نتایج جستجو برای: four switch inverter

تعداد نتایج: 692466  

Journal: :Energies 2023

The high-frequency modulation method (HFM) for a switched capacitor (SC) inverter often leads to high switching loss since it increases frequency. In order reduce the frequency and in HFM SC inverter, this paper proposes novel hybrid strategy as well corresponding demo topology. limits number of switches, thus reducing significantly. Meanwhile, topology maintains merits current such low switch ...

2016
S. P. Ganesh P. Venkatesh C. Yuvaraj M. Sudhakaran

This paper presents the implementation of Single Phase 7 level Multilevel DC link (MLDCL) Inverter with Half Bridge Cell topology. For N level inverter, (N-1)/2 half bridge cells are required with the same number of voltage sources. In this inverter topology, 3 Half Bridge Cells are used along with 3 voltage sources, each have 100V DC. These half bridges are connected in series to form a Multil...

2006
Tanes Tanitteerapan

This paper, electronic resonant ballast for a small photovoltaic powered street lighting system in remote rural area was proposed. The street lighting system was designed for rural area where the electrical transmission line cannot be commonly serviced and it is the cascade systems of the solar arrays, switching battery charger, and electronics ballast with small fluorescent lamp. The ballast i...

Journal: :Energies 2022

This paper proposes a fully analytical loss model to reduce circling currents and improve the power efficiency of class Φ2 inverter. Firstly, expression switching node voltage is derived by analyzing its harmonic components. Based on result, switch modeled as source, where circuit simplified linear network expressions branch are solved. Secondly, root mean square (RMS) values component losses c...

2008
Sergey Ryvkin Richard Schmidt-Obermöller Andreas Steimel

SLIDING-MODE control is a control technique used widely in electromechanical systems today [1–4]. It bases on using main characteristics of modern inverter semiconductor switches as Insulated Gate-Commutated Transistors (IGCTs) or Insulated-Gate Bipolar Transistors (IGBTs) that are operating in switch mode with distinctly higher switching frequency [5] than formerly used Gate-Turn-Off Thyristor...

2002
George Koutroumpezis Konstantinos Tatas Dimitrios Soudris Spyros Blionas Kostas Masselos Adonios Thanailakis

A run-time reconfiguable array of multipliers architecture is introduced. The novel multiplier can be easily reconfigured to trade bitwidth for array size, thus maximizing the utilization of available hardware, multiply signed or unsigned data, and uses part of its structure when needed. The proposed reconfigurable circuit consists of an array of m×m multipliers, a few arrays of adders each add...

2011
Jorge O. Estima António J. Marques Cardoso

This paper presents a comparative study of two distinct modulation strategies applied to a permanent magnet synchronous motor drive, under inverter faulty operating conditions. A rotor field oriented control is used and a performance evaluation is conducted by comparing a hysteresis current control with a space vector modulation technique. Three different operating conditions are considered: no...

2014
PRAVEEN KUMAR RAO

This paper presents a hybrid modulation technique consisting of singe-reference six-pulsemodulation (SRSPM) for front-end dc/dc converter and 33% modulation for three-phase inverter. Employing proposed novel SRSPM to control front-end dc/dc converter, high frequency (HF) pulsating dc voltage waveform is produced, which is equivalent to six-pulse output at 6× line frequency (rectified 6-pulse ou...

Journal: :Computers & Mathematics with Applications 2010
Pandian Vasant Nader Barsoum Jeffrey Frank Webb

Recent advances in the power system handling capabilities of static switches have made the use of the voltage source inverter (VSI) feasible at both transmission and distribution levels.

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