A high frequency dual-buck full-bridge inverter for small power renewable energy applications is proposed in this paper. The implementation of the wide band gap SiC (Silicon Carbide) power device contributes to the high switching frequency of 400 kHz. This high frequency contributes to reduced converter volume as well as improved power density, which greatly strengthens its portability and appl...

The phase-locked loop (PLL) is applied in grid-tied systems to synchronise converter operation with grid voltage, affecting stability and performance. Synchronous reference frame PLL (SRF-PLL) a popular synchronisation method due its simplicity reliability. Normal SRF-PLL cannot suppress DC offset, causing basic frequency phase oscillations.When irregular, bandwidth should be reduced ensure acc...