Device-Level Parallel-in-Time Simulation of MMC-Based Energy System for Electric Vehicles

The device-level electromagnetic transient (EMT) simulation with the nonlinear behaviour model (NBM) of insulated-gate bipolar transistors (IGBTs) and diodes can provide an accurate insight into power converters from perspective thermal performance energy efficiency. However, is rarely implemented in electric vehicles (EVs) due to its extreme computation complexity natively introduced by device models. To solve this problem, interpolation strategy designed based on parallel-in-time algorithm for modular multilevel converter (MMC) connected induction machine EV applications. MMC mathematically separated as multiple submodules same attributes, which be processed a parallel manner graphics processing unit (GPU). By implementing different time-step GPU, provides precise initial values solution process iteratively. accuracy proposed scheme validated commercial tools at level. In addition, system-level EVs carried out driving cycles, results demonstrate significant reduction time.