Three-phase voltage source NPC soft-switching inverter for interactive energy storage plants

摘要

This paper presents feasible performance of digitally-controlled three-level three-phase voltage source soft switching inverter with two Auxiliary Resonant DC link snubbers which can operate under a condition of Zero Voltage Switching (ZVS). Theoperating principle of this inverter topology is suitable for high power energy storage utilization system is discussed as compared with two-level soft switching inverter. The system effectiveness of new inverter treated here are proved on the basis ofthe experimental results.