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首页> 外文期刊>International journal of electrical power and energy systems >Adaptive single-phase auto-reclosing method using power line carrier signals
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Adaptive single-phase auto-reclosing method using power line carrier signals

机译：利用电力线载波信号的自适应单相自动重合闸方法

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摘要

This paper proposes a new method for adaptive single-phase auto-reclosing (ASPAR) that improves the rate of successful reclosing actions after the occurrence of a transient single-phase fault and prevents unsuccessful re closing. After the occurrence of a fault, the only faulty phase is disconnected by the protection system (e.g., distance relays and circuit breakers). The proposed method deploys power line carrier (PLC) signals for determination of the secondary arc extinction time and releasing the reclosing signals to the circuit breakers. Despite the growing use of new communication systems (e.g., fibre-optic links), PLC systems are still widely used, and may not be considered for replacement in near future. Therefore, the proposed method can be utilized as an auxiliary application of PLC systems to enhance the resiliency of power grids. The simulation studies are carried out using EMTP-RV and MATLAB, and the advantages and disadvantages of the proposed method are discussed and compared with the existing ASPAR methods. According to the simulation results, the efficiency of the proposed ASPAR method is negligibly influenced by the following factors: fault location, faulty phase, system loading, transmission line transposition, shunt reactor, PLC carrier frequency, PLC operating mode, and the noises.
机译：本文提出了一种自适应单相自动重合闸（ASPAR）的新方法，该方法可提高发生瞬时单相故障后的重合闸成功率，并防止重合闸失败。发生故障后，保护系统（例如，距离继电器和断路器）断开唯一的故障相。所提出的方法部署电力线载波（PLC）信号，以确定二次灭弧时间，并将重合闸信号释放给断路器。尽管越来越多地使用新的通信系统（例如，光纤链路），PLC系统仍被广泛使用，并且可能在不久的将来不被考虑替代。因此，该方法可作为PLC系统的辅助应用，以增强电网的弹性。使用EMTP-RV和MATLAB进行了仿真研究，讨论了该方法的优缺点，并与现有的ASPAR方法进行了比较。根据仿真结果，所提出的ASPAR方法的效率受以下因素的影响可忽略不计：故障位置，故障相位，系统负载，传输线换位，并联电抗器，PLC载波频率，PLC工作模式和噪声。

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