| 基于DSP的电网谐波实时检测算法的改进和实现 |
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| 引用本文： | 廖延娜,梁青.基于DSP的电网谐波实时检测算法的改进和实现[J].电子科技,2009,22(8):4-6. |
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| 作者姓名： | 廖延娜 梁青 |
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| 作者单位： | 西安邮电学,院电子与信息工程系,陕西,西安,710121 |
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| 摘 要： | 以DSP芯片TMS320C5402为核心,设计并实现了实时谐波检测硬件系统。针对电网频率振荡导致的同步采样误差,文中对A/D转换后的数据进行二次软同步采样,在此基础之上进行加窗插值FFT分析以提高谐波检测的精度。实验数据表明该系统测量误差在0.5%以内,可满足工业测量要求。
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| 关 键 词： | 电网谐波 实时检测 TMS320C5402 软采样 加窗插值FFT |
Improvement and Implementation of Power Grid Harmonics Real-time Measurement Based on TMS320C5402 |
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| Liao Yanna,Liang Qing.Improvement and Implementation of Power Grid Harmonics Real-time Measurement Based on TMS320C5402[J].Electronic Science and Technology,2009,22(8):4-6. |
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| Authors: | Liao Yanna Liang Qing |
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| Affiliation: | Department of Electronic and Information Engineering;Xi'an Universityof Post and Telecommunications;Xi'an 710121;China |
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| Abstract: | A power grid harmonics real-time measurement hardware system based on TMS320C5402 is designed and implemented.In order to reduce synchronous-sampling errors caused by power grid frequency oscillation,the AD conversion data are softly synchronously sampled again and then analyzed by the algorithm of cosin-window and interpolated FFT.Experiment data show that the system measurement error is less then 0.5%,which meets the requirements of industrial measurement. |
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| Keywords: | power grid harmonics real-time measurement TMS320C5402 soft sampling cosin-window and interpolated FFT |
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