| 基于改进型SVSLMS 算法的谐波电流检测方法简 |
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| 引用本文： | 陈瑞松,何政平,李圣清,曾欢悦.基于改进型SVSLMS 算法的谐波电流检测方法简[J].变流技术与电力牵引,2014(1):57-60. |
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| 作者姓名： | 陈瑞松 何政平 李圣清 曾欢悦 |
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| 作者单位： | 湖南省火电建设公司;湖南工业大学电气与信息工程学院; |
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| 基金项目： | 国家自然科学基金项目(51077046);湖南省自然科学基金项目(14JJ2116);湖南省重点建设学科项目(201176) |
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| 摘 要： | 分析了传统基于Sigmoid函数变步长最小均方（Sigmoid Variable Step-size Least Mean Square,SVSLMS）谐波电流检测方法产生稳态误差的原因,提出了一种改进型SVSLMS谐波电流检测方法。该方法重新定义和选择反馈误差系数,通过采用一种选频滤波器对原始反馈误差进行滤波处理,减小对检测性能的影响,进一步提高谐波检测响应速度和稳态精度。仿真结果验证了该方法的有效性和实用性。
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| 关 键 词： | 改进型SVSLMS算法 谐波 检测 |
Harmonic Current Detecting Method Based on Improved SVSLMS |
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| CHEN Rui-song,HE Zheng-ping,LI Sheng-qing,ZENG Huan-yue.Harmonic Current Detecting Method Based on Improved SVSLMS[J].Converter Technology & Electric Traction,2014(1):57-60. |
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| Authors: | CHEN Rui-song HE Zheng-ping LI Sheng-qing ZENG Huan-yue |
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| Institution: | 1. Hunan Thermal Power Construction Company, Zhuzhou, Hunan 412007, China; 2. College of Electrical and Information Engineering, Hunan University of Technology, Zhuzhou, Hunan 412007, China ) |
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| Abstract: | This paper presents an improved SVSLMS （Sigmoid Variable Step-size Least Mean Square） harmonic current detecting method based on the analysis of the steady-state error generated by traditional SVSLMS. This method redefines and selects the feedback error coefficient, By using a frequency-selective filter for filtering the original feedback error, it reduces the effects of harmonics on detection performance, further improves the response speed and steady precision. Simulation results verify the effectiveness and practicality of this method. |
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| Keywords: | improved SVSLMS algorithm harmonic detection |
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