Power flow computations are important for operation and planning of the electricity grid, but computationally expensive because nonlinearities size system equations. Linearized methods reduce computational time often have disadvantage that they not applicable to general grids. In this paper we propose a novel linearized power (LPF) technique is able handle PQ- PV-buses, works on both transmissi...

A transformer-less unified power flow controller (UPFC) is a electronic device consisting of series and shunt voltage source converters (VSCs) that are not connected to common DC bus. It can control in medium (MV) distribution networks without the need for interfacing transformers. Hence there significant reduction size cost compared conventional UPFC. This paper investigates operating range UP...

Abstract To obtain the practical power flow algorithm for distribution network with distributed photovoltaic (PV), change in phase and amplitude of calculated node voltage number iterations, computation time Newton-Raphson algorithm, back/forward sweep implicit Z bus Gaussian are obtained 5-node circular photovoltaic. The results show that can not converge be used PV. Both their consistent, but...

this paper proposes a flexible power electronic transformer (fpet) for the application in the micro-grids. the low frequency transformer is usually used at the point of common coupling (pcc) to connect the low voltage grid and utility network to each other. the conventional 50hz transformer results in enhanced low voltage-grid power management system during grid-connected operation. in this pap...

as a native fermented dairy drink, doogh is an important industrial product in iran. however, its characteristics have not been completely evaluated. this study evaluated the flow behavior, particle size distribution and stability of non-fat doogh as affected by the row material employed (fresh skim milk or skim milk powder) and the total solids (ts) content of the final drink. the viscosity of...