【摘要】 基于电力负荷曲线自身的周期性、规律性 ,提出一种自定义自变量域的门限函数 ,然后基于小波分析中小波包的概念 ,建立门限小波包。这种门限小波包对分段信号和非平稳性信号的描述将更方便、更准确。为信号分析 ,也为电力负荷预测提供了一种新的简便实用的数学理论和方法。更多还原

【Abstract】 Based on the periodicity and regularity of power load curve, we posed a user-defined independent variable gate-boundary function. Then based on the concept of wavelet package in wavelet analysis, we set up gate-boundary wavelet package. Using gate-boundary wavelet package to describe fractional and smoothless signal. We are easier and the results are more accurate. Gate-boundary wavelet package provides a new convenience practical mathematic theory and method for signal analysis and power load forecasting.更多还原