Modeling and Control of Hybrid Power Sourced High Gain DC-DC Converter

Solar energy plays a key role in feeding many electric loads such as households, education institutions and industrial applications. On the other hand, the fuel cells can realize zero emission power, enhanced efficiency, low operational costs and scalability. However, the inferior quality associated with the fuel cells (FCs) and solar cells is the production of a very low output voltage. Therefore, high gain step-up converters are required to get the desired dc voltage levels. This paper emphasizes the performance of a hybrid power sourced step-up converter. The FC polarisation and cell voltage characteristics are shown with a focus on the temperature effects. The modeling aspects of the solar PV panel are also presented in detail. The high gain converter dynamics are interpreted with the voltage-mode control (VMC) and averagecurrent mode control (ACMC) approaches. The simulation results are presented by considering various case studies in view of the line and load regulations. © 2021 School of Science, IHU. All rights reserved.