| 基于小波变换模极大值原理和能量分布曲线的电力系统短期扰动分析 |
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| 引用本文： | 严居斌,刘晓川,杨洪耕,张斌.基于小波变换模极大值原理和能量分布曲线的电力系统短期扰动分析[J].电网技术,2002,26(4):16-18,33. |
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| 作者姓名： | 严居斌 刘晓川 杨洪耕 张斌 |
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| 作者单位： | 四川大学,四川省,成都市,610065 |
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| 摘 要： | 用小波变换模极大值原理进行电压上凸、电压下凹、短时停电等电力系统短期扰动定位和确定扰动持续时间，用小波变换能量分布曲线来识别电压上凸、电压下凹、短时停电。仿真结果表明，该方法对识别电压上凹、电压下凹、短时停电三种短期扰动有较好的效果。
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| 关 键 词： | 电力系统 短期扰动分析 小波变换 模极大值原理 能量分布曲线 |
| 文章编号： | 1000-3673(2002)04-0016-03 |
ANALYSIS OF SHORT-TERM POWER SYSTEM DISTURBANCE BASED-ON MODULO MAXIMUM PRINCIPLE AND ENERGY DISTRIBUTION CURVE OF WAVELET TRANSFORM |
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| YAN Ju bin,LIU Xiao chuan,YANG Hong geng,ZHANG Bin.ANALYSIS OF SHORT-TERM POWER SYSTEM DISTURBANCE BASED-ON MODULO MAXIMUM PRINCIPLE AND ENERGY DISTRIBUTION CURVE OF WAVELET TRANSFORM[J].Power System Technology,2002,26(4):16-18,33. |
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| Authors: | YAN Ju bin LIU Xiao chuan YANG Hong geng ZHANG Bin |
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| Abstract: | By use of wavelet transform modulo maximum the short time disturbances of power system, such as voltage swell, voltage sag and short time interruption, are detected and the durations of disturbances are determined. These short time disturbances can be identified by wavelet transform energy distribution curve. Simulation results show that with this method the above mentioned three kinds of short time disturbances can be well identified. |
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| Keywords: | short term disturbance wavelet transform modulo maximum principle energy distribution curve |
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