An Interleaved DC-DC Converter for Low Voltage Bi-Polar DC Microgrid

This paper focuses on the design and analysis of a single input dual output (SIDO) non-isolated Boost-Luo interleaved (NBLI) DC-DC converter for low voltage bi-polar DC microgrid (LVBDCM), incorporating a voltage mode control (VMC). The presented converter integrates boost and negative Luo topologies. When compared to traditional converters of the same rating, the interleaving approach offers the advantages of lower current stress and less source current ripple. The converter that is being presented offers interleaving advantages in addition to multiple output voltage levels. In this regard, a NBLI converter is presented here. For a variety of applications, the converter can provide balanced or non-balanced output voltages, keeping output voltages steady even when loads are not balanced. On account of its voltage balancing capability, presented converter delivers DC-link voltage balancing for applications such as bipolar low-voltage DC (LVDC) distribution systems. This work comprises presented converter’s designing, modelling and output voltage control. The efficacy of the presented system is verified in MATLAB/Simulink.