Abstract
The efficiency of photovoltaic power generation is affected by the changeable weather conditions. This paper improves the efficiency of a standalone PV system over a wider range of operating conditions by employing novel switch adaptive control to an interleaved boost converter. With various loads, simulation and experimental results show that the interleaved boost converter with novel switch adaptive control offers better performance and higher conversion efficiency under changeable weather conditions.
Highlights
Photovoltaic (PV) generation is gaining increased importance as renewable source due to a number of advantages such as absence of fuel cost, low maintenance, and pollution-free operation [1] [2]
This paper proposes a circuit of an interleaved boost converter with novel switch adaptive control for PV systems
A perturbation and observation algorithmis used to guarantee maximum PV power that is generated from the PV panel; the proposed switch control is used to operate the interleaved boost converter at high efficiency all times under changeable weather
Summary
Photovoltaic (PV) generation is gaining increased importance as renewable source due to a number of advantages such as absence of fuel cost, low maintenance, and pollution-free operation [1] [2]. The disadvantages of conventional boost converter are high voltage stress for the switch and large peak current for the power devices and passive components [19]. This problem can be overcome by using an alternative power converter topology, such as an interleaved converter [2]. The main rewards of the interleaved converter include lower ripple power at the output due to an effective increase in switching frequency This allows the use of lower size of output capacitor that would be relatively large if conventional boost converter is used [20]
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