Research And Analysis Of A Novel Single-Stage Full-Bridge Buck-Boost Inverter

Analysis and study the present condition and the development trends of inverter technology, study the PWM inverter technology and it' s control method.A novel single-stage full-bridge series-resonant buck-boost inverter (FB-SRBBI) is proposed in this paper. The proposed inverter only includes a full-bridge topology and a LC resonant tank without auxiliary switches. The output voltage of the proposed inverter can be larger or lower than the dc input voltage, depending on the instantaneous duty-cycle. The proposed inverter circuit topology provides the main switch for turn-on at ZCS by a resonant tank. The nonlinear control strategy is designed against the input dc perturbation and achieves well dynamic regulation.An average approach is employed to analyze the system.MATLAB simulation are employed in the paper,the simmlation results are in positive with the theory.