Results 21 to 30 of about 394,161 (298)

Transmission Grid Power Quality: Unbalance Factor Forecast by a Novel Three-Phase Power Flow [PDF]

, 2022
This paper aims at investigating the impact of the increasing demand for electricity on the power quality of the transmission networks. In particular, investigations on the transmission network structure as a source of voltage unbalance are made by ...
Rusalen L., Benato R., Gardan G.
core   +1 more source

An Optimal Power Flow Algorithm for the Simulation of Energy Storage Systems in Unbalanced Three-Phase Distribution Grids

Energies, 2021
An optimal power flow algorithm for unbalanced three-phase distribution grids is presented in this paper as a new tool for grid planning on low voltage level. As additional equipment like electric vehicles, heat pumps or solar power systems can sometimes
Lukas Held, Felicitas Mueller, Sina Steinle, Mohammed Barakat, Michael R. Suriyah, Thomas Leibfried   +5 more
doaj   +1 more source

Single-stage three-phase AC to DC conversion with isolation and Bi-directional power flow [PDF]

, 2014
An approach for three-phase AC to DC conversion is proposed, which consists of a single-stage while offering galvanic isolation, soft-switching, bi-directional power flow and a significant reduction of inductive and capacitive energy storage.
Vermulst, B.J.D., J. L. Duarte, Duarte, J.L.; id_orcid, Vermulst, BJD Bas, Vermulst, B.J.D.; id_orcid, Lomonova, E.A.; id_orcid, Wijnands, C.G.E., B. J. D. Vermulst, C. G. E. Wijnands, Lomonova, E.A., Duarte, JL Jorge, Duarte, J.L., Lomonova, E Elena, E. A. Lomonova, Wijnands, CGE Korneel   +14 more
core   +1 more source

A Vector-Controlled Distributed Generator Model for a Power Flow Based on a Three-Phase Current Injection Method

Energies, 2013
This paper proposes a vector-controlled distributed generator (DG) model for a power flow based on a three-phase current injection method (TCIM). In order to represent the DG models in the power flow, steady-state phase current output equations are ...
Seon-Ju Ahn, Pyeong-Ik Hwang, Seung-Il Moon   +2 more
doaj   +1 more source

A novel three-phase unbalanced power flow solution for islanded microgrids with distributed generations under droop controls

Energy Reports, 2022
With the increasing penetration rate of distributed generations (DGs) in the distribution network, microgrids are widely applied for the benefits of efficiency and flexibility. The demands of power flow analysis for microgrids are increasing.
Hao Bai, Xueyong Tang, Zhiyong Yuan, Qingsheng Li, Shuhui Pan, Pu Deng, Changcheng Zhou, Ning Luo   +7 more
doaj   +1 more source

Local solutions of the optimal power flow problem [PDF]

, 2013
The existence of locally optimal solutions to the AC optimal power flow problem (OPF) has been a question of interest for decades. This paper presents examples of local optima on a variety of test networks including modified versions of common networks ...
Waqquas A. Bukhsh, Grothey, Andreas, Paul A. Trodden, Bukhsh, Waqquas A., Trodden, Paul, Trodden, P., McKinnon, Kenneth, Trodden, Paul A., Bukhsh, Waqquas, Bukhsh, W., Grothey, A., McKinnon, K., Andreas Grothey, Ken I. M. McKinnon, McKinnon, Ken I.M.   +14 more
core   +1 more source

Comprehensive Evaluation and Testing of Multi-Phase Line-Wise Power Flow Method for Unbalanced AC Power Systems

IEEE Access
In response to the growing complexity and unbalanced nature of future distribution systems, this paper presents a comprehensive evaluation of the recently proposed multi-phase line-wise power flow (MPLW PF) method across various benchmark systems.
Shima Bz Homayie, Bala Venkatesh
doaj   +1 more source

Effects of a Hydraulic Series Connection and Flow Direction on Electricity Generation in a Stack Connected with Different Volume MFCs

Applied Sciences, 2021
Three microbial fuel cells (MFCs) with different volumes (S-, M-, and L-MFCs) were operated at individual flow (phase I) and serially connected flow modes (phase II for forward flow and phase III for reverse flow) at the same flow rate.
Jaecheul Yu
doaj   +1 more source

Assessing the Static Security of the Italian Grid by Means of the N-1 Three-Phase Contingency Analysis

Energies
The ongoing replacement of synchronous machine generators (SMs) with converter-interface generators (CIGs) is raising the voltage unbalance of power systems, affecting power quality and grid stability.
Giovanni Gardan, Luca Rusalen, Roberto Benato   +2 more
doaj   +1 more source

A Loop-Analysis Theory Based Linear Power Flow Method for Three-Phase Distribution Power System

IEEE Access, 2019
The linear power flow (LPF) models are particularly important in the context of optimization algorithms for three-phase distribution systems with the high penetration of distributed renewable generations. With several approximations on network modelling,
Hongwei Li, Hailin Zhou, Tong Liu, Qi Chen   +3 more
doaj   +1 more source