Results 221 to 230 of about 2,798 (269)

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
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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
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Stabilized Power AC-DC-AC Converter using polygon transformer

RE&PQJ
Static power converters are used for many applications, like   frequency   converters   for   motors,   uninterruptible   power   supplies  (UPS’s),  general  power  supplies.  This  paper  analyses  the performance of high power static 400Hz supply system used in  aircraft  ground  power  units.
null Dr. Mona F. Moussa, null Eng. Nermeen Biomy, null Prof. Yasser G. Dessouky   +2 more
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PSO optimal tracking control for a DC-AC power converter

2014 World Automation Congress (WAC), 2014
This contribution presents an infinite-horizon optimal tracking controller for nonlinear systems based on the state-dependent Riccati equation approach. The synthesized optimal control law comes from solving the Hamilton-Jacobi-Bellman equation for state-dependent coefficient factorized nonlinear systems.
Guillermo C. Zuniga, Fernando Ornelas-Tellez, Edgar N. Sanchez   +2 more
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AC/DC/AC converter in a small hydroelectric power plant

Bulletin of the Polish Academy of Sciences: Technical Sciences, 2011
AC/DC/AC converter in a small hydroelectric power plant The article discusses application of AC/DC/AC converter cooperating with an induction generator in small hydroelectric power plants. The induction generator works with power grid or a separated group of receivers, enabling to generate power even at low speeds of the turbine.
A. Sikorski, M. Korzeniewski
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Power factor improvement using nine switch AC-DC-AC converter

2016 IEEE 6th International Conference on Power Systems (ICPS), 2016
This paper presents an application of nine switch converter (NSC) for power factor improvement of 3-phase supply. Power factor improvement is achieved by controlling DC link capacitor voltage. To control capacitor voltage PID controller is used. Modified pulse width modulation with third harmonic injection technique is incorporated in NSC.
Chaitanya N. Jibhakate, Madhuri A. Chaudhari, Mohan M. Renge   +2 more
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Improved Direct Power Control of Grid-Connected DC/AC Converters

IEEE Transactions on Power Electronics, 2009
This paper proposes new direct power control (DPC) strategies for three-phase DC/AC converters with improved dynamic response and steady-state performance. As with an electrical machine, source and converter flux, which equal the integration of the respective source and converter voltage, are used to define active and reactive power flow.
Zhi, D., Xu, Lie, Williams, B.W.
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Operational Amplifier Based Low Power dc-ac Converter for Domestic Applications

2020 4th International Conference on Trends in Electronics and Informatics (ICOEI)(48184), 2020
In Indian households, voltage source inverters (VSIs) are generally found as a part of uninterruptible power supplies for washing machines, refrigerators or air-conditioning units. Besides power electronic switches, the power circuit of VSI comprises of gate drivers and snubber circuitry. This results in increased component count and complexity. With a
Apurv Patel, Amit V. Sant
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Sliding-mode control of power converters: AC/DC converters & DC/AC inverters

International Journal of Control, 2018
Sliding-Mode Control (SMC) has been widely utilised to control nonlinear systems with uncertain dynamics.
Yazan M. Alsmadi, Vadim Utkin, Mohammed Haj-Ahmed, Longya Xu, Almoataz Y. Abdelaziz   +4 more
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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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