The storage of photovoltaic energy by associating batteries with ultracapacitors is investigated. A solar hybrid energy conversion system including photovoltaic module and a DC motor is modeled with a circuit-based approach. The different phases are simulated with a control on the voltage, current and state of charge. First, the duration of the storage of photovoltaic energy is acquired. Then, the current peaks supplied by ultracapacitors at DC motor start are depicted in the transient regime. The batteries are therefore less solicited at this instant and ensure steady-state feeding of the DC motor. The autonomy and implementation of the system in which ultracapacitors are integrated are discussed.
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Mohamed Ansoumane Camara (2013) studied this question.
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