A Novel High Voltage Gain and Low Voltage Stress DC-DC Boost Converter for Photovoltaic Applications

Photovoltaic (PV) panels rely on environmental conditions such as irradiation or temperature, and thus they require an interface boost converter. Non-isolated DC-DC boost converters have a lower volume, lower costs and lower power dissipation compared with isolated converters. In this study, a novel high efficiency non-isolated DC-DC boost converter is proposed to be used in PV systems. The converter includes only one semiconductor switch which causes lower switching losses. The main advantages of the proposed converter include low input current ripples, low voltage stress on semiconductor switches, high efficiency and low conduction losses. Moreover, maximum power is achieved from PV panels. A prototype of the proposed converter has been built, and experimental results are presented which explicitly validate theoretical results, suggesting that this boost converter is desirable for PV applications.