Title :
Coordinate transformation and model reduction for efficient simulation of coupled circuit-field problems
Author :
Vu-Quoc, L. ; Zhai, Y. ; Ngo, K.
Author_Institution :
Florida Univ., Gainesville, FL, USA
fDate :
6/23/1905 12:00:00 AM
Abstract :
We present a new algorithm to transform any complex system of linear first-order ODEs or second-order undamped ODEs, resulting from the discretization of field PDEs, into 1-D equivalent circuit system. This transformation algorithm offers an extremely simple and convenient way to incorporate field problems in circuit simulators to solve coupled circuit-field problems. We also present a model reduction strategy based on the proposed coordinate transformation algorithm. Numerical example involving a voltage regulator module with MOSFET devices shows a significant reduction of simulation time compared to the solution without using the proposed transformation
Keywords :
circuit simulation; equivalent circuits; partial differential equations; power MOSFET; reduced order systems; semiconductor device models; thermal analysis; voltage regulators; 1-D equivalent circuit system; MOSFET devices; circuit simulators; coordinate transformation; coupled circuit-field problems simulation; field partial differential equations; linear first-order ordinary differential equations; model reduction; second-order undamped ordinary differential equations; simulation time; voltage regulator module; Capacitance; Circuit simulation; Coupling circuits; Electrothermal effects; Equations; Equivalent circuits; Finite element methods; Heat sinks; Insulated gate bipolar transistors; Reduced order systems;
Conference_Titel :
Power Electronics Specialists Conference, 2001. PESC. 2001 IEEE 32nd Annual
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-7067-8
DOI :
10.1109/PESC.2001.954432
