Results 11 to 20 of about 2,651 (265)

Semi-explicit multilinear modeling of a PQ open-loop controlled PV inverter in αβ-frame

open access: yesEnergy Reports, 2023
This paper introduces semi-explicit multilinear modeling to ac power systems, including voltage source converters. Firstly, the novel semi-explicit multilinear modeling class is explained.
Christoph Kaufmann   +3 more
doaj   +1 more source

Optimization-Based Formulations for Short-Circuit Studies with Inverter-Interfaced Generation in PowerModelsProtection.jl

open access: yesEnergies, 2021
Protecting inverter-interfaced microgrids is challenging as conventional time-overcurrent protection becomes unusable due to the lack of fault current. There is a great need for novel protective relaying methods that enable the application of protection ...
Arthur K. Barnes   +3 more
doaj   +1 more source

Impedance Modeling and Stability Analysis of the IMAF-PLL-Based NPC Three-Level LCL Grid-Connected Inverter

open access: yesIEEE Access, 2020
The phase-locked loop of grid-connected inverters affects their output impedance characteristics and stability. Based on the NPC, three-level LCL grid-connected inverter, this article first analyzes the frequency characteristics of the improved moving ...
Wei Luo, Dafang Wei, Jianguo Jiang
doaj   +1 more source

Evaluating Distributed PV Curtailment Using Quasi-Static Time-Series Simulations

open access: yesIEEE Open Access Journal of Power and Energy, 2021
By strategically curtailing active power and providing reactive power support, photovoltaic (PV) systems with advanced inverters can mitigate voltage and thermal violations in distribution networks.
Joseph A. Azzolini   +3 more
doaj   +1 more source

Electric Vehicle Inverter Electro-Thermal Models Oriented to Simulation Speed and Accuracy Multi-Objective Targets

open access: yesEnergies, 2019
With the increasing demand for electric vehicles, the requirements of the market are changing ever faster. Therefore, there is a need to improve the electric car’s design time, where simulations could be an appropriate tool for this task.
June Urkizu   +7 more
doaj   +1 more source

Modeling inverter losses for circuit simulation [PDF]

open access: yes2004 IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551), 2004
Transformer-like inverter models can represent a very good alternative to common switch-diode models for simulation, reducing convergence problems and/or calculation time. They may also provide easier insight into the converter operation and power loss effects, at least from the point of view of the applicants, aiding for design and teaching purposes ...
FRATTA, Antonino, SCAPINO, Federico
openaire   +2 more sources

Multiphase Traction Inverters: State-of-the-Art Review and Future Trends

open access: yesIEEE Access, 2022
Multiphase inverters (MPIs) continue to increase in popularity owing to their compelling features that include enhanced fault-tolerance capability, improved per-phase power handling, and reduced dc-bus capacitor sizing.
Wesam Taha   +3 more
doaj   +1 more source

Hybrid Models with Deep and Invertible Features

open access: yesCoRR, 2019
We propose a neural hybrid model consisting of a linear model defined on a set of features computed by a deep, invertible transformation (i.e. a normalizing flow). An attractive property of our model is that both p(features), the density of the features, and p(targets | features), the predictive distribution, can be computed exactly in a single feed ...
Eric, N   +4 more
openaire   +4 more sources

Radiation study on the parallel topology of SiC MOSFET and Si IGBT inverter

open access: yesEnergy Reports, 2023
The electromagnetic radiation interference mechanism from multiple noise sources on the parallel topology of SiC MOSFET and Si IGBT Inverter is blurred, which will seriously affect the high reliability application of the structure. In order to solve this
Yuxing Dai   +7 more
doaj   +1 more source

Reduced-Order Thermal Modeling for Photovoltaic Inverters Considering Mission Profile Dynamics

open access: yesIEEE Open Journal of Power Electronics, 2020
Power devices are among the reliability-critical components in the Photovoltaic (PV) inverter, whose failures are normally related to the thermal stress. Therefore, thermal modeling is required for estimating the thermal stress of the power devices under
Ariya Sangwongwanich   +2 more
doaj   +1 more source

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