The application discloses an electromagnetic transient on-demand interaction
simulation method and
system, a terminal and a storage medium, and belongs to the technical field of electromagnetic transient
simulation of power systems. The method is characterized by receiving a connection request sent by at least one
system operation center
client; sending the connection request to a
connection manager, enabling a corresponding first hub collaborative
simulation engine component, opening a first
communication channel of the first hub collaborative simulation engine component, obtaining an allowed connection response sent by a first subsystem, enabling a second
communication channel of a second hub collaborative simulation engine component of the
system operation center
client, and enabling the first subsystem and the second subsystem to establish a communication connection to obtain a plurality of historical
modal current data vectors; and starting target electromagnetic transient simulation according to the plurality of historical
modal current data vectors. Therefore, the application can realize on-demand dynamic access and disconnection of the subsystem, complete collaborative electromagnetic transient calculation, and improve the reliability of electromagnetic transient simulation results.