Results 71 to 80 of about 1,271,468 (199)
Alexandria Engineering Journal, 2015 The work presented in this paper is focused on deductive group-theoretic transformations to develop the similarity solution of steady, laminar, incompressible quasi three dimensional boundary layer flow governing power law fluid.
Nita Jain, M.G. Timol
doaj +1 more source
IEEE Transactions on Power Systems, 2019 HVDC is becoming an increasingly important part of the present day transmission systems. Accurate models of active and reactive power control capabilities of HVDC converter stations are required to analyze the operation of power systems consisting of ac ...
H. Ergun +3 more
semanticscholar +1 more source
IEEE AccessThe unified power flow controller (UPFC) based on the modular multilevel converter (MMC) requires stability and fast power-flow-regulation capabilities, whereas the linear active disturbance rejection control (LADRC) strategy precisely has the ...
Ke Zhang +5 more
doaj +1 more source
Multi-Objective Optimal Power Flow of Integrated Transmission and Distribution Network Considering Node Carbon Emission Intensity [PDF]
Dianli jianshe[Objective] Under the background of the steady progress of the "dual carbon" plan and the widespread access of distributed energy， the calculation accuracy and efficiency of the original equivalent model are challenged due to the changes in the power ...
ZHANG Xianglong, YUAN Zhaoxiang, DONG Shufeng, LIU Ying, XIAO Zhihong, TIAN Yuzhou
doaj +1 more source
Development of a Plate Linear Ultrasonic Motor Using the Power Flow Method
MicromachinesLinear ultrasonic motors can output large thrust stably in a narrow space. In this paper, a plate linear ultrasonic motor is studied. Firstly, the configuration and operating principle of the Π-type linear ultrasonic motor is illustrated.
Yue Jian +4 more
doaj +1 more source
A linear programming-based framework of interval power flow analysis for distribution systems
International Journal of Electrical Power & Energy SystemsThe interval power flow (IPF) method is widely employed to address the uncertainties of renewable energy sources (RESs) in power systems. However, limited research exists on the application of mathematical optimization-based approaches to compute IPF ...
Xuehan Zhang +3 more
doaj +1 more source
Optimally Linearizing Power Flow Equations for Improved Power System Dispatch
Managing power grids with the increasing presence of variable renewable energy-based (distributed) generation involves solving high-dimensional optimization tasks at short intervals. Linearizing the AC power flow (PF) constraints is a standard practice to ease the computational burden at the cost of hopefully acceptable inaccuracies.
Chen, Yuhao, Singh, Manish K.
openaire +2 more sources
Linear–based Newton–Raphson Approximation for Power Flow Solution in DC Power Grids
2018 IEEE 9th Power, Instrumentation and Measurement Meeting (EPIM), 2018 This paper presents a linear–based Newton method for load flow solution in DC power grids. This approximation is based on the classical Taylor’s series expansion combined to the open–circuit voltage obtained when all the constant power load points are disconnected.
Gil-González, Walter +2 more
openaire +2 more sources
A Three-Phase Unbalanced Linear Power Flow Solution With PV Bus and ZIP Load
IEEE Access, 2019 With the penetration of distributed generators (DGs) into active distribution network (ADN), the voltage controlled buses (PV buses) are becoming more common, to maintain a normal voltage level in the distribution network.
Hongwei Li +4 more
doaj +1 more source
Autonomous Intelligent SystemsWith the growing penetration of renewable energy, the impact of renewable uncertainties on power system secure operation is of increasing concern. Based on a recently developed linear power flow model, we formulate a chance-constrained optimal power flow
Yaodan Cui +5 more
doaj +1 more source