Results 21 to 30 of about 277,821 (256)

Health-Focused Optimal Power Flow [PDF]

open access: yes2021 IEEE Power & Energy Society Innovative Smart Grid Technologies Conference (ISGT), 2021
In this paper, we propose a novel Health-Focused Optimal Power Flow (HF-OPF) to take into account the equipment health in operational and physical constraints. The health condition index is estimated based on the possible fault characteristics for generators and batteries.
Logesh Kumar   +5 more
openaire   +2 more sources

A Survey of Real-Time Optimal Power Flow

open access: yesEnergies, 2018
There has been a strong increase of penetration of renewable energies into power systems. However, the renewables pose new challenges for the operation of the networks.
Erfan Mohagheghi   +3 more
doaj   +1 more source

Real-Time Optimal Power Flow

open access: yesIEEE Transactions on Smart Grid, 2017
Future power networks are expected to incorporate a large number of distributed energy resources, which introduce randomness and fluctuations as well as fast control capabilities. But traditional optimal power flow methods are only appropriate for applications that operate on a slow timescale.
Yujie Tang 0002   +2 more
openaire   +2 more sources

Decomposed Iterative Optimal Power Flow with Automatic Regionalization

open access: yesEnergies, 2020
The optimal power flow (OPF) problem plays an important role in power system operation and control. The problem is nonconvex and NP-hard, hence global optimality is not guaranteed and the complexity grows exponentially with the size of the system ...
Xinhu Zheng   +3 more
doaj   +1 more source

A Distributed Algorithm for Controlling Continuous and Discrete Variables in a Radial Distribution Grid

open access: yesIEEE Access, 2023
The increased integration of distributed energy resources (DERs) in the distribution network with intermittent generation profiles will likely make voltage regulation a difficult task.
Jonatan Ralf Axel Klemets   +1 more
doaj   +1 more source

Pyramidal approximation for power flow and optimal power flow [PDF]

open access: yesIET Generation, Transmission & Distribution, 2020
Power flow equations (PFEs) are the fundamental of power flow (PF) calculations and optimal PF (OPF) for power system analysis, but existing PFEs suffer from the trade‐off among various requirements in practice. This study presents a novel pyramidal approximation (PA) for PF and OPF.
Bo Zhou   +5 more
openaire   +2 more sources

Preventive Security-Constrained Optimal Power Flow with Probabilistic Guarantees

open access: yesEnergies, 2020
The traditional security-constrained optimal power flow (SCOPF) model under the classical N-1 criterion is implemented in the power industry to ensure the secure operation of a power system.
Hang Li   +3 more
doaj   +1 more source

Improved PSO with Disturbance Term for Solving ORPD Problem in Power Systems

open access: yesAdvances in Electrical and Electronic Engineering, 2022
The essential purpose of an energy system is to provide electricity to its loads effectively and economically, as well as safely and reliably. Therefore, the solutions to the problems of Optimal Power Flow (OPF) and Optimal Reactive Power Dispatch (ORPD)
Mohamed Mezaache   +4 more
doaj   +1 more source

Linear AC Three-Phase OPF Model for Active Distribution Networks with Unbalanced ZIP Loads

open access: yesBrazilian Archives of Biology and Technology, 2022
: Although nonlinear Alternating Current (AC) Optimal Power Flow (OPF) may provide more accurate results compared to linearized OPF models, many ACOPF problems are complex and may require high, sometimes infeasible, computational time.
Rafael Silva Pinto   +3 more
doaj   +1 more source

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

Home - About - Disclaimer - Privacy