New energy inertia time constant determination method based on delay compensation

The invention belongs to the technical field of new energy inertia response, and relates to a new energy inertia time constant determination method based on delay compensation, which comprises the following steps: firstly, based on a frequency change rate and a frequency offset possibly existing in a power grid simulator generation system, reasonably selecting a time node of full dynamic process analysis according to an inertia key evaluation index; the analysis precision is improved; secondly, calculating and compensating an active power-frequency delay link in an inertia response process so as to eliminate an evaluation error caused by delay; and finally, an inertia continuous evaluation algorithm based on a differential synchronous machine swing equation is designed, and accurate evaluation of the new energy inertia is realized. According to the new energy inertia time constant determination method based on delay compensation, the test frequency is selected through the maximum frequency deviation and RoCoF