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| Practical algorithm for accurate earth current of core based on eight term cosine window |
| Liu Nianhao, Wen Guoqiang, Wan Enzhong |
| Beijing Xuji Electrical Company, Beijing 100085 |
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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.
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Received: 06 September 2018
Published: 21 May 2019
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| Cite this article: |
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Liu Nianhao,Wen Guoqiang,Wan Enzhong. Practical algorithm for accurate earth current of core based on eight term cosine window[J]. Electrical Engineering, 2019, 20(5): 59-63.
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https://dqjs.cesmedia.cn/EN/Y2019/V20/I5/59
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[1] 戴澜, 姜岩峰, 刘文楷. 基于Matlab的高速高精度ADC测试研究[J]. 计算机测量与控制, 2010, 18(9): 2044-2045, 2049.
[2] 景杨, 陈艳. 基于Matlab探讨舍入误差对数值计算的影响[J]. 信息通信, 2015(5): 39-41.
[3] 周爱华, 姜雪菲. 一种加8项余弦窗FFT的谐波检测方法[J]. 山东理工大学学报(自然科学版), 2018, 32(2): 59-65.
[4] 许珉, 刘玮. 加8项余弦窗插值FFT算法[J]. 电力系统保护与控制, 2015, 43(11): 27-32.
[5] 李志军, 张川博, 张珈玮, 等. 改进型余弦窗在虚拟仪器谐波分析中的应用[J]. 现代电子技术, 2018(15): 108-113.
[6] 刘昊, 王猛, 王昌吉, 等. 一种实时精确估计电力谐波和间谐波参数的方法[J]. 电力系统自动化, 2014, 38(20): 90-95.
[7] 朱俊伟, 李天友, 蔡金锭, 等. 基于五项莱夫-文森特窗的三谱线插值FFT谐波分析[J]. 电气技术, 2015, 16(3): 34-39.
[8] 王保帅, 肖霞. 一种用于谐波分析的高精度多谱线插值算法[J]. 电工技术学报, 2018, 33(3): 553-562.
[9] 张红梅, 韩万刚. FIR滤波器时延分析及其在信号融合中的应用[J]. 武汉大学学报(工学版), 2016, 49(2): 303-308.
[10] 贾君霞. 基于Matlab的FIR滤波器设计的探讨[J]. 自动化与仪器仪表, 2014(12): 110-112.
[11] 朱超, 梅军, 王椿丰, 等. 基于低延迟有限冲击响应滤波器的差动保护采样率转换算法[J]. 电工技术学报, 2013, 28(10): 241-248, 319.
[12] 杜伟, 戴永辉, 王武, 等. 一种带IIR滤波器的UPS旁路掉电检测算法[J]. 电气技术, 2016, 17(8): 24-27. |
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2019, Vol. 20 
