Results 31 to 40 of about 3,932,154 (295)

Multiphysics Numerical Simulation of the Transient Forming Mechanism of Magnetic Pulse Welding

open access: yesMetals, 2022
Magnetic pulse welding (MPW) is widely used in the connection of dissimilar metals. The welding process involves the coupling of the electromagnetic field and structural field, which is a high-energy transient forming process.
Yan Li   +4 more
doaj   +1 more source

Electromagnetic transient simulation with state variable representation of HVDC conversion [PDF]

open access: yes, 1992
This thesis describes an accurate and efficient method for transient simulation of HVdc/ac power systems. An overview of existing transient simulation methods for power systems, with special emphasis on HVdc converter plant, is made, and their main ...
Mohamed Zavahir, J.
core   +1 more source

Electromagnetic transient characteristics and overvoltage suppression strategy of renewable energy-oriented power system connected by gas-insulated transmission lines

open access: yesFrontiers in Energy Research, 2022
New energy systems, such as wind power and photovoltaic and distributed power supply, in the power generation and grid-connected transmission system basically will use stronger insulation design, higher operational safety, and smaller footprint GIL ...
Guang Yang   +4 more
doaj   +1 more source

On the Numerical Accuracy of Electromagnetic Transient Simulation With Power Electronics [PDF]

open access: yesIEEE Transactions on Power Delivery, 2018
This paper investigates the numerical accuracy of currently employed methods for electromagnetic transient simulation with power electronics. Existing tools often employ the second-order accurate trapezoidal method for numerical integration. However, solution techniques employed to facilitate ideal power-electronic switches do not always preserve this ...
Tant, Jeroen, Driesen, Johan
openaire   +2 more sources

Improved adaptive regularization for simulated annealing inversion of Transient Electromagnetic

open access: yesScientific Reports, 2023
Abstract Geophysical inversion usually involves ill-posed problems. Regularization is the most commonly used method to mitigate the ill-posedness faced in geophysical inversions. Adaptive regularization methods have been more widely used in linearized inversion than in stochastic inversion methods.
Xiang Tang   +9 more
openaire   +3 more sources

DPsim—Advancements in Power Electronics Modelling Using Shifted Frequency Analysis and in Real-Time Simulation Capability by Parallelization

open access: yesEnergies, 2020
Real-time simulation is an increasingly popular tool for product development and research in power systems. However, commercial simulators are still quite exclusive due to their costs and they face problems in bridging the gap between two common types of
Markus Mirz   +2 more
doaj   +1 more source

A waveform relaxation solver for transient simulation of large-scale nonlinearly loaded shielding structures

open access: yes, 2022
This article introduces an algorithm for transient simulation of electromagnetic structures loaded by lumped nonlinear devices. The reference application is energy-selective shielding, which adopts clipping devices uniformly spread along shield apertures
Wendt, Torben   +4 more
core   +1 more source

Hybrid electromechanical-electromagnetic simulation to SVC controller based on ADPSS platform

open access: yesJournal of Energy in Southern Africa, 2017
To test the dynamic performance and damping features of a static var compensator (SVC) controller accurately in large-scale interconnected AC/DC hybrid power systems, it is of vital significance to build the detailed electromagnetic transient model ...
Lin Xu, Yong-Hong Tang, Wei Pu, Yang Han
doaj   +1 more source

Optimizing Task Orchestration for Distributed Real-Time Electromagnetic Transient Simulation

open access: yesIEEE Access
Transient simulation in power engineering is crucial as it models the dynamic behavior of power systems during sudden events like faults or short circuits. Electromagnetic transient simulations involve multiple coordinated tasks.
Qi Guo   +8 more
doaj   +1 more source

A relaxation scheme to combine phasor-mode and electromagnetic transients simulations [PDF]

open access: yes2014 Power Systems Computation Conference, 2014
This paper deals with a new scheme for coupling phasor-mode and electromagnetic transients simulations. In each simulation, an iteratively updated linear equivalent is used to represent the effect of the subsystem treated by the other simulation. Time interpolation and phasor extraction methods adapted to this scheme are presented and compared to ...
Plumier, Frédéric   +3 more
openaire   +2 more sources

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