Results 21 to 30 of about 28,607 (253)
Redution of Overvoltages under Connection on a High-Voltage Cable Line Due to Optimal Controlled Switching [PDF]
Problems of the Regional Energetics, 2023 The purpose of the work is to develop a mathematical model of a cable transmission line, which allows modeling and choosing the optimal conditions for controlled switching to limit overvoltage at the development and design stage.
Lobodzinskiy V. +4 more
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Joint TS Beamforming and Hybrid TS-PS Receiving Design for SWIPT Systems
IEEE Access, 2021 Simultaneously wireless information and power transfer technology enables information and energy to be transmitted over the same radio frequency (RF) signal.
Shiqi Wang, Lin Ma, Wei Wu
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Alternative Mathematical Models for the Optimal Transmission Switching Problem
IEEE Systems Journal, 2021 In this article, the optimal transmission switching (OTS) problem is solved in order to optimize the operation cost of an electrical power system. This is accomplished by disconnecting some transmission lines, which enables a change to the profile of the power flow distribution in the system, allowing for increased generation at the buses with lower ...
Moises Flores +2 more
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Virtual-Voltage Partition-Based Approach to Optimal Transmission Switching [PDF]
IEEE Transactions on Control Systems Technology, 2021 This paper deals with optimal transmission switching (OTS) problems involving discrete binary decisions about network topology and non-convex power flow constraints. We adopt a semidefinite programming formulation for the OPF problem which, however, remains nonconvex due to the presence of discrete variables and bilinear products between the decision ...
Chin-Yao Chang +2 more
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A genetic algorithm for AC optimal transmission switching
Proceedings of the Genetic and Evolutionary Computation Conference, 2021 Optimal transmission switching (OTS) is a new practice in power systems and can improve the economics of electric power systems integrated with renewable resources such as wind. In OTS modeling binary decision variables are added to the optimal power flow (OPF) problem to represent on and off switching status of lines.
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Energies, 2019 Dead-time effect has become an apparent issue in high-switching-frequency high-power dual active bridge (DAB) DC-DC converter. This paper gives a detailed analysis of phase-shift errors effect caused by dead time, including output voltage offset, soft ...
Chaochao Song +4 more
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Optimal Transmission Line Switching Under Geomagnetic Disturbances [PDF]
IEEE Transactions on Power Systems, 2018 In recent years, there have been increasing concerns about how geomagnetic disturbances (GMDs) impact electrical power systems. Geomagnetically-induced currents (GICs) can saturate transformers, induce hot spot heating and increase reactive power losses.
Mowen Lu +5 more
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Learning-assisted optimization for transmission switching
TOPAbstractThe design of new strategies that exploit methods from machine learning to facilitate the resolution of challenging and large-scale mathematical optimization problems has recently become an avenue of prolific and promising research. In this paper, we propose a novel learning procedure to assist in the solution of a well-known computationally ...
Salvador Pineda +2 more
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Energies, 2021 In this research, an alternative methodology is proposed for the location of Static VAR Compensators (SVC) in power systems, considering the reconfiguration of reactive power flows through the optimal switching of the transmission stage, which resembles ...
Diego Carrión +3 more
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An AC OPF-based heuristic algorithm for optimal transmission switching [PDF]
2014 Power Systems Computation Conference, 2014 This paper focuses on reducing generators dispatch cost by means of transmission line switching. The problem is formulated as a mixed-integer nonlinear program (MINLP) optimal power flow (OPF). A scalable heuristic algorithm is proposed to break-down the complexity of the problem due to the huge combinatorial space.
Florin Capitanescu, Louis Wehenkel
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