块、 信号设置及输入部件、 显示部件和模拟断路及警示部件, 信号设置及 输入部件与处理模块的信号输入端相连, 显示部件和模拟断路及警示部件都连接到处理
模块的信号输入端, 处理模块具有控制输出端、 电流模拟量反馈信号输入端和串补保护 装置信号输入端, 控制信号输出端与多台电流模拟量输出模块的控制信号输入端相连, 电流模拟量反馈信号输入端与多台电流模拟量输出模块的电流模拟量反馈信号输出端 相连。
所述的模拟断路及警示部件可采用各种声光报警部件或语音报警部件。
具体实施过程中, 多台电流模拟量输出模块同时输出 7路电流模拟量, 由于在强点 场环境下使用, 电流模拟量输出模块要求具有优良的抗干扰能力, 最大输出电流 15A, 在电流小于 50mA时仍满足精度要求, 串补测试仪可输出 1路 (T220V可调的直流电源。 地面的主控装置可接受地面的串补保护装置的 8路开入、 4路开出。测试控制位于地面, 模拟断路器输出接点容量要求 1A, 双线圈包括双合、双分。模拟量输出模块输出给串补 平台上的电流互感器(CT), 同时可以接收安装在地面的串补保护装置发出的动作命令, 实现带整个 CT回路的串补保护装置闭环测试。
请参阅图 3所示, 主控装置接收参数, 对所述参数进行分析处理, 根据参数值分析 试验装置运行情况, 每相试验装置是否与设计要求一致, 如一致, 则继续保护, 如否, 则处理计算新的指令, 发送与模拟量输出模块, 发送指令的同时, 还包括根据处理计算 的结果控制模拟断路器跳合闸行为, 模拟量输出模块接收主控装置发送过来的指令, 根 据指令输出模拟量电流给平台上的电流互感器 (CT) 。
具体实施过程中, 主控模块通过接收到的每台试验装置运行情况的参数, 分析计算 多台试验装置间互相间的影响及其单一设备运行情况,整体部分分析该试验装置是否与 设计要求一致, 因同时对多台试验装置进行保护且接收其反馈参数, 所以在处理计算的 同时给出适用于多台试验装置的合理输出指令, 而模拟量输出模块在接收到主控模块发 出的动作命令后, 输出模拟量电流给串补平台上的电流互感器(CT) , 输出的同时还可 以接收串补保护装置发出的动作命令, 以此, 不但减少了换相试验的繁琐过程, 而且解 决了多台试验装置同时进行实验时的相间问题。
以上所述的具体实施方式, 对本发明的目的、 技术方案和有益效果进行了进一步详 细说明, 所应理解的是, 以上所述仅为本发明的具体实施方式而已, 并不用于限定本发 明的保护范围, 凡在本发明的权利要求之内, 所做的任何修改、 等同替换、 改进等, 均 应包含在本发明的权利要求书保护范围之内。
Claims
1、 一种串补保护装置, 其特征在于, 所述串补保护装置包括:
一主控模块, 根据回馈参数处理并发送分向电流指令及控制电路开关;
多个电流模拟量输出模块, 用于向多个试验装置分别对应输出模拟量电流。
2、 根据权利要求 1所述的串补保护装置, 其特征在于, 所述主控模块包括: 处理模块、 信号设置及输入部件、 显示部件和模拟断路及警示部件。
3、 根据权利要求 2所述的串补保护装置, 其特征在于, 所述模拟断路及警示部件 可采用各种声光报警部件或语音报警部件。
4、 根据权利要求 1所述的串补保护装置, 其特征在于, 所述电流模拟量输出模块 包括:
控制信号输入端、 电流模拟量反馈信号输出端和电流输出端。
5、 根据权利要求 2所述的串补保护装置, 其特征在于, 所述串补保护装置包括: 处理模块、 信号设置及输入部件、 显示部件和模拟断路及警示部件及;
所述处理模块包括: 控制信号输出端、 控制信号输入端、 电流模拟量反馈信号输入 端和串补保护装置信号输入端;
控制信号输入端、 电流模拟量反馈信号输出端和电流输出端。
6、 根据权利要求 5所述的串补保护装置, 其特征在于, 所述串补保护装置包括: 信号设置及输入部件与处理模块的控制信号输入端相连, 显示部件和模拟断路及警 示部件都连接到处理模块的控制信号输出端,控制信号输出端分别与多个电流模拟量输 出模块的控制信号输入端相连, 电流模拟量反馈信号输入端分别与多个电流模拟量输出 模块的电流模拟量反馈信号输出端相连。
7、 根据权利要求 1所述的串补保护装置, 其特征在于, 所述串补保护装置还包括 所述主控模块分别与多个电流模拟量输出模块光纤连接。
8、 一种串补保护校验的方法, 其特征在于, 所述方法包括:
接收参数, 对所述参数进行分析处理;
根据分析处理结果, 发送指令, 输出模拟量电流;
发送指令输出模拟量电流时, 还根据分析处理结果控制相应模拟电路开关。
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| CN105866572A (zh) * | 2016-03-28 | 2016-08-17 | 华北电力科学研究院有限责任公司 | 一种串补保护动作自动发生系统及其工作方法 |
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| CN202230161U (zh) * | 2011-09-29 | 2012-05-23 | 华北电网有限公司大同超高压供电公司 | 串补保护装置的定值校验仪 |
| CN102608451A (zh) * | 2012-02-28 | 2012-07-25 | 中国南方电网有限责任公司超高压输电公司柳州局 | 一种测试串补控制保护装置的测试仪及检验测试方法 |
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| CN201935963U (zh) * | 2010-01-26 | 2011-08-17 | 中国南方电网有限责任公司电网技术研究中心 | 基于仿真系统的固定串补控制保护试验系统 |
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