Simulation of magnetic component models in electric circuits including dynamic thermal effects

• Published in: IEEE transactions on power electronics Vol. 17; no. 1; pp. 55 - 65
• Main Authors: Wilson, P.R., Ross, J.N., Brown, A.D.
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.01.2002; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Circuit simulation; Circuits; Computer simulation; Eddy currents; Electric power generation; Electric variables measurement; Electrical equipment; Electricity; Electronic systems; Electronics; Hysteresis; Magnetic circuits; Magnetic domains; Magnetic hysteresis; Magnetic losses; Magnetism; Nonlinearity; Power electronics; Power system modeling; Simulation; Temperature; Winding
• ISSN: 0885-8993; 1941-0107
• DOI: 10.1109/63.988670

It is essential in the simulation of power electronics applications to model magnetic components accurately. In addition to modeling the nonlinear hysteresis behavior, eddy currents and winding losses must be included to provide a realistic model. In practice the losses in magnetic components give rise to significant temperature increases which can lead to major changes in the component behavior. In this paper a model of magnetic components is presented which integrates a nonlinear model of hysteresis, electro-magnetic windings and thermal behavior in a single model for use in circuit simulation of power electronics systems. Measurements and simulations are presented which demonstrate the accuracy of the approach for the electrical, magnetic and thermal domains across a variety of operating conditions, including static thermal conditions and dynamic self heating.