Distribution Electronic Power Transformer with Reduced Number of Power Switches

Nowadays power transformers are considered among the huge and expensive equipment because of their massive iron core and heavy copper windings. Since the size of thetransformers and the maximum power transition are reversely related, a new family of electronic power transformer has comeinto existence Which increase the transformer frequency, using power electronic converters. In addition to voltage transformation and good isolation which they bring about, thesetransformers are also associated with significant advantages, including considerable reduction in the size, power qualityimprovement, voltage profile improvement, etc. This paper attempts to introduce a new structure for Distribution Electronic Power Transformer (DEPT), using fewer power switches while maintaining the previous capabilities of the system. System performance and control strategies were successfully simulated in PSCAD/EMTDC and the simulation results are given below

Keywords:

distribution electronic power transformer , high frequency , voltage sags and swells , Push-Pull converter