Uncertainty Propagation with an Asynchronous Temporal Co-simulation Method Applied to a Transmission Line Network

Time-domain co-simulation has become increasingly popular for dealing with complex industrial electromagnetic computing problems. However, these methods require the exchange of information and simulation results for each time iteration. Moreover, the systems to be studied often introduce uncertainties related to their input parameters. Therefore, uncertainty propagation plays an essential role in electromagnetic compatibility design, and its impact should be highly considered. To tackle these constraints, this paper proposes an asynchronous temporal co-simulation method able to deal efficiently with uncertainties. The purpose is to obtain the stochastic response of the global system after dividing it. This paper details the basics of the technique illustrated, first, with two applications that highlight the method's efficiency. Then, the focus is put on the uncertainty propagation within sub-systems. The results obtained are compared with the global simulation and validate the methodology.