Power distribution network topology identification method based on voltage correlation coefficient

The invention discloses a power distribution network topology identification method based on a voltage correlation coefficient, and the method comprises the steps: removing redundant electrical equipment in a power distribution network model, and simplifying a topology model of a power distribution network; constructing the simplified power distribution network topology model into an abstract model, determining a voltage correlation coefficient based on the voltage of a transformer substation bus and a distribution transformer load point, and generating a voltage correlation coefficient matrix; a graph search algorithm is adopted to obtain a relation set of voltage correlation coefficients and switch states, the power distribution network topology model is constructed into a probability network model, parameters of the probability network model are reasoned, states of all switches in the model are obtained, and then the operation state topology condition of the power distribution network is determined; according to the method, the practicability and reliability of the identification technology are improved, a solid foundation is provided for efficient and reasonable power distribution network planning design and operation control, and the scientificity and rationality of scheduling decisions are effectively improved.