نتایج جستجو برای: power factor correction

تعداد نتایج: 1455146  

Journal: :International Journal of Power Electronics and Drive Systems (IJPEDS) 2015

2015
Fred C. Lee

A boost Power Factor Correction (PFC) front end converter followed by a circulating current for the soft switching flows only through the auxiliary circuit and a In recent years, dc power supplies have been widely used in industrial Lr is delivered to the capacitor C1 via transformer T. iLr (t) decreases linearly. I believe that I understand how a starting capacitor is used with an induction mo...

S. Saberi-Pouya T. Vazifehshenas

We calculate the stopping power for heavy-ion diclusters moving in a strongly coupled two-dimensional electron gas system by using the local field corrected dielectric function at finite temperature. We obtain a parameterized local field correction factor based on a relation between the thermal compressibility and exchange-correlation energy in two-dimension. The interpolated parameter is deriv...

2015
Ashima Kulshreshtha Anmol R. Saxena A. K. Wadhwani

The era of electronic devices in all loads due to the manufacturing technologies replaced many conventional electrical or mechanical loads including lighting loads where Light Emitting Diodes (LEDs) is becoming an emerging technique with many advantages. High frequency switching dc-dc converter is a new technology to control the load and the supply side simultaneously. Due to additional harmoni...

2014
T. Ajith Bosco

The main objective of the study is to analysis and design parallel boost power converter for power factor correction using an active filtering approach by implementing single-phase soft-switching technique with an active snubber circuit. Zero voltage transition to turn ON and zero current transition to turn OFF is implemented by the active snubber circuit for the main switches with no any furth...

Optimal capacitor placement, considering power system loss reduction, voltage profile improvement, line reactive power decrease and power factor correction, is of particular importance in power system planning and control. The distribution system operator calculates the optimal place, number and capacity of capacitors based on two major purposes: active power loss reduction and return on invest...

2015
L. KALAISELVI PG Scholar R. ARUN PRASAATH

In this paper, a three-level integrated ac–dc converter with power factor correction is presented. The proposed converter integrates the operation of the boost power factor correction and the three-level dc–dc converter. The converter is made to operate with two independent controllers—an input controller that performs power factor correction and regulates the dc bus and an output controller th...

2013
G. Premkumar B. Muthukumar T. Hiyama W. Hubbi T. Ortmeyer R. M. Mathur R. K. Varma S. K. M. Kodsi C. A. Canizares

Power factor correction is vital in present society. The two key benefits of power factor correction, which includes reduced power costs and higher system capacity. Implementation of Flexible AC Transmission Systems (FACTS) improves the power factor, power transfer capability and voltage stability. The shunt type of FACTS controller is used to either absorb or inject VARs into the system, there...

Journal: : 2021

THE PURPOSE. ?utipulse rectifiers are widely used as a nonlinear loads in industrial distribution systems. The advantage of mutipulse is low harmonic emission and high power factor. However input currents have wide spectrum including characteristic noncharacteristic harmonics. This has negative impact on the quality. Shunt capacitors simplest form reactive compensation systems with suffer from ...

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