| 基于巴特沃兹滤波器测量有效值 |
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| 引用本文： | 杨汉生 杨成梧 吕家云 朱仁义. 基于巴特沃兹滤波器测量有效值[J]. 电测与仪表, 2005, 42(10): 8-10 |
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| 作者姓名： | 杨汉生 杨成梧 吕家云 朱仁义 |
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| 作者单位： | [1]南京理工大学动力学院,南京210094 [2]巢湖学院,安徽巢湖238000 |
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| 基金项目： | 安徽省教育厅自然科学基金 |
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| 摘 要： | 因为具有良好的滤波性能，巴特沃兹滤波器在信号处理中得到了广泛的应用。本文讨论了巴特沃兹滤波器与正交小波的内在联系，给出了利用巴特沃兹滤波系数求电压、电流、有功功率、无功功率有效值的方法。理论和数据表明基于巴特沃兹滤波器测量有效值具有很高的精度。
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| 关 键 词： | 正交小波 有效值 巴特沃兹 滤波器 |
| 文章编号： | 1001-1390（2005）10-0008-03 |
| 收稿时间： | 2005-08-11 |
| 修稿时间： | 2005-08-11 |
Power Measurement Based on Butterworth Filters |
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| YANG Han-sheng, YANG Chen-wu, LV Jia-yun, ZHU Ren-yi. Power Measurement Based on Butterworth Filters[J]. Electrical Measurement & Instrumentation, 2005, 42(10): 8-10 |
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| Authors: | YANG Han-sheng YANG Chen-wu LV Jia-yun ZHU Ren-yi |
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| Affiliation: | 1.Power College, NUST, Nanjing 210094, China; 2.Chaohu College, AnHui Chaohu 238000, China |
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| Abstract: | The Butterworth filters are widely used in signal process owe to its better amplitude-frequence performance. This paper discusses the relationships between orthonormal wavelet and butterworth filter, together with simulation, a proposed power measurement method based on butterworth filter is presented. Theory and simulation have proved that power measurement based on butterworth filters has higher accuracy. |
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| Keywords: | orthonormal wavelet effective value Butterworth filter |
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