基于8项余弦窗的高精度铁心接地电流实用算法

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摘要本文介绍了基于8项余弦窗的铁心接地电流的实用算法,首先根据硬件技术水平确定了Matlab仿真中干扰信号的参数,在特定比例的干扰信号下,仿真验证了不同参数对算法精度的影响,确定了合理的算法参数,并在实际DSP硬件上测试算法的精度,验证了数字信号处理仿真结论。

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	刘念浩
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	万恩忠

关键词 ： 8项余弦窗, 铁心接地电流, 干扰信号, Matlab仿真, 数字信号处理

Abstract：An accurate algorithm for earth current of core is studied in the paper, eight term cosine window is used for the algorithm. The algorithm theory is simulated in Matlab first with random interference added to the current signal. Certain amount of interference is used according to the actual hardware noise level. Simulation result is made based on the interference level. Some simulation parameters are optimized and the algorithm is used on a real DSP processor. The calculation result of the DSP processor is also given in the paper.

Key words： eight term cosine window earth current of core interference Matlab simulation digital signal processing

收稿日期: 2018-09-06 出版日期: 2019-05-21

作者简介: 刘念浩（1981-）,男,汉族,本科,高级工程师,研究方向为智能配用电。

引用本文:

刘念浩, 温国强, 万恩忠. 基于8项余弦窗的高精度铁心接地电流实用算法[J]. 电气技术, 2019, 20(5): 59-63. Liu Nianhao, Wen Guoqiang, Wan Enzhong. Practical algorithm for accurate earth current of core based on eight term cosine window. Electrical Engineering, 2019, 20(5): 59-63.

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https://dqjs.cesmedia.cn/CN/Y2019/V20/I5/59