Analysis of Non-Isolated Multi-Port Single Ended Primary Inductor Converter for Standalone Applications

Abstract

Abstract:A non-isolated Multiport Single Ended Primary Inductor Converter (SEPIC) for coordinating photovoltaic sources is developed in this paper. The proposed multiport converter topologies comprise a Single Input Multi yield (SIMO) and Multi Input Multi Output (MIMO). It is having the merits of decreased number of parts and high power density. Steady state analysis verifies the improved situation of both the proposed topologies, which is further checked through simulation results.Keywords: single input multi output; multi input multi output; single ended primary inductor converter

A Novel Modular Multiport Converter for Enhancing the Performance of Photovoltaic-Battery Based Power Systems

“…However, it kept the centralized structure of PV/battery strings that The MPC topology can be fully isolated implementing multi-winding transformers with half-bridge topology [5] or full-bridge topology [6][7][8] to allow full isolation between all ports. Other alternatives are partially isolated [9][10][11][12][13][14] or non-isolated topologies [15][16][17][18][19][20][21][22]. The isolated and partly isolated MPCs are better choices for applications that require some sort of galvanic isolation, however the use of transformer may reduce the power density of such converters.…”

Modular Multi-Port Ultra-High Power Level Power Converter Integrated with Energy Storage for High Voltage Direct Current (HVDC) Transmission

“…[17] eliminates the active switches that are connected with the output port by series-connecting the secondary sides of two transformers, whose primary sides are linked with two DC power sources, while the converter is only suitable for unidirectional power flow. Non-isolated MPCs use modules in parallel connection to obtain the multi-port configurations, which reduce the volume due to the elimination of bulky transformers [18][19][20]. However, they are mainly applied for the stand-alone systems such as electric vehicles (EVs) because galvanic isolation is preferred for the grid-tie systems for the safety reason.…”