Efficient Simulation of Field/Circuit Coupled Systems with Parallelised Waveform Relaxation

This paper proposes an efficient parallelised computation of field/circuit coupled systems co-simulated with the Waveform Relaxation (WR) technique. The main idea of the introduced approach lies in application of the parallel-in-time method parareal to the WR framework. Acceleration obtained by the time-parallelisation is further increased in the context of micro-macro parareal. Here, the field system is replaced by a lumped model in the circuit environment for the sequential computations of parareal. The introduced algorithm is tested with a model of a single-phase isolation transformer coupled to a rectifier circuit.

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