Virtual protection real-time simulation method

The invention relates to a virtual protection real-time simulation method and belongs to the technical field of power relay protection. A virtual protection logic is built in a configuration visualization mode, and a simulation data file is produced through a primary system simulation tool; the simulation data file is captured and analyzed through a message capturing and sending process and a message analysis process, and sent to the virtual protection logic; the virtual protection logic carries out protection logic operation according to the received simulation data file, and action information is produced and returned to the message capturing and sending progress. Due to the fact that the virtual protection logic is built in the configuration visualization mode, readability is high, and modification is convenient. SV and GOOSE data in IEC61850 are received and sent through a WinPcap interface, data communication real-time performance is ensured, real-time closed loop simulation is achieved between virtual protection and a simulation system at the Windows environment, and the problems that an existing relay protection simulation process is complex and long in simulation time are solved.