| 基于DSP的一种三相电路谐波电流检测算法 |
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| 引用本文： | 王群,耿云玲,何益宏.基于DSP的一种三相电路谐波电流检测算法[J].测试技术学报,2006,20(1):50-54. |
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| 作者姓名： | 王群 耿云玲 何益宏 |
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| 作者单位： | 国防科技大学,炮兵学院,湖南,长沙,410112;国防科技大学,炮兵学院,湖南,长沙,410112;湖南大学,电气与信息学院,湖南,长沙,410082;广西师范学院物理系,广西,南宁,530001 |
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| 基金项目： | 湖南省高校跨世纪学科带头人培养对象基金 |
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| 摘 要： | 为能用数字信号处理器(DSP)实现三相电路的谐波电流检测,从基于瞬时无功理论的一种谐波电流检测方法出发,分别讨论了三相电流中谐波正序和谐波负序分量检测的数字方法,由此得出了一种实时的谐波电流检测算法.该算法能准确地检测出三相电流中的谐波正序和谐波负序分量.当有源电力滤波器(APF)等装置的谐波电流检测电路采用该算法时,可根据需要适时调整DSP程序来形成不同的参考电流,以便更好地满足APF的不同补偿要求.仿真和实验研究结果表明了该算法的有效性和可行性.
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| 关 键 词： | 电能质量 瞬时无功理论 谐波电流 检测 三相电路 数字信号处理器(DSP) |
| 文章编号： | 1671-7449（2006）01-0050-05 |
| 收稿时间： | 2004-12-07 |
| 修稿时间： | 2004年12月7日 |
Harmonic Current Detection Algorithm of Three-Phase Circuit Based on DSP |
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| WANG Qun,GENG Yun-ling,HE Yi-hong.Harmonic Current Detection Algorithm of Three-Phase Circuit Based on DSP[J].Journal of Test and Measurement Techol,2006,20(1):50-54. |
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| Authors: | WANG Qun GENG Yun-ling HE Yi-hong |
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| Abstract: | To realize the harmonic current detection of three-phase circuit by Digital Signal Processors(DSP),the digital detecting methods for the harmonic positive and harmonic negative sequence components in three-phase current are discussed respectively,which proceeded from a harmonic current detection based on the instantaneous reactive power theory.A real-time harmonic current detection algorithm is obtained thereby.It can accurately detect the harmonic positive and the harmonic negative sequence components in three-phase current.When it is used by the harmonic current detection circuits in Active Power Filters(APF) and other installations,different reference currents can be formed by adjusting DSP program to satisfy the different compensation needs of APF.The simulation and experiment investigations show the validity and feasibility of this algorithm. |
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| Keywords: | power quality instantaneous reactive power theory harmonic current detection threephase circuit DSP |
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