Results 31 to 40 of about 1,267,098 (173)

Convex Relaxation of Optimal Power Flow, Part I: Formulations and Equivalence [PDF]

open access: yes, 2014
This tutorial summarizes recent advances in the convex relaxation of the optimal power flow (OPF) problem, focusing on structural properties rather than algorithms. Part I presents two power flow models, formulates OPF and their relaxations in each model,
Low, Steven H.
core   +4 more sources

Optimizing Real and Reactive Power Dispatch Using a Multi-Objective Approach Combining the ϵ-Constraint Method and Fuzzy Satisfaction

open access: yesEnergies, 2023
Optimal power dispatch is essential to improve the power system’s safety, stability, and optimal operation. The present research proposes a multi-objective optimization methodology to solve the real and reactive power dispatch problem by minimizing the ...
Ricardo Villacrés, Diego Carrión
doaj   +1 more source

Distribution optimal power flow [PDF]

open access: yes2007 IEEE Lausanne Power Tech, 2007
This paper presents a new and efficient methodology for network reconfiguration with optimal power flow based on Benders Decomposition approach. The objective minimizes the power losses, balancing load among the feeders and subject to the constraints: capacity limit of the branches, minimal and maximal limits of the substation or generator, minimum ...
H. M. Khodr, M. A. Matos, J. Pereira
openaire   +3 more sources

Risk-aware Distributed Optimal Power Flow in Coordinated Transmission and Distribution System

open access: yesJournal of Modern Power Systems and Clean Energy, 2021
Active distribution grids cause bi-directional power flow between transmission system (TS) and distribution system (DS), which not only affects the optimal cost but also the secure operation of the power system.
Aamir Nawaz, Hongtao Wang
doaj   +1 more source

Inexact Convex Relaxations for AC Optimal Power Flow: Towards AC Feasibility

open access: yes, 2020
Convex relaxations of AC optimal power flow (AC-OPF) problems have attracted significant interest as in several instances they provably yield the global optimum to the original non-convex problem.
Chatzivasileiadis, Spyros   +2 more
core   +1 more source

Maximum Hosting Capacity Assessment of Distribution Systems With Multitype DERs Using Analytical OPF Method

open access: yesIEEE Access, 2022
Renewable energy is being increasingly integrated into distribution systems worldwide in response to technological, economic, and environmental challenges.
S. Jarjees Ul Hassan   +2 more
doaj   +1 more source

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

open access: yesEnergies, 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   +5 more
doaj   +1 more source

Studi Optimal Power Flow Sistem Kelistrikan 500 KV Jawa Bali Dengan Metode Algoritma Genetika [PDF]

open access: yes, 2013
Salah satu solusi untuk mengurangi kenaikan harga listrik adalah dengan melakukan optimisasi biaya pada proses produksi energi listrik. Optimal Power Flow (OPF) adalah salah satu metode untuk meminimilisasi biaya bahan bakar pembangkit dengan tetap ...
Haryono, T. (T)   +2 more
core  

PowerModels.jl: An Open-Source Framework for Exploring Power Flow Formulations

open access: yes, 2018
In recent years, the power system research community has seen an explosion of novel methods for formulating and solving power network optimization problems.
Bent, Russell   +4 more
core   +1 more source

Linear/Quadratic Programming-Based Optimal Power Flow using Linear Power Flow and Absolute Loss Approximations

open access: yes, 2017
This paper presents novel methods to approximate the nonlinear AC optimal power flow (OPF) into tractable linear/quadratic programming (LP/QP) based OPF problems that can be used for power system planning and operation.
Demiray, Turhan, Fortenbacher, Philipp
core   +1 more source

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