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| 摘要: |
| 为从整体或区域电网的角度提升继电保护系统的性能、构建实际的广域保护系统,介绍了一种基于全球定位系统(GPS)的广域保护终端装置。该保护终端装置采用模块化结构,每个终端都配置了GPS信号模块和远程通信模块,可通过专用的通信网络共享电网广域信息。阐述了由该终端装置构成的保护系统利用电网广域信息进行保护策略的制定,实现电网中不同地点保护之间动作的协调配合,实现快速的和最小范围的故障隔离,加速后备保护的动作,改善后备保护的性能,并能实现自适应保护。最后,从应用的角度讨论了该装置在实际运行中需要注意的GPS信号可靠性与通信可靠性等关键问题。 |
| 关键词: 广域保护,GPS,终端装置,动作协调,后备保护 |
| DOI： |
| 分类号:TM732 |
| 基金项目: |
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| Research on wide-area protection terminal device based on GPS |
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YANG Shi-rong WANG Shao-rong CHENG Shi-jie
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| Abstract: |
| To improve the performance of the relay protection and build actual wide-area protection system from the viewpoint of whole or district power network,a wide-area protection terminal device based on GPS(Global Positioning System) is introduced.It adopts modularized structure,each terminal equips with GPS signal module and telecommunication module,and shares the wide-area information of power network via special communication network.The protection system composed of terminal devices uses wide-area information to establish the protective strategy to realize the coordination and cooperation of protections at different places in power network and the fast and least area fault isolation.The action of backup protection is speeded up,its performance improved and the adaptive protection realized.The reliability of GPS signal and communication,to which the attention should be paid in application,are discussed. |
| Key words: wide-area protection,GPS,terminal device,action coordination,backup protection |
