New energy station fault equivalence calculation method based on Hamiltonian principle

A Hamiltonian principle-based new energy station fault equivalent calculation method comprises the following steps of: firstly, establishing a Hamiltonian model of a grid-connected inverter, and obtaining a Hamiltonian equation of a new energy unit; secondly, according to the characteristics of a Hamiltonian equation, obtaining coherence between inverters; and finally, proposing a coherence-based aggregation algorithm of the new energy inverters, and carrying out multi-level aggregation modeling of comprehensive dynamic response on an inverter group by utilizing a coherence criterion of a Hamiltonian equation. According to the method, the Hamiltonian principle is applied to the derivation of the clustering equivalence influence coefficient of the new energy grid-connected inverter for describing the comprehensive dynamic characteristics of the system, and the unique characteristics of the representation of the comprehensive dynamics of the system can be reflected, so that a more accurate new energy unit clust