Abstract
This paper describes the conception and analysis of a unidirectional hybrid three-phase rectifier suitable for mediumand high-power applications. The rectifier is composed of a single-switch diode bridge boost-type rectifier in parallel with a pulsewidth modulation (PWM) three-phase unidirectional boost rectifier. The objective is to obtain a structure capable of providing sinusoidal input currents with low harmonic distortion and dc output voltage regulation. The diode rectifier operates at low frequency and has a higher outp ....etc

[:=Read Full Message Here=:]

please send this topic pdf and documentation ....etc

[:=Read Full Message Here=:]

Power Factor Correction of Linear and Non-linear Loads Employing a Single Phase Active Power Filter Based on a Full-Bridge Current Source Inverter Controlled Through the Sensor of the AC Mains Current
Abstract:
In the last years the number of non-linear loads has been increasing rapidly. This non-linear load had drawn a current form the AC Mains with harmonic components, leading to low power factor, low efficiency, interference by the EMI, among others. A classic solution is the use of passive filters, which ....etc

[:=Read Full Message Here=:]

instantaneous power control of d statcom with consideration of power factor correction ....etc

[:=Read Full Message Here=:]

K.D. Slack





ABSTRACT
The traditional approach to power factor correction in a facility is to add capacitors to individual loads such as motors and fluorescent lighting circuits, to add a capacitor bank with switching to a major distribution panel, or to add a capacitor bank with switching to the power input panel from the utility lines. Recently it has been shown that careful selection of high-efficiency motors for a facility can result in new motors with a significantly higher power factor than ....etc

[:=Read Full Message Here=:]

ppt on 'instantaneous power control of d statcom with consideration of power factor correction'. ....etc

[:=Read Full Message Here=:]

please help me to get a full project report as well as ppt for the topic BRIDGELESS POWER FACTOR BUCK CONVERTER.
please help me to get a full project report as well as ppt for the topic BRIDGELESS POWER FACTOR BUCK CO ....etc

[:=Read Full Message Here=:]

sir we need information like abstract, methdology and block diagram for this project
wireless power factor monitoring and controlling through pc
sir we need information like abstract, methdology and block diagram for this project ....etc

[:=Read Full Message Here=:]

Abstract”
This paper presents a simplified sinusoidal uninterruptible power supply (UPS) system. The proposed scheme includes features such as high power factor, low total harmonic distortion and good dynamic response at the ac output voltage. In addition, the scheme has the desirable characteristics of high efficiency, simple circuit and low cost compared with a traditional standalone multiple stages UPS with power factor correction. The paper also presents the circuit operation, the analysis and, experimental results of the proposed U ....etc

[:=Read Full Message Here=:]

Power Factor and improvement



Capacitance
Xc=106/2 fC = V/I
Capacitor current = kVAr x 1000 / V
The opposition to current in a capacitor is termed as capacitive reactance. The current in a purely capacitive circuit will lead the voltage by 90.


Effect of low power factor
kW capacity of the transformer is decreased
Cross-sectional area of the busbars and the switchgear must be increased
The kVA capacity of the alternator is more



....etc

[:=Read Full Message Here=:]