Results 241 to 250 of about 1,259,177 (299)

Control variable adjustment in load flows

IEEE Transactions on Power Systems, 1988
A linear programming type approach is used to adjust all adjustable loadflow variables with respect to specified constraints. The technique is applicable to the Newton-coupled (and -decoupled) as well as the fast-decoupled load flows. The coordinated adjustment of all adjustable variables improves the convergence of the load-flow program and results in
G.A. Maria, A.H. Yuen, J.A. Findlay
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Evaluating load flow capability with thermostically controllable building loads

2015 North American Power Symposium (NAPS), 2015
Through demand side management programs, buildings are increasingly being used to provide respite where generation inadequacies exist. Buildings are commonly dispatched as thermostatically controllable loads by adjusting internal temperature setpoints. Thermal load variations can be attributed to the HVAC equipment and are highly dependent on internal ...
Mohammed Muthalib, Chika Nwankpa
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The flow refueling location problem with load flow control

Omega, 2019
Abstract Battery electric vehicles as well as renewable energy are two key factors that can contribute significantly to sustainable development within the transportation and the energy sector. However, the market introduction of these technologies results in new challenges, especially with regard to the interaction between both sectors.
Barbara Scheiper, Maximilian Schiffer, Grit Walther   +2 more
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Study on load frequency control using redox flow batteries

IEEE Power Engineering Society General Meeting, 2004., 2004
Summary form only given. Rechargeable batteries such as Redox flow, which are not aged by frequent charging and discharging, have a quick response equivalent to SMES and outstanding function during overload. The battery efficiency increases when the cycle period of charging/discharging becomes shorter.
T. Sasaki, T. Kadoya, K. Enomoto
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Flow Control of Extreme Pressure Loads Associated with Flow Separation

Journal of Engineering Mechanics, 2016
AbstractActive flow control is applied at different locations over a surface-mounted prism to reduce extreme pressure coefficient and loads. Different control strategies including blowing, suction, and synthetic jets are evaluated. The full unsteady Navier–Stokes equations are solved to determine the pressure coefficients.
Samah Ben Ayed, Saad A. Ragab, Muhammad R. Hajj   +2 more
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Active Flow Control Devices for Wing Load Alleviation

Journal of Aircraft, 2020
Active flow control has not found wide application in aircraft due to a combination of technical challenges, costs, and small impact on overall aircraft performance.
Khalid Khalil, Salvatore Asaro, André Bauknecht   +2 more
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Control setting of unified power flow controllers through a robust load flow calculation

IEE Proceedings - Generation, Transmission and Distribution, 1999
The unified power flow controller (UPFC) provides a promising means to control power flow in modern power systems. Essentially, the performance depends on proper control setting achievable through a power flow analysis program. The paper presents a reliable method to meet the requirements by developing a Newton–Raphson based load flow calculation ...
W. Fang, H.W. Ngan
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Dynamical model of unified power flow controllers in load-flow analysis

2006 IEEE Power Engineering Society General Meeting, 2006
Based on the novel concept of interpreting the updated voltage solutions at each iteration in the Newton-Raphson (NR) load-flow analysis as dynamic variables, the paper develops a procedure for representing the unified power flow controllers (UPFCs) in the steady-state evaluation.
T.T. Nguyen, null Nguyen VL
openaire   +1 more source