A New Multi-Output DC-DC Converter for Electric Vehicle Application

Abstract

Multiport converters play a significant role in portable electronic and electric vehicle (EV) applications. In literature, different configurations of single-input multi-output (SIMO) converters are presented. Most of the SIMO converters generate the outputs with operating constraints on the duty ratio and charging of inductors. The cross-regulation problem is still a challenge in SIMO converters design. A SIMO topology is proposed in this study to overcome the limitations mentioned earlier. It can generate three different output voltages without constraint on the duty cycle and inductor currents (like iL1 > iL2 > iL3 or iL1 < iL2 < iL3). Cross regulation problems do not exist in the proposed topology, so the load voltage V01 (V02) (V03) is not affected by the variation of output current i03 (i02) (i01). The loads are isolated from each other during control. In the laboratory, a 200 W prototype circuit is developed; simulation and experimental results are validated.INDEX TERMS Multiport converters, single input multi output converters.

A non‐isolated bidirectional high gain integrated multiport converter for grid tied solar PV fed telecom load

“…During any perturbation in the input and control variables, the small signal analysis is carried out for the different ports. The input, output, state, and control variables can be expressed as sum of a steady state component and a small signal variable as shown in (21).…”

“…The parameters considered for comparison are number of components, HV port gain, number of bidirectional (BD) ports, and number of unidirectional (UD) ports, efficiency, and cost. The proposed MPC is having operability as that of the converters in references [14][15][16][17][18][19][20][21][22][23][24][25] and is devoid of coupled inductors for high voltage port. The proposed converter possesses a non-isolated high voltage port with a boost configuration and the converter gain is regulated for output and input modes ascertained by ( 3) and (5), respectively.…”

“…The voltage gain is limited due to the time shared operation of the inductor and also leads to a large ripple in the input current. Further, the four port converters in reference [21] encompass bidirectional capability, though cannot be realized for applications having a high voltage port for bidirectional power flow with the grid. In reference [22] two bidirectional ports are introduced, but the high voltage port is realised using a high frequency transformer.…”

A Single Inductor Multi-Port Power Converter for Electric Vehicle Applications

“…The associate editor coordinating the review of this manuscript and approving it for publication was Alon Kuperman . point tracking (MPPT) technique [3], [4]. At the moment, the use of solar PV energy systems meets the requirements for electric vehicle applications.…”

High step‐up multi input–multi output DC–DC converter with high controllability for battery charger/EV applications

“…This restriction can be solved if the input sources can be controlled separately each other. Some discontinuous input current MI dc/dc converters are presented in [15,16] that can be performed in Buck, Boost, and Buck-Boost modes. In [17][18][19][20], MI dc/dc topologies with high voltage gain and continuous input current are presented.…”