Analysis of output characteristics of three-phase voltage source inverter with new hysteresis control algorithms

The hysteresis current controller (HCC) has high performance and high reliability. Despite these advantages, the conventional HCC has a major drawback when applied to the three-phase voltage-source inverter (VSI): interphases dependency leads to very high-switching frequencies in the inverter. Therefore, new hysteresis control algorithms were created to reduce the switching frequency. However, in different papers are only algorithms of their work without analysis of the output characteristics. This paper presents analysis of the output characteristics of three-phase voltage source inverter with new hysteresis control algorithms.