Development of a real time simulator based on ATP-EMTP and sampled values of IEC61850-9-2

• Real time simulator for relay testing based on ATP-EMTP and IEC61850 is developed.
• The minimum simulation time step achieved was 69 μs.
• A real time simulator was achieved with low budget based on personal computer.
• The real time simulator sends digitally the calculated information in real time through Ethernet.
• The communication process requires for its execution between 20 and 40 μs.

This paper addresses the implementation of a real time simulator based on an existing electromagnetic simulating program called ATP-EMTP. The simulator is developed to stream sampled values on an Ethernet network using the protocol IEC61850-9-2. This implementation is done on a general purpose PC. The minimum simulation time step and the maximum sample rate achieved were 69 μs and 240 S/cycle respectively. The main components of the development as well as the evaluation of the performance of the simulator for different cases are described in this paper.