Disturbance source rapid positioning method and system based on waveform correlation coefficient

The invention relates to a disturbance source rapid positioning method and system based on a waveform correlation coefficient. The method comprises the following steps: acquiring a system frequency curve from 5 seconds before a disturbance occurrence moment to 120 seconds after the disturbance occurrence moment; acquiring a main operation power plant and a large load curve in the whole system from 5 seconds before the disturbance occurrence moment to 120 seconds after the disturbance occurrence moment; calculating the correlation between each main operation power plant and the large load and the system frequency; and quickly positioning the position of the operation power plant or the large load with the maximum correlation. In order to solve the problem of rapid positioning of the disturbance source causing asynchronous power grid frequency fluctuation, a waveform correlation coefficient is adopted as a correlation criterion of a power plant or a load and a frequency waveform in a system, and a rapid positio