Medium-voltage power distribution network line parameter identification method

The invention relates to a medium-voltage power distribution network line parameter identification method. The method comprises the steps of obtaining measurement data of a head end and all subordinate distribution transformers of a power distribution network line in a to-be-identified region within a set time period; the measurement data is preprocessed; combining a multiple linear regression model to obtain topological data corresponding to the preprocessed measurement data at each time point; constructing a line parameter identification model based on an improved Newton-Raphson method; and inputting the topological data and the preprocessed measurement data into the line parameter identification model, and outputting to obtain a line parameter identification result. Compared with the prior art, timeliness and accuracy can be taken into consideration at the same time, and the purpose of simply and reliably identifying the power distribution network line parameters is achieved. 本发明涉及一种中压配电网线路参数识别方法，包括：获取设定时间