Auto-balancing transformer based on power electronics

Abstract: An auto-balancing transformer based on power electronics is designed and proposed to prevent voltage or/and current unbalances arising on the primary side system from infecting the secondary side system, or in reverse. The multilevel converters and interleaving parallel connection technology are adopted in the transformer design to match the demand of power automatically balancing and high-voltage and high-power application. The operating principle is analyzed in detail and an effective control scheme is developed. To verify the new features of the proposed design, a detailed computer simulation model is established using Matlab\Simulink and typical simulations are carried out. And the experimental verification is also presented. All show satisfactory results. [Copyright &y& Elsevier]