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High Gain DC-DC Boost Converter with Coupled Inductor for PV Systems
Parth R. Rana,  Dr. Bhavin J. Shah
This Paper presents the design and analysis of a high-voltage gain dc–dc converter for photovoltaic (PV) systems. The output voltage of the renewable energy sources like photovoltaic system and fuel cell is low. So it is necessary to use dc-dc boost converter. In this work, a new boost dc-dc converter by using coupled inductor is proposed. The proposed converter achieves extremely large voltage conversion ratio with appropriate duty cycle and reduction of voltage stress on the power devices. A passive clamp network around the primary inductor ensures the recovery of energy trapped in the leakage inductance, leading to drastic improvement in the voltage gain and efficiency of the system. This passive clamp circuit reduces the voltage stress on the switch. These characteristics make it possible to design a compact circuit with high static gain and high efficiency for industry applications. This paper proposes a new converter strategy with closed loop control action. With the help of closed loop system we will get constant output voltage even if the output of PV panel is changing. The operating principles of the proposed converter is discussed in detail. At last, the simulation of the dc-dc converter is performed in MATLAB/Simulink for open loop system as well as for the closed loop system.
Keywords- Coupled Inductor, DC, Voltage Stress, Voltage gain
Unique Identification Number - IJEDR2102020Page Number(s) - 119-132Pubished in - Volume 9 | Issue 2 | May 2021DOI (Digital Object Identifier) -    Publisher - IJEDR (ISSN - 2321-9939)
Cite this Article
Parth R. Rana,  Dr. Bhavin J. Shah,   "High Gain DC-DC Boost Converter with Coupled Inductor for PV Systems"
, International Journal of Engineering Development and Research (IJEDR), ISSN:2321-9939, Volume.9, Issue 2, pp.119-132, May 2021, Available at :http://www.ijedr.org/papers/IJEDR2102020.pdf