This work presents a distributed generation system (DG) that combines system of a wind turbine (WT) and photovoltaic (PV) using a unified power quality conditioner (UPQC). Along with providing active power (AP) to the utility grid, Wind-PV-UPQC improves PQ indicators, for example, voltage drops/surges, harmonics of grid voltages, and PF. Since Wind-PV-UPQC depends on dual compensation scheme, the parallel converter works as a sinusoidal voltage source, while the series converter works as a sinusoidal current source. In this way, a smooth transition from grid operation to island operation and vice versa can be achieved without load voltage transitions. In addition, in order to overcome the problems through abrupt solar radiation or wind speed variations, a faster power balance is achieved between the wind turbines, the PV array, and the grid, as FFCL pursue the production of the current references of series converter. Consequently, the dynamic reactions of the converter currents and the voltage of dc bus are enhanced. A comprehensive analysis of flow of the AP through the converters is done to ensure a proper understanding of how Wind-PV-UPQC works. Finally, the simulation results are shown to estimate the dynamic and static performance of Wind-PV-UPQC in conjunction with the power distribution system.

Rotating flow for hybrid nanofluid over a stretching surface in the presence of magnetic effect is examined numerically. Hybrid nanofluid consists of graphene oxide and molybdenum disulfide in water base fluid. The inclusion of more than one nanoparticle is carried out due to some outstanding features such as astonishing thermal conduction, which are substantial in heat exchangers, nanotechnology, electronics, and material sciences. In order to attain numerical resolution, the partial differential formulation has been transformed into the corresponding ordinary differential equations. By implementation of apposite similarity variables, the classical Runge–Kutta method and shooting argument have been held to yield finding for the dependent quantities. Thermal transportation enhancement is the need of the day, so this study is made to meet the necessity of industries. A velocity component shows an upsurge with raise in the magnetic field parameter. The magnitude of the velocity component for hybrid nanofluid has a lower boundary as compared to single nanofluid. The temperature profile expressed that hybrid nanofluid is more effective than single nanofluid. These investigations are applicable to the field of the biomedical, automotive industry, nuclear cooling systems, and heat exchangers.

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