Proceedings ArticleDOI
Challenges in achieving high performance in boost PFC converter
Harish Sudhakaran Nair,N Lakshminarasamma +1 more
- pp 1-6
TLDR
The nature of these large signal variations and effect of a linear controller in this converter is analyzed and certain issues that lead to performance degradation in the converter are highlighted based on simulation results.Abstract:
Boost type front end Power Factor Correction (PFC) converters are used to obtain a sinusoidal input current which is in phase with the input sinusoidal voltage while at the same time maintaining the output voltage constant. This front end stage is required to conform to harmonic norms. Unlike a DC-DC boost converter with small signal input variations about the quiescent operating point, the boost PFC converter is subjected to large signal variations in every half line cycle. In this paper, the nature of these large signal variations and effect of a linear controller in this converter is analyzed. Further, certain issues that lead to performance degradation in the converter are highlighted based on simulation results.read more
Citations
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Journal ArticleDOI
Online Estimation of ESR for DC-Link Capacitor of Boost PFC Converter Using Wavelet Transform Based Time–Frequency Analysis Method
TL;DR: In this paper, an online ESR estimation method of aluminum electrolytic capacitor (AEC) was proposed by using the wavelet transform (WT) based time-frequency analysis, and the relationship between ESR and the jump amount of output voltage at turn- off moments was analyzed first, and then the ESR calculation model was derived using WT with the Wavelet basis of the first derivative of Gaussian function.
Journal ArticleDOI
An Improved Digital Algorithm for Boost PFC Converter Operating in Mixed Conduction Mode
TL;DR: An improved digital algorithm based on predictive control for the operation of a boost power factor correction (PFC) converter in the mixed conduction mode (MCM) is proposed and evaluated experimentally in terms of current tracking, current harmonics, and computation times.
Journal ArticleDOI
A Computationally Simple Predictive CCM Average Current Controller With Nearly Zero Tracking Error for Boost PFC Converter
TL;DR: A computationally simple predictive continuous conduction mode average current controller based on the concept of moving averages for the boost PFC converter and achieves nearly zero tracking error in the average inductor current is proposed.
Journal ArticleDOI
PFC Single-Phase AC/DC Boost Converters: Bridge, Semi-Bridgeless, and Bridgeless Topologies
José R. Ortiz-Castrillón,Gabriel E. Mejia-Ruiz,Nicolás Muñoz-Galeano,Jesús M. López-Lezama,Sergio D. Saldarriaga-Zuluaga +4 more
TL;DR: An extensive review of PFC single-phase AC/DC converters operating with the Boost converter topology for low and medium voltage as well as and power appliances and a comparison performance in terms of P FC, Total Harmonic Distortion, power capacity, electromagnetic compatibility (EMC), number of elements, and efficiency is included.
Proceedings ArticleDOI
Implementation Aspects of a Single Phase Boost PFC Converter
TL;DR: The practical challenges and implementation aspects with respect to the topology and control in a single phase boost PFC converter and digital implementations with PI current controller and with predictive current controller are highlighted.
References
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Journal ArticleDOI
Single phase power factor correction: a survey
TL;DR: A review of the most interesting solutions for single phase and low power applications is carried out in this article, where the major advantages and disadvantages are highlighted and the field of application is found.
Average current mode control of switching power supplies
TL;DR: Average current mode control may be used effectively to control currents other than inductor current, allowing a much broader range of topological application.
Journal ArticleDOI
On the zero-crossing distortion in single-phase PFC converters
TL;DR: In this article, a simple linear model is presented which reveals two previously unknown causes for zero-crossing distortion, namely, the leading phase of the input current and the lack of critical damping in the current loop.
Journal ArticleDOI
A Simple Digital DCM Control Scheme for Boost PFC Operating in Both CCM and DCM
Abstract: Digital average current controllers for boost power factor correctors (PFCs) are usually designed for continuous conduction mode (CCM). However, discontinuous conduction mode (DCM) appears in the inductor current near the zero crossings of the input current at light loads, resulting in input current distortion. It is caused by inaccurate average current values obtained in DCM and by the linear CCM PFC controller that is unable to ensure input current shaping in DCM whereby the converter exhibits nonlinear characteristic. This paper proposes a simple digital DCM control scheme that is achieved with minimal changes to the CCM average current control structure. It is mathematically and computationally simple. The result of all arithmetic operations in the proposed current control loop to obtain the desired control output can be achieved in a single clock cycle, whereas other DCM control schemes require multiple clock cycles. Good input current shaping is achieved in both CCM and DCM with the proposed CCM-DCM digital controller.
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