Results 31 to 40 of about 83,711 (300)

Fast Quasi-Static Time-Series Simulation for Accurate PV Inverter Semiconductor Fatigue Analysis with a Long-Term Solar Profile

Energies, 2022
Power system simulations with long-term data typically have large time steps, varying from one second to a few minutes. However, for PV inverter semiconductors in grid-connected applications, the minimum thermal stress cycle occurs over the fundamental ...
Yunting Liu, Leon M. Tolbert, Paychuda Kritprajun, Jiaojiao Dong, Lin Zhu, Thomas Ben Ollis, Kevin P. Schneider, Kumaraguru Prabakar   +7 more
doaj   +1 more source

Performance tradeoffs of dynamically controlled grid-connected inverters in low inertia power systems

, 2017
Implementing frequency response using grid-connected inverters is one of the popular proposed alternatives to mitigate the dynamic degradation experienced in low inertia power systems.
Jiang, Yan, Mallada, Enrique, Pates, Richard   +2 more
core   +1 more source

Common-Mode Impedance Stabilizing Device Applied to the Output of Railroad Traction Inverters in the Evaluation of Conductive Emissions

IEEE Access
We present a new device called a common-mode impedance stabilizing device (CMISD), which is applied to the output of inverters installed in railroad vehicles.
Satoru Hatsukade, Keiji Wada
doaj   +1 more source

A Low-Power Setup Proposal for Power Transformer Loading Tests

Energies, 2019
A setup for testing transformers under load through low power converter is presented in this paper. This setup is used for testing power transformers as it allows to verify their performance under operating conditions regarding aspects such as heating ...
Thiago Galvão, Domingos Simonetti
doaj   +1 more source

A Review of Islanding Detection Techniques for Inverter-Based Distributed Generation

Engineering Proceedings, 2023
The classical problem of islanding detection in distributed generation falls into the commonly used categories known as passive, active, and hybrid techniques. These approaches vary in terms of their accuracy, security, and dependability.
Muhammad Waleed Jalil, Wania Ishtiaque, Adeel Arif   +2 more
doaj   +1 more source

Optimum SHE for cascaded H-bridge multilevel inverters using: NR-GA-PSO, comparative study [PDF]

, 2015
Selective Harmonic Elimination (SHE) is very widely applied technique in the control of multilevel inverters that can be used to eliminate the low order dominant harmonics.
Alamri, B, Darwish, M, Sallama, A
core   +1 more source

New Auxiliary Vector Synthesis for Expanding Linear Modulation Range With the Ability to Eliminate CMV Spikes in the SVM Three-Phase Inverters

IEEE Access
Some strategies are used to reduce the high output common-mode voltage (CMV) in three-phase inverters with the space-vector modulation (SVM). However, these reduced CMV (RCMV) strategies may still lead to high spikes in some cases.
Jin Huang, Kaicheng Li
doaj   +1 more source

Suppression of line voltage related distortion in current controlled grid connected inverters [PDF]

, 2005
The influence of selected control strategies on the level of low-order current harmonic distortion generated by an inverter connected to a distorted grid is investigated through a combination of theoretical and experimental studies.
Abeyasekera, T., Armstrong, M., Atkinson, D.J., Johnson, C.M.   +3 more
core   +2 more sources

The Effect of Inverter Failures on the Return on Investment of Solar Photovoltaic Systems

IEEE Access, 2017
Return on investment (ROI) analyses of solar photovoltaic (PV) systems used for residential usage have typically shown that at least 10 to 12 years is needed to break even, with this amount varying based on tax credits and reliability.
Tyler J. Formica, Hassan Abbas Khan, Michael G. Pecht   +2 more
doaj   +1 more source

Secondary Frequency and Voltage Control of Islanded Microgrids via Distributed Averaging [PDF]

, 2015
In this work we present new distributed controllers for secondary frequency and voltage control in islanded microgrids. Inspired by techniques from cooperative control, the proposed controllers use localized information and nearest-neighbor communication
Bullo, Francesco, Dorfler, Florian, Guerrero, Josep M., Shafiee, Qobad, Simpson-Porco, John W., Vasquez, Juan C.   +5 more
core   +2 more sources