Multiple‐input DC/DC converter topology for hybrid energy system

Abstract

In this study, a multiple-input non-isolated DC/DC converter topology is presented. The proposed multiple-input DC/ DC converter is proficient for energy diversification from renewable and storage energy sources individually or simultaneously. It can be operated in buck, boost and buck-boost modes of operation with the capability of bidirectional power flow to achieve desired voltage level on either side. The development of small-signal modelling based on state-space averaging has been discussed. In addition, a power management control scheme for the proposed converter has also been presented. The proposed concept has been investigated through simulation using the MATLAB/Simulink environment and validated experimentally on a laboratory prototype using dSPACE 1103 real time digital controller.

Experimental realization of a multi-input buck{boost DC{DC converter

“…The MIBBC has advantages in most features while it is comparable in the remaining features with respect to number of ports. From Table 4 it is observed that the topology presented in [4] and the proposed work gives isolation without a transformer, but the total number of switches in [4] is more. This is the merit of the proposed work.…”

“…HESs can meet future energy demands; hence they are becoming increasingly popular in the area of electrical power systems. Multi-input converter (MIC) systems are becoming more common than multiple single-input DC-DC converters in many applications due to their advantages in terms of size, volume, flexibility in control, reliability, cost efficiency, and voltage regulation [1][2][3][4][5][6][7][8]. Different MIC topologies proposed by the research community mainly focus on nonisolated and isolated structures [9][10][11][12][13].…”

Design, Fabrication and Performance Analysis of a Two Input—Single Output DC-DC Converter

“…Finally, the comparison of the MBDC converter with other MICs has been carried out based on several parameters like total part counts in the converter, the efficiency and voltage stress of the converter and are illustrated in Table 4. A performance comparison of the MBDC converter has been carried out with three other converters proposed in the literature [6,13,24]. The output voltage of the converters due to the variation in duty ratios d1 and d2 is analyzed in a detailed manner, and the results are given in Figure 15.…”

“…Simple and compact structure, lower system complexity and reduced cost are the main attractive features of MICs. Compared to single-input converters, MICs can provide a reliable power supply, which is one of the potential merits of MICs [4][5][6].…”

Design and control of bidirectional resonant converter for Vehicle-to-Grid (V2G) applications

“…The dc-dc converters manage power flow between the DC bus and battery. A number of bidirectional dcdc converters can be found in the literature [5][6][7][8][9][10][11][12][13][14]. The main focus in these converters is on achieving soft-switching in the power switches for a wide range of loading conditions to get rid of EMI and to enable very high frequency operation so that the size, and thus the cost, of the magnetics is minimized.…”