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| 摘要: |
| 准确、快速地检测电力系统电流中的谐波成分是保证有源电力滤波器具备良好工作性能的关键。提出了基于自适应有限脉冲响应(FIR)预测滤波器的谐波实时检测系统。论述了自适应滤波器谐波检测原理．利用最小均方算法(LMS)对所需检测信号进行预测。采用Matlab进行了FIR的预测滤波器实验仿真。仿真说明该方法跟随性能好，在3／4个基频周期内就能跟踪上基波的变化。 |
| 关键词: 有源电力滤波器 谐波检测 预测 |
| DOI： |
| 分类号:TM302.1 |
| 基金项目: |
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| Harmonic detection based on adaptively predictive filter |
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DAI Li-ping LIU Kai-pei
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| Abstract: |
| Precise and quick detection of current harmonic in power system is important for APF(Active Power Filter) performance.A real-time harmonic detection system based on adaptive FIR predictive filter is presented.The harmonic detection principle is discussed,and the least mean square algorithm is used to predict the signals to be detected.The FIR predictive filter is tested with Matlab.Results show its good performance,which can follow the fundamental variation within 3/4 period. |
| Key words: active power filter,harmonic detection,prediction, |
