Abstract
This paper deals with an active switched inductor network-based high gain boost converter. By using less number of components in circuit topology, a higher gain in voltage can be attained at a small duty cycle value by using the proposed converter, which helps in reducing the switch voltage stress and conduction loss. In addition, it draws continuous input current, has lower diode voltage stress, and lower passive component voltage ratings. The operating principles and key waveforms in Continuous Conduction Mode (CCM) and Discontinuous Conduction Mode (DCM) are presented. Parameter design, power loss calculation, characteristics, and comparative study with other non-isolated converters have been presented. Finally, a 200W hardware prototype is constructed and the viability of the proposed converter is verified through the experimentally obtained results.
Highlights
A great deal of research has been carried throughout the world to explore renewable energy sources to cope up with the ever-increasing depletion of natural resources and their harmful effects on the environment as well
To achieve a high gain in voltage, this paper proposes a novel converter topology with reduced current stress across active switches to provide a stable constant dc voltage
High voltage stress has been generated across the switch and the voltage gain is lower than the topology proposed
Summary
A great deal of research has been carried throughout the world to explore renewable energy sources to cope up with the ever-increasing depletion of natural resources and their harmful effects on the environment as well. The applications where galvanic insulation is not required, DC-DC converters of the non-isolated type are incorporated to attain a high voltage gain thereby reducing the overall size, weight, and volume since a high frequency transformer is not present and leading to an improved efficiency. The other drawbacks associated with this technique are complex switching control logic, high voltage/current stress, and high loss in energy [2]. To achieve a high gain in voltage, this paper proposes a novel converter topology with reduced current stress across active switches to provide a stable constant dc voltage. The proposed topology has the advantage of providing a high voltage gain, low current stress, and low conduction loss on the active switches, simplified control, and high efficiency. The proposed converter is a viable solution for the integration of solar PV panels into a DC microgrid because of the above-mentioned benefits where a high overall output voltage can be obtained by incorporating the proposed converter with each PV panel
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