Primal Domain Decomposition Method with Direct and Iterative Solver for Circuit-Field-Torque Coupled Parallel Finite Element Method to Electric Machine Modelling

Daniel Marcsa, Miklos Kuczmann
2015 Advances in Electrical and Electronic Engineering  
The analysis and design of electromechanical devices involve the solution of large sparse linear systems, and require therefore high performance algorithms. In this paper, the primal Domain Decomposition Method (DDM) with parallel forward-backward and with parallel Preconditioned Conjugate Gradient (PCG) solvers are introduced in two-dimensional parallel time-stepping finite element formulation to analyze rotating machine considering the electromagnetic field, external circuit and rotor
more » ... . The proposed parallel direct and the iterative solver with two preconditioners are analyzed concerning its computational efficiency and number of iterations of the solver with different preconditioners. Simulation results of a rotating machine is also presented. Keywords Field-circuit-torque coupling, parallel finite element method, primal domain decomposition method.
doi:10.15598/aeee.v13i5.1410 fatcat:cqubceqg7vcppmj32zojdvxi5m