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In this paper, an autonomous photovoltaic (PV) power generation/storage system connected to an AC nonlinear load is investigated. Depending on the load demand, the PV output power and the battery condition, five modes of operation are feasible with the changing load power. The steady-state analysis of the system for the entire operating modes is presented. Based on the concept of controllability sensitivity,...
The conventional controller design of the autonomous photovoltaic (PV) energy system feeding a load is usually based on a dual-loop cascade controller structure. The controllers are designed based on the small signal equations of the non-linear system. However, most of the elements comprising the energy system are non-linear in nature such that controllers based on small signal models are not effective...
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