本文研究了输电线路接地故障时的故障选相判据。
This paper studied the transmission lines when earthing fault fault phase selection criterion.
构造了新型的用于高压输电线路保护的故障选相元件。
A new faulty phase selector for high voltage power transmission system is presented.
提出一种新的基于自谐振神经网络结构的自适应故障选相元件。
This paper presents a new adaptive phase selector with an adaptive resonance theory (ART) based neural network.
最后，结合新技术在电力系统中的应用，探讨了故障选相元件进一步的研究方向和发展前景。
In the end, combined with new technology applications in power system, the research orientation and further development of fault phase selector are discussed.
随着电力系统网络规模的不断扩大和电压等级的不断提高，对故障选相装置的要求也不断提高。
Along with the continuous development of power system network and the continuous enhancement of voltage grade, the request is enhanced correspondingly to the fault phase selector.
文中还提出利用同一故障检测量实现故障选相，经过大量的动模实验表明所述方法具有一系列优点。
Also in this paper presented a new way of phase-select for faults through fault checking measurements. Dynamic model test's results show that the proposed method has a series of advantages.
理论分析和仿真计算表明，使用电压量的选相元件能够正确地判别各种故障类型，满足高压线路保护的需要。
Theory analysis and simulation results show that the new phase selector can determine fault types properly and be used in transmission line protective relay.
在详细分析相电流差突变量选相基本原理的基础上，对传统相电流差突变量选相元件三相短路故障判据进行了改进。
Based on the detailed analysis of basic principle, the traditional three-phase short-circuit criterion of phase selection element based on sudden-change of phase current differential is improved.
文中所探讨的相电流突变量选相元件，是利用单相接地故障时，两健全相相间电流突变量为零这一特征来得到的。
The fault phase selector discussed is based on the result that the fault component of sound phases is zero when a single-phase-to-ground fault occurs.
研究表明相电流差突变量、稳态电流序分量等选相元件在发生某些跨线及转换性故障时会误选相。
The fault phase selectors, including the phase current difference suddenly-change and the sequence current, may misoperate in some cross country faults and conversion faults.
相电流差突变量选相元件在单回线故障中具有良好的选相性能，但在同杆双回线跨线故障中可能误选相。
Although fault component current phase selector has excellent performance for single transmission lines, it may select unwanted phase for cross-country faults in double-circuit lines on a same tower.
相电流差突变量选相元件在单回线故障中具有良好的选相性能，但在同杆双回线跨线故障中可能误选相。
Although fault component current phase selector has excellent performance for single transmission lines, it may select unwanted phase for cross-country faults in double-circuit lines on a same tower.
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