| 提高速动保护精确性滤波新算法 |
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| 引用本文： | 叶飞,刘观起,胡道徐,张进,纪卉. 提高速动保护精确性滤波新算法[J]. 华北电力大学学报(自然科学版), 2011, 38(4): 18-22 |
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| 作者姓名： | 叶飞 刘观起 胡道徐 张进 纪卉 |
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| 作者单位： | 1. 华北电力大学电气与电子工程学院,河北,保定0710032
2. 思源弘瑞自动化有限公司,上海,201108 |
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| 摘 要： | 提出了一种新的滤波算法,该算法由零、极点配置法设计的狭窄带通滤波算法和半周波傅里叶算法相结合.这种滤波算法能够对低频谐波分量和高频谐波分量起良好的抑制作用,所需数据窗短,能够快速提取基频分量.试验测试结果表明其滤波效果优于传统滤波算法,满足微机保护速动的要求.
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| 关 键 词： | 高频谐波 低频谐波 带通滤波 微机继电保护 |
The new filtering algorithm for improving accuracy of instant protection |
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| YE Fei,LIU Guan-gi,HU Dao-xu,ZHANG-Jin,JI Huei. The new filtering algorithm for improving accuracy of instant protection[J]. Journal of North China Electric Power University, 2011, 38(4): 18-22 |
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| Authors: | YE Fei LIU Guan-gi HU Dao-xu ZHANG-Jin JI Huei |
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| Abstract: | A new filtering algorithm is presented which combines the half-cycle discrete Fourier transform and band pass filter designed by zero-pole placement.The new filtering algorithm has effective to restrain low and high frequency harmonics,Not only can quickly extract the fundamental frequency component,but also requires a short data window.Test results show that the filtering results of the new algorithm are better than that of the conventional algorithms and meet the requirement of the fast responding time of microprocessor-based protection. |
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| Keywords: | low frequency harmonic high frequency harmonic band pass filter microprocessor-based protection |
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