ZVS Turn-on Triangular Current Mode (TCM) Control for Three-Phase Two-Level Converters With Reactive Power Control

High switching frequency operation in power converters leads to a significant reduction size at the cost of increased losses. Thus, soft techniques become necessary reduce WBG devices have benefit low turn-off losses, but turn-on losses are still significant. Triangular Current Mode (TCM) control can achieve zero voltage (ZVS) without adding extra resonant components or active converter. For three-phase operation, switching, sinusoidal currents, and phase synchronization achieved by operating phases combination Discontinuous Conduction (DCM), TCM clamped mode. This method is extended reactive cases this paper. The proposed scheme full ZVS for all three phases. operate DCM+TCM+Clamped modes operation. algorithms tested validated on GaN converter, achieving 99% efficiency 700 VA with density 110 W/in 3 .