Results 261 to 270 of about 22,499 (318)

AN ENHANCED POWER DC-AC BUCK CONVERTER

DYNA ENERGIA Y SOSTENIBILIDAD, 2023
ABSTRACT: This paper presents an enhanced power DC-AC buck converter.The main aim of this research paper is to ensure that the conventional H-bridge DC-AC buck converter is operated practically without delay time between the complementary power switches on the same leg.The enhanced version is realized by serially connecting sized inductor-capacitor ...
CANDIDUS U EYA, CHINEDU TOBE, OMEJE LUKE, BENJAMIN UGWU   +3 more
openaire   +1 more source

Exact inversion with a boost DC/AC power converter

2015 IEEE International Symposium on Circuits and Systems (ISCAS), 2015
The use of DC-DC boost-based switched converters for DC-AC step-up inversion applications has been long handicapped by the fact that it requires non-offset, periodic current reference profiles that satisfy an Abel differential equation of the 2nd kind, and this is a challenging problem because the corresponding vector field becomes nonsmooth in zero ...
Josep M. Olm, Domingo Biel
openaire   +1 more source

DC-AC power converter using sigma-delta modulation

2010 8th Workshop on Intelligent Solutions in Embedded Systems, 2010
Recently great effort has been done in the development of high efficient DC-AC switching power converters for renewable energies and in particular for solar cells. The common algorithm used to control DC-AC switching power converters is Pulse Width Modulation.
Rocco D. d'Aparo, Giorgio Crostella, Davide Nicoletti, Simone Orcioni, Massimo Conti   +4 more
openaire   +1 more source

Predictive power control of an AC/DC/AC converter

Fourtieth IAS Annual Meeting. Conference Record of the 2005 Industry Applications Conference, 2005., 2005
This paper presents a new control scheme for a regenerative AC/DC/AC converter using model based predictive control. The control strategy minimizes quality functions, which represent the desired behavior of the converter. At the inverter side, the load current error is minimized, while at the input side, the active and reactive powers are controlled ...
J. Rodriguez, J. Pontt, P. Correa, P. Lezana, P. Cortes   +4 more
openaire   +1 more source

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, Dawei, Xu, Lie, Williams, Barry
openaire   +3 more sources

Monte Carlo simulation of AC/DC/AC power converter distortion

2001 IEEE Porto Power Tech Proceedings (Cat. No.01EX502), 2002
Probabilistic analyses of AC/DC/AC power converter harmonic and interharmonic distortion are performed by using the Monte Carlo simulation. Starting from previous experiences of some of the authors, an analytical and simplified conversion system model recently proposed is recalled and discussed. A new model of the control system is presented. Different
R. CARBONE, D. CASTALDO, F. DE ROSA, LANGELLA, Roberto, TESTA, Alfredo   +4 more
openaire   +2 more sources

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 A. Haj-Ahmed, Longya Xu, Almoataz Y. Abdelaziz   +4 more
openaire   +1 more source

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
openaire   +1 more source

Efficiency improvement of a DC/AC converter with the power decoupling capability

2012 Twenty-Seventh Annual IEEE Applied Power Electronics Conference and Exposition (APEC), 2012
Single-phase DC/AC converters require large electrolytic capacitors to reduce the DC bus voltage ripples at twice the grid frequency. In this paper, a boost-type power decoupling circuit is adopted to absorb the low frequency ripple, and allow the use of film capacitors for long life-time as required by the photovoltaic power conversion system ...
Chia-Tse Lee, Yen-Ming Chen, Li-Chung Chen, Po-Tai Cheng   +3 more
openaire   +1 more source

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
openaire   +1 more source