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电网技术  2009 

基于PMU/SCADA的变电站自动化广域安全闭锁

, PP. 92-97

Keywords: 广域保护层,闭锁,监控与数据采集(SCADA),相量测量单元(PMU),约束指标

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Abstract:

分析了广域安全环境下电力系统稳定运行对变电站自动化闭锁逻辑的应用需求,设计了包含广域保护层、变电站层、间隔层和底层的变电站闭锁体系结构。基于相量测量单元和电力SCADA系统的数据信息,在广域保护层构造了4种安全闭锁约束指标,并将约束指标作为调度中心发送操作指令和电网自我调节的闭锁约束条件,完成了广域保护层在线闭锁逻辑的设计。最后介绍了广域保护层在线闭锁功能的实现以及变电站层闭锁功能的配置方法。

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