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电网技术  2006 

基于电流差动原理的广域继电保护系统

, PP. 91-95

Keywords: 广域继电保护系统,电流差动保护,通信服务模型,映射,智能电子装置

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Abstract:

介绍了基于电流差动原理的广域继电保护系统,描述了该系统的工作方式,讨论了划分广域保护范围的原则和实现广域差动保护算法所必需的保护智能电子装置(IntelligentElectronicDevice,IED)搜索方法。以双母线结构的电网为例说明了保护IED关联域的搜索步骤。为配合电流采样值在广域保护系统中快速可靠地传输,介绍了基于IEC61850的电流采样值传输模型和该模型映射到以太网通信栈的一般原理。

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