Results 11 to 20 of about 10,981,728 (293)
Non Linear Modelling and Control of Unified Power Flow Controller [PDF]
E3S Web of ConferencesUnified 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 +4 more sources
Optimal linear power flow for droop controlled islanded microgrid
International Journal of Electrical Power & Energy SystemsThe time of optimal planning and operation of islanded microgrid (IMG) can be minimized by modeling it as non-iterative mixed integer linear problem (MILP).
Ankit Uniyal +2 more
doaj +2 more sources
A novel Q-limit guided continuation power flow method for voltage stability analysis [PDF]
, 2008 This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.Voltage security assessment is becoming a more and more important issue due to the fact that electrical power systems are more prone to voltage instability ...
Zhu, Pengcheng
core +6 more sources
Linear optimal power flow using cycle flows [PDF]
Electric Power Systems Research, 2018 11 pages, 5 figures; version 2 includes results for generation capacity optimization; version 3 is the final accepted journal ...
Jonas Hörsch +3 more
openaire +3 more sources
A Linear-Programming Approximation of AC Power Flows [PDF]
INFORMS Journal on Computing, 2014 Linear active-power-only power flow approximations are pervasive in the planning and control of power systems. However, AC power systems are governed by a system of nonlinear nonconvex power flow equations. Existing linear approximations fail to capture key power flow variables, including reactive power and voltage magnitudes, both of which are ...
Coffrin, C, Van Hentenryck, Pascal
openaire +6 more sources
Linear approximations to AC power flow in rectangular coordinates [PDF]
2015 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.
Sairaj V. Dhople +2 more
openaire +4 more sources
Data-driven Power Flow Method Based on Exact Linear Regression Equations
Journal of Modern Power Systems and Clean Energy, 2022 Power flow (PF) is one of the most important calculations in power systems. The widely-used PF methods are the Newton-Raphson PF (NRPF) method and the fast-decoupled PF (FDPF) method.
Yanbo Chen, Chao Wu, Junjian Qi
doaj +1 more source
An Extended DC Power Flow Model Considering Voltage Magnitude
Journal of Modern Power Systems and Clean Energy, 2021 A quasi-linear relationship between voltage angles and voltage magnitudes in power flow calculation is presented. An accurate estimation of voltage magnitudes can be provided by the quasi-linear relationship when voltage angles are derived by classical ...
Dundun Liu +4 more
doaj +1 more source
A Linear Programming Method Based Optimal Power Flow Problem for Iraqi Extra High Voltage Grid (EHV)
Journal of Engineering, 2023 The objective of an Optimal Power Flow (OPF) algorithm is to find steady state operation point which minimizes generation cost, loss etc. while maintaining an acceptable system performance in terms of limits on generators real and reactive powers, line ...
Firas Mohammed Tuaimah +1 more
doaj +1 more source
Numerical Comparisons of Linear Power Flow Approximations: Optimality, Feasibility, and Computation Time [PDF]
, 2022 Linear approximations of the AC power flow equations are of great significance for the computational efficiency of large-scale optimal power flow (OPF) problems.
Kar, Soummya +5 more
core +1 more source