| 一种高效的电力系统谐波检测方法 |
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| 引用本文： | 范必双,王玉凤,王英健.一种高效的电力系统谐波检测方法[J].广东电力,2007,20(10):1-6. |
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| 作者姓名： | 范必双 王玉凤 王英健 |
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| 作者单位： | 长沙理工大学,电气与信息工程学院,长沙,410076 |
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| 摘 要： | 介绍了一种高效的电力系统谐波检测方法.该方法的整体系统设计从多方面考虑,以提高谐波检测的精度和速度,因此,选择高速、高精度的A/D转换器件(ADS8364),确保采样值的精确度,并采用锁相环(phaselocked loop,PLL)技术来同步被测信号,以减小由非同步采样所产生的误差.重点介绍了基-4 FFT的谐波测量原理,详细地阐述了这种高效的并行算法在现场可编程门阵列(field programmable gate array,FPGA)上的硬件实现过程,最后通过仿真验证了该方法的实效性.
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| 关 键 词： | 谐波检测 现场可编程门阵列(FPGA) 基-4 FFT A/D转换器件(ADS8364) 锁相环(PLL) |
| 文章编号： | 1007-290X（2007）10-0001-06 |
| 收稿时间： | 2007-04-07 |
| 修稿时间： | 2007年4月7日 |
An Efficient Technique of Harmonic Measurement in Power system |
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| FAN Bi-shuang,WANG Yu-feng,WANG Ying-jian.An Efficient Technique of Harmonic Measurement in Power system[J].Guangdong Electric Power,2007,20(10):1-6. |
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| Authors: | FAN Bi-shuang WANG Yu-feng WANG Ying-jian |
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| Affiliation: | School of Electrical and Information Engineering. Changsha Univ. of Science and Technology. Changsha 410076. China |
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| Abstract: | In this paper,an efficient technique of harmonic measurement in power system is presented.The system is designed to promote the accuracy and speed of harmonic measurement.Firstly,the high speed and precision A/D converter(ADS8364)is selected to ensure the precision of sampling data.Secondly,the phase-locked loop(PLL)is used to synchronize the tested signal to minish the error caused by asynchronous sampling.In this paper,an emphasis is put on the harmonic measurement of the radix-4 FFT,and the hardware based realization of the efficient concurrent arithmetic on field programmable gate array(FPGA)is presented.Lastly,a simulation is carried out to validate the actual effect of the technique. |
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| Keywords: | harmonic measurement field programmable gate array(FPGA) radix-4 FFT analog-to-digital converter(ADS8364) phase-locked loop(PLL) |
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