Performance Evaluation of Auxiliary Leg based Three-phase Converters for Independent Output Power Control

초록

This paper presents a comprehensive performance evaluation of a 3-phase 4-wire converter integrated with an auxiliary circuit designed for active thermal control techniques. This study starts by presenting an introduction to the importance of 3-phase 4-wire converters in power systems and their application in active thermal control technique based on per-phase control, which can extend the lifespan of particular phase leg or facilitate operation under uneven conditions. Additionally, the purpose and importance of auxiliary circuit is discussed in 3-phase 4-wire converter system. The examined converter systems includes 2-level and 3-level converters. To assess the converter's performance, a series of simulations were conducted using different output power in both balanced and unbalanced conditions. The results of these evaluations demonstrate the effectiveness of the 3-phase 4-wire converters with auxiliary circuit in active thermal control using different phase output powers. Comparative analyses are provided to highlight performance evaluation between various 3-phase 4-wire converter with auxiliary circuit using different switching devices.

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