Electric power system state estimation method taking into account new energy time-space relevance

The invention relates to the technical field of electric power system operation and control technology and provides an electric power system state estimation method taking into account new energy time-space relevance. The method includes steps of 1, reading power grid information data; 2, performing system metering and configuration; 3, performing modeling based on time-space relevance according to new energy system state; 4, performing estimation on Phi 1 and Sk by adopting M groups of history state data; 5, performing state predication of k moment according to estimation values as in the description; 6, performing predication auxiliary state estimation; 7, sending a state estimation result of the k moment to a power grid control center. According to the invention, a defect that static state estimation cannot meet needs for randomness and volatility of new energy grid connection is made up and real time, effective and accurate state estimation on new energy grid connection is realized. Short time state predi