Abstract
In this paper, a new active power control (APC) with enhanced maximum power point tracking (MPPT) algorithm are implemented to improve the performances of a solar photovoltaic system (SPV) based standalone water pumping station. The APC uses proportional resonant controller with antiwindup (AWPRC) for ac voltage regulation without saturation phenomena and with high power quality at the point of common coupling. Furthermore, the proportional resonant controller design method for optimal gains to achieve high performance during transition period in terms of phase margin and desired settling time is analyzed. To achieve the MPPT with less oscillation while protecting the battery energy storage system from overvoltage, an enhanced power ratio variable step based perturbation and observation algorithm is used. The effectiveness of the developed control strategies are validated through simulations and experimental results.
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