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中文摘要：
遵循IEC61850标准对简易保护的信息和服务进行分类，在过程层网络和站控层网络上实现了简易母线保护。为提高采集系统的可靠性，在过程层中采取合并单元双重配置和点对点的组网模式；为提高站控层网络的可靠性，采用双星形网络架构，并对其通信冗余机制进行了设计。在实时数字仿真器（RTDS）组成的闭环测试平台上，模拟了保护区内和区外故障，以及通信网络故障等，详细论证了简易母线保护的可靠性。
英文摘要：
By classifying the protection information and service, simple bus protection is realized in the process level network and station level network based on IEC 61850. To improve the reliability of the acquisition system, double configuration of the merging unit and the point-to-point networking mode for the process level are used. To improve the reliability of the station level network, the communication redundancy with binary star bus architecture is designed. Internal and external faults in the protected areas, as well as communication network faults are simulated on the closed-loop real time digital simulator （RTDS） test platform, and the reliability of simple bus protection is demonstrated in detail. This work is supported by National Natural Science Foundation of China （No. 51167001）.
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