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首页> 外文期刊>Arabian Journal for Science and Engineering >Adaptive Distance Relaying for Grid-Connected Line with Consideration of Single-Phase Auto-Reclosing
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Adaptive Distance Relaying for Grid-Connected Line with Consideration of Single-Phase Auto-Reclosing

机译：考虑单相自动重合闸的并网自适应距离中继

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摘要

In this paper, the performance of distance relay during single-phase reclosing (SPAR) period is considered. Available distance relaying schemes are affected during SPAR period as the pre-fault signals include both negative- and zero-sequence components. Fault resistance, voltage ratio, load angle, shunt capacitive effect, and other system conditions along with SPAR further make distance estimation erroneous. The proposed adaptive scheme is based on the derivation of the impedance at the relay location using symmetrical component theory. The proposed scheme has been employed to measure the correct value of the fault impedance during SPAR period with variation in different system conditions. This approach also works for without SPAR condition. The performance of the proposed technique is tested using the transient data obtained from the single-circuit line simulated using PSCAD/EMTDC software. Performance of the proposed algorithm is verified using a hardware-in-loop test bed having real-time digital simulator and dSPACE.
机译：本文考虑了距离继电器在单相重合闸（SPAR）期间的性能。由于故障前信号包括负序和零序分量，因此在SPAR期间会影响可用的距离中继方案。故障电阻，电压比，负载角，并联电容效应和其他系统条件以及SPAR进一步使距离估计错误。所提出的自适应方案基于使用对称分量理论的继电器位置处的阻抗推导。所提出的方案已被用于测量在不同系统条件下变化的SPAR期间故障阻抗的正确值。这种方法也适用于没有SPAR条件的情况。使用从使用PSCAD / EMTDC软件模拟的单条电路线路获得的瞬态数据测试了所提出技术的性能。使用具有实时数字仿真器和dSPACE的硬件在环测试台，可以验证所提出算法的性能。

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