BRIDGELESS POWER FACTOR CORRECTION THESIS

Log In Sign Up. The duty cycle is calculated based on reference current, inductor current ,input voltage and reference output voltage. A Caltech Library Service. 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. Ads help cover our server costs. New approach for Power Factor Correction is introduced in the first part.

The duty cycle is calculated based on reference current, inductor current ,input voltage and reference output voltage. This project proposes a scheme in the soft switching of an auxiliary resonant circuit to accomplishment over the switching losses and to reduce the stress of boost Operation, the basic idea of soft switching is provided. Help Center Find new research papers in: New approach for Power Factor Correction is introduced in the first part. In this paper, first a ripple estimation circuit is used to eliminate the double line frequency component of sampled output voltage. The major advantages and disadvantages are highlighted. 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.

New developments in single phase power factor correction – CaltechTHESIS

Topologies with bipolar gain characteristics are proposed to be used, naturally providing constant DC output from non-rectified AC input. This project proposes a scheme in the soft switching of an auxiliary resonant circuit to accomplishment over the switching losses and to reduce the stress of boost Operation, the basic idea of soft switching is provided.

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. Due to these advantages, it can be used for electric vehicle charging application.

There are multiple solutions in which line current is sinusoidal.

bridgeless power factor correction thesis

This paper describes the design of a fuzzy logic piwer 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 By the use of theesis proposed control technique, reduce THD in the input current with the output voltage vo regulation.

  NASSP DISSERTATION AWARD

This converter can improve the power quality and can control the output voltage according to the demand of the battery. The bridgeless converter is designed for obtaining the low conduction losses and requirement of low size of heat sink for the switches.

No commercial reproduction, distribution, display or performance bridgelews in this work are provided. 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 duty cycle is calculated based on reference current, inductor current ,input voltage and reference output voltage. This non-isolated high gain bridgelews PFC converter automatically balances the output voltages for an unbalanced load without the need for any additional control strategy or auxiliary circuit.

New developments in single phase power factor correction

The fuzzy logic controller has been implemented to the system by developing fuzzy logic control algorithm. An auxiliary resonant circuit is used to activate the main IGBT switch to turn it on factoe 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.

The simulation results are shown that voltage output is able to be control in steady state condition for single phase AC to DC power factor correction interleaved boost converter by using this methodology. The results of these experiments can be adapted for use in the circuit selection of high performance converters with power factor improvement circuits. In EVs and HEVs, a battery is used as the main power source, so that battery charger corfection treated as the core technology. More information and software credits.

Here boost converter is used as PFC converter.

Power Factor Correction (pfc)

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. This strategy achieves a fast dynamic response and near cortection PF. Practical design of such converter is presented and analyzed, theoretical predictions are confirmed by experimental data; proposed idea of Power Factor Correction is verified.

  DOCTORAL DISSERTATION FELLOWSHIP UCONN

ARM cortex-M4 processors family appeared in year and since than becomes a most common processor family used in bridgelless phone applications and other appliances including personal computers, televisions, photocopiers and similar.

General advantages and improvements corrcetion 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 major advantages and disadvantages are highlighted. Battery charger based on a unidirectional non-isolated boost power factor correction PFC converter for electric vehicles EV is introduced here.

Skip to main content. 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. This paper provides a concise review of the most interesting passive and active filters of power factor correction, for single phase and low power applications.

New developments in single phase power factor correction. It was 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 increasing growth in the use of electronic equipment in recent years has New approach for Power Factor Correction is introduced in the first part. New developments in single phase power factor correction Citation Ikriannikov, Alexandr New developments in single phase power factor correction.

bridgeless power factor correction thesis

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.