Abstract
High voltage gain DC-DC converter is a prime requirement for renewable applications, in particular for PV. Though numerous DC-DC converter is available for increasing the voltage gain, the passive elements requirement is higher which reduces the compactness, consequently, increases the cost of the system. To address this issue, a high gain DC-DC converter is reported recently. However, the number of passive elements is quite high which increases the size. To reduce the number of passive elements and maintain the same number of semiconductor devices, in this paper, a new switched inductor arrangement is proposed which is named as switched inductor double switch DC-DC converter (SL-DS-DC). Moreover, the proposed converter has a higher gain as compared to the recently reported converter. The proposed converter is analyzed in steady state and a comparative analysis is presented to prove the suitability. Finally, the proposed converter is validated experimentally.
Highlights
Power generation using photovoltaic (PV) is an emerging technology that can provide a clean and sustainable solution
Based on the inductor current profile, the step-up DC-DC converter can operate in continuous current mode(CCM) and discontinuous current mode(DCM)
The inductor current during charging period is given as iin = 2iL − i0 (19)
Summary
Power generation using photovoltaic (PV) is an emerging technology that can provide a clean and sustainable solution. The voltage level is highly fluctuating and low [1]. In these applications, the DC-DC boost converter plays an integrating role to regulate the voltage level [2]. DC-DC converter’s ability to operate in boost mode is dependent on the input inductor current. Based on the inductor current profile, the step-up DC-DC converter can operate in continuous current mode(CCM) and discontinuous current mode(DCM). The CCM is widely popular due to load independent voltage gain, lower current ripple, and better efficiency [3]
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