| 卡尔曼滤波器在微机保护采样信号提取中的应用 |
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| 引用本文： | 王炳焱,王微波. 卡尔曼滤波器在微机保护采样信号提取中的应用[J]. 重庆电力高等专科学校学报, 2007, 12(3): 15-17,22 |
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| 作者姓名： | 王炳焱 王微波 |
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| 作者单位： | 广东省电力调度中心,广东,广州,510600;重庆市电力公司杨家坪供电局,重庆,400050 |
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| 摘 要： | 采样信号提取的准确性直接影响微机保护判断逻辑的正确性。长期处于固定位置的保护装置会受到来自外界的各种电磁噪声干扰,其中包含一种安装环境与装置本身相结合产生的具有规律性的随机噪声。本文首先对该噪声进行各种时域和频域的分析,再根据其特征利用三次样条插值进行辨识,设计针对噪声的卡尔曼滤波器,最终提出基于卡尔曼滤波器的消除信号中噪声的方法。
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| 关 键 词： | 卡尔曼滤波器 微机保护 三次样条插值 |
| 文章编号： | 1008-8032（2007）03-0015-03 |
| 修稿时间： | 2007-08-03 |
Application of Kalman Filter in Data Acquisition of Protection Based on Microcomputer |
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| WANG Bing-yan, WANG Wei-bo. Application of Kalman Filter in Data Acquisition of Protection Based on Microcomputer[J]. Journal of Chongqing Electric Power College, 2007, 12(3): 15-17,22 |
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| Authors: | WANG Bing-yan WANG Wei-bo |
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| Affiliation: | 1. Guangdong Power Distribution Center, Guangzhou Guangdong 510600; 2. Congqing Power Corp. Yang Jia Ping Power Bureau,Chongqing 600050 |
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| Abstract: | The logical operation of microcomputer-based protection is affected by signal acquisition precision. These devices will be disturbed by EMI around them for long time.Some kind must be involved that is regular merging with interference generated by devices.Through the time domain and frequency domain analysis of noise,the noise features can be identified by cubic spine interpolation.According to the above,digital filter- based Kalman filter is got and it can eliminate the noise. |
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| Keywords: | Kalman filter microcomputer-based protection cubic spine interpolation |
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