Analysis and average-value modeling of an inductorless synchronous machine load commutated converter system

Synchronous machine fed load-commutated converters (SMLCCs) are commonly used for de power sources in marine and aircraft power systems, The focus of this paper is to set forth a model for SMLCCs for use in transient stability studies involving these systems. Although there has been considerable work in this area,much of this work has assumed the existence of a de link inductor whereupon the de link current is approximately constant. In practice; this filter is often eliminated, whereupon previous models are no longer valid. A new average-value model is set forth for SMLCCs in which there is no de link filter inductor, The model is validated both experimentally and through the use of a detailed computer simulation.