eMTCoSim offers a hybrid simulator comprising EMT and dynamic phasor-based simulators. ETAP eMTP simulator is used to model the portion of the network where fast transients analysis is needed. The transient stability solver is used to simulate the rest of the network in phasor domain.
ETAP has developed several integration methods and signal processing algorithms (waveform to phasor data conversion) to accurately map instantaneous EMT and dynamic phasor data that offer a fast, easy-to-use, feature rich, and robust co-simulation solver.