Design, prototype validation, and reliability analysis of a multi‐input DC/DC converter for grid‐independent hybrid electric vehicles

Abstract

Significantly, the performance of a grid-independent hybrid electric vehicle (GIHEV) is decided by a multi-input converter in it. This paper discusses the detailed mathematical modeling, design, prototype validation, and analysis of a multi-input DC-DC converter (MIC). This converter actively accommodates fuel cell and solar photovoltaic (PV) panel as sources and utilizes the concept of multiple switching frequencies to get wide regulation of output voltage and power flow. The average large-signal modeling, small-signal modeling, and steady-state modeling are demonstrated to achieve accurate design and analysis. The reliability analysis of the proposed converter along with the respective mathematical background is discussed. The proposed system design is validated with the help of an experimental setup and tested effectively. The proposed converter promises higher gain and 95.58% efficiency with fewer switches, low voltage stress, and fewer circuit components.

PID Control of Hybrid DC-DC Converter System in Complex Load with Double Reference Time

“…DC-DC converters are needed to connect solar cells to electrical devices and to provide energy balance [10,11]. In order to increase efficiency and stability in energy systems, the design, analysis, and control of power circuits that provide transformation in the system are of great importance [12,13]. In order to optimize and control the DC-DC converter structures, the mathematical structure of the system should be analyzed and created [14,15].…”

Failure Rate Analysis of Full Bridge DC/DC Converter in Hard and Soft Switching Control Schemes

“…A reliable three port converter is presented for near space vehicles (25) . A multi input DC/DC converter applicable for fuel cell and PV systems is described (26) . For a LLC converter reliability is calculated using the actual stress values (27) .…”