Results 31 to 40 of about 1,271,468 (199)

An Exact Sequential Linear Programming Algorithm for the Optimal Power Flow Problem [PDF]

open access: yesIEEE Transactions on Power Systems, 2021
Despite major advancements in nonlinear programming (NLP) and convex relaxations, most system operators around the world still predominantly use some form of linear programming (LP) approximation of the AC power flow equations.
Sleiman Mhanna, P. Mancarella
semanticscholar   +1 more source

A novel MILP‐Newton approach for power flow analysis

open access: yesIET Generation, Transmission & Distribution, 2021
This paper presents a novel mixed integer linear programming‐Newton approach for solving constrained AC power flow problems, based on a recently proposed linear programing‐Newton method. The linear programming‐Newton method overcomes some deficiencies of
Diego Nunes da Silva   +2 more
doaj   +1 more source

Linear approximations to AC power flow in rectangular coordinates [PDF]

open access: yes2015 53rd Annual Allerton Conference on Communication, Control, and Computing (Allerton), 2015
This paper explores solutions to linearized powerflow equations with bus-voltage phasors represented in rectangular coordinates. The key idea is to solve for complex-valued perturbations around a nominal voltage profile from a set of linear equations that are obtained by neglecting quadratic terms in the original nonlinear power-flow equations.
Dhople, Sairaj V.   +2 more
openaire   +2 more sources

An Optimal Secondary Multi-Bus Voltage and Reactive Power Sharing Control Based on Non-Iterative Decoupled Linearized Power Flow for Islanded Microgrids

open access: yesIEEE Access, 2021
The subject of optimal secondary control of power-electronic-interfaced distributed energy resources (DERs) in droop-controlled microgrids has garnered significant research attention in recent years.
Yi Chyn Cassandra Wong   +5 more
doaj   +1 more source

An online decision-making method for the overload preventive control of transmission equipment based on the control objects relaxation

open access: yes电力工程技术, 2023
The preventive control strategy can be solved quickly and effectively through the linear programming model based on active power sensitivity. However, the active power sensitivity obtained by the DC power flow method ignores the influence of voltage and ...
WANG Ye   +5 more
doaj   +1 more source

Industrial DC Microgrid Analysis Through Linear Power Flow

open access: yes2022 IEEE International Conference on Environment and Electrical Engineering and 2022 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe), 2022
The energy shift towards renewable energies has brought an increased interest into DC microgrids as a decentralized option with increased efficiency and easier control that can facilitate this transition. Many efforts have been made into the optimization and planning of DC microgrids. In this paper, the authors propose an approach in which a planned DC
Vasquez Mayen, Eduardo Rene   +2 more
openaire   +2 more sources

Robust linear model for multi‐period AC optimal power flow

open access: yesIET Generation, Transmission & Distribution, 2020
In the near future power systems, efficient management of uncertainties with considering the system constraints without any simplification will be a challenge for system operators.
Houman Heidarabadi   +2 more
doaj   +1 more source

Optimal power flow based on successive linear approximation of power flow equations

open access: yesIET Generation, Transmission & Distribution, 2016
In this study, the authors introduce a new solution to the alternating current optimal power flow problem based on successive linear approximation of power flow equations. The polar coordination of the power flow equations is used to take advantage of the quasi‐linear P–
Zhifang Yang   +4 more
openaire   +1 more source

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

open access: yesIEEE 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   +3 more
doaj   +1 more source

Non Linear Modelling and Control of Unified Power Flow Controller [PDF]

open access: yesE3S Web of Conferences
Unified Power Flow Controller is modeled as a non linear system in order to apply a non linear control technique for the improvement of power flow in a Single Machine Infinite Bus system.
Ravikumar N.V.A.   +2 more
doaj   +1 more source

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