Design Procedure to Minimize Boost PFC Volume Concerning the Trade-offs Among Switching Frequency, Input Current Ripple and Soft-Switching

2006 ◽  
Author(s):  
D. Damasceno ◽  
L. Schuch ◽  
J.R. Pinheiro
Keyword(s):  
Design Procedure ◽  
Soft Switching ◽  
Input Current ◽  
Switching Frequency ◽  
Trade Offs ◽  
Current Ripple

scholarly journals Differential Evolution Based Algorithm for Optimal Current Ripple Cancelation in an Unequal Interleaved Power Converter

Mathematics ◽  
2021 ◽  
Vol 9 (21) ◽  
pp. 2755
Author(s):  
Julio C. Rosas-Caro ◽  
Pedro M. García-Vite ◽  
Alma Rodríguez ◽  
Abraham Mendoza ◽  
Avelina Alejo-Reyes ◽  
...  
Keyword(s):  
Differential Evolution ◽  
Differential Evolution Algorithm ◽  
Power Converter ◽  
Input Current ◽  
Switching Frequency ◽  
Duty Cycles ◽  
Numerical Experimentation ◽  
Evolution Algorithm ◽  
Power Electronics Converter ◽  
Current Ripple

This paper proposes an optimal methodology based on the Differential Evolution algorithm for obtaining the set of duty cycles of a recently proposed power electronics converter with input current ripple cancelation capability. The converter understudy was recently introduced to the state-of-the-art as the interleaved connection of two unequal converters to achieve low input current ripple. A latter contribution proposed a so-called proportional strategy. The strategy can be described as the equations to relate the duty cycles of the unequal power stages. This article proposes a third switching strategy that provides a lower input current ripple than the proportional strategy. This is made by considering duty cycles independently of each other instead of proportionally. The proposed method uses the Differential Evolution algorithm to determine the optimal switching pattern that allows high quality at the input current side, given the reactive components, the switching frequency, and power levels. The mathematical model of the converter is analyzed, and thus, the decision variables and the optimization problem are well set. The proposed methodology is validated through numerical experimentation, which shows that the proposed method achieves lower input current ripples than the proportional strategy.

Soft-Switching Boost Half-Bridge Converter with High Voltage Gain and Low Input Current Ripple

2012 ◽  
Vol 424-425 ◽  
pp. 1093-1096
Author(s):  
Hyun Lark Do
Keyword(s):  
High Voltage ◽  
High Efficiency ◽  
Soft Switching ◽  
Input Current ◽  
Voltage Gain ◽  
Switching Loss ◽  
Switching Operation ◽  
Low Input ◽  
High Voltage Gain ◽  
Current Ripple

A soft-switching boost half-bridge converter with high voltage gain and low input current ripple is proposed in this paper. In the proposed converter, a coupled inductor is used at the boost converter stage to reduce the input current ripple. The half-bridge converter stage provides soft-switching operation and high voltage gain. Also, the reverse-recovery problem of output diodes is significantly alleviated by utilizing the leakage inductance of the transformer. Due to the soft-switching operation of all switching devices, the switching loss is significantly reduced and the high efficiency is obtained. The feasibility and performance of the proposed converter were verified on an experimental prototype

scholarly journals 4-level capacitor-clamped boost converter with hard-switching and soft-switching implementations

2019 ◽  
Vol 10 (1) ◽  
pp. 288
Author(s):  
A.N. Kasiran ◽  
Asmarashid Ponniran ◽  
A.A. Bakar ◽  
M.H. Yatim
Keyword(s):  
Pulse Width Modulation ◽  
Boost Converter ◽  
Soft Switching ◽  
Switching Frequency ◽  
Switching Loss ◽  
Snubber Circuit ◽  
High Switching Frequency ◽  
Parameters Analysis ◽  
Very High ◽  
Current Ripple

This paper presents parameters analysis of 4-level capacitor-clamped boost converter with hard-switching and soft-switching implementation. Principally, by considering the selected circuit structure of the 4-level capacitor-clamped boost converter and appropriate pulse width modulation (PWM) switching strategy, the overall converter volume able to be reduced. Specifically, phase-shifted of 120° of each switching signal is applied in the 4-level capacitor-clamped boost converter in order to increase the inductor current ripple frequency, thus the charging and discharging times of the inductor is reduced. Besides, volume of converters is greatly reduced if very high switching frequency is considered. However, it causes increasing of semiconductor losses and consequently the converter efficiency is affected. The results show that the efficiency of 2-level conventional boost converter and 4-level capacitor-clamped boost converter are 98.59% and 97.67%, respectively in hard-switching technique, and 99.31% and 98.15%, respectively in soft-switching technique. Therefore, by applying soft-switching technique, switching loss of the semiconductor devices is greatly minimized although high switching frequency is applied. In this study, passive lossless snubber circuit is selected for the soft-switching implementation in the 4-level capacitor-clamped boost converter. Based on the simulation results, the switching loss is approximately eliminated by applying soft-switching technique compared to the hard-switching technique implementation.

scholarly journals Input Current Ripple Analysis of Multiphase PWM Inverters

2018 ◽  
Vol 9 (3) ◽  
pp. 1432
Author(s):  
Anwar Muqorobin ◽  
Pekik Argo Dahono
Keyword(s):  
Experimental Results ◽  
Input Current ◽  
Switching Frequency ◽  
Analysis Method ◽  
Font Size ◽  
Ripple Reduction ◽  
Current Ripple ◽  
Phase Number

<span style="font-family: 'Times New Roman','serif'; font-size: 9pt; mso-fareast-font-family: 'MS Mincho'; mso-ansi-language: IN; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;">This paper investigates the </span><span style="font-family: 'Times New Roman','serif'; font-size: 9pt; mso-fareast-font-family: 'MS Mincho'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;" lang="EN-US">relationship between inverter </span><span style="font-family: 'Times New Roman','serif'; font-size: 9pt; mso-fareast-font-family: 'MS Mincho'; mso-ansi-language: IN; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;">phase number </span><span style="font-family: 'Times New Roman','serif'; font-size: 9pt; mso-fareast-font-family: 'MS Mincho'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;" lang="EN-US">and </span><span style="color: black; font-family: 'Times New Roman','serif'; font-size: 9pt; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA; mso-bidi-font-style: italic;" lang="EN-US">inverter</span><span style="font-family: 'Times New Roman','serif'; font-size: 9pt; mso-fareast-font-family: 'MS Mincho'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;" lang="EN-US"> input current ripple. Analysis results show </span><span style="font-family: 'Times New Roman','serif'; font-size: 9pt; mso-fareast-font-family: 'MS Mincho'; mso-ansi-language: IN; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;">that </span><span style="font-family: 'Times New Roman','serif'; font-size: 9pt; mso-fareast-font-family: 'MS Mincho'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;" lang="EN-US">increasing </span><span style="font-family: 'Times New Roman','serif'; font-size: 9pt; mso-fareast-font-family: 'MS Mincho'; mso-ansi-language: IN; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;">the phase number more than nine cannot provide significant input current ripple reduction. </span><span style="font-family: 'Times New Roman','serif'; font-size: 9pt; mso-fareast-font-family: 'MS Mincho'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;" lang="EN-US">The input current ripple is not </span><span style="color: black; font-family: 'Times New Roman','serif'; font-size: 9pt; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA; mso-bidi-font-style: italic;" lang="EN-US">affected</span><span style="font-family: 'Times New Roman','serif'; font-size: 9pt; mso-fareast-font-family: 'MS Mincho'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;" lang="EN-US"> by the switching frequency. </span><span style="font-family: 'Times New Roman','serif'; font-size: 9pt; mso-fareast-font-family: 'MS Mincho'; mso-ansi-language: IN; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;">Simulation and experimental results are included in this paper to </span><span style="font-family: 'Times New Roman','serif'; font-size: 9pt; mso-fareast-font-family: 'MS Mincho'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;" lang="EN-US">show the validity of the proposed analysis method</span><span style="font-family: 'Times New Roman','serif'; font-size: 9pt; mso-fareast-font-family: 'MS Mincho'; mso-ansi-language: IN; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;">.</span>

New auxiliary circuit for boost converter to achieve soft-switching operation and zero input current ripple

2020 ◽  
Vol 13 (17) ◽  
pp. 3910-3921
Author(s):  
Peyman Alavi ◽  
Arash Khoshkbar-Sadigh ◽  
Ebrahim Babaei ◽  
Parham Mohseni ◽  
Vafa Marzang ◽  
...  
Keyword(s):  
Boost Converter ◽  
Soft Switching ◽  
Input Current ◽  
Switching Operation ◽  
Current Ripple ◽  
Auxiliary Circuit
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