Single-Phase Single Stage High Gain Six Switch Four-Port Converter

This paper proposes a single-phase single-stage high gain six switch four-port (6S4P) converter with a novel modulation scheme. The four ports are 1) a low voltage DC port 2) a high voltage DC port, 3) AC port1 and 4) AC port2. For effective operation of the proposed converter, novel Rectified Inverse Level-shifted Sinusoidal Pulse Width Modulation (RILSPWM) and Phase-shifted Rectified Level-shifted Sinusoidal Pulse Width Modulation (PRLSPWM) schemes are proposed and employed. The proposed converter along with the modulation scheme achieves high voltage gain for both DC and AC ports, and also the ac ports are operated with different magnitudes and frequencies. Thus, improving the power density and reliability of the proposed converter with reduced cost. The performance of the proposed converter is evaluated in the MATLAB/Simulink environment, and the results are presented.