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基于相关分析的故障序分量选相元件 预览 被引量:52

A SUPERIMPOSED PHASE SELECTOR BASED ON SYMMETRICAL COMPONENTS AND CORRELATION ANALYSIS
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摘要 提出了一种基于相关分析的故障序分量选相元件.该元件采用多参量比较的思想,在滤波和滤序环节设计得当时,较基于全周Fourier滤波的故障序分量选相方案速度更快.与电流突变量差选相元件相比,提高了在高阻接地时选相的灵敏度和两相接地短路的可靠性.最后,通过ATP仿真验证了本选相方案的有效性,并展望了相关分析理论在继电保护中的应用前景. A novel phase selector based on superimpose sequential components and correlation analysis is put forward in this paper. Multi-Base sequential systems are introduced to this phase selector. The phase selecting speed of this criterion may be faster than that of the criterion based on single-base sequential system and one-cycle fourier algorithm. The sensitivity of the single fault with high earth resistance and the phase-selecting reliability of phase-phase to ground fault all are improved in contrast to the phase selector using superimposed differential current between phases. Furthermore, the ATP simulations have verified the effectiveness of this scheme. In the end of this paper, the prospects of the correlation theory application to the protection relaying are expected.
作者 林湘宁 刘沛 杨春明 刘世明 LIN Xiang-ning1,2, LIU Pei1, YANG Chun-ming2, LIU Shi-ming1,2, (1. Huazhong University of Science and Technology, Wuhan, 430074, China; 2. Group of DongFang Electronic Information Technology, YanTai, 264001, China)
出处 《中国电机工程学报》 EI 北大核心 2002年第5期 16-21,共6页 Proceedings of the CSEE
基金 国家自然科学基金,湖北省自然科学基金
关键词 输电线路 相关分析 故障序分量 选相元件 transmission line superimposed com-ponent phase selector correlation analysis
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参考文献3

  • 1王维俭.电气主设备继电保护原理与应用[M].北京:中国电力出版社,1998.. 被引量:29
  • 2葛耀中..新型继电保护与故障测距原理与技术[M],1996.
  • 3吴湘淇.信号、系统与信息处理[M].北京:电子工业出版社,1999.. 被引量:1

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