BRIDGELESS POWER FACTOR CORRECTION THESIS

Ads help cover our server costs. This converter can improve the power quality and can control the output voltage according to the demand of the battery. New approach for Power Factor Correction is introduced in the first part. General advantages and improvements of Power Factor value in bridge-less topologies in comparison to conventional converters are analyzed and illustrated experimentally in the third part of the thesis. The increasing growth in the use of electronic equipment in recent years has resulted in a greater need to ensure that the line current harmonic content of any equipment connected to the ac mains is limited to meet regulatory standards. New developments in single phase power factor correction.

Remember me on this computer. For EV charging application one of the important factors is that the battery chargers should consume sinusoidal current with controlled power factor for contribute to the power quality in the future Smart Grids and high voltage gain for charging the battery. Practical design of such converter is presented and analyzed, theoretical predictions are confirmed by experimental data; proposed idea of Power Factor Correction is verified. Key features are analyzed and illustrated by experimental data. Based on this, an optimal topology is selected for which an additional comparative analysis involving input line measure improvement control is conducted by using PI controller.

Log In Sign Up. An experimental prototype of the converter was setup and the results were verified.

Power Factor Correction (pfc)

A simulation and practical results were presented. The bridgeless converter is designed for obtaining the low conduction losses and requirement of low size of heat sink for the switches. A Bridgeless Cuk converter is constructed to operate corredtion discontinuous inductor current mode to improve the quality of power and power factor at the AC Diode bridge is also one the hottest components of PFC, which is an important issue in terms of thermal management.

This requirement is usually satisfied by incorporating some form of Power Factor Correction PFC circuits to shape the input phase currents, so that they are sinusoidal in nature and are in phase with the input phase voltages. This class of converters presents an opportunity for accurate comparison with related conventional topologies, which is included to show the advantages of the new approach.

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In EVs and HEVs, a battery is used as the main power source, so that battery charger is treated as the core technology. Enter the email address you signed up with and we’ll email you a reset link.

A Bridgeless Cuk converter is constructed to operate at discontinuous inductor current mode to improve the quality of power and power factor at the AC mains for better speed control. Then the result of ripple estimation is controlled by predictive controller and fuzzy logic controller.

Power Factor Correction (pfc) Research Papers –

This paper describes the design of a fuzzy logic controller using voltage output as feedback for significantly improving the dynamic performance of single phase AC to DC power factor correction interleaved boost converter by using Due to these advantages, it can be used for electric vehicle charging application.

Help Center Find new research papers in: New approach for Power Factor Correction is introduced in the first part.

bridgeless power factor correction thesis

Here boost converter is used as PFC converter. Idea of shifting input line rectification to switching elements of the power stage is proposed for certain topologies and verified on practical example.

bridgeless power factor correction thesis

An auxiliary resonant circuit is used to activate the main IGBT switch to turn it on over a zero voltage condition of the switch and to turn it off during zero current condition parallelly executing together with turn on and off of the switch. Battery charger based on a unidirectional non-isolated boost power factor correction PFC converter for electric vehicles EV is introduced here.

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Remember me on this computer. Skip to main content. The duty cycle is calculated based on reference current, inductor current ,input voltage and reference output voltage. Based on xorrection, an optimal topology is selected for which an additional comparative analysis involving input line measure improvement control is conducted by using PI controller.

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The major advantages and disadvantages are highlighted. General advantages and improvements of Power Factor value in bridge-less topologies in comparison to conventional converters are analyzed and illustrated experimentally in the third part of the thesis. This non-isolated high gain boost PFC converter automatically dorrection the output voltages for an unbalanced load without the need for any additional control strategy or auxiliary circuit.

In this paper, first a ripple estimation circuit is used to eliminate the double line frequency component More information and software credits. The issues of increasing the value of the Power Factor PF and increasing efficiency of transferring the power in such applications motivated this thesis. The design and calculation of the components especially for the inductor has been done to ensure the converter operates in continuous conduction mode.

New developments in single phase power factor correction

It bridgekess tested modified average current method with modification in sense of histeresis, in sense of current sensor and in sense of driver in order to decrease operating voltage and to increase efficiency for low power, low speed wind power generation systems. The evaluation of the output has been carried out and compared by software simulation using MATLAB software between the open loop and closed loop circuit.

The increasing growth in the use of electronic equipment in recent years has resulted in a greater need to ensure that the line current harmonic content of any equipment connected to the ac mains is limited to meet regulatory standards. Zero voltage conduction takes place at a closed switch for which a Conventional PWM boost converter is used, a resonant path with auxiliary soft-switch in the application of power factor correction.