Lightning Strike Impacts on Hybrid Photovoltaic-Wind System

Zmnako Mohammed, Hashim Hizam, Chandima Gomes

Abstract


Study the impacts of lightning-induced transient overvoltage on a hybrid PV-Wind system has been addressed in this work. Overvoltage that is generated due to lightning stroke travels along the system where it can be very harmful to the expensive equipment of the system such as PV models, inverters, charge controllers, batteries, transformers, generator. etc. The simulation model of a system has been completed by using PSCAD/EMTDC software. The system comprises of 2 MW PV farm, battery system, 2.1 MW wind farm and loads which are all connected to the common AC bus and then to the utility grid through an interfacing transformer. Lightning current is generated by using the double exponential function, From the simulation results, when the lightning current is injected to the AC and DC sides of PV system, the transient current and voltage have appeared at different points of the hybrid system. The results were obtained for 8/20 μs and 10/350 μs standards lightning waveforms with current magnitude of 100 kA.


Keywords


Hybrid PV-Wind system modeling, Lightning, Transient impact, Overvoltage, Overcurrent

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DOI: http://doi.org/10.11591/ijeecs.v8.i1.pp115-121

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