Advances in AC drive technology

Today, the adjustable speed AC drive industry is experiencing dynamic advances in applying various new technologies to standard drives which were historically confined to research labs. These advances are leading to many practical benefits for the users of this type of equipment including: lower initial costs, smaller size, robustness to eliminate nuisance tripping, enhanced motor and drive protective capabilities, reduced mean-time-to-repair, and improved performance capabilities that greatly reduce the risk of improper application. This paper provides an overview of these advances in the three interrelated fields of power semi-conductor devices, drive packaging and control algorithms.<>