zero sequence短语⁹⁶⁶⁷⁷⁺⁶ 基本例句 零序 In the paper, we utilize wavelet transform to analyze the transient zero sequence current and put forward a new criterion to select the fault line through many simulation experiments. 在理论研究和比较分析的基础上，利用小波包对故障暂态电流信号进行变换，提出了一个新的选线方法。 cnki