Working condition division method and device considering long-time scale harmonic characteristics

The invention relates to a working condition division method considering long-time scale harmonic characteristics, and the method comprises the steps: obtaining a harmonic voltage sequence of each harmonic source, and the harmonic voltage sequence comprises a plurality of data points; constructing a cloud model; dividing the harmonic voltage sequence into a plurality of working conditions through a cloud model, and obtaining a first division result containing a plurality of working condition division points; dividing the harmonic voltage sequence into a plurality of working conditions through a piecewise linearization method, and obtaining a second division result containing a plurality of working condition division points; and taking a union set of the first division result and the second division result as a final working condition division result. 本发明涉及一种考虑长时间尺度谐波特征的工况划分方法，包括：获取各谐波源的谐波电压序列，所述谐波电压序列包括若干数据点；构建云模型；通过云模型，将所述谐波电压序列划分为多种工况，得到包含多个工况划分点的第一划分结果；通过分段线性化法，将所述谐波电压序列划分为多种工况，得到包含多个工况划分点的第二划分结果；取第一划分结果和第