Results 1 to 10 of about 901 (137)
Non-invasive cardiac power measurements in decompensated heart failure in elderly adults: A prospective proof-of-concept study. [PDF]
Physiol RepAbstract In this proof‐of‐concept study, we evaluated the feasibility of non‐invasive estimation of cardiac power metrics—total power, steady power, oscillatory power, and oscillatory power fraction—and compared the prognostic and diagnostic value with established echocardiographic metrics. We prospectively included 29 patients (mean age 76 ± 13 years,
Yttervoll I +5 more
europepmc +2 more sources
A hybrid deep learning approach to solve optimal power flow problem in hybrid renewable energy systems [PDF]
Scientific ReportsThe reliable operation of power systems while integrating renewable energy systems depends on Optimal Power Flow (OPF). Power systems meet the operational demands by efficiently managing the OPF.
G. Gurumoorthi +3 more
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Optimal Power Flow in Distribution Network: A Review on Problem Formulation and Optimization Methods
Energies, 2023 Distributed generators (DGs) have a high penetration rate in distribution networks (DNs). Understanding their impact on a DN is essential for achieving optimal power flow (OPF).
Cheng Yang +7 more
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Renewable Energy Capacity Assessment in Power System Based on Linearized OPF
Zhongguo dianli, 2022 With the deepening adjustment of energy structure, the penetration of renewable energy in power system is gradually increased. The fluctuation and randomness of renewable energy output have brought new challenges to the power system operation.
Yu DONG, Cun DONG, Ruoying YU, Jie DING
doaj +1 more source
Security Constrained Reactive Power Scheduling Considering N-1 Contingency of Transmission Lines [PDF]
Journal of Operation and Automation in Power Engineering, 2022 This paper presents a methodology for reactive power scheduling (RPS) of power system in the form of AC optimal power flow (AC-OPF) problem. The objective function is minimization of system total active power losses. The OPF optimally determines reactive
E. Limouzadeh, A. Rabiee
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IEEE Access, 2022 Preventive control actions for enhancing the transient stability of power system ensures the system stability under a given contingency. Generation rescheduling through stability constrained optimal power flow (TSC-OPF) is one of the widely adopted ...
Sreenadh Batchu, Kiran Teeparthi
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Design and tests of reinforcement-learning-based optimal power flow solution generator
Energy Reports, 2022 Optimal power flow (OPF) is a very traditional problem in the research field of power systems. In this paper, an OPF solution generator based on reinforcement learning (RL) is proposed. The solution process of OPF is modeled as a one-step Markov Decision
Hongyue Zhen +7 more
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Energies, 2023 Since the power grid grows and the necessity for higher system efficiency is due to the increasing number of renewable energy penetrations, power system operators need a fast and efficient method of operating the power system. One of the main problems in
Muhammad Bachtiar Nappu +2 more
doaj +1 more source
IEEE Access, 2020 Considering the random and fuzzy nature of wind speed, this paper proposes a multi-objective random-fuzzy chance-constrained programming optimal power flow (OPF) for wind integrated power systems.
Rui Ma +4 more
doaj +1 more source
Energies, 2021 Renewable energy sources including wind farms and solar sites, have been rapidly integrated within power systems for economic and environmental reasons.
Zongjie Wang, C. Lindsay Anderson
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