Boost Multi-port Converter with Simultaneous Isolated DC, Non-isolated DC and AC Outputs

Abstract

In modern residential applications, the dc based power systems are being increasingly implemented for smart and green energy efficient operation. The power requirement for these residential applications can be fulfilled by small localized generation (i.e., renewable energy), which can serve different variety of consumer loads. Some of the critical loads in these applications may require galvanic isolation from the input source. This paper proposes a boost multi-port converter with simultaneous isolated dc, non-isolated dc and ac outputs. These non-isolated dc, isolated dc, ac loads and dc source are interfaced using a single power converter topology. The salient features of proposed converter include less device count, number of power conversions and the ability to regulate both the outputs independently using decoupled modified sinusoidal pulse width modulation(DMSPWM) technique. The characteristics of the proposed converter with DMSPWM control have been studied in this paper and simulated using a MATLAB/Simulink. The proposed operation has been verified using FPGA controlled laboratory prototype. And also, the proposed topology is compared with conventional topologies in various aspects.