Results 271 to 280 of about 22,499 (318)

Novel regulated DC/DC and DC/AC power converters

International Journal of Renewable Energy Technology, 2009
Power sources with a desired voltage profiles, are required in many applications including renewable energy. Although in most cases, a sinusoidal waveform of specified amplitude and frequency is of interest, other types of voltage profiles, such as square, trapezoidal, triangular, etc., may also be required in amplifiers, shakers, mechatronics, etc ...
Suvarun Dalapati, Chandan Chakraborty
openaire   +1 more source

DC-AC photonic power converters with liquid crystal optical modulators

Optics Letters
In this Letter, we propose a power-switch-free (PSF) DC–AC photonic power converter (PPC) that utilizes liquid-crystal optical modulators (LCOMs) to commutate optical flux, thereby eliminating the need for power switches and avoiding switching-induced electromagnetic interference (EMI).
Guidong Zhang, Shiye Li, Zaoming Huang, Samson S. Yu, Lihao Wu, Chi K. Tse   +5 more
openaire   +2 more sources

Predictive Control Strategy for DC/AC Converters Based on Direct Power Control

IEEE Transactions on Industrial Electronics, 2007
This paper proposes predictive direct power control (P-DPC), a new control approach where the well-known direct power control is combined with predictive selection of a voltage-vectors' sequence, obtaining both high transient dynamics and a constant-switching frequency.
Sergio Aurtenechea Larrinaga, Miguel Ángel Rodriguez Vidal, Estanis Oyarbide, José Ramón Torrealday Apraiz   +3 more
openaire   +1 more source

Parallel DC/AC Converters under Connection/Disconnection of Power Modules

2012 VI Andean Region International Conference, 2012
Paralleling converters is normally employed to increase power capacity in different applications, such as autonomous micro grid systems and unininterruptible power supplies. These systems share the current between the different converters, but it must be in an equalized manner, no matter different type of loads or conditions.
N. Vazquez, C. Gallegos, C. Hernandez, E. Rodriguez, I. Cervantes   +4 more
openaire   +1 more source

Design of power converters with embedded energy storage for hybrid DC-AC application

2023
La creciente inclusión de energías renovables en los sistemas eléctricos está provocando una revolución en la estructura de las redes eléctricas modernas. En este contexto, la presente tesis investiga el diseño de conversores de potencia con capacidades extendidas debido a la incorporación de almacenamiento de energía dentro de las topologías.
openaire   +4 more sources

VHDL design for teaching DC/AC converters in a power electronics course

2016 Conference on Design of Circuits and Integrated Systems (DCIS), 2016
This work presents the FPGA design of a DC/AC pulse width modulated converter for teaching purposes. The design allows to change in real time the PWM modulation scheme, the amplitude and frequency of the desired first harmonic, as well as the harmonic spectrum depending on the requirements of the application.
Edel Diaz LLerena, M. Carmen Perez Rubio, Jesus Urena Urena   +2 more
openaire   +1 more source

Hysteresis Regulator With Clocked Commutation in DC/AC Power Converter System

2006 12th International Power Electronics and Motion Control Conference, 2006
research of hysteresis regulators with clocked commutation in dc/ac converters is presented. Method of hysteresis calculation is offered to improve regulation accuracy of hysteresis regulators with clocked commutation in dc/ac voltage convectors.
Kolokolov Yury, Koschinsky Stanislav, Tey Dmitry, Zaytoon Janan, Hamzaoui Abdelaziz   +4 more
openaire   +1 more source

An Improved DC-AC Power Converter

2023 IEEE AFRICON, 2023
Candidus U. Eya, Emenike C. Ejiogu, Gerald C. Diyoke, Nnaemeka G. Ajah, Oluchi C. Ugbe, Chikani Nonso I   +5 more
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Soft switched capacitively coupled DC-AC converter for high power

Conference Record of the 1993 IEEE Industry Applications Conference Twenty-Eighth IAS Annual Meeting, 2002
A capacitively coupled DC-AC power converter which is capable of zero current soft switching is presented. A form of amplitude modulation is introduced to provide a sinusoidal output waveform. Due to its favorable current stresses on the switches, this converter is suitable for high current high power inductive load applications.
M. Ehsani, T.S. Wu
openaire   +1 more source

Linear Control Approaches for DC-AC and AC-DC Power Converters

2013
This chapter addresses linear techniques for controlling the average (low-frequency) behavior of power electronic converters that include not only DC but also AC power stages. Without being exhaustive, the chapter focuses on the most-used control methods applied to somewhat popular single-phase and three-phase PWM- or full-wave-operated power ...
Seddik Bacha, Iulian Munteanu, Antoneta Iuliana Bratcu   +2 more
openaire   +1 more source