Abstract
Centralized inverter topologies are the current preferred technology for medium and large-scale grid-connected photovoltaic (PV) installation because of their low cost and simplicity. However, the output power of these traditional topologies is mainly suffered from partial shading effects and mismatch between PV modules. Power losses due to shadow may reach up to 30% of total power expected, depending on PV array configuration and atmospheric conditions. This paper proposes a novel grid-connected centralized inverter topology based on a new photovoltaic current collector optimizer (CCO) to enhance the power extracted from PV array during partial shading or mismatch conditions. Computer simulation is carried out using MATLAB/Simulink in order to confirm the performance of the proposed topology. Simulation results show that the proposed topology offers an excellent steady-state response, fast dynamic response, perfect and robust tracking of the maximum power point during partial shading condition.
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Refaat, A., Korovkin, N. (2020). A New Photovoltaic Current Collector Optimizer to Enhance the Performance of Centralized Inverter Topologies. In: Murgul, V., Pasetti, M. (eds) International Scientific Conference Energy Management of Municipal Facilities and Sustainable Energy Technologies EMMFT 2018. EMMFT-2018 2018. Advances in Intelligent Systems and Computing, vol 982. Springer, Cham. https://doi.org/10.1007/978-3-030-19756-8_20
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DOI: https://doi.org/10.1007/978-3-030-19756-8_20
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