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Optimizing the Integration of Photovoltaic and Wind Energy Systems for Enhanced Efficiency

Nimain Charan Nayak


This work provides a novel approach for integrating a large-capacity doubly excited induction generator (DFIG)-based wind energy system with solar
photovoltaic (PV). The suggested plan offers a practical PV-grid integration solution by utilising DFIG’s grid and rotor side power converters to pump PV power into the grid. This eliminates the requirement for a separate converter for PV power processing. Compared to a comparable rated inverter utilised in traditional PV-grid systems, the system efficiently provides a significant amount of PV power to the grid. Additionally, by preventing power from circulating during sub-synchronous operation when solar radiation is present, the suggested
strategy improves the overall efficiency of the system. Additionally, the system's stability benefits from turbine inertia, allowing for higher PV penetration into the power grid. The converters' efficiency is greatly increased by the intermittent but complimentary nature of wind and solar
PV. Moreover, the suggested plan has no effect on PV and wind energy systems' maximum power point tracking (MPPT) until there are sporadic environmental anomalies, which the PV power control algorithm can handle with
ease. To build the control strategy, we offer a thorough system model that is backed up by analysis, simulations, and experiments carried out on a lab prototype.

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