Generalized averaging method for power conversion circuits

• Published in: IEEE transactions on power electronics Vol. 6; no. 2; pp. 251 - 259
• Main Authors: Sanders, S.R., Noworolski, J.M., Liu, X.Z., Verghese, G.C.
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.04.1991; Institute of Electrical and Electronics Engineers
• Subjects: 240100 - Power Systems- (1990-); Applied sciences; DC TO DC CONVERTERS; Electrical engineering. Electrical power engineering; ELECTRICAL EQUIPMENT; ELECTRONIC CIRCUITS; Exact sciences and technology; Fourier series; Linear approximation; PERFORMANCE TESTING; Power conversion; Power electronics, power supplies; POWER SYSTEMS; POWER TRANSMISSION AND DISTRIBUTION; Pulse width modulation; Pulse width modulation converters; Resonance; RLC circuits; Switches; SWITCHING CIRCUITS; Switching converters; TESTING; Design; Averaging method; Power converter; Analysis method; Simulation; Direct current convertor; Static convertor; Resonant structure; State space method; Generalization; Pulse duration modulation
• ISSN: 0885-8993; 1941-0107
• DOI: 10.1109/63.76811

A more general averaging procedure that encompasses state-space averaging and that is potentially applicable to a much broader class of circuits and systems is presented. Examples of its application in resonant and PWM power convertors are presented. The technique is shown to be effective on a number of examples. including resonant type converters. The approach offers refinements to the theory of state-space averaging, permitting a framework for analysis and design when small ripple conditions do not hold. The method may find applications in simulation and design since it is considerably easier to simulate an averaged model than a switched model.< >