Computer application in the analysis of rectifiers and inverters

In industry, prior to the building of a prototype, it is often economical and useful to have a model. The paper describes a macromodel development technique for power converters using the transfer function approach. It is shown that even though SPICE micromodels are useful at the `converter switch circuit´ level, for complex circuits modelling at the system (macro) level is required. Analytical models for controlled rectifiers and voltage and current source inverters can be constructed based on the transfer function approach. Using the popular SPICE/ORCAD software package and with the addition of a customised interface between them, a complete power electronic circuit can be designed and developed