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电网技术  2006 

独立分量分析法在电能质量监测与分析中的应用

, PP. 81-84

Keywords: 电能质量监测,独立分量分析(ICA),电压跌落,电压上升,欠电压,电压波动,瞬时脉冲

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Abstract:

介绍了目前的电能监测设备,讨论了电能质量监测与分析方法,分析了傅里叶变换、短时傅里叶变换、Wigner谱分析和小波变换的不足之处,提出可以将独立分量分析法(independentcomponentanalysis,ICA)应用于电能质量的监测与分析中。基于ICA的原理通过2个实验模拟了电网中出现电压跌落、电压上升、欠电压、电压波动、瞬时脉冲等电能质量扰动的情况,对含强噪音与干扰的电网电压进行了监测和分析,并用仿真试验验证了将ICA应用于电能质量监测与分析的正确性和有效性。

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