Abstract |
This paper presents a comprehensive co-simulation method of electro-magnetic (EMT) and electromechanical (RMS) dynamic models in MATLAB/Simulink to investigate transient stability in large scale hybrid AC/DC grids. The modeling of modular multilevel converter (MMC) as well as co simulation of EMT-RMS programs in MATLAB/Simulink is first described. For further reducing the unnecessary data exchange time between EMT and RMS programs, data exchange in the loop interaction method is introduced. With this method, the frequent data exchange through MATLAB workspace is avoided, and the co-simulation is thus accelerated significantly. |