A Broadband Enhanced Nodal-Order Reduction Methodology for Large-Scale Equation Sets of 3-D Transient Field Problems

A broadband enhanced nodal-order reduction (ENOR) methodology is proposed to reduce the order of equation sets of 3-D transient field problems. The proposed reduction method is validated by using the numerical results on a thermal problem of a classic 7-layer insulated-gate bipolar transistor (IGBT) module in terms of computation times and accuracies.