Multi-input interleaved DC-DC converter for hybrid renewable energy applications

Abstract

The increasing demand for hybrid energy systems based on renewable energy sources has enabled the new dimension for multi-input converter (MIC). Various topologies have been introduced over the last decade. However, most of these topologies have several drawbacks in terms of design complexity or efficiency. Therefore, this research aims to introduce a multi-input DC-DC converter for hybrid renewable energy applications. The proposed multi-input converter is able to hybridize different sources such as solar PV array and PEMFC. Analysis and simulation have been carried out for the double input two-phase interleaved converter in operating the boost mode. The proposed converter is designed in matlab simulink by using interleaved boost converter method to achieve a boosted and smoothened output. The proposed topology has shown a remarkable performance in terms of output voltage boosting, voltage ripple reduction as well as enhanced efficiency through interleaved boosting technique. From the simulation results, it can be observed that the proposed converter can gain high efficiency which is higher than 97%. The obtained results have been validated with previously published works and the proposed technique has been proven to yield compatible and improved outcomes.

Inter-connected AC/DC HMGS power management with 3-phase and 1-phase ILC

“…The (10) explains the variations on frequency and DC voltage due to the change in AC load demand. When DC loads is overloaded, the power utilized by DC sub grid at the load side is the sum of total power supplied by DC power and power shared by ILC-1 from AC sub-grid expressed in (11).…”

“…To extract maximum output power for a cluster MG, a modified reverse current flow method is proposed for radial system [9]. A multiport DC-DC boost converter is designed for integrating PV and proton exchange membrane fuel cell [10]. A fuzzy logic controller is designed to drive and control the PV wind and battery system for smooth power output without fluctuation and maintains stable voltage and frequency [11].…”

Review of DC-DC boost converter derived topologies for renewable energy applications

“…Though there are many topological developments, there exist drawbacks when it comes to design complexity and efficiency. The proposed multi-input converter is able to hybridize different sources such as solar PV array and proton-exchange membrane fuel cells (PEMFC) [13]. The voltage output from solar PV systems is of low in nature, which needs to be boosted to a level required with the help of DC-DC converters for grid-connected systems.…”