Simultaneous MPPT and MEPT for Asymmetric Parallel Boost-Type Converters

Abstract

Energy harvesting from different sources is challenging if maximum power and efficiency must be tracked in green energy intermittency scenarios. Studies for simultaneous maximum power and efficiency points tracking are aimed at a single source of considerable power generation capability. This paper proposes a low computational burden algorithm for simultaneous maximum power and efficiency point tracking for a paralleled-input single-output boost-type electronic converter operating in DCM with sequential triggering, asymmetrical inputs, and low-power sources. In numerical simulations, a stable 95% of efficiency is gained over a wide range of operation conditions, even considering noise (bounded but reasonable) and parasitics of the main components.