The comparative study of Buck-boost, Cuk, Sepic and Zeta converters for maximum power point tracking photovoltaic using P&O method

Abstract

Photovoltaic electricity generation is one alternative to use of renewable energy source. Efficiency of photovoltaic systems can be upgraded by operating photovoltaic panel at its optimum power point by using maximum power point tracking. Getting maximum power from the solar panels needed DC-DC converters by using the algorithm of MPPT. This paper presents a comparison study of the Buck-boost, Cuk, Sepic and Zeta converters as a device of MPPT. The algorithm for maximum power point tracking was a perturb and observe method. The simulation results of fourth converters were evaluated and compared, the parameters were observed of each DC-DC converters such forms of ripple current signal, the voltage on the input and the output sides, the input power and output power, as well as a steady state period and isolation signal between the input and output sides.