Results 21 to 30 of about 7,194 (268)

Energy Generation and Electrical Machine Control Parameters of DFIG in Wind Turbine [PDF]

Engineering and Technology Journal, 2016
In electrical power generation system and electrical machine, wind turbine technology has rapid developments, and wind energy become increasingly competitive.
Wamidh Dhyaa Eldeen Bahaa Eldeen
doaj   +1 more source

Graph Invertibility

Graphs and Combinatorics, 2013
Extending the work of Godsil and others, we investigate the notion of the inverse of a graph (specifically, of bipartite graphs with a unique perfect matching). We provide a concise necessary and sufficient condition for the invertibility of such graphs and generalize the notion of invertibility to multigraphs.
Cam McLeman, Erin McNicholas
openaire   +3 more sources

Multiple-Output ZVS Resonant Inverter Architecture for Flexible Induction Heating Appliances

IEEE Access, 2019
Flexible cooking surfaces have changed the domestic induction heating product paradigm enabling the use of a wider range of cookware materials, shapes, and positions.
Hector Sarnago, Pablo Guillen, Jose M. Burdio, Oscar Lucia   +3 more
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 Remark on the Invertibility of Semi-invertible Cocycles [PDF]

Journal of Dynamical and Control Systems, 2018
Some corrections to the previous version were ...
openaire   +3 more sources

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

Low-Speed Transient and Steady-State Performance Analysis of IPMSM for Nonlinear Speed Regulator with Effective Compensation Scheme

Energies, 2021
The speed response of the interior permanent magnet synchronous motor (IPMSM) drive at low speeds was analyzed. To eliminate the effect of external disturbance or parameter uncertainty, a nonlinear speed control loop was designed based on the sliding ...
Muhammad Usama, Jaehong Kim
doaj   +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

Harmonic Stability Assessment of Commercially Available Single-Phase Photovoltaic Inverters Considering Operating-Point Dependencies

Solar, 2023
The growth of renewables in the energy sector, e.g., in public low-voltage networks, leads to an increasing share of installed power electronic devices, e.g., inverters for photovoltaic applications. To rely on these devices, suitable analyses have to be
Elias Kaufhold, Jan Meyer, Johanna Myrzik, Peter Schegner   +3 more
doaj   +1 more source

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