Modeling of Power Electronic Circuits and Control for Airborne Electrical System Analysis

This paper gives an overview of advanced power electronic circuits and control modeling techniques for power quality and dynamic stability study of airborne electrical systems. A unified modeling framework based on averaging is presented, and its applications to PWM as well as resonant and soft-switching converters are discussed in detail. Discontinuous conduction mode, peak-current control, variable-frequency PWM, and ac-dc converters with active power factor correction are among the specific topics discussed. Feasibility of automatic model generation by means of a symbolic analysis program package is also demonstrated. Compatibility among models of converters operated at significantly different switching frequencies is identified as a key issue for average-based analysis of large power electronic systems that requires future study.