An Average-Value Model for the Five-Level Robicon-Type Drive

The Robicon-type drive has remained a popular medium-voltage drive option since its conception, and is often found as a part of complex multi-converter configurations. Considering this, there is a surprising lack of literature on the average modeling of topology itself. This paper is an effort at attempting to model the average nature of a five-level Robicon-type drive. The topology is modeled as a cascade connection of three individual stages to form the complete model. The developed average-value model (AVM) is validated against a corresponding switching model using simulation tools. The results corroborate the validity of the AVM.