Smart Charge Management of Photovoltaic using Burp Charge System on Energy-Saving Configuration with Fast Tracking Algorithm |
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BibTeX: |
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@article{IJIRSTV6I2004, |
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Abstract: |
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Recently, renewable energy has been significantly attractive to our life facing on the alternative energy sources possibly to replace the fossil energy. Except for the renewable energy directly converting to grid, green house, and so on, the applications through indirect conversion are still the focus of attention, especially for such as standalone system, mobile solar charger, hybrid system, and so on. However, converters are always indirectly via a battery-regulated dc bus to capture renewable energy, which is fairly common practice. To achieve pulse charge using direct photovoltaic (PV) energy, it is necessary to keep the energy supply from PV module continuous and optimum, especially to prevent energy supply from interrupting during the pulse break period. To perform the mentioned idea, a PV burp charge system (PV-BCS) proposed is to make PV energy pump continuous with optimum maximum power point tracking (MPPT), which increases the PV utilization, and to dispatch the remaining PV energy for further storage in the pulse break period. A smart charging management (CM) presents three kinds of charge statuses, a burp pulse (BP) charge and two pulse charges, which charges three batteries, Bm, B1, and B2 concurrently and individually. The two pulse charges provided are for accompanying the BP charge in order to keep the PV energy supply continuous and cherish the remaining energy for further storage. The BP charge for Bmis composed of a positive pulse (PP) charge in a positive burp pulse (PBP) period and negative pulse (NP) charge in non-PBP period. The other two batteries B1 and B2 are always with PP charge in the non-PBP period, in which B1 charges the remaining PV energy to keep the PV energy supply continuous, realizing the energy treasuring concept; B2 charges the discharge amount from Bm by intensely discharging, which indeed is equivalent to the NP charge, achieving the energy recovery concept. |
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Keywords: |
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Photo voltaic power, battery charging, smart charging, maximum power point tracking, reduced power mode |
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