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An Improved Scheme of Active Power Differential Protection for Transmission Line

机译:传输线有源电力差动保护改进方案

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In this paper, an improved scheme of active power differential protection for transmission line is proposed. The criteria for active power differential protection are optimally designed and described in detail. Restraint characteristic criteria and additional auxiliary criteria are used to solve the "voltage dead zone" issues of active power differential protection. Simulation results show that the proposed protection scheme can accurately identify the fault area without dead zone when metallic ground fault occurs near the protection units. In addition, active power differential protection has the advantage of low data synchronization requirements, and it is verified in this study.
机译:本文提出了一种改进的输电线路有源电力差动保护方案。 有效功率差动保护的标准是最佳的设计和描述的详细。 克制特征标准和额外的辅助标准用于解决有源电力差动保护的“电压死区”问题。 仿真结果表明,当在保护单元附近发生金属接地故障时,所提出的保护方案可以准确地识别没有死区的故障区域。 此外,有源功率差动保护具有低数据同步要求的优点,并在本研究中验证。

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