Computer-aided design and application of sinusoidal switchingpatterns

摘要

This paper discusses the design of discrete switching sequencesfor synthesizing sinewaves in power-electronic circuits and drives. Thediscrete-level sinewave approximations described in this paper can beimplemented with reduced switching losses, in comparison to typicalpulse-width modulation patterns, and with user-selectable harmoniccontent. We present two design algorithms, including an algorithm basedon simulated annealing. The algorithms allow the engineer to selectswitching sequences that meet desired objectives or characteristics inalmost any context. In addition, we demonstrate the use of thesesequences experimentally in a practical application