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Under-frequency load shedding, rising electricity prices, changing environmental regulations and delays in constructing new power stations have plunged South Africa into one of its greatest challenges ever in the electricity sector. This has led consumers and producers alike to explore various energy generation options to assist the sector to meet the electricity demands. Electric utilities are faced...
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,...
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